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-rw-r--r--.dir-locals.el7
-rw-r--r--Makefile.am6
-rw-r--r--doc/build.scm2
-rw-r--r--doc/guix-cookbook.texi52
-rw-r--r--doc/guix.texi333
-rw-r--r--etc/news.scm25
-rw-r--r--gnu/build/vm.scm4
-rw-r--r--gnu/ci.scm30
-rw-r--r--gnu/local.mk92
-rw-r--r--gnu/packages/acl.scm4
-rw-r--r--gnu/packages/ada.scm10
-rw-r--r--gnu/packages/admin.scm52
-rw-r--r--gnu/packages/adns.scm31
-rw-r--r--gnu/packages/aidc.scm36
-rw-r--r--gnu/packages/algebra.scm10
-rw-r--r--gnu/packages/android.scm9
-rw-r--r--gnu/packages/arcan.scm6
-rw-r--r--gnu/packages/assembly.scm26
-rw-r--r--gnu/packages/attr.scm7
-rw-r--r--gnu/packages/audio.scm34
-rw-r--r--gnu/packages/autotools.scm44
-rw-r--r--gnu/packages/aux-files/guile-launcher.c7
-rw-r--r--gnu/packages/aux-files/python/sanity-check.py92
-rw-r--r--gnu/packages/aux-files/python/sitecustomize.py41
-rw-r--r--gnu/packages/avahi.scm2
-rw-r--r--gnu/packages/axoloti.scm8
-rw-r--r--gnu/packages/backup.scm11
-rw-r--r--gnu/packages/base.scm460
-rw-r--r--gnu/packages/bash.scm38
-rw-r--r--gnu/packages/bdw-gc.scm21
-rw-r--r--gnu/packages/benchmark.scm5
-rw-r--r--gnu/packages/bioinformatics.scm243
-rw-r--r--gnu/packages/bison.scm17
-rw-r--r--gnu/packages/boost.scm43
-rw-r--r--gnu/packages/bootloaders.scm42
-rw-r--r--gnu/packages/bootstrap.scm157
-rw-r--r--gnu/packages/build-tools.scm48
-rw-r--r--gnu/packages/calcurse.scm4
-rw-r--r--gnu/packages/calendar.scm8
-rw-r--r--gnu/packages/cdrom.scm2
-rw-r--r--gnu/packages/cedille.scm3
-rw-r--r--gnu/packages/certs.scm123
-rw-r--r--gnu/packages/check.scm333
-rw-r--r--gnu/packages/chemistry.scm3
-rw-r--r--gnu/packages/chez.scm20
-rw-r--r--gnu/packages/ci.scm2
-rw-r--r--gnu/packages/cmake.scm179
-rw-r--r--gnu/packages/commencement.scm1359
-rw-r--r--gnu/packages/compression.scm213
-rw-r--r--gnu/packages/connman.scm2
-rw-r--r--gnu/packages/cpio.scm10
-rw-r--r--gnu/packages/cran.scm25
-rw-r--r--gnu/packages/crates-io.scm5
-rw-r--r--gnu/packages/cross-base.scm59
-rw-r--r--gnu/packages/crypto.scm69
-rw-r--r--gnu/packages/cups.scm329
-rw-r--r--gnu/packages/curl.scm39
-rw-r--r--gnu/packages/databases.scm35
-rw-r--r--gnu/packages/datastructures.scm2
-rw-r--r--gnu/packages/dbm.scm14
-rw-r--r--gnu/packages/debug.scm4
-rw-r--r--gnu/packages/dictionaries.scm5
-rw-r--r--gnu/packages/display-managers.scm2
-rw-r--r--gnu/packages/django.scm84
-rw-r--r--gnu/packages/dlang.scm4
-rw-r--r--gnu/packages/docbook.scm127
-rw-r--r--gnu/packages/documentation.scm14
-rw-r--r--gnu/packages/ebook.scm6
-rw-r--r--gnu/packages/ed.scm4
-rw-r--r--gnu/packages/education.scm34
-rw-r--r--gnu/packages/elf.scm49
-rw-r--r--gnu/packages/emacs-xyz.scm83
-rw-r--r--gnu/packages/emacs.scm8
-rw-r--r--gnu/packages/emulators.scm32
-rw-r--r--gnu/packages/engineering.scm46
-rw-r--r--gnu/packages/entr.scm6
-rw-r--r--gnu/packages/file-systems.scm22
-rw-r--r--gnu/packages/file.scm5
-rw-r--r--gnu/packages/finance.scm7
-rw-r--r--gnu/packages/flashing-tools.scm6
-rw-r--r--gnu/packages/fontutils.scm187
-rw-r--r--gnu/packages/freedesktop.scm73
-rw-r--r--gnu/packages/game-development.scm23
-rw-r--r--gnu/packages/games.scm144
-rw-r--r--gnu/packages/gawk.scm14
-rw-r--r--gnu/packages/gcc.scm176
-rw-r--r--gnu/packages/gd.scm20
-rw-r--r--gnu/packages/gdb.scm15
-rw-r--r--gnu/packages/geo.scm6
-rw-r--r--gnu/packages/gettext.scm23
-rw-r--r--gnu/packages/ghostscript.scm42
-rw-r--r--gnu/packages/gimp.scm16
-rw-r--r--gnu/packages/gl.scm116
-rw-r--r--gnu/packages/glib.scm712
-rw-r--r--gnu/packages/gnome-xyz.scm2
-rw-r--r--gnu/packages/gnome.scm500
-rw-r--r--gnu/packages/gnupg.scm76
-rw-r--r--gnu/packages/gnuzilla.scm32
-rw-r--r--gnu/packages/golang.scm12
-rw-r--r--gnu/packages/gpodder.scm3
-rw-r--r--gnu/packages/gps.scm2
-rw-r--r--gnu/packages/graphics.scm19
-rw-r--r--gnu/packages/graphviz.scm117
-rw-r--r--gnu/packages/groovy.scm2
-rw-r--r--gnu/packages/gtk.scm1450
-rw-r--r--gnu/packages/guile-xyz.scm14
-rw-r--r--gnu/packages/guile.scm207
-rw-r--r--gnu/packages/haskell-xyz.scm5
-rw-r--r--gnu/packages/haskell.scm7
-rw-r--r--gnu/packages/hurd.scm19
-rw-r--r--gnu/packages/ibus.scm116
-rw-r--r--gnu/packages/icu4c.scm8
-rw-r--r--gnu/packages/image-processing.scm7
-rw-r--r--gnu/packages/image-viewers.scm9
-rw-r--r--gnu/packages/image.scm98
-rw-r--r--gnu/packages/imagemagick.scm4
-rw-r--r--gnu/packages/inkscape.scm4
-rw-r--r--gnu/packages/irc.scm2
-rw-r--r--gnu/packages/irods.scm19
-rw-r--r--gnu/packages/java-graphics.scm3
-rw-r--r--gnu/packages/java.scm103
-rw-r--r--gnu/packages/jemalloc.scm17
-rw-r--r--gnu/packages/julia.scm6
-rw-r--r--gnu/packages/kde-frameworks.scm15
-rw-r--r--gnu/packages/kde-multimedia.scm3
-rw-r--r--gnu/packages/kde-pim.scm14
-rw-r--r--gnu/packages/kde-plasma.scm3
-rw-r--r--gnu/packages/kde.scm10
-rw-r--r--gnu/packages/kerberos.scm24
-rw-r--r--gnu/packages/kodi.scm3
-rw-r--r--gnu/packages/language.scm10
-rw-r--r--gnu/packages/ld-wrapper.in3
-rw-r--r--gnu/packages/less.scm9
-rw-r--r--gnu/packages/libevent.scm18
-rw-r--r--gnu/packages/libffi.scm62
-rw-r--r--gnu/packages/libidn.scm15
-rw-r--r--gnu/packages/libreoffice.scm7
-rw-r--r--gnu/packages/libsigsegv.scm4
-rw-r--r--gnu/packages/linux.scm335
-rw-r--r--gnu/packages/lisp-xyz.scm52
-rw-r--r--gnu/packages/lisp.scm19
-rw-r--r--gnu/packages/llvm.scm33
-rw-r--r--gnu/packages/lua.scm7
-rw-r--r--gnu/packages/lxde.scm9
-rw-r--r--gnu/packages/machine-learning.scm64
-rw-r--r--gnu/packages/mail.scm17
-rw-r--r--gnu/packages/make-bootstrap.scm109
-rw-r--r--gnu/packages/man.scm27
-rw-r--r--gnu/packages/mastodon.scm2
-rw-r--r--gnu/packages/mate.scm9
-rw-r--r--gnu/packages/maths.scm211
-rw-r--r--gnu/packages/mes.scm288
-rw-r--r--gnu/packages/messaging.scm9
-rw-r--r--gnu/packages/mp3.scm2
-rw-r--r--gnu/packages/mpd.scm6
-rw-r--r--gnu/packages/mpi.scm12
-rw-r--r--gnu/packages/multiprecision.scm12
-rw-r--r--gnu/packages/music.scm40
-rw-r--r--gnu/packages/ncurses.scm47
-rw-r--r--gnu/packages/netpbm.scm8
-rw-r--r--gnu/packages/nettle.scm30
-rw-r--r--gnu/packages/networking.scm43
-rw-r--r--gnu/packages/ninja.scm10
-rw-r--r--gnu/packages/node.scm22
-rw-r--r--gnu/packages/nss.scm80
-rw-r--r--gnu/packages/ocaml.scm15
-rw-r--r--gnu/packages/onc-rpc.scm20
-rw-r--r--gnu/packages/openldap.scm68
-rw-r--r--gnu/packages/orpheus.scm9
-rw-r--r--gnu/packages/package-management.scm4
-rw-r--r--gnu/packages/pascal.scm6
-rw-r--r--gnu/packages/password-utils.scm10
-rw-r--r--gnu/packages/patches/atlas-gfortran-compat.patch37
-rw-r--r--gnu/packages/patches/bdb-5.3-atomics-on-gcc-9.patch22
-rw-r--r--gnu/packages/patches/biber-fix-encoding-write.patch31
-rw-r--r--gnu/packages/patches/biber-sortinithash.patch1666
-rw-r--r--gnu/packages/patches/binutils-loongson-workaround.patch14
-rw-r--r--gnu/packages/patches/binutils-mingw-w64-timestamp.patch39
-rw-r--r--gnu/packages/patches/coreutils-gnulib-tests.patch45
-rw-r--r--gnu/packages/patches/cups-CVE-2020-10001.patch47
-rw-r--r--gnu/packages/patches/curl-7.76-use-ssl-cert-env.patch64
-rw-r--r--gnu/packages/patches/curl-use-ssl-cert-env.patch4
-rw-r--r--gnu/packages/patches/dbus-CVE-2020-12049.patch58
-rw-r--r--gnu/packages/patches/docbook-xsl-nonrecursive-string-subst.patch11
-rw-r--r--gnu/packages/patches/docbook-xsl-support-old-url.patch17
-rw-r--r--gnu/packages/patches/doxygen-1.8.17-runtests.patch73
-rw-r--r--gnu/packages/patches/doxygen-test.patch60
-rw-r--r--gnu/packages/patches/findutils-test-rwlock-threads.patch38
-rw-r--r--gnu/packages/patches/fontconfig-cache-ignore-mtime.patch15
-rw-r--r--gnu/packages/patches/fontconfig-hurd-path-max.patch17
-rw-r--r--gnu/packages/patches/freeglut-gcc-compat.patch53
-rw-r--r--gnu/packages/patches/ganeti-preserve-PYTHONPATH.patch21
-rw-r--r--gnu/packages/patches/gcc-10-cross-environment-variables.patch51
-rw-r--r--gnu/packages/patches/gcc-cross-gxx-include-dir.patch73
-rw-r--r--gnu/packages/patches/gd-Revert-fix-303-gdlib.pc-use-Requires-instead-of-Libs.patch179
-rw-r--r--gnu/packages/patches/gdk-pixbuf-CVE-2020-29385.patch53
-rw-r--r--gnu/packages/patches/ghostscript-CVE-2020-15900.patch36
-rw-r--r--gnu/packages/patches/ghostscript-freetype-compat.patch35
-rw-r--r--gnu/packages/patches/ghostscript-no-header-creationdate.patch22
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27218.patch132
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-01.patch176
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-02.patch264
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-03.patch136
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-04.patch308
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-05.patch47
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-06.patch94
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-07.patch118
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-08.patch94
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-09.patch98
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-10.patch52
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-11.patch57
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-12.patch30
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-13.patch32
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-14.patch32
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-15.patch95
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-16.patch43
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-17.patch37
-rw-r--r--gnu/packages/patches/glib-CVE-2021-27219-18.patch232
-rw-r--r--gnu/packages/patches/glib-CVE-2021-28153.patch283
-rw-r--r--gnu/packages/patches/glib-skip-failing-test.patch27
-rw-r--r--gnu/packages/patches/glib-tests-timer.patch15
-rw-r--r--gnu/packages/patches/glibc-2.27-git-fixes.patch702
-rw-r--r--gnu/packages/patches/glibc-2.27-supported-locales.patch33
-rw-r--r--gnu/packages/patches/glibc-2.28-git-fixes.patch248
-rw-r--r--gnu/packages/patches/glibc-2.28-supported-locales.patch33
-rw-r--r--gnu/packages/patches/glibc-2.31-hurd-clock_gettime_monotonic.patch84
-rw-r--r--gnu/packages/patches/glibc-bootstrap-system.patch37
-rw-r--r--gnu/packages/patches/glibc-cross-objcopy.patch159
-rw-r--r--gnu/packages/patches/glibc-cross-objdump.patch159
-rw-r--r--gnu/packages/patches/glibc-dl-cache.patch140
-rw-r--r--gnu/packages/patches/glibc-hurd-clock_gettime_monotonic.patch19
-rw-r--r--gnu/packages/patches/gnutls-CVE-2021-20231.patch62
-rw-r--r--gnu/packages/patches/gnutls-CVE-2021-20232.patch60
-rw-r--r--gnu/packages/patches/graphviz-CVE-2020-18032.patch49
-rw-r--r--gnu/packages/patches/guile-ssh-fix-test-suite.patch217
-rw-r--r--gnu/packages/patches/guile-ssh-read-error.patch18
-rw-r--r--gnu/packages/patches/icu4c-CVE-2020-10531.patch127
-rw-r--r--gnu/packages/patches/inetutils-hurd.patch583
-rw-r--r--gnu/packages/patches/jsoncpp-fix-inverted-case.patch22
-rw-r--r--gnu/packages/patches/lcms-CVE-2018-16435.patch171
-rw-r--r--gnu/packages/patches/libtirpc-hurd-client.patch50
-rw-r--r--gnu/packages/patches/libxml2-parent-pointers.patch228
-rw-r--r--gnu/packages/patches/libxml2-terminating-newline.patch33
-rw-r--r--gnu/packages/patches/libxml2-xpath-recursion-limit.patch20
-rw-r--r--gnu/packages/patches/libxt-guix-search-paths.patch13
-rw-r--r--gnu/packages/patches/mariadb-cmake-compat.patch17
-rw-r--r--gnu/packages/patches/meson-for-build-rpath.patch24
-rw-r--r--gnu/packages/patches/mit-krb5-hurd.patch15
-rw-r--r--gnu/packages/patches/mit-krb5-qualify-short-hostnames.patch29
-rw-r--r--gnu/packages/patches/nss-getcwd-nonnull.patch30
-rw-r--r--gnu/packages/patches/perl-cross.patch60
-rw-r--r--gnu/packages/patches/perl-deterministic-ordering.patch29
-rw-r--r--gnu/packages/patches/perl-io-socket-ssl-openssl-1.0.2f-fix.patch33
-rw-r--r--gnu/packages/patches/perl-no-sys-dirs.patch99
-rw-r--r--gnu/packages/patches/python-2.7-no-static-lib.patch70
-rw-r--r--gnu/packages/patches/python-3-fix-tests.patch194
-rw-r--r--gnu/packages/patches/python-3-hurd-configure.patch27
-rw-r--r--gnu/packages/patches/python-3-no-static-lib.patch75
-rw-r--r--gnu/packages/patches/python-3.8-CVE-2021-3177.patch194
-rw-r--r--gnu/packages/patches/python-3.8-fix-tests.patch42
-rw-r--r--gnu/packages/patches/python-3.9-fix-tests.patch370
-rw-r--r--gnu/packages/patches/python-babel-fix-parse-future-test.patch68
-rw-r--r--gnu/packages/patches/python-typing-inspect-fix.patch38
-rw-r--r--gnu/packages/patches/rust-1.19-mrustc.patch28
-rw-r--r--gnu/packages/patches/rust-1.25-accept-more-detailed-gdb-lines.patch111
-rw-r--r--gnu/packages/patches/rust-1.30-gdb-llvm.patch89
-rw-r--r--gnu/packages/patches/rust-1.45-linker-locale.patch14
-rw-r--r--gnu/packages/patches/rust-1.48-linker-locale.patch14
-rw-r--r--gnu/packages/patches/rust-bootstrap-stage0-test.patch55
-rw-r--r--gnu/packages/patches/tcl-fix-cross-compilation.patch39
-rw-r--r--gnu/packages/patches/tcsh-fix-autotest.patch11
-rw-r--r--gnu/packages/patches/texlive-bin-poppler-0.83.patch52
-rw-r--r--gnu/packages/patches/texlive-bin-poppler-0.86.patch17
-rw-r--r--gnu/packages/patches/zstd-CVE-2021-24031_CVE-2021-24032.patch68
-rw-r--r--gnu/packages/patches/zziplib-CVE-2018-16548.patch49
-rw-r--r--gnu/packages/patchutils.scm2
-rw-r--r--gnu/packages/pcre.scm22
-rw-r--r--gnu/packages/pdf.scm7
-rw-r--r--gnu/packages/perl-check.scm4
-rw-r--r--gnu/packages/perl.scm120
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-rw-r--r--gnu/packages/plotutils.scm6
-rw-r--r--gnu/packages/presentation.scm4
-rw-r--r--gnu/packages/pretty-print.scm5
-rw-r--r--gnu/packages/protobuf.scm15
-rw-r--r--gnu/packages/pulseaudio.scm8
-rw-r--r--gnu/packages/pumpio.scm6
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-rw-r--r--guix/build-system/guile.scm170
-rw-r--r--guix/build-system/haskell.scm90
-rw-r--r--guix/build-system/julia.scm61
-rw-r--r--guix/build-system/linux-module.scm172
-rw-r--r--guix/build-system/maven.scm114
-rw-r--r--guix/build-system/meson.scm335
-rw-r--r--guix/build-system/minify.scm60
-rw-r--r--guix/build-system/node.scm65
-rw-r--r--guix/build-system/ocaml.scm84
-rw-r--r--guix/build-system/perl.scm77
-rw-r--r--guix/build-system/python.scm87
-rw-r--r--guix/build-system/qt.scm213
-rw-r--r--guix/build-system/r.scm68
-rw-r--r--guix/build-system/rakudo.scm62
-rw-r--r--guix/build-system/renpy.scm88
-rw-r--r--guix/build-system/ruby.scm72
-rw-r--r--guix/build-system/scons.scm76
-rw-r--r--guix/build-system/texlive.scm103
-rw-r--r--guix/build-system/trivial.scm95
-rw-r--r--guix/build-system/waf.scm88
-rw-r--r--guix/build/copy-build-system.scm11
-rw-r--r--guix/build/emacs-build-system.scm16
-rw-r--r--guix/build/glib-or-gtk-build-system.scm25
-rw-r--r--guix/build/gnu-build-system.scm220
-rw-r--r--guix/build/gremlin.scm121
-rw-r--r--guix/build/lisp-utils.scm2
-rw-r--r--guix/build/maven/pom.scm2
-rw-r--r--guix/build/meson-build-system.scm2
-rw-r--r--guix/build/meson-configuration.scm56
-rw-r--r--guix/build/minify-build-system.scm11
-rw-r--r--guix/build/python-build-system.scm144
-rw-r--r--guix/build/qt-build-system.scm1
-rw-r--r--guix/build/rakudo-build-system.scm12
-rw-r--r--guix/build/rpath.scm59
-rw-r--r--guix/build/ruby-build-system.scm25
-rw-r--r--guix/build/texlive-build-system.scm50
-rw-r--r--guix/build/utils.scm251
-rw-r--r--guix/gexp.scm402
-rw-r--r--guix/grafts.scm12
-rw-r--r--guix/import/cran.scm8
-rw-r--r--guix/import/egg.scm14
-rw-r--r--guix/import/elpa.scm7
-rw-r--r--guix/import/gem.scm8
-rw-r--r--guix/import/hackage.scm11
-rw-r--r--guix/import/opam.scm11
-rw-r--r--guix/import/print.scm57
-rw-r--r--guix/import/pypi.scm15
-rw-r--r--guix/lint.scm36
-rw-r--r--guix/packages.scm862
-rw-r--r--guix/profiles.scm99
-rw-r--r--guix/records.scm65
-rw-r--r--guix/scripts/pack.scm29
-rw-r--r--guix/scripts/style.scm527
-rw-r--r--guix/store/roots.scm2
-rw-r--r--guix/svn-download.scm4
-rw-r--r--guix/tests.scm71
-rw-r--r--guix/utils.scm227
-rw-r--r--m4/guix.m44
-rw-r--r--po/guix/POTFILES.in1
-rw-r--r--tests/build-utils.scm49
-rw-r--r--tests/builders.scm128
-rw-r--r--tests/cran.scm10
-rw-r--r--tests/egg.scm27
-rw-r--r--tests/gem.scm15
-rw-r--r--tests/gexp.scm7
-rw-r--r--tests/gremlin.scm88
-rw-r--r--tests/guix-environment.sh8
-rw-r--r--tests/hackage.scm22
-rw-r--r--tests/lint.scm16
-rw-r--r--tests/opam.scm10
-rw-r--r--tests/pack.scm4
-rw-r--r--tests/packages.scm270
-rw-r--r--tests/print.scm4
-rw-r--r--tests/pypi.scm18
-rw-r--r--tests/records.scm38
-rw-r--r--tests/store.scm3
-rw-r--r--tests/style.scm366
-rw-r--r--tests/utils.scm40
444 files changed, 17384 insertions, 21643 deletions
diff --git a/.dir-locals.el b/.dir-locals.el
index a4fcbfe7ca..919ed1d1c4 100644
--- a/.dir-locals.el
+++ b/.dir-locals.el
@@ -57,6 +57,12 @@
    (eval . (put 'substitute* 'scheme-indent-function 1))
    (eval . (put 'match-record 'scheme-indent-function 2))
 
+   ;; 'modify-inputs' and its keywords.
+   (eval . (put 'modify-inputs 'scheme-indent-function 1))
+   (eval . (put 'replace 'scheme-indent-function 1))
+   (eval . (put 'prepend 'scheme-indent-function 2))
+   (eval . (put 'append 'scheme-indent-function 2))
+
    ;; 'modify-phases' and its keywords.
    (eval . (put 'modify-phases 'scheme-indent-function 1))
    (eval . (put 'replace 'scheme-indent-function 1))
@@ -120,6 +126,7 @@
    (eval . (put 'with-extensions 'scheme-indent-function 1))
    (eval . (put 'with-parameters 'scheme-indent-function 1))
    (eval . (put 'let-system 'scheme-indent-function 1))
+   (eval . (put 'with-build-variables 'scheme-indent-function 2))
 
    (eval . (put 'with-database 'scheme-indent-function 2))
    (eval . (put 'call-with-database 'scheme-indent-function 1))
diff --git a/Makefile.am b/Makefile.am
index d5ec909213..8c06125f93 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -225,7 +225,6 @@ MODULES =					\
   guix/build/union.scm				\
   guix/build/profiles.scm			\
   guix/build/compile.scm			\
-  guix/build/rpath.scm				\
   guix/build/cvs.scm				\
   guix/build/svn.scm				\
   guix/build/syscalls.scm                       \
@@ -236,6 +235,7 @@ MODULES =					\
   guix/build/emacs-utils.scm			\
   guix/build/java-utils.scm			\
   guix/build/lisp-utils.scm			\
+  guix/build/meson-configuration.scm		\
   guix/build/maven/java.scm			\
   guix/build/maven/plugin.scm			\
   guix/build/maven/pom.scm			\
@@ -288,6 +288,7 @@ MODULES =					\
   guix/scripts/refresh.scm			\
   guix/scripts/repl.scm				\
   guix/scripts/describe.scm			\
+  guix/scripts/style.scm			\
   guix/scripts/system.scm			\
   guix/scripts/system/search.scm		\
   guix/scripts/system/reconfigure.scm		\
@@ -390,6 +391,8 @@ AUX_FILES =						\
   gnu/packages/aux-files/linux-libre/4.4-i686.conf	\
   gnu/packages/aux-files/linux-libre/4.4-x86_64.conf	\
   gnu/packages/aux-files/pack-audit.c			\
+  gnu/packages/aux-files/python/sanity-check.py		\
+  gnu/packages/aux-files/python/sitecustomize.py	\
   gnu/packages/aux-files/run-in-namespace.c
 
 # Templates, examples.
@@ -500,6 +503,7 @@ SCM_TESTS =					\
   tests/swh.scm				\
   tests/syscalls.scm				\
   tests/system.scm				\
+  tests/style.scm				\
   tests/texlive.scm				\
   tests/transformations.scm			\
   tests/ui.scm					\
diff --git a/doc/build.scm b/doc/build.scm
index 1d086b83ac..90fbf1f0e2 100644
--- a/doc/build.scm
+++ b/doc/build.scm
@@ -723,7 +723,7 @@ makeinfo OPTIONS."
   ;; accented letters.
   ;;
   ;; (define texlive
-  ;;   (texlive-union (list texlive-tex-texinfo
+  ;;   (texlive-updmap.cfg (list texlive-tex-texinfo
   ;;                        texlive-generic-epsf
   ;;                        texlive-fonts-ec)))
 
diff --git a/doc/guix-cookbook.texi b/doc/guix-cookbook.texi
index 2e627ecc51..cbec643cc6 100644
--- a/doc/guix-cookbook.texi
+++ b/doc/guix-cookbook.texi
@@ -793,10 +793,8 @@ another, more sophisticated package (slightly modified from the source):
                   "17pjvprmdrx4h6bb1hhc98w9qi6ki7yl57f090n9kbhswxqfs7s3"))
                 (patches (search-patches "libgit2-mtime-0.patch"))
                 (modules '((guix build utils)))
-                (snippet '(begin
-                            ;; Remove bundled software.
-                            (delete-file-recursively "deps")
-                            #true))))
+                ;; Remove bundled software.
+                (snippet '(delete-file-recursively "deps"))))
       (build-system cmake-build-system)
       (outputs '("out" "debug"))
       (arguments
@@ -810,23 +808,19 @@ another, more sophisticated package (slightly modified from the source):
                  (("#!/bin/sh") (string-append "#!" (which "sh"))))
                (substitute* "tests/clar/fs.h"
                  (("/bin/cp") (which "cp"))
-                 (("/bin/rm") (which "rm")))
-               #true))
+                 (("/bin/rm") (which "rm")))))
            ;; Run checks more verbosely.
            (replace 'check
              (lambda _ (invoke "./libgit2_clar" "-v" "-Q")))
            (add-after 'unpack 'make-files-writable-for-tests
              (lambda _ (for-each make-file-writable (find-files "." ".*")))))))
       (inputs
-       `(("libssh2" ,libssh2)
-         ("http-parser" ,http-parser)
-         ("python" ,python-wrapper)))
+       (list libssh2 http-parser python-wrapper))
       (native-inputs
-       `(("pkg-config" ,pkg-config)))
+       (list pkg-config))
       (propagated-inputs
        ;; These two libraries are in 'Requires.private' in libgit2.pc.
-       `(("openssl" ,openssl)
-         ("zlib" ,zlib)))
+       (list openssl zlib))
       (home-page "https://libgit2.github.com/")
       (synopsis "Library providing Git core methods")
       (description
@@ -890,22 +884,6 @@ Snippets might need additional Guile modules which can be imported from the
 
 @subsubsection Inputs
 
-First, a syntactic comment: See the quasi-quote / comma syntax?
-
-@lisp
-    (native-inputs
-     `(("pkg-config" ,pkg-config)))
-@end lisp
-
-is equivalent to
-
-@lisp
-    (native-inputs
-     (list (list "pkg-config" pkg-config)))
-@end lisp
-
-You'll mostly see the former because it's shorter.
-
 There are 3 different input types.  In short:
 
 @table @asis
@@ -939,6 +917,24 @@ It also matters when a substitute is available, in which case only the @emph{inp
 and @emph{propagated inputs} will be fetched: the @emph{native inputs} are not required to
 install a package from a substitute.
 
+@quotation Note
+You may see here and there snippets where package inputs are written
+quite differently, like so:
+
+@lisp
+;; The "old style" for inputs.
+(inputs
+ `(("libssh2" ,libssh2)
+   ("http-parser" ,http-parser)
+   ("python" ,python-wrapper)))
+@end lisp
+
+This is the ``old style'', where each input in the list is explicitly
+given a label (a string).  It is still supported but we recommend using
+the style above instead.  @xref{package Reference,,, guix, GNU Guix
+Reference Manual}, for more info.
+@end quotation
+
 @subsubsection Outputs
 
 Just like how a package can have multiple inputs, it can also produce multiple
diff --git a/doc/guix.texi b/doc/guix.texi
index 2298d512a1..2f52a23c18 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -289,6 +289,7 @@ Utilities
 * Invoking guix hash::          Computing the cryptographic hash of a file.
 * Invoking guix import::        Importing package definitions.
 * Invoking guix refresh::       Updating package definitions.
+* Invoking guix style::         Styling package definitions.
 * Invoking guix lint::          Finding errors in package definitions.
 * Invoking guix size::          Profiling disk usage.
 * Invoking guix graph::         Visualizing the graph of packages.
@@ -1892,12 +1893,12 @@ themselves.
 @subsection X11 Fonts
 
 @cindex fonts
-The majority of graphical applications use Fontconfig to locate and
-load fonts and perform X11-client-side rendering.  The @code{fontconfig}
-package in Guix looks for fonts in @file{$HOME/.guix-profile}
-by default.  Thus, to allow graphical applications installed with Guix
-to display fonts, you have to install fonts with Guix as well.
-Essential font packages include @code{gs-fonts}, @code{font-dejavu}, and
+The majority of graphical applications use Fontconfig to locate and load
+fonts and perform X11-client-side rendering.  The @code{fontconfig}
+package in Guix looks for fonts in @file{$HOME/.guix-profile} by
+default.  Thus, to allow graphical applications installed with Guix to
+display fonts, you have to install fonts with Guix as well.  Essential
+font packages include @code{font-ghostscript}, @code{font-dejavu}, and
 @code{font-gnu-freefont}.
 
 @cindex @code{fc-cache}
@@ -2785,8 +2786,8 @@ you should add them to @file{~/.bash_profile} (or equivalent file if you
 do not use Bash) so that environment variables are set next time you
 spawn a shell.  You only need to do this once and other search paths
 environment variables will be taken care of similarly---e.g., if you
-eventually install @code{python} and Python libraries, @code{PYTHONPATH}
-will be defined.
+eventually install @code{python} and Python libraries,
+@env{GUIX_PYTHONPATH} will be defined.
 
 You can go on installing packages at your will.  To list installed
 packages, run:
@@ -3530,24 +3531,26 @@ Show details about @var{package}, taken from the list of available packages, in
 recutils manual}).
 
 @example
-$ guix package --show=python | recsel -p name,version
-name: python
-version: 2.7.6
+$ guix package --show=guile | recsel -p name,version
+name: guile
+version: 3.0.5
 
-name: python
-version: 3.3.5
+name: guile
+version: 3.0.2
+
+name: guile
+version: 2.2.7
+@dots{}
 @end example
 
 You may also specify the full name of a package to only get details about a
 specific version of it (this time using the @command{guix show} alias):
 @example
-$ guix show python@@3.4 | recsel -p name,version
-name: python
-version: 3.4.3
+$ guix show guile@@3.0.5 | recsel -p name,version
+name: guile
+version: 3.0.5
 @end example
 
-
-
 @item --list-installed[=@var{regexp}]
 @itemx -I [@var{regexp}]
 List the currently installed packages in the specified profile, with the
@@ -5627,11 +5630,11 @@ guix environment guile -- make -j4
 
 In other situations, it is more convenient to specify the list of
 packages needed in the environment.  For example, the following command
-runs @command{python} from an environment containing Python@tie{}2.7 and
+runs @command{python} from an environment containing Python@tie{}3 and
 NumPy:
 
 @example
-guix environment --ad-hoc python2-numpy python-2.7 -- python
+guix environment --ad-hoc python-numpy python -- python3
 @end example
 
 Furthermore, one might want the dependencies of a package and also some
@@ -6506,7 +6509,7 @@ package looks like this:
                 "0ssi1wpaf7plaswqqjwigppsg5fyh99vdlb9kzl7c9lng89ndq1i"))))
     (build-system gnu-build-system)
     (arguments '(#:configure-flags '("--enable-silent-rules")))
-    (inputs `(("gawk" ,gawk)))
+    (inputs (list gawk))
     (synopsis "Hello, GNU world: An example GNU package")
     (description "Guess what GNU Hello prints!")
     (home-page "https://www.gnu.org/software/hello/")
@@ -6594,8 +6597,8 @@ Reference Manual}).
 
 @item
 The @code{inputs} field specifies inputs to the build process---i.e.,
-build-time or run-time dependencies of the package.  Here, we define an
-input called @code{"gawk"} whose value is that of the @code{gawk}
+build-time or run-time dependencies of the package.  Here, we add
+an input, a reference to the @code{gawk}
 variable; @code{gawk} is itself bound to a @code{<package>} object.
 
 @cindex backquote (quasiquote)
@@ -6720,20 +6723,42 @@ list, typically containing sequential keyword-value pairs.
 @itemx @code{native-inputs} (default: @code{'()})
 @itemx @code{propagated-inputs} (default: @code{'()})
 @cindex inputs, of packages
-These fields list dependencies of the package.  Each one is a list of
-tuples, where each tuple has a label for the input (a string) as its
+These fields list dependencies of the package.  Each element of these
+lists is either a package, origin, or other ``file-like object''
+(@pxref{G-Expressions}); to specify the output of that file-like object
+that should be used, pass a two-element list where the second element is
+the output (@pxref{Packages with Multiple Outputs}, for more on package
+outputs).  For example, the list below specifies three inputs:
+
+@lisp
+(list libffi libunistring
+      `(,glib "bin"))      ;the "bin" output of GLib
+@end lisp
+
+In the example above, the @code{"out"} output of @code{libffi} and
+@code{libunistring} is used.
+
+@quotation Compatibility Note
+Until version 1.3.0, input lists were a list of tuples,
+where each tuple has a label for the input (a string) as its
 first element, a package, origin, or derivation as its second element,
 and optionally the name of the output thereof that should be used, which
-defaults to @code{"out"} (@pxref{Packages with Multiple Outputs}, for
-more on package outputs).  For example, the list below specifies three
-inputs:
+defaults to @code{"out"}.  For example, the list below is equivalent to
+the one above, but using the @dfn{old input style}:
 
 @lisp
+;; Old input style (deprecated).
 `(("libffi" ,libffi)
   ("libunistring" ,libunistring)
-  ("glib:bin" ,glib "bin"))  ;the "bin" output of Glib
+  ("glib:bin" ,glib "bin"))  ;the "bin" output of GLib
 @end lisp
 
+This style is now deprecated; it is still supported but support will be
+removed in a future version.  It should not be used for new package
+definitions.  @xref{Invoking guix style}, on how to migrate to the new
+style.
+@end quotation
+
 @cindex cross compilation, package dependencies
 The distinction between @code{native-inputs} and @code{inputs} is
 necessary when considering cross-compilation.  When cross-compiling,
@@ -6819,13 +6844,37 @@ cross-compiling:
   ;; When cross-compiled, Guile, for example, depends on
   ;; a native version of itself.  Add it here.
   (native-inputs (if (%current-target-system)
-                     `(("self" ,this-package))
+                     (list this-package)
                      '())))
 @end lisp
 
 It is an error to refer to @code{this-package} outside a package definition.
 @end deffn
 
+The following helper procedures are provided to help deal with package
+inputs.
+
+@deffn {Scheme Procedure} lookup-package-input @var{package} @var{name}
+@deffnx {Scheme Procedure} lookup-package-native-input @var{package} @var{name}
+@deffnx {Scheme Procedure} lookup-package-propagated-input @var{package} @var{name}
+@deffnx {Scheme Procedure} lookup-package-direct-input @var{package} @var{name}
+Look up @var{name} among @var{package}'s inputs (or native, propagated,
+or direct inputs).  Return it if found, @code{#f} otherwise.
+
+@var{name} is the name of a package depended on.  Here's how you might
+use it:
+
+@lisp
+(use-modules (guix packages) (gnu packages base))
+
+(lookup-package-direct-input coreutils "gmp")
+@result{} #<package gmp@@6.2.1 @dots{}>
+@end lisp
+
+In this example we obtain the @code{gmp} package that is among the
+direct inputs of @code{coreutils}.
+@end deffn
+
 Because packages are regular Scheme objects that capture a complete
 dependency graph and associated build procedures, it is often useful to
 write procedures that take a package and return a modified version
@@ -7105,20 +7154,42 @@ optional dependency, you can define a variant that removes that
 dependency like so:
 
 @lisp
-(use-modules (gnu packages gdb)    ;for 'gdb'
-             (srfi srfi-1))        ;for 'alist-delete'
+(use-modules (gnu packages gdb))   ;for 'gdb'
 
 (define gdb-sans-guile
   (package
     (inherit gdb)
-    (inputs (alist-delete "guile"
-                          (package-inputs gdb)))))
+    (inputs (modify-inputs (package-inputs gdb)
+              (delete "guile")))))
 @end lisp
 
-The @code{alist-delete} call above removes the tuple from the
-@code{inputs} field that has @code{"guile"} as its first element
-(@pxref{SRFI-1 Association Lists,,, guile, GNU Guile Reference
-Manual}).
+The @code{modify-inputs} form above removes the @code{"guile"} package
+from the @code{inputs} field of @code{gdb}.  The @code{modify-inputs}
+macro is a helper that can prove useful anytime you want to remove, add,
+or replace package inputs.
+
+@deffn {Scheme Syntax} modify-inputs @var{inputs} @var{clauses}
+Modify the given package inputs, as returned by @code{package-inputs} & co.,
+according to the given clauses.  The example below removes the GMP and ACL
+inputs of Coreutils and adds libcap to the back of the input list:
+
+@lisp
+(modify-inputs (package-inputs coreutils)
+  (delete "gmp" "acl")
+  (append libcap))
+@end lisp
+
+The example below replaces the @code{guile} package from the inputs of
+@code{guile-redis} with @code{guile-2.2}:
+
+@lisp
+(modify-inputs (package-inputs guile-redis)
+  (replace "guile" guile-2.2))
+@end lisp
+
+The last type of clause is @code{prepend}, to add inputs to the front of
+the list.
+@end deffn
 
 In some cases, you may find it useful to write functions
 (``procedures'', in Scheme parlance) that return a package based on some
@@ -7135,8 +7206,7 @@ depends on it:
     (name name)
     (version "3.0")
     ;; several fields omitted
-    (inputs
-     `(("lua" ,lua)))
+    (inputs (list lua))
     (synopsis "Socket library for Lua")))
 
 (define-public lua5.1-socket
@@ -7960,8 +8030,9 @@ packages, which consists in running @code{python setup.py build} and
 then @code{python setup.py install --prefix=/gnu/store/@dots{}}.
 
 For packages that install stand-alone Python programs under @code{bin/},
-it takes care of wrapping these programs so that their @env{PYTHONPATH}
-environment variable points to all the Python libraries they depend on.
+it takes care of wrapping these programs so that their
+@env{GUIX_PYTHONPATH} environment variable points to all the Python
+libraries they depend on.
 
 Which Python package is used to perform the build can be specified with
 the @code{#:python} parameter.  This is a useful way to force a package
@@ -7973,6 +8044,13 @@ By default guix calls @code{setup.py} under control of
 @code{setuptools}, much like @command{pip} does.  Some packages are not
 compatible with setuptools (and pip), thus you can disable this by
 setting the @code{#:use-setuptools?} parameter to @code{#f}.
+
+If a @code{"python"} output is available, the package is installed into it
+instead of the default @code{"out"} output. This is useful for packages that
+include a Python package as only a part of the software, and thus want to
+combine the phases of @code{python-build-system} with another build system.
+Python bindings are a common usecase.
+
 @end defvr
 
 @defvr {Scheme Variable} perl-build-system
@@ -8193,9 +8271,7 @@ implements the build procedure for packages that use
 
 It adds both Meson and @uref{https://ninja-build.org/, Ninja} to the set
 of inputs, and they can be changed with the parameters @code{#:meson}
-and @code{#:ninja} if needed.  The default Meson is
-@code{meson-for-build}, which is special because it doesn't clear the
-@code{RUNPATH} of binaries and libraries when they are installed.
+and @code{#:ninja} if needed.
 
 This build system is an extension of @code{gnu-build-system}, but with the
 following phases changed to some specific for Meson:
@@ -8226,11 +8302,11 @@ Apart from that, the build system also adds the following phases:
 
 @item fix-runpath
 This phase ensures that all binaries can find the libraries they need.
-It searches for required libraries in subdirectories of the package being
-built, and adds those to @code{RUNPATH} where needed.  It also removes
-references to libraries left over from the build phase by
-@code{meson-for-build}, such as test dependencies, that aren't actually
-required for the program to run.
+It searches for required libraries in subdirectories of the package
+being built, and adds those to @code{RUNPATH} where needed.  It also
+removes references to libraries left over from the build phase by
+@code{meson}, such as test dependencies, that aren't actually required
+for the program to run.
 
 @item glib-or-gtk-wrap
 This phase is the phase provided by @code{glib-or-gtk-build-system}, and it
@@ -8609,12 +8685,14 @@ Make @var{file} writable for its owner.
 @end deffn
 
 @deffn {Scheme Procedure} copy-recursively @var{source} @var{destination} @
-  [#:log (current-output-port)] [#:follow-symlinks? #f] [#:keep-mtime? #f]
+  [#:log (current-output-port)] [#:follow-symlinks? #f] @
+  [#:copy-file copy-file] [#:keep-mtime? #f] [#:keep-permissions? #t]
 Copy @var{source} directory to @var{destination}.  Follow symlinks if
-@var{follow-symlinks?}  is true; otherwise, just preserve them.  When
-@var{keep-mtime?} is true, keep the modification time of the files in
-@var{source} on those of @var{destination}.  Write verbose output to the
-@var{log} port.
+@var{follow-symlinks?}  is true; otherwise, just preserve them.  Call
+@var{copy-file} to copy regular files.  When @var{keep-mtime?} is true,
+keep the modification time of the files in @var{source} on those of
+@var{destination}.  When @var{keep-permissions?} is true, preserve file
+permissions.  Write verbose output to the @var{log} port.
 @end deffn
 
 @deffn {Scheme Procedure} delete-file-recursively @var{dir} @
@@ -8698,6 +8776,31 @@ Return the complete file name for @var{program} as found in
 @code{$PATH}, or @code{#f} if @var{program} could not be found.
 @end deffn
 
+@deffn {Scheme Procedure} search-input-file @var{inputs} @var{name}
+@deffnx {Scheme Procedure} search-input-directory @var{inputs} @var{name}
+Return the complete file name for @var{name} as found in @var{inputs};
+@code{search-input-file} searches for a regular file and
+@code{search-input-directory} searches for a directory.  If @var{name}
+could not be found, an exception is raised.
+
+Here, @var{inputs} must be an association list like @code{inputs} and
+@code{native-inputs} as available to build phases (@pxref{Build
+Phases}).
+@end deffn
+
+Here is a (simplified) example of how @code{search-input-file} is used
+in a build phase of the @code{wireguard-tools} package:
+
+@lisp
+(add-after 'install 'wrap-wg-quick
+  (lambda* (#:key inputs outputs #:allow-other-keys)
+    (let ((coreutils (string-append (assoc-ref inputs "coreutils")
+                                    "/bin")))
+      (wrap-program (search-input-file outputs "bin/wg-quick")
+        #:sh (search-input-file inputs "bin/bash")
+        `("PATH" ":" prefix ,(list coreutils))))))
+@end lisp
+
 @subsection Build Phases
 
 @cindex build phases
@@ -10195,6 +10298,7 @@ the Scheme programming interface of Guix in a convenient way.
 * Invoking guix hash::          Computing the cryptographic hash of a file.
 * Invoking guix import::        Importing package definitions.
 * Invoking guix refresh::       Updating package definitions.
+* Invoking guix style::         Styling package definitions.
 * Invoking guix lint::          Finding errors in package definitions.
 * Invoking guix size::          Profiling disk usage.
 * Invoking guix graph::         Visualizing the graph of packages.
@@ -12017,6 +12121,98 @@ token procured from @uref{https://github.com/settings/tokens} or
 otherwise.
 
 
+@node Invoking guix style
+@section Invoking @command{guix style}
+
+The @command{guix style} command helps packagers style their package
+definitions according to the latest fashionable trends.  The command
+currently focuses on one aspect: the style of package inputs.  It may
+eventually be extended to handle other stylistic matters.
+
+The way package inputs are written is going through a transition
+(@pxref{package Reference}, for more on package inputs).  Until version
+1.3.0, package inputs were written using the ``old style'', where each
+input was given an explicit label, most of the time the package name:
+
+@lisp
+(package
+  ;; @dots{}
+  ;; The "old style" (deprecated).
+  (inputs `(("libunistring" ,libunistring)
+            ("libffi" ,libffi))))
+@end lisp
+
+Today, the old style is deprecated and the preferred style looks like
+this:
+
+@lisp
+(package
+  ;; @dots{}
+  ;; The "new style".
+  (inputs (list libunistring libffi)))
+@end lisp
+
+Likewise, uses of @code{alist-delete} and friends to manipulate inputs
+is now deprecated in favor of @code{modify-inputs} (@pxref{Defining
+Package Variants}, for more info on @code{modify-inputs}).
+
+In the vast majority of cases, this is a purely mechanical change on the
+surface syntax that does not even incur a package rebuild.  Running
+@command{guix style} can do that for you, whether you're working on
+packages in Guix proper or in an external channel.
+
+The general syntax is:
+
+@example
+guix style [@var{options}] @var{package}@dots{}
+@end example
+
+This causes @command{guix style} to analyze and rewrite the definition
+of @var{package}@dots{}.  It does so in a conservative way: preserving
+comments and bailing out if it cannot make sense of the code that
+appears in an inputs field.  The available options are listed below.
+
+@table @code
+@item --load-path=@var{directory}
+@itemx -L @var{directory}
+Add @var{directory} to the front of the package module search path
+(@pxref{Package Modules}).
+
+@item --expression=@var{expr}
+@itemx -e @var{expr}
+Style the package @var{expr} evaluates to.
+
+For example, running:
+
+@example
+guix style -e '(@@ (gnu packages gcc) gcc-5)'
+@end example
+
+styles the @code{gcc-5} package definition.
+
+@item --input-simplification=@var{policy}
+Specify the package input simplification policy for cases where an input
+label does not match the corresponding package name.  @var{policy} may
+be one of the following:
+
+@table @code
+@item silent
+Simplify inputs only when the change is ``silent'', meaning that the
+package does not need to be rebuilt (its derivation is unchanged).
+
+@item safe
+Simplify inputs only when that is ``safe'' to do: the package might need
+to be rebuilt, but the change is known to have no observable effect.
+
+@item always
+Simplify inputs even when input labels do not match package names, and
+even if that might have an observable effect.
+@end table
+
+The default is @code{silent}, meaning that input simplifications do not
+trigger any package rebuild.
+@end table
+
 @node Invoking guix lint
 @section Invoking @command{guix lint}
 
@@ -12145,6 +12341,13 @@ declare them as in this example:
 @item formatting
 Warn about obvious source code formatting issues: trailing white space,
 use of tabulations, etc.
+
+@item input-labels
+Report old-style input labels that do not match the name of the
+corresponding package.  This aims to help migrate from the ``old input
+style''.  @xref{package Reference}, for more information on package
+inputs and input styles.  @xref{Invoking guix style}, on how to migrate
+to the new style.
 @end table
 
 The general syntax is:
@@ -18486,6 +18689,12 @@ programs.
 Defaults to @samp{"lp"}.
 @end deftypevr
 
+@deftypevr {@code{files-configuration} parameter} string log-file-group
+Specifies the group name or ID that will be used for log files.
+
+Defaults to @samp{"lpadmin"}.
+@end deftypevr
+
 @deftypevr {@code{files-configuration} parameter} string log-file-perm
 Specifies the permissions for all log files that the scheduler writes.
 
@@ -34898,6 +35107,20 @@ GDB}):
 From there on, GDB will pick up debugging information from the
 @file{.debug} files under @file{~/.guix-profile/lib/debug}.
 
+Below is an alternative GDB script which is useful when working with
+other profiles.  It takes advantage of the optional Guile integration in
+GDB.  This snippet is included by default on Guix System in the
+@file{~/.gdbinit} file.
+
+@example
+guile
+(use-modules (gdb))
+(execute (string-append "set debug-file-directory "
+                        (or (getenv "GDB_DEBUG_FILE_DIRECTORY")
+                            "~/.guix-profile/lib/debug")))
+end
+@end example
+
 In addition, you will most likely want GDB to be able to show the source
 code being debugged.  To do that, you will have to unpack the source
 code of the package of interest (obtained with @code{guix build
diff --git a/etc/news.scm b/etc/news.scm
index 88d23d71ed..b4a08067c5 100644
--- a/etc/news.scm
+++ b/etc/news.scm
@@ -23,6 +23,31 @@
 (channel-news
  (version 0)
 
+ (entry (commit "f23803af2018a148fb088f2516d79c20d6bf95f0")
+        (title
+         (en "Input labels can now be omitted in package definitions"))
+        (body
+         (en "If you have written package definitions before, you may know
+that package inputs required a bit of boilerplate: each input needs to have an
+associated label (a string), which you can refer to in ``build-side code''.
+
+Input labels are now unnecessary, meaning that you can write code like:
+
+@lisp
+(package
+  ;; @dots{}
+  (inputs (list libunistring libffi libgc)))
+@end lisp
+
+Notice that the @code{inputs} field is simplified compared to the ``old
+style''.  When needed, you can now use g-expressions (gexps) to refer to
+another package in build-side code.  Additionally, the new
+@code{modify-inputs} macro facilitates common operations on inputs---deleting,
+replacing, adding inputs.
+
+To ease transition to the ``new style'', a new @command{guix style} command is
+provided.  Run @command{info \"(guix) Invoking guix style\"} for more info.")))
+
  (entry (commit "82daab42811a2e3c7684ebdf12af75ff0fa67b99")
         (title
          (en "New @samp{deb} format for the @command{guix pack} command")
diff --git a/gnu/build/vm.scm b/gnu/build/vm.scm
index bd59916bf3..253d9bcd31 100644
--- a/gnu/build/vm.scm
+++ b/gnu/build/vm.scm
@@ -164,8 +164,8 @@ the #:references-graphs parameter of 'derivation'."
          "-cpu" "max"
          "-m" (number->string memory-size)
          "-nic" "user,model=virtio-net-pci"
-         "-object" "rng-random,filename=/dev/urandom,id=guixsd-vm-rng"
-         "-device" "virtio-rng-pci,rng=guixsd-vm-rng"
+         "-object" "rng-random,filename=/dev/urandom,id=guix-vm-rng"
+         "-device" "virtio-rng-pci,rng=guix-vm-rng"
          "-virtfs"
          (string-append "local,id=store_dev,path="
                         (%store-directory)
diff --git a/gnu/ci.scm b/gnu/ci.scm
index ceb1b94af9..15a4815ff4 100644
--- a/gnu/ci.scm
+++ b/gnu/ci.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017, 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2018, 2019 Clément Lassieur <clement@lassieur.org>
 ;;; Copyright © 2020 Julien Lepiller <julien@lepiller.eu>
@@ -69,7 +69,6 @@
   #:export (derivation->job
             image->job
 
-            %bootstrap-packages
             %core-packages
             %cross-targets
             channel-source->package
@@ -130,7 +129,7 @@ building the derivation."
 (define (package-cross-job store job-name package target system)
   "Return a job called TARGET.JOB-NAME that cross-builds PACKAGE for TARGET on
 SYSTEM."
-  (let ((name (string-append target "." job-name "." system)))
+  (let ((name (string-append target "." job-name)))
     (package-job store name package system
                  #:cross? #t
                  #:target target)))
@@ -139,9 +138,9 @@ SYSTEM."
   ;; Note: Don't put the '-final' package variants because (1) that's
   ;; implicit, and (2) they cannot be cross-built (due to the explicit input
   ;; chain.)
-  (list gcc-7 gcc-8 gcc-9 gcc-10 glibc binutils
+  (list gcc-8 gcc-9 gcc-10 gcc-11 glibc binutils
         gmp mpfr mpc coreutils findutils diffutils patch sed grep
-        gawk gnu-gettext hello guile-2.0 guile-2.2 zlib gzip xz
+        gawk gnu-gettext hello guile-2.2 guile-3.0 zlib gzip xz
         %bootstrap-binaries-tarball
         %binutils-bootstrap-tarball
         (%glibc-bootstrap-tarball)
@@ -149,13 +148,18 @@ SYSTEM."
         %guile-bootstrap-tarball
         %bootstrap-tarballs))
 
-(define %bootstrap-packages
-  ;; Return the list of bootstrap packages from the commencement module.
-  (filter package?
-          (module-map
-           (lambda (sym var)
-             (variable-ref var))
-           (resolve-module '(gnu packages commencement)))))
+(define (commencement-packages system)
+  "Return the list of bootstrap packages from the commencement module for
+SYSTEM."
+  ;; Only include packages supported on SYSTEM.  For example, the Mes
+  ;; bootstrap graph is currently not supported on ARM so it should be
+  ;; excluded.
+  (filter (lambda (obj)
+            (and (package? obj)
+                 (supported-package? obj system)))
+          (module-map (lambda (sym var)
+                        (variable-ref var))
+                      (resolve-module '(gnu packages commencement)))))
 
 (define (packages-to-cross-build target)
   "Return the list of packages to cross-build for TARGET."
@@ -517,7 +521,7 @@ valid."
            (map (lambda (package)
                   (package-job store (job-name package)
                                package system))
-                (append %bootstrap-packages %core-packages))
+                (append (commencement-packages system) %core-packages))
            (cross-jobs store system)))
          ('guix
           ;; Build Guix modules only.
diff --git a/gnu/local.mk b/gnu/local.mk
index c80a9af78c..812c997e04 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -40,6 +40,7 @@
 # Copyright © 2020 Malte Frank Gerdes <mate.f.gerdes@gmail.com>
 # Copyright © 2020 Vinicius Monego <monego@posteo.net>
 # Copyright © 2021 Björn Höfling <bjoern.hoefling@bjoernhoefling.de>
+# Copyright © 2021 Greg Hogan <code@greghogan.com>
 # Copyright © 2021 Philip McGrath <philip@philipmcgrath.com>
 # Copyright © 2021 Arun Isaac <arunisaac@systemreboot.net>
 # Copyright © 2021 Sharlatan Hellseher <sharlatanus@gmail.com>
@@ -523,6 +524,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/slang.scm			\
   %D%/packages/smalltalk.scm			\
   %D%/packages/sml.scm				\
+  %D%/packages/solidity.scm			\
   %D%/packages/speech.scm			\
   %D%/packages/sphinx.scm			\
   %D%/packages/spice.scm			\
@@ -825,6 +827,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/ath9k-htc-firmware-gcc.patch		\
   %D%/packages/patches/ath9k-htc-firmware-gcc-compat.patch	\
   %D%/packages/patches/ath9k-htc-firmware-objcopy.patch		\
+  %D%/packages/patches/atlas-gfortran-compat.patch		\
   %D%/packages/patches/audacity-build-with-system-portaudio.patch \
   %D%/packages/patches/audacity-add-include.patch 		\
   %D%/packages/patches/audiofile-fix-datatypes-in-tests.patch	\
@@ -857,6 +860,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/bastet-change-source-of-unordered_set.patch	\
   %D%/packages/patches/bazaar-CVE-2017-14176.patch		\
   %D%/packages/patches/bc-fix-cross-compilation.patch		\
+  %D%/packages/patches/bdb-5.3-atomics-on-gcc-9.patch		\
   %D%/packages/patches/bear-disable-preinstall-tests.patch	\
   %D%/packages/patches/brightnessctl-elogind-support.patch	\
   %D%/packages/patches/bsd-games-2.17-64bit.patch		\
@@ -874,8 +878,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/beets-werkzeug-compat.patch		\
   %D%/packages/patches/behave-skip-a-couple-of-tests.patch	\
   %D%/packages/patches/beignet-correct-file-names.patch		\
-  %D%/packages/patches/biber-fix-encoding-write.patch		\
-  %D%/packages/patches/biber-sortinithash.patch			\
   %D%/packages/patches/bidiv-update-fribidi.patch		\
   %D%/packages/patches/binutils-boot-2.20.1a.patch		\
   %D%/packages/patches/binutils-loongson-workaround.patch	\
@@ -927,15 +929,14 @@ dist_patch_DATA =						\
   %D%/packages/patches/collectd-5.11.0-noinstallvar.patch		\
   %D%/packages/patches/combinatorial-blas-awpm.patch		\
   %D%/packages/patches/combinatorial-blas-io-fix.patch		\
+  %D%/packages/patches/coreutils-gnulib-tests.patch		\
   %D%/packages/patches/coreutils-ls.patch			\
   %D%/packages/patches/cpufrequtils-fix-aclocal.patch		\
   %D%/packages/patches/crawl-upgrade-saves.patch		\
   %D%/packages/patches/crda-optional-gcrypt.patch		\
   %D%/packages/patches/clucene-contribs-lib.patch               \
   %D%/packages/patches/cube-nocheck.patch			\
-  %D%/packages/patches/cups-CVE-2020-10001.patch		\
   %D%/packages/patches/curl-use-ssl-cert-env.patch		\
-  %D%/packages/patches/curl-7.76-use-ssl-cert-env.patch	\
   %D%/packages/patches/curl-7.77-tls-priority-string.patch	\
   %D%/packages/patches/cursynth-wave-rand.patch			\
   %D%/packages/patches/cvs-CVE-2017-12836.patch		\
@@ -946,7 +947,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/datefudge-gettimeofday.patch		\
   %D%/packages/patches/dbacl-include-locale.h.patch		\
   %D%/packages/patches/dbus-helper-search-path.patch		\
-  %D%/packages/patches/dbus-CVE-2020-12049.patch		\
   %D%/packages/patches/dbus-c++-gcc-compat.patch		\
   %D%/packages/patches/dbus-c++-threading-mutex.patch		\
   %D%/packages/patches/dbxfs-remove-sentry-sdk.patch		\
@@ -960,12 +960,11 @@ dist_patch_DATA =						\
   %D%/packages/patches/disarchive-cross-compilation.patch	\
   %D%/packages/patches/dkimproxy-add-ipv6-support.patch		\
   %D%/packages/patches/docbook-xsl-nonrecursive-string-subst.patch	\
+  %D%/packages/patches/docbook-xsl-support-old-url.patch	\
   %D%/packages/patches/doc++-include-directives.patch		\
   %D%/packages/patches/doc++-segfault-fix.patch			\
   %D%/packages/patches/docker-fix-tests.patch			\
   %D%/packages/patches/dovecot-trees-support-dovecot-2.3.patch	\
-  %D%/packages/patches/doxygen-test.patch			\
-  %D%/packages/patches/doxygen-1.8.17-runtests.patch		\
   %D%/packages/patches/dstat-fix-crash-when-specifying-delay.patch	\
   %D%/packages/patches/dstat-skip-devices-without-io.patch	\
   %D%/packages/patches/dune-istl-2.7-fix-non-mpi-tests.patch	\
@@ -1021,15 +1020,15 @@ dist_patch_DATA =						\
   %D%/packages/patches/fifo-map-fix-flags-for-gcc.patch		\
   %D%/packages/patches/fifo-map-remove-catch.hpp.patch		\
   %D%/packages/patches/findutils-localstatedir.patch		\
-  %D%/packages/patches/findutils-test-rwlock-threads.patch	\
   %D%/packages/patches/flann-cmake-3.11.patch			\
+  %D%/packages/patches/fontconfig-cache-ignore-mtime.patch	\
   %D%/packages/patches/foobillard++-pkg-config.patch		\
   %D%/packages/patches/foomatic-filters-CVE-2015-8327.patch	\
   %D%/packages/patches/foomatic-filters-CVE-2015-8560.patch	\
-  %D%/packages/patches/fontconfig-hurd-path-max.patch		\
   %D%/packages/patches/fpc-reproducibility.patch		\
   %D%/packages/patches/fplll-std-fenv.patch     		\
   %D%/packages/patches/freedink-engine-fix-sdl-hints.patch	\
+  %D%/packages/patches/freeglut-gcc-compat.patch		\
   %D%/packages/patches/freeimage-unbundle.patch		\
   %D%/packages/patches/fuse-overlapping-headers.patch				\
   %D%/packages/patches/gajim-honour-GAJIM_PLUGIN_PATH.patch	\
@@ -1038,7 +1037,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/ganeti-drbd-compat.patch			\
   %D%/packages/patches/ganeti-haskell-pythondir.patch		\
   %D%/packages/patches/ganeti-os-disk-size.patch		\
-  %D%/packages/patches/ganeti-preserve-PYTHONPATH.patch		\
   %D%/packages/patches/ganeti-shepherd-master-failover.patch	\
   %D%/packages/patches/ganeti-shepherd-support.patch		\
   %D%/packages/patches/gash-utils-ls-test.patch			\
@@ -1083,7 +1081,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/gdb-hurd.patch				\
   %D%/packages/patches/gd-fix-tests-on-i686.patch		\
   %D%/packages/patches/gd-brect-bounds.patch			\
-  %D%/packages/patches/gdk-pixbuf-CVE-2020-29385.patch		\
+  %D%/packages/patches/gd-Revert-fix-303-gdlib.pc-use-Requires-instead-of-Libs.patch	\
   %D%/packages/patches/gdm-default-session.patch		\
   %D%/packages/patches/geary-CVE-2020-24661.patch		\
   %D%/packages/patches/genimage-signedness.patch		\
@@ -1097,34 +1095,12 @@ dist_patch_DATA =						\
   %D%/packages/patches/ghc-monad-par-fix-tests.patch		\
   %D%/packages/patches/ghc-pandoc-fix-html-tests.patch		\
   %D%/packages/patches/ghc-pandoc-fix-latex-test.patch		\
-  %D%/packages/patches/ghostscript-CVE-2020-15900.patch		\
-  %D%/packages/patches/ghostscript-freetype-compat.patch	\
   %D%/packages/patches/ghostscript-no-header-id.patch		\
   %D%/packages/patches/ghostscript-no-header-uuid.patch		\
   %D%/packages/patches/ghostscript-no-header-creationdate.patch \
   %D%/packages/patches/giara-fix-login.patch                      \
   %D%/packages/patches/glib-appinfo-watch.patch			\
-  %D%/packages/patches/glib-tests-timer.patch			\
-  %D%/packages/patches/glib-CVE-2021-27218.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-01.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-02.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-03.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-04.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-05.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-06.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-07.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-08.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-09.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-10.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-11.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-12.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-13.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-14.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-15.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-16.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-17.patch		\
-  %D%/packages/patches/glib-CVE-2021-27219-18.patch		\
-  %D%/packages/patches/glib-CVE-2021-28153.patch		\
+  %D%/packages/patches/glib-skip-failing-test.patch		\
   %D%/packages/patches/glibc-CVE-2018-11236.patch		\
   %D%/packages/patches/glibc-CVE-2018-11237.patch		\
   %D%/packages/patches/glibc-CVE-2019-7309.patch		\
@@ -1136,8 +1112,12 @@ dist_patch_DATA =						\
   %D%/packages/patches/glibc-bootstrap-system-2.2.5.patch 	\
   %D%/packages/patches/glibc-bootstrap-system-2.16.0.patch 	\
   %D%/packages/patches/glibc-bootstrap-system.patch		\
+  %D%/packages/patches/glibc-cross-objcopy.patch		\
+  %D%/packages/patches/glibc-cross-objdump.patch		\
+  %D%/packages/patches/glibc-dl-cache.patch			\
   %D%/packages/patches/glibc-hidden-visibility-ldconfig.patch	\
   %D%/packages/patches/glibc-hurd-clock_gettime_monotonic.patch	\
+  %D%/packages/patches/glibc-2.31-hurd-clock_gettime_monotonic.patch	\
   %D%/packages/patches/glibc-hurd-clock_t_centiseconds.patch	\
   %D%/packages/patches/glibc-hurd-gettyent.patch		\
   %D%/packages/patches/glibc-hurd-mach-print.patch		\
@@ -1149,11 +1129,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/glibc-locales-2.28.patch			\
   %D%/packages/patches/glibc-reinstate-prlimit64-fallback.patch	\
   %D%/packages/patches/glibc-versioned-locpath.patch		\
-  %D%/packages/patches/glibc-2.27-git-fixes.patch		\
-  %D%/packages/patches/glibc-2.28-git-fixes.patch		\
   %D%/packages/patches/glibc-2.29-git-updates.patch     	\
-  %D%/packages/patches/glibc-2.27-supported-locales.patch     	\
-  %D%/packages/patches/glibc-2.28-supported-locales.patch     	\
   %D%/packages/patches/glibc-2.29-supported-locales.patch     	\
   %D%/packages/patches/glibc-supported-locales.patch     	\
   %D%/packages/patches/gmp-arm-asm-nothumb.patch		\
@@ -1168,8 +1144,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/gnupg-default-pinentry.patch		\
   %D%/packages/patches/gnutls-skip-trust-store-test.patch	\
   %D%/packages/patches/gnutls-cross.patch			\
-  %D%/packages/patches/gnutls-CVE-2021-20231.patch		\
-  %D%/packages/patches/gnutls-CVE-2021-20232.patch		\
   %D%/packages/patches/gobject-introspection-absolute-shlib-path.patch \
   %D%/packages/patches/gobject-introspection-cc.patch		\
   %D%/packages/patches/gobject-introspection-girepository.patch	\
@@ -1179,7 +1153,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/gpodder-disable-updater.patch		\
   %D%/packages/patches/gpsbabel-fix-i686-test.patch		\
   %D%/packages/patches/grantlee-merge-theme-dirs.patch		\
-  %D%/packages/patches/graphviz-CVE-2020-18032.patch		\
   %D%/packages/patches/grep-timing-sensitive-test.patch		\
   %D%/packages/patches/grocsvs-dont-use-admiral.patch		\
   %D%/packages/patches/gromacs-tinyxml2.patch			\
@@ -1208,6 +1181,8 @@ dist_patch_DATA =						\
   %D%/packages/patches/guile-present-coding.patch		\
   %D%/packages/patches/guile-rsvg-pkgconfig.patch		\
   %D%/packages/patches/guile-emacs-fix-configure.patch		\
+  %D%/packages/patches/guile-ssh-fix-test-suite.patch		\
+  %D%/packages/patches/guile-ssh-read-error.patch		\
   %D%/packages/patches/gtk2-respect-GUIX_GTK2_PATH.patch	\
   %D%/packages/patches/gtk2-respect-GUIX_GTK2_IM_MODULE_FILE.patch \
   %D%/packages/patches/gtk2-theme-paths.patch			\
@@ -1242,8 +1217,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/icecat-use-system-graphite2+harfbuzz.patch	\
   %D%/packages/patches/icecat-use-system-media-libs.patch	\
   %D%/packages/patches/icedtea-6-extend-hotspot-aarch64-support.patch	\
-  %D%/packages/patches/icedtea-7-hotspot-aarch64-use-c++98.patch	\
-  %D%/packages/patches/icu4c-CVE-2020-10531.patch  		\
   %D%/packages/patches/id3lib-CVE-2007-4460.patch			\
   %D%/packages/patches/id3lib-UTF16-writing-bug.patch			\
   %D%/packages/patches/idris-disable-test.patch			\
@@ -1252,7 +1225,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/imagemagick-ReadDCMImage-fix.patch	\
   %D%/packages/patches/imagemagick-ReadDCMPixels-fix.patch	\
   %D%/packages/patches/imagemagick-WriteTHUMBNAILImage-fix.patch	\
-  %D%/packages/patches/inetutils-hurd.patch			\
   %D%/packages/patches/inkscape-poppler-0.76.patch		\
   %D%/packages/patches/inkscape-1.1-fix-build-witch-gcc7.5.patch	\
   %D%/packages/patches/intel-xed-fix-nondeterminism.patch	\
@@ -1287,7 +1259,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/jfsutils-add-sysmacros.patch		\
   %D%/packages/patches/jfsutils-gcc-compat.patch		\
   %D%/packages/patches/jfsutils-include-systypes.patch		\
-  %D%/packages/patches/jsoncpp-fix-inverted-case.patch		\
   %D%/packages/patches/julia-SOURCE_DATE_EPOCH-mtime.patch	\
   %D%/packages/patches/julia-tracker-16-compat.patch		\
   %D%/packages/patches/kdbusaddons-kinit-file-name.patch	\
@@ -1326,7 +1297,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/lcalc-default-parameters-2.patch		\
   %D%/packages/patches/lcalc-lcommon-h.patch    		\
   %D%/packages/patches/lcalc-using-namespace-std.patch 		\
-  %D%/packages/patches/lcms-CVE-2018-16435.patch		\
   %D%/packages/patches/ldc-bootstrap-disable-tests.patch	\
   %D%/packages/patches/ldc-disable-phobos-tests.patch		\
   %D%/packages/patches/ldns-drill-examples.patch		\
@@ -1378,7 +1348,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/libtgvoip-disable-webrtc.patch 		\
   %D%/packages/patches/libtheora-config-guess.patch		\
   %D%/packages/patches/libtirpc-hurd.patch			\
-  %D%/packages/patches/libtirpc-hurd-client.patch		\
   %D%/packages/patches/libtommath-fix-linkage.patch		\
   %D%/packages/patches/libtool-skip-tests2.patch		\
   %D%/packages/patches/libusb-0.1-disable-tests.patch		\
@@ -1387,6 +1356,9 @@ dist_patch_DATA =						\
   %D%/packages/patches/libutils-remove-damaging-includes.patch	\
   %D%/packages/patches/libvdpau-va-gl-unbundle.patch		\
   %D%/packages/patches/libvpx-CVE-2016-2818.patch		\
+  %D%/packages/patches/libxml2-parent-pointers.patch		\
+  %D%/packages/patches/libxml2-terminating-newline.patch	\
+  %D%/packages/patches/libxml2-xpath-recursion-limit.patch	\
   %D%/packages/patches/libxml2-xpath0-Add-option-xpath0.patch	\
   %D%/packages/patches/libxslt-generated-ids.patch		\
   %D%/packages/patches/libxt-guix-search-paths.patch		\
@@ -1423,6 +1395,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/make-impure-dirs.patch			\
   %D%/packages/patches/marble-qt-add-qt-headers.patch		\
   %D%/packages/patches/mariadb-CVE-2021-27928.patch		\
+  %D%/packages/patches/mariadb-cmake-compat.patch		\
   %D%/packages/patches/mars-install.patch			\
   %D%/packages/patches/mars-sfml-2.3.patch			\
   %D%/packages/patches/maxima-defsystem-mkdir.patch		\
@@ -1437,7 +1410,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/mercurial-hg-extension-path.patch       \
   %D%/packages/patches/mesa-skip-tests.patch			\
   %D%/packages/patches/mescc-tools-boot.patch			\
-  %D%/packages/patches/meson-for-build-rpath.patch		\
   %D%/packages/patches/metabat-fix-compilation.patch		\
   %D%/packages/patches/mhash-keygen-test-segfault.patch		\
   %D%/packages/patches/mingw-w64-6.0.0-gcc.patch		\
@@ -1446,7 +1418,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/minisat-friend-declaration.patch		\
   %D%/packages/patches/minisat-install.patch			\
   %D%/packages/patches/mit-krb5-hurd.patch			\
-  %D%/packages/patches/mit-krb5-qualify-short-hostnames.patch	\
   %D%/packages/patches/mpc123-initialize-ao.patch		\
   %D%/packages/patches/mpg321-CVE-2019-14247.patch		\
   %D%/packages/patches/module-init-tools-moduledir.patch	\
@@ -1489,6 +1460,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/nginx-socket-cloexec.patch		\
   %D%/packages/patches/nsis-env-passthru.patch			\
   %D%/packages/patches/nsis-source-date-epoch.patch		\
+  %D%/packages/patches/nss-getcwd-nonnull.patch			\
   %D%/packages/patches/nss-increase-test-timeout.patch		\
   %D%/packages/patches/nss-3.56-pkgconfig.patch			\
   %D%/packages/patches/ntfs-3g-CVE-2019-9755.patch		\
@@ -1550,11 +1522,8 @@ dist_patch_DATA =						\
   %D%/packages/patches/patchutils-test-perms.patch		\
   %D%/packages/patches/patch-hurd-path-max.patch		\
   %D%/packages/patches/perl-autosplit-default-time.patch	\
-  %D%/packages/patches/perl-cross.patch				\
-  %D%/packages/patches/perl-deterministic-ordering.patch	\
   %D%/packages/patches/perl-finance-quote-unuse-mozilla-ca.patch \
   %D%/packages/patches/perl-image-exiftool-CVE-2021-22204.patch	\
-  %D%/packages/patches/perl-io-socket-ssl-openssl-1.0.2f-fix.patch \
   %D%/packages/patches/perl-net-amazon-s3-moose-warning.patch	\
   %D%/packages/patches/perl-net-dns-resolver-programmable-fix.patch	\
   %D%/packages/patches/perl-no-sys-dirs.patch			\
@@ -1602,13 +1571,13 @@ dist_patch_DATA =						\
   %D%/packages/patches/python-2.7-site-prefixes.patch		\
   %D%/packages/patches/python-2.7-source-date-epoch.patch	\
   %D%/packages/patches/python-2.7-CVE-2021-3177.patch		\
+  %D%/packages/patches/python-2.7-no-static-lib.patch		\
   %D%/packages/patches/python-3-arm-alignment.patch		\
   %D%/packages/patches/python-3-deterministic-build-info.patch	\
   %D%/packages/patches/python-3-search-paths.patch		\
   %D%/packages/patches/python-3-fix-tests.patch			\
-  %D%/packages/patches/python-3.8-fix-tests.patch		\
-  %D%/packages/patches/python-3.8-CVE-2021-3177.patch		\
-  %D%/packages/patches/python-3.9-fix-tests.patch		\
+  %D%/packages/patches/python-3-hurd-configure.patch		\
+  %D%/packages/patches/python-3-no-static-lib.patch		\
   %D%/packages/patches/python-CVE-2018-14647.patch		\
   %D%/packages/patches/python-CVE-2020-26116.patch		\
   %D%/packages/patches/python-aionotify-0.2.0-py3.8.patch	\
@@ -1628,6 +1597,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/python-memcached-syntax-warnings.patch	\
   %D%/packages/patches/python-mox3-python3.6-compat.patch	\
   %D%/packages/patches/python-testtools.patch			\
+  %D%/packages/patches/python-typing-inspect-fix.patch		\
   %D%/packages/patches/python-onnx-use-system-googletest.patch	\
   %D%/packages/patches/python-packaging-test-arch.patch		\
   %D%/packages/patches/python2-parameterized-docstring-test.patch	\
@@ -1685,11 +1655,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/rnp-disable-ruby-rnp-tests.patch		\
   %D%/packages/patches/rnp-unbundle-googletest.patch		\
   %D%/packages/patches/ruby-sanitize-system-libxml.patch	\
-  %D%/packages/patches/rust-1.19-mrustc.patch			\
-  %D%/packages/patches/rust-1.25-accept-more-detailed-gdb-lines.patch \
-  %D%/packages/patches/rust-1.45-linker-locale.patch		\
-  %D%/packages/patches/rust-1.48-linker-locale.patch		\
-  %D%/packages/patches/rust-bootstrap-stage0-test.patch		\
   %D%/packages/patches/rust-coresimd-doctest.patch		\
   %D%/packages/patches/rust-ndarray-remove-blas-src-dep.patch	\
   %D%/packages/patches/rust-ndarray-0.13-remove-blas-src.patch	\
@@ -1745,12 +1710,9 @@ dist_patch_DATA =						\
   %D%/packages/patches/tar-skip-unreliable-tests.patch		\
   %D%/packages/patches/tcc-boot-0.9.27.patch			\
   %D%/packages/patches/tclxml-3.2-install.patch			\
-  %D%/packages/patches/tcl-fix-cross-compilation.patch		\
   %D%/packages/patches/tcsh-fix-autotest.patch			\
   %D%/packages/patches/teensy-loader-cli-help.patch		\
   %D%/packages/patches/texinfo-5-perl-compat.patch		\
-  %D%/packages/patches/texlive-bin-poppler-0.83.patch		\
-  %D%/packages/patches/texlive-bin-poppler-0.86.patch		\
   %D%/packages/patches/telegram-purple-adjust-test.patch	\
   %D%/packages/patches/telepathy-glib-channel-memory-leak.patch	\
   %D%/packages/patches/texi2html-document-encoding.patch	\
@@ -1869,9 +1831,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/ytfzf-programs.patch        \
   %D%/packages/patches/ytfzf-updates.patch        \
   %D%/packages/patches/ytnef-CVE-2021-3403.patch	\
-  %D%/packages/patches/ytnef-CVE-2021-3404.patch	\
-  %D%/packages/patches/zstd-CVE-2021-24031_CVE-2021-24032.patch	\
-  %D%/packages/patches/zziplib-CVE-2018-16548.patch
+  %D%/packages/patches/ytnef-CVE-2021-3404.patch
 
 MISC_DISTRO_FILES =				\
   %D%/packages/ld-wrapper.in
diff --git a/gnu/packages/acl.scm b/gnu/packages/acl.scm
index abeafeef88..c2de62657f 100644
--- a/gnu/packages/acl.scm
+++ b/gnu/packages/acl.scm
@@ -40,7 +40,7 @@
 (define-public acl
   (package
     (name "acl")
-    (version "2.2.53")
+    (version "2.3.1")
     (source
      (origin
       (method url-fetch)
@@ -48,7 +48,7 @@
                           version ".tar.gz"))
       (sha256
        (base32
-        "1ir6my3w74s6nfbgbqgzj6w570sn0qjf3524zx8xh67lqrjrigh6"))))
+        "1bqi7hj0xkpivwg7lx5cv3yvs9ks1i6azvpgbvfpzcq1i736233n"))))
     (build-system gnu-build-system)
     (arguments
      `(#:modules ((ice-9 ftw)
diff --git a/gnu/packages/ada.scm b/gnu/packages/ada.scm
index 240e13f3ef..8f8b68d80d 100644
--- a/gnu/packages/ada.scm
+++ b/gnu/packages/ada.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2018 Danny Milosavljevic <dannym@scratchpost.org>
 ;;; Copyright © 2020 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -48,17 +49,20 @@
        (file-name (git-file-name name version))))
     (build-system gnu-build-system)
     (supported-systems (list "i686-linux" "x86_64-linux"
-                             "armhf-linux" "aarch64-linux"))
+                             "armhf-linux" "aarch64-linux"
+                             "powerpc-linux"))
     (outputs (list "out" "debug"))
     (arguments
      `(#:system
        ,@(match (%current-system)
            ;; This package predates 64-bit PCs: a ‘64-bit’ adaexec segfaults.
            ;; Force a 32-bit build targeting a similar architecture.
-           ((or "armhf-linux" "aarch64-linux")
+           ("aarch64-linux"
             `("armhf-linux"))
+           ("x86_64-linux"
+            `("i686-linux"))
            (_
-            `("i686-linux")))
+            (list (%current-system))))
        #:make-flags
        (let ((out (assoc-ref %outputs "out")))
          (list (string-append
diff --git a/gnu/packages/admin.scm b/gnu/packages/admin.scm
index ecea149f0e..f6b831feff 100644
--- a/gnu/packages/admin.scm
+++ b/gnu/packages/admin.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
 ;;; Copyright © 2014, 2015, 2016, 2018, 2019, 2020 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2020, 2021 Eric Bavier <bavier@posteo.net>
@@ -35,6 +35,7 @@
 ;;; Copyright © 2020, 2021 Michael Rohleder <mike@rohleder.de>
 ;;; Copyright © 2020 Vincent Legoll <vincent.legoll@gmail.com>
 ;;; Copyright © 2020 Morgan Smith <Morgan.J.Smith@outlook.com>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2021 Zheng Junjie <873216071@qq.com>
 ;;; Copyright © 2021 Stefan Reichör <stefan@xsteve.at>
 ;;; Copyright © 2021 qblade <qblade@protonmail.com>
@@ -271,7 +272,14 @@ and provides a \"top-like\" mode (monitoring).")
                                   version ".tar.gz"))
               (sha256
                (base32
-                "0x9zr0x3xvk4qkb6jnda451d5iyrl06cz1bjzjsm0lxvjj3fabyk"))))
+                "0x9zr0x3xvk4qkb6jnda451d5iyrl06cz1bjzjsm0lxvjj3fabyk"))
+              (modules '((guix build utils)))
+              (snippet
+               '(begin
+                  ;; Build with -O1 to work around <https://bugs.gnu.org/48368>.
+                  (substitute* "Makefile.in"
+                    (("compile --target")
+                     "compile -O1 --target"))))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags '("--localstatedir=/var")
@@ -647,7 +655,8 @@ console.")
      `(("ncurses" ,ncurses)))
     (native-inputs
      `(("autoconf" ,autoconf)
-       ("automake" ,automake)))
+       ("automake" ,automake)
+       ("python" ,python-minimal-wrapper)))     ; for scripts/MakeHeader.py
     (home-page "https://htop.dev")
     (synopsis "Interactive process viewer")
     (description
@@ -748,15 +757,14 @@ re-executing them as necessary.")
 (define-public inetutils
   (package
     (name "inetutils")
-    (version "1.9.4")
+    (version "2.0")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnu/inetutils/inetutils-"
                                  version ".tar.gz"))
-             (patches (search-patches "inetutils-hurd.patch"))
              (sha256
               (base32
-               "05n65k4ixl85dc6rxc51b1b732gnmm8xnqi424dy9f1nz7ppb3xy"))))
+               "0j1nb69bhg29cm4xkqqjh2ln1zqcj2lnpm92v638lpwrs11dypxl"))))
     (build-system gnu-build-system)
     (arguments
      `(#:configure-flags '("--localstatedir=/var"
@@ -777,10 +785,17 @@ re-executing them as necessary.")
                                    "--disable-uucpd"
                                    "--disable-whois")
                                  '()))
+       ;; Make sure that canonical "coreutils" package is not referred.
+       #:make-flags
+       (list (string-append "CPPFLAGS=-DPATHDEF_CP=\\\""
+                            (assoc-ref %build-inputs "coreutils*")
+                            "/bin/cp\\\""))
        ;; On some systems, 'libls.sh' may fail with an error such as:
        ;; "Failed to tell switch -a apart from -A".
        #:parallel-tests? #f))
-    (inputs `(("ncurses" ,ncurses)
+    (inputs `(("coreutils*" ,coreutils)
+              ("shadow" ,shadow)    ;for login (used in telnetd and rlogind)
+              ("ncurses" ,ncurses)
               ("readline" ,readline)))        ;for 'ftp'
     (native-inputs (if (member (%current-system)
                                (package-supported-systems net-tools))
@@ -922,6 +937,11 @@ to allow automatic login and starting any app.")
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
+       ;; This package consists solely of architecture-independent
+       ;; tables. Cross-compilation is pointless! Make sure we'll
+       ;; always get the same derivation.
+       #:target #f
+       #:allowed-references ()
        #:builder (begin
                    (use-modules (guix build utils)
                                 (srfi srfi-26))
@@ -1239,8 +1259,7 @@ connection alive.")
                       (sed       (assoc-ref inputs "sed*")))
                  (substitute* "client/scripts/linux"
                    (("/sbin/ip")
-                    (string-append (assoc-ref inputs "iproute")
-                                   "/sbin/ip")))
+                    (search-input-file inputs "/sbin/ip")))
 
                  (mkdir-p libexec)
                  (copy-file "client/scripts/linux"
@@ -1573,8 +1592,7 @@ at once based on a Perl regular expression.")
                     (lambda* (#:key inputs #:allow-other-keys)
                       (substitute* "rc/rc"
                         (("/usr/sbin/sendmail")
-                         (string-append (assoc-ref inputs "mailutils")
-                                        "/bin/mail")))
+                         (search-input-file inputs "/bin/mail")))
                       #t))
                   (add-after 'unpack 'fix-configure
                     (lambda* (#:key inputs native-inputs #:allow-other-keys)
@@ -1703,10 +1721,7 @@ system administrator.")
        ;; the chroot's /etc/passwd doesn't have it.  Turn off the tests.
        #:tests? #f))
     (native-inputs
-     ;; XXX TODO: Remove on next rebuild cycle.
-     (if (hurd-target?)
-         '()
-         `(("groff" ,groff))))
+     `(("groff" ,groff)))
     (inputs
      `(("coreutils" ,coreutils)
        ,@(if (hurd-target?)
@@ -2947,7 +2962,7 @@ done with the @code{auditctl} utility.")
                  "install-nping")
                (make ndiff "install-ndiff")
                (wrap-program (string-append ndiff "/bin/ndiff")
-                 `("PYTHONPATH" prefix
+                 `("GUIX_PYTHONPATH" prefix
                    (,(python-path ndiff)))))
              #t))
          ;; These are the tests that do not require network access.
@@ -3003,7 +3018,7 @@ results (ndiff), and a packet generation and response analysis tool (nping).")
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out")))
                (wrap-program (string-append out "/bin/dstat")
-                 `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH"))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH"))))
                #t))))))
     (inputs
      `(("python" ,python-wrapper)
@@ -4103,8 +4118,7 @@ cache of unix and unix-like systems.")
        (modify-phases %standard-phases
          (add-before 'build 'setenv-PATH
            (lambda _
-             (setenv "PYTHONPATH" (string-append "lib:" (getenv "PYTHONPATH")))
-             #t)))))
+             (setenv "PYTHONPATH" "lib"))))))
     (propagated-inputs
      `(("python-pygobject" ,python-pygobject)
        ("python-pyudev" ,python-pyudev)
diff --git a/gnu/packages/adns.scm b/gnu/packages/adns.scm
index b36ec18462..1b71d0107c 100644
--- a/gnu/packages/adns.scm
+++ b/gnu/packages/adns.scm
@@ -2,7 +2,7 @@
 ;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015, 2016, 2018, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
-;;; Copyright © 2019 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2019, 2021 Marius Bakke <marius@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -65,7 +65,7 @@ scripts.")
 (define-public c-ares
   (package
     (name "c-ares")
-    (version "1.16.0")
+    (version "1.17.1")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -73,9 +73,15 @@ scripts.")
                     ".tar.gz"))
               (sha256
                (base32
-                "129sm0wzij0mp8vdv68v18hnykcjb6ivi66wnqnnw598q7bql1fy"))))
-    (replacement c-ares/fixed)
+                "0h7wjfnk2092glqcp9mqaax7xx0s13m501z1gi0gsjl2vvvd0gfp"))))
     (build-system gnu-build-system)
+    (arguments
+     '(#:phases
+       (modify-phases %standard-phases
+         (add-before 'check 'filter-live-tests
+           (lambda _
+             ;; Filter tests that require internet access.
+             (setenv "GTEST_FILTER" "-*.Live*:*.FamilyV4*"))))))
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (home-page "https://c-ares.haxx.se/")
@@ -88,23 +94,6 @@ The primary examples of such applications are servers which communicate with
 multiple clients and programs with graphical user interfaces.")
     (license (x11-style "https://c-ares.haxx.se/license.html"))))
 
-(define-public c-ares/fixed
-  (package
-    (inherit c-ares)
-    (name "c-ares")
-    (version "1.17.1")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "https://c-ares.haxx.se/download/" name "-" version
-                    ".tar.gz"))
-              (sha256
-               (base32
-                "0h7wjfnk2092glqcp9mqaax7xx0s13m501z1gi0gsjl2vvvd0gfp"))))
-    (arguments
-     `(;; FIXME: Some tests require network access
-       #:tests? #f))))
-
 ;; gRPC requires a c-ares built with CMake in order to get the .cmake modules.
 ;; We can not build c-ares itself with CMake because that would introduce a
 ;; circular dependency through nghttp2.
diff --git a/gnu/packages/aidc.scm b/gnu/packages/aidc.scm
index 3db631d92e..21fc1957a2 100644
--- a/gnu/packages/aidc.scm
+++ b/gnu/packages/aidc.scm
@@ -30,9 +30,11 @@
   #:use-module (gnu packages autotools)
   #:use-module (gnu packages check)
   #:use-module (gnu packages imagemagick)
+  #:use-module (gnu packages gettext)
   #:use-module (gnu packages glib)
   #:use-module (gnu packages gtk)
   #:use-module (gnu packages image)
+  #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
   #:use-module (gnu packages python-xyz)
@@ -169,16 +171,18 @@ C/C++ programs to use its capabilities without restrictions or overhead.")
 (define-public zbar
   (package
     (name "zbar")
-    (version "0.23")
+    (version "0.23.90")
     (source
      (origin
-       (method url-fetch)
-       (uri (string-append "https://linuxtv.org/downloads/zbar/zbar-"
-                           version
-                           ".tar.bz2"))
+       (method git-fetch)
+       (uri
+        (git-reference
+         (url "https://github.com/mchehab/zbar")
+         (commit version)))
+       (file-name (git-file-name name version))
        (sha256
         (base32
-         "0bmd93a15qpgbsq9c9j33qms18rdrgz6gbc48zi6z9w5pvrvi7z9"))))
+         "0rf3i7lx0fqzxsngird6l4d4dnl612nr32rm8sib699qqx67px8n"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags (list "--with-gtk=auto"
@@ -187,17 +191,27 @@ C/C++ programs to use its capabilities without restrictions or overhead.")
                                               (assoc-ref %outputs "out")
                                               "/etc"))))
     (native-inputs
-     `(("glib" ,glib "bin")
-       ("pkg-config" ,pkg-config)))
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("gettext" ,gettext-minimal)
+       ("glib" ,glib "bin")
+       ("gobject-introspection" ,gobject-introspection)
+       ("libtool" ,libtool)
+       ("pkg-config" ,pkg-config)
+       ("python-wrapper" ,python-wrapper)))
     (inputs
-     `(("gobject-introspection" ,gobject-introspection)
-       ("gtk+" ,gtk+)
+     `(("dbus" ,dbus)
        ("imagemagick" ,imagemagick)
        ("libjpeg" ,libjpeg-turbo)
+       ("perl" ,perl)
        ("python" ,python)
-       ("qtbase" ,qtbase-5)
        ("qtx11extras" ,qtx11extras)
        ("v4l-utils" ,v4l-utils)))
+    (propagated-inputs
+     ;; These are in 'requires' field of .pc files.
+     `(("glib" ,glib)
+       ("gtk+" ,gtk+)
+       ("qtbase" ,qtbase-5)))
     (synopsis "Bar code reader")
     (description
      "ZBar can read barcodes from various sources, such as video streams,
diff --git a/gnu/packages/algebra.scm b/gnu/packages/algebra.scm
index 6450ac8914..1c7f94ac34 100644
--- a/gnu/packages/algebra.scm
+++ b/gnu/packages/algebra.scm
@@ -4,7 +4,7 @@
 ;;; Copyright © 2016, 2017, 2018, 2019, 2020, 2021 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;; Copyright © 2014, 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2016, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
-;;; Copyright © 2017, 2020 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2017, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017–2021 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2017, 2019, 2021 Eric Bavier <bavier@posteo.net>
@@ -248,8 +248,8 @@ the real span of the lattice.")
                 "095s7vdlsxmxa0n0l1a082m6gjaypqfqkaj99z8j7dx0ji89hy8n"))))
     (build-system gnu-build-system)
     (native-inputs
-     `(("texlive" ,(texlive-union
-                    (list texlive-amsfonts/patched)))))
+     `(("texlive" ,(texlive-updmap.cfg
+                    (list texlive-amsfonts)))))
     (inputs `(("gmp" ,gmp)
               ("libx11" ,libx11)
               ("perl" ,perl)
@@ -702,12 +702,14 @@ binary.")
        ("ed" ,ed)
        ("flex" ,flex)
        ("texinfo" ,texinfo)))
+    (inputs
+     `(("readline" ,readline)))
     (arguments
      '(#:configure-flags
        (list "--with-readline")
        #:phases
        (modify-phases %standard-phases
-         (add-after 'unpack 'autogen
+         (replace 'bootstrap
            (lambda _
              (invoke "autoreconf" "-vif"))))))
     (home-page "https://www.gnu.org/software/bc/")
diff --git a/gnu/packages/android.scm b/gnu/packages/android.scm
index eb538f6540..f09d8e9522 100644
--- a/gnu/packages/android.scm
+++ b/gnu/packages/android.scm
@@ -4,7 +4,7 @@
 ;;; Copyright © 2016, 2020 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2017 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2017 Hartmut Goebel <h.goebel@crazy-compilers.com>
-;;; Copyright © 2017 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2017, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2019, 2020 Andreas Enge <andreas@enge.fr>
@@ -1026,13 +1026,6 @@ connected devices via ADB.")
     (arguments
      `(#:phases
        (modify-phases %standard-phases
-         (add-after 'unpack 'enjarify-wrapper-inherit-pythonpath
-           ;; enjarify sets PYTHONPATH from a shell script, overwriting
-           ;; PYTHONPATH set from guix. Comment out this line.
-           (lambda _
-             (substitute* "enjarify.sh"
-               (("export PYTHONPATH") "# export PYTHONPATH"))
-             #t))
          (add-before 'check 'fixup-expected-test-results
            ;; Upstream adjusted this test in commit:
            ;; 3ae884a6485af82d300515813f537685b08dd800
diff --git a/gnu/packages/arcan.scm b/gnu/packages/arcan.scm
index a84bf0d8dd..0ab157b525 100644
--- a/gnu/packages/arcan.scm
+++ b/gnu/packages/arcan.scm
@@ -75,12 +75,10 @@
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "src/platform/cmake/modules/FindGBMKMS.cmake"
                  (("/usr/local/include/libdrm")
-                  (string-append (assoc-ref inputs "libdrm")
-                                 "/include/libdrm")))
+                  (search-input-directory inputs "include/libdrm")))
                (substitute* "src/platform/cmake/modules/FindAPR.cmake"
                  (("/usr/local/apr/include/apr-1")
-                  (string-append (assoc-ref inputs "apr")
-                                 "/include/apr-1")))
+                  (search-input-directory inputs "include/apr-1")))
                #t))
            ;; Normally, it tries to fetch patched openal with git
            ;; but copying files manually in the right place seems to work too.
diff --git a/gnu/packages/assembly.scm b/gnu/packages/assembly.scm
index 51c0572674..177ea0b74f 100644
--- a/gnu/packages/assembly.scm
+++ b/gnu/packages/assembly.scm
@@ -9,6 +9,7 @@
 ;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
 ;;; Copyright © 2020 Christopher Lemmer Webber <cwebber@dustycloud.org>
 ;;; Copyright © 2020 B. Wilson <elaexuotee@wilsonb.com>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -57,14 +58,14 @@
 (define-public nasm
   (package
     (name "nasm")
-    (version "2.14.02")
+    (version "2.15.05")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://www.nasm.us/pub/nasm/releasebuilds/"
                                   version "/nasm-" version ".tar.xz"))
               (sha256
                (base32
-                "1xg8dfr49py15vbwk1rzcjc3zpqydmr49ahlijm56wlgj8zdwjp2"))))
+                "0gqand86b0r86k3h46dh560lykxmxqqywz5m55kgjfq7q4lngbrw"))))
     (build-system gnu-build-system)
     (native-inputs `(("perl" ,perl)  ;for doc and test target
                      ("texinfo" ,texinfo)))
@@ -75,11 +76,10 @@
          (add-after 'unpack 'dont-build-ps-pdf-outputs
            (lambda _
              (substitute* "doc/Makefile.in"
-               (("html nasmdoc.txt nasmdoc.pdf")
+               (("html nasmdoc.txt nasmdoc.pdf \\$\\(XZFILES\\)")
                 "html nasmdoc.txt")
                (("\\$\\(INSTALL_DATA\\) nasmdoc.pdf")
-                "$(INSTALL_DATA)"))
-             #t))
+                "$(INSTALL_DATA)"))))
          (add-after 'install 'install-info
            (lambda _
              (invoke "make" "install_doc"))))))
@@ -445,19 +445,19 @@ sets, both THUMB and ARM mode.")
 (define-public intel-xed
   (package
     (name "intel-xed")
-    (version "11.2.0")
+    (version "12.0.1")
     (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/intelxed/xed")
              (commit version)))
-       (sha256 (base32 "1jffayski2gpd54vaska7fmiwnnia8v3cka4nfyzjgl8xsky9v2s"))
+       (sha256 (base32 "07zfff8zf29c2n0wal87hiqfq3cwcjn80zz78mz0nyjfj09nd39f"))
        (file-name (git-file-name name version))
        (patches (search-patches "intel-xed-fix-nondeterminism.patch"))))
     (build-system gnu-build-system)
     (native-inputs
-     `(("python-wrapper" ,python-wrapper)
+     `(("python" ,python-wrapper)
        ("tcsh" ,tcsh)
        ;; As of the time of writing this comment, mbuild does not exist in the
        ;; Python Package Index and seems to only be used by intel-xed, so we
@@ -471,10 +471,10 @@ sets, both THUMB and ARM mode.")
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/intelxed/mbuild")
-                   (commit "5304b94361fccd830c0e2417535a866b79c1c297")))
+                   (commit "3de3f0d753c11dbe634bec611d4cc13f74768e4f")))
              (sha256
               (base32
-               "0r3avc3035aklqxcnc14rlmmwpj3jp09vbcbwynhvvmcp8srl7dl"))
+               "0z8hdhpmk8y5c9429p2yns9daswnffbprni9czkq3vij8f58lkg4"))
              (file-name (git-file-name name version)))))))
     (outputs '("out" "lib"))
     (arguments
@@ -489,8 +489,7 @@ sets, both THUMB and ARM mode.")
            (replace 'build
              (lambda* (#:key inputs #:allow-other-keys)
                (let ((mbuild (assoc-ref inputs "mbuild")))
-                 (setenv "PYTHONPATH" (string-append
-                                       (getenv "PYTHONPATH") ":" mbuild))
+                 (setenv "PYTHONPATH" mbuild)
                  (invoke "./mfile.py"
                          (string-append "--build-dir=" build-dir)
                          (string-append "--install-dir=" kit-dir)
@@ -517,8 +516,7 @@ sets, both THUMB and ARM mode.")
                  (copy-recursively (string-append kit-dir "/include")
                                    (string-append lib "/include"))
                  (copy-recursively (string-append kit-dir "/lib")
-                                   (string-append lib "/lib"))
-                 #t)))))))
+                                   (string-append lib "/lib")))))))))
     (home-page "https://intelxed.github.io/")
     (synopsis "Encoder and decoder for x86 (IA32 and Intel64) instructions")
     (description "The Intel X86 Encoder Decoder (XED) is a software library and
diff --git a/gnu/packages/attr.scm b/gnu/packages/attr.scm
index 3237376d40..a062125303 100644
--- a/gnu/packages/attr.scm
+++ b/gnu/packages/attr.scm
@@ -30,14 +30,14 @@
 (define-public attr
   (package
     (name "attr")
-    (version "2.4.48")
+    (version "2.5.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://savannah/attr/attr-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "1rr4adzwax4bzr2c00f06zcsljv5y6p9wymz1g89ww7cb2rp5bay"))))
+                "1y6sibbkrcjygv8naadnsg6xmsqwfh6cwrqk01l0v2i5kfacdqds"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases
@@ -57,8 +57,7 @@
              ;; extended attributes, and we wish to allow Guix to be built
              ;; on such systems.
              (unless target
-               (system* "make" "tests" "-C" "test"))
-             #t)))))
+               (system* "make" "tests" "-C" "test")))))))
     (inputs
      ;; Perl is needed to run tests; remove it from cross builds.
      (if (%current-target-system)
diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index b9ac034f36..76c404e735 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -387,8 +387,8 @@ by MusicIP.")
      (origin
        (method url-fetch)
        (uri
-        (string-append "https://sourceforge.net/projects/faac/files/faac-src/"
-                       "faac-1.30/faac-1_30.tar.gz/download"))
+        (string-append "mirror://sourceforge/faac/faac-src"
+                       "/faac-" version "/faac-1_30.tar.gz"))
        (sha256
         (base32 "1lmj0dib3mjp84jhxc5ddvydkzzhb0gfrdh3ikcidjlcb378ghxd"))))
     (build-system gnu-build-system)
@@ -2108,9 +2108,9 @@ synchronous execution of all clients, and low latency operation.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              ;; Make sure 'jack_control' runs with the correct PYTHONPATH.
              (let* ((out (assoc-ref outputs "out"))
-                    (path (getenv "PYTHONPATH")))
+                    (path (getenv "GUIX_PYTHONPATH")))
                (wrap-program (string-append out "/bin/jack_control")
-                 `("PYTHONPATH" ":" prefix (,path))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,path))))
              #t)))))
     (inputs
      `(("alsa-lib" ,alsa-lib)
@@ -3360,8 +3360,10 @@ analysis plugins or audio feature extraction plugins.")
             ;; Originally a symlink to '/usr/local/share/automake-1.12/ar-lib'.
             (delete-file "ar-lib")
             (symlink
-             (string-append (assoc-ref inputs "automake") "/share/automake-"
-                            ,(package-version automake) "/ar-lib")
+             (search-input-file inputs
+                                (string-append "/share/automake-"
+                                               ,(package-version automake)
+                                               "/ar-lib"))
              "ar-lib")
             #t)))))
     (home-page "http://sbsms.sourceforge.net/")
@@ -4336,8 +4338,7 @@ the following features:
           (base32 "189l6lz8sz5vr6bjyzgcsrvksl1w6crqsg0q65r94b5yjsmjnpr4"))))
       (build-system meson-build-system)
       (arguments
-       `(#:meson ,meson-0.55
-         ;; Using a "release" build is recommended for performance
+       `(;; Using a "release" build is recommended for performance
          #:build-type "release"
          #:phases
          (modify-phases %standard-phases
@@ -4823,10 +4824,11 @@ as is the case with audio plugins.")
                (chmod (string-append out "/share/carla/carla") #o555)
                #t)))
          (add-after 'install 'wrap-executables
-           (lambda* (#:key outputs #:allow-other-keys)
+           (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out")))
                (wrap-script (string-append out "/bin/carla")
-                            `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH"))))
+                            #:guile (search-input-file inputs "bin/guile")
+                            `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH"))))
                #t))))))
     (inputs
      `(("alsa-lib" ,alsa-lib)
@@ -4920,8 +4922,7 @@ in the package.")
             "1570m2dfia17dbkhd2qhx8jjihrpm7g8nnyg6n4wif4vv229s7dz"))))
    (build-system meson-build-system)
    (arguments
-    `(#:meson ,meson-0.55
-      #:configure-flags
+    `(#:configure-flags
       ;; Build the tests.
       `("-Dtests=true")))
    (inputs
@@ -5222,11 +5223,10 @@ Rate} 3600x2250 bit/s vocoder used in various radio systems.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda* (#:key inputs #:allow-other-keys)
-             (let* ((python (string-append (assoc-ref inputs "python")
-                                          "/bin/python3"))
-                   (run-tests (string-append "../ableton-link-"
-                                             ,version
-                                             "-checkout/ci/run-tests.py")))
+             (let* ((python (search-input-file inputs "/bin/python3"))
+                    (run-tests (string-append "../ableton-link-"
+                                              ,version
+                                              "-checkout/ci/run-tests.py")))
                (invoke python run-tests "--target" "LinkCoreTest")
                (invoke python run-tests "--target" "LinkDiscoveryTest"))))
          (add-before 'install 'patch-cmake
diff --git a/gnu/packages/autotools.scm b/gnu/packages/autotools.scm
index 33e1905a25..cdd7425a07 100644
--- a/gnu/packages/autotools.scm
+++ b/gnu/packages/autotools.scm
@@ -59,12 +59,9 @@
         "113nlmidxy9kjr45kg9x3ngar4951mvag1js2a3j8nxcz34wxsv4"))))
     (build-system gnu-build-system)
     (inputs
-     ;; TODO: remove `if' in the next rebuild cycle.
-     (if (%current-target-system)
-         `(("bash" ,bash-minimal)
-           ("perl" ,perl)
-           ("m4" ,m4))
-         '()))
+     `(("bash" ,bash-minimal)
+       ("perl" ,perl)
+       ("m4" ,m4)))
     (native-inputs
      `(("perl" ,perl)
        ("m4" ,m4)))
@@ -205,9 +202,9 @@ files with a system-specific shebang."
     (inputs `(("guile"
                ;; XXX: Kludge to hide the circular dependency.
                ,(module-ref (resolve-interface '(gnu packages guile))
-                            'guile-2.0))
+                            'guile-3.0/fixed))
               ("autoconf" ,autoconf)
-              ("bash" ,bash)))
+              ("bash" ,bash-minimal)))
     (arguments
      '(#:modules ((guix build utils))
        #:builder
@@ -320,24 +317,21 @@ output is indexed in many ways to simplify browsing.")
 (define-public automake
   (package
     (name "automake")
-    (version "1.16.2")
+    (version "1.16.3")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnu/automake/automake-"
                                  version ".tar.xz"))
              (sha256
               (base32
-                "1l7dkqbsmbf94ax29jj1jf6a0r6ikc8jybg1p5m0c3ki7pg5ki6c"))
+                "0fmz2fhmzcpacnprl5msphvaflwiy0hvpgmqlgfny72ddijzfazz"))
              (patches
               (search-patches "automake-skip-amhello-tests.patch"))))
     (build-system gnu-build-system)
     (inputs
-     ;; TODO: remove `if' in the next rebuild cycle.
-     (if (%current-target-system)
-         `(("autoconf" ,autoconf-wrapper)
-           ("bash" ,bash-minimal)
-           ("perl" ,perl))
-         '()))
+     `(("autoconf" ,autoconf-wrapper)
+       ("bash" ,bash-minimal)
+       ("perl" ,perl)))
     (native-inputs
      `(("autoconf" ,autoconf-wrapper)
        ("perl" ,perl)))
@@ -482,11 +476,19 @@ Makefile, simplifying the entire process for the developer.")
                (("/bin/sh")
                 (string-append bash "/bin/sh")))
              #t)))
-         (add-after 'patch-source-shebangs 'restore-ltmain-shebang
-           (lambda* (#:key inputs #:allow-other-keys)
-             (substitute* "build-aux/ltmain.in"
-               (("^#!.*/bin/sh$") "#!/bin/sh"))
-             #t)))))
+         ;; These files may be copied into source trees by libtoolize,
+         ;; therefore they must not point to store file names that would be
+         ;; leaked with tarballs generated by make dist.
+         (add-after 'install 'restore-build-aux-shebang
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (dir (string-append out "/share/libtool/build-aux")))
+               (for-each (lambda (file)
+                           (format #t "restoring shebang on `~a'~%" file)
+                           (substitute* file
+                             (("^#!.*/bin/sh") "#!/bin/sh")))
+                         (find-files dir ".*"))
+               #t))))))
 
     (synopsis "Generic shared library support tools")
     (description
diff --git a/gnu/packages/aux-files/guile-launcher.c b/gnu/packages/aux-files/guile-launcher.c
index 47ba069de1..ad0094bff5 100644
--- a/gnu/packages/aux-files/guile-launcher.c
+++ b/gnu/packages/aux-files/guile-launcher.c
@@ -82,10 +82,13 @@ main (int argc, char **argv)
   unsetenv ("GUILE_LOAD_PATH");
   unsetenv ("GUILE_LOAD_COMPILED_PATH");
 
-  /* XXX: Do not let GMP allocate via libgc as this can lead to memory
-     corruption in GnuTLS/Nettle since Nettle also uses GMP:
+#if !SCM_ENABLE_MINI_GMP
+  /* XXX: On Guile < 3.0.6 and Guile built without its bundled mini-GMP, do
+     not let GMP allocate via libgc as this can lead to memory corruption in
+     GnuTLS/Nettle since Nettle also uses GMP:
      <https://issues.guix.gnu.org/46330>.  */
   scm_install_gmp_memory_functions = 0;
+#endif
 
   scm_boot_guile (argc, argv, inner_main, 0);
   return 0; /* never reached */
diff --git a/gnu/packages/aux-files/python/sanity-check.py b/gnu/packages/aux-files/python/sanity-check.py
new file mode 100644
index 0000000000..83b6d583ca
--- /dev/null
+++ b/gnu/packages/aux-files/python/sanity-check.py
@@ -0,0 +1,92 @@
+# -*- coding: utf-8 -*-
+# GNU Guix --- Functional package management for GNU
+# Copyright © 2021 Lars-Dominik Braun <lars@6xq.net>
+#
+# This file is part of GNU Guix.
+#
+# GNU Guix is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or (at
+# your option) any later version.
+#
+# GNU Guix is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+from __future__ import print_function  # Python 2 support.
+import importlib
+import pkg_resources
+import sys
+import traceback
+
+try:
+    from importlib.machinery import PathFinder
+except ImportError:
+    PathFinder = None
+
+ret = 0
+
+# Only check site-packages installed by this package, but not dependencies
+# (which pkg_resources.working_set would include). Path supplied via argv.
+ws = pkg_resources.find_distributions(sys.argv[1])
+
+for dist in ws:
+    print('validating', repr(dist.project_name), dist.location)
+    try:
+        print('...checking requirements: ', end='')
+        req = str(dist.as_requirement())
+        # dist.activate() is not enough to actually check requirements, we
+        # have to .require() it.
+        pkg_resources.require(req)
+        print('OK')
+    except Exception as e:
+        print('ERROR:', req, e)
+        ret = 1
+        continue
+
+    # Try to load top level modules. This should not have any side-effects.
+    try:
+        metalines = dist.get_metadata_lines('top_level.txt')
+    except (KeyError, FileNotFoundError):
+        # distutils (i.e. #:use-setuptools? #f) will not install any metadata.
+        # This file is also missing for packages built using a PEP 517 builder
+        # such as poetry.
+        print('WARNING: cannot determine top-level modules')
+        continue
+    for name in metalines:
+        # Only available on Python 3.
+        if PathFinder and PathFinder.find_spec(name) is None:
+            # Ignore unavailable modules, often C modules, which were not
+            # installed at the top-level. Cannot use ModuleNotFoundError,
+            # because it is raised by failed imports too.
+            continue
+        try:
+            print('...trying to load module', name, end=': ')
+            importlib.import_module(name)
+            print('OK')
+        except Exception:
+            print('ERROR:')
+            traceback.print_exc(file=sys.stdout)
+            ret = 1
+
+    # Try to load entry points of console scripts too, making sure they
+    # work. They should be removed if they don't. Other groups may not be
+    # safe, as they can depend on optional packages.
+    for group, v in dist.get_entry_map().items():
+        if group not in {'console_scripts', 'gui_scripts'}:
+            continue
+        for name, ep in v.items():
+            try:
+                print('...trying to load endpoint', group, name, end=': ')
+                ep.load()
+                print('OK')
+            except Exception:
+                print('ERROR:')
+                traceback.print_exc(file=sys.stdout)
+                ret = 1
+
+sys.exit(ret)
diff --git a/gnu/packages/aux-files/python/sitecustomize.py b/gnu/packages/aux-files/python/sitecustomize.py
new file mode 100644
index 0000000000..65d3c7d554
--- /dev/null
+++ b/gnu/packages/aux-files/python/sitecustomize.py
@@ -0,0 +1,41 @@
+# -*- coding: utf-8 -*-
+# GNU Guix --- Functional package management for GNU
+# Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+#
+# This file is part of GNU Guix.
+#
+# GNU Guix is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or (at
+# your option) any later version.
+#
+# GNU Guix is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import sys
+
+python_root = os.path.realpath(sys.executable).split('/bin/')[0]
+major_minor = '{}.{}'.format(sys.version_info[0], sys.version_info[1])
+site_packages_prefix = 'lib/python' + major_minor + '/site-packages'
+python_site = python_root + '/' + site_packages_prefix
+
+try:
+    all_sites_raw = os.environ['GUIX_PYTHONPATH'].split(':')
+except KeyError:
+    all_sites_raw = []
+# Normalize paths, otherwise a trailing slash would cause it to not match.
+all_sites_norm = [os.path.normpath(p) for p in all_sites_raw]
+matching_sites = [p for p in all_sites_norm
+                  if p.endswith(site_packages_prefix)]
+
+# Insert sites matching the current version into sys.path, right before
+# Python's own site.
+sys_path_absolute = [os.path.realpath(p) for p in sys.path]
+index = sys_path_absolute.index(python_site)
+sys.path = sys.path[:index] + matching_sites + sys.path[index:]
diff --git a/gnu/packages/avahi.scm b/gnu/packages/avahi.scm
index b2aeeadf47..602f9d7997 100644
--- a/gnu/packages/avahi.scm
+++ b/gnu/packages/avahi.scm
@@ -74,7 +74,7 @@
        ("expat" ,expat)
        ("gdbm" ,gdbm)
        ("glib" ,glib)
-       ("libcap" ,libcap-2.31)       ;to enable chroot support in avahi-daemon
+       ("libcap" ,libcap)            ;to enable chroot support in avahi-daemon
        ("libdaemon" ,libdaemon)
        ("libevent" ,libevent)))
     (native-inputs
diff --git a/gnu/packages/axoloti.scm b/gnu/packages/axoloti.scm
index c6dd748773..411ebbc610 100644
--- a/gnu/packages/axoloti.scm
+++ b/gnu/packages/axoloti.scm
@@ -318,8 +318,8 @@ runtime.")
                    (lambda ()
                      (let* ((dir       (string-append (assoc-ref outputs "out")
                                                       "/share/axoloti"))
-                            (runtime   (string-append (assoc-ref inputs "axoloti-runtime")
-                                                      "/share/axoloti"))
+                            (runtime   (search-input-directory inputs
+                                                               "share/axoloti"))
                             (toolchain (assoc-ref inputs "cross-toolchain"))
                             (includes  (string-append
                                         toolchain
@@ -530,8 +530,8 @@ patcher application.")))
                ;; Install old firmware
                (let ((target (string-append share "/old_firmware/firmware-1.0.12"))
                      (old-firmware
-                      (string-append (assoc-ref inputs "axoloti-runtime")
-                                     "/share/axoloti/firmware/")))
+                      (search-input-directory inputs
+                                              "share/axoloti/firmware")))
                  (mkdir-p target)
                  (install-file (string-append old-firmware
                                               "flasher/flasher_build/flasher.bin")
diff --git a/gnu/packages/backup.scm b/gnu/packages/backup.scm
index 9ec4e281d8..5253e3d03d 100644
--- a/gnu/packages/backup.scm
+++ b/gnu/packages/backup.scm
@@ -136,8 +136,7 @@
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "HOME" (getcwd))   ; gpg needs to write to $HOME
              (setenv "TZDIR"            ; some timestamp checks need TZDIR
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo"))
+                     (search-input-directory inputs "share/zoneinfo"))
              ;; Some things respect TMPDIR, others hard-code /tmp, and the
              ;; defaults don't match up, breaking test_restart.  Fix it.
              (setenv "TMPDIR" "/tmp")
@@ -219,7 +218,7 @@ backups (called chunks) to allow easy burning to CD/DVD.")
 (define-public libarchive
   (package
     (name "libarchive")
-    (version "3.4.2")
+    (version "3.5.1")
     (source
      (origin
        (method url-fetch)
@@ -230,7 +229,7 @@ backups (called chunks) to allow easy burning to CD/DVD.")
                                  version ".tar.xz")))
        (sha256
         (base32
-         "18dd01ahs2hv74xm7axjc3yhq839p0x0s4vssvlmm8fknja09qfq"))))
+         "16r95rlmikll1k8vbhh06vq6x3srkc10hzxjjf3021mjs2ld65qf"))))
     (build-system gnu-build-system)
     (inputs
      `(("bzip2" ,bzip2)
@@ -845,8 +844,8 @@ NTFS volumes using @code{ntfs-3g}, preserving NTFS-specific attributes.")
                     (output-dir
                      (assoc-ref outputs "out"))
 
-                    ;; Just a default... not so useful on guixsd though
-                    ;; You probably want to a service with file(s) to point to.
+                    ;; Just a default... not so useful on Guix Systems though.
+                    ;; You probably want a service with file(s) to point to.
                     (confdir "/etc/dirvish")
 
                     (perl (string-append (assoc-ref %build-inputs "perl")
diff --git a/gnu/packages/base.scm b/gnu/packages/base.scm
index ea2e102c15..b9841a5cef 100644
--- a/gnu/packages/base.scm
+++ b/gnu/packages/base.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014, 2019 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2012 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2014, 2015, 2016, 2018 Mark H Weaver <mhw@netris.org>
@@ -17,6 +17,7 @@
 ;;; Copyright © 2020 Vitaliy Shatrov <D0dyBo0D0dyBo0@protonmail.com>
 ;;; Copyright © 2020 Chris Marusich <cmmarusich@gmail.com>
 ;;; Copyright © 2021 Leo Le Bouter <lle-bout@zaclys.net>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -39,6 +40,7 @@
   #:use-module (gnu packages)
   #:use-module (gnu packages acl)
   #:use-module (gnu packages algebra)
+  #:use-module (gnu packages attr)
   #:use-module (gnu packages bash)
   #:use-module (gnu packages bison)
   #:use-module (gnu packages ed)
@@ -56,6 +58,7 @@
   #:use-module (gnu packages gettext)
   #:use-module (guix i18n)
   #:use-module (guix utils)
+  #:use-module (guix gexp)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix git-download)
@@ -98,18 +101,18 @@ command-line arguments, multiple languages, and so on.")
 (define-public grep
   (package
    (name "grep")
-   (version "3.4")
+   (version "3.6")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnu/grep/grep-"
                                 version ".tar.xz"))
             (sha256
              (base32
-              "1yy33kiwrxrwj2nxa4fg15bvmwyghqbs8qwkdvy5phm784f7brjq"))
+              "0gipv6bzkm1aihj0ncqpyh164xrzgcxcv9r1kwzyk2g1mzl1azk6"))
             (patches (search-patches "grep-timing-sensitive-test.patch"))))
    (build-system gnu-build-system)
-   (native-inputs `(("perl" ,perl)))             ;some of the tests require it
-   (inputs `(("pcre" ,pcre)))
+   (native-inputs (list perl))                   ;some of the tests require it
+   (inputs (list pcre))
    (arguments
     `(#:phases
       (modify-phases %standard-phases
@@ -122,8 +125,7 @@ command-line arguments, multiple languages, and so on.")
               (substitute* (list (string-append bin "/egrep")
                                  (string-append bin "/fgrep"))
                 (("^exec grep")
-                 (string-append "exec " bin "/grep")))
-              #t))))))
+                 (string-append "exec " bin "/grep")))))))))
    (synopsis "Print lines matching a pattern")
    (description
      "grep is a tool for finding text inside files.  Text is found by
@@ -146,27 +148,24 @@ including, for example, recursive directory searching.")
                                 ".tar.gz"))
             (sha256
              (base32
-              "0alqagh0nliymz23kfjg6g9w3cr086k0sfni56gi8fhzqwa3xksk"))))
+              "0alqagh0nliymz23kfjg6g9w3cr086k0sfni56gi8fhzqwa3xksk"))
+            (patches (search-patches "coreutils-gnulib-tests.patch"))
+
+            ;; Remove this snippet once upstream releases a fixed version.
+            ;; This snippet changes Makefile.in, even though the upstream
+            ;; patch changes testsuite/local.mk, since we build sed from a
+            ;; release tarball.  See: https://bugs.gnu.org/36150
+            (snippet
+             '(begin
+                (substitute* "Makefile.in"
+                  (("^  abs_srcdir='\\$\\(abs_srcdir\\)'.*" previous-line)
+                   (string-append
+                    previous-line
+                    "  CONFIG_HEADER='$(CONFIG_HEADER)'\t\t\\\n")))))
+            (modules '((guix build utils)))))
    (build-system gnu-build-system)
-   (arguments
-    ;; TODO: When merging this into core-updates, keep the version of
-    ;; this code (with comment!) applied as a snippet.
-    `(,@(if (string-prefix? "powerpc64le" (or (%current-target-system)
-                                              (%current-system)))
-          `(#:phases
-            (modify-phases %standard-phases
-              (add-after 'unpack 'allow-building-on-selinux-systems
-                (lambda _
-                  (substitute* "Makefile.in"
-                    (("^  abs_srcdir='\\$\\(abs_srcdir\\)'.*" previous-line)
-                     (string-append
-                      previous-line
-                      "  CONFIG_HEADER='$(CONFIG_HEADER)'\t\t\\\n")))
-                  #t))))
-          '())))
    (synopsis "Stream editor")
-   (native-inputs
-    `(("perl" ,perl)))                            ;for tests
+   (native-inputs (list perl))                    ;for tests
    (description
     "Sed is a non-interactive, text stream editor.  It receives a text
 input from a file or from standard input and it then applies a series of text
@@ -179,14 +178,14 @@ implementation offers several extensions over the standard utility.")
 (define-public tar
   (package
    (name "tar")
-   (version "1.32")
+   (version "1.34")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnu/tar/tar-"
                                 version ".tar.xz"))
             (sha256
              (base32
-              "1n7xy657ii0sa42zx6944v2m4v9qrh6sqgmw17l3nch3y43sxlyh"))
+              "0a0x87anh9chbi2cgcyy7pmnm5hzk4yd1w2j8gm1wplwhwkbvgk3"))
             (patches (search-patches "tar-skip-unreliable-tests.patch"
                                      "tar-remove-wholesparse-check.patch"))))
    (build-system gnu-build-system)
@@ -214,13 +213,12 @@ implementation offers several extensions over the standard utility.")
                      (let ((bash (assoc-ref inputs "bash")))
                        (substitute* "src/system.c"
                          (("/bin/sh")
-                          (string-append bash "/bin/sh")))
-                       #t))))))
+                          (string-append bash "/bin/sh")))))))))
 
    ;; When cross-compiling, the 'set-shell-file-name' phase needs to be able
    ;; to refer to the target Bash.
    (inputs (if (%current-target-system)
-               `(("bash" ,bash))
+               (list bash)
                '()))
 
    (synopsis "Managing tar archives")
@@ -253,7 +251,7 @@ standard utility.")
     (if (%current-target-system)
         `(#:configure-flags '("gl_cv_func_working_mktime=yes"))
         '()))
-   (native-inputs `(("ed" ,ed)))
+   (native-inputs (list ed))
    (synopsis "Apply differences to originals, with optional backups")
    (description
     "Patch is a program that applies changes to files based on differences
@@ -274,9 +272,10 @@ differences.")
                                 version ".tar.xz"))
             (sha256
              (base32
-              "09isrg0isjinv8c535nxsi1s86wfdfzml80dbw41dj9x3hiad9xk"))))
+              "09isrg0isjinv8c535nxsi1s86wfdfzml80dbw41dj9x3hiad9xk"))
+            (patches (search-patches "coreutils-gnulib-tests.patch"))))
    (build-system gnu-build-system)
-   (native-inputs `(("perl" ,perl)))
+   (native-inputs (list perl))
    (synopsis "Comparing and merging files")
    (description
     "GNU Diffutils is a package containing tools for finding the
@@ -290,16 +289,15 @@ interactive means to merge two files.")
 (define-public findutils
   (package
    (name "findutils")
-   (version "4.7.0")
+   (version "4.8.0")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnu/findutils/findutils-"
                                 version ".tar.xz"))
             (sha256
              (base32
-              "16kqz9yz98dasmj70jwf5py7jk558w96w0vgp3zf9xsqk3gzpzn5"))
-            (patches (search-patches "findutils-localstatedir.patch"
-                                     "findutils-test-rwlock-threads.patch"))))
+              "0r3i72hnw0a30khlczi9k2c51aamaj6kfmp5mk3844nrjxz7n4jp"))
+            (patches (search-patches "findutils-localstatedir.patch"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags (list
@@ -311,8 +309,7 @@ interactive means to merge two files.")
                      (substitute* '("tests/xargs/verbose-quote.sh"
                                     "tests/find/exec-plus-last-file.sh")
                        (("#!/bin/sh")
-                        (string-append "#!" (which "sh"))))
-                     #t)))))
+                        (string-append "#!" (which "sh")))))))))
    (synopsis "Operating on files matching given criteria")
    (description
     "Findutils supplies the basic file directory searching utilities of the
@@ -335,18 +332,20 @@ used to apply commands with arbitrarily long arguments.")
             (sha256
              (base32
               "1yjcrh5hw70c0yn8zw55pd6j51dj90anpq8mmg649ps9g3gdhn24"))
-            (patches (search-patches "coreutils-ls.patch"))))
+            (patches (search-patches "coreutils-ls.patch"
+                                     "coreutils-gnulib-tests.patch"))))
    (build-system gnu-build-system)
-   (inputs `(("acl"  ,acl)                        ; TODO: add SELinux
-             ("gmp"  ,gmp)                        ;bignums in 'expr', yay!
+   (inputs `(,acl                                 ;TODO: add SELinux
+             ,attr                                ;for xattrs in ls, mv, etc
+             ,gmp                                 ;bignums in 'expr', yay!
 
              ;; Do not use libcap when cross-compiling since it's not quite
              ;; cross-compilable; and use it only for supported systems.
              ,@(if (and (not (%current-target-system))
                         (member (%current-system)
                                 (package-supported-systems libcap)))
-             `(("libcap" ,libcap-2.31))        ;capability support in 'ls', etc.
-             '())))
+                   `(,libcap)                ;capability support in 'ls', etc.
+                   '())))
    (native-inputs
     ;; Perl is needed to run tests in native builds, and to run the bundled
     ;; copy of help2man.  However, don't pass it when cross-compiling since
@@ -354,7 +353,7 @@ used to apply commands with arbitrarily long arguments.")
     ;; for help2man.
     (if (%current-target-system)
         '()
-        `(("perl" ,perl))))
+        (list perl)))
    (outputs '("out" "debug"))
    (arguments
     `(#:parallel-build? #f            ; help2man may be called too early
@@ -383,16 +382,18 @@ used to apply commands with arbitrarily long arguments.")
                      (substitute* (find-files "gnulib-tests" "\\.c$")
                        (("/bin/sh") (which "sh")))
                      (substitute* (find-files "tests" "\\.sh$")
-                       (("#!/bin/sh") (string-append "#!" (which "sh"))))
-                     #t))
-                 ,@(if (hurd-target?)
-                       `((add-after 'unpack 'remove-tests
-                           (lambda _
-                             (substitute* "Makefile.in"
+                       (("#!/bin/sh") (string-append "#!" (which "sh"))))))
+                 (add-after 'unpack 'remove-tests
+                   (lambda _
+                     ,@(if (hurd-target?)
+                           '((substitute* "Makefile.in"
                                ;; this test hangs
-                               (("^ *tests/misc/timeout-group.sh.*") ""))
-                             #t)))
-                       '()))))
+                               (("^ *tests/misc/timeout-group.sh.*") "")))
+                           '())
+                     (substitute* "Makefile.in"
+                       ;; fails on filesystems where inotify cannot be used,
+                       ;; more info in #47935
+                       (("^ *tests/tail-2/inotify-dir-recreate.sh.*") "")))))))
    (synopsis "Core GNU utilities (file, text, shell)")
    (description
     "GNU Coreutils package includes all of the basic command-line tools that
@@ -409,6 +410,7 @@ standard.")
     (inherit coreutils)
     (name "coreutils-minimal")
     (outputs '("out"))
+    (native-inputs '())
     (inputs '())))
 
 (define-public coreutils-8.30
@@ -436,8 +438,7 @@ standard.")
                 ;; specific issue, but "env-S.pl" is not adjusted for build
                 ;; environments with long prefixes (/tmp/guix-build-...).
                 (substitute* "Makefile"
-                  (("^.*tests/misc/env-S.pl.*$") ""))
-                #t)))))))))
+                  (("^.*tests/misc/env-S.pl.*$") "")))))))))))
 
 (define-public gnu-make
   (package
@@ -452,8 +453,8 @@ standard.")
               "06cfqzpqsvdnsxbysl5p2fgdgxgl9y4p7scpnrfa8z2zgkjdspz0"))
             (patches (search-patches "make-impure-dirs.patch"))))
    (build-system gnu-build-system)
-   (native-inputs `(("pkg-config" ,pkg-config)))  ; to detect Guile
-   (inputs `(("guile" ,guile-3.0)))
+   (native-inputs (list pkg-config))              ;to detect Guile
+   (inputs (list guile-3.0))
    (outputs '("out" "debug"))
    (arguments
     `(,@(if (hurd-target?)
@@ -469,8 +470,7 @@ standard.")
               (substitute* "src/job.c"
                 (("default_shell =.*$")
                  (format #f "default_shell = \"~a/bin/sh\";\n"
-                         bash)))
-              #t))))))
+                         bash)))))))))
    (synopsis "Remake files automatically")
    (description
     "Make is a program that is used to control the production of
@@ -504,20 +504,19 @@ change.  GNU make offers many powerful extensions over the standard utility.")
                (substitute* "job.c"
                  (("default_shell =.*$")
                   (format #f "default_shell = \"~a/bin/sh\";\n"
-                          bash)))
-               #t))))))))
+                          bash)))))))))))
 
 (define-public binutils
   (package
    (name "binutils")
-   (version "2.34")
+   (version "2.37")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnu/binutils/binutils-"
                                 version ".tar.bz2"))
             (sha256
              (base32
-              "1rin1f5c7wm4n3piky6xilcrpf2s0n3dd5vqq8irrxkcic3i1w49"))
+              "1m3b2rdfv1dmdpd0bzg1hy7i8a2qng53szc6livyi3nh6101mz37"))
             (patches (search-patches "binutils-loongson-workaround.patch"))))
    (build-system gnu-build-system)
 
@@ -542,17 +541,7 @@ change.  GNU make offers many powerful extensions over the standard utility.")
 
                           ;; Make sure 'ar' and 'ranlib' produce archives in a
                           ;; deterministic fashion.
-                          "--enable-deterministic-archives")
-
-      ;; XXX: binutils 2.34 was mistakenly released without generated manuals:
-      ;; <https://sourceware.org/bugzilla/show_bug.cgi?id=25491>.  To avoid a
-      ;; circular dependency on texinfo, prevent the build system from creating
-      ;; the manuals by calling "true" instead of "makeinfo"...
-      #:make-flags '("MAKEINFO=true")))
-
-   ;; ...and "hide" this package so that users who install binutils get the
-   ;; version with documentation defined below.
-   (properties '((hidden? . #t)))
+                          "--enable-deterministic-archives")))
 
    (synopsis "Binary utilities: bfd gas gprof ld")
    (description
@@ -565,18 +554,6 @@ included.")
    (license gpl3+)
    (home-page "https://www.gnu.org/software/binutils/")))
 
-;; Work around a problem with binutils 2.34 whereby manuals are missing from
-;; the release tarball.  Remove this and the related code above when updating.
-(define-public binutils+documentation
-  (package/inherit
-   binutils
-   (native-inputs
-    `(("texinfo" ,texinfo)))
-   (arguments
-    (substitute-keyword-arguments (package-arguments binutils)
-      ((#:make-flags _ ''()) ''())))
-   (properties '())))
-
 ;; FIXME: ath9k-firmware-htc-binutils.patch do not apply on 2.34 because of a
 ;; big refactoring of xtensa-modules.c (commit 567607c11fbf7105 upstream).
 ;; Keep this version around until the patch is updated.
@@ -597,7 +574,7 @@ included.")
    (properties '())))
 
 (define-public binutils-gold
-  (package/inherit binutils+documentation
+  (package/inherit binutils
     (name "binutils-gold")
     (arguments
      `(#:phases
@@ -605,8 +582,7 @@ included.")
          (add-after 'patch-source-shebangs 'patch-more-shebangs
            (lambda _
              (substitute* "gold/Makefile.in"
-               (("/bin/sh") (which "sh")))
-             #t)))
+               (("/bin/sh") (which "sh"))))))
        ,@(substitute-keyword-arguments (package-arguments binutils)
          ; Upstream is aware of unrelocatable test failures on arm*.
          ((#:tests? _ #f)
@@ -705,32 +681,26 @@ the store.")
   ;; version 2.28, GNU/Hurd used a different glibc branch.
   (package
    (name "glibc")
-   (version "2.31")
+   (version "2.33")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnu/glibc/glibc-" version ".tar.xz"))
             (sha256
              (base32
-              "05zxkyz9bv3j9h0xyid1rhvh3klhsmrpkf3bcs6frvlgyr2gwilj"))
-            (snippet
-             ;; Disable 'ldconfig' and /etc/ld.so.cache.  The latter is
-             ;; required on LFS distros to avoid loading the distro's libc.so
-             ;; instead of ours.
-             '(begin
-                (substitute* "sysdeps/unix/sysv/linux/configure"
-                  (("use_ldconfig=yes")
-                   "use_ldconfig=no"))
-                #t))
-            (modules '((guix build utils)))
-            (patches (search-patches "glibc-ldd-x86_64.patch"
-                                     "glibc-hidden-visibility-ldconfig.patch"
+              "1zvp0qdfbdyqrzydz18d9zg3n5ygy8ps7cmny1bvsp8h1q05c99f"))
+            (patches (search-patches "glibc-ldd-powerpc.patch"
+                                     "glibc-ldd-x86_64.patch"
+                                     "glibc-dl-cache.patch"
                                      "glibc-versioned-locpath.patch"
                                      "glibc-allow-kernel-2.6.32.patch"
                                      "glibc-reinstate-prlimit64-fallback.patch"
                                      "glibc-supported-locales.patch"
+                                     "glibc-cross-objdump.patch"
+                                     "glibc-cross-objcopy.patch" ;must come 2nd
                                      "glibc-hurd-clock_t_centiseconds.patch"
                                      "glibc-hurd-clock_gettime_monotonic.patch"
-                                     "glibc-hurd-signal-sa-siginfo.patch"))))
+                                     "glibc-hurd-mach-print.patch"
+                                     "glibc-hurd-gettyent.patch"))))
    (build-system gnu-build-system)
 
    ;; Glibc's <limits.h> refers to <linux/limit.h>, for instance, so glibc
@@ -803,6 +773,11 @@ the store.")
                   '("--disable-werror")
                   '()))
 
+      ;; Arrange so that /etc/rpc & co. go to $out/etc.
+      #:make-flags (list (string-append "sysconfdir="
+                                        (assoc-ref %outputs "out")
+                                        "/etc"))
+
       #:tests? #f                                 ; XXX
       #:phases (modify-phases %standard-phases
                  (add-before
@@ -830,6 +805,11 @@ the store.")
                         ;; 4.7.1.
                         ((" -lgcc_s") ""))
 
+                      ;; Tell the ld.so cache code where the store is.
+                      (substitute* "elf/dl-cache.c"
+                        (("@STORE_DIRECTORY@")
+                         (string-append "\"" (%store-directory) "\"")))
+
                       ;; Have `system' use that Bash.
                       (substitute* "sysdeps/posix/system.c"
                         (("#define[[:blank:]]+SHELL_PATH.*$")
@@ -865,9 +845,7 @@ the store.")
                          ;; "bilingual" eval/exec magic at the top of the file.
                          "")
                         (("exec @PERL@")
-                         "exec perl"))
-
-                      #t)))
+                         "exec perl")))))
 
                  (add-after 'install 'move-static-libs
                    (lambda* (#:key outputs #:allow-other-keys)
@@ -905,17 +883,8 @@ the store.")
                                      ((out) static)))
                                  (filter linker-script?
                                          (map (cut string-append slib "/" <>)
-                                              files)))
-                       #t)))
-
-                 ,@(if (target-powerpc?)
-                     '((add-after 'unpack 'apply-patch
-                         (lambda* (#:key inputs #:allow-other-keys)
-                           (let ((patch (assoc-ref inputs
-                                                   "powerpc64le-patch")))
-                             (invoke "patch" "--force" "-p1"
-                                     "-i" patch)))))
-                     '())
+                                              files))))))
+
                  ,@(if (hurd-target?)
                        '((add-after 'install 'augment-libc.so
                            (lambda* (#:key outputs #:allow-other-keys)
@@ -923,8 +892,7 @@ the store.")
                                (substitute* (string-append out "/lib/libc.so")
                                  (("/[^ ]+/lib/libc.so.0.3")
                                   (string-append out "/lib/libc.so.0.3"
-                                                 " libmachuser.so libhurduser.so"))))
-                             #t)))
+                                                 " libmachuser.so libhurduser.so")))))))
                        '()))))
 
    (inputs `(("static-bash" ,static-bash)))
@@ -937,10 +905,6 @@ the store.")
                     ("gettext" ,gettext-minimal)
                     ("python" ,python-minimal)
 
-                    ,@(if (target-powerpc?)
-                        `(("powerpc64le-patch" ,@(search-patches
-                                                   "glibc-ldd-powerpc.patch")))
-                        '())
                     ,@(if (hurd-target?)
                           `(("mig" ,mig)
                             ("perl" ,perl))
@@ -969,6 +933,31 @@ with the Linux kernel.")
 ;; Below are old libc versions, which we use mostly to build locale data in
 ;; the old format (which the new libc cannot cope with.)
 
+(define-public glibc-2.31
+  (package
+    (inherit glibc)
+    (version "2.31")
+    (source (origin
+              (inherit (package-source glibc))
+              (uri (string-append "mirror://gnu/glibc/glibc-" version ".tar.xz"))
+              (sha256
+               (base32
+                "05zxkyz9bv3j9h0xyid1rhvh3klhsmrpkf3bcs6frvlgyr2gwilj"))
+              (patches (search-patches
+                        "glibc-ldd-powerpc.patch"
+                        "glibc-ldd-x86_64.patch"
+                        "glibc-dl-cache.patch"
+                        "glibc-hidden-visibility-ldconfig.patch"
+                        "glibc-versioned-locpath.patch"
+                        "glibc-allow-kernel-2.6.32.patch"
+                        "glibc-reinstate-prlimit64-fallback.patch"
+                        "glibc-supported-locales.patch"
+                        "glibc-hurd-clock_t_centiseconds.patch"
+                        "glibc-2.31-hurd-clock_gettime_monotonic.patch"
+                        "glibc-hurd-signal-sa-siginfo.patch"
+                        "glibc-hurd-mach-print.patch"
+                        "glibc-hurd-gettyent.patch"))))))
+
 (define-public glibc-2.30
   (package
     (inherit glibc)
@@ -1007,46 +996,6 @@ with the Linux kernel.")
                                        "glibc-reinstate-prlimit64-fallback.patch"
                                        "glibc-2.29-supported-locales.patch"))))))
 
-(define-public glibc-2.28
-  (package
-    (inherit glibc)
-    (version "2.28")
-    (source (origin
-              (inherit (package-source glibc))
-              (uri (string-append "mirror://gnu/glibc/glibc-" version ".tar.xz"))
-              (sha256
-               (base32
-                "10iha5ynvdj5m62vgpgqbq4cwvc2yhyl2w9yyyjgfxmdmx8h145i"))
-              (patches (search-patches "glibc-ldd-x86_64.patch"
-                                       "glibc-2.28-git-fixes.patch"
-                                       "glibc-hidden-visibility-ldconfig.patch"
-                                       "glibc-versioned-locpath.patch"
-                                       "glibc-allow-kernel-2.6.32.patch"
-                                       "glibc-reinstate-prlimit64-fallback.patch"
-                                       "glibc-hurd-magic-pid.patch"
-                                       "glibc-2.28-supported-locales.patch"))))))
-
-(define-public glibc-2.27
-  (package
-    (inherit glibc)
-    (version "2.27")
-    (source (origin
-              (inherit (package-source glibc))
-              (uri (string-append "mirror://gnu/glibc/glibc-" version ".tar.xz"))
-              (sha256
-               (base32
-                "0wpwq7gsm7sd6ysidv0z575ckqdg13cr2njyfgrbgh4f65adwwji"))
-              (patches (search-patches "glibc-ldd-x86_64.patch"
-                                       "glibc-2.27-git-fixes.patch"
-                                       "glibc-hidden-visibility-ldconfig.patch"
-                                       "glibc-versioned-locpath.patch"
-                                       "glibc-allow-kernel-2.6.32.patch"
-                                       "glibc-reinstate-prlimit64-fallback.patch"
-                                       "glibc-2.27-supported-locales.patch"
-                                       "glibc-CVE-2018-11236.patch"
-                                       "glibc-CVE-2018-11237.patch"))))
-    (properties `((lint-hidden-cve . ("CVE-2017-18269")))))) ; glibc-2.27-git-fixes
-
 (define-public (make-gcc-libc base-gcc libc)
   "Return a GCC that targets LIBC."
   (package (inherit base-gcc)
@@ -1126,8 +1075,7 @@ to the @code{share/locale} sub-directory of this package.")
                                             (string-append (dirname directory)
                                                            "/" name "."
                                                            normalized)))))
-                             locales)
-                   #t)))
+                             locales))))
              (delete 'install)
              (delete 'move-static-libs)))
          ((#:configure-flags flags)
@@ -1184,8 +1132,7 @@ to the @code{share/locale} sub-directory of this package.")
                                                          locale ".UTF-8")))
                                ',locales)
                      #t))))
-    (native-inputs `(("glibc" ,glibc)
-                     ("gzip" ,gzip)))
+    (native-inputs (list glibc gzip))
     (synopsis (if default-locales?
                   (P_ "Small sample of UTF-8 locales")
                   (P_ "Customized sample of UTF-8 locales")))
@@ -1238,17 +1185,15 @@ command.")
   (package (inherit glibc)
     (name "glibc-hurd-headers")
     (outputs '("out"))
-    (propagated-inputs `(("gnumach-headers" ,gnumach-headers)
-                         ("hurd-headers" ,hurd-headers)))
+    (propagated-inputs (list gnumach-headers hurd-headers))
     (native-inputs
-     `(("mig" ,(if (%current-target-system)
-                   ;; XXX: When targeting i586-pc-gnu, we need a 32-bit MiG,
-                   ;; hence this hack.
-                   (package
-                     (inherit mig)
-                     (arguments `(#:system "i686-linux")))
-                   mig))
-       ,@(package-native-inputs glibc)))
+     (modify-inputs (package-native-inputs glibc)
+       (prepend (if (%current-target-system)
+                    ;; XXX: When targeting i586-pc-gnu, we need a 32-bit MiG,
+                    ;; hence this hack.
+                    (package (inherit mig)
+                             (arguments `(#:system "i686-linux")))
+                    mig))))
     (arguments
      (substitute-keyword-arguments (package-arguments glibc)
        ;; We just pass the flags really needed to build the headers.
@@ -1267,8 +1212,7 @@ command.")
                (let ((out (assoc-ref outputs "out")))
                  (close-port
                   (open-output-file
-                   (string-append out "/include/gnu/stubs.h"))))
-               #t))
+                   (string-append out "/include/gnu/stubs.h"))))))
            (delete 'build)))))))                  ; nothing to build
 
 (define-public tzdata
@@ -1287,64 +1231,72 @@ command.")
                "022fn6gkmp7pamlgab04x0dm5hnyn2m2fcnyr3pvm36612xd5rrr"))))
     (build-system gnu-build-system)
     (arguments
-     `(#:tests? #f
-       #:make-flags (let ((out (assoc-ref %outputs "out"))
-                          (tmp (getenv "TMPDIR")))
-                      (list (string-append "TOPDIR=" out)
-                            (string-append "TZDIR=" out "/share/zoneinfo")
-                            (string-append "TZDEFAULT=" out
-                                           "/share/zoneinfo/localtime")
-
-                            ;; Likewise for the C library routines.
-                            (string-append "LIBDIR=" tmp "/lib")
-                            (string-append "MANDIR=" tmp "/man")
-
-                            ;; XXX: tzdata 2020b changed the on-disk format
-                            ;; of the time zone files from 'fat' to 'slim'.
-                            ;; Many packages (particularly evolution-data-server)
-                            ;; can not yet handle the latter, so we stick with
-                            ;; 'fat' for now.
-                            ,@(if (version>=? (package-version this-package)
-                                              "2020b")
-                                  '("CPPFLAGS=-DZIC_BLOAT_DEFAULT='\"fat\"'")
-                                  '())
-
-                            "AWK=awk"
-                            "CC=gcc"))
-       #:modules ((guix build utils)
-                  (guix build gnu-build-system)
-                  (srfi srfi-1))
-       #:phases
-       (modify-phases %standard-phases
-         (replace 'unpack
-           (lambda* (#:key source inputs #:allow-other-keys)
-             (invoke "tar" "xvf" source)
-             (invoke "tar" "xvf" (assoc-ref inputs "tzcode"))))
-         (add-after 'install 'post-install
-           (lambda* (#:key outputs #:allow-other-keys)
-             ;; Move data in the right place.
-             (let ((out (assoc-ref outputs "out")))
-               ;; Discard zic, dump, and tzselect, already
-               ;; provided by glibc.
-               (delete-file-recursively (string-append out "/usr"))
-               (symlink (string-append out "/share/zoneinfo")
-                        (string-append out "/share/zoneinfo/posix"))
-               (delete-file-recursively
-                (string-append out "/share/zoneinfo-posix"))
-               (copy-recursively (string-append out "/share/zoneinfo-leaps")
-                                 (string-append out "/share/zoneinfo/right"))
-               (delete-file-recursively
-                (string-append out "/share/zoneinfo-leaps"))
-               #t)))
-         (delete 'configure))))
-    (inputs `(("tzcode" ,(origin
-                          (method url-fetch)
-                          (uri (string-append
-                                "https://data.iana.org/time-zones/releases/tzcode"
-                                version ".tar.gz"))
-                          (sha256
-                           (base32
-                            "1l02b0jiwp3fl0xd6227i69d26rmx3yrnq0ssq9vvdmm4jhvyipb"))))))
+     (list #:tests? #f
+
+           ;; This consists purely of (architecture-independent) data, so
+           ;; ‘cross-compilation’ is pointless here!  (The binaries zic,
+           ;; dump, and tzselect are deleted in the post-install phase.)
+           #:target #f
+
+           #:make-flags
+           #~(let ((out #$output)
+                   (tmp (getenv "TMPDIR")))
+               (list (string-append "TOPDIR=" out)
+                     (string-append "TZDIR=" out "/share/zoneinfo")
+                     (string-append "TZDEFAULT=" out
+                                    "/share/zoneinfo/localtime")
+
+                     ;; Likewise for the C library routines.
+                     (string-append "LIBDIR=" tmp "/lib")
+                     (string-append "MANDIR=" tmp "/man")
+
+                     ;; XXX: tzdata 2020b changed the on-disk format
+                     ;; of the time zone files from 'fat' to 'slim'.
+                     ;; Many packages (particularly evolution-data-server)
+                     ;; can not yet handle the latter, so we stick with
+                     ;; 'fat' for now.
+                     #$@(if (version>=? (package-version this-package)
+                                        "2020b")
+                            '("CPPFLAGS=-DZIC_BLOAT_DEFAULT='\"fat\"'")
+                            '())
+
+                     "AWK=awk"
+                     "CC=gcc"))
+           #:modules '((guix build utils)
+                       (guix build gnu-build-system)
+                       (srfi srfi-1))
+           #:phases
+           #~(modify-phases %standard-phases
+               (replace 'unpack
+                 (lambda* (#:key source inputs #:allow-other-keys)
+                   (invoke "tar" "xvf" source)
+                   (invoke "tar" "xvf"
+                           #$(match (package-inputs this-package)
+                               (((_ tzcode)) tzcode)))))
+               (add-after 'install 'post-install
+                 (lambda* (#:key outputs #:allow-other-keys)
+                   ;; Move data in the right place.
+                   (let ((out (assoc-ref outputs "out")))
+                     ;; Discard zic, dump, and tzselect, already
+                     ;; provided by glibc.
+                     (delete-file-recursively (string-append out "/usr"))
+                     (symlink (string-append out "/share/zoneinfo")
+                              (string-append out "/share/zoneinfo/posix"))
+                     (delete-file-recursively
+                      (string-append out "/share/zoneinfo-posix"))
+                     (copy-recursively (string-append out "/share/zoneinfo-leaps")
+                                       (string-append out "/share/zoneinfo/right"))
+                     (delete-file-recursively
+                      (string-append out "/share/zoneinfo-leaps")))))
+               (delete 'configure))))
+    (inputs (list (origin
+                    (method url-fetch)
+                    (uri (string-append
+                          "https://data.iana.org/time-zones/releases/tzcode"
+                          version ".tar.gz"))
+                    (sha256
+                     (base32
+                      "1l02b0jiwp3fl0xd6227i69d26rmx3yrnq0ssq9vvdmm4jhvyipb")))))
     (home-page "https://www.iana.org/time-zones")
     (synopsis "Database of current and historical time zones")
     (description "The Time Zone Database (often called tz or zoneinfo)
@@ -1363,7 +1315,7 @@ and daylight-saving rules.")
   (hidden-package
    (package
      (inherit tzdata)
-     (version "2019c")
+     (version "2021a")
      (source (origin
                (method url-fetch)
                (uri (string-append
@@ -1371,16 +1323,16 @@ and daylight-saving rules.")
                      version ".tar.gz"))
                (sha256
                 (base32
-                 "0z7w1yv37cfk8yhix2cillam091vgp1j4g8fv84261q9mdnq1ivr"))))
+                 "022fn6gkmp7pamlgab04x0dm5hnyn2m2fcnyr3pvm36612xd5rrr"))))
      (inputs
-      `(("tzcode" ,(origin
-                     (method url-fetch)
-                     (uri (string-append
-                           "https://data.iana.org/time-zones/releases/tzcode"
-                           version ".tar.gz"))
-                     (sha256
-                      (base32
-                       "1m3y2rnf1nggxxhxplab5zdd5whvar3ijyrv7lifvm82irkd7szn")))))))))
+      (list (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://data.iana.org/time-zones/releases/tzcode"
+                    version ".tar.gz"))
+              (sha256
+               (base32
+                "1l02b0jiwp3fl0xd6227i69d26rmx3yrnq0ssq9vvdmm4jhvyipb"))))))))
 
 (define-public libiconv
   (package
@@ -1397,11 +1349,9 @@ and daylight-saving rules.")
               (snippet
                ;; Work around "declared gets" error on glibc systems (fixed by
                ;; Gnulib commit 66712c23388e93e5c518ebc8515140fa0c807348.)
-               '(begin
-                  (substitute* "srclib/stdio.in.h"
-                    (("^#undef gets") "")
-                    (("^_GL_WARN_ON_USE \\(gets.*") ""))
-                  #t))))
+               '(substitute* "srclib/stdio.in.h"
+                  (("^#undef gets") "")
+                  (("^_GL_WARN_ON_USE \\(gets.*") "")))))
     (build-system gnu-build-system)
     (synopsis "Character set conversion library")
     (description
diff --git a/gnu/packages/bash.scm b/gnu/packages/bash.scm
index ed2931fd97..7e98367bbb 100644
--- a/gnu/packages/bash.scm
+++ b/gnu/packages/bash.scm
@@ -6,6 +6,7 @@
 ;;; Copyright © 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2020 Zhu Zihao <all_but_last@163.com>
+;;; Copyright © 2021 Marius Bakke <marius@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -57,7 +58,7 @@
 
 (define (patch-url seqno)
   "Return the URL of Bash patch number SEQNO."
-  (format #f "mirror://gnu/bash/bash-5.0-patches/bash50-~3,'0d" seqno))
+  (format #f "mirror://gnu/bash/bash-5.1-patches/bash51-~3,'0d" seqno))
 
 (define (bash-patch seqno sha256-bv)
   "Return the origin of Bash patch SEQNO, with expected hash SHA256-BV."
@@ -70,26 +71,18 @@
   (list (bash-patch seqno (base32 hash))
         ...))
 
-(define %patch-series-5.0
+(define %patch-series-5.1
   ;; This is the current patches series for 5.0, generated using
   ;; 'download-patches' below.
   (patch-series
-    (1 "12bjfdy6bg8nhyw27bdgxn7h4paylx8d927skfmi9pxd1wgrxzpj")
-    (2 "01w7yrzmz10mw06ys0546vhl7isv2v402ziyvfd7k67588spvs47")
-    (3 "0ny81ridp5n0j69hb8ixrc7dmxybby54jbsz5hikly8kgg1wvssf")
-    (4 "021gqqvgydixkrmqss64b6srfdlkvnx88lyfzpxfrn5d6bc7li0l")
-    (5 "0xl2kyzm84nlyklrqzkn73ixabhzfhn9x91lzcmis89cppclvxav")
-    (6 "0844749ixk1z60437nkznzms1f0nzh9an62kj7sny6r0zyk2k1fn")
-    (7 "16xg37gp1b8zlj5969w8mcrparwqlcbj9695vn3qhgb7wdz1xd0p")
-    (8 "1qyp19krjh8zxvb0jgwmyjz40djslwcf4xi7kc1ab0iaca44bipf")
-    (9 "00yrjjqd95s81b21qq3ba1y7h879q8jaajlkjggc6grhcwbs4g7d")
-    (10 "04ca5bjv456v538mkspzvn4xb2zdphh31r4fpvfm9p5my0jw7yyn")
-    (11 "1sklyixvsv8993kxzs0jigacpdchjrq7jv5xpdx7kbqyp4rf6k9c")
-    (12 "0cz21qg2gbr40lfgza7g02bqi2qknwqgxnq459pjj640d0cywhr9")
-    (13 "16h9nwz3yzwj7fnxvlidjymdc4yr30h818433gh9j1x3in6igmzm")
-    (14 "12gm5bvv2pd3m72z2ilj26pa08c61az253dsgfl24vpf2ijywvjx")
-    (15 "0pm0px758w4i23s55wajcv6lqfiym7zgxvq0pxf6vclkv8nxy5x5")
-    (16 "0vdha332km2iwx8g2ld15jy7d24cbplzgr1531dpzylr9ajxglgz")))
+   (1 "1ymm8ppss6gyh9ifznjwiabrb4k91npd09c10y7mk66xp8yppc7b")
+   (2 "1gjx9zqcm407am3n2sh44b8dxm48kgm15rzfiijqxr01m0hn3shm")
+   (3 "1cdnpbfc64yhvkjj4d12s9ywp11g195vzfl1cab24sq55wkcrwi2")
+   (4 "11iwhy6v562bv0kk7lwj7f5jj65ma9bblivy0v02h3ggcibbdbls")
+   (5 "19bdyigdr81824nxvqr6a7k0cax60wq7376j6b91afbnwvlvbjyc")
+   (6 "051x8wlwrqk0yr0zg378vh824iklfl5g9pkmcdf62qp8gn9pvqbm")
+   (7 "0fir80pp1gmlpadmqcgkrv4y119pc7xllchjzg05fd7px73viz5c")
+   (8 "1lfjgshk8i9vch92p5wgc9r90j3phw79aa7gbai89w183b2z6b7j")))
 
 (define (download-patches store count)
   "Download COUNT Bash patches into store.  Return a list of
@@ -125,7 +118,7 @@ number/base32-hash tuples, directly usable in the 'patch-series' form."
                " -Wl,-rpath -Wl,"
                (assoc-ref %build-inputs "ncurses")
                "/lib")))
-         (version "5.0"))
+         (version "5.1"))
     (package
      (name "bash")
      (source (origin
@@ -134,11 +127,11 @@ number/base32-hash tuples, directly usable in the 'patch-series' form."
                     "mirror://gnu/bash/bash-" version ".tar.gz"))
               (sha256
                (base32
-                "0kgvfwqdcd90waczf4gx39xnrxzijhjrzyzv7s8v4w31qqm0za5l"))
+                "1alv68wplnfdm6mh39hm57060xgssb9vqca4yr1cyva0c342n0fc"))
               (patch-flags '("-p0"))
               (patches (cons (search-patch "bash-linux-pgrp-pipe.patch")
-                             %patch-series-5.0))))
-     (version (string-append version "." (number->string (length %patch-series-5.0))))
+                             %patch-series-5.1))))
+     (version (string-append version "." (number->string (length %patch-series-5.1))))
      (build-system gnu-build-system)
 
      (outputs '("out"
@@ -409,6 +402,7 @@ capturing.")
          ;; Install phase
          (invoke "./install.sh" %output)
          (wrap-script (string-append %output "/bin/bats")
+                      #:guile (search-input-file %build-inputs "bin/guile")
                       (list "PATH" 'prefix (string-split (getenv "PATH")
                                                          #\:))))))
     (build-system trivial-build-system)
diff --git a/gnu/packages/bdw-gc.scm b/gnu/packages/bdw-gc.scm
index ecac5b9368..5ced11bb64 100644
--- a/gnu/packages/bdw-gc.scm
+++ b/gnu/packages/bdw-gc.scm
@@ -46,14 +46,18 @@
       (list
        ;; Install gc_cpp.h et al.
        "--enable-cplusplus"
-       ;; In GNU/Hurd systems during the 'Check' phase,
+
+       ;; Work around <https://github.com/ivmai/bdwgc/issues/353>.
+       "--disable-munmap"
+
+       ;; In GNU/Hurd systems during the 'check' phase,
        ;; there is a deadlock caused by the 'gctest' test.
        ;; To disable the error set "--disable-gcj-support"
        ;; to configure script. See bug report and discussion:
        ;; <https://lists.opendylan.org/pipermail/bdwgc/2017-April/006275.html>
        ;; <https://lists.gnu.org/archive/html/bug-hurd/2017-01/msg00008.html>
-       ,@(if (hurd-triplet? (or (%current-system)
-                                (%current-target-system)))
+       ,@(if (target-hurd? (or (%current-system)
+                               (%current-target-system)))
              '("--disable-gcj-support")
              '()))))
    (native-inputs `(("pkg-config" ,pkg-config)))
@@ -85,17 +89,6 @@ C or C++ programs, though that is not its primary goal.")
 
    (license (x11-style (string-append home-page "license.txt")))))
 
-(define-public libgc/disable-munmap
-  ;; TODO: Use '--disable-munmap' by default on next rebuild cycle.
-  (package/inherit libgc
-    (arguments
-     ;; Work around <https://github.com/ivmai/bdwgc/issues/353>.
-     (substitute-keyword-arguments (package-arguments libgc)
-       ((#:configure-flags flags ''())
-        `(cons "--disable-munmap" ,flags))))
-    (properties `((hidden? . #t)
-                  ,@(package-properties libgc)))))
-
 ;; TODO: Add a static output in libgc in the next rebuild cycle.
 (define-public libgc/static-libs
   (package/inherit
diff --git a/gnu/packages/benchmark.scm b/gnu/packages/benchmark.scm
index 36465e4e7d..577196e3df 100644
--- a/gnu/packages/benchmark.scm
+++ b/gnu/packages/benchmark.scm
@@ -69,8 +69,7 @@
           'unpack 'patch-paths
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out"))
-                  (gnuplot (string-append (assoc-ref inputs "gnuplot")
-                                          "/bin/gnuplot")))
+                  (gnuplot (search-input-file inputs "/bin/gnuplot")))
               (substitute* "tools/plot/fio2gnuplot"
                 (("/usr/share/fio") (string-append out "/share/fio"))
                 ;; FIXME (upstream): The 'gnuplot' executable is used inline
@@ -104,7 +103,7 @@
                            "fiologparser.py"))
                ;; Make sure numpy et.al is found.
                (wrap-program (string-append newbin "/fiologparser_hist.py")
-                 `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH"))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH"))))
                #t))))))
     (outputs '("out" "utils"))
     (inputs
diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index 742b02cb5b..0b87d37bcf 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -12,7 +12,7 @@
 ;;; Copyright © 2018 Joshua Sierles, Nextjournal <joshua@nextjournal.com>
 ;;; Copyright © 2018 Gábor Boskovits <boskovits@gmail.com>
 ;;; Copyright © 2018, 2019, 2020, 2021 Mădălin Ionel Patrașcu <madalinionel.patrascu@mdc-berlin.de>
-;;; Copyright © 2019, 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2019, 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2019 Brian Leung <bkleung89@gmail.com>
 ;;; Copyright © 2019 Brett Gilio <brettg@gnu.org>
 ;;; Copyright © 2020 Björn Höfling <bjoern.hoefling@bjoernhoefling.de>
@@ -219,8 +219,7 @@ structure of the predicted RNA.")
               (snippet
                `(begin
                   ;; Delete bundled htslib.
-                  (delete-file-recursively "c/htslib-1.3.1")
-                  #t))))
+                  (delete-file-recursively "c/htslib-1.3.1")))))
     (build-system python-build-system)
     (arguments
      `(#:python ,python-2 ; BamM is Python 2 only.
@@ -240,37 +239,22 @@ structure of the predicted RNA.")
                  ;; Use autogen so that 'configure' works.
                  (substitute* "autogen.sh" (("/bin/sh") sh))
                  (setenv "CONFIG_SHELL" sh)
-                 (invoke "./autogen.sh")))
-             #t))
-         (delete 'build)
-         ;; Run tests after installation so compilation only happens once.
-         (delete 'check)
-         (add-after 'install 'wrap-executable
-           (lambda* (#:key outputs #:allow-other-keys)
-            (let* ((out  (assoc-ref outputs "out"))
-                   (path (getenv "PATH")))
-              (wrap-program (string-append out "/bin/bamm")
-                `("PATH" ":" prefix (,path))))
-            #t))
-         (add-after 'wrap-executable 'post-install-check
-           (lambda* (#:key inputs outputs #:allow-other-keys)
-             (setenv "PATH"
-                     (string-append (assoc-ref outputs "out")
-                                    "/bin:"
-                                    (getenv "PATH")))
-             (setenv "PYTHONPATH"
-                     (string-append
-                      (assoc-ref outputs "out")
-                      "/lib/python"
-                      (string-take (string-take-right
-                                    (assoc-ref inputs "python") 5) 3)
-                      "/site-packages:"
-                      (getenv "PYTHONPATH")))
+                 (invoke "./autogen.sh")))))
+         (delete 'build)                ;the build loops otherwise
+         (replace 'check
+           (lambda _
              ;; There are 2 errors printed, but they are safe to ignore:
              ;; 1) [E::hts_open_format] fail to open file ...
              ;; 2) samtools view: failed to open ...
-             (invoke "nosetests")
-             #t)))))
+             (invoke "nosetests")))
+         (add-after 'install 'wrap-executable
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((out  (assoc-ref outputs "out"))
+                    (path (getenv "PATH"))
+                    (pythonpath (getenv "GUIX_PYTHONPATH")))
+               (wrap-program (string-append out "/bin/bamm")
+                 `("PATH" ":" prefix (,path))
+                 `("GUIX_PYTHONPATH" ":" prefix (,pythonpath)))))))))
     (native-inputs
      `(("autoconf" ,autoconf)
        ("automake" ,automake)
@@ -916,9 +900,7 @@ servers supporting the protocol.")
                 "0wc7z8g8prgdx7n5chjva2fdq03wiwhqisjjxzkjg1j5k5ha7151"))))
     (build-system python-build-system)
     (arguments
-     `(#:modules ((ice-9 ftw)
-                  (srfi srfi-1)
-                  (srfi srfi-26)
+     `(#:modules ((srfi srfi-26)
                   (guix build utils)
                   (guix build python-build-system))
        ;; See https://github.com/daler/pybedtools/issues/192
@@ -938,8 +920,6 @@ servers supporting the protocol.")
              (substitute* "pybedtools/test/test_issues.py"
                (("def test_issue_303")
                 "def _test_issue_303"))))
-         ;; TODO: Remove phase after it's part of PYTHON-BUILD-SYSTEM.
-         ;; build system.
          ;; Force the Cythonization of C++ files to guard against compilation
          ;; problems.
          (add-after 'unpack 'remove-cython-generated-files
@@ -951,20 +931,12 @@ servers supporting the protocol.")
                  (string-take filename (string-index-right filename #\.)))
                (define (cythonized? c/c++-file)
                  (member (strip-extension c/c++-file) cython-sources))
-               (for-each delete-file (filter cythonized? c/c++-files))
-               #t)))
+               (for-each delete-file (filter cythonized? c/c++-files)))))
          (add-after 'remove-cython-generated-files 'generate-cython-extensions
            (lambda _
              (invoke "python" "setup.py" "cythonize")))
          (replace 'check
            (lambda _
-             (let* ((build-root-directory (string-append (getcwd) "/build/"))
-                    (build (string-append
-                            build-root-directory
-                            (find (cut string-prefix? "lib" <>)
-                                  (scandir build-root-directory)))))
-               (setenv "PYTHONPATH"
-                       (string-append build ":" (getenv "PYTHONPATH"))))
              ;; The tests need to be run from elsewhere...
              (mkdir-p "/tmp/test")
              (copy-recursively "pybedtools/test" "/tmp/test")
@@ -2086,15 +2058,10 @@ has several key features:
               (snippet '(begin
                           ;; Drop bundled htslib. TODO: Also remove samtools
                           ;; and bcftools.
-                          (delete-file-recursively "htslib")
-                          #t))))
+                          (delete-file-recursively "htslib")))))
     (build-system python-build-system)
     (arguments
-     `(#:modules ((ice-9 ftw)
-                  (srfi srfi-26)
-                  (guix build python-build-system)
-                  (guix build utils))
-       #:phases
+     `(#:phases
        (modify-phases %standard-phases
          (add-before 'build 'set-flags
            (lambda* (#:key inputs #:allow-other-keys)
@@ -2104,19 +2071,12 @@ has several key features:
              (setenv "HTSLIB_INCLUDE_DIR"
                      (string-append (assoc-ref inputs "htslib") "/include"))
              (setenv "LDFLAGS" "-lncurses")
-             (setenv "CFLAGS" "-D_CURSES_LIB=1")
-             #t))
+             (setenv "CFLAGS" "-D_CURSES_LIB=1")))
          (replace 'check
            (lambda* (#:key tests? #:allow-other-keys)
-             ;; Failing test removed in the next release.
+             ;; FIXME: These tests fail with "AttributeError: 'array.array'
+             ;; object has no attribute 'tostring'".
              (delete-file "tests/AlignmentFile_test.py")
-             ;; Add first subdirectory of "build" directory to PYTHONPATH.
-             (setenv "PYTHONPATH"
-                     (string-append
-                      (getenv "PYTHONPATH")
-                      ":" (getcwd) "/build/"
-                      (car (scandir "build"
-                                    (negate (cut string-prefix? "." <>))))))
              (when tests?
                ;; Step out of source dir so python does not import from CWD.
                (with-directory-excursion "tests"
@@ -2462,9 +2422,9 @@ gene predictor designed to work with assembled, aligned RNA-seq transcripts.")
           (lambda* (#:key inputs outputs #:allow-other-keys)
             ;; Make sure 'couger' runs with the correct PYTHONPATH.
             (let* ((out (assoc-ref outputs "out"))
-                   (path (getenv "PYTHONPATH")))
+                   (path (getenv "GUIX_PYTHONPATH")))
               (wrap-program (string-append out "/bin/couger")
-                `("PYTHONPATH" ":" prefix (,path))))
+                `("GUIX_PYTHONPATH" ":" prefix (,path))))
             #t)))))
     (inputs
      `(("python" ,python-2)
@@ -3140,19 +3100,14 @@ data and settings.")
              (substitute* "src/plasma/fasta.hpp"
                (("#define FASTA_HPP" line)
                 (string-append line "\n#include <random>")))
-             #t))
-         ;; FIXME: this is needed because we're using texlive-union, which
-         ;; doesn't handle fonts correctly.  It expects to be able to generate
-         ;; fonts in the home directory.
-         (add-before 'build 'setenv-HOME
-           (lambda _ (setenv "HOME" "/tmp") #t)))))
+             #t)))))
     (inputs
      `(("boost" ,boost)
        ("cairo" ,cairo)
        ("rmath-standalone" ,rmath-standalone)))
     (native-inputs
-     `(("texlive" ,(texlive-union (list texlive-fonts-cm
-                                        texlive-fonts-amsfonts
+     `(("texlive" ,(texlive-updmap.cfg (list texlive-cm
+                                        texlive-amsfonts
 
                                         texlive-latex-doi
                                         texlive-latex-examplep
@@ -4268,9 +4223,8 @@ manipulating HTS data.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "build.xml"
                (("\\$\\{htsjdk\\}/lib")
-                (string-append (assoc-ref inputs "java-htsjdk")
-                               "/share/java/htsjdk/")))
-             #t))
+                (search-input-directory inputs
+                                        "share/java/htsjdk")))))
          (add-after 'unpack 'make-test-target-independent
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "build.xml"
@@ -4425,9 +4379,7 @@ VCF.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "build.xml"
                (("\\$\\{lib\\}/apache-ant-1.8.2-bzip2.jar")
-                (string-append (assoc-ref inputs "ant")
-                               "/lib/ant.jar")))
-             #t))
+                (search-input-file inputs "/lib/ant.jar")))))
          (add-after 'unpack 'make-test-target-independent
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "build.xml"
@@ -4524,15 +4476,13 @@ VCF.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "build.xml"
                (("jbzip2-0.9.jar")
-                (string-append (assoc-ref inputs "java-jbzip2")
-                               "/share/java/jbzip2.jar"))
+                (search-input-file inputs "/share/java/jbzip2.jar"))
                (("sam-1.103.jar")
-                (string-append (assoc-ref inputs "java-picard-1.113")
-                               "/share/java/sam-1.112.jar"))
+                (search-input-file inputs
+                                   "/share/java/sam-1.112.jar"))
                (("cisd-jhdf5.jar")
-                (string-append (assoc-ref inputs "java-cisd-jhdf5")
-                               "/share/java/sis-jhdf5.jar")))
-             #t))
+                (search-input-file inputs
+                                   "/share/java/sis-jhdf5.jar")))))
          ;; There is no installation target
          (replace 'install
            (lambda* (#:key inputs outputs #:allow-other-keys)
@@ -5601,9 +5551,11 @@ predicts the locations of structural units in the sequences.")
          (add-after 'install 'wrap-programs
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((path (getenv "PATH"))
-                   (out (assoc-ref outputs "out")))
+                   (out (assoc-ref outputs "out"))
+                   (guile (search-input-file inputs "bin/guile")))
                (for-each (lambda (script)
-                           (wrap-script script `("PATH" ":" prefix (,path))))
+                           (wrap-script script #:guile guile
+                                        `("PATH" ":" prefix (,path))))
                          (cons (string-append out "/bin/proteinortho")
                                (find-files out "\\.(pl|py)$"))))
              #t)))))
@@ -5761,7 +5713,7 @@ partial genes, and identifies translation initiation sites.")
                       (string-append out "/bin/roary-create_pan_genome_plots.R"))
                      (r-site-lib (getenv "R_LIBS_SITE"))
                      (coreutils-path
-                      (string-append (assoc-ref inputs "coreutils") "/bin")))
+                      (dirname (search-input-file inputs "bin/chmod"))))
                  (wrap-program file
                    `("R_LIBS_SITE" ":" prefix
                      (,(string-append r-site-lib ":" out "/site-library/"))))
@@ -6644,25 +6596,6 @@ complexity samples.")
         (base32
          "148vcb7w2wr6a4w6vs2bsxanbqibxfk490zbcbg4m61s8669zdjx"))))
     (build-system python-build-system)
-    (arguments
-     '(#:phases
-       (modify-phases %standard-phases
-         ;; Tests must be run after installation, as the "screed" command does
-         ;; not exist right after building.
-         (delete 'check)
-         (add-after 'install 'check
-           (lambda* (#:key inputs outputs #:allow-other-keys)
-             (let ((out (assoc-ref outputs "out")))
-               (setenv "PYTHONPATH"
-                       (string-append out "/lib/python"
-                                      (string-take (string-take-right
-                                                    (assoc-ref inputs "python")
-                                                    5) 3)
-                                      "/site-packages:"
-                                      (getenv "PYTHONPATH")))
-               (setenv "PATH" (string-append out "/bin:" (getenv "PATH"))))
-             (invoke "python" "setup.py" "test")
-             #t)))))
     (native-inputs
      `(("python-pytest" ,python-pytest)
        ("python-pytest-cov" ,python-pytest-cov)
@@ -7789,10 +7722,11 @@ experience substantial biological insertions and deletions.")
          (delete 'configure)
          (delete 'build)
          (replace 'install
-           (lambda* (#:key outputs #:allow-other-keys)
+           (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
                     (bin (string-append out "/bin"))
-                    (scripts (find-files "." "prinseq.*.pl")))
+                    (scripts (find-files "." "prinseq.*.pl"))
+                    (guile (search-input-file "bin/guile")))
                (substitute* scripts
                  (("\"perl -pe")
                   (string-append "\"" (which "perl") " -pe")))
@@ -7800,6 +7734,7 @@ experience substantial biological insertions and deletions.")
                            (chmod file #o555)
                            (install-file file bin)
                            (wrap-script (string-append bin "/" (basename file))
+                                        #:guile guile
                                         `("PERL5LIB" ":" prefix
                                           (,(getenv "PERL5LIB")))))
                          scripts)))))))
@@ -8893,7 +8828,8 @@ matplotlib.use('Agg')
 " line)))
                ;; Make sure GESS has all modules in its path
                (wrap-script (string-append target "GESS.py")
-                 `("PYTHONPATH" ":" = (,target ,(getenv "PYTHONPATH"))))
+                 #:guile (search-input-file inputs "bin/guile")
+                 `("GUIX_PYTHONPATH" ":" = (,target ,(getenv "GUIX_PYTHONPATH"))))
                (mkdir-p bin)
                (symlink (string-append target "GESS.py")
                         (string-append bin "GESS.py"))
@@ -9234,8 +9170,8 @@ browser.")
                  (substitute* "bin/linux/fseq"
                    (("java") (which "java"))
                    (("\\$REALDIR/../lib/commons-cli-1.1.jar")
-                    (string-append (assoc-ref inputs "java-commons-cli")
-                                   "/share/java/commons-cli.jar"))
+                    (search-input-file inputs
+                                       "/share/java/commons-cli.jar"))
                    (("REALDIR=.*")
                     (string-append "REALDIR=" bin "\n")))
                  (install-file "README.txt" doc)
@@ -9622,17 +9558,18 @@ dependency like SeqAn.")
                (("#include \"jellyfish/config.h\"") ""))
              (substitute* "src/CMakeLists.txt"
                (("\\$\\{GAT_SOURCE_DIR\\}/external/install/include/jellyfish-2.2..")
-                (string-append (assoc-ref inputs "jellyfish")
-                               "/include/jellyfish-" ,(package-version jellyfish)))
+                (search-input-directory
+                 inputs
+                 (string-append "/include/jellyfish-" ,(package-version jellyfish))))
                (("\\$\\{GAT_SOURCE_DIR\\}/external/install/lib/libjellyfish-2.0.a")
-                (string-append (assoc-ref inputs "jellyfish")
-                               "/lib/libjellyfish-2.0.a"))
+                (search-input-file inputs
+                                   "/lib/libjellyfish-2.0.a"))
                (("\\$\\{GAT_SOURCE_DIR\\}/external/install/lib/libdivsufsort.a")
-                (string-append (assoc-ref inputs "libdivsufsort")
-                               "/lib/libdivsufsort.so"))
+                (search-input-file inputs
+                                   "/lib/libdivsufsort.so"))
                (("\\$\\{GAT_SOURCE_DIR\\}/external/install/lib/libdivsufsort64.a")
-                (string-append (assoc-ref inputs "libdivsufsort")
-                               "/lib/libdivsufsort64.so")))
+                (search-input-file inputs
+                                   "/lib/libdivsufsort64.so")))
              (substitute* "CMakeLists.txt"
                ;; Don't prefer static libs
                (("SET\\(CMAKE_FIND_LIBRARY_SUFFIXES.*") "")
@@ -9644,10 +9581,10 @@ dependency like SeqAn.")
 
              ;; Ensure that Eigen headers can be found
              (setenv "CPLUS_INCLUDE_PATH"
-                     (string-append (assoc-ref inputs "eigen")
-                                    "/include/eigen3:"
-                                    (or (getenv "CPLUS_INCLUDE_PATH") "")))
-             #t)))))
+                     (string-append (search-input-directory
+                                     inputs "/include/eigen3")
+                                    ":"
+                                    (or (getenv "CPLUS_INCLUDE_PATH") ""))))))))
     (inputs
      `(("boost" ,boost)
        ("eigen" ,eigen)
@@ -9880,11 +9817,7 @@ variational inference.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH"
-                     (string-append (getcwd) ":"
-                                    (getenv "PYTHONPATH")))
-             (invoke "pytest" "tests")
-             #t)))))
+             (invoke "pytest" "tests"))))))
     (propagated-inputs
      `(("python-h5py" ,python-h5py)
        ("python-numpy" ,python-numpy)
@@ -10473,8 +10406,8 @@ once.  This package provides tools to perform Drop-seq analyses.")
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "TZ" "UTC+1")
              (setenv "TZDIR"
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo")))))))
+                     (search-input-directory inputs
+                                             "share/zoneinfo")))))))
     (inputs
      `(("coreutils" ,coreutils)
        ("sed" ,sed)
@@ -10624,8 +10557,8 @@ in an easily configurable manner.")
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "TZ" "UTC+1")
              (setenv "TZDIR"
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo")))))))
+                     (search-input-directory inputs
+                                             "share/zoneinfo")))))))
     (native-inputs
      `(("tzdata" ,tzdata)))
     (inputs
@@ -11365,11 +11298,11 @@ conversions, region filtering, FASTA sequence extraction and more.")
              (lambda* (#:key outputs #:allow-other-keys)
                (let* ((out (assoc-ref outputs "out"))
                       (bin (string-append out "/bin"))
-                      (path (getenv "PYTHONPATH")))
+                      (path (getenv "GUIX_PYTHONPATH")))
                  (for-each (lambda (script)
                              (install-file script bin)
                              (wrap-program (string-append bin "/" script)
-                               `("PYTHONPATH" ":" prefix (,path))))
+                               `("GUIX_PYTHONPATH" ":" prefix (,path))))
                            '("cmp_bed.py"
                              "find_circ.py"
                              "maxlength.py"
@@ -11493,8 +11426,7 @@ implementation differs in these ways:
              (setenv "PYTHONPATH"
                      (string-append (getcwd) ":"
                                     (getenv "PYTHONPATH")))
-             (invoke "pytest")
-             #t)))))
+             (invoke "pytest"))))))
     (propagated-inputs
      `(("python-anndata" ,python-anndata)
        ("python-h5py" ,python-h5py)
@@ -12434,17 +12366,13 @@ datasets.")
          (add-after 'install 'link-tools
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((bin (string-append (assoc-ref outputs "out") "/bin/")))
-               (symlink (string-append (assoc-ref inputs "prodigal")
-                                       "/bin/prodigal")
+               (symlink (search-input-file inputs "/bin/prodigal")
                         (string-append bin "ngless-" ,version "-prodigal"))
-               (symlink (string-append (assoc-ref inputs "minimap2")
-                                       "/bin/minimap2")
+               (symlink (search-input-file inputs "/bin/minimap2")
                         (string-append bin "ngless-" ,version "-minimap2"))
-               (symlink (string-append (assoc-ref inputs "samtools")
-                                       "/bin/samtools")
+               (symlink (search-input-file inputs "/bin/samtools")
                         (string-append bin "ngless-" ,version "-samtools"))
-               (symlink (string-append (assoc-ref inputs "bwa")
-                                       "/bin/bwa")
+               (symlink (search-input-file inputs "/bin/bwa")
                         (string-append bin "ngless-" ,version "-bwa"))
                #t))))))
     (inputs
@@ -12547,10 +12475,10 @@ datasets.")
            (add-after 'install 'wrap-program
              (lambda* (#:key inputs outputs #:allow-other-keys)
                (let* ((out (assoc-ref outputs "out"))
-                      (path (getenv "PYTHONPATH")))
+                      (path (getenv "GUIX_PYTHONPATH")))
                  (wrap-program (string-append out
                                               "/share/filtlong/scripts/histogram.py")
-                   `("PYTHONPATH" ":" prefix (,path))))
+                   `("GUIX_PYTHONPATH" ":" prefix (,path))))
                #t))
            (add-before 'check 'patch-tests
              (lambda _
@@ -12606,10 +12534,9 @@ choosing which reads pass the filter.")
            (add-after 'unpack 'find-eigen
              (lambda* (#:key inputs #:allow-other-keys)
                (setenv "CPATH"
-                       (string-append (assoc-ref inputs "eigen")
-                                      "/include/eigen3:"
-                                      (or (getenv "CPATH") "")))
-               #t))
+                       (string-append
+                        (search-input-directory inputs "/include/eigen3")
+                        ":" (or (getenv "CPATH") "")))))
            (delete 'configure)
            (replace 'install
              (lambda* (#:key outputs #:allow-other-keys)
@@ -12622,16 +12549,18 @@ choosing which reads pass the filter.")
                            (find-files "scripts" ".*"))
                  #t)))
            (add-after 'install 'wrap-programs
-             (lambda* (#:key outputs #:allow-other-keys)
-               (let ((pythonpath (getenv "PYTHONPATH"))
+             (lambda* (#:key inputs outputs #:allow-other-keys)
+               (let ((pythonpath (getenv "GUIX_PYTHONPATH"))
                      (perl5lib (getenv "PERL5LIB"))
                      (scripts (string-append (assoc-ref outputs "out")
-                                             "/share/nanopolish/scripts")))
+                                             "/share/nanopolish/scripts"))
+                     (guile (search-input-file inputs "bin/guile")))
                  (for-each (lambda (file)
-                             (wrap-program file `("PYTHONPATH" ":" prefix (,pythonpath))))
+                             (wrap-program file `("GUIX_PYTHONPATH" ":" prefix (,pythonpath))))
                            (find-files scripts "\\.py"))
                  (for-each (lambda (file)
-                             (wrap-script file `("PERL5LIB" ":" prefix (,perl5lib))))
+                             (wrap-script file #:guile guile
+                                          `("PERL5LIB" ":" prefix (,perl5lib))))
                            (find-files scripts "\\.pl"))))))))
       (inputs
        `(("guile" ,guile-3.0) ; for wrappers
@@ -12845,7 +12774,7 @@ to an artifact/contaminant file.")
      `(("openmpi" ,openmpi)
        ("zlib" ,zlib)))
     (native-inputs
-     `(("texlive" ,(texlive-union (list texlive-latex-graphics
+     `(("texlive" ,(texlive-updmap.cfg (list texlive-latex-graphics
                                         texlive-latex-hyperref)))))
     (home-page "https://www.ebi.ac.uk/~zerbino/velvet/")
     (synopsis "Nucleic acid sequence assembler for very short reads")
diff --git a/gnu/packages/bison.scm b/gnu/packages/bison.scm
index 4c6da7d9b7..252cd56c15 100644
--- a/gnu/packages/bison.scm
+++ b/gnu/packages/bison.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2012, 2013, 2015, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
-;;; Copyright © 2019 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2019, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2020 B. Wilson <elaexuotee@wilsonb.com>
 ;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
 ;;;
@@ -33,7 +33,7 @@
 (define-public bison
   (package
     (name "bison")
-    (version "3.5.3")
+    (version "3.7.6")
     (source
      (origin
       (method url-fetch)
@@ -41,7 +41,7 @@
                           version ".tar.xz"))
       (sha256
        (base32
-        "1i57hbczvr8674z73775jxdd3y59qggs5lmfd60gmwm5i1gmpy1b"))))
+        "1kzkxrd3z4262k2sbxmyh9k5g5r2lakw0gv44l2hb4i1wbhqrmk7"))))
     (build-system gnu-build-system)
     (arguments
      '(;; Building in parallel on many-core systems may cause an error such as
@@ -68,17 +68,6 @@ simple tools through complex programming languages.
 Bison also provides an implementation of @command{yacc}, as specified by POSIX.")
     (license gpl3+)))
 
-(define-public bison-3.6
-  (package
-    (inherit bison)
-    (version "3.6.3")
-    (source
-     (origin
-      (method url-fetch)
-      (uri (string-append "mirror://gnu/bison/bison-" version ".tar.xz"))
-      (sha256
-       (base32 "0gdpnjh6ra9xa9vj6hzjdf0c04x4pjyy8vssm3qdb7fya4v7knq6"))))))
-
 (define-public bison-3.0
   (package
     (inherit bison)
diff --git a/gnu/packages/boost.scm b/gnu/packages/boost.scm
index e05a3c32fe..538d921c0b 100644
--- a/gnu/packages/boost.scm
+++ b/gnu/packages/boost.scm
@@ -3,17 +3,19 @@
 ;;; Copyright © 2014, 2015, 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2016 Eric Bavier <bavier@member.fsf.org>
-;;; Copyright © 2015, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017 Thomas Danckaert <post@thomasdanckaert.be>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2018, 2019, 2021 Ricardo Wurmus <rekado@elephly.net>
-;;; Copyright © 2018 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2018, 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2018, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2019, 2020 Giacomo Leidi <goodoldpaul@autistici.org>
 ;;; Copyright © 2020 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2020 Jonathan Brielmaier <jonathan.brielmaier@web.de>
+;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+;;; Copyright © 2021 Greg Hogan <code@greghogan.com>
 ;;; Copyright © 2021 Franck Pérignon <franck.perignon@univ-grenoble-alpes.fr>
 ;;; Copyright © 2021 Greg Hogan <code@greghogan.com>
 ;;;
@@ -65,21 +67,15 @@
 (define-public boost
   (package
     (name "boost")
-    (version "1.72.0")
+    (version "1.76.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://boostorg.jfrog.io/artifactory/main/release/"
                                   version "/source/boost_"
                                   (version-with-underscores version) ".tar.bz2"))
-              (patches
-               (list (boost-patch
-                      ;; 1.72.0 was released with a faulty coroutine submodule:
-                      ;; <https://github.com/boostorg/coroutine/issues/46>.
-                      "0001-revert-cease-dependence-on-range.patch" version
-                      "1zcqxzh56m1s635wqwk15j3zcs2gmjvjy2f0hid7i78s4pgm0yfs")))
               (sha256
                (base32
-                "08h7cv61fd0lzb4z50xanfqn0pdgvizjrpd1kcdgj725pisb5jar"))))
+                "0hcc661savk32hx65997p0ss1awj6ala4cmz4w7lbi42x6k7nfgh"))))
     (build-system gnu-build-system)
     (inputs `(("icu4c" ,icu4c)
               ("zlib" ,zlib)))
@@ -87,7 +83,7 @@
      `(("perl" ,perl)
        ,@(if (%current-target-system)
              '()
-             `(("python" ,python-wrapper)))
+             `(("python" ,python-minimal-wrapper)))
        ("tcsh" ,tcsh)))
     (arguments
      `(#:imported-modules ((guix build python-build-system)
@@ -128,8 +124,7 @@
                    (out (assoc-ref outputs "out")))
                (substitute* '("libs/config/configure"
                               "libs/spirit/classic/phoenix/test/runtest.sh"
-                              "tools/build/src/engine/execunix.cpp"
-                              "tools/build/src/engine/Jambase")
+                              "tools/build/src/engine/execunix.cpp")
                  (("/bin/sh") (which "sh")))
 
                (setenv "SHELL" (which "sh"))
@@ -144,13 +139,9 @@
                      '())
 
                ;; Change an #ifdef __MACH__ that really targets macOS.
-               ;; TODO: Inline this on the next rebuild cycle.
-               ,@(if (hurd-target?)
-                     '((substitute* "boost/test/utils/timer.hpp"
-                         (("defined\\(__MACH__\\)")
-                          "(defined __MACH__ && !defined __GNU__)"))
-                       #t)
-                     '())
+               (substitute* "boost/test/utils/timer.hpp"
+                 (("defined\\(__MACH__\\)")
+                  "(defined __MACH__ && !defined __GNU__)"))
 
                (invoke "./bootstrap.sh"
                        (string-append "--prefix=" out)
@@ -247,8 +238,7 @@ across a broad spectrum of applications.")
              (let ((gcc (assoc-ref (or native-inputs inputs) "gcc")))
                (setenv "CPLUS_INCLUDE_PATH"
                        (string-join
-                        (cons (string-append (assoc-ref inputs "libcxx")
-                                             "/include/c++/v1")
+                        (cons (search-input-directory inputs "/include/c++/v1")
                               ;; Hide GCC's C++ headers so that they do not interfere with
                               ;; the Clang headers.
                               (delete (string-append gcc "/include/c++")
@@ -262,7 +252,7 @@ across a broad spectrum of applications.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((icu (assoc-ref inputs "icu4c"))
                    (out (assoc-ref outputs "out"))
-                   (sh  (string-append (assoc-ref inputs "bash") "/bin/sh")))
+                   (sh  (search-input-file inputs "/bin/sh")))
                (substitute* '("libs/config/configure"
                               "libs/spirit/classic/phoenix/test/runtest.sh"
                               "tools/build/src/engine/execunix.c"
@@ -288,13 +278,6 @@ across a broad spectrum of applications.")
            (lambda* (#:key make-flags #:allow-other-keys)
              (apply invoke "./b2" "install" make-flags))))))))
 
-(define-public boost-with-python2
-  (package/inherit boost
-    (name "boost-python2")
-    (native-inputs
-     `(("python" ,python-2)
-       ,@(alist-delete "python" (package-native-inputs boost))))))
-
 (define-public boost-with-python3
   (deprecated-package "boost-with-python3" boost))
 
diff --git a/gnu/packages/bootloaders.scm b/gnu/packages/bootloaders.scm
index 742992a119..b4bf72224a 100644
--- a/gnu/packages/bootloaders.scm
+++ b/gnu/packages/bootloaders.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015, 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2016, 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
@@ -139,9 +139,9 @@
                      ;; Give the absolute file name of 'ckbcomp'.
                      (substitute* "util/grub-kbdcomp.in"
                        (("^ckbcomp ")
-                        (string-append (assoc-ref inputs "console-setup")
-                                       "/bin/ckbcomp ")))
-                     #t))
+                        (string-append
+                         (search-input-file inputs "/bin/ckbcomp")
+                         " ")))))
                   (add-after 'unpack 'set-freetype-variables
                     ;; These variables need to be set to the native versions
                     ;; of the dependencies because they are used to build
@@ -315,9 +315,8 @@ menu to select one of the installed operating systems.")
                  (lambda* (#:key inputs #:allow-other-keys)
                    (substitute* "grub-core/osdep/unix/platform.c"
                      (("efibootmgr")
-                      (string-append (assoc-ref inputs "efibootmgr")
-                                     "/sbin/efibootmgr")))
-                   #t))
+                      (search-input-file inputs
+                                         "/sbin/efibootmgr")))))
                (add-after 'patch-stuff 'use-absolute-mtools-path
                  (lambda* (#:key inputs #:allow-other-keys)
                    (let ((mtools (assoc-ref inputs "mtools")))
@@ -352,8 +351,8 @@ menu to select one of the installed operating systems.")
         `(modify-phases ,phases
            (add-after 'install 'install-non-efi
              (lambda* (#:key inputs outputs #:allow-other-keys)
-               (let ((input-dir (string-append (assoc-ref inputs "grub")
-                                               "/lib/grub"))
+               (let ((input-dir (search-input-directory inputs
+                                                        "/lib/grub"))
                      (output-dir (string-append (assoc-ref outputs "out")
                                                 "/lib/grub")))
                  (for-each
@@ -853,9 +852,8 @@ to Novena upstream, does not load u-boot.img from the first partition.")
            `(modify-phases ,phases
               (add-after 'unpack 'set-environment
                 (lambda* (#:key inputs #:allow-other-keys)
-                  (setenv "BL31" (string-append (assoc-ref inputs "firmware")
-                                                "/bl31.elf"))
-                  #t))
+                  (setenv "BL31"
+                          (search-input-file inputs "/bl31.elf"))))
               ;; Phases do not succeed on the bl31 ELF.
               (delete 'strip)
               (delete 'validate-runpath)))))
@@ -895,10 +893,8 @@ to Novena upstream, does not load u-boot.img from the first partition.")
           `(modify-phases ,phases
              (add-after 'unpack 'set-environment
                (lambda* (#:key inputs #:allow-other-keys)
-                 (let ((bl31 (string-append (assoc-ref inputs "firmware")
-                                            "/bl31.elf")))
-                   (setenv "BL31" bl31))
-                 #t))))))
+                 (let ((bl31 (search-input-file inputs "/bl31.elf")))
+                   (setenv "BL31" bl31))))))))
       (native-inputs
        `(("firmware" ,arm-trusted-firmware-rk3328)
          ,@(package-native-inputs base))))))
@@ -913,9 +909,7 @@ to Novena upstream, does not load u-boot.img from the first partition.")
            `(modify-phases ,phases
               (add-after 'unpack 'set-environment
                 (lambda* (#:key inputs #:allow-other-keys)
-                  (setenv "BL31" (string-append (assoc-ref inputs "firmware")
-                                                "/bl31.elf"))
-                  #t))
+                  (setenv "BL31" (search-input-file inputs "/bl31.elf"))))
               ;; Phases do not succeed on the bl31 ELF.
               (delete 'strip)
               (delete 'validate-runpath)))))
@@ -933,9 +927,8 @@ to Novena upstream, does not load u-boot.img from the first partition.")
            `(modify-phases ,phases
               (add-after 'patch-rockpro64-config 'set-environment
                 (lambda* (#:key inputs #:allow-other-keys)
-                  (setenv "BL31" (string-append (assoc-ref inputs "firmware")
-                                                "/bl31.elf"))
-                  #t))
+                  (setenv "BL31"
+                          (search-input-file inputs "/bl31.elf"))))
               ;; Phases do not succeed on the bl31 ELF.
               (delete 'strip)
               (delete 'validate-runpath)))))
@@ -955,9 +948,8 @@ to Novena upstream, does not load u-boot.img from the first partition.")
            `(modify-phases ,phases
               (add-after 'unpack 'set-environment
                 (lambda* (#:key inputs #:allow-other-keys)
-                  (setenv "BL31" (string-append (assoc-ref inputs "firmware")
-                                                "/bl31.elf"))
-                  #t))
+                  (setenv "BL31"
+                          (search-input-file inputs "/bl31.elf"))))
               ;; Phases do not succeed on the bl31 ELF.
               (delete 'strip)
               (delete 'validate-runpath)))))
diff --git a/gnu/packages/bootstrap.scm b/gnu/packages/bootstrap.scm
index c598cedc0a..5a8028a465 100644
--- a/gnu/packages/bootstrap.scm
+++ b/gnu/packages/bootstrap.scm
@@ -32,11 +32,13 @@
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system trivial)
   #:use-module ((guix store)
-                #:select (run-with-store add-to-store add-text-to-store))
+                #:select (%store-monad interned-file text-file store-lift))
   #:use-module ((guix derivations)
-                #:select (derivation derivation-input derivation->output-path))
-  #:use-module ((guix utils) #:select (gnu-triplet->nix-system))
+                #:select (raw-derivation derivation-input derivation->output-path))
+  #:use-module (guix utils)
+  #:use-module ((guix build utils) #:select (elf-file?))
   #:use-module ((guix gexp) #:select (lower-object))
+  #:use-module (guix monads)
   #:use-module (guix memoization)
   #:use-module (guix i18n)
   #:use-module (srfi srfi-1)
@@ -89,6 +91,15 @@
       ,(base32 "1j51gv08sfg277yxj73xd564wjq3f8xwd6s9rbcg8v9gms47m4cx"))
      ("xz"
       ,(base32 "1d779rwsrasphg5g3r37qppcqy3p7ay1jb1y83w7x4i3qsc7zjy2")))
+    ("powerpc-linux"
+     ("bash"
+      ,(base32 "0hwlw5lcyjzadprf5fm0cv4zb6jw667g9amnmhq0lbixasy7j72j"))
+     ("mkdir"
+      ,(base32 "12lfwh5p8pp06250wgi9mdvjv1jdfpd5xpmvfc0616aj0xqh09hp"))
+     ("tar"
+      ,(base32 "00sbmwl8qh6alxv9mw4hvj1j4yipwmw5mrw6qad8bi2pr7ya5386"))
+     ("xz"
+      ,(base32 "0hi47y6zh5zz137i59l5ibw92x6g54zn7ris1b1ym9rvavsasg7b")))
     ("armhf-linux"
      ("bash"
       ,(base32 "0s6f1s26g4dsrrkl39zblvwpxmbzi6n9mgqf6vxsqz42gik6bgyn"))
@@ -139,6 +150,7 @@
   ;; This is where the bootstrap executables come from.
   '("https://git.savannah.gnu.org/cgit/guix.git/plain/gnu/packages/bootstrap/"
     "https://alpha.gnu.org/gnu/guix/bootstrap/"
+    "http://flashner.co.il/guix/bootstrap/"
     "http://lilypond.org/janneke/guix/"))
 
 (define (bootstrap-executable-file-name system program)
@@ -146,6 +158,7 @@
   (match system
     ("powerpc64le-linux" (string-append system "/20210106/" program))
     ("i586-gnu" (string-append system "/20200326/" program))
+    ("powerpc-linux" (string-append system "/20200923/bin/" program))
     (_ (string-append system "/" program
                       "?id=44f07d1dc6806e97c4e9ee3e6be883cc59dc666e"))))
 
@@ -341,6 +354,8 @@ or false to signal an error."
                  (match system
                    ("aarch64-linux"
                     "/20170217/guile-2.0.14.tar.xz")
+                   ("powerpc-linux"
+                    "/20200923/guile-2.0.14.tar.xz")
                    ("armhf-linux"
                     "/20150101/guile-2.0.11.tar.xz")
                    ("i586-gnu"
@@ -366,7 +381,9 @@ or false to signal an error."
     ("aarch64-linux"
      (base32 "1giy2aprjmn5fp9c4s9r125fljw4wv6ixy5739i5bffw4jgr0f9r"))
     ("i586-gnu"
-     (base32 "0wgqpsmvg25rnqn49ap7kwd2qxccd8dr4lllzp7i3rjvgav27vac"))))
+     (base32 "0wgqpsmvg25rnqn49ap7kwd2qxccd8dr4lllzp7i3rjvgav27vac"))
+    ("powerpc-linux"
+     (base32 "1by2p7s27fbyjzfkcw8h65h4kkqh7d23kv4sgg5jppjn2qx7swq4"))))
 
 (define (bootstrap-guile-origin system)
   "Return an <origin> object for the Guile tarball of SYSTEM."
@@ -376,59 +393,58 @@ or false to signal an error."
               %bootstrap-base-urls))
     (sha256 (bootstrap-guile-hash system))))
 
-(define (download-bootstrap-guile store system)
+(define (download-bootstrap-guile system)
   "Return a derivation that downloads the bootstrap Guile tarball for SYSTEM."
   (let* ((path (bootstrap-guile-url-path system))
          (base (basename path))
          (urls (map (cut string-append <> path) %bootstrap-base-urls)))
-    (run-with-store store
-      (url-fetch urls 'sha256 (bootstrap-guile-hash system)
-                 #:system system))))
+    (url-fetch urls 'sha256 (bootstrap-guile-hash system)
+               #:system system)))
 
-(define* (raw-build store name inputs
+(define* (raw-build name inputs
                     #:key outputs system search-paths
                     #:allow-other-keys)
   (define (->store file)
-    (run-with-store store
-      (lower-object (bootstrap-executable file system)
-                    system)))
-
-  (let* ((tar   (->store "tar"))
-         (xz    (->store "xz"))
-         (mkdir (->store "mkdir"))
-         (bash  (->store "bash"))
-         (guile (download-bootstrap-guile store system))
-         ;; The following code, run by the bootstrap guile after it is
-         ;; unpacked, creates a wrapper for itself to set its load path.
-         ;; This replaces the previous non-portable method based on
-         ;; reading the /proc/self/exe symlink.
-         (make-guile-wrapper
-          '(begin
-             (use-modules (ice-9 match))
-             (match (command-line)
-               ((_ out bash)
-                (let ((bin-dir    (string-append out "/bin"))
-                      (guile      (string-append out "/bin/guile"))
-                      (guile-real (string-append out "/bin/.guile-real"))
-                      ;; We must avoid using a bare dollar sign in this code,
-                      ;; because it would be interpreted by the shell.
-                      (dollar     (string (integer->char 36))))
-                  (chmod bin-dir #o755)
-                  (rename-file guile guile-real)
-                  (call-with-output-file guile
-                    (lambda (p)
-                      (format p "\
+    (lower-object (bootstrap-executable file system)
+                  system))
+
+  (define (make-guile-wrapper bash guile-real)
+    ;; The following code, run by the bootstrap guile after it is unpacked,
+    ;; creates a wrapper for itself to set its load path.  This replaces the
+    ;; previous non-portable method based on reading the /proc/self/exe
+    ;; symlink.
+    '(begin
+       (use-modules (ice-9 match))
+       (match (command-line)
+         ((_ out bash)
+          (let ((bin-dir    (string-append out "/bin"))
+                (guile      (string-append out "/bin/guile"))
+                (guile-real (string-append out "/bin/.guile-real"))
+                ;; We must avoid using a bare dollar sign in this code,
+                ;; because it would be interpreted by the shell.
+                (dollar     (string (integer->char 36))))
+            (chmod bin-dir #o755)
+            (rename-file guile guile-real)
+            (call-with-output-file guile
+              (lambda (p)
+                (format p "\
 #!~a
 export GUILE_SYSTEM_PATH=~a/share/guile/2.0
 export GUILE_SYSTEM_COMPILED_PATH=~a/lib/guile/2.0/ccache
 exec -a \"~a0\" ~a \"~a@\"\n"
-                              bash out out dollar guile-real dollar)))
-                  (chmod guile   #o555)
-                  (chmod bin-dir #o555))))))
-         (builder
-          (add-text-to-store store
-                             "build-bootstrap-guile.sh"
-                             (format #f "
+                        bash out out dollar guile-real dollar)))
+            (chmod guile   #o555)
+            (chmod bin-dir #o555))))))
+
+  (mlet* %store-monad ((tar   (->store "tar"))
+                       (xz    (->store "xz"))
+                       (mkdir (->store "mkdir"))
+                       (bash  (->store "bash"))
+                       (guile (download-bootstrap-guile system))
+                       (wrapper -> (make-guile-wrapper bash guile))
+                       (builder
+                        (text-file "build-bootstrap-guile.sh"
+                                   (format #f "
 echo \"unpacking bootstrap Guile to '$out'...\"
 ~a $out
 cd $out
@@ -441,19 +457,19 @@ $out/bin/guile -c ~s $out ~a
 
 # Sanity check.
 $out/bin/guile --version~%"
-                                     (derivation->output-path mkdir)
-                                     (derivation->output-path xz)
-                                     (derivation->output-path tar)
-                                     (format #f "~s" make-guile-wrapper)
-                                     (derivation->output-path bash)))))
-    (derivation store name
-                (derivation->output-path bash) `(,builder)
-                #:system system
-                #:inputs (map derivation-input
-                              (list bash mkdir tar xz guile))
-                #:sources (list builder)
-                #:env-vars `(("GUILE_TARBALL"
-                              . ,(derivation->output-path guile))))))
+                                           (derivation->output-path mkdir)
+                                           (derivation->output-path xz)
+                                           (derivation->output-path tar)
+                                           (object->string wrapper)
+                                           (derivation->output-path bash)))))
+    (raw-derivation name
+                    (derivation->output-path bash) `(,builder)
+                    #:system system
+                    #:inputs (map derivation-input
+                                  (list bash mkdir tar xz guile))
+                    #:sources (list builder)
+                    #:env-vars `(("GUILE_TARBALL"
+                                  . ,(derivation->output-path guile))))))
 
 (define* (make-raw-bag name
                        #:key source inputs native-inputs outputs
@@ -500,6 +516,8 @@ $out/bin/guile --version~%"
                                              "/20210106/static-binaries-0-powerpc64le-linux-gnu.tar.xz")
                                             ("i586-gnu"
                                              "/20200326/static-binaries-0-i586-pc-gnu.tar.xz")
+                                            ("powerpc-linux"
+                                             "/20200923/static-binaries.tar.xz")
                                             (_
                                              "/20131110/static-binaries.tar.xz")))
                                      %bootstrap-base-urls))
@@ -523,6 +541,9 @@ $out/bin/guile --version~%"
                               ("i586-gnu"
                                (base32
                                 "17kllqnf3fg79gzy9ansgi801c46yh9c23h4d923plvb0nfm1cfn"))
+                              ("powerpc-linux"
+                               (base32
+                                "0kspxy0yczan2vlih6aa9hailr2inz000fqa0gn5x9d1fxxa5y8m"))
                               ("mips64el-linux"
                                (base32
                                 "072y4wyfsj1bs80r6vbybbafy8ya4vfy7qj25dklwk97m6g71753"))))))
@@ -573,6 +594,8 @@ $out/bin/guile --version~%"
                                              "/20210106/binutils-static-stripped-2.34-powerpc64le-linux-gnu.tar.xz")
                                             ("i586-gnu"
                                              "/20200326/binutils-static-stripped-2.34-i586-pc-gnu.tar.xz")
+                                            ("powerpc-linux"
+                                             "/20200923/binutils-2.35.1.tar.xz")
                                             (_
                                              "/20131110/binutils-2.23.2.tar.xz")))
                                      %bootstrap-base-urls))
@@ -596,6 +619,9 @@ $out/bin/guile --version~%"
                               ("i586-gnu"
                                (base32
                                 "11kykv1kmqc5wln57rs4klaqa13hm952smkc57qcsyss21kfjprs"))
+                              ("powerpc-linux"
+                               (base32
+                                "0asbg1c4avkrvh057mx0942xwddd136jni382zqsxzn79ls42yq8"))
                               ("mips64el-linux"
                                (base32
                                 "1x8kkhcxmfyzg1ddpz2pxs6fbdl6412r7x0nzbmi5n7mj8zw2gy7"))))))
@@ -653,6 +679,8 @@ $out/bin/guile --version~%"
                                        "/20210106/glibc-stripped-2.31-powerpc64le-linux-gnu.tar.xz")
                                       ("i586-gnu"
                                        "/20200326/glibc-stripped-2.31-i586-pc-gnu.tar.xz")
+                                      ("powerpc-linux"
+                                       "/20200923/glibc-2.32.tar.xz")
                                       (_
                                        "/20131110/glibc-2.18.tar.xz")))
                                %bootstrap-base-urls))
@@ -676,6 +704,9 @@ $out/bin/guile --version~%"
                         ("i586-gnu"
                          (base32
                           "14ddm10lpbas8bankmn5bcrlqvz1v5dnn1qjzxb19r57vd2w5952"))
+                        ("powerpc-linux"
+                         (base32
+                          "0smmssyjrlk5cvx49586smmk81gkwff0i6r91n4rir4jm6ba25sb"))
                         ("mips64el-linux"
                          (base32
                           "0k97a3whzx3apsi9n2cbsrr79ad6lh00klxph9hw4fqyp1abkdsg")))))))))
@@ -749,6 +780,8 @@ exec ~a/bin/.gcc-wrapped -B~a/lib \
                                         "/20210106/gcc-stripped-5.5.0-powerpc64le-linux-gnu.tar.xz")
                                        ("i586-gnu"
                                         "/20200326/gcc-stripped-5.5.0-i586-pc-gnu.tar.xz")
+                                       ("powerpc-linux"
+                                        "/20200923/gcc-5.5.0.tar.xz")
                                        (_
                                         "/20131110/gcc-4.8.2.tar.xz")))
                                 %bootstrap-base-urls))
@@ -772,14 +805,20 @@ exec ~a/bin/.gcc-wrapped -B~a/lib \
                          ("i586-gnu"
                           (base32
                            "1j2zc58wzil71a34h7c70sd68dmqvcscrw3rmn2whq79vd70zvv5"))
+                         ("powerpc-linux"
+                          (base32
+                           "1p7df3yixhm87dw5sccc6yn1i9db1r9hnmsg87wq5xi4rfmirq7w"))
                          ("mips64el-linux"
                           (base32
                            "1m5miqkyng45l745n0sfafdpjkqv9225xf44jqkygwsipj2cv9ks")))))))))
     (native-search-paths
      (list (search-path-specification
-            (variable "CPATH")
+            (variable "C_INCLUDE_PATH")
             (files '("include")))
            (search-path-specification
+            (variable "CPLUS_INCLUDE_PATH")
+            (files '("include/c++" "include")))
+           (search-path-specification
             (variable "LIBRARY_PATH")
             (files '("lib" "lib64")))))
     (synopsis "Bootstrap binaries of the GNU Compiler Collection")
diff --git a/gnu/packages/build-tools.scm b/gnu/packages/build-tools.scm
index d2fb9e05df..9798cd12b2 100644
--- a/gnu/packages/build-tools.scm
+++ b/gnu/packages/build-tools.scm
@@ -264,7 +264,7 @@ files and generates build instructions for the Ninja build system.")
 (define-public meson
   (package
     (name "meson")
-    (version "0.53.2")
+    (version "0.59.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/mesonbuild/meson/"
@@ -272,12 +272,11 @@ files and generates build instructions for the Ninja build system.")
                                   version ".tar.gz"))
               (sha256
                (base32
-                "07y2hh9dfn1m9g4bsy49nbn3vdmd0b2iwr8bxg19fhqq6c7q73ry"))))
+                "0xp45ihjkl90s4crzh9qmaajxq7invbv5k0yw3gl7dk4vycc4xp3"))))
     (build-system python-build-system)
     (arguments
-     `(;; FIXME: Tests require many additional inputs, a fix for the RUNPATH
-       ;; patch in meson-for-build, and patching many hard-coded file system
-       ;; locations in "run_unittests.py".
+     `(;; FIXME: Tests require many additional inputs and patching many
+       ;; hard-coded file system locations in "run_unittests.py".
        #:tests? #f
        #:phases (modify-phases %standard-phases
                   ;; Meson calls the various executables in out/bin through the
@@ -296,45 +295,6 @@ files}, are written in a custom domain-specific language (@dfn{DSL}) that
 resembles Python.")
     (license license:asl2.0)))
 
-;; Added temporarily for packages that need it.
-;; TODO: Remove when core-updates is merged.
-(define-public meson-0.55
-  (package
-    (inherit meson)
-    (version "0.55.1")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://github.com/mesonbuild/meson/"
-                                  "releases/download/" version  "/meson-"
-                                  version ".tar.gz"))
-              (sha256
-               (base32
-                "1070kjiirxxdfppmrhi3wsc6rykay1zlciqrzayjhjg0hkw42mrv"))))))
-
-(define-public meson-next
-  (package
-    (inherit meson)
-    (version "0.57.2")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://github.com/mesonbuild/meson/"
-                                  "releases/download/" version  "/meson-"
-                                  version ".tar.gz"))
-              (sha256
-               (base32
-                "1iac7p99zfgkznq4qlnkk7b8xwwlilcrnkf33sczm56yqnqyg0rs"))))))
-
-(define-public meson-for-build
-  (package
-    (inherit meson)
-    (name "meson-for-build")
-    (source (origin
-              (inherit (package-source meson))
-              (patches (search-patches "meson-for-build-rpath.patch"))))
-
-    ;; People should probably install "meson", not "meson-for-build".
-    (properties `((hidden? . #t)))))
-
 (define-public premake4
   (package
     (name "premake")
diff --git a/gnu/packages/calcurse.scm b/gnu/packages/calcurse.scm
index d807c15d68..b44f88fea9 100644
--- a/gnu/packages/calcurse.scm
+++ b/gnu/packages/calcurse.scm
@@ -64,8 +64,8 @@
                   (add-before 'check 'check-setup
                     (lambda* (#:key inputs #:allow-other-keys)
                       (setenv "TZDIR"   ; for test/ical-007.sh
-                              (string-append (assoc-ref inputs "tzdata")
-                                             "/share/zoneinfo")))))))
+                              (search-input-directory inputs
+                                                      "share/zoneinfo")))))))
     (home-page "https://www.calcurse.org")
     (synopsis "Text-based calendar and scheduling")
     (description
diff --git a/gnu/packages/calendar.scm b/gnu/packages/calendar.scm
index 0dff4fc362..c05a5eac0a 100644
--- a/gnu/packages/calendar.scm
+++ b/gnu/packages/calendar.scm
@@ -96,8 +96,8 @@
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "src/tz.cpp"
                  (("/usr/share/zoneinfo")
-                  (string-append (assoc-ref inputs "tzdata") "/share/zoneinfo")))
-               #t))
+                  (search-input-directory inputs
+                                          "share/zoneinfo")))))
            (replace 'check
              (lambda _
                ;; Disable test that requires checking timezone that
@@ -116,7 +116,7 @@ the <tz.h> library for handling time zones and leap seconds.")
 (define-public libical
   (package
     (name "libical")
-    (version "3.0.8")
+    (version "3.0.10")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -124,7 +124,7 @@ the <tz.h> library for handling time zones and leap seconds.")
                     version "/libical-" version ".tar.gz"))
               (sha256
                (base32
-                "0vr8s7hn8204lyc4ys5bs3j5qss4lmc9ffly2m1a59avyz5cmzh9"))))
+                "1d1nqcfilb4k8bc5x85fhnd26l1ski58wpk2nmds6mlxrzkb6czr"))))
     (build-system cmake-build-system)
     (arguments
      '(#:tests? #f ; test suite appears broken
diff --git a/gnu/packages/cdrom.scm b/gnu/packages/cdrom.scm
index 443d7455a7..de72cc0856 100644
--- a/gnu/packages/cdrom.scm
+++ b/gnu/packages/cdrom.scm
@@ -1043,7 +1043,7 @@ drive and disc (including CD-ROMs and DVD-ROMs).")
              (let ((prog (string-append (assoc-ref outputs "out")
                                         "/bin/cdemu")))
                (wrap-program prog
-                 `("PYTHONPATH" = (,(getenv "PYTHONPATH"))))
+                 `("GUIX_PYTHONPATH" = (,(getenv "GUIX_PYTHONPATH"))))
                #t))))))
     (home-page "https://cdemu.sourceforge.io/")
     (synopsis "Command-line client for controlling cdemu-daemon")
diff --git a/gnu/packages/cedille.scm b/gnu/packages/cedille.scm
index d3dd576323..decaf25605 100644
--- a/gnu/packages/cedille.scm
+++ b/gnu/packages/cedille.scm
@@ -89,8 +89,7 @@
          (add-after 'unpack 'copy-ial
            (lambda* (#:key inputs #:allow-other-keys)
              (copy-recursively
-              (string-append (assoc-ref inputs "agda-ial")
-                             "/include/agda/ial")
+              (search-input-directory inputs "/include/agda/ial")
               "ial")
              ;; Ambiguous module if main is included from ial
              (delete-file "ial/main.agda")
diff --git a/gnu/packages/certs.scm b/gnu/packages/certs.scm
index e15a9660df..37e3fa6786 100644
--- a/gnu/packages/certs.scm
+++ b/gnu/packages/certs.scm
@@ -4,6 +4,8 @@
 ;;; Copyright © 2016, 2017 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2021 Raghav Gururajan <rg@raghavgururajan.name>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -24,12 +26,14 @@
 (define-module (gnu packages certs)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
+  #:use-module (guix utils)
   #:use-module (guix download)
   #:use-module (guix git-download)
   #:use-module (guix build-system copy)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system trivial)
   #:use-module (gnu packages)
+  #:use-module (gnu packages nss)
   #:use-module (gnu packages curl)
   #:use-module (gnu packages python)
   #:use-module (gnu packages perl)
@@ -83,51 +87,43 @@ port forwarding to your local machine.")
       (license license:expat))))
 
 (define certdata2pem
-  (package
-    (name "certdata2pem")
-    (version "2013")
-    (source
-     (origin
-      (method url-fetch)
-        (uri
-          "http://pkgs.fedoraproject.org/cgit/ca-certificates.git/plain/certdata2pem.py?id=053dde8a2f5901e97028a58bf54e7d0ef8095a54")
-        (file-name "certdata2pem.py")
-        (sha256
-          (base32
-            "0zscrm41gnsf14zvlkxhy00h3dmgidyz645ldpda3y3vabnwv8dx"))))
-   (build-system trivial-build-system)
-   (inputs
-     `(("python" ,python-2)))
-   (arguments
-    `(#:modules ((guix build utils))
-      #:builder
-        (begin
-          (use-modules (guix build utils))
-          (let ((bin (string-append %output "/bin")))
-            (copy-file (assoc-ref %build-inputs "source") "certdata2pem.py")
-            (chmod "certdata2pem.py" #o555)
-            (substitute* "certdata2pem.py"
-              (("/usr/bin/python")
-               (string-append (assoc-ref %build-inputs "python")
-                              "/bin/python"))
-              ;; Use the file extension .pem instead of .crt.
-              (("crt") "pem"))
-            (mkdir-p bin)
-            (copy-file "certdata2pem.py"
-                       (string-append bin "/certdata2pem.py"))
-            #t))))
-   (synopsis "Python script to extract .pem data from certificate collection")
-   (description
-    "certdata2pem.py is a Python script to transform X.509 certificate
-\"source code\" as contained, for example, in the Mozilla sources, into
-.pem formatted certificates.")
-   (license license:gpl2+)
-   (home-page "http://pkgs.fedoraproject.org/cgit/ca-certificates.git/")))
+  (let ((revision "1")
+        (commit "4c576f350f44186d439179f63d5be19f710a73f5"))
+    (package
+      (name "certdata2pem")
+      (version "0.0.0")                   ;no version
+      (source (origin
+                (method url-fetch)
+                (uri (string-append
+                      "https://raw.githubusercontent.com/sabotage-linux/sabotage/"
+                      commit "/KEEP/certdata2pem.c"))
+                (sha256
+                 (base32
+                  "1rywp29q4l1cs2baplkbcravxqs4kw2cys4yifhfznbc210pskq6"))))
+      (build-system gnu-build-system)
+      (arguments
+       `(#:phases (modify-phases %standard-phases
+                    (delete 'configure)
+                    (replace 'build
+                      (lambda _
+                        (invoke ,(cc-for-target) "certdata2pem.c"
+                                "-o" "certdata2pem")))
+                    (delete 'check)     ;no test suite
+                    (replace 'install
+                      (lambda* (#:key outputs #:allow-other-keys)
+                        (let ((out (assoc-ref outputs "out")))
+                          (install-file "certdata2pem"
+                                        (string-append out "/bin"))))))))
+      (home-page "https://github.com/sabotage-linux/")
+      (synopsis "Utility to split TLS certificates data into multiple PEM files")
+      (description "This is a C version of the certdata2pem Python utility
+that was originally contributed to Debian.")
+      (license license:isc))))
 
 (define-public nss-certs
   (package
     (name "nss-certs")
-    (version "3.59")
+    (version "3.67")
     (source (origin
               (method url-fetch)
               (uri (let ((version-with-underscores
@@ -138,56 +134,35 @@ port forwarding to your local machine.")
                       "nss-" version ".tar.gz")))
               (sha256
                (base32
-                "096fs3z21r171q24ca3rq53p1389xmvqz1f2rpm7nlm8r9s82ag6"))))
+                "0zyfi27lbdz1bmk9dmsivcya4phx25rzlxqcnjab69yd928rlm7n"))))
     (build-system gnu-build-system)
     (outputs '("out"))
     (native-inputs
      `(("certdata2pem" ,certdata2pem)
-       ("openssl" ,openssl)
-       ("perl" ,perl)))                           ;for OpenSSL's 'c_rehash'
+       ("openssl" ,openssl)))
     (inputs '())
     (propagated-inputs '())
     (arguments
      `(#:modules ((guix build gnu-build-system)
                   (guix build utils)
                   (rnrs io ports)
-                  (srfi srfi-26)
-                  (ice-9 regex))
+                  (srfi srfi-26))
        #:phases
        (modify-phases
            (map (cut assq <> %standard-phases)
                 '(set-paths install-locale unpack))
          (add-after 'unpack 'install
            (lambda _
-             (let ((certsdir (string-append %output "/etc/ssl/certs/"))
-                   (trusted-rx (make-regexp "^# openssl-trust=[a-zA-Z]"
-                                            regexp/newline)))
-
-               (define (maybe-install-cert file)
-                 (let ((cert (call-with-input-file file get-string-all)))
-                   (when (regexp-exec trusted-rx cert)
-                     (call-with-output-file
-                         (string-append certsdir file)
-                       (cut display cert <>)))))
-
-               (mkdir-p certsdir)
+             (let ((certsdir (string-append %output "/etc/ssl/certs/")))
                (with-directory-excursion "nss/lib/ckfw/builtins/"
-                 ;; extract single certificates from blob
-                 (invoke "certdata2pem.py" "certdata.txt")
-                 ;; copy selected .pem files into the output
-                 (for-each maybe-install-cert
-                           (find-files "." ".*\\.pem")))
-
-               (with-directory-excursion certsdir
-                 ;; create symbolic links for and by openssl
-                 ;; Strangely, the call (system* "c_rehash" certsdir)
-                 ;; from inside the build dir fails with
-                 ;; "Usage error; try -help."
-                 ;; This looks like a bug in openssl-1.0.2, but we can also
-                 ;; switch into the target directory.
-                 (invoke "c_rehash" "."))
-               #t))))))
-
+                 (unless (file-exists? "blacklist.txt")
+                   (call-with-output-file "blacklist.txt" (const #t)))
+                 ;; Extract selected single certificates from blob.
+                 (invoke "certdata2pem")
+                 ;; Copy .crt files into the output.
+                 (for-each (cut install-file <> certsdir)
+                           (find-files "." ".*\\.crt$")))
+               (invoke "openssl" "rehash" certsdir)))))))
     (synopsis "CA certificates from Mozilla")
     (description
      "This package provides certificates for Certification Authorities (CA)
diff --git a/gnu/packages/check.scm b/gnu/packages/check.scm
index 637449351a..fbdc46cd4a 100644
--- a/gnu/packages/check.scm
+++ b/gnu/packages/check.scm
@@ -25,7 +25,7 @@
 ;;; Copyright © 2017, 2019 Kei Kebreau <kkebreau@posteo.net>
 ;;; Copyright © 2017 Nikita <nikita@n0.is>
 ;;; Copyright © 2015, 2017, 2018, 2020, 2021 Ricardo Wurmus <rekado@elephly.net>
-;;; Copyright © 2016, 2017, 2018, 2019, 2020, 2021 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2016, 2017, 2018, 2019, 2020, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2017, 2018, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Fis Trivial <ybbs.daans@hotmail.com>
 ;;; Copyright © 2019, 2021 Pierre Langlois <pierre.langlois@gmx.com>
@@ -35,7 +35,7 @@
 ;;; Copyright © 2020 Josh Marshall <joshua.r.marshall.1991@gmail.com>
 ;;; Copyright © 2020 Vinicius Monego <monego@posteo.net>
 ;;; Copyright © 2020 Tanguy Le Carrour <tanguy@bioneland.org>
-;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2021 Hugo Lecomte <hugo.lecomte@inria.fr>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -68,6 +68,7 @@
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-check)
   #:use-module (gnu packages python-build)
   #:use-module (gnu packages python-web)
   #:use-module (gnu packages python-xyz)
@@ -148,7 +149,27 @@ like Jasmine or Mocha.")
                           version "/check-" version ".tar.gz"))
       (sha256
        (base32
-        "02m25y9m46pb6n46s51av62kpd936lkfv3b13kfpckgvmh5lxpm8"))))
+        "02m25y9m46pb6n46s51av62kpd936lkfv3b13kfpckgvmh5lxpm8"))
+      (patches
+       (list
+        ;; This patch fixes some tests that would otherwise fail on
+        ;; powerpc64le-linux.  Without this patch, the tests make certain
+        ;; assumptions about floating point number precision that are not true
+        ;; on that platform.
+        ;;
+        ;; TODO: Remove this patch when updating to the next check release,
+        ;; since it will be included there.  See:
+        ;; https://debbugs.gnu.org/cgi/bugreport.cgi?bug=47698
+        (origin
+          (method url-fetch)
+          (uri
+           (string-append "https://github.com/libcheck/check/commit/"
+                          "4fbe702fa4f35bee8a90512f9f59d1441c4ae82e.patch"))
+          (file-name (string-append name
+                                    "-fix-test-precision-for-ppc.patch"))
+          (sha256
+           (base32
+            "04qg1p9afdd6453k18qskazrvscysdcjz9j6w4i6p5x4xyma19v6")))))))
     (build-system gnu-build-system)
     (home-page "https://libcheck.github.io/check/")
     (synopsis "Unit test framework for C")
@@ -920,39 +941,40 @@ standard library.")
 (define-public python-pytest
   (package
     (name "python-pytest")
-    (version "5.3.5")
+    (version "6.2.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "pytest" version))
        (sha256
         (base32
-         "139i9cjhrv5aici3skq8iihvfb3lq0d8xb5j7qycr2hlk8cfjpqd"))))
+         "01n3jny7m05r6g7gphbkj2xdms75ql93x69crd377hlvi6qikr36"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
        (modify-phases %standard-phases
          (replace 'check
            (lambda* (#:key (tests? #t) #:allow-other-keys)
+             (setenv "TERM" "dumb")     ;attempt disabling markup tests
              (if tests?
                  (invoke "pytest" "-vv" "-k"
                          (string-append
-                          ;; These tests involve the /usr directory, and fails.
-                          "not test_remove_dir_prefix"
-                          " and not test_argcomplete"
-                          ;; This test tries to override PYTHONPATH, and
-                          ;; subsequently fails to locate the test libraries.
-                          " and not test_collection"))
-                 (format #t "test suite not run~%"))
-             #t)))))
+                          ;; This test involve the /usr directory, and fails.
+                          " not test_argcomplete"
+                          ;; These test do not honor the isatty detection and
+                          ;; fail.
+                          " and not test_code_highlight"
+                          " and not test_color_yes"))
+                 (format #t "test suite not run~%")))))))
     (propagated-inputs
-     `(("python-atomicwrites" ,python-atomicwrites)
-       ("python-attrs" ,python-attrs-bootstrap)
+     `(("python-attrs" ,python-attrs-bootstrap)
+       ("python-iniconfig" ,python-iniconfig)
        ("python-more-itertools" ,python-more-itertools)
        ("python-packaging" ,python-packaging-bootstrap)
        ("python-pluggy" ,python-pluggy)
        ("python-py" ,python-py)
        ("python-six" ,python-six-bootstrap)
+       ("python-toml" ,python-toml)
        ("python-wcwidth" ,python-wcwidth)))
     (native-inputs
      `(;; Tests need the "regular" bash since 'bash-final' lacks `compgen`.
@@ -962,6 +984,7 @@ standard library.")
        ("python-mock" ,python-mock)
        ("python-pytest" ,python-pytest-bootstrap)
        ("python-setuptools-scm" ,python-setuptools-scm)
+       ("python-toml" ,python-toml)
        ("python-xmlschema" ,python-xmlschema)))
     (home-page "https://docs.pytest.org/en/latest/")
     (synopsis "Python testing library")
@@ -972,45 +995,6 @@ and many external plugins.")
     (license license:expat)
     (properties `((python2-variant . ,(delay python2-pytest))))))
 
-(define-public python-pytest-6
-  (package
-    (inherit (strip-python2-variant python-pytest))
-    (version "6.1.2")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "pytest" version))
-       (sha256
-        (base32
-         "0gl2sdm322vzmsh5k4f8kj9raiq2y7kdinnca4m45ifvii5fk9y0"))))
-    (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (replace 'check
-           (lambda* (#:key (tests? #t) #:allow-other-keys)
-             (setenv "TERM" "dumb")     ;attempt disabling markup tests
-             (if tests?
-                 (invoke "pytest" "-vv" "-k"
-                         (string-append
-                          ;; This test involve the /usr directory, and fails.
-                          " not test_argcomplete"
-                          ;; These test do not honor the isatty detection and
-                          ;; fail.
-                          " and not test_code_highlight"
-                          " and not test_color_yes"))
-                 (format #t "test suite not run~%"))
-             #t)))))
-    (propagated-inputs
-     (append (alist-delete "python-py"
-                           (package-propagated-inputs python-pytest))
-             `(("python-py" ,python-py-next))))
-    (native-inputs
-     (append (alist-delete "python-pytest"
-                           (package-native-inputs python-pytest))
-             `(("python-pytest" ,python-pytest-6-bootstrap)
-               ("python-toml" ,python-toml)
-               ("python-iniconfig" ,python-iniconfig))))))
-
 ;; Pytest 4.x are the last versions that support Python 2.
 (define-public python2-pytest
   (package
@@ -1051,19 +1035,12 @@ and many external plugins.")
   (package
     (inherit (strip-python2-variant python-pytest))
     (name "python-pytest-bootstrap")
-    (native-inputs `(("python-setuptools-scm" ,python-setuptools-scm)))
+    (native-inputs `(("python-iniconfig" ,python-iniconfig)
+                     ("python-setuptools-scm" ,python-setuptools-scm)
+                     ("python-toml" ,python-toml)))
     (arguments `(#:tests? #f))
     (properties `((python2-variant . ,(delay python2-pytest-bootstrap))))))
 
-(define-public python-pytest-6-bootstrap
-  (package
-    (inherit (strip-python2-variant python-pytest-6))
-    (name "python-pytest-bootstrap")
-    (arguments `(#:tests? #f))
-    (native-inputs
-     `(("python-setuptools-scm" ,python-setuptools-scm)
-       ("python-toml" ,python-toml)))))
-
 (define-public python2-pytest-bootstrap
   (hidden-package
    (package/inherit
@@ -1286,20 +1263,25 @@ same arguments.")
            #t))))
     (build-system python-build-system)
     (arguments
-     '(#:tests? #f)) ;FIXME: Some tests are failing.
-       ;; #:phases
-       ;; (modify-phases %standard-phases
-       ;;   (delete 'check)
-       ;;   (add-after 'install 'check
-       ;;     (lambda* (#:key inputs outputs #:allow-other-keys)
-       ;;       (add-installed-pythonpath inputs outputs)
-       ;;       (zero? (system* "py.test" "-v")))))
+     '(#:tests? #f ; Lots of tests fail.
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-setup-py
+           (lambda _
+             ;; Relax pytest requirement.
+             (substitute* "setup.py"
+               (("pytest>=6\\.0\\.0") "pytest"))))
+         (replace 'check
+            (lambda* (#:key tests? #:allow-other-keys)
+              (when tests?
+                (invoke "py.test" "-v")))))))
     (native-inputs
      `(("python-setuptools-scm" ,python-setuptools-scm)))
     (propagated-inputs
      `(("python-execnet" ,python-execnet)
        ("python-pytest" ,python-pytest)
-       ("python-py" ,python-py)))
+       ("python-py" ,python-py)
+       ("python-pytest-forked" ,python-pytest-forked)))
     (home-page
      "https://github.com/pytest-dev/pytest-xdist")
     (synopsis
@@ -1349,19 +1331,18 @@ timeout has been exceeded.")
 (define-public python-pytest-forked
   (package
     (name "python-pytest-forked")
-    (version "1.1.3")
+    (version "1.3.0")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "pytest-forked" version))
        (sha256
         (base32
-         "000i4q7my2fq4l49n8idx2c812dql97qv6qpm2vhrrn9v6g6j18q"))))
+         "1jip9qh115zcg1rn7irqx5qycb9k248d5imy86f566md01zaraba"))))
     (build-system python-build-system)
-    (propagated-inputs
-     `(("python-pytest" ,python-pytest)))
     (native-inputs
-     `(("python-setuptools-scm" ,python-setuptools-scm)))
+     `(("python-pytest" ,python-pytest)
+       ("python-setuptools-scm" ,python-setuptools-scm)))
     (home-page
      "https://github.com/pytest-dev/pytest-forked")
     (synopsis
@@ -1577,7 +1558,12 @@ protocol.")))
                (base32
                 "1vxj29bzz3rd4pcy51d05wng9q9dh4jq6wx92yklsm7i6h1ddw7w"))))
     (build-system python-build-system)
-    (arguments `(#:tests? #f))
+    (arguments
+      `(#:tests? #f
+        #:phases
+         (modify-phases %standard-phases
+           ;; Package is not loadable on its own at this stage.
+           (delete 'sanity-check))))
     (propagated-inputs
      `(("python-pbr-minimal" ,python-pbr-minimal)
        ("python-six" ,python-six)))
@@ -1682,13 +1668,13 @@ executed.")
 (define-public python-pytest-asyncio
   (package
     (name "python-pytest-asyncio")
-    (version "0.10.0")
+    (version "0.15.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "pytest-asyncio" version))
        (sha256
-        (base32 "1bysy4nii13bm7h345wxf8fxcjhab7l374pqdv7vwv3izl053b4z"))))
+        (base32 "0vrzsrg3j1cfd57m0b3r5xf87rslgcs42jya346mdg9bc6wwwr15"))))
     (build-system python-build-system)
     (native-inputs
      `(("python-coverage" ,python-coverage)
@@ -1949,13 +1935,13 @@ instantly.")
 (define-public python-hypothesis
   (package
     (name "python-hypothesis")
-    (version "5.4.1")
+    (version "6.0.2")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "hypothesis" version))
               (sha256
                (base32
-                "0zn09bn6hadk4vxl6jy8bkjr5fz8mrhin3z46w7pq5qgbaycr89p"))))
+                "0wj7ip779naf2n076nylf2gi0sjz68z1ir9d9r2rgs7br18naqdf"))))
     (build-system python-build-system)
     (arguments
      ;; XXX: Tests are not distributed with the PyPI archive.
@@ -1972,18 +1958,6 @@ seamlessly into your existing Python unit testing work flow.")
     (license license:mpl2.0)
     (properties `((python2-variant . ,(delay python2-hypothesis))))))
 
-(define-public python-hypothesis-5.23
-  (package
-    (inherit python-hypothesis)
-    (version "5.23.0")
-    (source (origin
-              (method url-fetch)
-              (uri (pypi-uri "hypothesis" version))
-              (sha256
-               (base32
-                "0sy1v6nyxg4rjcf3rlr8nalb7wqd9nccpb2lzkchbj5an13ysf1h"))))
-    (home-page "https://github.com/HypothesisWorks/hypothesis")))
-
 ;; This is the last version of Hypothesis that supports Python 2.
 (define-public python2-hypothesis
   (let ((hypothesis (package-with-python2
@@ -2003,19 +1977,19 @@ seamlessly into your existing Python unit testing work flow.")
 (define-public python-hypothesmith
   (package
     (name "python-hypothesmith")
-    (version "0.1.2")
+    (version "0.1.8")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "hypothesmith" version))
        (sha256
         (base32
-         "09331sspknv459xcyn1k0lx5flqlc6gmnwp9370pfvg4kg1zmss6"))))
+         "02j101m5grjrbvrgjap17jsxd1hgawkylmyswcn33vf42mxh9zzr"))))
     (build-system python-build-system)
     (propagated-inputs
-     `(("python-hypothesis" ,python-hypothesis-5.23)
+     `(("python-hypothesis" ,python-hypothesis)
        ("python-lark-parser" ,python-lark-parser)
-       ("python-libcst" ,python-libcst)))
+       ("python-libcst" ,python-libcst-minimal)))
     (home-page "https://github.com/Zac-HD/hypothesmith")
     (synopsis "Strategies for generating Python programs")
     (description
@@ -2065,7 +2039,18 @@ failures.")
                 "06032agzhw1i9d9qlhfblnl3dw5hcyxhagn7b120zhrszbjzfbh3"))))
     (build-system python-build-system)
     (arguments
-     `(#:tests? #f)) ; Fails with recent pytest and pep8. See upstream issues #8 and #12.
+     `(#:tests? #f ; Fails with recent pytest and pep8. See upstream issues #8 and #12.
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-dependencies
+           (lambda _
+             (substitute* "setup.py"
+               (("'pytest-cache', ") ""))))  ; Included in recent pytest
+         (replace 'check
+            (lambda* (#:key tests? inputs outputs #:allow-other-keys)
+              (when tests?
+                (add-installed-pythonpath inputs outputs)
+                (invoke "pytest" "-v")))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)))
     (propagated-inputs
@@ -2150,7 +2135,7 @@ statements in the module it tests.")
 (define-public python-pylint
   (package
     (name "python-pylint")
-    (version "2.5.3")
+    (version "2.6.0")
     (source
      (origin
        (method git-fetch)
@@ -2159,13 +2144,26 @@ statements in the module it tests.")
              (commit (string-append "pylint-" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "04cgbh2z1mygar63plzziyz34yg6bdr4i0g63jp256fgnqwb1bi3"))))
+        (base32 "0ws3dz3wm49brnhhfm7v75zq202pwlwfbi3njdd69aqxq912x15z"))))
     (build-system python-build-system)
-    ;; FIXME: Tests are failing since version 2.4.3, see:
-    ;; https://github.com/PyCQA/pylint/issues/3198.
-    (arguments '(#:tests? #f))
+    (arguments
+     `(#:tests? #t
+       #:phases
+       (modify-phases %standard-phases
+         (replace 'check
+           (lambda* (#:key tests? #:allow-other-keys)
+             (when tests?
+               ;; The following failing tests are skipped (see:
+               ;; https://github.com/PyCQA/pylint/issues/4068).
+               (invoke "pytest" "-k"
+                       (string-append
+                        "not unused_typing_imports "
+                        "and not star_needs_assignment_target_py35 "
+                        "and not regression_property_no_member_2641 "
+                        "and not missing_kwoa_py3"))))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)
+       ("python-pytest-benchmark" ,python-pytest-benchmark)
        ("python-pytest-runner" ,python-pytest-runner)
        ("python-tox" ,python-tox)))
     (propagated-inputs
@@ -2361,20 +2359,10 @@ backported from Python 2.7 for Python 2.4+.")
        ("python-pyhamcrest" ,python-pyhamcrest)
        ("python-pytest" ,python-pytest)))
     (propagated-inputs
-     `(("python-importlib-metadata" ,python-importlib-metadata)
-       ("python-six" ,python-six)
-       ("python-parse" ,python-parse)
+     `(("python-parse" ,python-parse)
        ("python-parse-type" ,python-parse-type)))
     (arguments
-     '(#:test-target "behave_test"
-       #:phases
-       (modify-phases %standard-phases
-         (add-before 'check 'fix-library-loading
-           (lambda _
-             ;; Otherwise, tests fail with no module named 'path'
-             (setenv "PYTHONPATH" (string-append (getenv "PYTHONPATH") ":"
-                                                 (getcwd) "/tasks/_vendor"))
-             #t)))))
+     '(#:test-target "behave_test"))
     (home-page "https://github.com/behave/behave")
     (synopsis "Python behavior-driven development")
     (description
@@ -2613,48 +2601,35 @@ retried.")
   (package-with-python2 python-flaky))
 
 (define-public python-pyhamcrest
-  ;; The latest release was in 2016 and its test suite does not work with recent
-  ;; versions of Pytest.  Just take the master branch for now, which seems stable.
-  (let ((commit "25fdc5f00bdf3084335353bc9247253098ec4cf2")
-        (revision "0"))
-    (package
-      (name "python-pyhamcrest")
-      (version (git-version "1.9.0" revision commit))
-      (source (origin
-                ;; Tests not distributed from pypi release.
-                (method git-fetch)
-                (uri (git-reference
-                      (url "https://github.com/hamcrest/PyHamcrest")
-                      (commit commit)))
-                (file-name (git-file-name name version))
-                (sha256
-                 (base32
-                  "1miqmhhi68vaix8sqc1lvpvbm27bacffxh5anm5cbfsvk7g9n6f3"))))
-      (native-inputs                    ;all native inputs are for tests
-       `(("python-pytest-cov" ,python-pytest-cov)
-         ("python-mock" ,python-mock)
-         ("python-pytest" ,python-pytest)
-         ("python-hypothesis" ,python-hypothesis)))
-      (propagated-inputs
-       `(("python-six" ,python-six)))
-      (build-system python-build-system)
-      (arguments
-       `(#:phases (modify-phases %standard-phases
-                    (replace 'check
-                      (lambda _
-                        (setenv "PYTHONPATH"
-                                (string-append "build/lib:"
-                                               (getenv "PYTHONPATH")))
-                        (invoke "pytest" "-vv"))))))
-      (home-page "http://hamcrest.org/")
-      (synopsis "Hamcrest matchers for Python")
-      (description
-       "PyHamcrest is a framework for writing matcher objects,
- allowing you to declaratively define \"match\" rules.")
-      (license license:bsd-3))))
-
-(define-public python2-pyhamcrest
-  (package-with-python2 python-pyhamcrest))
+  (package
+    (name "python-pyhamcrest")
+    (version "2.0.2")
+    (source (origin
+              ;; Tests not distributed from pypi release.
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/hamcrest/PyHamcrest")
+                    (commit (string-append "V" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "05kdzlhs2kvj82pfca13qszszcj6dyrk4b9pbr46x06sq2s4qyls"))))
+    (native-inputs                      ;all native inputs are for tests
+     `(("python-pytest-cov" ,python-pytest-cov)
+       ("python-mock" ,python-mock)
+       ("python-pytest" ,python-pytest)
+       ("python-hypothesis" ,python-hypothesis)))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (replace 'check
+                    (lambda _
+                      (invoke "pytest" "-vv"))))))
+    (home-page "http://hamcrest.org/")
+    (synopsis "Hamcrest matchers for Python")
+    (description "PyHamcrest is a framework for writing matcher objects,
+allowing you to declaratively define \"match\" rules.")
+    (license license:bsd-3)))
 
 (define-public unittest-cpp
   (package
@@ -2684,7 +2659,7 @@ portable to just about any platform.")
 (define-public libfaketime
   (package
     (name "libfaketime")
-    (version "0.9.8")
+    (version "0.9.9")
     (home-page "https://github.com/wolfcw/libfaketime")
     (source (origin
               (method git-fetch)
@@ -2693,35 +2668,35 @@ portable to just about any platform.")
                     (commit (string-append "v" version))))
               (sha256
                (base32
-                "1mfdl82ppgbdvy1ny8mb7xii7p0g7awvn4bn36jb8v4r545slmjc"))
+                "1gi1xciqga5hl2xlk7rc3j8wy47ag97pi7ngmdl6ny1d11b2wn1z"))
               (file-name (git-file-name name version))))
     (build-system gnu-build-system)
     (arguments
-     '(#:phases (modify-phases %standard-phases
+     `(#:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'embed-date-reference
+                    (lambda* (#:key inputs #:allow-other-keys)
+                      (let ((coreutils (assoc-ref inputs "coreutils")))
+                        (substitute* "src/faketime.c"
+                          (("\"date\"")
+                           (string-append "\"" coreutils "/bin/date\""))))))
                   (replace 'configure
                     (lambda* (#:key outputs #:allow-other-keys)
                       (let ((out (assoc-ref outputs "out")))
-                        (setenv "CC" "gcc")
+                        (setenv "CC" ,(cc-for-target))
                         (setenv "PREFIX" out)
 
                         ;; XXX: Without this flag, the CLOCK_REALTIME test hangs
                         ;; indefinitely.  See README.packagers for more information.
-                        ;; Try removing this for future versions of libfaketime.
-                        (setenv "FAKETIME_COMPILE_CFLAGS" "-DFORCE_MONOTONIC_FIX")
-
-                        #t)))
+                        (setenv "FAKETIME_COMPILE_CFLAGS" "-DFORCE_MONOTONIC_FIX"))))
                   (add-before 'check 'pre-check
                     (lambda _
                       (substitute* "test/functests/test_exclude_mono.sh"
-                        (("/bin/bash") (which "bash")))
-
-                      ;; Do not fail due to use of 'ftime', which was deprecated in
-                      ;; glibc 2.31.  Remove this for later versions of libfaketime.
-                      (setenv "FAKETIME_COMPILE_CFLAGS" "-Wno-deprecated-declarations")
-                      #t)))
+                        (("/bin/bash") (which "bash"))))))
        #:test-target "test"))
     (native-inputs
      `(("perl" ,perl)))                           ;for tests
+    (inputs
+     `(("coreutils" ,coreutils)))
     (synopsis "Fake the system time for single applications")
     (description
      "The libfaketime library allows users to modify the system time that an
@@ -2824,13 +2799,21 @@ grew out of the @dfn{Vc} project.")
     (arguments
      `(#:phases
        (modify-phases %standard-phases
+         (add-after 'unpack 'patch-testsuite
+           (lambda _
+             ;; Time difference is larger than expected.
+             (substitute* "pyfakefs/tests/fake_filesystem_unittest_test.py"
+               (("(\\s+)def test_copy_real_file" all indent)
+                (string-append
+                  indent
+                  "@unittest.skip('disabled by guix')\n"
+                  all)))))
          ;; The default test suite does not run these extra tests.
          (add-after 'check 'check-pytest-plugin
            (lambda _
              (invoke
               "python" "-m" "pytest"
-              "pyfakefs/pytest_tests/pytest_plugin_test.py")
-             #t)))))
+              "pyfakefs/pytest_tests/pytest_plugin_test.py"))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)))
     (build-system python-build-system)
diff --git a/gnu/packages/chemistry.scm b/gnu/packages/chemistry.scm
index a52ecf69f7..4b46052f99 100644
--- a/gnu/packages/chemistry.scm
+++ b/gnu/packages/chemistry.scm
@@ -192,8 +192,7 @@ only with Python 2 and NumPy < 1.9.")
                     (include-dir (string-append out "/include/inchi"))
                     (lib (string-append out "/lib/inchi"))
                     (inchi-doc (assoc-ref inputs "inchi-doc"))
-                    (unzip (string-append (assoc-ref inputs "unzip")
-                                          "/bin/unzip")))
+                    (unzip (search-input-file inputs "/bin/unzip")))
                (chdir "../../..")
                ;; Install binary.
                (with-directory-excursion "INCHI_EXE/bin/Linux"
diff --git a/gnu/packages/chez.scm b/gnu/packages/chez.scm
index 1cd2cde71b..a886e59130 100644
--- a/gnu/packages/chez.scm
+++ b/gnu/packages/chez.scm
@@ -114,8 +114,8 @@
        ;; for docs
        ("stex" ,stex)
        ("xorg-rgb" ,xorg-rgb)
-       ("texlive" ,(texlive-union (list texlive-latex-oberdiek
-                                        texlive-generic-epsf)))
+       ("texlive" ,(texlive-updmap.cfg (list texlive-latex-oberdiek
+                                             texlive-generic-epsf)))
        ("ghostscript" ,ghostscript)
        ("netpbm" ,netpbm)))
     (native-search-paths
@@ -316,13 +316,13 @@ and 32-bit PowerPC architectures.")
       (native-inputs
        `(("chez-scheme" ,chez-scheme)
          ("ghostscript" ,ghostscript)
-         ("texlive" ,(texlive-union (list texlive-latex-oberdiek
+         ("texlive" ,(texlive-updmap.cfg (list texlive-latex-oberdiek
                                           texlive-generic-epsf
                                           texlive-metapost
                                           texlive-fonts-charter
-                                          texlive-generic-pdftex
-                                          texlive-context-base
-                                          texlive-fonts-cm
+                                          texlive-pdftex
+                                          texlive-context
+                                          texlive-cm
                                           texlive-tex-plain)))))
       (arguments
        `(#:make-flags (list (string-append "PREFIX=" %output)
@@ -333,12 +333,6 @@ and 32-bit PowerPC architectures.")
                       #:tests? #f        ; no tests
                       #:phases
                       (modify-phases %standard-phases
-                        (add-before 'build 'set-HOME
-                          (lambda _
-                            ;; FIXME: texlive-union does not find the built
-                            ;; metafonts, so it tries to generate them in HOME.
-                            (setenv "HOME" "/tmp")
-                            #t))
                         ;; This package has a custom "bootstrap" script that
                         ;; is meant to be run from the Makefile.
                         (delete 'bootstrap)
@@ -381,7 +375,7 @@ programming in Scheme.")
       (native-inputs
        `(("chez-scheme" ,chez-scheme)
          ("chez-web" ,chez-web)
-         ("texlive" ,(texlive-union (list texlive-generic-pdftex)))))
+         ("texlive" ,(texlive-updmap.cfg (list texlive-pdftex)))))
       (arguments
        `(#:tests? #f              ; no tests
          #:phases
diff --git a/gnu/packages/ci.scm b/gnu/packages/ci.scm
index 0bcde0fad5..3a2e6df207 100644
--- a/gnu/packages/ci.scm
+++ b/gnu/packages/ci.scm
@@ -168,7 +168,7 @@
                    `("GUILE_LOAD_COMPILED_PATH" ":" prefix (,objs)))
                  #t))))))
       (inputs
-       `(("guile" ,guile-3.0/libgc-7)
+       `(("guile" ,guile-3.0-latest)
          ("guile-avahi" ,guile-avahi)
          ("guile-fibers" ,guile-fibers)
          ("guile-gcrypt" ,guile-gcrypt)
diff --git a/gnu/packages/cmake.scm b/gnu/packages/cmake.scm
index df8885b4dd..f76ee3ff3a 100644
--- a/gnu/packages/cmake.scm
+++ b/gnu/packages/cmake.scm
@@ -5,7 +5,7 @@
 ;;; Copyright © 2014 Ian Denhardt <ian@zenhack.net>
 ;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com>
 ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
-;;; Copyright © 2017, 2018, 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2017, 2018, 2020, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2018, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2019, 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
@@ -110,7 +110,6 @@ using the CMake build system.")
               "Source/cmGlobalXCodeGenerator.cxx"
               "Source/cmLocalUnixMakefileGenerator3.cxx"
               "Source/cmExecProgramCommand.cxx"
-              "Utilities/Release/release_cmake.cmake"
               "Tests/CMakeLists.txt"
               "Tests/RunCMake/File_Generate/RunCMakeTest.cmake")
           (("/bin/sh") (which "sh")))
@@ -123,20 +122,24 @@ using the CMake build system.")
     ;; This test requires network access.
     "CTestTestUpload"
     ;; This test requires 'ldconfig' which is not available in Guix.
-    "RunCMake.install"))
+    "RunCMake.install"
+    ;; This test fails for unknown reason.
+    "RunCMake.file-GET_RUNTIME_DEPENDENCIES"))
 
 (define %preserved-third-party-files
   '(;; 'Source/cm_getdate.c' includes archive_getdate.c wholesale, so it must
     ;; be available along with the required headers.
     "Utilities/cmlibarchive/libarchive/archive_getdate.c"
-    "Utilities/cmlibarchive/libarchive/archive_getdate.h"))
+    "Utilities/cmlibarchive/libarchive/archive_getdate.h"
+    ;; CMake header wrappers.
+    "Utilities/cm3p"))
 
 ;;; The "bootstrap" CMake.  It is used to build 'cmake-minimal' below, as well
 ;;; as any dependencies that need cmake-build-system.
 (define-public cmake-bootstrap
   (package
     (name "cmake-bootstrap")
-    (version "3.16.5")
+    (version "3.20.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://cmake.org/files/v"
@@ -144,49 +147,7 @@ using the CMake build system.")
                                   "/cmake-" version ".tar.gz"))
               (sha256
                (base32
-                "1z4bb8z6b4dvq5hrvajrf1hyybqay3xybyimf71w1jgcp180nxjz"))
-              (modules '((guix build utils)
-                         (ice-9 ftw)))
-              (snippet
-               `(begin
-                  ;; CMake bundles its dependencies in the "Utilities" directory.
-                  ;; Delete those to ensure the system libraries are used.
-                  (define preserved-files
-                    '(,@%preserved-third-party-files
-                      ;; Use the bundled JsonCpp during bootstrap to work around
-                      ;; a circular dependency.  TODO: JsonCpp can be built with
-                      ;; Meson instead of CMake, but meson-build-system currently
-                      ;; does not support cross-compilation.
-                      "Utilities/cmjsoncpp"
-                      ;; LibUV is required to bootstrap the initial build system.
-                      "Utilities/cmlibuv"))
-
-                  (file-system-fold (lambda (dir stat result)         ;enter?
-                                      (or (string=? "Utilities" dir)  ;init
-                                          ;; The bundled dependencies are
-                                          ;; distinguished by having a "cm"
-                                          ;; prefix to their upstream names.
-                                          (and (string-prefix? "Utilities/cm" dir)
-                                               (not (member dir preserved-files)))))
-                                    (lambda (file stat result)        ;leaf
-                                      (unless (or (member file preserved-files)
-                                                  ;; Preserve top-level files.
-                                                  (string=? "Utilities"
-                                                            (dirname file)))
-                                        (delete-file file)))
-                                    (const #t)                        ;down
-                                    (lambda (dir stat result)         ;up
-                                      (when (equal? (scandir dir) '("." ".."))
-                                        (rmdir dir)))
-                                    (const #t)                        ;skip
-                                    (lambda (file stat errno result)
-                                      (format (current-error-port)
-                                              "warning: failed to delete ~a: ~a~%"
-                                              file (strerror errno)))
-                                    #t
-                                    "Utilities"
-                                    lstat)
-                  #t))
+                "0kjlb7sxbwg8z4027c3jjcmyjh9d36p0r9d4nqxynyaijz5nxkxf"))
               (patches (search-patches "cmake-curl-certificates.patch"))))
     (build-system gnu-build-system)
     (arguments
@@ -242,14 +203,13 @@ using the CMake build system.")
              (apply invoke "./configure" configure-flags))))))
     (inputs
      `(("bzip2" ,bzip2)
-       ("curl" ,curl-minimal)
+       ("curl" ,curl)
        ("expat" ,expat)
        ("file" ,file)
        ("libarchive" ,libarchive)
        ,@(if (hurd-target?)
              '()
              `(("libuv" ,libuv)))       ;not supported on the Hurd
-       ("ncurses" ,ncurses)             ;required for ccmake
        ("rhash" ,rhash)
        ("zlib" ,zlib)))
     (native-search-paths
@@ -287,17 +247,41 @@ and workspaces that can be used in the compiler environment of your choice.")
     (name "cmake-minimal")
     (source (origin
               (inherit (package-source cmake-bootstrap))
+              ;; Purge CMakes bundled dependencies as they are no longer needed.
+              (modules '((ice-9 ftw)))
               (snippet
-               (match (origin-snippet (package-source cmake-bootstrap))
-                 ((_ _ exp ...)
-                  ;; Now we can delete the remaining software bundles.
-                  (append `(begin
-                             (define preserved-files ',%preserved-third-party-files))
-                          exp))))))
+               `(begin
+                  (define preserved-files ',%preserved-third-party-files)
+
+                  (file-system-fold (lambda (dir stat result)         ;enter?
+                                      (or (string=? "Utilities" dir)  ;init
+                                          ;; The bundled dependencies are
+                                          ;; distinguished by having a "cm"
+                                          ;; prefix to their upstream names.
+                                          (and (string-prefix? "Utilities/cm" dir)
+                                               (not (member dir preserved-files)))))
+                                    (lambda (file stat result)        ;leaf
+                                      (unless (or (member file preserved-files)
+                                                  ;; Preserve top-level files.
+                                                  (string=? "Utilities"
+                                                            (dirname file)))
+                                        (delete-file file)))
+                                    (const #t)                        ;down
+                                    (lambda (dir stat result)         ;up
+                                      (when (equal? (scandir dir) '("." ".."))
+                                        (rmdir dir)))
+                                    (const #t)                        ;skip
+                                    (lambda (file stat errno result)
+                                      (format (current-error-port)
+                                              "warning: failed to delete ~a: ~a~%"
+                                              file (strerror errno)))
+                                    #t
+                                    "Utilities"
+                                    lstat)
+                  #t))))
     (inputs
-     `(("curl" ,curl)
-       ("jsoncpp" ,jsoncpp)
-       ,@(alist-delete "curl" (package-inputs cmake-bootstrap))))
+     `(("jsoncpp" ,jsoncpp)
+       ,@(package-inputs cmake-bootstrap)))
     (build-system cmake-build-system)
     (arguments
      `(#:configure-flags
@@ -312,6 +296,15 @@ and workspaces that can be used in the compiler environment of your choice.")
        #:phases
        (modify-phases %standard-phases
          ,@%common-build-phases
+         (add-after 'install 'delete-help-documentation
+           (lambda* (#:key outputs #:allow-other-keys)
+             (delete-file-recursively
+               (string-append (assoc-ref outputs "out")
+                              "/share/cmake-"
+                              ,(version-major+minor
+                                 (package-version cmake-bootstrap))
+                              "/Help"))
+             #t))
          (replace 'check
            (lambda* (#:key tests? parallel-tests? #:allow-other-keys)
              (let ((skipped-tests (list ,@%common-disabled-tests
@@ -336,8 +329,6 @@ and workspaces that can be used in the compiler environment of your choice.")
     (inherit cmake-minimal)
     (name "cmake")
     (version "3.21.1")
-    ;; TODO: Move the following source field to the cmake-bootstrap package in
-    ;; the next rebuild cycle.
     (source (origin
               (inherit (package-source cmake-bootstrap))
               (uri (string-append "https://cmake.org/files/v"
@@ -345,29 +336,7 @@ and workspaces that can be used in the compiler environment of your choice.")
                                   "/cmake-" version ".tar.gz"))
               (sha256
                (base32
-                "1m7y9j5lafkrfswsg2vkpx2fz6p6fqpp2pcp2dcz5pylf58r3hzs"))
-              (snippet
-               (match (origin-snippet (package-source cmake-bootstrap))
-                 ((_ _ exp ...)
-                  ;; Now we can delete the remaining software bundles.
-                  (append `(begin
-                             (define preserved-files
-                               '(,@%preserved-third-party-files
-                                 ;; TODO: Move this file to the
-                                 ;; %preserved-third-party-files variable in
-                                 ;; the next rebuild cycle.
-                                 "Utilities/cm3p" ;CMake header wrappers
-                                 ;; Use the bundled JsonCpp during bootstrap
-                                 ;; to work around a circular dependency.
-                                 ;; TODO: JsonCpp can be built with Meson
-                                 ;; instead of CMake, but meson-build-system
-                                 ;; currently does not support
-                                 ;; cross-compilation.
-                                 "Utilities/cmjsoncpp"
-                                 ;; LibUV is required to bootstrap the initial
-                                 ;; build system.
-                                 "Utilities/cmlibuv")))
-                          exp))))))
+                "1m7y9j5lafkrfswsg2vkpx2fz6p6fqpp2pcp2dcz5pylf58r3hzs"))))
     (arguments
      (substitute-keyword-arguments (package-arguments cmake-minimal)
        ;; Use cmake-minimal this time.
@@ -389,44 +358,7 @@ and workspaces that can be used in the compiler environment of your choice.")
                  ,flags))
        ((#:phases phases)
         `(modify-phases ,phases
-           ;; TODO: Remove this override in the next rebuild cycle and adjust
-           ;; the %common-build-phases variable instead: the
-           ;; Utilities/Release/release_cmake.cmake file no longer exists in
-           ;; version 3.19.0.
-           (replace 'patch-bin-sh
-             (lambda _
-               ;; Replace "/bin/sh" by the right path in... a lot of
-               ;; files.
-               (substitute*
-                   '("Modules/CompilerId/Xcode-3.pbxproj.in"
-                     "Modules/Internal/CPack/CPack.RuntimeScript.in"
-                     "Source/cmGlobalXCodeGenerator.cxx"
-                     "Source/cmLocalUnixMakefileGenerator3.cxx"
-                     "Source/cmExecProgramCommand.cxx"
-                     "Tests/CMakeLists.txt"
-                     "Tests/RunCMake/File_Generate/RunCMakeTest.cmake")
-                 (("/bin/sh") (which "sh")))
-               #t))
-           ;; TODO: Remove this override in the next rebuild cycle and adjust
-           ;; the %common-disabled-tests variable instead.
-           (replace 'check
-             (lambda* (#:key tests? parallel-tests? #:allow-other-keys)
-               (let ((skipped-tests (list ,@%common-disabled-tests
-                                          ;; This test fails for unknown reason.
-                                          "RunCMake.file-GET_RUNTIME_DEPENDENCIES"
-                                          ;; This test fails for unknown reason.
-                                          "ExportImport"
-                                          ;; This test requires the bundled libuv.
-                                          "BootstrapTest")))
-                 (if tests?
-                     (begin
-                       (invoke "ctest" "-j" (if parallel-tests?
-                                                (number->string (parallel-job-count))
-                                                "1")
-                               "--exclude-regex"
-                               (string-append "^(" (string-join skipped-tests "|") ")$")))
-                     (format #t "test suite not run~%"))
-                 #t)))
+           (delete 'delete-help-documentation)
            (add-after 'install 'move-html-doc
              (lambda* (#:key outputs #:allow-other-keys)
                (let ((out (assoc-ref outputs "out"))
@@ -439,6 +371,9 @@ and workspaces that can be used in the compiler environment of your choice.")
                                    (string-append doc html))
                  (delete-file-recursively (string-append out html))
                  #t)))))))
+    (inputs
+     `(("ncurses" ,ncurses)             ;required for ccmake
+       ,@(package-inputs cmake-minimal)))
     ;; Extra inputs required to build the documentation.
     (native-inputs
      `(,@(package-native-inputs cmake-minimal)
diff --git a/gnu/packages/commencement.scm b/gnu/packages/commencement.scm
index e7bd6cf002..10b2987a11 100644
--- a/gnu/packages/commencement.scm
+++ b/gnu/packages/commencement.scm
@@ -1,15 +1,17 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2012 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2014, 2015, 2017 Mark H Weaver <mhw@netris.org>
-;;; Copyright © 2017, 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2017, 2018, 2019, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018, 2019, 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
-;;; Copyright © 2019, 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2019, 2020, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2020 Timothy Sample <samplet@ngyro.com>
 ;;; Copyright © 2020 Guy Fleury Iteriteka <gfleury@disroot.org>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2021 Chris Marusich <cmmarusich@gmail.com>
+;;; Copyright © 2021 Julien Lepiller <julien@lepiller.eu>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -49,12 +51,13 @@
   #:use-module (gnu packages shells)
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages pkg-config)
-  #:use-module (gnu packages rsync)
   #:use-module (gnu packages xml)
+  #:use-module (guix gexp)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system trivial)
+  #:use-module (guix gexp)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix memoization)
   #:use-module (guix utils)
@@ -116,8 +119,7 @@
                       (guile-dir (assoc-ref inputs "guile"))
                       (guile (string-append guile-dir "/bin/guile")))
                  (invoke guile "--no-auto-compile" source)
-                 (chdir "bootar")
-                 #t)))
+                 (chdir "bootar"))))
            (replace 'configure (bootstrap-configure ,version "." "scripts"))
            (replace 'build (bootstrap-build "."))
            (replace 'install (bootstrap-install "." "scripts"))))))
@@ -163,8 +165,7 @@ pure Scheme to Tar and decompression in one easy step.")
                  (symlink (string-append out "/bin/gash")
                           (string-append out "/bin/sh"))
                  (symlink (string-append out "/bin/gash")
-                          (string-append out "/bin/bash"))
-                 #t)))))))
+                          (string-append out "/bin/bash")))))))))
     (inputs `(("guile" ,%bootstrap-guile)))
     (native-inputs `(("bootar" ,bootar)))))
 
@@ -190,8 +191,7 @@ pure Scheme to Tar and decompression in one easy step.")
              (lambda* (#:key inputs #:allow-other-keys)
                (let ((gash (assoc-ref inputs "gash")))
                  (add-to-load-path (string-append gash "/share/guile/site/"
-                                                  (effective-version))))
-               #t))
+                                                  (effective-version))))))
            (add-before 'configure 'pre-configure
              (lambda _
                (format #t "Creating gash/commands/testb.scm~%")
@@ -217,8 +217,7 @@ pure Scheme to Tar and decompression in one easy step.")
                (copy-file "scripts/template.in" "scripts/[.in")
                (substitute* "scripts/[.in"
                  (("@UTILITY@") "testb"))
-               (delete-file "scripts/template.in")
-               #t))
+               (delete-file "scripts/template.in")))
            (replace 'configure
              (bootstrap-configure ,(package-version gash-utils)
                                   "gash" "scripts"))
@@ -247,8 +246,7 @@ pure Scheme to Tar and decompression in one easy step.")
                  (copy-file (string-append gash-godir "/gash/compat.go")
                             (string-append godir "/gash/compat.go"))
                  (copy-recursively (string-append gash-godir "/gash/compat")
-                                   (string-append godir "/gash/compat"))
-                 #t)))))))
+                                   (string-append godir "/gash/compat")))))))))
     (inputs `(("gash" ,gash-boot)
               ("guile" ,%bootstrap-guile)))
     (native-inputs `(("bootar" ,bootar)))))
@@ -438,8 +436,7 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
                                         (string-suffix? ".s" name))))))
                (for-each (lambda (x) (install-file x cache))
                          (append (objects-in-dir ".")
-                                 (objects-in-dir "mescc-lib"))))
-             #t)))))
+                                 (objects-in-dir "mescc-lib")))))))))
     (native-search-paths
      (list (search-path-specification
             (variable "C_INCLUDE_PATH")
@@ -573,8 +570,7 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
          (add-after 'unpack 'scripted-patch
            (lambda _
              (substitute* "util.c"
-               (("^char [*]strlwr" all) (string-append all "_tcc_cannot_handle_dupe")))
-             #t))
+               (("^char [*]strlwr" all) (string-append all "_tcc_cannot_handle_dupe")))))
          (replace 'build
            (lambda _
              (let ((files '("bits" "crypt" "deflate" "getopt" "gzip"
@@ -636,13 +632,11 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
            (lambda _
              (substitute* "build.sh.in"
                (("@LIBOBJS@") "getloadavg.o")
-               (("@REMOTE@") "stub"))
-             #t))
+               (("@REMOTE@") "stub"))))
          (add-after 'configure 'configure-fixup
            (lambda _
              (substitute* "make.h"
-               (("^extern long int lseek.*" all) (string-append "// " all)))
-             #t))
+               (("^extern long int lseek.*" all) (string-append "// " all)))))
          (replace 'build
            (lambda _
              (invoke "sh" "./build.sh")))
@@ -694,16 +688,14 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
                (("uTimBuf[.]" all)
                 (string-append "// " all))
                (("retVal = utime [(] dstName, &uTimBuf [)];" all)
-                (string-append "retVal = 0; // " all)))
-             #t))
+                (string-append "retVal = 0; // " all)))))
          (replace 'configure
            (lambda _
              (with-output-to-file "utime.h"
                (lambda _ (display "
 #define fchown(filedes, owner, group) 0
 #define fchmod(filedes, mode) 0
-")))
-             #t))
+")))))
          (replace 'check
            (lambda _
              (invoke "./bzip2" "--help")))
@@ -759,8 +751,7 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
                (setenv "CC" "tcc")
                (setenv "LD" "tcc")
                (setenv "AR" "tcc -ar")
-               (setenv "CFLAGS" "-D _POSIX_VERSION=1")
-               #t)))
+               (setenv "CFLAGS" "-D _POSIX_VERSION=1"))))
          (add-after 'unpack 'scripted-patch
            (lambda _
              (substitute* "Makefile.in"
@@ -773,8 +764,7 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
              (substitute* "lib/sh/snprintf.c"
                (("^#if (defined [(]HAVE_LOCALE_H[)])" all define) (string-append "#if 0 //" define)))
              (substitute* "configure"
-               ((" egrep") " grep"))
-             #t))
+               ((" egrep") " grep"))))
          (replace 'configure
            (lambda* (#:key configure-flags #:allow-other-keys)
              (let ((configure-flags (filter (lambda (x)
@@ -789,20 +779,16 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
              (substitute* "config.h"
                (("#define GETCWD_BROKEN 1") "#undef GETCWD_BROKEN"))
              (let ((config.h (open-file "config.h" "a")))
-               (display (string-append
-                         ;; XXX TODO: remove nested ,(string-append ...) and
-                         ;; store file name on next rebuild cycle
-                         ,(string-append "
+               (display "
 // tcc: error: undefined symbol 'enable_hostname_completion'
 #define enable_hostname_completion(on_or_off) 0
 
-// /gnu/store/" "cq0cmv35s9dhilx14zaghlc08gpc0hwr-tcc-boot0-0.9.26-6.c004e9a/lib/libc.a: error: 'sigprocmask' defined twice
+// /gnu/store/…-tcc-boot0-0.9.26-6.c004e9a/lib/libc.a: error: 'sigprocmask' defined twice
 #define HAVE_POSIX_SIGNALS 1
 #define endpwent(x) 0
-"))
+"
                         config.h)
-               (close config.h))
-             #t))
+               (close config.h))))
          (replace 'check
            (lambda _
              (invoke "./bash" "--version")))
@@ -812,8 +798,7 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
                     (bin (string-append out "/bin")))
                (mkdir-p bin)
                (copy-file "bash" (string-append bin "/bash"))
-               (copy-file "bash" (string-append bin "/sh"))
-               #t))))))))
+               (copy-file "bash" (string-append bin "/sh"))))))))))
 
 (define tcc-boot
   ;; The final tcc.
@@ -821,16 +806,11 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
     (inherit tcc-boot0)
     (name "tcc-boot")
     (version "0.9.27")
-    (source (origin
-              (inherit (package-source tcc))
-              ;; `patches' needs XZ
-              ;; (patches (search-patches "tcc-boot-0.9.27.patch"))
-              ))
+    (source (package-source tcc))
     (build-system gnu-build-system)
     (inputs '())
     (propagated-inputs '())
-    (native-inputs `(;;("boot-patch" ,(search-patch "tcc-boot-0.9.27.patch"))
-                     ("bzip2" ,bzip2-mesboot)
+    (native-inputs `(("bzip2" ,bzip2-mesboot)
                      ,@(%boot-tcc0-inputs)))
     (arguments
      `(#:implicit-inputs? #f
@@ -846,20 +826,13 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
              (copy-file source "tarball.tar.bz2")
              (invoke "bzip2" "-d" "tarball.tar.bz2")
              (invoke "tar" "xvf" "tarball.tar")
-             (chdir (string-append "tcc-" ,version))
-             #t))
-         ;; no patch yet
-         ;; (add-after 'unpack 'apply-boot-patch
-         ;;   (lambda* (#:key inputs #:allow-other-keys)
-         ;;     (let ((patch-file (assoc-ref inputs "boot-patch")))
-         ;;       (invoke "patch" "-p1" "-i" patch-file))))
+             (chdir (string-append "tcc-" ,version))))
          (add-after 'unpack 'scripted-patch
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "libtcc.c"
                (("s->alacarte_link = 1;" all)
                 (string-append all "
-    s->static_link = 1;")))
-             #t))
+    s->static_link = 1;")))))
          (replace 'configure
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref %outputs "out"))
@@ -919,57 +892,8 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
                 (invoke "tcc" "-ar" "rc" "libtcc1.a" "libtcc1.o")
                 (copy-file "libtcc1.a" (string-append out "/lib/libtcc1.a"))
                 (delete-file (string-append out "/lib/tcc/libtcc1.a"))
-                (copy-file "libtcc1.a" (string-append out "/lib/tcc/libtcc1.a"))
-                #t)))))))))
-
-(define diffutils-mesboot
-  ;; The initial diffutils.
-  (package
-    (inherit diffutils)
-    (name "diffutils-mesboot")
-    (version "2.7")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "mirror://gnu/diffutils/diffutils-"
-                                  version ".tar.gz"))
-              (sha256
-               (base32
-                "1mirn5i825bn5w7rh6mgn0r8aj9xqanav95dwcl1b8sn82f4iwnm"))))
-    (supported-systems '("i686-linux" "x86_64-linux"))
-    (inputs '())
-    (propagated-inputs '())
-    (native-inputs (%boot-tcc0-inputs))
-    (arguments
-     `(#:implicit-inputs? #f
-       #:guile ,%bootstrap-guile
-       #:parallel-build? #f
-       #:tests? #f            ; check is naive, also checks non-built PROGRAMS
-       #:strip-binaries? #f   ; no strip yet
-       #:phases
-       (modify-phases %standard-phases
-         (add-before 'configure 'remove-diff3-sdiff
-           (lambda* (#:key outputs #:allow-other-keys)
-             (substitute* "Makefile.in"
-               (("PROGRAMS = .*" all) "PROGRAMS = cmp diff"))))
-         (replace 'configure           ; needs classic invocation of configure
-           (lambda* (#:key configure-flags #:allow-other-keys)
-             (let* ((out (assoc-ref %outputs "out"))
-                    (bash (assoc-ref %build-inputs "bash"))
-                    (shell (string-append bash "/bin/bash")))
-               (setenv "CONFIG_SHELL" shell)
-               (setenv "CC" "tcc")
-               (setenv "LD" "tcc")
-               (format (current-error-port)
-                       "running ./configure ~a\n" (string-join configure-flags))
-               (apply invoke (cons "./configure" configure-flags)))))
-         (replace 'install
-           (lambda _
-             (let* ((out (assoc-ref %outputs "out"))
-                    (bin (string-append out "/bin")))
-               (mkdir-p bin)
-               (install-file "cmp" bin)
-               (install-file "diff" bin)
-               #t))))))))
+                (copy-file "libtcc1.a"
+                           (string-append out "/lib/tcc/libtcc1.a")))))))))))
 
 (define patch-mesboot
   ;; The initial patch.
@@ -1002,8 +926,7 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
              ;; avoid another segfault
              (substitute* "pch.c"
                (("while [(]p_end >= 0[)]" all)
-                "p_end = -1;\nwhile (0)"))
-             #t))
+                "p_end = -1;\nwhile (0)"))))
          ;; FIXME: no compressing gzip yet
          (delete 'compress-documentation))))))
 
@@ -1039,8 +962,7 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
                     (bash (assoc-ref %build-inputs "bash"))
                     (shell (string-append bash "/bin/bash")))
                (substitute* "configure"
-                 (("/bin/sh") shell))
-               #t)))
+                 (("/bin/sh") shell)))))
          (replace 'check
            (lambda _
              (invoke "./sed" "--version")))
@@ -1048,16 +970,16 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
            (lambda _
              (let* ((out (assoc-ref %outputs "out"))
                     (bin (string-append out "/bin")))
-               (install-file "sed" bin)
-               #t))))))))
+               (install-file "sed" bin)))))))))
 
 (define (%boot-tcc-inputs)
   `(("bash" ,bash-mesboot0)
     ("bzip2" ,bzip2-mesboot)
-    ("diffutils" ,diffutils-mesboot)
     ("gzip" ,gzip-mesboot)
     ("patch" ,patch-mesboot)
     ("sed" ,sed-mesboot0)
+    ;; Place lower than sed so we don't override it.
+    ("gash-utils" ,gash-utils-boot)
     ("tcc" ,tcc-boot)
     ,@(alist-delete "tcc" (%boot-tcc0-inputs))))
 
@@ -1105,14 +1027,12 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
                (setenv "SHELL" shell)
                (setenv "AR" "tcc -ar")
                (setenv "RANLIB" "true")
-               (setenv "CC" "tcc -D __GLIBC_MINOR__=6")
-               #t)))
+               (setenv "CC" "tcc -D __GLIBC_MINOR__=6"))))
          (add-after 'unpack 'scripted-patch
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "bfd/configure"
                (("^sed -e '/SRC-POTFILES.*" all)
-                "echo -e 'all:\\n\\ttrue\\n\\ninstall:\\n\\ttrue\\n' > po/Makefile\n"))
-             #t))
+                "echo -e 'all:\\n\\ttrue\\n\\ninstall:\\n\\ttrue\\n' > po/Makefile\n"))))
          (replace 'configure           ; needs classic invocation of configure
            (lambda* (#:key configure-flags #:allow-other-keys)
              (format (current-error-port)
@@ -1145,96 +1065,95 @@ $MES -e '(mescc)' module/mescc.scm -- \"$@\"
     (supported-systems '("i686-linux" "x86_64-linux"))
     (inputs '())
     (propagated-inputs '())
-    (native-inputs `(("boot-patch" ,(search-patch "gcc-boot-2.95.3.patch"))
-                     ("binutils" ,binutils-mesboot0)
+    (native-inputs `(("binutils" ,binutils-mesboot0)
                      ,@(%boot-tcc-inputs)))
     (outputs '("out"))
     (arguments
-     `(#:implicit-inputs? #f
-       #:guile ,%bootstrap-guile
-       #:tests? #f
-       #:parallel-build? #f
-       #:strip-binaries? #f
-       #:configure-flags
-       (let ((out (assoc-ref %outputs "out")))
-         `("--enable-static"
-           "--disable-shared"
-           "--disable-werror"
-           "--build=i686-unknown-linux-gnu"
-           "--host=i686-unknown-linux-gnu"
-           ,(string-append "--prefix=" out)))
-       #:make-flags
-       `("CC=tcc -static -D __GLIBC_MINOR__=6"
-         "OLDCC=tcc -static -D __GLIBC_MINOR__=6"
-         "CC_FOR_BUILD=tcc -static -D __GLIBC_MINOR__=6"
-         "AR=ar"
-         "RANLIB=ranlib"
-         ,(string-append "LIBGCC2_INCLUDES=-I "
-                         (assoc-ref %build-inputs "tcc")
-                         "/include")
-         "LANGUAGES=c"
-         ,(string-append "BOOT_LDFLAGS="
-                         " -B" (assoc-ref %build-inputs "tcc")
-                         "/lib/"))
-       #:modules ((guix build gnu-build-system)
-                  (guix build utils)
-                  (srfi srfi-1))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'apply-boot-patch
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((patch-file (assoc-ref inputs "boot-patch")))
-               (system* "patch" "--force" "-p1" "-i" patch-file)
-               #t)))
-         (add-before 'configure 'setenv
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((out (assoc-ref outputs "out"))
-                    (bash (assoc-ref %build-inputs "bash"))
-                    (shell (string-append bash "/bin/bash"))
-                    (tcc (assoc-ref %build-inputs "tcc"))
-                    (cppflags " -D __GLIBC_MINOR__=6"))
-               (setenv "CONFIG_SHELL" shell)
-               (setenv "CPPFLAGS" cppflags)
-               (setenv "CC" (string-append "tcc" cppflags))
-               (setenv "CC_FOR_BUILD" (string-append "tcc" cppflags))
-               (setenv "CPP" (string-append "tcc -E" cppflags))
-               (with-output-to-file "config.cache"
-                 (lambda _
-                   (display "
+     (list #:implicit-inputs? #f
+           #:guile %bootstrap-guile
+           #:tests? #f
+           #:parallel-build? #f
+           #:strip-binaries? #f
+           #:configure-flags
+           #~(let ((out (assoc-ref %outputs "out")))
+               `("--enable-static"
+                 "--disable-shared"
+                 "--disable-werror"
+                 "--build=i686-unknown-linux-gnu"
+                 "--host=i686-unknown-linux-gnu"
+                 ,(string-append "--prefix=" out)))
+           #:make-flags
+           #~`("CC=tcc -static -D __GLIBC_MINOR__=6"
+               "OLDCC=tcc -static -D __GLIBC_MINOR__=6"
+               "CC_FOR_BUILD=tcc -static -D __GLIBC_MINOR__=6"
+               "AR=ar"
+               "RANLIB=ranlib"
+               ,(string-append "LIBGCC2_INCLUDES=-I "
+                               (assoc-ref %build-inputs "tcc")
+                               "/include")
+               "LANGUAGES=c"
+               ,(string-append "BOOT_LDFLAGS="
+                               " -B" (assoc-ref %build-inputs "tcc")
+                               "/lib/"))
+           #:modules '((guix build gnu-build-system)
+                       (guix build utils)
+                       (srfi srfi-1))
+           #:phases
+           #~(modify-phases %standard-phases
+               (add-after 'unpack 'apply-boot-patch
+                 (lambda* (#:key inputs #:allow-other-keys)
+                   (let ((patch-file
+                          #$(local-file
+                             (search-patch "gcc-boot-2.95.3.patch"))))
+                     (invoke "patch" "--force" "-p1" "-i" patch-file))))
+               (add-before 'configure 'setenv
+                 (lambda* (#:key outputs #:allow-other-keys)
+                   (let* ((out (assoc-ref outputs "out"))
+                          (bash (assoc-ref %build-inputs "bash"))
+                          (shell (string-append bash "/bin/bash"))
+                          (tcc (assoc-ref %build-inputs "tcc"))
+                          (cppflags " -D __GLIBC_MINOR__=6"))
+                     (setenv "CONFIG_SHELL" shell)
+                     (setenv "CPPFLAGS" cppflags)
+                     (setenv "CC" (string-append "tcc" cppflags))
+                     (setenv "CC_FOR_BUILD" (string-append "tcc" cppflags))
+                     (setenv "CPP" (string-append "tcc -E" cppflags))
+                     (with-output-to-file "config.cache"
+                       (lambda _
+                         (display "
 ac_cv_c_float_format='IEEE (little-endian)'
 "))))))
-         ;; gcc-2.95.3
-         (replace 'configure           ; needs classic invocation of configure
-           (lambda* (#:key configure-flags  #:allow-other-keys)
-             (format (current-error-port)
-                     "running ./configure ~a\n" (string-join configure-flags))
-             (apply invoke "./configure" configure-flags)))
-         (add-after 'configure 'remove-info
-           (lambda _
-             ;; no info at this stage
-             (delete-file-recursively "texinfo")
-             (invoke "touch" "gcc/cpp.info" "gcc/gcc.info")))
-         (add-after 'install 'install2
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((tcc (assoc-ref %build-inputs "tcc"))
-                    (tcc-lib (string-append tcc "/lib/x86-mes-gcc"))
-                    (out (assoc-ref outputs "out"))
-                    (gcc-dir (string-append
-                              out "/lib/gcc-lib/i686-unknown-linux-gnu/2.95.3")))
-               (mkdir-p "tmp")
-               (with-directory-excursion "tmp"
-                 (invoke "ar" "x" (string-append "../gcc/libgcc2.a"))
-                 (invoke "ar" "x" (string-append tcc "/lib/libtcc1.a"))
-                 (apply invoke "ar" "r" (string-append gcc-dir "/libgcc.a")
-                        (find-files "." "\\.o")))
-               (copy-file "gcc/libgcc2.a" (string-append out "/lib/libgcc2.a"))
-               (copy-file (string-append tcc "/lib/libtcc1.a")
-                          (string-append out "/lib/libtcc1.a"))
-               (invoke "ar" "x" (string-append tcc "/lib/libtcc1.a"))
-               (invoke "ar" "x" (string-append tcc "/lib/libc.a"))
-               (invoke "ar" "r" (string-append gcc-dir "/libc.a")
-                       "libc.o" "libtcc1.o")
-               #t))))))
+               ;; gcc-2.95.3
+               (replace 'configure           ; needs classic invocation of configure
+                 (lambda* (#:key configure-flags  #:allow-other-keys)
+                   (format (current-error-port)
+                           "running ./configure ~a\n" (string-join configure-flags))
+                   (apply invoke "./configure" configure-flags)))
+               (add-after 'configure 'remove-info
+                 (lambda _
+                   ;; no info at this stage
+                   (delete-file-recursively "texinfo")
+                   (invoke "touch" "gcc/cpp.info" "gcc/gcc.info")))
+               (add-after 'install 'install2
+                 (lambda* (#:key outputs #:allow-other-keys)
+                   (let* ((tcc (assoc-ref %build-inputs "tcc"))
+                          (tcc-lib (string-append tcc "/lib/x86-mes-gcc"))
+                          (out (assoc-ref outputs "out"))
+                          (gcc-dir (string-append
+                                    out "/lib/gcc-lib/i686-unknown-linux-gnu/2.95.3")))
+                     (mkdir-p "tmp")
+                     (with-directory-excursion "tmp"
+                       (invoke "ar" "x" (string-append "../gcc/libgcc2.a"))
+                       (invoke "ar" "x" (string-append tcc "/lib/libtcc1.a"))
+                       (apply invoke "ar" "r" (string-append gcc-dir "/libgcc.a")
+                              (find-files "." "\\.o")))
+                     (copy-file "gcc/libgcc2.a" (string-append out "/lib/libgcc2.a"))
+                     (copy-file (string-append tcc "/lib/libtcc1.a")
+                                (string-append out "/lib/libtcc1.a"))
+                     (invoke "ar" "x" (string-append tcc "/lib/libtcc1.a"))
+                     (invoke "ar" "x" (string-append tcc "/lib/libc.a"))
+                     (invoke "ar" "r" (string-append gcc-dir "/libc.a")
+                             "libc.o" "libtcc1.o")))))))
     (native-search-paths
      (list (search-path-specification
             (variable "C_INCLUDE_PATH")
@@ -1277,8 +1196,7 @@ ac_cv_c_float_format='IEEE (little-endian)'
                     (headers (assoc-ref %build-inputs "kernel-headers")))
                (mkdir-p include)
                (copy-recursively "include" out)
-               (copy-recursively headers out)
-               #t))))))))
+               (copy-recursively headers out)))))))))
 
 (define gawk-mesboot0
   ;; The initial Gawk.
@@ -1329,8 +1247,7 @@ ac_cv_c_float_format='IEEE (little-endian)'
                (setenv "CPP" "tcc -E")
                (setenv "LD" "tcc")
                (setenv "ac_cv_func_getpgrp_void" "yes")
-               (setenv "ac_cv_func_tzset" "yes"))
-             #t))
+               (setenv "ac_cv_func_tzset" "yes"))))
          (replace 'configure           ; needs classic invocation of configure
            (lambda* (#:key configure-flags #:allow-other-keys)
              (let* ((out (assoc-ref %outputs "out"))
@@ -1345,8 +1262,7 @@ ac_cv_c_float_format='IEEE (little-endian)'
              (let* ((out (assoc-ref outputs "out"))
                     (bin (string-append out "/bin")))
                (install-file "gawk" bin)
-               (symlink "gawk" (string-append bin "/awk"))
-               #t))))))))
+               (symlink "gawk" (string-append bin "/awk"))))))))))
 
 (define glibc-mesboot0
   ;; GNU C Library 2.2.5 is the most recent glibc that we managed to build
@@ -1369,87 +1285,84 @@ ac_cv_c_float_format='IEEE (little-endian)'
     (supported-systems '("i686-linux" "x86_64-linux"))
     (inputs '())
     (propagated-inputs '())
-    (native-inputs `(("boot-patch" ,(search-patch "glibc-boot-2.2.5.patch"))
-                     ("system-patch" ,(search-patch "glibc-bootstrap-system-2.2.5.patch"))
-                     ("headers" ,mesboot-headers)
+    (native-inputs `(("headers" ,mesboot-headers)
                      ,@(%boot-mesboot-core-inputs)))
     (outputs '("out"))
     (arguments
-     `(#:implicit-inputs? #f
-       #:guile ,%bootstrap-guile
-       #:tests? #f
-       #:strip-binaries? #f
-       #:validate-runpath? #f   ; no dynamic executables
-       #:parallel-build? #f     ; gcc-2.95.3 ICEs on massively parallel builds
-       #:make-flags (list (string-append
-                           "SHELL="
-                           (assoc-ref %build-inputs "bash")
-                           "/bin/sh"))
-       #:configure-flags
-       (let ((out (assoc-ref %outputs "out"))
-             (headers (assoc-ref %build-inputs "headers")))
-         `("--disable-shared"
-           "--enable-static"
-           "--disable-sanity-checks"
-           "--build=i686-unknown-linux-gnu"
-           "--host=i686-unknown-linux-gnu"
-           ,(string-append "--with-headers=" headers "/include")
-           "--enable-static-nss"
-           "--without-__thread"
-           "--without-cvs"
-           "--without-gd"
-           "--without-tls"
-           ,(string-append "--prefix=" out)))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'apply-boot-patch
-           (lambda* (#:key inputs #:allow-other-keys)
-             (and (let ((patch (assoc-ref inputs "boot-patch")))
-                    (invoke "patch" "--force" "-p1" "-i" patch))
-                  (let ((patch (assoc-ref inputs "system-patch")))
-                    (invoke "patch" "--force" "-p1" "-i" patch)))))
-         (add-before 'configure 'setenv
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((out (assoc-ref outputs "out"))
-                    (bash (assoc-ref %build-inputs "bash"))
-                    (shell (string-append bash "/bin/bash"))
-                    (gcc (assoc-ref %build-inputs "gcc"))
-                    (headers (assoc-ref %build-inputs "headers"))
-                    (cppflags (string-append
-                               ;;" -D __STDC__=1"
-                               " -D MES_BOOTSTRAP=1"
-                               " -D BOOTSTRAP_GLIBC=1"))
-                    (cflags (string-append " -L " (getcwd))))
-               (setenv "CONFIG_SHELL" shell)
-               (setenv "SHELL" shell)
-               (setenv "CPP" (string-append gcc "/bin/gcc -E " cppflags))
-               (setenv "CC" (string-append gcc "/bin/gcc " cppflags cflags))
-               #t)))
-         (replace 'configure           ; needs classic invocation of configure
-           (lambda* (#:key configure-flags #:allow-other-keys)
-             (format (current-error-port)
-                     "running ./configure ~a\n" (string-join configure-flags))
-             (apply invoke "./configure" configure-flags)))
-                  (add-after 'configure 'fixup-configure
-                    (lambda _
-                      (let* ((out (assoc-ref %outputs "out"))
-                             (bash (assoc-ref %build-inputs "bash"))
-                             (shell (string-append bash "/bin/bash")))
-                        (substitute* "config.make"
-                          (("INSTALL = scripts/") "INSTALL = $(..)./scripts/"))
-                        (substitute* "config.make"
-                          (("INSTALL = scripts/") "INSTALL = $(..)./scripts/")
-                          (("BASH = ") (string-append
-                                        "SHELL = " shell "
-         BASH = ")))
-                        #t))))))))
+     (list #:implicit-inputs? #f
+           #:guile %bootstrap-guile
+           #:tests? #f
+           #:strip-binaries? #f
+           #:validate-runpath? #f   ; no dynamic executables
+           #:parallel-build? #f     ; gcc-2.95.3 ICEs on massively parallel builds
+           #:make-flags #~(list (string-append
+                                 "SHELL="
+                                 (assoc-ref %build-inputs "bash")
+                                 "/bin/sh"))
+           #:configure-flags
+           #~(let ((out (assoc-ref %outputs "out"))
+                   (headers (assoc-ref %build-inputs "headers")))
+               `("--disable-shared"
+                 "--enable-static"
+                 "--disable-sanity-checks"
+                 "--build=i686-unknown-linux-gnu"
+                 "--host=i686-unknown-linux-gnu"
+                 ,(string-append "--with-headers=" headers "/include")
+                 "--enable-static-nss"
+                 "--without-__thread"
+                 "--without-cvs"
+                 "--without-gd"
+                 "--without-tls"
+                 ,(string-append "--prefix=" out)))
+           #:phases
+           #~(modify-phases %standard-phases
+               (add-after 'unpack 'apply-boot-patch
+                 (lambda* (#:key inputs #:allow-other-keys)
+                   (invoke "patch" "--force" "-p1" "-i"
+                           #$(local-file
+                              (search-patch "glibc-boot-2.2.5.patch")))
+                   (invoke "patch" "--force" "-p1" "-i"
+                           #$(local-file
+                              (search-patch "glibc-bootstrap-system-2.2.5.patch")))))
+               (add-before 'configure 'setenv
+                 (lambda* (#:key outputs #:allow-other-keys)
+                   (let* ((out (assoc-ref outputs "out"))
+                          (bash (assoc-ref %build-inputs "bash"))
+                          (shell (string-append bash "/bin/bash"))
+                          (gcc (assoc-ref %build-inputs "gcc"))
+                          (headers (assoc-ref %build-inputs "headers"))
+                          (cppflags (string-append
+                                     ;;" -D __STDC__=1"
+                                     " -D MES_BOOTSTRAP=1"
+                                     " -D BOOTSTRAP_GLIBC=1"))
+                          (cflags (string-append " -L " (getcwd))))
+                     (setenv "CONFIG_SHELL" shell)
+                     (setenv "SHELL" shell)
+                     (setenv "CPP" (string-append gcc "/bin/gcc -E " cppflags))
+                     (setenv "CC" (string-append gcc "/bin/gcc " cppflags cflags)))))
+               (replace 'configure           ; needs classic invocation of configure
+                 (lambda* (#:key configure-flags #:allow-other-keys)
+                   (format (current-error-port)
+                           "running ./configure ~a\n" (string-join configure-flags))
+                   (apply invoke "./configure" configure-flags)))
+               (add-after 'configure 'fixup-configure
+                 (lambda _
+                   (let* ((out (assoc-ref %outputs "out"))
+                          (bash (assoc-ref %build-inputs "bash"))
+                          (shell (string-append bash "/bin/bash")))
+                     (substitute* "config.make"
+                       (("INSTALL = scripts/") "INSTALL = $(..)./scripts/"))
+                     (substitute* "config.make"
+                       (("INSTALL = scripts/") "INSTALL = $(..)./scripts/")
+                       (("BASH = ") (string-append
+                                     "SHELL = " shell "
+         BASH = ")))))))))))
 
 (define gcc-mesboot0
   (package
     (inherit gcc-core-mesboot0)
     (name "gcc-mesboot0")
-    (native-inputs `(("boot-patch" ,(search-patch "gcc-boot-2.95.3.patch"))
-                     ;; Packages are given in an order that's relevant for
+    (native-inputs `(;; Packages are given in an order that's relevant for
                      ;; #include_next purposes.
                      ("libc" ,glibc-mesboot0)
                      ("kernel-headers" ,%bootstrap-linux-libre-headers)
@@ -1457,38 +1370,37 @@ ac_cv_c_float_format='IEEE (little-endian)'
     (arguments
      (substitute-keyword-arguments (package-arguments gcc-core-mesboot0)
        ((#:phases phases)
-        `(modify-phases ,phases
-           (replace 'setenv
-             (lambda _
-               (setenv "CONFIG_SHELL" (which "sh"))
-               (with-output-to-file "config.cache"
-                 (lambda _
-                   (display "
+        #~(modify-phases #$phases
+            (replace 'setenv
+              (lambda _
+                (setenv "CONFIG_SHELL" (which "sh"))
+                (with-output-to-file "config.cache"
+                  (lambda _
+                    (display "
 ac_cv_c_float_format='IEEE (little-endian)'
-")))
-               #t))
-           (replace 'install2
-             (lambda* (#:key outputs #:allow-other-keys)
-               (let* ((out (assoc-ref outputs "out"))
-                      (gcc-dir (string-append
-                                out "/lib/gcc-lib/i686-unknown-linux-gnu/2.95.3")))
-                 (and
-                  (mkdir-p "tmp")
-                  (zero? (system (string-append "set -x; cd tmp && ar x ../gcc/libgcc2.a")))
-                  (zero? (system (string-append "set -x; cd tmp && ar r " gcc-dir "/libgcc.a *.o")))
-                  (copy-file "gcc/libgcc2.a" (string-append out "/lib/libgcc2.a"))))))))
+")))))
+            (replace 'install2
+              (lambda* (#:key outputs #:allow-other-keys)
+                (let* ((out (assoc-ref outputs "out"))
+                       (gcc-dir (string-append
+                                 out "/lib/gcc-lib/i686-unknown-linux-gnu/2.95.3")))
+                  (and
+                   (mkdir-p "tmp")
+                   (zero? (system (string-append "set -x; cd tmp && ar x ../gcc/libgcc2.a")))
+                   (zero? (system (string-append "set -x; cd tmp && ar r " gcc-dir "/libgcc.a *.o")))
+                   (copy-file "gcc/libgcc2.a" (string-append out "/lib/libgcc2.a"))))))))
        ((#:configure-flags configure-flags)
-        `(let ((out (assoc-ref %outputs "out")))
-           `("--disable-shared"
-             "--disable-werror"
-             "--build=i686-unknown-linux-gnu"
-             "--host=i686-unknown-linux-gnu"
-             ,(string-append "--prefix=" out))))
+        #~(let ((out (assoc-ref %outputs "out")))
+            `("--disable-shared"
+              "--disable-werror"
+              "--build=i686-unknown-linux-gnu"
+              "--host=i686-unknown-linux-gnu"
+              ,(string-append "--prefix=" out))))
        ((#:make-flags make-flags)
-        `(let ((gcc (assoc-ref %build-inputs "gcc")))
-           `("RANLIB=true"
-             ,(string-append "LIBGCC2_INCLUDES=-I " gcc "/include")
-             "LANGUAGES=c")))))))
+        #~(let ((gcc (assoc-ref %build-inputs "gcc")))
+            `("RANLIB=true"
+              ,(string-append "LIBGCC2_INCLUDES=-I " gcc "/include")
+              "LANGUAGES=c")))))))
 
 (define (%boot-mesboot0-inputs)
   `(("gcc" ,gcc-mesboot0)
@@ -1543,14 +1455,12 @@ ac_cv_c_float_format='IEEE (little-endian)'
                (substitute* "configure"
                  ((" /bin/sh") shell)))
              (substitute* "Makefile.in"
-               (("^SUBDIRS = doc") "SUBDIRS ="))
-             #t))
+               (("^SUBDIRS = doc") "SUBDIRS ="))))
          (replace 'install
            (lambda _
              (let* ((out (assoc-ref %outputs "out"))
                     (bin (string-append out "/bin")))
-               (install-file "src/tar" bin)
-               #t))))))))
+               (install-file "src/tar" bin)))))))))
 
 (define grep-mesboot
   ;; The initial grep.
@@ -1587,8 +1497,7 @@ ac_cv_c_float_format='IEEE (little-endian)'
                     (bin (string-append out "/bin")))
                (install-file "grep" bin)
                (symlink "grep" (string-append bin "/egrep"))
-               (symlink "grep" (string-append bin "/fgrep"))
-               #t))))))))
+               (symlink "grep" (string-append bin "/fgrep"))))))))))
 
 (define binutils-mesboot1
   (package
@@ -1613,8 +1522,7 @@ ac_cv_c_float_format='IEEE (little-endian)'
                (let* ((out (assoc-ref %outputs "out"))
                       (bash (assoc-ref %build-inputs "bash"))
                       (shell (string-append bash "/bin/bash")))
-                 (setenv "CONFIG_SHELL" shell)
-                 #t)))))))))
+                 (setenv "CONFIG_SHELL" shell))))))))))
 
 (define coreutils-mesboot0
   (package
@@ -1677,8 +1585,7 @@ ac_cv_c_float_format='IEEE (little-endian)'
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
                     (bin (string-append out "/bin")))
-               (install-file "make" bin)
-               #t))))))))
+               (install-file "make" bin)))))))))
 
 (define gawk-mesboot
   (package
@@ -1713,8 +1620,7 @@ ac_cv_c_float_format='IEEE (little-endian)'
              (let* ((out (assoc-ref outputs "out"))
                     (bin (string-append out "/bin")))
                (install-file "gawk" bin)
-               (symlink "gawk" (string-append bin "/awk"))
-               #t))))))))
+               (symlink "gawk" (string-append bin "/awk"))))))))))
 
 (define sed-mesboot
   (package
@@ -1745,8 +1651,7 @@ ac_cv_c_float_format='IEEE (little-endian)'
                     (shell (string-append bash "/bin/bash")))
                (substitute* "testsuite/Makefile.tests"
                  (("^SHELL = /bin/sh")
-                  (string-append "SHELL = " shell)))
-               #t))))))))
+                  (string-append "SHELL = " shell)))))))))))
 
 (define bash-mesboot
   (package
@@ -1789,14 +1694,12 @@ ac_cv_c_float_format='IEEE (little-endian)'
          (add-after 'unpack 'scripted-patch
            (lambda _
              (substitute* "shell.c"
-               ((";;") ";"))
-             #t))
+               ((";;") ";"))))
          (add-before 'configure 'setenv
            (lambda _
              (setenv "AWK" "gawk")
              (setenv "LIBS" "-lc -lnss_files -lnss_dns -lresolv")
-             (setenv "gl_cv_func_rename_dest_works" "yes")
-             #t))
+             (setenv "gl_cv_func_rename_dest_works" "yes")))
          (add-after 'configure 'configure-fixups
            (lambda _
              (let ((config.h (open-file "config.h" "a")))
@@ -1804,8 +1707,7 @@ ac_cv_c_float_format='IEEE (little-endian)'
 #define enable_hostname_completion(on_or_off) 0
 ")
                         config.h)
-               (close config.h))
-             #t))
+               (close config.h))))
          (replace 'check
            (lambda _
              (invoke "./bash" "--version")))
@@ -1815,8 +1717,7 @@ ac_cv_c_float_format='IEEE (little-endian)'
                     (bin (string-append out "/bin")))
                (mkdir-p bin)
                (copy-file "bash" (string-append bin "/bash"))
-               (copy-file "bash" (string-append bin "/sh"))
-               #t))))))))
+               (copy-file "bash" (string-append bin "/sh"))))))))))
 
 (define (%boot-mesboot1-inputs)
   `(("bash" ,bash-mesboot)
@@ -1880,114 +1781,109 @@ ac_cv_c_float_format='IEEE (little-endian)'
                                   version "/gcc-core-" version ".tar.gz"))
               (sha256
                (base32
-                "173kdb188qg79pcz073cj9967rs2vzanyjdjyxy9v0xb0p5sad75"))
-              ;; Patch needs XZ
-              ;; (patches (search-patches "gcc-boot-4.6.4.patch"))
-              ))
+                "173kdb188qg79pcz073cj9967rs2vzanyjdjyxy9v0xb0p5sad75"))))
     (inputs `(("gmp-source" ,(package-source gmp-boot))
               ("mpfr-source" ,(package-source mpfr-boot))
               ("mpc-source" ,(package-source mpc-boot))))
-    (native-inputs `(("boot-patch" ,(search-patch "gcc-boot-4.6.4.patch"))
-                     ,@(%boot-mesboot1-inputs)))
-    (arguments
-     `(#:implicit-inputs? #f
-       #:guile ,%bootstrap-guile
-       #:tests? #f
-       #:modules ((guix build gnu-build-system)
-                  (guix build utils)
-                  (srfi srfi-1))
-       #:parallel-build? #f             ; for debugging
-       #:make-flags
-       (let* ((libc (assoc-ref %build-inputs "libc"))
-              (ldflags (string-append
-                        "-B" libc "/lib "
-                        "-Wl,-dynamic-linker "
-                        "-Wl," libc
-                        ,(glibc-dynamic-linker "i686-linux"))))
-         (list (string-append "LDFLAGS=" ldflags)
-               (string-append "LDFLAGS_FOR_TARGET=" ldflags)))
-       #:configure-flags
-       (let ((out (assoc-ref %outputs "out"))
-             (glibc (assoc-ref %build-inputs "libc")))
-         (list (string-append "--prefix=" out)
-               "--build=i686-unknown-linux-gnu"
-               "--host=i686-unknown-linux-gnu"
-               (string-append "--with-native-system-header-dir=" glibc "/include")
-               (string-append "--with-build-sysroot=" glibc "/include")
-               "--disable-bootstrap"
-               "--disable-decimal-float"
-               "--disable-libatomic"
-               "--disable-libcilkrts"
-               "--disable-libgomp"
-               "--disable-libitm"
-               "--disable-libmudflap"
-               "--disable-libquadmath"
-               "--disable-libsanitizer"
-               "--disable-libssp"
-               "--disable-libvtv"
-               "--disable-lto"
-               "--disable-lto-plugin"
-               "--disable-multilib"
-               "--disable-plugin"
-               "--disable-threads"
-               "--enable-languages=c"
-               "--enable-static"
-               "--disable-shared"
-               "--enable-threads=single"
-               "--disable-libstdcxx-pch"
-               "--disable-build-with-cxx"))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'apply-boot-patch
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((patch-file (assoc-ref inputs "boot-patch")))
-               (format (current-error-port) "patch file=~s\n" patch-file)
-               (system* "patch" "--force" "-p1" "-i" patch-file))
-             #t))
-         ;; c&p from commencement.scm:gcc-boot0
-         (add-after 'unpack 'unpack-gmp&co
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((gmp  (assoc-ref %build-inputs "gmp-source"))
-                   (mpfr (assoc-ref %build-inputs "mpfr-source"))
-                   (mpc  (assoc-ref %build-inputs "mpc-source")))
-
-               ;; To reduce the set of pre-built bootstrap inputs, build
-               ;; GMP & co. from GCC.
-               (for-each (lambda (source)
-                           (or (invoke "tar" "xvf" source)
-                               (error "failed to unpack tarball"
-                                      source)))
-                         (list gmp mpfr mpc))
-
-               ;; Create symlinks like `gmp' -> `gmp-x.y.z'.
-               ,@(map (lambda (lib)
-                        ;; Drop trailing letters, as gmp-6.0.0a unpacks
-                        ;; into gmp-6.0.0.
-                        `(symlink ,(string-trim-right
-                                    (package-full-name lib "-")
-                                    char-set:letter)
-                                  ,(package-name lib)))
-                      (list gmp-boot mpfr-boot mpc-boot))
-               #t)))
-         (add-before 'configure 'setenv
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((out (assoc-ref outputs "out"))
-                    (binutils (assoc-ref %build-inputs "binutils"))
-                    (bash (assoc-ref %build-inputs "bash"))
-                    (gcc (assoc-ref %build-inputs "gcc"))
-                    (glibc (assoc-ref %build-inputs "libc"))
-                    (kernel-headers (assoc-ref %build-inputs "kernel-headers")))
-               (setenv "CONFIG_SHELL" (string-append bash "/bin/sh"))
-               (setenv "C_INCLUDE_PATH" (string-append
-                                         gcc "/lib/gcc-lib/i686-unknown-linux-gnu/2.95.3/include"
-                                         ":" kernel-headers "/include"
-                                         ":" glibc "/include"
-                                         ":" (getcwd) "/mpfr/src"))
-               (setenv "LIBRARY_PATH" (string-append glibc "/lib"
-                                                     ":" gcc "/lib"))
-               (format (current-error-port) "C_INCLUDE_PATH=~a\n" (getenv "C_INCLUDE_PATH"))
-               (format (current-error-port) "LIBRARY_PATH=~a\n" (getenv "LIBRARY_PATH"))
-               #t))))))))
+    (native-inputs (%boot-mesboot1-inputs))
+    (arguments
+     (list #:implicit-inputs? #f
+           #:guile %bootstrap-guile
+           #:tests? #f
+           #:modules '((guix build gnu-build-system)
+                       (guix build utils)
+                       (srfi srfi-1))
+           #:parallel-build? #f             ; for debugging
+           #:make-flags
+           #~(let* ((libc (assoc-ref %build-inputs "libc"))
+                    (ldflags (string-append
+                              "-B" libc "/lib "
+                              "-Wl,-dynamic-linker "
+                              "-Wl," libc
+                              #$(glibc-dynamic-linker "i686-linux"))))
+               (list (string-append "LDFLAGS=" ldflags)
+                     (string-append "LDFLAGS_FOR_TARGET=" ldflags)))
+           #:configure-flags
+           #~(let ((out (assoc-ref %outputs "out"))
+                   (glibc (assoc-ref %build-inputs "libc")))
+               (list (string-append "--prefix=" out)
+                     "--build=i686-unknown-linux-gnu"
+                     "--host=i686-unknown-linux-gnu"
+                     (string-append "--with-native-system-header-dir=" glibc "/include")
+                     (string-append "--with-build-sysroot=" glibc "/include")
+                     "--disable-bootstrap"
+                     "--disable-decimal-float"
+                     "--disable-libatomic"
+                     "--disable-libcilkrts"
+                     "--disable-libgomp"
+                     "--disable-libitm"
+                     "--disable-libmudflap"
+                     "--disable-libquadmath"
+                     "--disable-libsanitizer"
+                     "--disable-libssp"
+                     "--disable-libvtv"
+                     "--disable-lto"
+                     "--disable-lto-plugin"
+                     "--disable-multilib"
+                     "--disable-plugin"
+                     "--disable-threads"
+                     "--enable-languages=c"
+                     "--enable-static"
+                     "--disable-shared"
+                     "--enable-threads=single"
+                     "--disable-libstdcxx-pch"
+                     "--disable-build-with-cxx"))
+           #:phases
+           #~(modify-phases %standard-phases
+               (add-after 'unpack 'apply-boot-patch
+                 (lambda* (#:key inputs #:allow-other-keys)
+                   (let ((patch-file
+                          #$(local-file
+                             (search-patch "gcc-boot-4.6.4.patch"))))
+                     (invoke "patch" "--force" "-p1" "-i" patch-file))))
+               ;; c&p from commencement.scm:gcc-boot0
+               (add-after 'unpack 'unpack-gmp&co
+                 (lambda* (#:key inputs #:allow-other-keys)
+                   (let ((gmp  (assoc-ref %build-inputs "gmp-source"))
+                         (mpfr (assoc-ref %build-inputs "mpfr-source"))
+                         (mpc  (assoc-ref %build-inputs "mpc-source")))
+
+                     ;; To reduce the set of pre-built bootstrap inputs, build
+                     ;; GMP & co. from GCC.
+                     (for-each (lambda (source)
+                                 (or (invoke "tar" "xvf" source)
+                                     (error "failed to unpack tarball"
+                                            source)))
+                               (list gmp mpfr mpc))
+
+                     ;; Create symlinks like `gmp' -> `gmp-x.y.z'.
+                     #$@(map (lambda (lib)
+                               ;; Drop trailing letters, as gmp-6.0.0a unpacks
+                               ;; into gmp-6.0.0.
+                               #~(symlink #$(string-trim-right
+                                             (package-full-name lib "-")
+                                             char-set:letter)
+                                          #$(package-name lib)))
+                             (list gmp-boot mpfr-boot mpc-boot)))))
+               (add-before 'configure 'setenv
+                 (lambda* (#:key outputs #:allow-other-keys)
+                   (let* ((out (assoc-ref outputs "out"))
+                          (binutils (assoc-ref %build-inputs "binutils"))
+                          (bash (assoc-ref %build-inputs "bash"))
+                          (gcc (assoc-ref %build-inputs "gcc"))
+                          (glibc (assoc-ref %build-inputs "libc"))
+                          (kernel-headers (assoc-ref %build-inputs "kernel-headers")))
+                     (setenv "CONFIG_SHELL" (string-append bash "/bin/sh"))
+                     (setenv "C_INCLUDE_PATH" (string-append
+                                               gcc "/lib/gcc-lib/i686-unknown-linux-gnu/2.95.3/include"
+                                               ":" kernel-headers "/include"
+                                               ":" glibc "/include"
+                                               ":" (getcwd) "/mpfr/src"))
+                     (setenv "LIBRARY_PATH" (string-append glibc "/lib"
+                                                           ":" gcc "/lib"))
+                     (format (current-error-port) "C_INCLUDE_PATH=~a\n" (getenv "C_INCLUDE_PATH"))
+                     (format (current-error-port) "LIBRARY_PATH=~a\n"
+                             (getenv "LIBRARY_PATH"))))))))))
 
 (define gcc-mesboot1
   (package
@@ -2007,31 +1903,29 @@ ac_cv_c_float_format='IEEE (little-endian)'
     (arguments
      (substitute-keyword-arguments (package-arguments gcc-core-mesboot1)
        ((#:configure-flags configure-flags)
-        `(let ((out (assoc-ref %outputs "out")))
-           `("--enable-languages=c,c++"
-             ,@(filter
-                (negate (lambda (x) (string-prefix? "--enable-languages=" x)))
-                ,configure-flags))))
+        #~(let ((out (assoc-ref %outputs "out")))
+            `("--enable-languages=c,c++"
+              ,@(filter
+                 (negate (lambda (x) (string-prefix? "--enable-languages=" x)))
+                 #$configure-flags))))
        ((#:phases phases)
-        `(modify-phases ,phases
-           (add-before 'unpack 'unpack-g++
-             (lambda _
-               (let ((source-g++ (assoc-ref %build-inputs "gcc-g++")))
-                 (invoke "tar" "xvf" source-g++))
-               #t))
-           (replace 'setenv
-             (lambda _
-               (setenv "CONFIG_SHELL" (which "sh"))
-
-               ;; Allow MPFR headers to be found.
-               (setenv "C_INCLUDE_PATH"
-                       (string-append (getcwd) "/mpfr/src:"
-                                      (getenv "C_INCLUDE_PATH")))
-
-               ;; Set the C++ search path so that C headers can be found as
-               ;; libstdc++ is being compiled.
-               (setenv "CPLUS_INCLUDE_PATH" (getenv "C_INCLUDE_PATH"))
-               #t))))))))
+        #~(modify-phases #$phases
+            (add-before 'unpack 'unpack-g++
+              (lambda _
+                (let ((source-g++ (assoc-ref %build-inputs "gcc-g++")))
+                  (invoke "tar" "xvf" source-g++))))
+            (replace 'setenv
+              (lambda _
+                (setenv "CONFIG_SHELL" (which "sh"))
+
+                ;; Allow MPFR headers to be found.
+                (setenv "C_INCLUDE_PATH"
+                        (string-append (getcwd) "/mpfr/src:"
+                                       (getenv "C_INCLUDE_PATH")))
+
+                ;; Set the C++ search path so that C headers can be found as
+                ;; libstdc++ is being compiled.
+                (setenv "CPLUS_INCLUDE_PATH" (getenv "C_INCLUDE_PATH"))))))))))
 
 (define (%boot-mesboot2-inputs)
   `(("gcc" ,gcc-mesboot1)
@@ -2172,8 +2066,7 @@ ac_cv_c_float_format='IEEE (little-endian)'
              (substitute* "gprof/Makefile.in"
                (("^SUBDIRS = po") "SUBDIRS ="))
              (substitute* "ld/Makefile.in"
-               (("^SUBDIRS = po") "SUBDIRS ="))
-             #t)))))))
+               (("^SUBDIRS = po") "SUBDIRS =")))))))))
 
 (define (%boot-mesboot3-inputs)
   `(("binutils" ,binutils-mesboot)
@@ -2201,92 +2094,89 @@ ac_cv_c_float_format='IEEE (little-endian)'
     (arguments
      (substitute-keyword-arguments (package-arguments glibc-mesboot0)
        ((#:configure-flags configure-flags)
-        `(let ((out (assoc-ref %outputs "out"))
-               (headers (assoc-ref %build-inputs "headers")))
-           (list
-            (string-append "--prefix=" out)
-            "--disable-obsolete-rpc"
-            "--host=i686-unknown-linux-gnu"
-            (string-append "--with-headers=" headers "/include")
-            "--enable-static-nss"
-            "--with-pthread"
-            "--without-cvs"
-            "--without-gd"
-            "--enable-add-ons=nptl"
-            ;; avoid: configure: error: confusing output from nm -u
-            "libc_cv_predef_stack_protector=no")))
+        #~(let ((out (assoc-ref %outputs "out"))
+                (headers (assoc-ref %build-inputs "headers")))
+            (list
+             (string-append "--prefix=" out)
+             "--disable-obsolete-rpc"
+             "--host=i686-unknown-linux-gnu"
+             (string-append "--with-headers=" headers "/include")
+             "--enable-static-nss"
+             "--with-pthread"
+             "--without-cvs"
+             "--without-gd"
+             "--enable-add-ons=nptl"
+             ;; avoid: configure: error: confusing output from nm -u
+             "libc_cv_predef_stack_protector=no")))
        ((#:make-flags make-flags)
-        '(list "install-bootstrap-headers=yes" "install-headers"))
+        #~(list "install-bootstrap-headers=yes" "install-headers"))
        ((#:phases phases)
-        `(modify-phases ,phases
-           (delete 'apply-boot-patch)
-           (delete 'fixup-configure)
-           (delete 'set-path)
-           (replace 'unpack
-             (lambda* (#:key source #:allow-other-keys)
-               (invoke "tar" "xvf" source)
-               (chdir (string-append "glibc-" ,version))
-               #t))
-           (replace 'setenv
-             (lambda* (#:key inputs #:allow-other-keys)
-               (let* ((headers  (assoc-ref inputs "headers"))
-                      (libc     (assoc-ref inputs "libc"))
-                      (gcc      (assoc-ref inputs "gcc"))
-                      (cppflags (string-append
-                                 " -I " (getcwd) "/nptl/sysdeps/pthread/bits"
-                                 " -D BOOTSTRAP_GLIBC=1"))
-                      (cflags (string-append " -L " (getcwd)
-                                             " -L " libc "/lib")))
-                 (setenv "libc_cv_friendly_stddef" "yes")
-                 (setenv "CONFIG_SHELL" (which "sh"))
-                 (setenv "SHELL" (which "sh"))
-
-                 (setenv "CPP" (string-append gcc "/bin/gcc -E " cppflags))
-                 (setenv "CC" (string-append gcc "/bin/gcc " cppflags cflags))
-                 (setenv "LD" "gcc")
-
-                 ;; avoid -fstack-protector
-                 (setenv "libc_cv_ssp" "false")
-                 (substitute* "configure"
-                   (("/bin/pwd") "pwd"))
-                 #t)))
-           (replace 'install
-             (lambda* (#:key outputs make-flags #:allow-other-keys)
-               (let ((kernel-headers (assoc-ref %build-inputs "kernel-headers"))
-                     (out (assoc-ref outputs "out")))
-                 (and (apply invoke "make" make-flags)
-                      (copy-recursively kernel-headers out)
-                      #t))))
-           (replace 'configure
-             (lambda* (#:key configure-flags #:allow-other-keys)
-               (format (current-error-port) "running ../configure ~a\n" (string-join configure-flags))
-               (mkdir-p "build")
-               (chdir "build")
-               (apply invoke "../configure" configure-flags)))
-           (add-after 'configure 'remove-sunrpc
-             (lambda _
-               (let* ((out (assoc-ref %outputs "out"))
-                      (bash (assoc-ref %build-inputs "bash"))
-                      (shell (string-append bash "/bin/bash")))
-
-                 (let ((Makefile (open-file "Makefile" "a")))
-                   (display (string-append "
+        #~(modify-phases #$phases
+            (delete 'apply-boot-patch)
+            (delete 'fixup-configure)
+            (delete 'set-path)
+            (replace 'unpack
+              (lambda* (#:key source #:allow-other-keys)
+                (invoke "tar" "xvf" source)
+                (chdir (string-append "glibc-" #$version))))
+            (replace 'setenv
+              (lambda* (#:key inputs #:allow-other-keys)
+                (let* ((headers  (assoc-ref inputs "headers"))
+                       (libc     (assoc-ref inputs "libc"))
+                       (gcc      (assoc-ref inputs "gcc"))
+                       (cppflags (string-append
+                                  " -I " (getcwd) "/nptl/sysdeps/pthread/bits"
+                                  " -D BOOTSTRAP_GLIBC=1"))
+                       (cflags (string-append " -L " (getcwd)
+                                              " -L " libc "/lib")))
+                  (setenv "libc_cv_friendly_stddef" "yes")
+                  (setenv "CONFIG_SHELL" (which "sh"))
+                  (setenv "SHELL" (which "sh"))
+
+                  (setenv "CPP" (string-append gcc "/bin/gcc -E " cppflags))
+                  (setenv "CC" (string-append gcc "/bin/gcc " cppflags cflags))
+                  (setenv "LD" "gcc")
+
+                  ;; avoid -fstack-protector
+                  (setenv "libc_cv_ssp" "false")
+                  (substitute* "configure"
+                    (("/bin/pwd") "pwd")))))
+            (replace 'install
+              (lambda* (#:key outputs make-flags #:allow-other-keys)
+                (let ((kernel-headers (assoc-ref %build-inputs "kernel-headers"))
+                      (out (assoc-ref outputs "out")))
+                  (apply invoke "make" make-flags)
+                  (copy-recursively kernel-headers out))))
+            (replace 'configure
+              (lambda* (#:key configure-flags #:allow-other-keys)
+                (format (current-error-port) "running ../configure ~a\n"
+                        (string-join configure-flags))
+                (mkdir-p "build")
+                (chdir "build")
+                (apply invoke "../configure" configure-flags)))
+            (add-after 'configure 'remove-sunrpc
+              (lambda _
+                (let* ((out (assoc-ref %outputs "out"))
+                       (bash (assoc-ref %build-inputs "bash"))
+                       (shell (string-append bash "/bin/bash")))
+
+                  (let ((Makefile (open-file "Makefile" "a")))
+                    (display (string-append "
 
 SHELL := " shell "
 ")
-                            Makefile)
-                   (close Makefile))
-                 (substitute* "../Makefile"
-                   (("^SHELL := /bin/sh") (string-append "SHELL := " shell)))
-                 (substitute* "../Makeconfig"
-                   (("^SHELL := /bin/sh") (string-append "SHELL := " shell)))
-                 (substitute* "../elf/Makefile"
-                   (("^SHELL := /bin/sh") (string-append "SHELL := " shell)))
-                 (invoke "make" (string-append (getcwd) "/sysd-sorted" ))
-                 (substitute* "sysd-sorted"
-                   ((" sunrpc") " ")
-                   ((" nis") " "))
-                 #t)))))))))
+                             Makefile)
+                    (close Makefile))
+                  (substitute* "../Makefile"
+                    (("^SHELL := /bin/sh") (string-append "SHELL := " shell)))
+                  (substitute* "../Makeconfig"
+                    (("^SHELL := /bin/sh") (string-append "SHELL := " shell)))
+                  (substitute* "../elf/Makefile"
+                    (("^SHELL := /bin/sh") (string-append "SHELL := " shell)))
+                  (invoke "make" (string-append (getcwd) "/sysd-sorted" ))
+                  (substitute* "sysd-sorted"
+                    ((" sunrpc") " ")
+                    ((" nis") " ")))))))))))
 
 (define glibc-mesboot
   (package
@@ -2298,18 +2188,17 @@ SHELL := " shell "
      `(#:validate-runpath? #f ; fails when using --enable-shared
        ,@(substitute-keyword-arguments (package-arguments glibc-headers-mesboot)
            ((#:make-flags make-flags)
-            `(let ((bash (assoc-ref %build-inputs "bash")))
-               (list (string-append "SHELL=" bash "/bin/sh"))))
+            #~(let ((bash (assoc-ref %build-inputs "bash")))
+                (list (string-append "SHELL=" bash "/bin/sh"))))
            ((#:phases phases)
-            `(modify-phases ,phases
-               (replace 'install
-                 (lambda* (#:key outputs make-flags #:allow-other-keys)
-                   (let* ((kernel-headers (assoc-ref %build-inputs "kernel-headers"))
-                          (out (assoc-ref outputs "out"))
-                          (install-flags (cons "install" make-flags)))
-                     (and (apply invoke "make" install-flags)
-                          (copy-recursively kernel-headers out)
-                          #t)))))))))))
+            #~(modify-phases #$phases
+                (replace 'install
+                  (lambda* (#:key outputs make-flags #:allow-other-keys)
+                    (let* ((kernel-headers (assoc-ref %build-inputs "kernel-headers"))
+                           (out (assoc-ref outputs "out"))
+                           (install-flags (cons "install" make-flags)))
+                      (apply invoke "make" install-flags)
+                      (copy-recursively kernel-headers out)))))))))))
 
 (define (%boot-mesboot4-inputs)
   `(("libc" ,glibc-mesboot)
@@ -2364,8 +2253,7 @@ exec " gcc "/bin/" program
                   "g++"
                   "i686-unknown-linux-gnu-cpp"
                   "i686-unknown-linux-gnu-gcc"
-                  "i686-unknown-linux-gnu-g++"))
-               #t)))
+                  "i686-unknown-linux-gnu-g++")))))
          (replace 'check
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
@@ -2380,81 +2268,80 @@ exec " gcc "/bin/" program
     (version (package-version gcc-4.9))
     (source (bootstrap-origin (package-source gcc-4.9)))
     (native-inputs `(("gcc-wrapper" ,gcc-mesboot1-wrapper)
-                     ("gcc" ,gcc-mesboot1)
                      ("headers" ,glibc-headers-mesboot)
                      ,@(%boot-mesboot4-inputs)))
     (arguments
      `(#:validate-runpath? #f
        ,@(substitute-keyword-arguments (package-arguments gcc-mesboot1)
            ((#:configure-flags configure-flags)
-            `(let ((out (assoc-ref %outputs "out"))
-                   (glibc (assoc-ref %build-inputs "libc")))
-               (list (string-append "--prefix=" out)
-                     "--build=i686-unknown-linux-gnu"
-                     "--host=i686-unknown-linux-gnu"
-
-                     "--with-host-libstdcxx=-lsupc++"
-
-                     (string-append "--with-native-system-header-dir=" glibc "/include")
-                     (string-append "--with-build-sysroot=" glibc "/include")
-
-                     "--disable-bootstrap"
-                     "--disable-decimal-float"
-                     "--disable-libatomic"
-                     "--disable-libcilkrts"
-                     "--disable-libgomp"
-                     "--disable-libitm"
-                     "--disable-libmudflap"
-                     "--disable-libquadmath"
-                     "--disable-libsanitizer"
-                     "--disable-libssp"
-                     "--disable-libvtv"
-                     "--disable-lto"
-                     "--disable-lto-plugin"
-                     "--disable-multilib"
-                     "--disable-plugin"
-                     "--disable-threads"
-                     "--enable-languages=c,c++"
-
-                     "--enable-static"
-                     "--enable-shared"
-                     "--enable-threads=single"
-
-                     ;; No pre-compiled libstdc++ headers, to save space.
-                     "--disable-libstdcxx-pch"
-
-                     ;; for libcpp ...
-                     "--disable-build-with-cxx")))
+            #~(let ((out (assoc-ref %outputs "out"))
+                    (glibc (assoc-ref %build-inputs "libc")))
+                (list (string-append "--prefix=" out)
+                      "--build=i686-unknown-linux-gnu"
+                      "--host=i686-unknown-linux-gnu"
+
+                      "--with-host-libstdcxx=-lsupc++"
+
+                      (string-append "--with-native-system-header-dir=" glibc "/include")
+                      (string-append "--with-build-sysroot=" glibc "/include")
+
+                      "--disable-bootstrap"
+                      "--disable-decimal-float"
+                      "--disable-libatomic"
+                      "--disable-libcilkrts"
+                      "--disable-libgomp"
+                      "--disable-libitm"
+                      "--disable-libmudflap"
+                      "--disable-libquadmath"
+                      "--disable-libsanitizer"
+                      "--disable-libssp"
+                      "--disable-libvtv"
+                      "--disable-lto"
+                      "--disable-lto-plugin"
+                      "--disable-multilib"
+                      "--disable-plugin"
+                      "--disable-threads"
+                      "--enable-languages=c,c++"
+
+                      "--enable-static"
+                      "--enable-shared"
+                      "--enable-threads=single"
+
+                      ;; No pre-compiled libstdc++ headers, to save space.
+                      "--disable-libstdcxx-pch"
+
+                      ;; for libcpp ...
+                      "--disable-build-with-cxx")))
            ((#:phases phases)
-            `(modify-phases ,phases
-               (delete 'apply-boot-patch)
-               (delete 'unpack-g++)     ; sadly, gcc-4.9.4 does not provide
-                                        ; modular core/language downloads
-               (replace 'setenv
-                 (lambda* (#:key outputs #:allow-other-keys)
-                   (let* ((out (assoc-ref outputs "out"))
-                          (binutils (assoc-ref %build-inputs "binutils"))
-                          (bash (assoc-ref %build-inputs "bash"))
-                          (gcc (assoc-ref %build-inputs "gcc"))
-                          (glibc (assoc-ref %build-inputs "libc"))
-                          (kernel-headers (assoc-ref %build-inputs "kernel-headers")))
-                     (setenv "CONFIG_SHELL" (string-append bash "/bin/sh"))
-                     (setenv "C_INCLUDE_PATH" (string-append
-                                               gcc "/lib/gcc-lib/i686-unknown-linux-gnu/4.6.4/include"
-                                               ":" kernel-headers "/include"
-                                               ":" glibc "/include"
-                                               ":" (getcwd) "/mpfr/src"))
-                     (setenv "CPLUS_INCLUDE_PATH" (string-append
-                                                   gcc "/lib/gcc-lib/i686-unknown-linux-gnu/4.6.4/include"
-                                                   ":" kernel-headers "/include"
-                                                   ":" glibc "/include"
-                                                   ":" (getcwd) "/mpfr/src"))
-                     (setenv "LIBRARY_PATH" (string-append glibc "/lib"
-                                                           ":" gcc "/lib"))
-                     (format (current-error-port) "C_INCLUDE_PATH=~a\n" (getenv "C_INCLUDE_PATH"))
-                     (format (current-error-port) "CPLUS_INCLUDE_PATH=~a\n" (getenv "CPLUS_INCLUDE_PATH"))
-                     (format (current-error-port) "LIBRARY_PATH=~a\n" (getenv "LIBRARY_PATH"))
-                     #t))))))))))
+            #~(modify-phases #$phases
+                (delete 'apply-boot-patch)
+                (delete 'unpack-g++)     ; sadly, gcc-4.9.4 does not provide
+                                                  ; modular core/language downloads
+                (replace 'setenv
+                  (lambda* (#:key outputs #:allow-other-keys)
+                    (let* ((out (assoc-ref outputs "out"))
+                           (binutils (assoc-ref %build-inputs "binutils"))
+                           (bash (assoc-ref %build-inputs "bash"))
+                           (gcc (assoc-ref %build-inputs "gcc"))
+                           (glibc (assoc-ref %build-inputs "libc"))
+                           (kernel-headers (assoc-ref %build-inputs "kernel-headers")))
+                      (setenv "CONFIG_SHELL" (string-append bash "/bin/sh"))
+                      (setenv "C_INCLUDE_PATH" (string-append
+                                                gcc "/lib/gcc-lib/i686-unknown-linux-gnu/4.6.4/include"
+                                                ":" kernel-headers "/include"
+                                                ":" glibc "/include"
+                                                ":" (getcwd) "/mpfr/src"))
+                      (setenv "CPLUS_INCLUDE_PATH" (string-append
+                                                    gcc "/lib/gcc-lib/i686-unknown-linux-gnu/4.6.4/include"
+                                                    ":" kernel-headers "/include"
+                                                    ":" glibc "/include"
+                                                    ":" (getcwd) "/mpfr/src"))
+                      (setenv "LIBRARY_PATH" (string-append glibc "/lib"
+                                                            ":" gcc "/lib"))
+                      (format (current-error-port) "C_INCLUDE_PATH=~a\n" (getenv "C_INCLUDE_PATH"))
+                      (format (current-error-port) "CPLUS_INCLUDE_PATH=~a\n" (getenv "CPLUS_INCLUDE_PATH"))
+                      (format (current-error-port) "LIBRARY_PATH=~a\n"
+                              (getenv "LIBRARY_PATH"))))))))))))
 
 (define gcc-mesboot-wrapper
   ;; We need this so gcc-mesboot can be used to create shared binaries that
@@ -2506,6 +2393,7 @@ exec " gcc "/bin/" program
 (define gnu-make-boot0
   (package
     (inherit gnu-make)
+    (outputs (delete "debug" (package-outputs gnu-make)))
     (source (bootstrap-origin (package-source gnu-make)))
     (name "make-boot0")
     (arguments
@@ -2517,7 +2405,16 @@ exec " gcc "/bin/" program
             ;; The generated config.status has some problems due to the
             ;; bootstrap environment.  Disable dependency tracking to work
             ;; around it.
-            `(cons "--disable-dependency-tracking" ,flags))
+            `(cons "--disable-dependency-tracking"
+
+                   ;; 'glibc-bootstrap' on non-x86 platforms has a buggy
+                   ;; 'posix_spawn'.  Thus, disable it.  See
+                   ;; <https://bugs.gnu.org/49367>.
+                   ,(match (%current-system)
+                      ((or "i686-linux" "x86_64-linux")
+                       flags)
+                      (_
+                       `(cons "--disable-posix-spawn" ,flags)))))
            ((#:phases phases)
             `(modify-phases ,phases
                (replace 'build
@@ -2527,8 +2424,7 @@ exec " gcc "/bin/" program
                  (lambda* (#:key outputs #:allow-other-keys)
                    (let* ((out (assoc-ref outputs "out"))
                           (bin (string-append out "/bin")))
-                     (install-file "make" bin)
-                     #t))))))))
+                     (install-file "make" bin)))))))))
     (native-inputs '())                           ; no need for 'pkg-config'
     (inputs (%bootstrap-inputs+toolchain))))
 
@@ -2549,6 +2445,7 @@ exec " gcc "/bin/" program
 (define coreutils-boot0
   (package
     (inherit coreutils)
+    (outputs (delete "debug" (package-outputs coreutils)))
     (source (bootstrap-origin (package-source coreutils)))
     (name "coreutils-boot0")
     (native-inputs `())
@@ -2565,6 +2462,9 @@ exec " gcc "/bin/" program
   (package
     (inherit diffutils)
     (name "diffutils-boot0")
+    (source (origin
+              (inherit (package-source diffutils))
+              (patches '())))                 ;patches for tests unneeded here
     (native-inputs `())
     (inputs
      `(("make" ,gnu-make-boot0)
@@ -2594,6 +2494,8 @@ exec " gcc "/bin/" program
        ,@(%bootstrap-inputs+toolchain)))
     (arguments
      `(#:implicit-inputs? #f
+       ;; Ignore test failure in gnulib for armhf/aarch64.
+       #:tests? ,(not (target-arm?))
        #:guile ,%bootstrap-guile
 
        ;; The build system assumes we have done a mistake when time_t is 32-bit
@@ -2608,7 +2510,20 @@ exec " gcc "/bin/" program
                  ((or "arm-linux" "aarch64-linux")
                   ''("--disable-dependency-tracking"))
                  (_ ''()))
-              ,flags)))))))
+              ,flags))
+           ((#:phases phases '%standard-phases)
+            `(modify-phases ,phases
+              ;; 'test-fnmatch' fails when using glibc-mesboot@2.16, due
+              ;; to incorrect handling of the [:alpha:] regexp character
+              ;; class.  Ignore it.
+               ,@(if (member (%current-system)
+                             '("x86_64-linux" "i686-linux"))
+                     '((add-before 'check 'skip-fnmatch-test
+                         (lambda _
+                           (substitute* "gnulib-tests/Makefile"
+                             (("^XFAIL_TESTS =")
+                              "XFAIL_TESTS = test-fnmatch ")))))
+                     '()))))))))
 
 (define file
   (package
@@ -2640,7 +2555,7 @@ exec " gcc "/bin/" program
 
 (define gawk-boot0
   (package
-    (inherit patch)
+    (inherit gawk)
     (source (bootstrap-origin (package-source gawk)))
     (name "gawk-boot0")
     (native-inputs '())
@@ -2753,8 +2668,7 @@ exec " gcc "/bin/" program
                         (with-directory-excursion (string-append out "/bin")
                           (for-each (lambda (name)
                                       (symlink name (remove-triplet-prefix name)))
-                                    (scandir "." has-triplet-prefix?)))
-                        #t))))
+                                    (scandir "." has-triplet-prefix?)))))))
 
        ,@(substitute-keyword-arguments (package-arguments binutils)
            ((#:configure-flags cf)
@@ -2789,8 +2703,7 @@ exec " gcc "/bin/" program
                       ;; fail, which in turn confuses the configure script.
                       (lambda _
                         (substitute* "libstdc++-v3/configure"
-                          (("g\\+\\+ -v") "true"))
-                        #t))))))
+                          (("g\\+\\+ -v") "true"))))))))
              (_ (package-arguments lib)))))
       (inputs (%boot0-inputs))
       (native-inputs '()))))
@@ -2799,6 +2712,7 @@ exec " gcc "/bin/" program
   (package
     (inherit gcc)
     (name "gcc-cross-boot0")
+    (outputs (delete "debug" (package-outputs gcc)))
     (source (bootstrap-origin (package-source gcc)))
     (arguments
      `(#:guile ,%bootstrap-guile
@@ -2819,13 +2733,6 @@ exec " gcc "/bin/" program
                            "--disable-shared"
                            "--enable-languages=c,c++"
 
-                           ;; boot-triplet inserts "guix" in the triplet.
-                           ,@(if (equal? "powerpc64le-guix-linux-gnu" (boot-triplet))
-                                 ;; On POWER9 (little endian) glibc needs the
-                                 ;; 128-bit long double type.
-                                 '("--with-long-double-128")
-                                 '())
-
                            ;; libstdc++ cannot be built at this stage
                            ;; ("Link tests are not allowed after
                            ;; GCC_NO_EXECUTABLES.").
@@ -2879,8 +2786,7 @@ exec " gcc "/bin/" program
                                           (package-full-name lib "-")
                                           char-set:letter)
                                         ,(package-name lib)))
-                            (list gmp-6.0 mpfr mpc))
-                     #t)))
+                            (list gmp-6.0 mpfr mpc)))))
                ,(match (%current-system)
                   ((or "i686-linux" "x86_64-linux")
                    '(add-before 'configure 'fix-libcc1
@@ -2893,8 +2799,7 @@ exec " gcc "/bin/" program
                                           (assoc-ref inputs "gcc") "/lib")))
                         ;; XXX: "g++ -v" is broken (see also libstdc++ above).
                         (substitute* "libcc1/configure"
-                          (("g\\+\\+ -v") "true"))
-                        #t)))
+                          (("g\\+\\+ -v") "true")))))
                   (_ '(add-before 'configure 'return-true
                         (lambda _ #t))))
                (add-after 'install 'symlink-libgcc_eh
@@ -2906,8 +2811,7 @@ exec " gcc "/bin/" program
                          (string-append out "/lib/gcc/"
                                         ,(boot-triplet)
                                         "/" ,(package-version gcc))
-                       (symlink "libgcc.a" "libgcc_eh.a"))
-                     #t))))))))
+                       (symlink "libgcc.a" "libgcc_eh.a"))))))))))
 
     (inputs `(("gmp-source" ,(bootstrap-origin (package-source gmp-6.0)))
               ("mpfr-source" ,(bootstrap-origin (package-source mpfr)))
@@ -2948,8 +2852,7 @@ exec " gcc "/bin/" program
                  (lambda _
                    (substitute* "Configure"
                      (("^libswanted=(.*)pthread" _ before)
-                      (string-append "libswanted=" before)))
-                   #t))))
+                      (string-append "libswanted=" before)))))))
            ;; Do not configure with '-Dusethreads' since pthread
            ;; support is missing.
            ((#:configure-flags configure-flags)
@@ -2992,6 +2895,15 @@ exec " gcc "/bin/" program
                            "RANLIB=ranlib -D"))
                       "V=1")
 
+       ;; 'glibc-bootstrap' on non-x86 platforms has a buggy 'posix_spawn'.
+       ;; Thus, use the Gnulib replacement instead.  See
+       ;; <https://bugs.gnu.org/49367>.
+       ,@(match (%current-system)
+           ((or "i686-linux" "x86_64-linux")
+            '())
+           (_
+            '(#:configure-flags '("gl_cv_func_posix_spawn_works=no"))))
+
        ,@(package-arguments bison)))))
 
 (define flex-boot0
@@ -3006,15 +2918,6 @@ exec " gcc "/bin/" program
        #:guile ,%bootstrap-guile
        #:tests? #f))))
 
-(define rsync-boot0
-  (package
-    (inherit rsync)
-    (native-inputs `(("perl" ,perl-boot0)))
-    (inputs (%boot0-inputs))
-    (arguments
-     `(#:implicit-inputs? #f
-       #:guile ,%bootstrap-guile))))
-
 (define-syntax define/system-dependent
   (lambda (s)
     "Bind IDENTIFIER to EXP, where the value of EXP is known to depend on
@@ -3050,9 +2953,6 @@ memoized as a function of '%current-system'."
        ;; Flex and Bison are required since version 4.16.
        ("flex" ,flex-boot0)
        ("bison" ,bison-boot0)
-
-       ;; Rsync is required since version 5.3.
-       ("rsync" ,rsync-boot0)
        ,@(%boot0-inputs)))))
 
 (define with-boot0
@@ -3155,6 +3055,7 @@ memoized as a function of '%current-system'."
   (package
     (inherit expat)
     (inputs (%boot0-inputs))
+    (outputs '("out"))
     (arguments
      ;; XXX: Linking 'runtestscpp' fails with things like:
      ;;
@@ -3169,6 +3070,7 @@ memoized as a function of '%current-system'."
             ;; Since we're not passing the right -Wl,-rpath flags, build the
             ;; static library to avoid RUNPATH validation failure.
             `(cons "--disable-shared" ,flags))
+           ((#:phases phases) '%standard-phases)
            ((#:tests? _ #f) #f))))))
 
 (define python-boot0
@@ -3195,54 +3097,54 @@ memoized as a function of '%current-system'."
                    (substitute* "Modules/Setup.dist"
                      ;; Link Expat instead of embedding the bundled one.
                      (("^#pyexpat.*") "pyexpat pyexpat.c -lexpat\n"))
-                   #t)))))
+                   ;; Delete windows binaries
+                   (for-each delete-file
+                             (find-files "Lib/distutils/command" ".*.exe$"))
+                   (for-each delete-file
+                             (find-files "Lib/ensurepip" ".*.whl$")))))))
     (inputs
      `(,@(%boot0-inputs)
        ("expat" ,expat-sans-tests)))              ;remove OpenSSL, zlib, etc.
-    (native-inputs '())                           ;and pkg-config
+    (native-inputs                                ;and pkg-config
+     `(("sitecustomize.py" ,(local-file (search-auxiliary-file
+                                         "python/sitecustomize.py")))))
     (arguments
      `(#:implicit-inputs? #f
        #:guile ,%bootstrap-guile
-
-       ,@(substitute-keyword-arguments (package-arguments python-minimal)
-           ;; Disable features that cannot be built at this stage.
-           ((#:configure-flags _ ''())
-            `(list "--without-ensurepip"
-                   "--without-threads"))
-           ;; Clear #:make-flags, such that changes to the regular
-           ;; Python package won't interfere with this one.
-           ((#:make-flags _ ''()) ''())
-           ((#:phases phases)
-            ;; Remove the 'apply-alignment-patch' phase if present to avoid
-            ;; rebuilding this package.  TODO: for the next rebuild cycle,
-            ;; consider inlining all the arguments instead of inheriting to
-            ;; make it easier to patch Python without risking a full rebuild.
-            ;; Or better yet, change to 'python-on-guile'.
-            `(modify-phases ,@(list (match phases
-                                      (('modify-phases original-phases
-                                         changes ...
-                                         ('add-after unpack apply-alignment-patch _))
-                                       `(modify-phases ,original-phases ,@changes))
-                                      (_ phases)))
-               (add-before 'configure 'disable-modules
-                 (lambda _
-                   (substitute* "setup.py"
-                     ;; Disable ctypes, since it requires libffi.
-                     (("extensions\\.append\\(ctypes\\)") "")
-                     ;; Prevent the 'ossaudiodev' extension from being
-                     ;; built, since it requires Linux headers.
-                     (("'linux', ") ""))
-                   #t))
-               (delete 'set-TZDIR)
-               ,@(if (hurd-system?)
-                     `((add-before 'build 'fix-regen
-                         (lambda* (#:key inputs #:allow-other-keys)
-                           (let ((libc (assoc-ref inputs "libc")))
-                             (substitute* "Lib/plat-generic/regen"
-                               (("/usr/include/") (string-append libc "/include/")))
-                             #t))))
-                     '())))
-           ((#:tests? _ #f) #f))))))
+       ;; Running the tests won't work because we lack several required
+       ;; modules (OpenSSL, etc).
+       #:tests? #f
+       ;; Disable features that cannot be built at this stage.
+       #:configure-flags '("--without-ensurepip" "--without-threads")
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'patch-lib-shells
+           (lambda _
+             (substitute* '("Lib/subprocess.py"
+                            "Lib/distutils/tests/test_spawn.py"
+                            "Lib/test/support/__init__.py"
+                            "Lib/test/test_subprocess.py")
+               (("/bin/sh") (which "sh")))))
+         (add-before 'configure 'disable-modules
+           (lambda _
+             (substitute* "setup.py"
+               ;; Disable ctypes, since it requires libffi.
+               (("extensions\\.append\\(ctypes\\)") "")
+               ;; Prevent the 'ossaudiodev' extension from being
+               ;; built, since it requires Linux headers.
+               (("'linux', ") ""))))
+         ,@(if (hurd-system?)
+               `((add-before 'build 'fix-regen
+                   (lambda* (#:key inputs #:allow-other-keys)
+                     (let ((libc (assoc-ref inputs "libc")))
+                       (substitute* "Lib/plat-generic/regen"
+                         (("/usr/include/")
+                          (string-append libc "/include/")))))))
+               '())
+         (add-after 'install 'install-sitecustomize.py
+           ,(customize-site version)))))
+    (native-search-paths
+     (list (guix-pythonpath-search-path version)))))
 
 (define/system-dependent ld-wrapper-boot0
   ;; The first 'ld' wrapper, defined with 'define/system-dependent' because
@@ -3272,6 +3174,7 @@ memoized as a function of '%current-system'."
   (package
     (inherit glibc)
     (name "glibc-intermediate")
+    (outputs (delete "debug" (package-outputs glibc)))
     (source (bootstrap-origin (package-source glibc)))
     (arguments
      `(#:guile ,%bootstrap-guile
@@ -3289,9 +3192,9 @@ memoized as a function of '%current-system'."
             `(modify-phases ,phases
                (add-before 'configure 'pre-configure
                  (lambda* (#:key inputs #:allow-other-keys)
-                   ;; Don't clobber CPATH with the bootstrap libc.
-                   (setenv "NATIVE_CPATH" (getenv "CPATH"))
-                   (unsetenv "CPATH")
+                   ;; Don't clobber include paths with the bootstrap libc.
+                   (unsetenv "C_INCLUDE_PATH")
+                   (unsetenv "CPLUS_INCLUDE_PATH")
 
                    ;; Tell 'libpthread' where to find 'libihash' on Hurd systems.
                    ,@(if (hurd-system?)
@@ -3301,25 +3204,13 @@ memoized as a function of '%current-system'."
                             (string-append "LDLIBS-pthread.so = "
                                            (assoc-ref %build-inputs "kernel-headers")
                                            "/lib/libihash.a\n"))))
-                       '())
-
-                   ;; 'rpcgen' needs native libc headers to be built.
-                   (substitute* "sunrpc/Makefile"
-                     (("sunrpc-CPPFLAGS =.*" all)
-                      (string-append "CPATH = $(NATIVE_CPATH)\n"
-                                     "export CPATH\n"
-                                     all "\n")))
-                   #t)))))))
+                       '()))))))))
     (propagated-inputs `(("kernel-headers" ,(kernel-headers-boot0))))
     (native-inputs
      `(("bison" ,bison-boot0)
        ("texinfo" ,texinfo-boot0)
        ("perl" ,perl-boot0)
-       ("python" ,python-boot0)
-       ,@(if (target-powerpc?)
-           `(("powerpc64le-patch" ,@(search-patches
-                                      "glibc-ldd-powerpc.patch")))
-           '())))
+       ("python" ,python-boot0)))
     (inputs
      `( ;; The boot inputs.  That includes the bootstrap libc.  We don't want
        ;; it in $CPATH, hence the 'pre-configure' phase above.
@@ -3330,9 +3221,6 @@ memoized as a function of '%current-system'."
              `(("mig" ,mig-boot0))
              '())
 
-       ;; A native GCC is needed to build `cross-rpcgen'.
-       ("native-gcc" ,@(assoc-ref (%boot0-inputs) "gcc"))
-
        ;; Here, we use the bootstrap Bash, which is not satisfactory
        ;; because we don't want to depend on bootstrap tools.
        ("static-bash" ,@(assoc-ref (%boot0-inputs) "bash"))))))
@@ -3380,9 +3268,7 @@ exec ~a/bin/~a-~a -B~a/lib -Wl,-dynamic-linker -Wl,~a/~a \"$@\"~%"
                                                            triplet "-" tool)
                                             tool))
                                  '("ar" "ranlib"))
-                       (for-each wrap-program '("gcc" "g++")))
-
-                     #t))))
+                       (for-each wrap-program '("gcc" "g++")))))))
     (native-inputs
      `(("binutils" ,binutils)
        ("gcc" ,gcc)
@@ -3445,16 +3331,14 @@ exec ~a/bin/~a-~a -B~a/lib -Wl,-dynamic-linker -Wl,~a/~a \"$@\"~%"
                   ;; Build only the tools.
                   (add-after 'unpack 'chdir
                     (lambda _
-                      (chdir "gettext-tools")
-                      #t))
+                      (chdir "gettext-tools")))
 
                   ;; Some test programs require pthreads, which we don't have.
                   (add-before 'configure 'no-test-programs
                     (lambda _
                       (substitute* "tests/Makefile.in"
                         (("^PROGRAMS =.*$")
-                         "PROGRAMS =\n"))
-                      #t)))))))
+                         "PROGRAMS =\n")))))))))
 
 (define glibc-final
   ;; The final glibc, which embeds the statically-linked Bash built above.
@@ -3470,10 +3354,6 @@ exec ~a/bin/~a-~a -B~a/lib -Wl,-dynamic-linker -Wl,~a/~a \"$@\"~%"
 
    ;; This time we need 'msgfmt' to install all the libc.mo files.
    (native-inputs `(,@(package-native-inputs glibc-final-with-bootstrap-bash)
-                     ,@(if (target-powerpc?)
-                         `(("powerpc64le-patch" ,@(search-patches
-                                                    "glibc-ldd-powerpc.patch")))
-                         '())
                     ("gettext" ,gettext-boot0)))
 
    (propagated-inputs
@@ -3484,7 +3364,7 @@ exec ~a/bin/~a-~a -B~a/lib -Wl,-dynamic-linker -Wl,~a/~a \"$@\"~%"
    ;; if 'allowed-references' were per-output.
    (arguments
     `(#:allowed-references
-      ((,gcc-boot0 "lib")
+      (,(gexp-input gcc-boot0 "lib")
        ,(kernel-headers-boot0)
        ,static-bash-for-glibc
        ,@(if (hurd-system?)
@@ -3635,8 +3515,7 @@ exec ~a/bin/~a-~a -B~a/lib -Wl,-dynamic-linker -Wl,~a/~a \"$@\"~%"
                                            (package-full-name lib "-")
                                            char-set:letter)
                                          ,(package-name lib)))
-                             (list gmp-6.0 mpfr mpc))
-                      #t))))))))
+                             (list gmp-6.0 mpfr mpc))))))))))
 
     ;; This time we want Texinfo, so we get the manual.  Add
     ;; STATIC-BASH-FOR-GLIBC so that it's used in the final shebangs of
@@ -3925,7 +3804,7 @@ is the GNU Compiler Collection.")
   (make-gcc-toolchain gcc-6))
 
 (define-public gcc-toolchain-7
-  gcc-toolchain)
+  (make-gcc-toolchain gcc-7))
 
 (define-public gcc-toolchain-8
   (make-gcc-toolchain gcc-8))
@@ -3934,7 +3813,7 @@ is the GNU Compiler Collection.")
   (make-gcc-toolchain gcc-9))
 
 (define-public gcc-toolchain-10
-  (make-gcc-toolchain gcc-10))
+  gcc-toolchain)
 
 (define-public gcc-toolchain-11
   (make-gcc-toolchain gcc-11))
diff --git a/gnu/packages/compression.scm b/gnu/packages/compression.scm
index cf4ec4e644..c6ddfb4333 100644
--- a/gnu/packages/compression.scm
+++ b/gnu/packages/compression.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2017, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2017, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2014, 2015, 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
@@ -32,6 +32,7 @@
 ;;; Copyright © 2020 Léo Le Bouter <lle-bout@zaclys.net>
 ;;; Copyright © 2021 Antoine Côté <antoine.cote@posteo.net>
 ;;; Copyright © 2021 Vincent Legoll <vincent.legoll@gmail.com>
+;;; Copyright © 2021 Simon Tournier <zimon.toutoune@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -483,7 +484,7 @@ compressed with pbzip2 can be decompressed with bzip2).")
 (define-public xz
   (package
    (name "xz")
-   (version "5.2.4")
+   (version "5.2.5")
    (source (origin
             (method url-fetch)
             (uri (list (string-append "http://tukaani.org/xz/xz-" version
@@ -492,7 +493,7 @@ compressed with pbzip2 can be decompressed with bzip2).")
                                       version ".tar.gz")))
             (sha256
              (base32
-              "0ibi2zsfaz6l756spjwc5rayf4ckgc9hwmy8qinppcyk4svz64mm"))))
+              "045s9agl3bpv3swlwydhgsqh7791957vmgw2plw8f1rks07r3x7n"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
@@ -543,9 +544,9 @@ than gzip and 15 % smaller output than bzip2.")
        (modify-phases %standard-phases
          (add-before 'check 'set-up-test-environment
            (lambda* (#:key inputs #:allow-other-keys)
-             (setenv "TZDIR" (string-append (assoc-ref inputs "tzdata")
-                                            "/share/zoneinfo"))
-             #t)))))
+             (setenv "TZDIR"
+                     (search-input-directory inputs
+                                             "share/zoneinfo")))))))
     (native-inputs
      `(("tzdata" ,tzdata-for-tests)))
     (home-page "https://fragglet.github.com/lhasa/")
@@ -610,14 +611,14 @@ some compression ratio).")
 (define-public lzip
   (package
     (name "lzip")
-    (version "1.21")
+    (version "1.22")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://savannah/lzip/lzip-"
                                  version ".tar.gz"))
              (sha256
               (base32
-               "12qdcw5k1cx77brv9yxi1h4dzwibhfmdpigrj43nfk8nscwm12z4"))))
+               "0j59hx72258334rmkwn57ahr6s69nlrx0a5ip1jw2fbiwr12sd63"))))
     (build-system gnu-build-system)
     (home-page "https://www.nongnu.org/lzip/lzip.html")
     (synopsis "Lossless data compressor based on the LZMA algorithm")
@@ -1276,8 +1277,8 @@ for most inputs, but the resulting compressed files are anywhere from 20% to
              (let ((gcc (assoc-ref (or native-inputs inputs) "gcc")))
                (setenv "CPLUS_INCLUDE_PATH"
                        (string-join
-                        (cons* (string-append (assoc-ref inputs "libcxx+libcxxabi")
-                                              "/include/c++/v1")
+                        (cons* (search-input-directory inputs
+                                                       "/include/c++/v1")
                                ;; Hide GCC's C++ headers so that they do not interfere with
                                ;; the Clang headers.
                                (delete (string-append gcc "/include/c++")
@@ -1563,15 +1564,14 @@ or junctions, and always follows hard links.")
 (define-public zstd
   (package
     (name "zstd")
-    (version "1.4.4")
+    (version "1.5.0")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://github.com/facebook/zstd/releases/download/"
                            "v" version "/zstd-" version ".tar.gz"))
        (sha256
-        (base32 "05ckxap00qvc0j51d3ci38150cxsw82w7s9zgd5fgzspnzmp1vsr"))))
-    (replacement zstd/fixed)
+        (base32 "150y541303vnvfhd8wkbih00lfvvm98rd12yijwlbkqzg3xgp52i"))))
     (build-system gnu-build-system)
     (outputs '("out"                    ;1.2MiB executables and documentation
                "lib"                    ;1.2MiB shared library and headers
@@ -1579,6 +1579,26 @@ or junctions, and always follows hard links.")
     (arguments
      `(#:phases
        (modify-phases %standard-phases
+         (add-after 'unpack 'remove-bogus-check
+           (lambda _
+             ;; lib/Makefile falsely claims that no .pc file can be created.
+             (substitute* "lib/Makefile"
+               (("error configured .*dir ")
+                "true "))
+             #t))
+         (add-after 'unpack 'patch-command-file-names
+           ;; Don't require hard requirements to be in $PATH.
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (our (lambda (name) (string-append out "/bin/" name))))
+               (substitute* "programs/zstdgrep"
+                 (("(:-)(grep)" _ prefix command)
+                  (string-append prefix (which command)))
+                 (("(:-)(zstdcat)" _ prefix command)
+                  (string-append prefix (our command))))
+               (substitute* "programs/zstdless"
+                 (("zstdcat" command)
+                  (our command))))))
          (delete 'configure)            ;no configure script
          (add-after 'install 'adjust-library-locations
            (lambda* (#:key outputs #:allow-other-keys)
@@ -1598,17 +1618,16 @@ or junctions, and always follows hard links.")
                ;; Make sure the pkg-config file refers to the right output.
                (substitute* (string-append shared-libs "/pkgconfig/libzstd.pc")
                  (("^prefix=.*")
-                  (string-append "prefix=" lib "\n")))
-
-               #t))))
+                  ;; Note: The .pc file expects a trailing slash for 'prefix'.
+                  (string-append "prefix=" lib "/\n")))))))
        #:make-flags
-       ;; TODO: Integrate in next rebuild cycle.
-       (list ,(if (%current-target-system)
-                (string-append "CC=" (cc-for-target))
-                "CC=gcc")
-             (string-append "PREFIX=" (assoc-ref %outputs "out"))
-             (string-append "LIBDIR=" (assoc-ref %outputs "lib") "/lib")
-             (string-append "INCLUDEDIR=" (assoc-ref %outputs "lib") "/include")
+       (list ,(string-append "CC=" (cc-for-target))
+             (string-append "prefix=" (assoc-ref %outputs "out"))
+             (string-append "libdir=" (assoc-ref %outputs "lib") "/lib")
+             (string-append "includedir=" (assoc-ref %outputs "lib") "/include")
+             ;; Auto-detection is over-engineered and buggy.
+             "PCLIBDIR=lib"
+             "PCINCDIR=include"
              ;; Skip auto-detection of, and creating a dependency on, the build
              ;; environment's ‘xz’ for what amounts to a dubious feature anyway.
              "HAVE_LZMA=0"
@@ -1631,17 +1650,6 @@ speed.")
                    license:public-domain ; zlibWrapper/examples/fitblk*
                    license:zlib))))      ; zlibWrapper/{gz*.c,gzguts.h}
 
-(define zstd/fixed
-  (package
-    (inherit zstd)
-    (source
-     (origin
-       (inherit (package-source zstd))
-       (patches
-        (search-patches
-         ;; From Ubuntu focal-security
-         "zstd-CVE-2021-24031_CVE-2021-24032.patch"))))))
-
 (define-public pzstd
   (package/inherit zstd
     (name "pzstd")
@@ -1754,8 +1762,32 @@ Compression ratios of 2:1 to 3:1 are common for text files.")
                                 "unzip-attribs-overflow.patch"
                                 "unzip-overflow-on-invalid-input.patch"
                                 "unzip-format-secure.patch"
-                                "unzip-overflow-long-fsize.patch"))))
-    (replacement unzip/fixed)
+                                "unzip-overflow-long-fsize.patch"
+
+                                ;; From Fedora
+                                "unzip-alt-iconv-utf8.patch"
+                                "unzip-alt-iconv-utf8-print.patch"
+                                "unzip-fix-recmatch.patch"
+                                "unzip-case-insensitive.patch"
+                                "unzip-close.patch"
+                                "unzip-COVSCAN-fix-unterminated-string.patch"
+                                "unzip-CVE-2016-9844.patch"
+                                "unzip-CVE-2018-1000035.patch"
+                                "unzip-CVE-2018-18384.patch"
+                                "unzip-exec-shield.patch"
+                                "unzip-manpage-fix.patch"
+                                "unzip-overflow.patch"
+                                "unzip-timestamp.patch"
+                                "unzip-valgrind.patch"
+                                "unzip-x-option.patch"
+                                ;; CVE-2019-13232
+                                "unzip-zipbomb-manpage.patch"
+                                "unzip-zipbomb-part1.patch"
+                                "unzip-zipbomb-part2.patch"
+                                "unzip-zipbomb-part3.patch"
+
+                                ;; https://github.com/madler/unzip/issues/2
+                                "unzip-32bit-zipbomb-fix.patch"))))
     (build-system gnu-build-system)
     ;; no inputs; bzip2 is not supported, since not compiled with BZ_NO_STDIO
     (arguments
@@ -1791,57 +1823,6 @@ recreates the stored directory structure by default.")
     (license (license:non-copyleft "file://LICENSE"
                                    "See LICENSE in the distribution."))))
 
-(define unzip/fixed
-  (package
-    (inherit unzip)
-    (version "6.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://sourceforge/infozip"
-                           "/UnZip%206.x%20%28latest%29/UnZip%206.0/unzip60.tar.gz"))
-       (sha256
-        (base32
-         "0dxx11knh3nk95p2gg2ak777dd11pr7jx5das2g49l262scrcv83"))
-       (patches (search-patches "unzip-CVE-2014-8139.patch"
-                                "unzip-CVE-2014-8140.patch"
-                                "unzip-CVE-2014-8141.patch"
-                                "unzip-CVE-2014-9636.patch"
-                                "unzip-CVE-2015-7696.patch"
-                                "unzip-CVE-2015-7697.patch"
-                                "unzip-allow-greater-hostver-values.patch"
-                                "unzip-initialize-symlink-flag.patch"
-                                "unzip-remove-build-date.patch"
-                                "unzip-attribs-overflow.patch"
-                                "unzip-overflow-on-invalid-input.patch"
-                                "unzip-format-secure.patch"
-                                "unzip-overflow-long-fsize.patch"
-
-                                ;; From Fedora
-                                "unzip-alt-iconv-utf8.patch"
-                                "unzip-alt-iconv-utf8-print.patch"
-                                "unzip-fix-recmatch.patch"
-                                "unzip-case-insensitive.patch"
-                                "unzip-close.patch"
-                                "unzip-COVSCAN-fix-unterminated-string.patch"
-                                "unzip-CVE-2016-9844.patch"
-                                "unzip-CVE-2018-1000035.patch"
-                                "unzip-CVE-2018-18384.patch"
-                                "unzip-exec-shield.patch"
-                                "unzip-manpage-fix.patch"
-                                "unzip-overflow.patch"
-                                "unzip-timestamp.patch"
-                                "unzip-valgrind.patch"
-                                "unzip-x-option.patch"
-                                ;; CVE-2019-13232
-                                "unzip-zipbomb-manpage.patch"
-                                "unzip-zipbomb-part1.patch"
-                                "unzip-zipbomb-part2.patch"
-                                "unzip-zipbomb-part3.patch"
-
-                                ;; https://github.com/madler/unzip/issues/2
-                                "unzip-32bit-zipbomb-fix.patch"))))))
-
 (define-public ziptime
   (let ((commit "2a5bc9dfbf7c6a80e5f7cb4dd05b4036741478bc")
         (revision "0"))
@@ -1894,38 +1875,22 @@ timestamps in the file header with a fixed time (1 January 2008).
 (define-public zziplib
   (package
     (name "zziplib")
-    (version "0.13.69")
+    (version "0.13.72")
     (home-page "https://github.com/gdraheim/zziplib")
     (source (origin
               (method git-fetch)
               (uri (git-reference (url home-page)
                                   (commit (string-append "v" version))))
               (file-name (git-file-name name version))
-              (patches (search-patches "zziplib-CVE-2018-16548.patch"))
               (sha256
                (base32
-                "0fbk9k7ryas2wh2ykwkvm1pbi40i88rfvc3dydh9xyd7w2jcki92"))))
-    (replacement zziplib/fixed)
-    (build-system gnu-build-system)
-    (arguments
-     `(#:phases (modify-phases %standard-phases
-                  (add-before 'check 'make-files-writable
-                    (lambda _
-                      (for-each make-file-writable
-                                (find-files "test" #:directories? #t))
-                      #t)))
-
-       ;; XXX: The default test target attempts to download external resources and
-       ;; fails without error: <https://github.com/gdraheim/zziplib/issues/53>.
-       ;; To prevent confusing log messages, just run a simple zip test that works.
-       #:test-target "check-readme"))
+                "0i6bpa2b13z19alm6ig80364dnin1w28cvif18k6wkkb0w3dzp8y"))))
+    (build-system cmake-build-system)
     (inputs
      `(("zlib" ,zlib)))
     (native-inputs `(("perl" ,perl)     ; for the documentation
                      ("pkg-config" ,pkg-config)
-                     ;; for the documentation; Python 3 not supported,
-                     ;; http://forums.gentoo.org/viewtopic-t-863161-start-0.html
-                     ("python" ,python-2)
+                     ("python" ,python)
                      ("zip" ,zip))) ; to create test files
     (synopsis "Library for accessing zip files")
     (description
@@ -1934,40 +1899,6 @@ timestamps in the file header with a fixed time (1 January 2008).
     ;; files carry the Zlib license; see "docs/copying.html" for details.
     (license (list license:lgpl2.0+ license:mpl1.1))))
 
-(define-public zziplib/fixed
-  (package
-    (inherit zziplib)
-    (name "zziplib")
-    (version "0.13.72")
-    (home-page "https://github.com/gdraheim/zziplib")
-    (source (origin
-              (method git-fetch)
-              (uri (git-reference (url home-page)
-                                  (commit (string-append "v" version))))
-              (file-name (git-file-name name version))
-              (sha256
-               (base32
-                "0i6bpa2b13z19alm6ig80364dnin1w28cvif18k6wkkb0w3dzp8y"))))
-    (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (add-after 'install 'install-compatibility-symlinks
-           (lambda* (#:key outputs #:allow-other-keys)
-             (with-directory-excursion
-               (string-append (assoc-ref outputs "out") "/lib")
-               (map (lambda (lib new-symlink)
-                      (symlink lib new-symlink))
-                    (list "libzzip.so.13" "libzzipfseeko.so.13"
-                          "libzzipmmapped.so.13" "libzzipwrap.so.13")
-                    (list "libzzip-0.so.13" "libzzipfseeko-0.so.13"
-                          "libzzipmmapped-0.so.13" "libzzipwrap-0.so.13")))
-             #t)))))
-    (native-inputs
-     `(("python" ,python)
-       ,@(alist-delete "python"
-                       (package-native-inputs zziplib))))
-    (build-system cmake-build-system)))
-
 (define-public libzip
   (package
     (name "libzip")
diff --git a/gnu/packages/connman.scm b/gnu/packages/connman.scm
index 7268af4c8b..85536f933b 100644
--- a/gnu/packages/connman.scm
+++ b/gnu/packages/connman.scm
@@ -123,7 +123,7 @@ sharing) to clients via USB, ethernet, WiFi, cellular and Bluetooth.")
              (let* ((out (assoc-ref outputs "out"))
                     (bin (string-append out "/bin/econnman-bin")))
                (wrap-program bin
-                 `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH"))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH"))))
                #t))))))
     (native-inputs `(("pkg-config" ,pkg-config)))
     (inputs
diff --git a/gnu/packages/cpio.scm b/gnu/packages/cpio.scm
index 58b2f45937..2f7a7b2363 100644
--- a/gnu/packages/cpio.scm
+++ b/gnu/packages/cpio.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2012 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2014 Mark H Weaver <mhw@netris.org>
+;;; Copyright © 2020 Marius Bakke <marius@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -35,7 +36,14 @@
                                  version ".tar.bz2"))
              (sha256
               (base32
-               "0vbgnhkawdllgnkdn6zn1f56fczwk0518krakz2qbwhxmv2vvdga"))))
+               "0vbgnhkawdllgnkdn6zn1f56fczwk0518krakz2qbwhxmv2vvdga"))
+             (modules '((guix build utils)))
+             (snippet
+              '(begin
+                 ;; Remove superfluous declaration that trips GCC 10.
+                 (substitute* "src/global.c"
+                   (("char \\*program_name;")
+                    ""))))))
     (build-system gnu-build-system)
     (home-page "https://www.gnu.org/software/cpio/")
     (synopsis "Manage cpio and tar file archives")
diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 25a6f71ca4..7231f9a94f 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -2008,17 +2008,17 @@ previewing themes in real time.")
                ;; replace them.
                (with-directory-excursion "inst/www/shared"
                  (replace-file "strftime/strftime-min.js"
-                               (string-append (assoc-ref inputs "js-strftime")
-                                              "/share/javascript/strftime.min.js"))
+                               (search-input-file inputs
+                                                  "/share/javascript/strftime.min.js"))
                  (replace-file "highlight/highlight.pack.js"
-                               (string-append (assoc-ref inputs "js-highlight")
-                                              "/share/javascript/highlight.min.js"))
+                               (search-input-file inputs
+                                                  "/share/javascript/highlight.min.js"))
                  (replace-file "datatables/js/jquery.dataTables.min.js"
-                               (string-append (assoc-ref inputs "js-datatables")
-                                              "/share/javascript/jquery.dataTables.min.js"))
+                               (search-input-file inputs
+                                                  "/share/javascript/jquery.dataTables.min.js"))
                  (replace-file "selectize/js/selectize.min.js"
-                               (string-append (assoc-ref inputs "js-selectize")
-                                              "/share/javascript/selectize.min.js"))
+                               (search-input-file inputs
+                                                  "/share/javascript/selectize.min.js"))
                  (for-each (match-lambda
                              ((source . target)
                               (minify source #:target target)))
@@ -2122,8 +2122,8 @@ responsive, and powerful applications with minimal effort.")
          (add-after 'unpack 'replace-minified-javascript
            (lambda* (#:key inputs #:allow-other-keys)
              (with-directory-excursion "inst/www/jsTree-3.3.7/"
-               (symlink (string-append (assoc-ref inputs "js-requirejs")
-                                       "/share/javascript/require.min.js")
+               (symlink (search-input-file inputs
+                                           "/share/javascript/require.min.js")
                         "libs/require.js")
                (call-with-values
                    (lambda ()
@@ -24195,9 +24195,8 @@ techniques to average Bayesian predictive distributions.")
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "TZ" "UTC+1")
              (setenv "TZDIR"
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo"))
-             #t)))))
+                     (search-input-directory inputs
+                                             "share/zoneinfo")))))))
     (native-inputs
      `(("tzdata" ,tzdata-for-tests)
        ("pandoc" ,pandoc)
diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index d5e2347e8b..00209d4e29 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -12,6 +12,7 @@
 ;;; Copyright © 2020 André Batista <nandre@riseup.net>
 ;;; Copyright © 2020 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2020 Antoine Côté <antoine.cote@posteo.net>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2021 aecepoglu <aecepoglu@fastmail.fm>
 ;;; Copyright © 2021 Zheng Junjie <873216071@qq.com>
 ;;; Copyright © 2021 Alexandru-Sergiu Marton <brown121407@posteo.ro>
@@ -25084,10 +25085,10 @@ image together with its neighboring pixels.")
         ("rust-flate2" ,rust-flate2-1)
         ("rust-image" ,rust-image-0.20)
         ("rust-itoa" ,rust-itoa-0.4)
-        ("rust-linked-hash-map" ,rust-linked-hash-map-0.4)
+        ("rust-linked-hash-map" ,rust-linked-hash-map-0.5)
         ("rust-log" ,rust-log-0.4)
         ("rust-lzw" ,rust-lzw-0.10)
-        ("rust-nom" ,rust-nom-5)
+        ("rust-nom" ,rust-nom-6)
         ("rust-pom" ,rust-pom-3)
         ("rust-rayon" ,rust-rayon-1)
         ("rust-time" ,rust-time-0.2))))
diff --git a/gnu/packages/cross-base.scm b/gnu/packages/cross-base.scm
index 180594509b..78cbf871ac 100644
--- a/gnu/packages/cross-base.scm
+++ b/gnu/packages/cross-base.scm
@@ -4,7 +4,7 @@
 ;;; Copyright © 2016, 2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2016 Manolis Fragkiskos Ragkousis <manolis837@gmail.com>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
-;;; Copyright © 2019, 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2019, 2020, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2019 Carl Dong <contact@carldong.me>
 ;;; Copyright © 2020 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;;
@@ -153,12 +153,6 @@ base compiler and using LIBC (which may be either a libc package or #f.)"
                                "--disable-decimal-float" ;would need libc
                                "--disable-libcilkrts"
 
-                              ,@(if (string-prefix? "powerpc64le-" target)
-                                   ;; On POWER9 (little endian) glibc needs
-                                   ;; the 128-bit long double type.
-                                   '("--with-long-double-128")
-                                   '())
-
                                ;; When target is any OS other than 'none' these
                                ;; libraries will fail if there is no libc
                                ;; present. See
@@ -243,6 +237,9 @@ target that libc."
         (append
          (origin-patches (package-source xgcc))
          (append (cond
+                  ((version>=? (package-version xgcc) "10.0")
+                   (search-patches "gcc-10-cross-environment-variables.patch"
+                                   "gcc-cross-gxx-include-dir.patch"))
                   ((version>=? (package-version xgcc) "8.0")
                    (search-patches "gcc-8-cross-environment-variables.patch"))
                   ((version>=? (package-version xgcc) "6.0")
@@ -341,15 +338,18 @@ target that libc."
            `(#:implicit-cross-inputs? #f
              ,@(package-arguments linux-headers))
          ((#:phases phases)
-          `(alist-replace
-            'build
-            (lambda _
-              (setenv "ARCH" ,(system->linux-architecture target))
-              (format #t "`ARCH' set to `~a' (cross compiling)~%" (getenv "ARCH"))
-
-              (invoke "make" ,(system->defconfig target))
-              (invoke "make" "mrproper" "headers_check"))
-            ,phases))))
+          `(modify-phases ,phases
+             (replace 'build
+               (lambda _
+                 (setenv "ARCH" ,(system->linux-architecture target))
+                 (format #t "`ARCH' set to `~a' (cross compiling)~%"
+                         (getenv "ARCH"))
+
+                 (invoke "make" ,(system->defconfig target))
+                 (invoke "make" "mrproper"
+                         ,@(if (version>=? (package-version linux-headers) "5.3")
+                               '("headers")
+                               '("headers_check")))))))))
       (native-inputs `(("cross-gcc" ,xgcc)
                        ("cross-binutils" ,xbinutils)
                        ,@(package-native-inputs linux-headers)))))
@@ -505,7 +505,7 @@ and the cross tool chain."
                ,@(package-arguments libc))
            ((#:configure-flags flags)
             `(cons ,(string-append "--host=" target)
-                   ,(if (hurd-triplet? target)
+                   ,(if (target-hurd? target)
                         `(cons "--disable-werror" ,flags)
                         flags)))
            ((#:phases phases)
@@ -519,7 +519,7 @@ and the cross tool chain."
                      (setenv "CROSS_LIBRARY_PATH"
                              (string-append kernel "/lib")) ; for Hurd's libihash
                      #t)))
-               ,@(if (hurd-triplet? target)
+               ,@(if (target-hurd? target)
                      '((add-after 'install 'augment-libc.so
                          (lambda* (#:key outputs #:allow-other-keys)
                            (let* ((out (assoc-ref outputs "out")))
@@ -527,35 +527,16 @@ and the cross tool chain."
                                (("/[^ ]+/lib/libc.so.0.3")
                                 (string-append out "/lib/libc.so.0.3"
                                                " libmachuser.so libhurduser.so"))))
-                           #t))
-                       ;; TODO: move to glibc in the next rebuild cycle
-                       (add-after 'unpack 'patch-libc/hurd
-                         (lambda* (#:key inputs #:allow-other-keys)
-                           (for-each
-                            (lambda (name)
-                              (let ((patch (assoc-ref inputs name)))
-                                (invoke "patch" "-p1" "--force" "-i" patch)))
-                            '("hurd-mach-print.patch"
-                              "hurd-gettyent.patch")))))
+                           #t)))
                      '())))))
 
         ;; Shadow the native "kernel-headers" because glibc's recipe expects the
         ;; "kernel-headers" input to point to the right thing.
         (propagated-inputs `(("kernel-headers" ,xheaders)))
 
-        ;; FIXME: 'static-bash' should really be an input, not a native input, but
-        ;; to do that will require building an intermediate cross libc.
-        (inputs (if (hurd-triplet? target)
-                    `(;; TODO: move to glibc in the next rebuild cycle
-                      ("hurd-mach-print.patch"
-                       ,(search-patch "glibc-hurd-mach-print.patch"))
-                      ("hurd-gettyent.patch"
-                       ,(search-patch "glibc-hurd-gettyent.patch")))
-                    '()))
-
         (native-inputs `(("cross-gcc" ,xgcc)
                          ("cross-binutils" ,xbinutils)
-                         ,@(if (hurd-triplet? target)
+                         ,@(if (target-hurd? target)
                                `(("cross-mig"
                                   ,@(assoc-ref (package-native-inputs xheaders)
                                                "cross-mig")))
diff --git a/gnu/packages/crypto.scm b/gnu/packages/crypto.scm
index fe2cec045d..189ca27209 100644
--- a/gnu/packages/crypto.scm
+++ b/gnu/packages/crypto.scm
@@ -81,6 +81,7 @@
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix git-download)
+  #:use-module (guix gexp)
   #:use-module (guix build-system cargo)
   #:use-module (guix build-system cmake)
   #:use-module (guix build-system copy)
@@ -434,7 +435,7 @@ secure operations. ")
              (lambda _
                (invoke "./worgen" "8-12" "top1000.txt" "3-10" "top400nouns.txt"
                        "3-6" "top150adjectives.txt" "3-6")
-               (invoke "./eschalot" "-r" "^guix|^guixsd")
+               (invoke "./eschalot" "-r" "^guix|^GuixSystem")
                (invoke "./eschalot" "-r" "^gnu|^free")
                (invoke "./eschalot" "-r" "^cyber|^hack")
                (invoke "./eschalot" "-r" "^troll")))
@@ -891,7 +892,7 @@ BLAKE.")
 (define-public rhash
   (package
     (name "rhash")
-    (version "1.3.9")
+    (version "1.4.2")
     (source
      (origin
        (method url-fetch)
@@ -900,40 +901,40 @@ BLAKE.")
        (file-name (string-append "rhash-" version ".tar.gz"))
        (sha256
         (base32
-         "1xn9fqa6rlnhsbgami45g82dlw9i1skg2sri3ydiinwak5ph1ca2"))))
+         "0qpc1fq7gdxxl11zya1gqhl9628jjk3x60q9sna43w0yz7sh03b0"))))
     (build-system gnu-build-system)
     (arguments
-     `(#:configure-flags
-       (list (string-append "--prefix=" (assoc-ref %outputs "out"))
-             ,@(let ((target (%current-target-system)))
-                 (if target
-                     `((string-append "--target=" ,target)
-                       (string-append "--cc="
-                                      (assoc-ref %build-inputs "cross-gcc")
-                                      "/bin/" ,target "-gcc"))
-                     '())))
-       #:make-flags
-       ;; The binaries in /bin need some help finding librhash.so.0.
-       (list (string-append "LDFLAGS=-Wl,-rpath=" %output "/lib"))
-       #:test-target "test"             ; ‘make check’ just checks the sources
-       #:phases
-       (modify-phases %standard-phases
-         (replace 'configure
-           ;; ./configure is not GNU autotools' and doesn't gracefully handle
-           ;; unrecognized options, so we must call it manually.
-           (lambda* (#:key configure-flags #:allow-other-keys)
-             (apply invoke "./configure" configure-flags)))
-         (add-before 'check 'patch-/bin/sh
-           (lambda _
-             (substitute* "Makefile"
-               (("/bin/sh") (which "sh")))
-             #t))
-         (add-after 'install 'install-library-extras
-           (lambda* (#:key make-flags #:allow-other-keys)
-             (apply invoke
-                    "make" "-C" "librhash"
-                    "install-lib-headers" "install-so-link"
-                    make-flags))))))
+     (list #:configure-flags
+           #~(list (string-append "--prefix=" #$output)
+                   #$@(let ((target (%current-target-system)))
+                        (if target
+                            #~((string-append "--target=" #$target)
+                               (string-append "--cc="
+                                              (assoc-ref %build-inputs "cross-gcc")
+                                              "/bin/" #$target "-gcc"))
+                            #~())))
+           #:make-flags
+           ;; The binaries in /bin need some help finding librhash.so.0.
+           #~(list (string-append "LDFLAGS=-Wl,-rpath=" #$output "/lib"))
+           #:test-target "test"         ; ‘make check’ just checks the sources
+           #:phases
+           #~(modify-phases %standard-phases
+              (delete 'configure)
+              (add-before 'build 'configure
+                ;; ./configure is not GNU autotools' and doesn't gracefully handle
+                ;; unrecognized options, so we must call it manually.
+                (lambda* (#:key configure-flags #:allow-other-keys)
+                  (apply invoke "./configure" configure-flags)))
+              (add-before 'check 'patch-/bin/sh
+                (lambda _
+                  (substitute* "Makefile"
+                    (("/bin/sh") (which "sh")))))
+              (add-after 'install 'install-library-extras
+                (lambda* (#:key make-flags #:allow-other-keys)
+                  (apply invoke
+                         "make" "-C" "librhash"
+                         "install-lib-headers" "install-so-link"
+                         make-flags))))))
     (home-page "https://sourceforge.net/projects/rhash/")
     (synopsis "Utility for computing hash sums")
     (description "RHash is a console utility for calculation and verification
diff --git a/gnu/packages/cups.scm b/gnu/packages/cups.scm
index ff3fb2f2db..0cec211b1b 100644
--- a/gnu/packages/cups.scm
+++ b/gnu/packages/cups.scm
@@ -1,12 +1,13 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015, 2019, 2021 Ricardo Wurmus <rekado@elephly.net>
-;;; Copyright © 2015, 2016, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2017, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015, 2016, 2017, 2018 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Danny Milosavljevic <dannym@scratchpost.org>
 ;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2017 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2017–2021 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -128,7 +129,7 @@ driver is known to work with these printers:
 (define-public cups-filters
   (package
     (name "cups-filters")
-    (version "1.27.4")
+    (version "1.28.9")
     (source(origin
               (method url-fetch)
               (uri
@@ -136,7 +137,7 @@ driver is known to work with these printers:
                               "cups-filters-" version ".tar.xz"))
               (sha256
                (base32
-                "110b1xhb5vfpcx0zq9kkas7pj281skx5dpnnr22idx509jfdzj8b"))
+                "1bk0x1rrb8wqbhh5c979ppgy6s2kqss8mjdlahgcjvd79wm3fs9g"))
               (modules '((guix build utils)))
               (snippet
                ;; install backends, banners and filters to cups-filters output
@@ -196,29 +197,31 @@ driver is known to work with these printers:
                         #t)))
                   (add-after 'install 'wrap-filters
                     (lambda* (#:key inputs outputs #:allow-other-keys)
-                      ;; Some filters expect to find 'gs' in $PATH.  We cannot
-                      ;; just hard-code its absolute file name in the source
+                      ;; Some filters expect to find things in $PATH.  We cannot
+                      ;; just hard-code all absolute file names in the source
                       ;; because foomatic-rip, for example, has tests like
                       ;; 'startswith(cmd, "gs")'.
                       (let ((out         (assoc-ref outputs "out"))
-                            (ghostscript (assoc-ref inputs "ghostscript")))
+                            (ghostscript (assoc-ref inputs "ghostscript"))
+                            (grep        (assoc-ref inputs "grep")))
                         (for-each (lambda (file)
                                     (wrap-program file
                                       `("PATH" ":" prefix
-                                        (,(string-append ghostscript
-                                                         "/bin")))))
+                                        (,(string-append ghostscript "/bin:"
+                                                         grep "/bin")))))
                                   (find-files (string-append
                                                out "/lib/cups/filter")))
                         #t))))))
     (native-inputs
-     `(("glib" ,glib "bin") ; for gdbus-codegen
+     `(("glib" ,glib "bin")             ; for gdbus-codegen
        ("pkg-config" ,pkg-config)))
     (inputs
      `(("avahi"        ,avahi)
        ("fontconfig"   ,fontconfig)
        ("freetype"     ,freetype)
-       ("font-dejavu"  ,font-dejavu) ; also needed by test suite
+       ("font-dejavu"  ,font-dejavu)    ; also needed by test suite
        ("ghostscript"  ,ghostscript/cups)
+       ("grep"         ,grep)
        ("ijs"          ,ijs)
        ("dbus"         ,dbus)
        ("lcms"         ,lcms)
@@ -251,16 +254,20 @@ filters for the PDF-centric printing workflow introduced by OpenPrinting.")
 (define-public cups-minimal
   (package
     (name "cups-minimal")
-    (version "2.3.3")
-    (replacement cups-minimal/fixed)
+    (version "2.3.3op2")
     (source
      (origin
-       (method url-fetch)
-       (uri (string-append "https://github.com/apple/cups/releases/download/v"
-                           version "/cups-" version "-source.tar.gz"))
+       (method git-fetch)
+       ;; Version maintained by the OpenPrinting organization, NOT a fork.  The
+       ;; CUPS author tracks the current Apple CUPS sources and includes common
+       ;; changes and bug fixes for GNU/Linux.  See its README and for example
+       ;; <https://github.com/apple/cups/issues/5917#issuecomment-819465891>.
+       (uri (git-reference
+             (url "https://github.com/OpenPrinting/cups")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
        (sha256
-        (base32
-         "1vpk0b2vq830f8fvf9z8qjsm5k141i7pi8djbinpnr78pi4dj7r6"))))
+        (base32 "126d6kd3pkhmsvbcflkcpk3y30iqlkdqyvrk9aqq88vbxzjd5ia6"))))
     (build-system gnu-build-system)
     (arguments
      `(#:configure-flags
@@ -273,6 +280,31 @@ filters for the PDF-centric printing workflow introduced by OpenPrinting.")
        #:tests? #f
        #:phases
        (modify-phases %standard-phases
+         (add-after 'unpack 'never-cupsAdminGetServerSettings
+           ;; Instead of querying the daemon directly, this part of CUPS assumes
+           ;; that (1) it has access to a cupsd.conf under CUPS_SERVERROOT, and
+           ;; (2) the file's contents apply to the running daemon.  (1) is false
+           ;; at least on Guix Systems resulting in extremely long delays when
+           ;; loading the Web interface's /admin page.  (2) isn't valid anywhere
+           ;; because it ignores, e.g., -c FILE.
+           ;; Upstream considers this code on ‘life support’ so just neuter it.
+	   (lambda _
+	     (substitute* "cgi-bin/admin.c"
+	       (("!cupsAdminGetServerSettings" match)
+		(string-append "0 && " match)))))
+         (add-after 'unpack 'remove-Web-UI-server-settings
+           ;; The /admin page's server configuration form is questionable for
+           ;; the same reason as cupsAdminGetServerSettings, and won't work at
+           ;; all on Guix Systems.  Remove it entirely.
+           (lambda _
+             ;; SUBSTITUTE* and a patch both have (dis)advantages.  This is
+             ;; shorter & should ensure that no translation is forgotten.
+             (substitute* (find-files "templates" "^admin\\.tmpl$")
+               ((" class=\"halves\"") "")
+               (("<FORM.* ACTION=\"/jobs.*</FORM>" match)
+                (string-append match "</P>{BROKEN? "))
+               (("</FORM>}" match)
+                (string-append match "}")))))
          (add-before 'configure 'patch-makedefs
            (lambda _
              (substitute* "Makedefs.in"
@@ -299,7 +331,7 @@ filters for the PDF-centric printing workflow introduced by OpenPrinting.")
     (inputs
      `(("zlib"  ,zlib)
        ("gnutls" ,gnutls)))
-    (home-page "https://www.cups.org")
+    (home-page "https://openprinting.github.io/")
     (synopsis "The Common Unix Printing System")
     (description
      "CUPS is a printing system that uses the Internet Printing Protocol
@@ -313,148 +345,128 @@ device-specific programs to convert and print many types of files.")
     ;; CUPS is Apache 2.0 with exceptions, see the NOTICE file.
     (license license:asl2.0)))
 
-(define cups-minimal/fixed
-  (package-with-extra-patches
-   cups-minimal
-   (search-patches "cups-CVE-2020-10001.patch")))
-
 (define-public cups
   (package/inherit cups-minimal
     (name "cups")
     (arguments
-     `(;; Three tests fail:
-       ;; * two tests in ipp-1.1.test related to "RFC 2911 section 3.2.6:
-       ;;   Get-Jobs Operation"
-       ;; * test of number of error/warning messages, probably related to a
-       ;;   missing font.
-       #:tests? #f
-       #:configure-flags
-       '("--disable-launchd"
-         "--disable-systemd")
-       #:phases
-       (modify-phases %standard-phases
-         (add-before 'configure 'patch-makedefs
-           (lambda _
-             (substitute* "Makedefs.in"
-               (("INITDIR.*=.*@INITDIR@") "INITDIR = @prefix@/@INITDIR@")
-               (("/bin/sh") (which "sh")))
-             #t))
-         (add-before 'check 'patch-tests
-           (lambda _
-             (let ((filters (assoc-ref %build-inputs "cups-filters"))
-                   (catpath (string-append
-                             (assoc-ref %build-inputs "coreutils") "/bin/"))
-                   (testdir (string-append (getcwd) "/tmp/")))
-               (mkdir testdir)
-               (substitute* "test/run-stp-tests.sh"
-                 ((" *BASE=/tmp/") (string-append "BASE=" testdir))
-
-                 ;; allow installation of filters from output dir and from
-                 ;; cups-filters
-                 (("for dir in /usr/libexec/cups/filter /usr/lib/cups/filter")
-                  (string-append
-                   "for dir in "
-                   (assoc-ref %outputs "out") "/lib/cups/filter "
-                   filters "/lib/cups/filter"))
+     (substitute-keyword-arguments (package-arguments cups-minimal)
+       ((#:tests? _ #t)
+        ;; Three tests fail:
+        ;; * two tests in ipp-1.1.test related to "RFC 2911 section 3.2.6:
+        ;;   Get-Jobs Operation"
+        ;; * test of number of error/warning messages, probably related to a
+        ;;   missing font.
+        #f)
+       ((#:configure-flags _ '())
+        `(list "--disable-launchd"
+               "--disable-systemd"))
+       ((#:phases phases '%standard-phases)
+        `(modify-phases ,phases
+           (add-before 'check 'patch-tests
+             (lambda _
+               (let ((filters (assoc-ref %build-inputs "cups-filters"))
+                     (catpath (string-append
+                               (assoc-ref %build-inputs "coreutils") "/bin/"))
+                     (testdir (string-append (getcwd) "/tmp/")))
+                 (mkdir testdir)
+                 (substitute* "test/run-stp-tests.sh"
+                   ((" *BASE=/tmp/") (string-append "BASE=" testdir))
 
-                 ;; check for charsets in cups-filters output
-                 (("/usr/share/cups/charsets")
-                  (string-append filters "/share/cups/charsets"))
+                   ;; Allow installation of filters from the output directory
+                   ;; and from cups-filters.
+                   (("for dir in /usr/libexec/cups/filter /usr/lib/cups/filter")
+                    (string-append
+                     "for dir in "
+                     (assoc-ref %outputs "out") "/lib/cups/filter "
+                     filters "/lib/cups/filter"))
 
-                 ;; install additional required filters
-                 (("instfilter texttopdf texttopdf pdf")
-                  (string-append
-                   "instfilter texttopdf texttopdf pdf;"
-                   "instfilter imagetoraster imagetoraster raster;"
-                   "instfilter gstoraster gstoraster raster;"
-                   "instfilter urftopdf urftopdf pdf;"
-                   "instfilter rastertopdf rastertopdf pdf;"
-                   "instfilter pstopdf pstopdf pdf"))
+                   ;; Check for charsets in the default cups-filters output.
+                   (("/usr/share/cups/charsets")
+                    (string-append filters "/share/cups/charsets"))
 
-                 ;; specify location of lpstat binary
-                 (("description=\"`lpstat -l")
-                  "description=\"`../systemv/lpstat -l")
+                   ;; Install additional required filters.
+                   (("instfilter texttopdf texttopdf pdf")
+                    (string-append
+                     "instfilter texttopdf texttopdf pdf;"
+                     "instfilter imagetoraster imagetoraster raster;"
+                     "instfilter gstoraster gstoraster raster;"
+                     "instfilter urftopdf urftopdf pdf;"
+                     "instfilter rastertopdf rastertopdf pdf;"
+                     "instfilter pstopdf pstopdf pdf"))
 
-                 ;; patch shebangs of embedded scripts
-                 (("#!/bin/sh") (string-append "#!" (which "sh")))
+                   ;; Specify the location of the lpstat binary.
+                   (("description=\"`lpstat -l")
+                    "description=\"`../systemv/lpstat -l")
 
-                 ;; also link mime definitions from cups-filters
-                 ;; to enable the additional filters for the test suite
-                 (("ln -s \\$root/conf/mime\\.types")
-                  (string-append
-                   "ln -s " filters
-                   "/share/cups/mime/cupsfilters.types $BASE/share/mime; "
-                   "ln -s $root/conf/mime.types"))
-                 (("ln -s \\$root/conf/mime\\.convs")
-                  (string-append
-                   "ln -s " filters
-                   "/share/cups/mime/cupsfilters.convs $BASE/share/mime; "
-                   "ln -s $root/conf/mime.convs")))
+                   ;; Patch the shebangs of embedded scripts.
+                   (("#!/bin/sh") (string-append "#!" (which "sh")))
 
-               ;; fix search path for "cat"
-               (substitute* "cups/testfile.c"
-                 (("cupsFileFind\\(\"cat\", \"/bin\"")
-                  (string-append "cupsFileFind(\"cat\", \"" catpath "\""))
-                 (("cupsFileFind\\(\"cat\", \"/bin:/usr/bin\"")
-                  (string-append "cupsFileFind(\"cat\", \"" catpath "\"")))
-               #t)))
-         ;; Make the compressed manpages writable so that the
-         ;; reset-gzip-timestamps phase does not error out.
-         (add-before 'reset-gzip-timestamps 'make-manpages-writable
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((out (assoc-ref outputs "out"))
-                    (man (string-append out "/share/man")))
-               (for-each (lambda (file) (chmod file #o644))
-                         (find-files man "\\.gz"))
-               #t)))
-         (add-after 'install 'install-cups-filters-symlinks
-           (lambda* (#:key inputs outputs #:allow-other-keys)
-             (let ((out (assoc-ref outputs "out"))
-                   (cups-filters (assoc-ref inputs "cups-filters")))
-               ;; charsets
-               (symlink
-                (string-append cups-filters "/share/cups/charsets")
-                (string-append out "/share/charsets"))
+                   ;; Also link MIME definitions from cups-filters
+                   ;; to enable the additional filters for the test suite.
+                   (("ln -s \\$root/conf/mime\\.types")
+                    (string-append
+                     "ln -s " filters
+                     "/share/cups/mime/cupsfilters.types $BASE/share/mime; "
+                     "ln -s $root/conf/mime.types"))
+                   (("ln -s \\$root/conf/mime\\.convs")
+                    (string-append
+                     "ln -s " filters
+                     "/share/cups/mime/cupsfilters.convs $BASE/share/mime; "
+                     "ln -s $root/conf/mime.convs")))
 
-               ;; mime types, driver file, ppds
-               (for-each
-                (lambda (f)
-                  (symlink (string-append cups-filters f)
-                           (string-append out f)))
-                '("/share/cups/mime/cupsfilters.types"
-                  "/share/cups/mime/cupsfilters.convs"
-                  "/share/cups/drv/cupsfilters.drv"
-                  "/share/ppd"))
+                 ;; Fix the search path for the "cat" command.
+                 (substitute* "cups/testfile.c"
+                   (("cupsFileFind\\(\"cat\", \"/bin\"")
+                    (string-append "cupsFileFind(\"cat\", \"" catpath "\""))
+                   (("cupsFileFind\\(\"cat\", \"/bin:/usr/bin\"")
+                    (string-append "cupsFileFind(\"cat\", \"" catpath "\""))))))
+           (add-after 'install 'install-cups-filters-symlinks
+             (lambda* (#:key inputs outputs #:allow-other-keys)
+               (let ((out (assoc-ref outputs "out"))
+                     (cups-filters (assoc-ref inputs "cups-filters")))
+                 ;; Charsets.
+                 (symlink
+                  (string-append cups-filters "/share/cups/charsets")
+                  (string-append out "/share/charsets"))
 
-               ;; filters
-               (for-each
-                (lambda (f)
-                  (symlink f
-                           (string-append out "/lib/cups/filter" (basename f))))
-                (find-files (string-append cups-filters "/lib/cups/filter")))
+                 ;; MIME types, driver files, and PPDs.
+                 (for-each
+                  (lambda (f)
+                    (symlink (string-append cups-filters f)
+                             (string-append out f)))
+                  '("/share/cups/mime/cupsfilters.types"
+                    "/share/cups/mime/cupsfilters.convs"
+                    "/share/cups/drv/cupsfilters.drv"
+                    "/share/ppd"))
 
-               ;; backends
-               (for-each
-                (lambda (f)
-                  (symlink (string-append cups-filters f)
-                           (string-append out "/lib/cups/backend/"
-                                          (basename f))))
-                '("/lib/cups/backend/parallel"
-                  "/lib/cups/backend/serial"))
+                 ;; Filters.
+                 (for-each
+                  (lambda (f)
+                    (symlink f
+                             (string-append out "/lib/cups/filter"
+                                            (basename f))))
+                  (find-files (string-append cups-filters "/lib/cups/filter")))
 
-               ;; banners
-               (let ((banners "/share/cups/banners"))
-                 (delete-file-recursively (string-append out banners))
-                 (symlink (string-append cups-filters banners)
-                          (string-append out banners)))
+                 ;; Backends.
+                 (for-each
+                  (lambda (f)
+                    (symlink (string-append cups-filters f)
+                             (string-append out "/lib/cups/backend/"
+                                            (basename f))))
+                  '("/lib/cups/backend/parallel"
+                    "/lib/cups/backend/serial"))
 
-               ;; assorted data
-               (let ((data "/share/cups/data"))
-                 (delete-file-recursively (string-append out data))
-                 (symlink (string-append cups-filters data)
-                          (string-append out data)))
+                 ;; Banners.
+                 (let ((banners "/share/cups/banners"))
+                   (delete-file-recursively (string-append out banners))
+                   (symlink (string-append cups-filters banners)
+                            (string-append out banners)))
 
-               #t))))))
+                 ;; Assorted data.
+                 (let ((data "/share/cups/data"))
+                   (delete-file-recursively (string-append out data))
+                   (symlink (string-append cups-filters data)
+                            (string-append out data))))))))))
     (inputs
      `(("avahi" ,avahi)
        ("gnutls" ,gnutls)
@@ -523,8 +535,7 @@ should only be used as part of the Guix cups-pk-helper service.")
                     (("^dat2drvdir =.*")
                      "dat2drvdir = $(pkglibexecdir)\n")
                     (("^locatedriverdir =.*")
-                     "locatedriverdir = $(pkglibexecdir)\n"))
-                  #t))))
+                     "locatedriverdir = $(pkglibexecdir)\n"))))))
     (build-system gnu-build-system)
     (outputs (list "out" "ppd"))
     (home-page "https://developers.hp.com/hp-linux-imaging-and-printing")
@@ -589,8 +600,7 @@ should only be used as part of the Guix cups-pk-helper service.")
                  ;; FIXME Use beginning-of-word in regexp.
                  (("[[:blank:]]plugin\\.py[[:blank:]]") " ")
                  (("/usr/include/libusb-1.0")
-                  (string-append (assoc-ref inputs "libusb")
-                                 "/include/libusb-1.0"))
+                  (search-input-directory inputs "/include/libusb-1.0"))
                  (("hplip_statedir =.*$")
                   ;; Don't bail out while trying to create
                   ;; /var/lib/hplip.  We can safely change its value
@@ -613,8 +623,7 @@ should only be used as part of the Guix cups-pk-helper service.")
                   (string-append "rulessystemdir = " out
                                  "/lib/systemd/system"))
                  (("/etc/sane.d")
-                  (string-append out "/etc/sane.d")))
-               #t)))
+                  (string-append out "/etc/sane.d"))))))
          (add-before 'configure 'fix-build-with-python-3.8
            (lambda* (#:key inputs #:allow-other-keys)
              (let ((python (assoc-ref inputs "python")))
@@ -625,15 +634,13 @@ should only be used as part of the Guix cups-pk-helper service.")
                  (setenv "C_INCLUDE_PATH"
                          (string-append python "/include/python"
                                         (python:python-version python)
-                                        ":" (getenv "C_INCLUDE_PATH"))))
-               #t)))
+                                        ":" (getenv "C_INCLUDE_PATH")))))))
          (add-after 'install 'install-models-dat
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
                     (models-dir (string-append out
                                                "/share/hplip/data/models")))
-               (install-file "data/models/models.dat" models-dir))
-             #t))
+               (install-file "data/models/models.dat" models-dir))))
          (add-after 'install 'wrap-binaries
            ;; Scripts in /bin are all symlinks to .py files in /share/hplip.
            ;; Symlinks are immune to the Python build system's 'WRAP phase,
@@ -644,7 +651,7 @@ should only be used as part of the Guix cups-pk-helper service.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
                     (bin (string-append out "/bin"))
-                    (python (assoc-ref inputs "python")))
+                    (site (python:site-packages inputs outputs)))
                (with-directory-excursion bin
                  (for-each (lambda (file)
                              (let ((target (readlink file)))
@@ -653,19 +660,15 @@ should only be used as part of the Guix cups-pk-helper service.")
                                  (lambda _
                                    (format #t
                                            "#!~a~@
-                                           export PYTHONPATH=\"~a:~a\"~@
+                                           export GUIX_PYTHONPATH=\"~a:~a\"~@
                                            exec -a \"$0\" \"~a/~a\" \"$@\"~%"
                                            (which "bash")
-                                           (string-append
-                                            out "/lib/python"
-                                            (python:python-version python)
-                                            "/site-packages")
-                                           (getenv "PYTHONPATH")
+                                           site
+                                           (getenv "GUIX_PYTHONPATH")
                                            bin target)))
                                (chmod file #o755)))
                   (find-files "." (lambda (file stat)
-                                    (eq? 'symlink (stat:type stat)))))
-                 #t)))))))
+                                    (eq? 'symlink (stat:type stat))))))))))))
 
     ;; Note that the error messages printed by the tools in the case of
     ;; missing dependencies are often downright misleading.
diff --git a/gnu/packages/curl.scm b/gnu/packages/curl.scm
index e6f1bb0c41..39344b1d9f 100644
--- a/gnu/packages/curl.scm
+++ b/gnu/packages/curl.scm
@@ -11,6 +11,7 @@
 ;;; Copyright © 2019, 2021 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
 ;;; Copyright © 2020 Dale Mellor <guix-devel-0brg6b@rdmp.org>
+;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2021 Jean-Baptiste Volatier <jbv@pm.me>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -43,7 +44,6 @@
   #:use-module (gnu packages guile)
   #:use-module (gnu packages kerberos)
   #:use-module (gnu packages libidn)
-  #:use-module (gnu packages openldap)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
@@ -55,29 +55,29 @@
 (define-public curl
   (package
    (name "curl")
-   (replacement curl-7.77.0)
-   (version "7.74.0")
+   (version "7.77.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://curl.haxx.se/download/curl-"
                                  version ".tar.xz"))
              (sha256
               (base32
-               "12w7gskrglg6qrmp822j37fmbr0icrcxv7rib1fy5xiw80n5z7cr"))
-             (patches (search-patches "curl-use-ssl-cert-env.patch"))))
+               "0jsrc97vbghvljic997r9nypc9qqddcil2lzvv032br8ahn5hr0g"))
+             (patches (search-patches "curl-use-ssl-cert-env.patch"
+                                      "curl-7.77-tls-priority-string.patch"))))
    (build-system gnu-build-system)
    (outputs '("out"
               "doc"))                             ;1.2 MiB of man3 pages
    (inputs `(("gnutls" ,gnutls)
              ("libidn" ,libidn)
-             ("openldap" ,openldap)
              ("mit-krb5" ,mit-krb5)
              ("nghttp2" ,nghttp2 "lib")
              ("zlib" ,zlib)))
    (native-inputs
-     `(("perl" ,perl)
+     `(("nghttp2" ,nghttp2)
+       ("perl" ,perl)
        ("pkg-config" ,pkg-config)
-       ("python" ,python-wrapper)))
+       ("python" ,python-minimal-wrapper)))
    (native-search-paths
     ;; These variables are introduced by curl-use-ssl-cert-env.patch.
     (list (search-path-specification
@@ -145,14 +145,8 @@ tunneling, and so on.")
                                   "See COPYING in the distribution."))
    (home-page "https://curl.haxx.se/")))
 
-;; This package exists mainly to bootstrap CMake.  It must not depend on
-;; anything that uses cmake-build-system.
 (define-public curl-minimal
-  (hidden-package
-   (package/inherit
-    curl
-    (name "curl-minimal")
-    (inputs (alist-delete "openldap" (package-inputs curl))))))
+  (deprecated-package "curl-minimal" curl))
 
 (define-public curl-ssh
   (package/inherit curl
@@ -165,21 +159,6 @@ tunneling, and so on.")
        ,@(package-inputs curl)))
     (properties `((hidden? . #t)))))
 
-(define-public curl-7.77.0
-  (package
-    (inherit curl)
-    (version "7.77.0")
-    (source
-     (origin
-       (inherit (package-source curl))
-       (uri (string-append "https://curl.haxx.se/download/curl-"
-                           version ".tar.xz"))
-       (patches (search-patches "curl-7.76-use-ssl-cert-env.patch"
-                                "curl-7.77-tls-priority-string.patch"))
-       (sha256
-        (base32
-         "0jsrc97vbghvljic997r9nypc9qqddcil2lzvv032br8ahn5hr0g"))))))
-
 (define-public kurly
   (package
     (name "kurly")
diff --git a/gnu/packages/databases.scm b/gnu/packages/databases.scm
index 76099ab3c5..2abacec8e7 100644
--- a/gnu/packages/databases.scm
+++ b/gnu/packages/databases.scm
@@ -728,6 +728,8 @@ Language.")
               (sha256
                (base32
                 "1s3vfm73911cddjhgpcbkya6nz7ag2zygg56qqzwscn5ybv28j7b"))
+              (patches (search-patches "mariadb-CVE-2021-27928.patch"
+                                       "mariadb-cmake-compat.patch"))
               (modules '((guix build utils)))
               (snippet
                '(begin
@@ -748,7 +750,6 @@ Language.")
                             (append (find-files "extra/wolfssl")
                                     (find-files "zlib")))
                   #t))))
-    (replacement mariadb/fixed)
     (build-system cmake-build-system)
     (outputs '("out" "lib" "dev"))
     (arguments
@@ -984,13 +985,6 @@ Language.")
 as a drop-in replacement of MySQL.")
     (license license:gpl2)))
 
-(define mariadb/fixed
-  (package
-    (inherit mariadb)
-    (source (origin
-              (inherit (package-source mariadb))
-              (patches (search-patches "mariadb-CVE-2021-27928.patch"))))))
-
 (define-public mariadb-connector-c
   (package
     (name "mariadb-connector-c")
@@ -1045,15 +1039,14 @@ and high-availability (HA).")
 (define-public postgresql-13
   (package
     (name "postgresql")
-    (replacement postgresql-13.3)
-    (version "13.1")
+    (version "13.3")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://ftp.postgresql.org/pub/source/v"
                                   version "/postgresql-" version ".tar.bz2"))
               (sha256
                (base32
-                "07z6zwr58dckaa97yl9ml240z83d1lhgaxw9aq49i8lsp21mqd0j"))
+                "18dliq7h2l8irffhyyhdmfwx3si515q6gds3cxdjb9n7m17lbn9w"))
               (patches (search-patches "postgresql-disable-resolve_symlinks.patch"))))
     (build-system gnu-build-system)
     (arguments
@@ -1072,6 +1065,12 @@ and high-availability (HA).")
                                       "src/bin/psql/command.c")
                          (("/bin/sh") (which "sh")))
                        #t))
+         (add-before 'configure 'set-socket-dir
+           (lambda _
+             (substitute* '("src/include/pg_config_manual.h")
+               (("DEFAULT_PGSOCKET_DIR[^\n]*")
+                "DEFAULT_PGSOCKET_DIR \"/var/run/postgresql\""))
+             #t))
          (add-after 'build 'build-contrib
            (lambda _
              (invoke "make" "-C" "contrib")))
@@ -1094,20 +1093,6 @@ TIMESTAMP.  It also supports storage of binary large objects, including
 pictures, sounds, or video.")
     (license (license:x11-style "file://COPYRIGHT"))))
 
-(define-public postgresql-13.3
-  (package
-    (inherit postgresql-13)
-    (name "postgresql")
-    (version "13.3")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://ftp.postgresql.org/pub/source/v"
-                                  version "/postgresql-" version ".tar.bz2"))
-              (sha256
-               (base32
-                "18dliq7h2l8irffhyyhdmfwx3si515q6gds3cxdjb9n7m17lbn9w"))
-              (patches (search-patches "postgresql-disable-resolve_symlinks.patch"))))))
-
 (define-public postgresql-11
   (package
     (inherit postgresql-13)
diff --git a/gnu/packages/datastructures.scm b/gnu/packages/datastructures.scm
index 577e7b1430..4973ce98af 100644
--- a/gnu/packages/datastructures.scm
+++ b/gnu/packages/datastructures.scm
@@ -296,8 +296,6 @@ equivalent succinct data structure are (most of the time) identical.")
                (base32
                 "061mkg6hc9x89zya3bw18ymxlzd8fbhjipxpva8x01lh2vp1d4f0"))))
     (build-system meson-build-system)
-    (arguments
-     `(#:meson ,meson-0.55))
     (synopsis "Typed link list for C")
     (description
      "@code{tllist} is a @dfn{typed linked list} C header file only library
diff --git a/gnu/packages/dbm.scm b/gnu/packages/dbm.scm
index fcef907b27..ce84ef9eda 100644
--- a/gnu/packages/dbm.scm
+++ b/gnu/packages/dbm.scm
@@ -1,9 +1,10 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2016 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2016, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2015 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2016, 2017, 2018, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017, 2018 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2018 Mark H Weaver <mhw@netris.org>
+;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
 ;;; Copyright © 2021 Leo Le Bouter <lle-bout@zaclys.net>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -46,7 +47,8 @@
                                  version ".tar.gz"))
              (sha256
               (base32
-               "0ampbl2f0hb1nix195kz1syrqqxpmvnvnfvphambj7xjrl3iljg0"))))
+               "0ampbl2f0hb1nix195kz1syrqqxpmvnvnfvphambj7xjrl3iljg0"))
+             (patches (search-patches "bdb-5.3-atomics-on-gcc-9.patch"))))
     (build-system gnu-build-system)
     (outputs '("out"                             ; programs, libraries, headers
                "doc"))                           ; 94 MiB of HTML docs
@@ -114,7 +116,9 @@ SQL, Key/Value, XML/XQuery or Java Object storage for their data model.")
                                   version ".tar.gz"))
               (sha256
                (base32
-                "0a1n5hbl7027fbz5lm0vp0zzfp1hmxnz14wx3zl9563h83br5ag0"))))))
+                "0a1n5hbl7027fbz5lm0vp0zzfp1hmxnz14wx3zl9563h83br5ag0"))
+              (patch-flags '("-p0"))
+              (patches (search-patches "bdb-5.3-atomics-on-gcc-9.patch"))))))
 
 (define-public bdb-6
   (package (inherit bdb-4.8)
@@ -136,14 +140,14 @@ SQL, Key/Value, XML/XQuery or Java Object storage for their data model.")
 (define-public gdbm
   (package
     (name "gdbm")
-    (version "1.18.1")
+    (version "1.20")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnu/gdbm/gdbm-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "1p4ibds6z3ccy65lkmd6lm7js0kwifvl53r0fd759fjxgr917rl6"))))
+                "14m22j0zndd42yc0ps0bcnnjj2iq7agnp66sl882lj5k91bc1sis"))))
     (arguments `(#:configure-flags '("--enable-libgdbm-compat"
                                      "--disable-static")))
     (build-system gnu-build-system)
diff --git a/gnu/packages/debug.scm b/gnu/packages/debug.scm
index 3a29886b0e..9a4ce7067a 100644
--- a/gnu/packages/debug.scm
+++ b/gnu/packages/debug.scm
@@ -513,10 +513,10 @@ input.  Zzuf's behaviour is deterministic, making it easy to reproduce bugs.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((out               (assoc-ref outputs "out"))
                    (gi-typelib-path   (getenv "GI_TYPELIB_PATH"))
-                   (python-path       (getenv "PYTHONPATH")))
+                   (python-path       (getenv "GUIX_PYTHONPATH")))
                (wrap-program (string-append out "/share/gameconqueror/GameConqueror.py")
                  `("GI_TYPELIB_PATH"        ":" prefix (,gi-typelib-path))
-                 `("PYTHONPATH"             ":" prefix (,python-path))))
+                 `("GUIX_PYTHONPATH"             ":" prefix (,python-path))))
              #t)))))
     (native-inputs
      `(("libtool" ,libtool)
diff --git a/gnu/packages/dictionaries.scm b/gnu/packages/dictionaries.scm
index 5ca9e128ff..b8bde241f7 100644
--- a/gnu/packages/dictionaries.scm
+++ b/gnu/packages/dictionaries.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2015, 2016, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016, 2017, 2018, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Sou Bunnbu <iyzsong@gmail.com>
 ;;; Copyright © 2017, 2018, 2019, 2021 Nicolas Goaziou <mail@nicolasgoaziou.fr>
@@ -178,8 +178,7 @@ work, such as sentence length and other readability measures.")
            (lambda* (#:key inputs #:allow-other-keys)
              (let ((bindir (string-append
                             (assoc-ref %outputs "out") "/bin"))
-                   (wish (string-append (assoc-ref inputs "tk")
-                          "/bin/wish8.6"))
+                   (wish (search-input-file inputs "/bin/wish8.6"))
                    (sharedir (string-append
                               (assoc-ref %outputs "out")
                               "/share/applications"))
diff --git a/gnu/packages/display-managers.scm b/gnu/packages/display-managers.scm
index 8a0342d7c5..7ae41a674e 100644
--- a/gnu/packages/display-managers.scm
+++ b/gnu/packages/display-managers.scm
@@ -223,7 +223,7 @@ easy to use, login interface with a modern yet classy touch.")
            ;; Run test-suite under a dbus session.
            (lambda* (#:key inputs #:allow-other-keys)
              (wrap-program "tests/src/test-python-greeter"
-               `("PYTHONPATH"      ":" prefix (,(getenv "PYTHONPATH")))
+               `("GUIX_PYTHONPATH"      ":" prefix (,(getenv "GUIX_PYTHONPATH")))
                `("GI_TYPELIB_PATH" ":" prefix (,(getenv "GI_TYPELIB_PATH"))))
 
              ;; Avoid printing locale warnings, which trip up the text
diff --git a/gnu/packages/django.scm b/gnu/packages/django.scm
index f157db9ba2..914217a84e 100644
--- a/gnu/packages/django.scm
+++ b/gnu/packages/django.scm
@@ -7,6 +7,7 @@
 ;;; Copyright © 2018 Vijayalakshmi Vedantham <vijimay12@gmail.com>
 ;;; Copyright © 2019 Sam <smbaines8@gmail.com>
 ;;; Copyright © 2020, 2021 Marius Bakke <marius@gnu.org>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -63,8 +64,7 @@
              ;; The test-suite tests timezone-dependent functions, thus tzdata
              ;; needs to be available.
              (setenv "TZDIR"
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo"))
+                     (search-input-directory inputs "share/zoneinfo"))
 
              ;; Disable test for incorrect timezone: it only raises the
              ;; expected error when /usr/share/zoneinfo exists, even though
@@ -74,24 +74,11 @@
              (substitute* "tests/settings_tests/tests.py"
                ((".*def test_incorrect_timezone.*" all)
                 (string-append "    @unittest.skipIf(True, 'Disabled by Guix')\n"
-                               all)))
-
-             ;; Preserve the PYTHONPATH created by Guix when running the tests.
-             (substitute* "tests/admin_scripts/tests.py"
-               (("python_path = \\[")
-                (string-append "python_path = ['"
-                               (string-join
-                                (string-split (getenv "PYTHONPATH") #\:)
-                                "','")
-                               "', ")))
-
-             #t))
+                               all)))))
          (replace 'check
            (lambda* (#:key tests? #:allow-other-keys)
              (if tests?
                  (with-directory-excursion "tests"
-                   (setenv "PYTHONPATH"
-                           (string-append "..:" (getenv "PYTHONPATH")))
                    (invoke "python" "runtests.py"
                            ;; By default tests run in parallel, which may cause
                            ;; various race conditions.  Run sequentially for
@@ -332,23 +319,18 @@ size and quality.")
          (replace 'check
            (lambda* (#:key tests? inputs outputs #:allow-other-keys)
              (if tests?
-                 (begin
-                   (add-installed-pythonpath inputs outputs)
-                   (setenv "PYTHONPATH"
-                           (string-append ".:" ;for pytest_django_test
-                                          (getenv "PYTHONPATH")))
-                   (setenv "PYTEST_DJANGO_TEST_RUNNER" "pytest")
-                   (setenv "DJANGO_SETTINGS_MODULE"
-                           "pytest_django_test.settings_sqlite_file")
-                   (invoke "pytest" "-vv" "-k"
-                           ;; FIXME: these tests fail to locate Django templates ...
-                           (string-append "not test_django_not_loaded_without_settings"
-                                          " and not test_settings"
-                                          ;; ... and this does not discover
-                                          ;; 'pytest_django_test'.
-                                          " and not test_urls_cache_is_cleared")))
-                 (format #t "test suite not run~%"))
-             #t)))))
+               (begin
+                 (setenv "PYTEST_DJANGO_TEST_RUNNER" "pytest")
+                 (setenv "DJANGO_SETTINGS_MODULE"
+                         "pytest_django_test.settings_sqlite_file")
+                 (invoke "python" "-m" "pytest" "-vv" "-k"
+                         ;; FIXME: these tests fail to locate Django templates ...
+                         (string-append "not test_django_not_loaded_without_settings"
+                                        " and not test_settings"
+                                        ;; ... and this does not discover
+                                        ;; 'pytest_django_test'.
+                                        " and not test_urls_cache_is_cleared")))
+               (format #t "test suite not run~%")))))))
     (native-inputs
      `(("python-django" ,python-django)
        ("python-setuptools-scm" ,python-setuptools-scm)
@@ -356,7 +338,7 @@ size and quality.")
        ;; For tests.
        ("python-pytest-xdist" ,python-pytest-xdist)))
     (propagated-inputs
-     `(("python-pytest" ,python-pytest-6)))
+     `(("python-pytest" ,python-pytest)))
     (home-page "https://pytest-django.readthedocs.org/")
     (synopsis "Django plugin for py.test")
     (description "Pytest-django is a plugin for py.test that provides a set of
@@ -718,9 +700,6 @@ project aims to bulk update given objects using one query over Django ORM.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH"
-                     (string-append "./build/lib:"
-                                    (getenv "PYTHONPATH")))
              (invoke "coverage" "run" "--source" "contact_form"
                      "runtests.py"))))))
     (native-inputs
@@ -779,14 +758,9 @@ entries, photos, book chapters, or anything else.")
                 (which "env")))))
          (replace 'check
            (lambda*(#:key tests? #:allow-other-keys)
-             (or
-              (not tests?)
-              (begin
-                (setenv "PYTHONPATH"
-                        (string-append (getcwd) ":"
-                                       (getenv "PYTHONPATH")))
-                (setenv "DJANGO_SETTINGS_MODULE" "tests.settings")
-                (invoke "django-admin" "test" "tests"))))))))
+             (when tests?
+               (setenv "DJANGO_SETTINGS_MODULE" "tests.settings")
+               (invoke "django-admin" "test" "tests")))))))
     (native-inputs
      `(("python-django" ,python-django)))
     (propagated-inputs
@@ -913,10 +887,8 @@ using Python multiprocessing.")
      `(#:phases (modify-phases %standard-phases
                   (replace 'check
                     (lambda _
-                      (setenv "PYTHONPATH" (string-append "./test_project:"
-                                                          "./build/lib:.:"
-                                                          (getenv "PYTHONPATH")))
-                      (invoke "django-admin.py" "test" "--settings=settings"))))))
+                      (invoke "python" "django-admin.py"
+                              "test" "--settings=settings"))))))
     (native-inputs
      `(("python-django" ,python-django)))
     (home-page "https://github.com/jazzband/django-sortedm2m")
@@ -942,10 +914,8 @@ the order of added relations.")
      '(#:phases (modify-phases %standard-phases
                   (replace 'check
                     (lambda _
-                      (setenv "PYTHONPATH" (string-append ".:"
-                                                          (getenv "PYTHONPATH")))
                       (setenv "DJANGO_SETTINGS_MODULE" "tests.test_settings")
-                      (invoke "django-admin.py" "test" "-v2"))))))
+                      (invoke "python" "django-admin.py" "test" "-v2"))))))
     (native-inputs
      `(("python-django" ,python-django)))
     (home-page "https://github.com/django-compressor/django-appconf")
@@ -977,9 +947,7 @@ name is purely coincidental.")
      '(#:phases (modify-phases %standard-phases
                   (replace 'check
                     (lambda _
-                      (setenv "PYTHONPATH"
-                              (string-append "./tests/test_project:./build/lib:"
-                                             (getenv "PYTHONPATH")))
+                      (setenv "PYTHONPATH" "./tests/test_project")
                       (setenv "DJANGO_SETTINGS_MODULE" "project.settings")
                       (invoke "pytest" "-vv"))))))
     (native-inputs
@@ -1296,15 +1264,11 @@ to ElasticSearch.")
                       ;; Do not depend on compatibility package for old
                       ;; Python versions.
                       (substitute* "requirements.txt"
-                        (("enum-compat") ""))
-                      #t))
+                        (("enum-compat") ""))))
                   (replace 'check
                     (lambda* (#:key tests? #:allow-other-keys)
                       (if tests?
                           (begin
-                            (setenv "PYTHONPATH"
-                                    (string-append "./build/lib:.:"
-                                                   (getenv "PYTHONPATH")))
                             (setenv "DJANGO_SETTINGS_MODULE"
                                     "test_project.settings")
                             (invoke "pytest" "-vv" "--doctest-modules"
diff --git a/gnu/packages/dlang.scm b/gnu/packages/dlang.scm
index 88a0887a0a..dc22ea2e62 100644
--- a/gnu/packages/dlang.scm
+++ b/gnu/packages/dlang.scm
@@ -125,7 +125,7 @@ and freshness without requiring additional information from the user.")
                  (("echo") (which "echo")))
                (substitute* "runtime/phobos/std/datetime.d"
                  (("/usr/share/zoneinfo/")
-                  (string-append (assoc-ref inputs "tzdata") "/share/zoneinfo"))
+                  (search-input-directory inputs "share/zoneinfo"))
                  (("tzName == \"[+]VERSION\"")
                   "(tzName == \"+VERSION\" || std.algorithm.endsWith(tzName, \"/leapseconds\"))"))
                (substitute* "tests/d2/dmd-testsuite/Makefile"
@@ -261,7 +261,7 @@ bootstrapping more recent compilers written in D.")
              (lambda* (#:key inputs outputs #:allow-other-keys)
                ;; some tests call into gdb binary which needs SHELL and CC set
                (setenv "SHELL" (which "sh"))
-               (setenv "CC" (string-append (assoc-ref inputs "gcc") "/bin/gcc"))
+               (setenv "CC" (search-input-file inputs "/bin/gcc"))
                (invoke "make" "test" "-j" (number->string (parallel-job-count))))))))
       (native-inputs
        `(("llvm" ,llvm-6)
diff --git a/gnu/packages/docbook.scm b/gnu/packages/docbook.scm
index 1945fb6a4b..9f47dadd5d 100644
--- a/gnu/packages/docbook.scm
+++ b/gnu/packages/docbook.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2016 Mathieu Lirzin <mthl@gnu.org>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
@@ -28,13 +28,16 @@
   #:use-module (gnu packages imagemagick)
   #:use-module (gnu packages inkscape)
   #:use-module (gnu packages tex)
+  #:use-module (gnu packages perl)
   #:use-module (gnu packages python)
   #:use-module (gnu packages base)
+  #:use-module (gnu packages web-browsers)
   #:use-module (gnu packages xml)
   #:use-module (guix licenses)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module ((guix build utils) #:select (alist-replace))
+  #:use-module (guix build-system gnu)
   #:use-module (guix build-system trivial)
   #:use-module (guix build-system python))
 
@@ -170,15 +173,17 @@ by no means limited to these applications.)  This package provides XML DTDs.")
 (define-public docbook-xsl
   (package
     (name "docbook-xsl")
-    (version "1.79.1")
+    (version "1.79.2")
     (source (origin
               (method url-fetch)
-              (uri (string-append "mirror://sourceforge/docbook/docbook-xsl/"
-                                  version "/docbook-xsl-" version ".tar.bz2"))
-              (patches (search-patches "docbook-xsl-nonrecursive-string-subst.patch"))
+              (uri (string-append "https://github.com/docbook/xslt10-stylesheets"
+                                  "/releases/download/release%2F" version
+                                  "/docbook-xsl-" version ".tar.bz2"))
+              (patches (search-patches "docbook-xsl-support-old-url.patch"
+                                       "docbook-xsl-nonrecursive-string-subst.patch"))
               (sha256
                (base32
-                "0s59lihif2fr7rznckxr2kfyrvkirv76r1zvidp9b5mj28p4apvj"))
+                "0wd33z41kdsybyx3ay21w6bdlmgpd9kyn3mr5y520lsf8km28r9i"))
               (modules '((guix build utils)))
               (snippet
                '(begin
@@ -186,9 +191,12 @@ by no means limited to these applications.)  This package provides XML DTDs.")
                   #t))))
     (build-system trivial-build-system)
     (arguments
-     `(#:builder (let ((name-version (string-append ,name "-" ,version)))
+     `(#:builder (begin
                    (use-modules (guix build utils))
 
+                   (define name-version
+                     (string-append ,name "-" ,version))
+
                    (let* ((bzip2  (assoc-ref %build-inputs "bzip2"))
                           (xz     (assoc-ref %build-inputs "xz"))
                           (tar    (assoc-ref %build-inputs "tar"))
@@ -382,25 +390,24 @@ the in DocBook SGML DTDs.")
 (define-public dblatex
   (package
     (name "dblatex")
-    (version "0.3.11")
+    (version "0.3.12")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/dblatex/dblatex/"
-                                  "dblatex-" version "/dblatex-"
+                                  "dblatex-" version "/dblatex3-"
                                   version ".tar.bz2"))
               (sha256
                (base32
-                "0rp1bc2lgisigscq1i7zxfd2qdaxxxld6khbcxss4pq7fpi9fzkv"))))
+                "0yd09nypswy3q4scri1dg7dr99d7gd6r2dwx0xm81l9f4y32gs0n"))))
     (build-system python-build-system)
     ;; TODO: Add xfig/transfig for fig2dev utility
     (inputs
-     `(("texlive" ,(texlive-union (list texlive-amsfonts/patched
+     `(("texlive" ,(texlive-updmap.cfg (list texlive-amsfonts
                                         texlive-latex-anysize
                                         texlive-latex-appendix
+                                        texlive-latex-bookmark
                                         texlive-latex-changebar
                                         texlive-latex-colortbl
-                                        texlive-latex-eepic
-                                        texlive-latex-eso-pic
                                         texlive-latex-fancybox
                                         texlive-latex-fancyhdr
                                         texlive-latex-fancyvrb
@@ -410,26 +417,23 @@ the in DocBook SGML DTDs.")
                                         texlive-latex-jknapltx
                                         texlive-latex-listings
                                         texlive-latex-multirow
-                                        texlive-latex-oberdiek
                                         texlive-latex-overpic
                                         texlive-latex-pdfpages
+                                        texlive-latex-refcount
                                         texlive-latex-subfigure
                                         texlive-latex-titlesec
-                                        texlive-latex-url
                                         texlive-latex-wasysym
 
-                                        texlive-fonts-ec
                                         texlive-fonts-rsfs
                                         texlive-fonts-stmaryrd
 
-                                        texlive-generic-ifxetex)))
+                                        texlive-generic-iftex)))
        ("imagemagick" ,imagemagick)     ;for convert
        ("inkscape" ,inkscape)           ;for svg conversion
        ("docbook" ,docbook-xml)
        ("libxslt" ,libxslt)))           ;for xsltproc
     (arguments
-     `(#:python ,python-2               ;'print' syntax
-       ;; Using setuptools causes an invalid "package_base" path in
+     `(;; Using setuptools causes an invalid "package_base" path in
        ;; out/bin/.dblatex-real due to a missing leading '/'.  This is caused
        ;; by dblatex's setup.py stripping the root path when creating the
        ;; script.  (dblatex's setup.py still uses distutils and thus has to
@@ -473,3 +477,88 @@ DB2LaTeX.")
    (package/inherit dblatex
      (inputs (alist-replace "imagemagick" `(,imagemagick/stable)
                             (package-inputs dblatex))))))
+
+(define-public docbook-utils
+  (package
+    (name "docbook-utils")
+    (version "0.6.14")
+    (source (origin
+              (method url-fetch)
+              ;; The original sources are not accessible anymore.
+              (uri (string-append "http://deb.debian.org/debian/pool/main/"
+                                  "d/docbook-utils/docbook-utils_"
+                                  version ".orig.tar.gz"))
+              (sha256
+               (base32
+                "1scj5vgw1xz872pq54a89blcxqqm11p90yzv8a9mqq57x27apyj8"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'patch-build-system
+                    (lambda _
+                      (substitute* (find-files "." "\\.in$")
+                        ;; Do not hard-code SGML_CATALOG_FILES.
+                        ((".*SGML_CATALOG_FILES=/etc/sgml/catalog.*") "")
+                        ;; Use OpenSP and OpenJade.
+                        (("\\bjade\\b")
+                         "openjade")
+                        (("\\bnsgmls\\b")
+                         "onsgmls"))
+                      #t))
+                  (add-after 'unpack 'patch-jw.in
+                    ;; Do not override the SGML_CATALOG_FILES environment
+                    ;; variable.
+                    (lambda _
+                      (substitute* "bin/jw.in"
+                        ((".*SGML_CATALOG_FILES=`find.*")
+                         "")
+                        (("SGML_CATALOG_FILES=`echo.*")
+                         ":\n")
+                        (("SGML_CATALOG_FILES=\"\"")
+                         ":")
+                        (("\\bwhich\\b")
+                         "command -v"))
+                      #t))
+                  (add-after 'unpack 'patch-txt-backend
+                    (lambda _
+                      ;; Locate lynx, links or w3m from the PATH, not from
+                      ;; /usr/bin.
+                      (substitute* "backends/txt"
+                        (("CONVERT=/usr/bin/")
+                         "CONVERT=")
+                        (("\\[ -x /usr/bin/([^ ]+) \\]" dummy command)
+                         (string-append "command -v " command " > /dev/null")))
+                      #t)))))
+    ;; Propagated for convenience.  All these tools are used at run time to
+    ;; provide the complete functionality of the docbook-utils commands.
+    (propagated-inputs
+     `(("texlive-jadetex" ,texlive-jadetex)
+       ("docbook-sgml" ,docbook-sgml-3.1)
+       ("docbook-dsssl" ,docbook-dsssl)
+       ("openjade" ,openjade)
+       ("opensp" ,opensp)
+       ("lynx" ,lynx)
+       ("perl-sgmls" ,perl-sgmls)))
+    (home-page "https://packages.debian.org/sid/docbook-utils")
+    (synopsis "DocBook converter to other formats")
+    (description "The docbook-utils package is a collection of utilities
+intended to ease the use of SGML and XML.
+@table @command
+@item jw
+Convert a SGML DocBook file to other formats such as Hyper Text Markup
+Language (HTML), Rich Text Format (RTF), PostScript (PS), man, Portable
+Document Format (PDF), TeX, Texinfo or plain text (txt).  It can be used
+more conveniently via the following wrappers:
+@itemx docbook2dvi Convert a SGML DocBook file to the DVI format.
+@itemx docbook2html Convert a SGML DocBook file to an HTML document.
+@itemx docbook2man Convert a SGML DocBook file a man page.
+@itemx docbook2pdf Convert a SGML DocBook file to a PDF document.
+@itemx docbook2ps Convert a SGML DocBook file to a PS document.
+@itemx docbook2rtf Convert a SGML DocBook file to a RTF document.
+@itemx docbook2tex Convert a SGML DocBook file to a TeX document.
+@itemx docbook2texi Convert a SGML DocBook file to a Texinfo document.
+@itemx docbook2txt Convert a SGML DocBook file to a plain text document.
+@item sgmldiff
+Detect the differences in markup between two SGML files.
+@end table")
+    (license gpl2+)))
diff --git a/gnu/packages/documentation.scm b/gnu/packages/documentation.scm
index 19190f4480..4313af387e 100644
--- a/gnu/packages/documentation.scm
+++ b/gnu/packages/documentation.scm
@@ -185,8 +185,8 @@ markup) can be customized and extended by the user.")
 (define-public doxygen
   (package
     (name "doxygen")
-    (version "1.8.17")
-    (home-page "http://www.doxygen.nl/")
+    (version "1.9.1")
+    (home-page "https://www.doxygen.nl/")
     (source (origin
              (method url-fetch)
              (uri (list (string-append home-page "files/doxygen-"
@@ -196,9 +196,7 @@ markup) can be customized and extended by the user.")
                                        ".src.tar.gz")))
              (sha256
               (base32
-               "16dmv0gm1x8rvbm82fmjvi213q8fxqxinm75pcf595flya59ific"))
-             (patches (search-patches "doxygen-test.patch"
-                                      "doxygen-1.8.17-runtests.patch"))))
+               "1lcif1qi20gf04qyjrx7x367669g17vz2ilgi4cmamp1whdsxbk7"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("bison" ,bison)
@@ -218,6 +216,12 @@ markup) can be customized and extended by the user.")
              '())
        #:test-target "tests"
        #:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'disable-bibtex-test
+                    (lambda _
+                      ;; Disable test that requires bibtex to avoid a
+                      ;; circular dependency.
+                      (for-each delete-file-recursively
+                                '("testing/012" "testing/012_cite.dox"))))
                   (add-before 'configure 'patch-sh
                               (lambda* (#:key inputs #:allow-other-keys)
                                 (substitute* "src/portable.cpp"
diff --git a/gnu/packages/ebook.scm b/gnu/packages/ebook.scm
index c49b2315c6..95619e1818 100644
--- a/gnu/packages/ebook.scm
+++ b/gnu/packages/ebook.scm
@@ -325,7 +325,7 @@ sip-include-dirs = [\"" pyqt "/share/sip" "\"]")))
                   ;; rather than create ..calibre-real-real-s.  For more
                   ;; information see: https://issues.guix.gnu.org/43249.
                   (find-files "." (lambda (file stat)
-                                    (not (wrapper? file)))))))
+                                    (not (wrapped-program? file)))))))
              #t)))))
     (home-page "https://calibre-ebook.com/")
     (synopsis "E-book library management software")
@@ -514,12 +514,12 @@ following formats:
                     (libmagic-path     (string-append
                                         (assoc-ref %build-inputs "file")
                                         "/lib"))
-                    (python-path     (getenv "PYTHONPATH")))
+                    (python-path     (getenv "GUIX_PYTHONPATH")))
                (wrap-program (string-append out "/bin/cozy")
                  `("LD_LIBRARY_PATH" ":" prefix (,libmagic-path))
                  `("GI_TYPELIB_PATH" ":" prefix (,gi-typelib-path))
                  `("GST_PLUGIN_SYSTEM_PATH" ":" prefix (,gst-plugin-path))
-                 `("PYTHONPATH" ":" prefix (,python-path ,pylib))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,python-path ,pylib))))
              #t)))))
     (native-inputs
      `(("desktop-file-utils" ,desktop-file-utils)
diff --git a/gnu/packages/ed.scm b/gnu/packages/ed.scm
index da4c3ddf04..accc461e9b 100644
--- a/gnu/packages/ed.scm
+++ b/gnu/packages/ed.scm
@@ -28,14 +28,14 @@
 (define-public ed
   (package
     (name "ed")
-    (version "1.16")
+    (version "1.17")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnu/ed/ed-"
                                  version ".tar.lz"))
              (sha256
               (base32
-               "0b4b1lwizvng9bvpcjnmpj2i80xz9xw2w8nfff27b2h4mca7mh6g"))))
+               "0m2yrkfjjraakxr98nsiakqrn351h99n706x9asgmdi57j43kpki"))))
     (build-system gnu-build-system)
     (native-inputs `(("lzip" ,lzip)))
     (arguments
diff --git a/gnu/packages/education.scm b/gnu/packages/education.scm
index 2f38598cab..536962dabc 100644
--- a/gnu/packages/education.scm
+++ b/gnu/packages/education.scm
@@ -101,10 +101,9 @@
          (add-after 'set-paths 'set-sdl-paths
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "CPATH"
-                     (string-append (assoc-ref inputs "sdl-mixer")
-                                    "/include/SDL:"
-                                    (or (getenv "CPATH") "")))
-             #t)))))
+                     (string-append
+                      (search-input-directory inputs "include/SDL")
+                      ":" (or (getenv "CPATH") ""))))))))
     (inputs
      `(("gtk+" ,gtk+-2)
        ("librsvg" ,librsvg)
@@ -157,8 +156,7 @@ of categories with some of the activities available in that category.
          (add-before 'check 'start-xorg-server
            (lambda* (#:key inputs #:allow-other-keys)
              ;; The test suite requires a running X server.
-             (system (string-append (assoc-ref inputs "xorg-server")
-                                    "/bin/Xvfb :1 &"))
+             (system "Xvfb :1 &")
              (setenv "DISPLAY" ":1")
              ;; The test suite wants to write to /homeless-shelter
              (setenv "HOME" (getcwd))
@@ -514,8 +512,7 @@ specialized device.")
                #t)))
          (add-after 'install 'create-executable
            (lambda* (#:key outputs inputs #:allow-other-keys)
-             (let* ((python (string-append (assoc-ref inputs "python")
-                                           "/bin/python"))
+             (let* ((python (search-input-file inputs "/bin/python"))
                     (out (assoc-ref outputs "out"))
                     (bin (string-append out "/bin"))
                     (executable (string-append bin "/childsplay")))
@@ -869,8 +866,8 @@ stored and user can review his performance in any time.")
                                     (string-prefix? "python-" label)))
                                  inputs)))
                    (qtwebengineprocess
-                    (string-append (assoc-ref inputs "qtwebengine")
-                                   "/lib/qt5/libexec/QtWebEngineProcess")))
+                    (search-input-file inputs
+                                       "lib/qt5/libexec/QtWebEngineProcess")))
                ;; The program fails to find the QtWebEngineProcess program, so
                ;; we set QTWEBENGINEPROCESS_PATH to help it.  PYTHONPATH is
                ;; wrapped to avoid declaring Python libraries as propagated
@@ -882,7 +879,7 @@ stored and user can review his performance in any time.")
                              `("PATH" prefix (,(string-append
                                                 (assoc-ref inputs "mpv")
                                                 "/bin")))
-                             `("PYTHONPATH" = ,site-packages)))
+                             `("GUIX_PYTHONPATH" = ,site-packages)))
                          (find-files bin ".")))
              #t)))))
     (native-inputs
@@ -949,9 +946,10 @@ endless.  For example:
        (modify-phases %standard-phases
          (add-after 'set-paths 'set-sdl-paths
            (lambda* (#:key inputs #:allow-other-keys)
-             (setenv "CPATH" (string-append (assoc-ref inputs "sdl")
-                                            "/include/SDL:"
-                                            (or (getenv "CPATH") "")))))
+             (setenv "CPATH"
+                     (string-append
+                      (search-input-directory inputs "/include/SDL")
+                      ":" (or (getenv "CPATH") "")))))
          (add-after 'unpack 'fix-andika-font-path
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "src/t4k_sdl.c"
@@ -1000,10 +998,10 @@ TuxMath and TuxType.")
          (add-after 'set-paths 'set-sdl-paths
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "CPATH"
-                     (string-append (assoc-ref inputs "sdl")
-                                    "/include/SDL:"
-                                    (or (getenv "CPATH") "")))
-             #t))
+                     (string-append
+                      (search-input-directory inputs "/include/SDL")
+                      ":"
+                      (or (getenv "CPATH") "")))))
          (add-after 'install 'install-desktop-file
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
diff --git a/gnu/packages/elf.scm b/gnu/packages/elf.scm
index aab912648b..2bc1d00048 100644
--- a/gnu/packages/elf.scm
+++ b/gnu/packages/elf.scm
@@ -9,6 +9,7 @@
 ;;; Copyright © 2020 Mark Wielaard <mark@klomp.org>
 ;;; Copyright © 2020 Michael Rohleder <mike@rohleder.de>
 ;;; Copyright © 2021 Leo Le Bouter <lle-bout@zaclys.net>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -32,6 +33,7 @@
   #:use-module (guix build-system gnu)
   #:use-module ((guix licenses) #:select (gpl3+ lgpl3+ lgpl2.0+))
   #:use-module (gnu packages)
+  #:use-module (gnu packages autotools)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages documentation)
   #:use-module (gnu packages gcc)
@@ -47,14 +49,14 @@
 (define-public elfutils
   (package
     (name "elfutils")
-    (version "0.182")
+    (version "0.183")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://sourceware.org/elfutils/ftp/"
                                   version "/elfutils-" version ".tar.bz2"))
               (sha256
                (base32
-                "0n48dcadjy0wiilddzav2zaxdi30qkkfp160gw5mycyz9s8hdi7c"))
+                "1igjfia9x8h6fmh9nbl8mpz0i24my5iixrji99qmi79hilh7qqy3"))
               (patches (search-patches "elfutils-tests-ptrace.patch"))))
     (build-system gnu-build-system)
 
@@ -70,6 +72,7 @@
      `(#:configure-flags (list (string-append "LDFLAGS=-Wl,-rpath="
                                               (assoc-ref %outputs "out")
                                               "/lib")
+                               "--disable-static"
                                ;; TODO: Enable the debuginfo server.  It
                                ;; increases the closure size significantly
                                ;; and presents bootstrapping problems, so
@@ -204,22 +207,32 @@ static analysis of the ELF binaries at hand.")
     (arguments
      `(#:phases
        (modify-phases %standard-phases
-         (replace 'configure
-           (lambda* (#:key outputs #:allow-other-keys)
-             ;; This old `configure' script doesn't support
-             ;; variables passed as arguments.
-             (let ((out (assoc-ref outputs "out")))
-               (setenv "CONFIG_SHELL" (which "bash"))
-               (invoke "./configure"
-                       (string-append "--prefix=" out)
-                       ,@(if (string=? "powerpc64le-linux"
-                                       (%current-system))
-                             '("--host=powerpc64le-unknown-linux-gnu")
-                             '())
-                       ,@(if (string=? "aarch64-linux"
-                                       (%current-system))
-                             '("--host=aarch64-unknown-linux-gnu")
-                             '()))))))))
+         ;; This old 'configure' script doesn't support cross-compilation
+         ;; well.  I.e., it fails to find the cross-compiler.  Also,
+         ;; the old `configure' script doesn't support variables passed as
+         ;; arguments.  A third problem is that config.sub is too old to
+         ;; recognise aarch64 and powerpc64le.
+         ;;
+         ;; Solve this by regenerating the configure script and letting
+         ;; autoreconf update 'config.sub'.  While 'config.sub' is updated
+         ;; anyway, update 'config.guess' as well.
+         (add-before 'bootstrap 'delete-configure
+           (lambda* (#:key native-inputs inputs #:allow-other-keys)
+             (delete-file "configure")
+             (delete-file "config.sub")
+             (delete-file "config.guess")
+             (for-each (lambda (file)
+                         (install-file
+                          (string-append
+                           (assoc-ref (or native-inputs inputs) "automake")
+                           "/share/automake-"
+                           ,(version-major+minor (package-version automake))
+                           "/" file) "."))
+                       '("config.sub" "config.guess")))))))
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ;; For up-to-date 'config.guess' and 'config.sub'
+       ("automake" ,automake)))
     (home-page (string-append "https://web.archive.org/web/20181111033959/"
                               "http://www.mr511.de/software/english.html"))
     (synopsis "ELF object file access library")
diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index d468abd8e2..eb4902aa8f 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014 Taylan Ulrich Bayirli/Kammer <taylanbayirli@gmail.com>
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014, 2015, 2016, 2017, 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019 Alex Kost <alezost@gmail.com>
 ;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
@@ -486,8 +486,7 @@ system.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "hypb.el"
                (("/bin/domainname")
-                (string-append (assoc-ref inputs "inetutils")
-                               "/bin/dnsdomainname")))
+                (search-input-file inputs "bin/dnsdomainname")))
              (substitute* "hyperbole.el"
                (("\\(hyperb:check-dir-user\\)") ""))))
          (add-after 'install 'install-images
@@ -695,14 +694,12 @@ on stdout instead of using a socket as the Emacsclient does.")
                  (make-file-writable "libgit.el")
                  (emacs-substitute-variables "libgit.el"
                    ("libgit--module-file"
-                    (string-append (emacs:elpa-directory out) "/libegit2.so")))
-                 #t)))
+                    (string-append (emacs:elpa-directory out) "/libegit2.so"))))))
            (add-before 'install 'prepare-for-install
              (lambda _
-               (let ((s (string-append "../" ,name "-" ,version "-checkout")))
+               (let ((s "../source"))
                  (copy-file "libegit2.so" (string-append s "/libegit2.so"))
-                 (chdir s)
-                 #t)))
+                 (chdir s))))
            (replace 'install
              (lambda* (#:key outputs #:allow-other-keys)
                (let ((install (assoc-ref emacs:%standard-phases 'install)))
@@ -1407,7 +1404,7 @@ replacement.")
                  ((f1 f2 ...) (dirname f1))
                  (_ "")))
 
-             (let ((sh (string-append (assoc-ref inputs "bash") "/bin/sh")))
+             (let ((sh (search-input-file inputs "/bin/sh")))
                (define emacs-prefix? (cut string-prefix? "emacs-" <>))
 
                (setenv "SHELL" "sh")
@@ -2562,7 +2559,7 @@ as a library for other Emacs packages.")
            (lambda* (#:key inputs #:allow-other-keys)
              (emacs-substitute-variables "preview.el"
                ("preview-gs-command"
-                (string-append (assoc-ref inputs "ghostscript") "/bin/gs")))
+                (search-input-file inputs "/bin/gs")))
              (substitute* "preview.el"
                (("\"dvipng ")
                 (string-append "\"" (assoc-ref inputs "texlive")
@@ -2588,7 +2585,7 @@ as a library for other Emacs packages.")
      `(("perl" ,perl)))
     (inputs
      `(("ghostscript" ,ghostscript)
-       ("texlive" ,(texlive-union (list texlive-amsfonts/patched)))))
+       ("texlive" ,(texlive-updmap.cfg (list texlive-amsfonts)))))
     (home-page "https://www.gnu.org/software/auctex/")
     (synopsis "Integrated environment for TeX")
     (description
@@ -2926,8 +2923,7 @@ into mode hooks and is intended to be used that way.")
              (chmod "ggtags.el" #o644)
              (emacs-substitute-variables "ggtags.el"
                ("ggtags-executable-directory"
-                (string-append (assoc-ref inputs "global") "/bin")))
-             #t)))))
+                (dirname (search-input-file inputs "bin/global")))))))))
     (home-page "https://github.com/leoliu/ggtags")
     (synopsis "Frontend to the GNU Global source code tagging system")
     (description "@code{ggtags} provides a frontend to the GNU Global source
@@ -3033,7 +3029,7 @@ directly inside Emacs.  It requires a Google Map Static API key to function.")
              (with-directory-excursion "texinfo"
                (substitute* "Makefile"
                  (("\\/usr\\/bin\\/gzip")
-                  (string-append (assoc-ref inputs "gzip") "/bin/gzip")))
+                  (search-input-file inputs "/bin/gzip")))
                (invoke "make"
                        "clean"
                        "info"
@@ -5497,8 +5493,7 @@ for Flow files.")
          (add-after 'unpack 'specify-python-location
            ;; Hard-code python3 executable location in the library.
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((python3 (string-append (assoc-ref inputs "python")
-                                           "/bin/python3")))
+             (let ((python3 (search-input-file inputs "/bin/python3")))
                (substitute* '("flycheck-grammalecte.el" "grammalecte.el")
                  (("\"python3") (string-append "\"" python3)))
                (substitute* '("conjugueur.py" "flycheck_grammalecte.py")
@@ -5509,10 +5504,11 @@ for Flow files.")
              (make-file-writable "grammalecte.el")
              (emacs-substitute-variables "grammalecte.el"
                ("grammalecte-python-package-directory"
-                (string-append (assoc-ref inputs "grammalecte")
-                               "/lib/python"
-                               ,(version-major+minor (package-version python))
-                               "/site-packages/grammalecte")))))
+                (search-input-directory
+                 inputs
+                 (string-append "lib/python"
+                                ,(version-major+minor (package-version python))
+                                "/site-packages/grammalecte"))))))
          (add-after 'unpack 'do-not-phone-home
            ;; Do not check for Grammalecte updates, ever.
            (lambda _
@@ -9362,9 +9358,7 @@ queries using counsel.")
                (make-file-writable "counsel-notmuch.el")
                (emacs-substitute-variables "counsel-notmuch.el"
                  ("counsel-notmuch-path"
-                  (string-append (assoc-ref inputs "notmuch")
-                                 "/bin/notmuch")))
-               #t)))))
+                  (search-input-file inputs "/bin/notmuch"))))))))
       (inputs
        `(("emacs-counsel" ,emacs-counsel)
          ("notmuch" ,notmuch)
@@ -13059,8 +13053,7 @@ highlights quasi-quoted expressions.")
                     (bin (string-append out "/bin"))
                     (lisp (string-append out "/share/emacs/site-lisp/emacspeak"))
                     (info (string-append out "/share/info"))
-                    (emacs (string-append (assoc-ref inputs "emacs")
-                                          "/bin/emacs")))
+                    (emacs (search-input-file inputs "/bin/emacs")))
                ;; According to etc/install.org, the Emacspeak directory should
                ;; be copied to its installation destination.
                (for-each
@@ -13786,10 +13779,10 @@ It should enable you to implement low-level X11 applications.")
                    (format #t "#!~a ~@
                      ~a +SI:localuser:$USER ~@
                      exec ~a --exit-with-session ~a \"$@\" --eval '~s' ~%"
-                           (string-append (assoc-ref inputs "bash") "/bin/sh")
-                           (string-append (assoc-ref inputs "xhost") "/bin/xhost")
-                           (string-append (assoc-ref inputs "dbus") "/bin/dbus-launch")
-                           (string-append (assoc-ref inputs "emacs") "/bin/emacs")
+                           (search-input-file inputs "/bin/sh")
+                           (search-input-file inputs "/bin/xhost")
+                           (search-input-file inputs "/bin/dbus-launch")
+                           (search-input-file inputs "/bin/emacs")
                            '(cond
                              ((file-exists-p "~/.exwm")
                               (load-file "~/.exwm"))
@@ -13902,10 +13895,10 @@ other operations.")
                    (format #t "#!~a ~@
                      ~a +SI:localuser:$USER ~@
                      exec ~a --exit-with-session ~a \"$@\" --eval '~s' ~%"
-                           (string-append (assoc-ref inputs "bash") "/bin/sh")
-                           (string-append (assoc-ref inputs "xhost") "/bin/xhost")
-                           (string-append (assoc-ref inputs "dbus") "/bin/dbus-launch")
-                           (string-append (assoc-ref inputs "emacs") "/bin/emacs")
+                           (search-input-file inputs "/bin/sh")
+                           (search-input-file inputs "/bin/xhost")
+                           (search-input-file inputs "/bin/dbus-launch")
+                           (search-input-file inputs "/bin/emacs")
                            '(require 'exwmx-loader))))
                (chmod exwm-executable #o555)
                #t))))))
@@ -23447,7 +23440,7 @@ processes for Emacs")
                (chmod "src/elisp/treemacs-customization.el" #o644)
                (emacs-substitute-variables "src/elisp/treemacs-customization.el"
                  ("treemacs-python-executable"
-                  (string-append (assoc-ref inputs "python") "/bin/python3")))
+                  (search-input-file inputs "/bin/python3")))
                (chmod "src/elisp/treemacs-async.el" #o644)
                (substitute* "src/elisp/treemacs-async.el"
                  (("src/scripts") (string-append "share/" ,name "/scripts"))))
@@ -26403,14 +26396,14 @@ service, and connect it with Emacs via inter-process communication.")
          (add-after 'unpack 'patch-sources
            (lambda* (#:key inputs #:allow-other-keys)
              ;; Hard-code paths to `ffplay` and `ffmpeg`.
-             (let* ((ffmpeg (assoc-ref inputs "ffmpeg"))
-                    (ffmpeg-bin (string-append ffmpeg "/bin/ffmpeg"))
-                    (ffplay-bin (string-append ffmpeg "/bin/ffplay")))
+             (let* ((ffplay-bin (search-input-file inputs "/bin/ffplay"))
+                    (ffmpeg-bin (search-input-file inputs "/bin/ffmpeg")))
                (substitute* '("telega-ffplay.el" "telega-vvnote.el")
                  (("(shell-command-to-string\|concat) \"(ffmpeg\|ffprobe)"
                    all func cmd)
-                  (string-append func " \"" (assoc-ref inputs "ffmpeg")
-                                 "/bin/" cmd))
+                  (string-append func " \""
+                                 (search-input-file
+                                  inputs (string-append "/bin/" cmd))))
                  (("\\(executable-find \"ffplay\"\\)")
                   (string-append "(and (file-executable-p \"" ffplay-bin "\")"
                                  "\"" ffplay-bin "\")"))
@@ -26421,8 +26414,7 @@ service, and connect it with Emacs via inter-process communication.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (substitute* "telega-server.el"
                (("@TELEGA_SERVER_BIN@")
-                (string-append (assoc-ref inputs "emacs-telega-server")
-                               "/bin/telega-server")))
+                (search-input-file inputs "/bin/telega-server")))
              (substitute* "telega-util.el"
                (("@TELEGA_SHARE@")
                 (string-append (assoc-ref outputs "out")
@@ -26738,9 +26730,8 @@ REPL appropriate to the current major mode.")
              (make-file-writable "rime.el")
              (emacs-substitute-variables "rime.el"
                ("rime-share-data-dir"
-                (string-append (assoc-ref inputs "rime-data")
-                               "/share/rime-data")))
-             #t))
+                (search-input-directory inputs
+                                        "share/rime-data")))))
          (add-before 'install 'build-emacs-module
            (lambda _
              (invoke "make" "lib"))))))
@@ -27714,9 +27705,7 @@ emoji.")
              (make-file-writable "exiftool.el")
              (emacs-substitute-variables "exiftool.el"
                ("exiftool-executable"
-                (string-append (assoc-ref inputs "perl-image-exiftool")
-                               "/bin/exiftool")))
-             #t)))))
+                (search-input-file inputs "/bin/exiftool"))))))))
     (inputs
      `(("perl-image-exiftool" ,perl-image-exiftool)))
     (home-page "https://git.systemreboot.net/exiftool.el/about/")
diff --git a/gnu/packages/emacs.scm b/gnu/packages/emacs.scm
index 1edbaa463a..060a253968 100644
--- a/gnu/packages/emacs.scm
+++ b/gnu/packages/emacs.scm
@@ -71,6 +71,7 @@
   #:use-module (gnu packages xml)
   #:use-module (gnu packages xorg)
   #:use-module (guix utils)
+  #:use-module (ice-9 match)
   #:use-module (srfi srfi-1))
 
 (define-public emacs
@@ -266,7 +267,12 @@
        ("libpng" ,libpng)
        ("zlib" ,zlib)
 
-       ("librsvg" ,librsvg)
+       ;; librsvg is an optional dependency that pulls in rust.  Rust is not
+       ;; supported well on every architecture yet.
+       ,@(if (string-prefix? "x86_64" (or (%current-target-system)
+                                          (%current-system)))
+             `(("librsvg" ,librsvg))
+             '())
        ("libxpm" ,libxpm)
        ("libxml2" ,libxml2)
        ("libice" ,libice)
diff --git a/gnu/packages/emulators.scm b/gnu/packages/emulators.scm
index 670e96aeb7..2f6c950011 100644
--- a/gnu/packages/emulators.scm
+++ b/gnu/packages/emulators.scm
@@ -283,11 +283,10 @@ console.")
            (add-before 'configure 'generate-fonts&hardcore-libvulkan-path
              (lambda* (#:key inputs outputs #:allow-other-keys)
                (let ((fontfile
-                      (string-append (assoc-ref inputs "font-wqy-microhei")
-                                     "/share/fonts/truetype/wqy-microhei.ttc"))
+                      (search-input-file inputs
+                                         "/share/fonts/truetype/wqy-microhei.ttc"))
                      (libvulkan
-                      (string-append (assoc-ref inputs "vulkan-loader")
-                                     "/lib/libvulkan.so")))
+                      (search-input-file inputs "/lib/libvulkan.so")))
                  (chdir "docs")
                  (invoke "bash" "-c" "g++ -O2 $(freetype-config \
 --cflags --libs) gc-font-tool.cpp -o gc-font-tool")
@@ -616,8 +615,7 @@ and a game metadata scraper.")
                       (bin (string-append out "/bin"))
                       (higan (string-append bin "/higan"))
                       (higan-original (string-append higan "-original"))
-                      (bash (string-append (assoc-ref inputs "bash")
-                                           "/bin/bash"))
+                      (bash (search-input-file inputs "/bin/bash"))
                       (coreutils (assoc-ref inputs "coreutils"))
                       (mkdir (string-append coreutils "/bin/mkdir"))
                       (cp (string-append coreutils "/bin/cp"))
@@ -2049,8 +2047,7 @@ emulator.")
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "cmake/FindCdio.cmake"
                  (("/usr/include/cdio")
-                  (string-append (assoc-ref inputs "libcdio") "/include/cdio")))
-               #t))
+                  (search-input-directory inputs "/include/cdio")))))
            (add-after 'install 'wrap-program
              (lambda* (#:key inputs outputs #:allow-other-keys)
                (wrap-program (string-append (assoc-ref outputs "out")
@@ -2193,17 +2190,6 @@ performance, features, and ease of use.")
                     (guix build utils))
          #:phases
          (modify-phases %standard-phases
-           (add-after 'unpack 'install-bindings-to-python-output
-             (lambda* (#:key outputs #:allow-other-keys)
-               ;; python-build-system will build the bindings and install them to
-               ;; the "out" output, so change the build-internal names of the
-               ;; outputs.
-               ;;
-               ;; TODO: remove this once #40469 lands, through the core-updates
-               ;; holding zone, on master.
-               (set-car! (assoc "out" outputs) "lib")
-               (set-car! (assoc "python" outputs) "out")
-               #t))
            (add-before 'build 'build-library
              (lambda* (#:key inputs #:allow-other-keys)
                (invoke "make"
@@ -2216,7 +2202,7 @@ performance, features, and ease of use.")
                        "UNICORN_STATIC=no"
                        (string-append
                         "PREFIX="
-                        (assoc-ref outputs "lib")))))
+                        (assoc-ref outputs "out")))))
            (add-before 'build 'prepare-bindings
              (lambda* (#:key outputs #:allow-other-keys)
                (chdir "bindings/python")
@@ -2229,7 +2215,7 @@ performance, features, and ease of use.")
                  (("_path_list = \\[.*")
                   (string-append
                    "_path_list = [\""
-                   (assoc-ref outputs "lib")
+                   (assoc-ref outputs "out")
                    ;; eat the rest of the list
                    "/lib\"] + 0*[")))
                #t))
@@ -2250,10 +2236,10 @@ performance, features, and ease of use.")
                (let* ((python-samples (find-files "." "sample_.*"))
                       (c-samples (find-files "../../samples" ".*\\.c"))
                       (python-docdir
-                        (string-append (assoc-ref outputs "out")
+                        (string-append (assoc-ref outputs "python")
                                        "/share/doc/unicorn/samples"))
                       (c-docdir
-                        (string-append (assoc-ref outputs "lib")
+                        (string-append (assoc-ref outputs "out")
                                        "/share/doc/unicorn/samples")))
                  (for-each (cut install-file <> c-docdir) c-samples)
                  (for-each (cut install-file <> python-docdir) python-samples)
diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index fc932ddb28..74e95cfc9e 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -335,12 +335,10 @@ utilities.")
              (substitute* '("libleptongui/scheme/schematic/ffi/gtk.scm.in"
                             "utils/attrib/lepton-attrib.scm")
                (("@LIBGTK@")
-                (string-append (assoc-ref inputs "gtk")
-                               "/lib/libgtk-3.so")))
+                (search-input-file inputs "/lib/libgtk-3.so")))
              (substitute* '("libleptongui/scheme/schematic/ffi/gobject.scm.in")
                (("@LIBGOBJECT@")
-                (string-append (assoc-ref inputs "glib")
-                               "/lib/libgobject-2.0.so")))
+                (search-input-file inputs "/lib/libgobject-2.0.so")))
              (substitute* "liblepton/scheme/lepton/ffi.scm.in"
                (("@LIBLEPTON@")
                 (string-append (assoc-ref outputs "out")
@@ -351,8 +349,7 @@ utilities.")
                                "/lib/libleptonattrib.so")))
              (substitute* "liblepton/scheme/lepton/log.scm.in"
                (("@LIBGLIB@")
-                (string-append (assoc-ref inputs "glib")
-                               "/lib/libglib-2.0.so")))
+                (search-input-file inputs "/lib/libglib-2.0.so")))
 
              ;; For finding libraries when running tests before installation.
              (setenv "LIBLEPTONGUI"
@@ -437,7 +434,8 @@ features.")))
              ;; fix of the mesa package we wrap the pcb executable such that
              ;; Mesa can find libudev.so.0 through LD_LIBRARY_PATH.
              (let* ((out (assoc-ref outputs "out"))
-                    (path (string-append (assoc-ref inputs "udev") "/lib")))
+                    (path (dirname
+                           (search-input-file inputs "/lib/libudev.so"))))
                (wrap-program (string-append out "/bin/pcb")
                  `("LD_LIBRARY_PATH" ":" prefix (,path))))
              #t))
@@ -526,7 +524,7 @@ featuring various improvements and bug fixes.")))
      ;; FIXME: with texlive-tiny citation references are rendered as question
      ;; marks.  During the build warnings like these are printed:
      ;; LaTeX Warning: Citation `nabors91' on page 2 undefined on input line 3.
-     `(("texlive" ,(texlive-union (list texlive-fonts-amsfonts)))
+     `(("texlive" ,(texlive-updmap.cfg (list texlive-fonts-amsfonts)))
        ("ghostscript" ,ghostscript)))
     (arguments
      `(#:make-flags '("CC=gcc" "RM=rm" "SHELL=sh" "all")
@@ -948,9 +946,9 @@ Emacs).")
                            ,(version-major+minor
                              (package-version python))
                            "/site-packages:"
-                           (getenv "PYTHONPATH"))))
+                           (getenv "GUIX_PYTHONPATH"))))
                (wrap-program file
-                 `("PYTHONPATH" ":" prefix (,path))
+                 `("GUIX_PYTHONPATH" ":" prefix (,path))
                  `("PATH" ":" prefix
                    (,(string-append python "/bin:")))))
              #t)))))
@@ -1205,9 +1203,9 @@ the 'showing the effect of'-style of operation.")
                            ,(version-major+minor
                              (package-version python))
                            "/site-packages:"
-                           (getenv "PYTHONPATH"))))
+                           (getenv "GUIX_PYTHONPATH"))))
                (wrap-program file
-                 `("PYTHONPATH" ":" prefix (,path))
+                 `("GUIX_PYTHONPATH" ":" prefix (,path))
                  `("PATH" ":" prefix
                    (,(string-append python "/bin:")))))
              #t)))))
@@ -1966,19 +1964,14 @@ parallel computing platforms.  It also supports serial execution.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "freehdl/freehdl-config"
                (("pkg-config")
-                (string-append (assoc-ref inputs "pkg-config")
-                               "/bin/pkg-config"))
+                (search-input-file inputs "/bin/pkg-config"))
                (("cat")
-                (string-append (assoc-ref inputs "coreutils")
-                               "/bin/cat")))
-             #t))
+                (search-input-file inputs "/bin/cat")))))
          (add-after 'patch-pkg-config 'setenv
            (lambda* (#:key inputs #:allow-other-keys)
-             (setenv "CXX" (string-append (assoc-ref inputs "gcc")
-                                          "/bin/g++"))
-             (setenv "SYSTEM_LIBTOOL" (string-append (assoc-ref inputs "libtool")
-                                                     "/bin/libtool"))
-             #t))
+             (setenv "CXX" (search-input-file inputs "/bin/g++"))
+             (setenv "SYSTEM_LIBTOOL"
+                     (search-input-file inputs "/bin/libtool"))))
          (add-after 'setenv 'patch-gvhdl
            (lambda _
              (substitute* "v2cc/gvhdl.in"
@@ -1989,7 +1982,7 @@ parallel computing platforms.  It also supports serial execution.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "freehdl/freehdl-gennodes.in"
                (("guile")
-                (string-append (assoc-ref inputs "guile") "/bin/guile"))
+                (search-input-file inputs "/bin/guile"))
                (("\\(debug") ";(debug")
                (("\\(@ ") "(apply-emit")
                (("\\(@@ ") "(apply-mini-format"))
@@ -2068,8 +2061,7 @@ parallel computing platforms.  It also supports serial execution.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (mkdir-p "build")
              (chdir "build")
-             (let ((lrelease (string-append (assoc-ref inputs "qttools")
-                                            "/bin/lrelease"))
+             (let ((lrelease (search-input-file inputs "/bin/lrelease"))
                    (out (assoc-ref outputs "out")))
                (invoke "qmake"
                        (string-append "QMAKE_LRELEASE=" lrelease)
@@ -2763,9 +2755,7 @@ GUI.")
                 "06qgry1pal2vampmbmc1lzlhf1qnjkd8py781r5h020v981n6y5s"))))
     (build-system gnu-build-system)
     ;; The GUI, which we elide, requires tcl and tk.
-    (native-inputs `(;; Requires bison 3.6+ but we currently only have 3.5.
-                     ;; Bison 3.6 will be available in the next core update.
-                     ("bison-3.6" ,bison-3.6)
+    (native-inputs `(("bison" ,bison)
                      ("clisp" ,clisp)
                      ("dejagnu" ,dejagnu)
                      ("flex" ,flex)
diff --git a/gnu/packages/entr.scm b/gnu/packages/entr.scm
index 5ca40690dd..9a7a3daef6 100644
--- a/gnu/packages/entr.scm
+++ b/gnu/packages/entr.scm
@@ -59,11 +59,11 @@
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "entr.c"
                (("/bin/sh" command)
-                (string-append (assoc-ref inputs "bash") command))
+                (search-input-file inputs command))
                (("/bin/cat" command)
-                (string-append (assoc-ref inputs "coreutils") command))
+                (search-input-file inputs command))
                (("/usr(/bin/clear)" _ command)
-                (string-append (assoc-ref inputs "ncurses") command)))
+                (search-input-file inputs command)))
              #t)))))
     (inputs
      `(("bash" ,bash)
diff --git a/gnu/packages/file-systems.scm b/gnu/packages/file-systems.scm
index b6d0bcbc55..94f3c7e6d7 100644
--- a/gnu/packages/file-systems.scm
+++ b/gnu/packages/file-systems.scm
@@ -868,7 +868,8 @@ All of this is accomplished without a centralized metadata server.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* (list "eatmydata.in" "eatmydata.sh.in")
                (("basename|readlink|uname" command)
-                (string-append (assoc-ref inputs "coreutils") "/bin/" command)))))
+                (search-input-file inputs
+                                   (string-append "bin/" command))))))
          (add-before 'patch-file-names 'tighten-symlink-mode
            ;; When the ‘eatmydata’ helper detects that it's a symlink, it will
            ;; transparently invoke the command of the same name.  However, it's
@@ -1046,11 +1047,9 @@ APFS.")
                                              (assoc-ref inputs "bash")
                                              match))
                              (("/bin/(rm|true)" match)
-                              (string-append (assoc-ref inputs "coreutils")
-                                             match))
+                              (search-input-file inputs match))
                              (("/usr(/bin/time)" _ match)
-                              (string-append (assoc-ref inputs "time")
-                                             match))))
+                              (search-input-file inputs match))))
                          (append (find-files "common" ".*")
                                  (find-files "tests" ".*")
                                  (find-files "tools" ".*")
@@ -1097,8 +1096,7 @@ APFS.")
                  (with-output-to-file helper
                    (lambda _
                      (format #t "#!~a --no-auto-compile\n!#\n"
-                             (string-append (assoc-ref inputs "guile")
-                                            "/bin/guile"))
+                             (search-input-file inputs "/bin/guile"))
                      (write
                       `(begin
                          (define (try proc dir)
@@ -1407,8 +1405,9 @@ On Guix System, you will need to invoke the included shell scripts as
              (substitute* '("libfuse/lib/mount_util.c"
                             "libfuse/util/mount_util.c")
                (("/bin/(u?)mount" _ maybe-u)
-                (string-append (assoc-ref inputs "util-linux")
-                               "/bin/" maybe-u "mount")))
+                (search-input-file inputs
+                                   (string-append "bin/" maybe-u
+                                                  "mount"))))
              (substitute* '("libfuse/util/mount.mergerfs.c")
                (("/bin/sh" command)
                 (string-append (assoc-ref inputs "bash-minimal") command))))))))
@@ -1461,10 +1460,9 @@ is similar to mhddfs, unionfs, and aufs.")
                   (string-append "'" (assoc-ref inputs "coreutils") "/bin/rm'")))
                (substitute* "src/mergerfs.mktrash"
                  (("xattr")
-                  (string-append (assoc-ref inputs "python-xattr") "/bin/xattr"))
+                  (search-input-file inputs "/bin/xattr"))
                  (("mkdir")
-                  (string-append (assoc-ref inputs "coreutils") "/bin/mkdir")))
-               #t)))))
+                  (search-input-file inputs "/bin/mkdir"))))))))
       (synopsis "Tools to help manage data in a mergerfs pool")
       (description "mergerfs-tools is a suite of programs that can audit
 permissions and ownership of files and directories on a mergerfs volume,
diff --git a/gnu/packages/file.scm b/gnu/packages/file.scm
index 3f1145b520..6fb98244f9 100644
--- a/gnu/packages/file.scm
+++ b/gnu/packages/file.scm
@@ -4,6 +4,7 @@
 ;;; Copyright © 2016, 2017 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2020 Michael Rohleder <mike@rohleder.de>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -30,14 +31,14 @@
 (define-public file
   (package
     (name "file")
-    (version "5.38")
+    (version "5.39")
     (source (origin
               (method url-fetch)
               (uri (string-append "ftp://ftp.astron.com/pub/file/file-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "0d7s376b4xqymnrsjxi3nsv3f5v89pzfspzml2pcajdk5by2yg2r"))))
+                "1lgs2w2sgamzf27kz5h7pajz7v62554q21fbs11n4mfrfrm2hpgh"))))
    (build-system gnu-build-system)
 
    ;; When cross-compiling, this package depends upon a native install of
diff --git a/gnu/packages/finance.scm b/gnu/packages/finance.scm
index 76bf0dc28d..e6c2a42e71 100644
--- a/gnu/packages/finance.scm
+++ b/gnu/packages/finance.scm
@@ -343,8 +343,8 @@ and dynamically with report tools based on filtering and graphical charts.")
            ;; One test fails if it can't set the timezone.
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "TZDIR"
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo"))
+                     (search-input-directory inputs
+                                             "share/zoneinfo"))
              ;; Skip failing test BaselineTest_cmd-org.
              ;; This is a known upstream issue. See
              ;; https://github.com/ledger/ledger/issues/550
@@ -823,8 +823,7 @@ the Monero command line client and daemon.")
            ;; The monerod program must be available so that monero-wallet-gui
            ;; can start a Monero daemon if necessary.
            (lambda* (#:key inputs outputs #:allow-other-keys)
-             (symlink (string-append (assoc-ref inputs "monero")
-                                     "/bin/monerod")
+             (symlink (search-input-file inputs "/bin/monerod")
                       (string-append (assoc-ref outputs "out")
                                      "/bin/monerod")))))))
     (home-page "https://web.getmonero.org/")
diff --git a/gnu/packages/flashing-tools.scm b/gnu/packages/flashing-tools.scm
index e0a099e966..3961bdf409 100644
--- a/gnu/packages/flashing-tools.scm
+++ b/gnu/packages/flashing-tools.scm
@@ -2,7 +2,7 @@
 ;;; Copyright © 2014 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014 Manolis Fragkiskos Ragkousis <manolis837@gmail.com>
 ;;; Copyright © 2016 Hartmut Goebel <h.goebel@crazy-compilers.com>
-;;; Copyright © 2016, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016, 2018, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017 Jonathan Brielmaier <jonathan.brielmaier@web.de>
 ;;; Copyright © 2017 Julien Lepiller <julien@lepiller.eu>
@@ -83,9 +83,7 @@
              (substitute* "dmi.c"
                (("\"dmidecode\"")
                 (format #f "~S"
-                        (string-append (assoc-ref inputs "dmidecode")
-                                       "/sbin/dmidecode"))))
-             #t)))))
+                        (search-input-file inputs "/sbin/dmidecode")))))))))
     (home-page "https://flashrom.org/")
     (synopsis "Identify, read, write, erase, and verify ROM/flash chips")
     (description
diff --git a/gnu/packages/fontutils.scm b/gnu/packages/fontutils.scm
index 9c7393b963..8e0980dd95 100644
--- a/gnu/packages/fontutils.scm
+++ b/gnu/packages/fontutils.scm
@@ -8,10 +8,13 @@
 ;;; Copyright © 2017 Nikita <nikita@n0.is>
 ;;; Copyright © 2017, 2018, 2020, 2021 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
-;;; Copyright © 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2019, 2020 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2020 Roel Janssen <roel@gnu.org>
+;;; Copyright © 2020 Nicolas Goaziou <mail@nicolasgoaziou.fr>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2020, 2021 Nicolas Goaziou <mail@nicolasgoaziou.fr>
+;;; Copyright © 2021 Sarah Morgensen <iskarian@mgsn.dev>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -36,6 +39,7 @@
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages datastructures)
+  #:use-module (gnu packages docbook)
   #:use-module (gnu packages flex)
   #:use-module (gnu packages fonts)
   #:use-module (gnu packages freedesktop)
@@ -59,6 +63,7 @@
   #:use-module (gnu packages xdisorg)
   #:use-module (gnu packages xml)
   #:use-module (gnu packages xorg)
+  #:use-module (gnu packages tex)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
   #:use-module (guix download)
@@ -317,55 +322,67 @@ Font Format (WOFF).")
     (license license:expat)))
 
 (define-public fontconfig
-  (package
-   (name "fontconfig")
-   (version "2.13.1")
-   (source (origin
+  (hidden-package
+   (package
+     (name "fontconfig-minimal")
+     (version "2.13.94")
+     (source (origin
             (method url-fetch)
             (uri (string-append
-                   "https://www.freedesktop.org/software/fontconfig/release/fontconfig-"
-                   version ".tar.bz2"))
-            (patches (search-patches "fontconfig-hurd-path-max.patch"))
-            (sha256 (base32
-                     "0hb700a68kk0ip51wdlnjjc682kvlrmb6q920mzajykdk0mdsmgn"))))
-   (build-system gnu-build-system)
-   ;; In Requires or Requires.private of fontconfig.pc.
-   (propagated-inputs `(("expat" ,expat)
-                        ("freetype" ,freetype)
-                        ("libuuid" ,util-linux "lib")))
-   (inputs
-    ;; We use to use 'gs-fonts' but they are not recognized by newer versions
-    ;; of Pango, causing many applications to fail to find fonts otherwise.
-    `(("font-dejavu" ,font-dejavu)))
-   (native-inputs
-    `(("gperf" ,gperf)
-      ("pkg-config" ,pkg-config)))
-   (arguments
-    `(#:configure-flags
-      (list "--with-cache-dir=/var/cache/fontconfig"
-            ;; register the default fonts
-            (string-append "--with-default-fonts="
-                           (assoc-ref %build-inputs "font-dejavu")
-                           "/share/fonts")
-
-            ;; Register fonts from user and system profiles.
-            (string-append "--with-add-fonts="
-                           "~/.guix-profile/share/fonts,"
-                           "/run/current-system/profile/share/fonts")
-
-            ;; python is not actually needed
-            "PYTHON=false")
-      #:phases
-      (modify-phases %standard-phases
-        (replace 'install
-                 (lambda _
-                   ;; Don't try to create /var/cache/fontconfig.
-                   (invoke "make" "install"
-                           "fc_cachedir=$(TMPDIR)"
-                           "RUN_FC_CACHE_TEST=false"))))))
-   (synopsis "Library for configuring and customizing font access")
-   (description
-    "Fontconfig can discover new fonts when installed automatically;
+                  "https://www.freedesktop.org/software/"
+                  "fontconfig/release/fontconfig-" version ".tar.xz"))
+            (sha256
+             (base32
+              "0g004r0bkkqz00mpm3svnnxn7d83158q0yb9ggxryizxfg5m5w55"))
+             (patches (search-patches "fontconfig-cache-ignore-mtime.patch"))))
+     (build-system gnu-build-system)
+     ;; In Requires or Requires.private of fontconfig.pc.
+     (propagated-inputs `(("expat" ,expat)
+                          ("freetype" ,freetype)
+                          ("libuuid" ,util-linux "lib")))
+     (inputs
+      ;; We use to use 'font-ghostscript' but they are not recognized by newer
+      ;; versions of Pango, causing many applications to fail to find fonts
+      ;; otherwise.
+      `(("font-dejavu" ,font-dejavu)))
+     (native-inputs
+      `(("gperf" ,gperf)
+        ("pkg-config" ,pkg-config)
+        ("python" ,python-minimal)))    ;to avoid a cycle through tk
+     (arguments
+      `(#:configure-flags
+        (list "--disable-docs"
+              "--with-cache-dir=/var/cache/fontconfig"
+              ;; register the default fonts
+              (string-append "--with-default-fonts="
+                             (assoc-ref %build-inputs "font-dejavu")
+                             "/share/fonts")
+
+              ;; Register fonts from user and system profiles.
+              (string-append "--with-add-fonts="
+                             "~/.guix-profile/share/fonts,"
+                             "/run/current-system/profile/share/fonts"))
+        #:phases
+        (modify-phases %standard-phases
+          (add-before 'check 'skip-problematic-tests
+            (lambda _
+              ;; SOURCE_DATE_EPOCH doesn't make sense when ignoring mtime
+              (unsetenv "SOURCE_DATE_EPOCH")
+
+              (substitute* "test/run-test.sh"
+                ;; The crbug1004254 test attempts to fetch fonts from the
+                ;; network.
+                (("\\[ -x \"\\$BUILDTESTDIR\"/test-crbug1004254 \\]")
+                 "false"))))
+          (replace 'install
+            (lambda _
+              ;; Don't try to create /var/cache/fontconfig.
+              (invoke "make" "install"
+                      "fc_cachedir=$(TMPDIR)"
+                      "RUN_FC_CACHE_TEST=false"))))))
+     (synopsis "Library for configuring and customizing font access")
+     (description
+      "Fontconfig can discover new fonts when installed automatically;
 perform font name substitution, so that appropriate alternative fonts can
 be selected if fonts are missing;
 identify the set of fonts required to completely cover a set of languages;
@@ -373,10 +390,50 @@ have GUI configuration tools built as it uses an XML-based configuration file;
 efficiently and quickly find needed fonts among the set of installed fonts;
 be used in concert with the X Render Extension and FreeType to implement
 high quality, anti-aliased and subpixel rendered text on a display.")
-   ; The exact license is more X11-style than BSD-style.
-   (license (license:non-copyleft "file://COPYING"
-                       "See COPYING in the distribution."))
-   (home-page "https://www.freedesktop.org/wiki/Software/fontconfig")))
+                                        ; The exact license is more X11-style than BSD-style.
+     (license (license:non-copyleft "file://COPYING"
+                                    "See COPYING in the distribution."))
+     (home-page "https://www.freedesktop.org/wiki/Software/fontconfig"))))
+
+;;; The documentation of fontconfig is built in a separate package, as it
+;;; causes a dramatic increase in the size of the closure of fontconfig.  This
+;;; is intentionally named 'fontconfig', as it's intended as the user-facing
+;;; fontconfig package.
+(define-public fontconfig-with-documentation
+  (package
+    (inherit fontconfig)
+    (name "fontconfig")
+    (outputs (cons "doc" (package-outputs fontconfig)))
+    (arguments
+     (substitute-keyword-arguments (package-arguments fontconfig)
+       ((#:configure-flags configure-flags)
+        `(delete "--disable-docs" ,configure-flags))
+       ((#:phases phases '%standard-phases)
+        `(modify-phases ,phases
+           (add-after 'unpack 'no-pdf-doc
+             (lambda _
+               ;; Don't build documentation as PDF.
+               (substitute* "doc/Makefile.in"
+                 (("^PDF_FILES = .*")
+                  "PDF_FILES =\n"))))
+           (add-after 'install 'move-man-sections
+             (lambda* (#:key outputs #:allow-other-keys)
+               ;; Move share/man/man{3,5} to the "doc" output.  Leave "man1" in
+               ;; "out" for convenience.
+               (let ((out (assoc-ref outputs "out"))
+                     (doc (assoc-ref outputs "doc")))
+                 (for-each (lambda (section)
+                             (let ((source (string-append out "/share/man/"
+                                                          section))
+                                   (target (string-append doc "/share/man/"
+                                                          section)))
+                               (copy-recursively source target)
+                               (delete-file-recursively source)))
+                           '("man3" "man5")))))))))
+    (native-inputs
+     (append (package-native-inputs fontconfig)
+             `(("docbook-utils" ,docbook-utils))))
+    (properties (alist-delete 'hidden? (package-properties fontconfig)))))
 
 (define-public t1lib
   (package
@@ -421,14 +478,14 @@ X11-system or any other graphical user interface.")
 (define-public teckit
   (package
     (name "teckit")
-    (version "2.5.9")                   ;signed by key 0xC9183BEA0288CDEE
+    (version "2.5.10")                  ; signed by key 0xC9183BEA0288CDEE
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://github.com/silnrsi/teckit/releases/"
                            "download/v" version "/teckit-" version ".tar.gz"))
        (sha256
-        (base32 "0gbxyip4wdibirdg2pvzayzyy927vxyd6dfyfiflx8zg88qzn8v8"))))
+        (base32 "12qnf8nhxyr4d5pc01s3vc6h726506957an4vvmmfz633cqi5796"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags '("--disable-static")))
@@ -472,17 +529,6 @@ applications should be.")
         (base32
          "01jzhwnj1c3d68dmw15jdxly0hwkmd8ja4kw755rbkykn1ly2qyx"))))
    (build-system cmake-build-system)
-   (arguments
-    `(#:phases (modify-phases %standard-phases
-                 (add-after 'unpack 'adjust-test-PYTHONPATH
-                   (lambda _
-                     ;; Tell the build system not to override PYTHONPATH
-                     ;; while running the Python tests.
-                     (substitute* "Graphite.cmake"
-                       (("ENVIRONMENT PYTHONPATH=")
-                        (string-append "ENVIRONMENT PYTHONPATH="
-                                       (getenv "PYTHONPATH") ":")))
-                     #t)))))
    (native-inputs
     `(("python" ,python)
       ("python-fonttools" ,python-fonttools)))
@@ -601,14 +647,14 @@ definitions.")
 (define-public fontforge
   (package
    (name "fontforge")
-   (version "20200314")
+   (version "20201107")
    (source (origin
             (method url-fetch)
             (uri (string-append
                   "https://github.com/fontforge/fontforge/releases/download/"
                   version "/fontforge-" version ".tar.xz"))
             (sha256
-             (base32 "0qf88wd6riycq56d24brybyc93ns74s0nyyavm43zp2kfcihn6fd"))))
+             (base32 "0y3c8x1i6yf6ak9m5dhr1nldgfmg7zhnwdfd57ffs698c27vmg38"))))
    (build-system cmake-build-system)
    (native-inputs
     `(("pkg-config" ,pkg-config)))
@@ -651,7 +697,8 @@ definitions.")
         (add-after 'install 'set-library-path
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out"))
-                  (potrace (string-append (assoc-ref inputs "potrace") "/bin")))
+                  (potrace (dirname
+                            (search-input-file inputs "bin/potrace"))))
               (wrap-program (string-append out "/bin/fontforge")
                 ;; Fontforge dynamically opens libraries.
                 `("LD_LIBRARY_PATH" ":" prefix
@@ -810,8 +857,6 @@ maintain the Noto Fonts project.")
                (base32
                 "00rwh5qfayihrq0wjx8pxqw5ah6g5ym6raxvdbqb6g6rk7m2j423"))))
     (build-system meson-build-system)
-    (arguments
-     `(#:meson ,meson-0.55))
     (native-inputs
      `(("check" ,check)
        ("gcc" ,gcc-10)    ;TODO: Remove when the default compiler is > GCC 7.
@@ -869,7 +914,7 @@ generated list of fallback fonts are checked.")
       ("glib" ,glib "bin")
       ("gobject-introspection" ,gobject-introspection)
       ("pkg-config" ,pkg-config)
-      ("vala" ,vala-0.50)
+      ("vala" ,vala)
       ("yelp-tools" ,yelp-tools)))
    (inputs
     `(("fonconfig" ,fontconfig)
diff --git a/gnu/packages/freedesktop.scm b/gnu/packages/freedesktop.scm
index ce7ae8b7d5..4342a59b2a 100644
--- a/gnu/packages/freedesktop.scm
+++ b/gnu/packages/freedesktop.scm
@@ -649,7 +649,7 @@ the freedesktop.org XDG Base Directory specification.")
              ;; logind system so that it can flicker the monitor, etc.
              ;; Just skip it until a more narrow selection can be made.
              (substitute* "src/libelogind/sd-login/test-login.c"
-               (("r = sd_pid_get_slice.*")
+               (("test_login\\(\\);")
                 "return 77;"))
              #t))
          (add-after 'unpack 'change-pid-file-path
@@ -953,38 +953,63 @@ Python.")
 (define-public wayland
   (package
     (name "wayland")
-    (version "1.18.0")
+    (version "1.19.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://wayland.freedesktop.org/releases/"
                                   name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0k995rn96xkplrapz5k648j651wc43kq817xk1x8280h16gsfxa6"))))
-    (build-system gnu-build-system)
+                "05bd2vphyx8qwa1mhsj1zdaiv4m4v94wrlssrn0lad8d601dkk5s"))))
+    (build-system meson-build-system)
+    (outputs '("out" "doc"))
     (arguments
-     `(#:parallel-tests? #f))
+     `(#:parallel-tests? #f
+        #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-docbook-xml
+           (lambda* (#:key inputs #:allow-other-keys)
+             (with-directory-excursion "doc"
+               (substitute* (find-files "." "\\.xml$")
+                 (("http://www.oasis-open.org/docbook/xml/4\\.5/")
+                  (string-append (assoc-ref inputs "docbook-xml")
+                                 "/xml/dtd/docbook/"))
+                 (("http://www.oasis-open.org/docbook/xml/4\\.2/")
+                  (string-append (assoc-ref inputs "docbook-xml-4.2")
+                                 "/xml/dtd/docbook/"))))
+             #t))
+         (add-after 'install 'move-doc
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc (assoc-ref outputs "doc")))
+               (mkdir-p (string-append doc "/share"))
+               (rename-file
+                (string-append out "/share/doc")
+                (string-append doc "/share/doc"))
+               #t))))))
     (native-inputs
-     `(("doxygen" ,doxygen)
-       ("graphviz" ,graphviz)
+     `(("docbook-xml-4.2" ,docbook-xml-4.2)
+       ("docbook-xml" ,docbook-xml)
+       ("docbook-xsl" ,docbook-xsl)
+       ("dot" ,graphviz)
+       ("doxygen" ,doxygen)
        ("pkg-config" ,pkg-config)
        ("xmlto" ,xmlto)
        ("xsltproc" ,libxslt)))
     (inputs
-     `(("docbook-xml" ,docbook-xml)
-       ("docbook-xsl" ,docbook-xsl)
-       ("expat" ,expat)
-       ("libffi" ,libffi)
-       ("libxml2" ,libxml2))) ; for XML_CATALOG_FILES
+     `(("expat" ,expat)
+       ("libxml2" ,libxml2)))           ; for XML_CATALOG_FILES
+    (propagated-inputs
+     `(("libffi" ,libffi)))
     (home-page "https://wayland.freedesktop.org/")
-    (synopsis "Display server protocol")
-    (description
-     "Wayland is a protocol for a compositor to talk to its clients as well as
-a C library implementation of that protocol.  The compositor can be a standalone
-display server running on Linux kernel modesetting and evdev input devices, an X
-application, or a wayland client itself.  The clients can be traditional
-applications, X servers (rootless or fullscreen) or other display servers.")
-    (license license:x11)))
+    (synopsis "Core Wayland window system code and protocol")
+    (description "Wayland is a project to define a protocol for a compositor to
+talk to its clients as well as a library implementation of the protocol.  The
+compositor can be a standalone display server running on Linux kernel
+modesetting and evdev input devices, an X application, or a wayland client
+itself.  The clients can be traditional applications, X servers (rootless or
+fullscreen) or other display servers.")
+    (license license:expat)))
 
 (define-public wayland-protocols
   (package
@@ -1004,7 +1029,10 @@ applications, X servers (rootless or fullscreen) or other display servers.")
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (synopsis "Wayland protocols")
-    (description "This package contains XML definitions of the Wayland protocols.")
+    (description "Wayland-Protocols contains Wayland protocols that add
+functionality not available in the Wayland core protocol.  Such protocols either
+add completely new functionality, or extend the functionality of some other
+protocol either in Wayland core, or some other protocol in wayland-protocols.")
     (home-page "https://wayland.freedesktop.org")
     (license license:expat)))
 
@@ -1125,8 +1153,7 @@ applications, X servers (rootless or fullscreen) or other display servers.")
          (add-before 'check 'start-xorg-server
            (lambda* (#:key inputs #:allow-other-keys)
              ;; The test suite requires a running X server.
-             (system (string-append (assoc-ref inputs "xorg-server")
-                                    "/bin/Xvfb :1 &"))
+             (system "Xvfb :1 &")
              (setenv "DISPLAY" ":1")
              #t)))))
     (home-page "https://wayland.freedesktop.org")
diff --git a/gnu/packages/game-development.scm b/gnu/packages/game-development.scm
index e1593c0f82..e7be20d580 100644
--- a/gnu/packages/game-development.scm
+++ b/gnu/packages/game-development.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014 Tomáš Čech <sleep_walker@suse.cz>
 ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
-;;; Copyright © 2015, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2018, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015, 2018 Alex Kost <alezost@gmail.com>
 ;;; Copyright © 2015, 2016, 2017 David Thompson <davet@gnu.org>
 ;;; Copyright © 2016, 2017, 2018, 2019, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
@@ -1199,15 +1199,12 @@ developed mainly for Ren'py.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "module/setup.py"
                (("/usr/include/fribidi")
-                (string-append (assoc-ref inputs "fribidi")
-                               "/include/fribidi")))
-             #t))
+                (search-input-directory inputs "include/fribidi")))))
          (add-after 'set-paths 'set-build-vars
            (lambda* (#:key inputs native-inputs #:allow-other-keys)
              (setenv "RENPY_CYTHON"
-                     (string-append (assoc-ref (or native-inputs inputs)
-                                               "python2-cython")
-                                    "/bin/cython"))
+                     (search-input-file (or native-inputs inputs)
+                                        "/bin/cython"))
              (setenv "RENPY_DEPS_INSTALL" (string-join (map cdr inputs) ":"))
              #t))
          (replace 'build
@@ -1251,8 +1248,7 @@ developed mainly for Ren'py.")
      `(("python2-future" ,python2-future)
        ("python2-pygame" ,python2-pygame-sdl2)))
     (native-inputs
-     `(("gcc" ,gcc-8) ; for const variables as initializer elements
-       ("python2-cython" ,python2-cython)))
+     `(("python2-cython" ,python2-cython)))
     (home-page "https://www.renpy.org/")
     (synopsis "Ren'py python module")
     (description "This package contains the shared libraries and Python modules
@@ -1451,7 +1447,7 @@ if __name__ == \"__main__\":
                                          (assoc-ref inputs "python"))
                                         "/site-packages")))
                (wrap-program (string-append out "/bin/renpy")
-                 `("PYTHONPATH" =
+                 `("GUIX_PYTHONPATH" =
                    (,@(delete-duplicates
                        (map
                         (lambda (store-path)
@@ -2600,10 +2596,9 @@ support.")
            (add-before 'build 'fix-env
              (lambda* (#:key inputs #:allow-other-keys)
                (setenv "CPATH"
-                       (string-append (assoc-ref inputs "sdl2-union")
-                                      "/include/SDL2:"
-                                      (or (getenv "CPATH") "")))
-               #t))
+                       (string-append
+                        (search-input-directory inputs "include/SDL2")
+                        ":" (or (getenv "CPATH") "")))))
            (add-after 'install 'really-install
              (lambda* (#:key outputs #:allow-other-keys)
                (let* ((out (assoc-ref outputs "out"))
diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index 8c6b5523f1..2c8b3c083f 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -5,7 +5,7 @@
 ;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Eric Bavier <bavier@posteo.net>
 ;;; Copyright © 2014 Cyrill Schenkel <cyrill.schenkel@gmail.com>
 ;;; Copyright © 2014 Sylvain Beucler <beuc@beuc.net>
-;;; Copyright © 2014, 2015, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2015, 2018, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014, 2015, 2016 Sou Bunnbu <iyzsong@gmail.com>
 ;;; Copyright © 2014, 2015, 2019 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015, 2016 Andreas Enge <andreas@enge.fr>
@@ -678,8 +678,7 @@ possible, while battling many vicious aliens.")
                     (bin (string-append out "/bin"))
                     (doc (string-append out "/share/doc/bsd-games-" ,version))
                     (man (string-append out "/share/man"))
-                    (word-list (string-append (assoc-ref inputs "miscfiles")
-                                              "/share/web2"))
+                    (word-list (search-input-file inputs "/share/web2"))
                     (static-data (string-append out "/share/games/bsd-games"))
                     ;; Not a "./" because of substitute* in 'patch-install
                     ;; below.  The .// allow us not to mess with the games'
@@ -1159,10 +1158,9 @@ characters and lines resulting in a rainbow effect.")
              ;; Set correct environment for SDL.
              (lambda* (#:key inputs #:allow-other-keys)
                (setenv "CPATH"
-                       (string-append (assoc-ref inputs "sdl")
-                                      "/include/SDL:"
-                                      (or (getenv "CPATH") "")))
-               #t))
+                       (string-append
+                        (search-input-directory inputs "include/SDL")
+                        ":" (or (getenv "CPATH") "")))))
            (add-before 'build 'fix-settings-directory
              ;; Hide foobillardplus settings directory in $HOME.
              (lambda _
@@ -1556,8 +1554,7 @@ shadow mimic them to reach blocks you couldn't reach alone.")
              ;; Look for xdg-open in the store.
              (substitute* "src/core/web.c"
                (("/usr(/bin/xdg-open)" _ bin)
-                (string-append (assoc-ref inputs "xdg-utils") bin)))
-             #t))
+                (search-input-file inputs bin)))))
          (add-after 'unpack 'unbundle-fonts
            (lambda* (#:key inputs #:allow-other-keys)
              ;; Replace bundled Roboto fonts with links to the store.
@@ -1863,10 +1860,9 @@ Chess).  It is similar to standard chess but this variant is far more complicate
          (add-after 'set-paths 'set-sdl-paths
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "CPATH"
-                     (string-append (assoc-ref inputs "sdl-union")
-                                    "/include/SDL:"
-                                    (or (getenv "CPATH") "")))
-             #t)))))
+                     (string-append
+                      (search-input-directory inputs "include/SDL")
+                      ":" (or (getenv "CPATH") ""))))))))
     (inputs
      `(("sdl-union" ,(sdl-union (list sdl sdl-mixer)))))
     (home-page "http://lgames.sourceforge.net/LTris/")
@@ -2077,10 +2073,9 @@ Every puzzle has a complete solution, although there may be more than one.")
         (add-after 'set-paths 'set-sdl'paths
           (lambda* (#:key inputs #:allow-other-keys)
             (setenv "CPATH"
-                    (string-append (assoc-ref inputs "sdl-union")
-                                   "/include/SDL:"
-                                   (or (getenv "CPATH") "")))
-            #t)))))
+                    (string-append
+                     (search-input-file inputs "/include/SDL")
+                     ":" (or (getenv "CPATH") ""))))))))
    (inputs
     `(("fluidsynth" ,fluidsynth)
       ("glu" ,glu)
@@ -2241,9 +2236,9 @@ utilizing the art assets from the @code{SuperTux} project.")
                  (lambda (p)
                    (format p "\
 #!~a
-export PYTHONPATH=~a/LIB:~a
+export GUIX_PYTHONPATH=~a/LIB:~a
 exec -a \"~a\" ~a \"$@\"\n"
-                           (which "bash") data (getenv "PYTHONPATH")
+                           (which "bash") data (getenv "GUIX_PYTHONPATH")
                            (which "python3")
                            (string-append lib "/main.py"))))
                (chmod roguebox-adventures #o555))
@@ -2317,9 +2312,9 @@ can be explored and changed freely.")
                    (lambda (p)
                      (format p
                              "#!~a~@
-                              export PYTHONPATH=~a:~a~@
+                              export GUIX_PYTHONPATH=~a:~a~@
                               exec -a \"~a\" ~a \"$@\"~%"
-                             (which "bash") data (getenv "PYTHONPATH")
+                             (which "bash") data (getenv "GUIX_PYTHONPATH")
                              (which "python3")
                              (string-append data "/run_game.py"))))
                  (chmod executable #o555))
@@ -2350,8 +2345,8 @@ can be explored and changed freely.")
            (lambda* (#:key outputs inputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
                     (data (string-append out "/share/seahorse-adventures"))
-                    (vera (string-append (assoc-ref inputs "font-bitstream-vera")
-                                         "/share/fonts/truetype/Vera.ttf")))
+                    (vera (search-input-file
+                           inputs "/share/fonts/truetype/Vera.ttf")))
                (let ((themes-dir (string-append data "/data/themes/")))
                  (for-each
                   (lambda (theme)
@@ -2920,9 +2915,9 @@ properly.")
                   (add-after 'set-paths 'set-sdl-paths
                     (lambda* (#:key inputs #:allow-other-keys)
                       (setenv "CPATH"
-                              (string-append (assoc-ref inputs "sdl-union")
-                                             "/include/SDL:"
-                                             (or (getenv "CPATH") "")))))
+                              (string-append
+                               (search-input-file inputs "include/SDL")
+                               ":" (or (getenv "CPATH") "")))))
                   (add-after 'patch-source-shebangs 'patch-makefile
                     (lambda* (#:key outputs #:allow-other-keys)
                       ;; Replace /usr with package output directory.
@@ -3356,7 +3351,8 @@ exec ~a/bin/freedink -refdir ~a/share/dink\n"
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "xboard.conf"
                (("aplay -q")
-                (string-append (assoc-ref inputs "alsa-utils") "/bin/aplay -q")))))
+                (string-append (search-input-file inputs "/bin/aplay")
+                               " -q")))))
          ;; Fixes https://issues.guix.gnu.org/45236.
          (add-after 'unpack 'patch-default-engine
            (lambda* (#:key inputs #:allow-other-keys)
@@ -3813,9 +3809,12 @@ Widgets, and allows users to create more.")
     (build-system cmake-build-system)
     (arguments
      `(#:tests? #f            ; TODO The test running fails to run some tests.
-       #:modules ((srfi srfi-1)
-                  (guix build cmake-build-system)
-                  (guix build utils))
+       #:imported-modules ,(cons '(guix build python-build-system)
+                                 %cmake-build-system-modules)
+       #:modules ((guix build cmake-build-system)
+                  ((guix build python-build-system) #:select (guix-pythonpath))
+                  (guix build utils)
+                  (srfi srfi-1))
        #:configure-flags
        (list
         (string-append "-DOPENALSOFT_INCLUDE_DIR="
@@ -3842,30 +3841,15 @@ Widgets, and allows users to create more.")
          (delete 'check)
          (add-after 'install 'check
            (lambda* (#:key inputs outputs tests? #:allow-other-keys)
-             (define python-version
-               (let* ((version     (last (string-split
-                                          (assoc-ref inputs "python")
-                                          #\-)))
-                      (components  (string-split version #\.))
-                      (major+minor (take components 2)))
-                 (string-join major+minor ".")))
-
              (when tests?
-               ;; Set PYTHONPATH so that python finds the installed modules.
-               (setenv "PYTHONPATH"
-                       (string-append (getenv "PYTHONPATH") ":"
-                                      (assoc-ref outputs "out")
-                                      "/lib/python"
-                                      python-version
-                                      "/site-packages"))
+               (add-installed-pythonpath inputs outputs)
                ;; The tests require an X server.
                (system "Xvfb :1 &")
                (setenv "DISPLAY" ":1")
                (setenv "XDG_RUNTIME_DIR" "/tmp")
                ;; Run tests
                (chdir ,(string-append "../" name "-" version))
-               (invoke "python3" "run_tests.py" "-a"))
-             #t)))))
+               (invoke "python3" "run_tests.py" "-a")))))))
     (inputs
      `(("sdl2" ,sdl2)
        ("sdl2-image" ,sdl2-image)
@@ -4787,8 +4771,8 @@ players.")
           (replace 'configure
           (lambda* (#:key outputs inputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out"))
-                  (dejavu (string-append (assoc-ref inputs "font-dejavu")
-                                         "/share/fonts/truetype/DejaVuSans.ttf")))
+                  (dejavu (search-input-file
+                           inputs "/share/fonts/truetype/DejaVuSans.ttf")))
               (substitute* "Makefile"
                 (("PREFIX=/usr/local") (string-append "PREFIX=" out)))
               ;; The patch above registers a free font for use by the binary,
@@ -4880,10 +4864,9 @@ http://lavachat.symlynx.com/unix/")
            (add-after 'set-paths 'set-sdl-paths
              (lambda* (#:key inputs #:allow-other-keys)
                (setenv "CPATH"
-                       (string-append (assoc-ref inputs "sdl-union")
-                                      "/include/SDL2:"
-                                      (or (getenv "CPATH") "")))
-               #t))
+                       (string-append
+                        (search-input-file inputs "/include/SDL2")
+                        ":" (or (getenv "CPATH") "")))))
            (add-after 'install 'copy-data
              (lambda* (#:key outputs #:allow-other-keys)
                (let ((out (assoc-ref outputs "out")))
@@ -5864,7 +5847,7 @@ throwing people around in pseudo-randomly generated buildings.")
              (let* ((data (assoc-ref inputs "hyperrogue-data"))
                     (out (assoc-ref outputs "out"))
                     (sounds (string-append out "/share/hyperrogue/sounds"))
-                    (unzip (string-append (assoc-ref inputs "unzip") "/bin/unzip")))
+                    (unzip (search-input-file inputs "/bin/unzip")))
                ;; Extract media license information into sounds directory.
                (invoke unzip "-j" data
                        (string-append
@@ -6230,11 +6213,10 @@ over 100 user-created campaigns.")
          (replace 'configure
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (setenv "CPLUS_INCLUDE_PATH"
-                     (string-append (assoc-ref inputs "sdl-union")
-                                    "/include/SDL:"
-                                    (assoc-ref inputs "python")
-                                    "/include/python2.7:"
-                                    (or (getenv "CPLUS_INCLUDE_PATH") "")))
+                     (string-append
+                      (search-input-directory inputs "include/SDL") ":"
+                      (search-input-directory inputs "include/python2.7")
+                      ":" (or (getenv "CPLUS_INCLUDE_PATH") "")))
              (substitute* "src/main/main.cpp"
                (("#include <SDL.h>" line)
                 (string-append line "
@@ -6965,10 +6947,9 @@ Crowther & Woods, its original authors, in 1995.  It has been known as
                   (add-after 'set-paths 'set-sdl-paths
                     (lambda* (#:key inputs #:allow-other-keys)
                       (setenv "CPATH"
-                              (string-append (assoc-ref inputs "sdl-union")
-                                             "/include/SDL2:"
-                                             (or (getenv "CPATH") "")))
-                      #t))
+                              (string-append
+                               (search-input-directory inputs "/include/SDL2")
+                               ":" (or (getenv "CPATH") "")))))
                   (delete 'check)
                   ;; premake doesn't provide install target
                   (replace 'install
@@ -7181,7 +7162,7 @@ some graphical niceities, and numerous bug-fixes and other improvements.")
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (inputs
-     `(("curl" ,curl-minimal)
+     `(("curl" ,curl)
        ("libvorbis" ,libvorbis)
        ("mesa" ,mesa)
        ("openal" ,openal)
@@ -8603,10 +8584,9 @@ download and unpack them separately.")
          (add-after 'set-paths 'set-sdl-paths
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "CPATH"
-                     (string-append (assoc-ref inputs "sdl")
-                                    "/include/SDL:"
-                                    (or (getenv "CPATH") "")))
-             #t))
+                     (string-append
+                      (search-input-file inputs "/include/SDL")
+                      ":" (or (getenv "CPATH") "")))))
          (add-after 'unpack 'fix-compilation-errors
            (lambda _
              (substitute* "mrt/base_file.h"
@@ -8753,10 +8733,9 @@ affected by the gravity of the planets.")
          (add-after 'set-paths 'set-sdl-paths
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "CPATH"
-                     (string-append (assoc-ref inputs "sdl")
-                                    "/include/SDL:"
-                                    (or (getenv "CPATH") "")))
-             #t)))))
+                     (string-append
+                      (search-input-file inputs "/include/SDL")
+                      ":" (or (getenv "CPATH") ""))))))))
     (inputs
      `(("fontconfig" ,fontconfig)
        ("freeglut" ,freeglut)
@@ -8872,10 +8851,9 @@ where the player draws runes in real time to effect the desired spell.")
                    (add-before 'build 'fix-env
                      (lambda* (#:key inputs #:allow-other-keys)
                        (setenv "CPATH"
-                               (string-append (assoc-ref inputs "sdl2-union")
-                                              "/include/SDL2:"
-                                              (or (getenv "CPATH") "")))
-                       #t)))))
+                               (string-append
+                                (search-input-file inputs "/include/SDL2")
+                                ":" (or (getenv "CPATH") ""))))))))
     (inputs
      `(("sdl2-union" ,(sdl-union (list sdl2 sdl2-image sdl2-mixer sdl2-ttf)))
        ("zlib" ,zlib)))
@@ -9066,10 +9044,8 @@ action RPGs.")
            ;; parameters.
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
-                    (bash (string-append (assoc-ref inputs "bash")
-                                         "/bin/bash"))
-                    (flare (string-append (assoc-ref inputs "flare-engine")
-                                          "/bin/flare"))
+                    (bash (search-input-file inputs "/bin/bash"))
+                    (flare (search-input-file inputs "/bin/flare"))
                     (script (string-append out "/bin/flare-game")))
                (mkdir-p (dirname script))
                (call-with-output-file script
@@ -10499,7 +10475,7 @@ This package is part of the KDE games module.")
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out")))
                (wrap-program (string-append out "/bin/kajongg")
-                 `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH"))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH"))))
                #t))))))
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -11940,8 +11916,7 @@ and chess engines.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "chessx.pro"
                (("\\$\\$\\[QT_INSTALL_BINS\\]/lrelease")
-                (string-append (assoc-ref inputs "qttools") "/bin/lrelease")))
-             #t))
+                (search-input-file inputs "/bin/lrelease")))))
          (add-after 'fix-paths 'make-qt-deterministic
            (lambda _
              (setenv "QT_RCC_SOURCE_DATE_OVERRIDE" "1")
@@ -12277,8 +12252,7 @@ game.")  ;thanks to Debian for description
                (("/opt/gsasl")
                 (assoc-ref inputs "gsasl"))
                (("\\$\\$\\{PREFIX\\}/include/libircclient")
-                (string-append (assoc-ref inputs "libircclient")
-                               "/include/libircclient"))
+                (search-input-directory inputs "/include/libircclient"))
                (("LIB_DIRS =")
                 (string-append "LIB_DIRS = "
                                (assoc-ref inputs "boost") "/lib")))
diff --git a/gnu/packages/gawk.scm b/gnu/packages/gawk.scm
index d8494e9c1c..6dab274be1 100644
--- a/gnu/packages/gawk.scm
+++ b/gnu/packages/gawk.scm
@@ -30,13 +30,13 @@
 (define-public gawk
   (package
    (name "gawk")
-   (version "5.0.1")
+   (version "5.1.0")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnu/gawk/gawk-" version
                                 ".tar.xz"))
             (sha256
-             (base32 "15570p7g2x54asvr2fsc56sxzmm08fbk4mzpcs5n92fp9vq8cklf"))))
+             (base32 "1gc2cccqy1x1bf6rhwlmd8q7dz7gnam6nwgl38bxapv6qm5flpyg"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases (modify-phases %standard-phases
@@ -66,6 +66,16 @@
                      (substitute* "test/Makefile"
                        (("\\| more") ""))
 
+                     ;; Silence a warning from bash about not being able
+                     ;; to change to an ISO-8859-1 locale.  The test itself
+                     ;; works fine, but newer versions of bash give a
+                     ;; locale warning which mangles the test output.
+                     (substitute* "test/localenl.sh"
+                       (("for LC_ALL in")
+                        "for LC in")
+                       (("export LC_ALL\n")
+                        "export LC_ALL=$LC 2>/dev/null\n"))
+
                      ;; Adjust the shebang in that file since it is then diff'd
                      ;; against the actual test output.
                      (substitute* "test/watchpoint1.ok"
diff --git a/gnu/packages/gcc.scm b/gnu/packages/gcc.scm
index 2fe30b1321..79994cc191 100644
--- a/gnu/packages/gcc.scm
+++ b/gnu/packages/gcc.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014, 2015, 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014, 2015, 2016, 2017, 2019 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015 Andreas Enge <andreas@enge.fr>
@@ -47,6 +47,7 @@
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system trivial)
+  #:use-module (guix gexp)
   #:use-module (guix utils)
   #:use-module (srfi srfi-1)
   #:use-module (ice-9 regex))
@@ -80,6 +81,11 @@ where the OS part is overloaded to denote a specific ABI---into GCC
          ;; Cilk has been removed from GCC 8 anyway.
          '("--disable-libcilkrts"))
 
+        ;; glibc needs the 128-bit long double type on these architectures.
+        ((or (string-prefix? "powerpc64le-" target)
+             (string-prefix? "powerpc-" target))
+         '("--with-long-double-128"))
+
         (else
          ;; TODO: Add `arm.*-gnueabi', etc.
          '())))
@@ -275,13 +281,10 @@ where the OS part is overloaded to denote a specific ABI---into GCC
 ~a"
                                libc line))))
 
-                  ;; TODO: Make this unconditional in core-updates.
-                  ,@(if (target-powerpc?)
-                      `((when (file-exists? "gcc/config/rs6000")
-                          ;; Force powerpc libdir to be /lib and not /lib64
-                          (substitute* (find-files "gcc/config/rs6000")
-                            (("/lib64") "/lib"))))
-                      `())
+                  (when (file-exists? "gcc/config/rs6000")
+                    ;; Force powerpc libdir to be /lib and not /lib64
+                    (substitute* (find-files "gcc/config/rs6000")
+                      (("/lib64") "/lib")))
 
                   ;; Don't retain a dependency on the build-time sed.
                   (substitute* "fixincludes/fixincl.x"
@@ -330,8 +333,7 @@ where the OS part is overloaded to denote a specific ABI---into GCC
                   ;; but there's nothing useful to look for here.)
                   (substitute* "gcc/config.in"
                     (("PREFIX_INCLUDE_DIR")
-                     "PREFIX_INCLUDE_DIR_isnt_necessary_here"))
-                  #t)))
+                     "PREFIX_INCLUDE_DIR_isnt_necessary_here")))))
 
             (add-after 'configure 'post-configure
               (lambda _
@@ -339,8 +341,7 @@ where the OS part is overloaded to denote a specific ABI---into GCC
                 ;; build-time dependencies---e.g., `--with-ppl=/gnu/store/xxx'.
                 (substitute* "Makefile"
                   (("^TOPLEVEL_CONFIGURE_ARGUMENTS=(.*)$" _ rest)
-                   "TOPLEVEL_CONFIGURE_ARGUMENTS=\n"))
-                #t)))))
+                   "TOPLEVEL_CONFIGURE_ARGUMENTS=\n")))))))
 
        (native-search-paths
         ;; Use the language-specific variables rather than 'CPATH' because they
@@ -388,15 +389,13 @@ Go.  It also includes runtime support libraries for these languages.")
               ;; This is required for building with glibc-2.26.
               ;; https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81712
               (snippet
-               '(begin
-                  (for-each
-                   (lambda (dir)
-                     (substitute* (string-append "libgcc/config/"
-                                                 dir "/linux-unwind.h")
-                       (("struct ucontext") "ucontext_t")))
-                   '("aarch64" "alpha" "bfin" "i386" "m68k"
-                     "pa" "sh" "tilepro" "xtensa"))
-                  #t))))
+               '(for-each
+                 (lambda (dir)
+                   (substitute* (string-append "libgcc/config/"
+                                               dir "/linux-unwind.h")
+                     (("struct ucontext") "ucontext_t")))
+                 '("aarch64" "alpha" "bfin" "i386" "m68k"
+                   "pa" "sh" "tilepro" "xtensa")))))
     (supported-systems %supported-systems)
     (inputs
      `(("isl" ,isl-0.11)
@@ -424,15 +423,13 @@ Go.  It also includes runtime support libraries for these languages.")
               ;; This is required for building with glibc-2.26.
               ;; https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81712
               (snippet
-               '(begin
-                  (for-each
-                   (lambda (dir)
-                     (substitute* (string-append "libgcc/config/"
-                                                 dir "/linux-unwind.h")
-                       (("struct ucontext") "ucontext_t")))
-                   '("aarch64" "alpha" "bfin" "i386" "m68k" "nios2"
-                     "pa" "sh" "tilepro" "xtensa"))
-                  #t))))
+               '(for-each
+                 (lambda (dir)
+                   (substitute* (string-append "libgcc/config/"
+                                               dir "/linux-unwind.h")
+                     (("struct ucontext") "ucontext_t")))
+                 '("aarch64" "alpha" "bfin" "i386" "m68k" "nios2"
+                   "pa" "sh" "tilepro" "xtensa")))))
     ;; Override inherited texinfo-5 with latest version.
     (native-inputs `(("perl" ,perl)   ;for manpages
                      ("texinfo" ,texinfo)))
@@ -460,8 +457,18 @@ Go.  It also includes runtime support libraries for these languages.")
                                           ":"))
                      (format #t
                              "environment variable `CPLUS_INCLUDE_PATH' changed to ~a~%"
-                             (getenv "CPLUS_INCLUDE_PATH"))
-                     #t))))))))))
+                             (getenv "CPLUS_INCLUDE_PATH"))))))))))))
+
+(define gcc-canadian-cross-objdump-snippet
+  ;; Fix 'libcc1/configure' error when cross-compiling GCC.  Without that,
+  ;; 'libcc1/configure' wrongfully determines that '-rdynamic' support is
+  ;; missing because $gcc_cv_objdump is empty:
+  ;;
+  ;;   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67590
+  ;;   http://cgit.openembedded.org/openembedded-core/commit/?id=f6e47aa9b12f9ab61530c40e0343f451699d9077
+  #~(substitute* "libcc1/configure"
+      (("\\$gcc_cv_objdump -T")
+       "$OBJDUMP_FOR_TARGET -T")))
 
 (define-public gcc-5
   ;; Note: GCC >= 5 ships with .info files but 'make install' fails to install
@@ -485,19 +492,7 @@ Go.  It also includes runtime support libraries for these languages.")
                                        "gcc-fix-texi2pod.patch"
                                        "gcc-5-hurd.patch"))
               (modules '((guix build utils)))
-              (snippet
-               ;; Fix 'libcc1/configure' error when cross-compiling GCC.
-               ;; Without that, 'libcc1/configure' wrongfully determines that
-               ;; '-rdynamic' support is missing because $gcc_cv_objdump is
-               ;; empty:
-               ;;
-               ;;   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67590
-               ;;   http://cgit.openembedded.org/openembedded-core/commit/?id=f6e47aa9b12f9ab61530c40e0343f451699d9077
-               '(begin
-                  (substitute* "libcc1/configure"
-                    (("\\$gcc_cv_objdump -T")
-                     "$OBJDUMP_FOR_TARGET -T"))
-                  #t))))
+              (snippet gcc-canadian-cross-objdump-snippet)))
     (inputs
      `(;; GCC5 needs <isl/band.h> which is removed in later versions.
        ("isl" ,isl-0.18)
@@ -565,7 +560,9 @@ It also includes runtime support libraries for these languages.")))
                 "0l7d4m9jx124xsk6xardchgy2k5j5l2b15q322k31f0va4d8826k"))
               (patches (search-patches "gcc-8-strmov-store-file-names.patch"
                                        "gcc-5.0-libvtv-runpath.patch"
-                                       "gcc-8-sort-libtool-find-output.patch"))))))
+                                       "gcc-8-sort-libtool-find-output.patch"))
+              (modules '((guix build utils)))
+              (snippet gcc-canadian-cross-objdump-snippet)))))
 
 (define-public gcc-9
   (package
@@ -580,7 +577,9 @@ It also includes runtime support libraries for these languages.")))
               "13l3p6g2krilaawbapmn9zmmrh3zdwc36mfr3msxfy038hps6pf9"))
             (patches (search-patches "gcc-9-strmov-store-file-names.patch"
                                      "gcc-9-asan-fix-limits-include.patch"
-                                     "gcc-5.0-libvtv-runpath.patch"))))))
+                                     "gcc-5.0-libvtv-runpath.patch"))
+            (modules '((guix build utils)))
+            (snippet gcc-canadian-cross-objdump-snippet)))))
 
 (define-public gcc-10
   (package
@@ -594,7 +593,9 @@ It also includes runtime support libraries for these languages.")))
              (base32
               "0i6378ig6h397zkhd7m4ccwjx5alvzrf2hm27p1pzwjhlv0h9x34"))
             (patches (search-patches "gcc-9-strmov-store-file-names.patch"
-                                     "gcc-5.0-libvtv-runpath.patch"))))))
+                                     "gcc-5.0-libvtv-runpath.patch"))
+            (modules '((guix build utils)))
+            (snippet gcc-canadian-cross-objdump-snippet)))))
 
 (define-public gcc-11
   (package
@@ -608,11 +609,13 @@ It also includes runtime support libraries for these languages.")))
              (base32
               "1pwxrjhsymv90xzh0x42cxfnmhjinf2lnrrf3hj5jq1rm2w6yjjc"))
             (patches (search-patches "gcc-9-strmov-store-file-names.patch"
-                                     "gcc-5.0-libvtv-runpath.patch"))))))
+                                     "gcc-5.0-libvtv-runpath.patch"))
+            (modules '((guix build utils)))
+            (snippet gcc-canadian-cross-objdump-snippet)))))
 
 ;; Note: When changing the default gcc version, update
 ;;       the gcc-toolchain-* definitions.
-(define-public gcc gcc-7)
+(define-public gcc gcc-10)
 
 (define-public (make-libstdc++ gcc)
   "Return a libstdc++ package based on GCC.  The primary use case is when
@@ -623,25 +626,16 @@ using compilers other than GCC."
     (arguments
      `(#:out-of-source? #t
        #:phases
-       ;; TODO: Use the target-powerpc arm for everyone.
-        ,(if (target-powerpc?)
-           `(modify-phases %standard-phases
-              ;; Force rs6000 (i.e., powerpc) libdir to be /lib and not /lib64.
-              (add-before 'chdir 'fix-rs6000-libdir
-                (lambda _
-                  (when (file-exists? "gcc/config/rs6000")
-                    (substitute* (find-files "gcc/config/rs6000")
-                      (("/lib64") "/lib")))
-                  #t))
-              (add-before 'configure 'chdir
-                (lambda _
-                  (chdir "libstdc++-v3")
-                  #t)))
-           `(alist-cons-before 'configure 'chdir
-              (lambda _
-                (chdir "libstdc++-v3")
-                #t)
-              %standard-phases))
+       (modify-phases %standard-phases
+         ;; Force rs6000 (i.e., powerpc) libdir to be /lib and not /lib64.
+         (add-before 'chdir 'fix-rs6000-libdir
+           (lambda _
+             (when (file-exists? "gcc/config/rs6000")
+               (substitute* (find-files "gcc/config/rs6000")
+                 (("/lib64") "/lib")))))
+         (add-before 'configure 'chdir
+           (lambda _
+             (chdir "libstdc++-v3"))))
 
        #:configure-flags `("--disable-libstdcxx-pch"
                            ,(string-append "--with-gxx-include-dir="
@@ -692,16 +686,14 @@ using compilers other than GCC."
        (modify-phases %standard-phases
          (add-before 'configure 'chdir
            (lambda _
-             (chdir "libiberty")
-             #t))
+             (chdir "libiberty")))
          (replace 'install
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out     (assoc-ref outputs "out"))
                     (lib     (string-append out "/lib/"))
                     (include (string-append out "/include/")))
                (install-file "libiberty.a" lib)
-               (install-file "../include/libiberty.h" include))
-             #t)))))
+               (install-file "../include/libiberty.h" include)))))))
     (inputs '())
     (outputs '("out"))
     (native-inputs '())
@@ -741,10 +733,10 @@ as the 'native-search-paths' field."
         `(modify-phases ,phases
            (add-after 'install 'remove-broken-or-conflicting-files
              (lambda* (#:key outputs #:allow-other-keys)
-               (for-each delete-file
-                         (find-files (string-append (assoc-ref outputs "out") "/bin")
-                                     ".*(c\\+\\+|cpp|g\\+\\+|gcov|gcc|gcc-.*)"))
-               #t))))))))
+               (for-each
+                delete-file
+                (find-files (string-append (assoc-ref outputs "out") "/bin")
+                            ".*(c\\+\\+|cpp|g\\+\\+|gcov|gcc|lto)(-.*)?$"))))))))))
 
 (define* (custom-gcc-gccgo gcc name languages
                            #:optional
@@ -796,12 +788,7 @@ as the 'native-search-paths' field."
 
 (define-public gfortran
   (hidden-package
-   (custom-gcc (package
-                 (inherit gcc)
-                 ;; XXX: Remove LIBSTDC++-HEADERS from the inputs just to
-                 ;; avoid a rebuild of all the GFORTRAN dependents.
-                 ;; TODO: Remove this hack on the next rebuild cycle.
-                 (inputs (alist-delete "libstdc++" (package-inputs gcc))))
+   (custom-gcc gcc
                "gfortran" '("fortran")
                %generic-search-paths)))
 
@@ -839,8 +826,7 @@ as the 'native-search-paths' field."
              (lambda* (#:key outputs #:allow-other-keys)
                (for-each delete-file
                          (find-files (string-append (assoc-ref outputs "out") "/bin")
-                                     ".*(c\\+\\+|cpp|g\\+\\+|gcov|gcc|gcc-.*)"))
-               #t))))))
+                                     ".*(c\\+\\+|cpp|g\\+\\+|gcov|gcc|gcc-.*)"))))))))
     (synopsis "GCC library generating machine code on-the-fly at runtime")
     (description
      "This package is part of the GNU Compiler Collection and provides an
@@ -946,7 +932,7 @@ provides the GNU compiler for the Go programming language."))
   (custom-gcc gcc-10 "gcc-objc" '("objc")
               %objc-search-paths))
 
-(define-public gcc-objc gcc-objc-7)
+(define-public gcc-objc gcc-objc-10)
 
 (define %objc++-search-paths
   (list (search-path-specification
@@ -988,7 +974,7 @@ provides the GNU compiler for the Go programming language."))
   (custom-gcc gcc-10 "gcc-objc++" '("obj-c++")
               %objc++-search-paths))
 
-(define-public gcc-objc++ gcc-objc++-7)
+(define-public gcc-objc++ gcc-objc++-10)
 
 (define (make-libstdc++-doc gcc)
   "Return a package with the libstdc++ documentation for GCC."
@@ -1013,8 +999,7 @@ provides the GNU compiler for the Go programming language."))
        #:phases (modify-phases %standard-phases
                   (add-before 'configure 'chdir
                               (lambda _
-                                (chdir "libstdc++-v3")
-                                #t))
+                                (chdir "libstdc++-v3")))
                   (add-before 'configure 'set-xsl-directory
                               (lambda* (#:key inputs #:allow-other-keys)
                                 (let ((docbook (assoc-ref inputs "docbook-xsl")))
@@ -1023,8 +1008,7 @@ provides the GNU compiler for the Go programming language."))
                                     (("@XSL_STYLE_DIR@")
                                      (string-append
                                       docbook "/xml/xsl/"
-                                      (strip-store-file-name docbook))))
-                                  #t)))
+                                      (strip-store-file-name docbook)))))))
                   (replace 'build
                            (lambda _
                              ;; XXX: There's also a 'doc-info' target, but it
@@ -1051,7 +1035,7 @@ provides the GNU compiler for the Go programming language."))
 (define-public isl
   (package
     (name "isl")
-    (version "0.22.1")
+    (version "0.23")
     (source (origin
              (method url-fetch)
              (uri (list (string-append
@@ -1062,7 +1046,7 @@ provides the GNU compiler for the Go programming language."))
                                        name "-" version ".tar.bz2")))
              (sha256
               (base32
-               "1kf54jib0nind1pvakblnfhimmwzm0y1llz8470ag0di5vwqwrhs"))))
+               "0k91zck10zxs9sk3yrbb92y1j3w981w3fbwkfwd7kl779b0j52f5"))))
     (build-system gnu-build-system)
     (outputs '("out" "static"))
     (arguments
@@ -1081,8 +1065,7 @@ provides the GNU compiler for the Go programming language."))
                         ;; libtool looks for it in the usual locations.
                         (substitute* (string-append out "/lib/libisl.la")
                           (("^old_library=.*")
-                           "old_library=''\n"))
-                        #t))))))
+                           "old_library=''\n"))))))))
     (inputs `(("gmp" ,gmp)))
     (home-page "http://isl.gforge.inria.fr/")
     (synopsis
@@ -1208,8 +1191,7 @@ effective code.")
                                            (copy-file file
                                                       (string-append html "/"
                                                                      file)))
-                                         (find-files "." "\\.html$"))
-                               #t))))))
+                                         (find-files "." "\\.html$"))))))))
     (synopsis "Reference manual for the C programming language")
     (description
      "This is a reference manual for the C programming language, as
diff --git a/gnu/packages/gd.scm b/gnu/packages/gd.scm
index 2923358d8f..e37c485761 100644
--- a/gnu/packages/gd.scm
+++ b/gnu/packages/gd.scm
@@ -3,7 +3,7 @@
 ;;; Copyright © 2015, 2016 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2016, 2017 Leo Famulari <leo@famulari.name>
-;;; Copyright © 2017 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2017, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
@@ -42,7 +42,7 @@
     ;; Note: With libgd.org now pointing to github.com, genuine old
     ;; tarballs are no longer available.  Notably, versions 2.0.x are
     ;; missing.
-    (version "2.3.0")
+    (version "2.3.2")
     (source (origin
              (method url-fetch)
              (uri (string-append
@@ -50,9 +50,14 @@
                    version "/libgd-" version ".tar.xz"))
              (sha256
               (base32
-               "0n5czhxzinvjvmhkf5l9fwjdx5ip69k5k7pj6zwb6zs1k9dibngc"))
-             (patches (search-patches "gd-fix-tests-on-i686.patch"
-                                      "gd-brect-bounds.patch"))))
+               "1yypywkh8vphcy4qqpf51kxpb0a3r7rjqk3fc61rpn70hiq092j7"))
+             (patches
+              (search-patches "gd-fix-tests-on-i686.patch"
+                              "gd-brect-bounds.patch"
+                              ;; Drop when
+                              ;; https://github.com/libgd/libgd/issues/691
+                              ;; is solved.
+                              "gd-Revert-fix-303-gdlib.pc-use-Requires-instead-of-Libs.patch"))))
     (build-system gnu-build-system)
     (arguments
       ;; As recommended by github.com/libgd/libgd/issues/278 to fix rounding
@@ -61,15 +66,14 @@
        #:configure-flags '("--disable-static")
        #:phases
        (modify-phases %standard-phases
-         ;; This test is known to fail on i686-linux:
+         ;; This test is known to fail on most architectures:
          ;; https://github.com/libgd/libgd/issues/359
          ;; TODO Replace this substitution with an upstream bug fix.
          (add-after 'unpack 'disable-failing-test
            (lambda _
              (substitute* "tests/gdimagegrayscale/basic.c"
                (("return gdNumFailures\\(\\)")
-                 "return 0"))
-             #t)))))
+                 "return 0")))))))
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (inputs
diff --git a/gnu/packages/gdb.scm b/gnu/packages/gdb.scm
index 8c28f82992..24b7c00dbd 100644
--- a/gnu/packages/gdb.scm
+++ b/gnu/packages/gdb.scm
@@ -5,6 +5,7 @@
 ;;; Copyright © 2020 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2020 Vincent Legoll <vincent.legoll@gmail.com>
 ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -118,6 +119,12 @@
                             mig/32-bit
                             mig)))
               '())))
+    ;; TODO: Add support for the GDB_DEBUG_FILE_DIRECTORY environment
+    ;; variable in GDB itself instead of relying on some glue code in
+    ;; the Guix-provided .gdbinit file.
+    (native-search-paths (list (search-path-specification
+                                (variable "GDB_DEBUG_FILE_DIRECTORY")
+                                (files '("lib/debug")))))
     (home-page "https://www.gnu.org/software/gdb/")
     (synopsis "The GNU debugger")
     (description
@@ -129,18 +136,18 @@ written in C, C++, Ada, Objective-C, Pascal and more.")
     (license gpl3+)))
 
 ;; This version of GDB is required by some of the Rust compilers, see
-;; <https://bugs.gnu.org/37810>.
-(define-public gdb-8.2
+;; <https://github.com/rust-lang/rust/issues/79009>.
+(define-public gdb-9.2
   (package
     (inherit gdb-10)
-    (version "8.2.1")
+    (version "9.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnu/gdb/gdb-"
                                   version ".tar.xz"))
               (sha256
                (base32
-                "00i27xqawjv282a07i73lp1l02n0a3ywzhykma75qg500wll6sha"))))
+                "0mf5fn8v937qwnal4ykn3ji1y2sxk0fa1yfqi679hxmpg6pdf31n"))))
     (inputs
      (alist-replace "guile" (list guile-2.0)
                     (package-inputs gdb-10)))))
diff --git a/gnu/packages/geo.scm b/gnu/packages/geo.scm
index 1be6d14974..e31ad6704d 100644
--- a/gnu/packages/geo.scm
+++ b/gnu/packages/geo.scm
@@ -1973,8 +1973,7 @@ track your position right from your laptop.")
          (modify-phases %standard-phases
            (replace 'configure
              (lambda* (#:key inputs outputs #:allow-other-keys)
-               (let ((shell (string-append (assoc-ref inputs "bash")
-                                           "/bin/bash")))
+               (let ((shell (search-input-file inputs "/bin/bash")))
                  (setenv "SHELL" shell)
                  (setenv "CONFIG_SHELL" shell)
                  (setenv "LDFLAGS" (string-append "-Wl,-rpath -Wl,"
@@ -2147,8 +2146,7 @@ growing set of geoscientific methods.")
          (replace 'check
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "HOME" "/tmp")
-             (system (string-append (assoc-ref inputs "xorg-server")
-                                    "/bin/Xvfb :1 &"))
+             (system "Xvfb :1 &")
              (setenv "DISPLAY" ":1")
              (setenv "TRAVIS" "true")
              (setenv "CTEST_OUTPUT_ON_FAILURE" "1")
diff --git a/gnu/packages/gettext.scm b/gnu/packages/gettext.scm
index 82604ee9be..a71af5bbe3 100644
--- a/gnu/packages/gettext.scm
+++ b/gnu/packages/gettext.scm
@@ -4,7 +4,7 @@
 ;;; Copyright © 2015, 2017 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2016, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Alex Kost <alezost@gmail.com>
-;;; Copyright © 2017, 2019 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2017, 2019, 2020 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2017 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
@@ -52,14 +52,14 @@
 (define-public gettext-minimal
   (package
     (name "gettext-minimal")
-    (version "0.20.1")
+    (version "0.21")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnu/gettext/gettext-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "0p3zwkk27wm2m2ccfqm57nj7vqkmfpn7ja1nf65zmhz8qqs5chb6"))))
+                "04kbg1sx0ncfrsbr85ggjslqkzzb243fcw9nyh3rrv1a22ihszf7"))))
     (build-system gnu-build-system)
     (outputs '("out"
                "doc"))                            ;9 MiB of HTML
@@ -238,12 +238,14 @@ from Markdown files.")
      `(#:phases
        (modify-phases %standard-phases
          (add-after 'install 'wrap-programs
-          (lambda* (#:key outputs #:allow-other-keys)
+          (lambda* (#:key inputs outputs #:allow-other-keys)
             ;; Make sure all executables in "bin" find the Perl modules
-            ;; provided by this package at runtime.
+            ;; required by this package at runtime.
             (let* ((out  (assoc-ref outputs "out"))
                    (bin  (string-append out "/bin/"))
-                   (path (string-append out "/lib/perl5/site_perl")))
+                   (Pod::Parser (assoc-ref inputs "perl-pod-parser"))
+                   (path (string-append out "/lib/perl5/site_perl:"
+                                        Pod::Parser "/lib/perl5/site_perl")))
               (for-each (lambda (file)
                           (wrap-program file
                             `("PERL5LIB" ":" prefix (,path))))
@@ -263,6 +265,13 @@ from Markdown files.")
                 (string-append (assoc-ref inputs "docbook-xml")
                                "/xml/dtd/docbook/")))
              #t))
+         (add-before 'build 'do-not-override-PERL5LIB
+           (lambda _
+             ;; Don't hard-code PERL5LIB to include just the build directory
+             ;; so that the build script finds modules from inputs.
+             (substitute* "Po4aBuilder.pm"
+               (("PERL5LIB=lib") ""))
+             (setenv "PERL5LIB" (string-append (getenv "PERL5LIB") ":lib"))))
          (add-before 'check 'disable-failing-tests
            (lambda _
              ;; FIXME: these tests require SGMLS.pm.
@@ -286,6 +295,8 @@ from Markdown files.")
        ("perl-test-pod" ,perl-test-pod)
        ("perl-yaml-tiny" ,perl-yaml-tiny)
        ("texlive" ,texlive-tiny)))
+    (inputs
+     `(("perl-pod-parser" ,perl-pod-parser)))
     (home-page "https://po4a.org/")
     (synopsis "Scripts to ease maintenance of translations")
     (description
diff --git a/gnu/packages/ghostscript.scm b/gnu/packages/ghostscript.scm
index 03a516dc52..35e637648c 100644
--- a/gnu/packages/ghostscript.scm
+++ b/gnu/packages/ghostscript.scm
@@ -4,11 +4,12 @@
 ;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2013, 2015, 2016, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017 Alex Vong <alexvong1995@gmail.com>
-;;; Copyright © 2017, 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2017, 2018, 2019, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018, 2020 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
+;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -48,15 +49,14 @@
 (define-public lcms
   (package
    (name "lcms")
-   (version "2.9")
+   (version "2.12")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://sourceforge/lcms/lcms/" version
                                 "/lcms2-" version ".tar.gz"))
 
-            (patches (search-patches "lcms-CVE-2018-16435.patch"))
             (sha256 (base32
-                     "083xisy6z01zhm7p7rgk4bx9d6zlr8l20qkfv1g29ylnhgwzvij8"))))
+                     "1x8hzq8kw16lgjxmqpnqah1p3hrqqhjpcl1ymiah8434x22kjrhq"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags '("--disable-static")))
@@ -69,7 +69,7 @@
 focus on accuracy and performance.  It uses the International Color
 Consortium standard (ICC), approved as ISO 15076-1.")
    (license license:x11)
-   (home-page "http://www.littlecms.com/")
+   (home-page "https://www.littlecms.com/")
    (properties '((cpe-name . "little_cms_color_engine")))))
 
 (define-public libpaper
@@ -159,7 +159,7 @@ printing, and psresize, for adjusting page sizes.")
 (define-public ghostscript
   (package
     (name "ghostscript")
-    (version "9.52")
+    (version "9.54.0")
     (source
       (origin
         (method url-fetch)
@@ -169,10 +169,8 @@ printing, and psresize, for adjusting page sizes.")
                             "/ghostscript-" version ".tar.xz"))
         (sha256
          (base32
-          "0z1w42y2jmcpl2m1l3z0sfii6zmvzcwcgzn6bydklia6ig7jli2p"))
-        (patches (search-patches "ghostscript-freetype-compat.patch"
-                                 "ghostscript-CVE-2020-15900.patch"
-                                 "ghostscript-no-header-creationdate.patch"
+          "0fvfvv6di5s6j4sy4gaw65klm23dby39bkdjxxq4w3v0vqyb9dy2"))
+        (patches (search-patches "ghostscript-no-header-creationdate.patch"
                                  "ghostscript-no-header-id.patch"
                                  "ghostscript-no-header-uuid.patch"))
         (modules '((guix build utils)))
@@ -206,7 +204,7 @@ printing, and psresize, for adjusting page sizes.")
              "--enable-dynamic"
              "--disable-compile-inits"
              (string-append "--with-fontpath="
-                            (assoc-ref %build-inputs "gs-fonts")
+                            (assoc-ref %build-inputs "font-ghostscript")
                             "/share/fonts/type1/ghostscript")
 
              ,@(if (%current-target-system)
@@ -268,7 +266,7 @@ printing, and psresize, for adjusting page sizes.")
     (native-inputs
      `(("perl" ,perl)
        ("pkg-config" ,pkg-config)       ;needed for freetype
-       ("python" ,python-wrapper)
+       ("python" ,python-minimal-wrapper)
        ("tcl" ,tcl)
 
        ;; When cross-compiling, some of the natively-built tools require all
@@ -280,7 +278,7 @@ printing, and psresize, for adjusting page sizes.")
     (inputs
      `(("fontconfig" ,fontconfig)
        ("freetype" ,freetype)
-       ("gs-fonts" ,gs-fonts)
+       ("font-ghostscript" ,font-ghostscript)
        ("jbig2dec" ,jbig2dec)
        ("libjpeg" ,libjpeg-turbo)
        ("libpaper" ,libpaper)
@@ -345,9 +343,9 @@ architecture.")
    (license license:expat)
    (home-page (package-home-page ghostscript))))
 
-(define-public gs-fonts
+(define-public font-ghostscript
   (package
-   (name "gs-fonts")
+   (name "font-ghostscript")
    (version "8.11")
    (source (origin
             (method url-fetch)
@@ -386,16 +384,20 @@ Ghostscript.  It currently includes the 35 standard PostScript fonts.")
    (license license:gpl2)
    (home-page "https://sourceforge.net/projects/gs-fonts/")))
 
+(define-public gs-fonts
+  (deprecated-package "gs-fonts" font-ghostscript))
+
 (define-public libspectre
   (package
    (name "libspectre")
-   (version "0.2.8")
+   (version "0.2.9")
    (source (origin
             (method url-fetch)
-            (uri (string-append "https://libspectre.freedesktop.org/releases/libspectre-"
-                                version ".tar.gz"))
-            (sha256 (base32
-                     "1a67iglsc3r05mzngyg9kb1gy8whq4fgsnyjwi7bqfw2i7rnl9b5"))))
+            (uri (string-append "https://libspectre.freedesktop.org/releases"
+                                "/libspectre-" version ".tar.gz"))
+            (sha256
+             (base32
+              "1vgvxp77d5d9chhx4i9cv9hifw4x10jgw6aw8l2v90dgnm99rbj9"))))
    (build-system gnu-build-system)
    (inputs `(("ghostscript" ,ghostscript)))
    (native-inputs `(("pkg-config" ,pkg-config)))
diff --git a/gnu/packages/gimp.scm b/gnu/packages/gimp.scm
index 2da57ee8ee..81c56946ad 100644
--- a/gnu/packages/gimp.scm
+++ b/gnu/packages/gimp.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2015, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016, 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2016, 2017, 2018, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
@@ -185,8 +185,7 @@ of a larger interface.")
                 "1w68h81kqkqnziixrx21qs0gfv2z79651h19sxn226xdb58mjgqb"))))
     (build-system meson-build-system)
     (arguments
-     `(#:meson ,meson-0.55
-       #:configure-flags
+     `(#:configure-flags
        (list "-Denable-gir=false")))
     (native-inputs
      `(("pkg-config" ,pkg-config)))
@@ -225,8 +224,7 @@ provided, as well as a framework to add new color models and data types.")
                 "1pd8xkx70k0fsi1hrzrmaify7112wjmxzk0p6bi6js89yhn7h4n1"))))
     (build-system meson-build-system)
     (arguments
-     `(#:meson ,meson-0.55
-       #:configure-flags
+     `(#:configure-flags
        (list "-Dintrospection=false")
        #:phases
        (modify-phases %standard-phases
@@ -304,7 +302,7 @@ buffers.")
            ;; Install 'sitecustomize.py' into gimp's python directory to
            ;; add pygobject and pygtk to pygimp's search path.
            (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((pythonpath (getenv "PYTHONPATH"))
+             (let* ((pythonpath (getenv "GUIX_PYTHONPATH"))
                     (out        (assoc-ref outputs "out"))
                     (sitecustomize.py
                      (string-append
@@ -369,8 +367,8 @@ that is extensible via a plugin system.")
          (replace 'configure
            (lambda* (#:key inputs #:allow-other-keys)
              (mkdir-p "tmppkgconfig")
-             (copy-file (string-append (assoc-ref inputs "gegl")
-                                       "/lib/pkgconfig/gegl-0.4.pc")
+             (copy-file (search-input-file inputs
+                                           "/lib/pkgconfig/gegl-0.4.pc")
                         "tmppkgconfig/gegl-0.3.pc")
              (setenv "PKG_CONFIG_PATH"
                      (string-append "tmppkgconfig:"
@@ -608,7 +606,7 @@ transferring the style of an image.")
            ;; Install 'sitecustomize.py' into glimpse's python directory to
            ;; add pygobject and pygtk to pygimp's search path.
            (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((pythonpath (getenv "PYTHONPATH"))
+             (let* ((pythonpath (getenv "GUIX_PYTHONPATH"))
                     (out        (assoc-ref outputs "out"))
                     (sitecustomize.py
                      (string-append
diff --git a/gnu/packages/gl.scm b/gnu/packages/gl.scm
index 4a1a7001fe..92c8b59e45 100644
--- a/gnu/packages/gl.scm
+++ b/gnu/packages/gl.scm
@@ -13,6 +13,7 @@
 ;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
 ;;; Copyright © 2020 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2020 Giacomo Leidi <goodoldpaul@autistici.org>
+;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2020 Kei Kebreau <kkebreau@posteo.net>
 ;;; Copyright © 2021 Ivan Gankevich <i.gankevich@spbu.ru>
 ;;;
@@ -107,6 +108,7 @@ as ASCII text.")
               (uri (string-append
                     "mirror://sourceforge/freeglut/freeglut/"
                     version "/freeglut-" version ".tar.gz"))
+              (patches (search-patches "freeglut-gcc-compat.patch"))
               (sha256
                (base32
                 "0s6sk49q8ijgbsrrryb7dzqx2fa744jhx1wck5cz5jia2010w06l"))))
@@ -236,7 +238,7 @@ also known as DXTn or DXTC) for Mesa.")
 (define-public mesa
   (package
     (name "mesa")
-    (version "20.2.4")
+    (version "20.2.6")
     (source
       (origin
         (method url-fetch)
@@ -248,7 +250,7 @@ also known as DXTn or DXTC) for Mesa.")
                                   version "/mesa-" version ".tar.xz")))
         (sha256
          (base32
-          "14m09bk7akj0k02lg8fhvvzbdsashlbdsgl2cw7wbqfj2mhdqwh5"))
+          "1nw5k2qrlcrp5bljy1lmyybgl525y0h44synkbbirw92qv3a6b7i"))
         (patches
          (search-patches "mesa-skip-tests.patch"))))
     (build-system meson-build-system)
@@ -271,7 +273,7 @@ also known as DXTn or DXTC) for Mesa.")
         ("libxrandr" ,libxrandr)
         ("libxvmc" ,libxvmc)
         ,@(match (%current-system)
-            ((or "x86_64-linux" "i686-linux" "powerpc64le-linux")
+            ((or "x86_64-linux" "i686-linux" "powerpc64le-linux" "aarch64-linux" "powerpc-linux")
              ;; Note: update the 'clang' input of mesa-opencl when bumping this.
              `(("llvm" ,llvm-11)))
             (_
@@ -283,7 +285,7 @@ also known as DXTn or DXTC) for Mesa.")
         ("flex" ,flex)
         ("gettext" ,gettext-minimal)
         ,@(match (%current-system)
-            ((or "x86_64-linux" "i686-linux" "powerpc64le-linux")
+            ((or "x86_64-linux" "i686-linux" "powerpc64le-linux" "aarch64-linux" "powerpc-linux")
              `(("glslang" ,glslang)))
             (_
              `()))
@@ -298,36 +300,38 @@ also known as DXTn or DXTC) for Mesa.")
              ((or "armhf-linux" "aarch64-linux")
               ;; TODO: Fix svga driver for non-Intel architectures.
               '("-Dgallium-drivers=etnaviv,freedreno,kmsro,lima,nouveau,panfrost,r300,r600,swrast,tegra,v3d,vc4,virgl"))
-             ("powerpc64le-linux"
+             ((or "powerpc64le-linux" "powerpc-linux")
               '("-Dgallium-drivers=nouveau,r300,r600,radeonsi,swrast,virgl"))
              (_
               '("-Dgallium-drivers=iris,nouveau,r300,r600,radeonsi,svga,swrast,virgl")))
          ;; Enable various optional features.  TODO: opencl requires libclc,
          ;; omx requires libomxil-bellagio
-         "-Dplatforms=x11,drm,surfaceless,wayland"
+         "-Dplatforms=x11,wayland"
          "-Dglx=dri"        ;Thread Local Storage, improves performance
          ;; "-Dopencl=true"
          ;; "-Domx=true"
          "-Dosmesa=gallium"
-         "-Dgallium-xa=true"
+         "-Dgallium-xa=enabled"
 
          ;; features required by wayland
-         "-Dgles2=true"
-         "-Dgbm=true"
-         "-Dshared-glapi=true"
+         "-Dgles2=enabled"
+         "-Dgbm=enabled"
+         "-Dshared-glapi=enabled"
 
          ;; Explicitly enable Vulkan on some architectures.
          ,@(match (%current-system)
              ((or "i686-linux" "x86_64-linux")
               '("-Dvulkan-drivers=intel,amd"))
-             ("powerpc64le-linux"
+             ((or "powerpc64le-linux" "powerpc-linux")
               '("-Dvulkan-drivers=amd"))
+             ("aarch64-linux"
+              '("-Dvulkan-drivers=freedreno,amd"))
              (_
               '("-Dvulkan-drivers=auto")))
 
          ;; Enable the Vulkan overlay layer on architectures using llvm.
          ,@(match (%current-system)
-             ((or "x86_64-linux" "i686-linux" "powerpc64le-linux")
+             ((or "x86_64-linux" "i686-linux" "powerpc64le-linux" "aarch64-linux" "powerpc-linux")
               '("-Dvulkan-overlay-layer=true"))
              (_
               '()))
@@ -340,10 +344,10 @@ also known as DXTn or DXTC) for Mesa.")
          ,@(match (%current-system)
              ((or "x86_64-linux" "i686-linux")
               '("-Ddri-drivers=i915,i965,nouveau,r200,r100"
-                "-Dllvm=true"))         ; default is x86/x86_64 only
-             ("powerpc64le-linux"
+                "-Dllvm=enabled"))      ; default is x86/x86_64 only
+             ((or "powerpc64le-linux" "aarch64-linux" "powerpc-linux")
               '("-Ddri-drivers=nouveau,r200,r100"
-                "-Dllvm=true"))
+                "-Dllvm=enabled"))
              (_
               '("-Ddri-drivers=nouveau,r200,r100"))))
 
@@ -357,25 +361,39 @@ also known as DXTn or DXTC) for Mesa.")
                   (guix build meson-build-system))
        #:phases
        (modify-phases %standard-phases
-         ,@(if (string-prefix? "powerpc64le" (or (%current-target-system)
-                                                 (%current-system)))
-               ;; Disable some of the llvmpipe tests.
-               `((add-after 'unpack 'disable-failing-test
-                   (lambda _
-                     (substitute* "src/gallium/drivers/llvmpipe/lp_test_arit.c"
-                       (("0\\.5, ") ""))
-                     #t)))
-               '())
-         ,@(if (string-prefix? "i686" (or (%current-target-system)
-                                          (%current-system)))
-               ;; Disable new test from Mesa 19 that fails on i686.  Upstream
-               ;; report: <https://bugs.freedesktop.org/show_bug.cgi?id=110612>.
-               `((add-after 'unpack 'disable-failing-test
-                   (lambda _
-                     (substitute* "src/util/tests/format/meson.build"
-                       (("'u_format_test',") ""))
-                     #t)))
-               '())
+         (add-after 'unpack 'disable-failing-test
+           (lambda _
+             ,@(match (%current-system)
+                 ("powerpc64le"
+                  ;; Disable some of the llvmpipe tests.
+                  `((substitute* "src/gallium/drivers/llvmpipe/lp_test_arit.c"
+                      (("0\\.5, ") ""))))
+                 ("powerpc"
+                  ;; There are some tests which fail specifically on powerpc.
+                  `((substitute* '(;; LLVM ERROR: Relocation type not implemented yet!
+                                   "src/gallium/drivers/llvmpipe/meson.build"
+                                   ;; This is probably a big-endian test failure.
+                                   "src/gallium/targets/osmesa/meson.build")
+                      (("if with_tests") "if not with_tests"))
+                    (substitute* "src/util/tests/format/meson.build"
+                      ;; This is definately an endian-ness test failure.
+                      (("'u_format_test', ") ""))
+                    ;; It is only this portion of the test which fails.
+                    (substitute* "src/mesa/main/tests/meson.build"
+                      ((".*mesa_formats.*") ""))))
+                 ("i686-linux"
+                  ;; Disable new test from Mesa 19 that fails on i686.  Upstream
+                  ;; report: <https://bugs.freedesktop.org/show_bug.cgi?id=110612>.
+                  `((substitute* "src/util/tests/format/meson.build"
+                      (("'u_format_test',") ""))))
+                 (_
+                  '((display "No tests to disable on this architecture.\n"))))))
+         (add-after 'unpack 'fix-tests
+           (lambda _
+             ;; See <https://gitlab.freedesktop.org/mesa/mesa/-/issues/3181>.
+             (substitute* "src/compiler/glsl/glcpp/tests/084-unbalanced-parentheses.c.expected"
+              (("unexpected \\$end") "unexpected end of file"))
+             #t))
          (add-before 'configure 'fix-dlopen-libnames
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out")))
@@ -399,22 +417,13 @@ also known as DXTn or DXTC) for Mesa.")
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out"))
                    (bin (assoc-ref outputs "bin")))
-               ,@(match (%current-system)
-                   ((or "i686-linux" "x86_64-linux" "powerpc64le-linux")
-                    ;; Install the Vulkan overlay control script to a separate
-                    ;; output to prevent a reference on Python, saving ~70 MiB
-                    ;; on the closure size.
-                    '((copy-recursively (string-append out "/bin")
-                                        (string-append bin "/bin"))
-                      (delete-file-recursively (string-append out "/bin"))))
-                   (_
-                    ;; XXX: On architectures without the Vulkan overlay layer
-                    ;; just create an empty file because outputs can not be
-                    ;; added conditionally.
-                    '((mkdir-p (string-append bin "/bin"))
-                      (call-with-output-file (string-append bin "/bin/.empty")
-                        (const #t)))))
-               #t)))
+               ;; Not all architectures have the Vulkan overlay control script.
+               (mkdir-p (string-append bin "/bin"))
+               (call-with-output-file (string-append bin "/bin/.empty")
+                 (const #t))
+               (copy-recursively (string-append out "/bin")
+                                 (string-append bin "/bin"))
+               (delete-file-recursively (string-append out "/bin")))))
          (add-after 'install 'symlinks-instead-of-hard-links
            (lambda* (#:key outputs #:allow-other-keys)
              ;; All the drivers and gallium targets create hard links upon
@@ -680,7 +689,7 @@ OpenGL graphics API.")
 (define-public libepoxy
   (package
     (name "libepoxy")
-    (version "1.5.4")
+    (version "1.5.5")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -688,7 +697,7 @@ OpenGL graphics API.")
                     version "/libepoxy-" version ".tar.xz"))
               (sha256
                (base32
-                "1ll9fach4v30dsyd47s5ial4gaiwihzr2afb77vxxzzy3mlcrlhb"))))
+                "0mh5bdgqfd8m4wj6jlvn4ac94sgfa8r6ish75ciwrhdw47dn65i6"))))
     (arguments
      `(#:phases
        (modify-phases %standard-phases
@@ -708,7 +717,8 @@ OpenGL graphics API.")
     (native-inputs
      `(("pkg-config" ,pkg-config)
        ("python" ,python)))
-    (inputs
+    (propagated-inputs
+     ;; epoxy.pc: 'Requires.private: gl egl'
      `(("mesa" ,mesa)))
     (home-page "https://github.com/anholt/libepoxy/")
     (synopsis "A library for handling OpenGL function pointer management")
diff --git a/gnu/packages/glib.scm b/gnu/packages/glib.scm
index 91ef45099c..ae88dbe9e7 100644
--- a/gnu/packages/glib.scm
+++ b/gnu/packages/glib.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2015 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2021 Mark H Weaver <mhw@netris.org>
@@ -11,9 +11,12 @@
 ;;; Copyright © 2018 Alex Vong <alexvong1995@gmail.com>
 ;;; Copyright © 2019, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2019 Giacomo Leidi <goodoldpaul@autistici.org>
-;;; Copyright © 2019, 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2019, 2020, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2020 Nicolò Balzarotti <nicolo@nixo.xyz>
+;;; Copyright © 2020 Florian Pelz <pelzflorian@pelzflorian.de>
+;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2020 Arthur Margerit <ruhtra.mar@gmail.com>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -34,16 +37,20 @@
   #:use-module (gnu packages)
   #:use-module (gnu packages backup)
   #:use-module (gnu packages base)
+  #:use-module (gnu packages bash)
   #:use-module (gnu packages bison)
+  #:use-module (gnu packages boost)
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages docbook)
   #:use-module (gnu packages documentation)
+  #:use-module (gnu packages elf)
   #:use-module (gnu packages enlightenment)
   #:use-module (gnu packages file)
   #:use-module (gnu packages flex)
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages gnome)
+  #:use-module (gnu packages graphviz)
   #:use-module (gnu packages gperf)
   #:use-module (gnu packages gtk)
   #:use-module (gnu packages libffi)
@@ -58,7 +65,6 @@
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
   #:use-module (gnu packages python-xyz)
-  #:use-module (gnu packages selinux)
   #:use-module (gnu packages web)
   #:use-module (gnu packages xml)
   #:use-module (gnu packages xorg)
@@ -71,6 +77,8 @@
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
   #:use-module (guix utils)
+  #:use-module (guix gexp)
+  #:use-module (srfi srfi-26)
   #:use-module ((srfi srfi-1) #:hide (zip))
 
   ;; Export variables up-front to allow circular dependency with the 'xorg'
@@ -90,7 +98,7 @@
 (define dbus
   (package
     (name "dbus")
-    (version "1.12.16")
+    (version "1.12.20")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -98,9 +106,8 @@
                     version ".tar.gz"))
               (sha256
                (base32
-                "107ckxaff1cv4q6kmfdi2fb1nlsv03312a7kf6lb4biglhpjv8jl"))
-              (patches (search-patches "dbus-CVE-2020-12049.patch"
-                                       "dbus-helper-search-path.patch"))))
+                "1zp5gpx61v1cpqf2zwb1cidhp9xylvw49d3zydkxqk6b1qa20xpp"))
+              (patches (search-patches "dbus-helper-search-path.patch"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags
@@ -170,264 +177,184 @@ shared NFS home directories.")
 
 (define glib
   (package
-   (name "glib")
-   (version "2.62.6")
-   (replacement glib/fixed)
-   (source (origin
-            (method url-fetch)
-            (uri (string-append "mirror://gnome/sources/"
-                                name "/" (string-take version 4) "/"
-                                name "-" version ".tar.xz"))
-            (sha256
-             (base32
-              "174bsmbmcvaw69ff9g60q5sx0fn23rkhqcwqz17h5s7sprps4kqh"))
-            (patches (search-patches "glib-appinfo-watch.patch"
-                                     "glib-tests-timer.patch"))
-            (modules '((guix build utils)))
-            (snippet
-             '(begin
-                (substitute* "tests/spawn-test.c"
-                  (("/bin/sh") "sh"))
-                #t))))
-   (build-system meson-build-system)
-   (outputs '("out"           ; everything
-              "bin"))         ; glib-mkenums, gtester, etc.; depends on Python
-   (propagated-inputs
-    `(("pcre" ,pcre)  ; in the Requires.private field of glib-2.0.pc
-      ("libffi" ,libffi) ; in the Requires.private field of gobject-2.0.pc
-      ;; These are in the Requires.private field of gio-2.0.pc
-      ("util-linux" ,util-linux "lib")  ;for libmount
-      ("libselinux" ,libselinux)
-      ("zlib" ,zlib)))
-   (native-inputs
-    `(("gettext" ,gettext-minimal)
-      ("m4" ,m4) ; for installing m4 macros
-      ("dbus" ,dbus)                              ; for GDBus tests
-      ("pkg-config" ,pkg-config)
-      ("python" ,python-wrapper)
-      ("perl" ,perl)                              ; needed by GIO tests
-      ("tzdata" ,tzdata-for-tests)))                  ; for tests/gdatetime.c
-   (arguments
-    `(#:disallowed-references (,tzdata-for-tests)
-      #:phases
-      (modify-phases %standard-phases
-        (add-after 'unpack 'patch-dbus-launch-path
-          (lambda* (#:key inputs #:allow-other-keys)
-            (let ((dbus (assoc-ref inputs "dbus")))
-              (substitute* "gio/gdbusaddress.c"
-                (("command_line = g_strdup_printf \\(\"dbus-launch")
-                 (string-append "command_line = g_strdup_printf (\""
-                                dbus "/bin/dbus-launch")))
-              #t)))
-        (add-after 'unpack 'patch-gio-launch-desktop
-          (lambda* (#:key outputs #:allow-other-keys)
-            (let ((out (assoc-ref outputs "out")))
-              ;; See also <https://gitlab.gnome.org/GNOME/glib/issues/1633>
-              ;; for another future fix.
-              (substitute* "gio/gdesktopappinfo.c"
-               (("gio-launch-desktop")
-                (string-append out "/libexec/gio-launch-desktop")))
-              #t)))
-        ;; TODO: Remove the conditional in the next core-updates cycle.
-        ;; Needed to build glib on slower ARM nodes.
-        ,@(if (string-prefix? "arm" (%current-system))
-              `((add-after 'unpack 'increase-test-timeout
-                  (lambda _
-                    (substitute* "meson.build"
-                      (("test_timeout = 60")
-                       "test_timeout = 120")
-                      (("test_timeout_slow = 120")
-                       "test_timeout_slow = 180")))))
-              '())
-        (add-before 'build 'pre-build
-          (lambda* (#:key inputs outputs #:allow-other-keys)
-            ;; For tests/gdatetime.c.
-            (setenv "TZDIR"
-                    (string-append (assoc-ref inputs "tzdata")
-                                   "/share/zoneinfo"))
-
-            ;; Some tests want write access there.
-            (setenv "HOME" (getcwd))
-            (setenv "XDG_CACHE_HOME" (getcwd))
-            #t))
-        (add-after 'unpack 'disable-failing-tests
-          (lambda _
-            (let ((disable
-                   (lambda (test-file test-paths)
-                     (define pattern+procs
-                       (map (lambda (test-path)
-                              (cons
-                               ;; XXX: only works for single line statements.
-                               (format #f "g_test_add_func.*\"~a\".*" test-path)
-                               (const "")))
-                            test-paths))
-                     (substitute test-file pattern+procs)))
-                  (failing-tests
-                   '(("glib/tests/thread.c"
-                      (;; prlimit(2) returns ENOSYS on Linux 2.6.32-5-xen-amd64
-                       ;; as found on hydra.gnu.org, and strace(1) doesn't
-                       ;; recognize it.
-                       "/thread/thread4"))
-
-                     ;; This tries to find programs in FHS directories.
-                     ("glib/tests/utils.c"
-                      ("/utils/find-program"))
-
-                     ;; This fails because "glib/tests/echo-script" cannot be
-                     ;; found.
-                     ("glib/tests/spawn-singlethread.c"
-                      ("/gthread/spawn-script"))
-
-                     ("glib/tests/timer.c"
-                      (;; fails if compiler optimizations are enabled, which they
-                       ;; are by default.
-                       "/timer/stop"))
-
-                     ("gio/tests/gapplication.c"
-                      (;; XXX: proven to be unreliable.  See:
-                       ;;  <https://bugs.debian.org/756273>
-                       ;;  <http://bugs.gnu.org/18445>
-                       "/gapplication/quit"
-
-                       ;; XXX: fails randomly for unknown reason. See:
-                       ;;  <https://lists.gnu.org/archive/html/guix-devel/2016-04/msg00215.html>
-                       "/gapplication/local-actions"))
-
-                     ("gio/tests/contenttype.c"
-                      (;; XXX: requires shared-mime-info.
-                       "/contenttype/guess"
-                       "/contenttype/guess_svg_from_data"
-                       "/contenttype/subtype"
-                       "/contenttype/list"
-                       "/contenttype/icon"
-                       "/contenttype/symbolic-icon"
-                       "/contenttype/tree"))
-
-                     ("gio/tests/appinfo.c"
-                      (;; XXX: requires update-desktop-database.
-                       "/appinfo/associations"))
-
-                     ("gio/tests/desktop-app-info.c"
-                      (;; XXX: requires update-desktop-database.
-                       "/desktop-app-info/delete"
-                       "/desktop-app-info/default"
-                       "/desktop-app-info/fallback"
-                       "/desktop-app-info/lastused"
-                       "/desktop-app-info/search"))
-
-                     ("gio/tests/gdbus-peer.c"
-                      (;; Requires /etc/machine-id.
-                       "/gdbus/codegen-peer-to-peer"))
-
-                     ("gio/tests/gdbus-address-get-session.c"
-                      (;; Requires /etc/machine-id.
-                       "/gdbus/x11-autolaunch"))
-
-                     ("gio/tests/gsocketclient-slow.c"
-                      (;; These tests tries to resolve "localhost", and fails.
-                       "/socket-client/happy-eyeballs/slow"
-                       "/socket-client/happy-eyeballs/cancellation/delayed"))
-
-                     )))
-              (for-each (lambda (x) (apply disable x)) failing-tests)
-              #t)))
-        (replace 'check
-          (lambda _
-            (setenv "MESON_TESTTHREADS"
-                    (number->string (parallel-job-count)))
-            ;; Do not run tests marked as "flaky".
-            (invoke "meson" "test" "--no-suite" "flaky")))
-        ;; TODO: meson does not permit the bindir to be outside of prefix.
-        ;; See https://github.com/mesonbuild/meson/issues/2561
-        ;; We can remove this once meson is patched.
-        (add-after 'install 'move-executables
-          (lambda* (#:key outputs #:allow-other-keys)
-            (let ((out (assoc-ref outputs "out"))
-                  (bin (assoc-ref outputs "bin")))
-              (mkdir-p bin)
-              (rename-file (string-append out "/bin")
-                           (string-append bin "/bin"))
-              ;; This one is an implementation detail of glib.
-              ;; It is wrong that that's in "/bin" in the first place,
-              ;; but that's what upstream is doing right now.
-              ;; See <https://gitlab.gnome.org/GNOME/glib/issues/1633>.
-              (mkdir (string-append out "/libexec"))
-              (rename-file (string-append bin "/bin/gio-launch-desktop")
-                           (string-append out "/libexec/gio-launch-desktop"))
-              ;; Do not refer to "bindir", which points to "${prefix}/bin".
-              ;; We don't patch "bindir" to point to "$bin/bin", because that
-              ;; would create a reference cycle between the "out" and "bin"
-              ;; outputs.
-              (substitute* (list (string-append out "/lib/pkgconfig/gio-2.0.pc")
-                                 (string-append out "/lib/pkgconfig/glib-2.0.pc"))
-                (("bindir=\\$\\{prefix\\}/bin") "")
-                (("=\\$\\{bindir\\}/") "="))
-              #t))))))
-      ;; TODO: see above for explanation.
-      ;; #:configure-flags (list (string-append "--bindir="
-      ;;                                        (assoc-ref %outputs "bin")
-      ;;                                        "/bin"))
-
-   (native-search-paths
-    ;; This variable is not really "owned" by GLib, but several related
-    ;; packages refer to it: gobject-introspection's tools use it as a search
-    ;; path for .gir files, and it's also a search path for schemas produced
-    ;; by 'glib-compile-schemas'.
-    (list (search-path-specification
-           (variable "XDG_DATA_DIRS")
-           (files '("share")))
-          ;; To load extra gio modules from glib-networking, etc.
-          (search-path-specification
-           (variable "GIO_EXTRA_MODULES")
-           (files '("lib/gio/modules")))))
-   (search-paths native-search-paths)
-   (properties '((hidden? . #t)))
-
-   (synopsis "Thread-safe general utility library; basis of GTK+ and GNOME")
-   (description
-    "GLib provides data structure handling for C, portability wrappers,
-and interfaces for such runtime functionality as an event loop, threads,
-dynamic loading, and an object system.")
-   (home-page "https://developer.gnome.org/glib/")
-   (license license:lgpl2.1+)))
-
-(define glib/fixed
-  (package
-    (inherit glib)
-    (source (origin
-              (inherit (package-source glib))
-              (patches
-               (append (search-patches "glib-CVE-2021-27218.patch"
-                                       "glib-CVE-2021-27219-01.patch"
-                                       "glib-CVE-2021-27219-02.patch"
-                                       "glib-CVE-2021-27219-03.patch"
-                                       "glib-CVE-2021-27219-04.patch"
-                                       "glib-CVE-2021-27219-05.patch"
-                                       "glib-CVE-2021-27219-06.patch"
-                                       "glib-CVE-2021-27219-07.patch"
-                                       "glib-CVE-2021-27219-08.patch"
-                                       "glib-CVE-2021-27219-09.patch"
-                                       "glib-CVE-2021-27219-10.patch"
-                                       "glib-CVE-2021-27219-11.patch"
-                                       "glib-CVE-2021-27219-12.patch"
-                                       "glib-CVE-2021-27219-13.patch"
-                                       "glib-CVE-2021-27219-14.patch"
-                                       "glib-CVE-2021-27219-15.patch"
-                                       "glib-CVE-2021-27219-16.patch"
-                                       "glib-CVE-2021-27219-17.patch"
-                                       "glib-CVE-2021-27219-18.patch"
-                                       "glib-CVE-2021-28153.patch")
-                       (origin-patches (package-source glib))))))))
+    (name "glib")
+    (version "2.68.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (string-append "mirror://gnome/sources/"
+                       name "/" (string-take version 4) "/"
+                       name "-" version ".tar.xz"))
+       (sha256
+        (base32 "1sh3h6b734cxhdd1qlzvhxq6rc7k73dsisap5y3s419s9xc4ywv7"))
+       (patches
+        (search-patches "glib-appinfo-watch.patch"
+                        "glib-skip-failing-test.patch"))
+       (modules '((guix build utils)))
+       (snippet
+        '(begin
+           (substitute* "tests/spawn-test.c"
+             (("/bin/sh") "sh"))
+           #t))))
+    (build-system meson-build-system)
+    (outputs '("out"                    ;libraries, locales, etc
+               "static"                 ;static libraries
+               "bin"))                  ;executables; depends on Python
+    (arguments
+     `(#:disallowed-references
+       (,tzdata-for-tests
+        ;; Verify glib-mkenums, gtester, ... use the cross-compiled
+        ;; python.
+        ,@(if (%current-target-system)
+              (map (cut gexp-input <> #:native? #t)
+                   `(,(this-package-native-input "python")
+                     ,(this-package-native-input "python-wrapper")))
+              '()))
+       #:configure-flags '("--default-library=both"
+                           "-Dman=true"
+                           "-Dselinux=disabled")
+       #:phases
+       (modify-phases %standard-phases
+         ;; Needed to pass the test phase on slower ARM and i686 machines.
+         (add-after 'unpack 'increase-test-timeout
+           (lambda _
+             (substitute* "meson.build"
+               (("(test_timeout.*) = ([[:digit:]]+)" all first second)
+                (string-append first " = " second "0")))))
+         (add-after 'unpack 'disable-failing-tests
+           (lambda _
+             (with-directory-excursion "glib/tests"
+               (substitute* '("unix.c" "utils.c")
+                 (("[ \t]*g_test_add_func.*;") "")))
+             (with-directory-excursion "gio/tests"
+               (substitute* '("contenttype.c" "gdbus-address-get-session.c"
+                              "gdbus-peer.c" "appinfo.c" "desktop-app-info.c")
+                 (("[ \t]*g_test_add_func.*;") "")))
+             #t))
+         ;; Python references are not being patched in patch-phase of build,
+         ;; despite using python-wrapper as input. So we patch them manually.
+         ;;
+         ;; These python scripts are both used during build and installed,
+         ;; so at first, use a python from 'native-inputs', not 'inputs'. When
+         ;; cross-compiling, the 'patch-shebangs' phase will replace
+         ;; the native python with a python from 'inputs'.
+         (add-after 'unpack 'patch-python-references
+           (lambda* (#:key native-inputs inputs #:allow-other-keys)
+             (substitute* '("gio/gdbus-2.0/codegen/gdbus-codegen.in"
+                            "glib/gtester-report.in"
+                            "gobject/glib-genmarshal.in"
+                            "gobject/glib-mkenums.in")
+               (("@PYTHON@")
+                (search-input-file (or native-inputs inputs)
+                                   (string-append
+                                    "/bin/python"
+                                    ,(version-major+minor
+                                      (package-version python))))))))
+         (add-before 'check 'pre-check
+           (lambda* (#:key native-inputs inputs outputs #:allow-other-keys)
+             ;; For tests/gdatetime.c.
+             (setenv "TZDIR"
+                     (search-input-directory (or native-inputs inputs)
+                                             "share/zoneinfo"))
+             ;; Some tests want write access there.
+             (setenv "HOME" (getcwd))
+             (setenv "XDG_CACHE_HOME" (getcwd))
+             #t))
+         (add-after 'install 'move-static-libraries
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out"))
+                   (static (assoc-ref outputs "static")))
+               (mkdir-p (string-append static "/lib"))
+               (for-each (lambda (file)
+                           (link file (string-append static "/lib/"
+                                                     (basename file)))
+                           (delete-file file))
+                         (find-files (string-append out "/lib") "\\.a$")))))
+         ;; Meson does not permit the bindir to be outside of prefix.
+         (add-after 'install 'move-bin
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (bin (assoc-ref outputs "bin")))
+               (mkdir-p bin)
+               (rename-file
+                (string-append out "/bin")
+                (string-append bin "/bin"))
+               ;; Do not refer to "bindir", which points to "${prefix}/bin".
+               ;; We don't patch "bindir" to point to "$bin/bin", because that
+               ;; would create a reference cycle between the "out" and "bin"
+               ;; outputs.
+               (substitute*
+                   (list
+                    (string-append out "/lib/pkgconfig/gio-2.0.pc")
+                    (string-append out "/lib/pkgconfig/glib-2.0.pc"))
+                 (("bindir=\\$\\{prefix\\}/bin") "")
+                 (("=\\$\\{bindir\\}/") "="))
+               #t))))))
+    ;; TODO: see above for explanation.
+    ;; #:configure-flags (list (string-append "--bindir="
+    ;;                                        (assoc-ref %outputs "bin")
+    ;;                                        "/bin"))
+    (native-inputs
+     `(("docbook-xsl" ,docbook-xsl)
+       ("gettext" ,gettext-minimal)
+       ("m4" ,m4)                       ; for installing m4 macros
+       ("perl" ,perl)                   ; needed by GIO tests
+       ("pkg-config" ,pkg-config)
+       ("python" ,python)               ; For 'patch-python-references
+       ("python-wrapper" ,python-wrapper)
+       ("tzdata" ,tzdata-for-tests)     ; for tests/gdatetime.c
+       ("xmllint" ,libxml2)
+       ("xsltproc" ,libxslt)))
+    (inputs
+     `(("bash-completion" ,bash-completion)
+       ;; "python", "python-wrapper" and "bash-minimal"
+       ;; are for the 'patch-shebangs' phase, to make
+       ;; sure the installed scripts end up with a correct shebang
+       ;; when cross-compiling.
+       ("python" ,python)
+       ("python-wrapper" ,python-wrapper)
+       ("bash-minimal" ,bash-minimal)
+       ("dbus" ,dbus)
+       ("libelf" ,libelf)))
+    (propagated-inputs
+     `(("libffi" ,libffi) ; in the Requires.private field of gobject-2.0.pc
+       ("pcre" ,pcre)   ; in the Requires.private field of glib-2.0.pc
+       ("util-linux" ,util-linux "lib") ;for libmount
+       ("zlib" ,zlib))) ; in the Requires.private field of glib-2.0.pc
+    (native-search-paths
+     ;; This variable is not really "owned" by GLib, but several related
+     ;; packages refer to it: gobject-introspection's tools use it as a search
+     ;; path for .gir files, and it's also a search path for schemas produced
+     ;; by 'glib-compile-schemas'.
+     (list
+      (search-path-specification
+       (variable "XDG_DATA_DIRS")
+       (files '("share")))
+      ;; To load extra gio modules from glib-networking, etc.
+      (search-path-specification
+       (variable "GIO_EXTRA_MODULES")
+       (files '("lib/gio/modules")))))
+    (search-paths native-search-paths)
+    (synopsis "Low-level core library for GNOME projects")
+    (description "GLib provides the core application building blocks for
+libraries and applications written in C.  It provides the core object system
+used in GNOME, the main loop implementation, and a large set of utility
+functions for strings and common data structures.")
+    (home-page "https://wiki.gnome.org/Projects/GLib")
+    (license license:lgpl2.1+)))
 
 (define-public glib-with-documentation
   ;; glib's doc must be built in a separate package since it requires gtk-doc,
   ;; which in turn depends on glib.
   (package/inherit glib
-    (properties (alist-delete 'hidden? (package-properties glib)))
+    ;; (properties (alist-delete 'hidden? (package-properties glib)))
+    (properties '((hidden? . #t)))
     (outputs (cons "doc" (package-outputs glib))) ; 20 MiB of GTK-Doc reference
     (native-inputs
-     `(("gtk-doc" ,gtk-doc)             ; for the doc
-       ("docbook-xml" ,docbook-xml)
+     `(("docbook-xml-4.2" ,docbook-xml-4.2)
+       ("docbook-xml-4.5" ,docbook-xml)
+       ("gtk-doc" ,gtk-doc)             ; for the doc
        ("libxml2" ,libxml2)
        ,@(package-native-inputs glib)))
     (arguments
@@ -436,62 +363,43 @@ dynamic loading, and an object system.")
         `(cons "-Dgtk_doc=true" ,flags))
        ((#:phases phases)
         `(modify-phases ,phases
+           (add-after 'unpack 'patch-docbook-xml
+             (lambda* (#:key inputs #:allow-other-keys)
+               (with-directory-excursion "docs"
+                 (substitute* (find-files "." "\\.xml$")
+                   (("http://www.oasis-open.org/docbook/xml/4\\.5/")
+                    (string-append (assoc-ref inputs "docbook-xml-4.5")
+                                   "/xml/dtd/docbook/"))
+                   (("http://www.oasis-open.org/docbook/xml/4\\.2/")
+                    (string-append (assoc-ref inputs "docbook-xml-4.2")
+                                   "/xml/dtd/docbook/"))))
+               #t))
            (add-after 'install 'move-doc
              (lambda* (#:key outputs #:allow-other-keys)
-               (let ((out (assoc-ref outputs "out"))
-                     (doc (assoc-ref outputs "doc"))
-                     (html (string-append "/share/gtk-doc")))
-                 (copy-recursively (string-append out html)
-                                   (string-append doc html))
-                 (delete-file-recursively (string-append out html))
+               (let* ((out (assoc-ref outputs "out"))
+                      (doc (assoc-ref outputs "doc"))
+                      (html (string-append "/share/gtk-doc")))
+                 (mkdir-p (string-append doc "/share"))
+                 (rename-file
+                  (string-append out html)
+                  (string-append doc html))
                  #t)))))))))
 
-;;; TODO: Merge into glib as a 'static' output on core-updates.
-(define-public glib-static
-  (hidden-package
-   (package
-     (inherit glib)
-     (name "glib-static")
-     (outputs '("out"))
-     (arguments
-      (substitute-keyword-arguments (package-arguments glib)
-        ((#:configure-flags flags ''())
-         `(cons* "--default-library=static"
-                 "-Dselinux=disabled"
-                 "-Dman=false"
-                 "-Dgtk_doc=false"
-                 "-Dinternal_pcre=false"
-                 ,flags))
-        ((#:phases phases)
-         `(modify-phases ,phases
-            (delete 'move-executables)
-            (replace 'install
-              ;; Only install the static libraries.
-              (lambda* (#:key outputs #:allow-other-keys)
-                (let* ((out (assoc-ref outputs "out"))
-                       (lib (string-append out "/lib")))
-                  (for-each (lambda (f)
-                              (install-file f lib))
-                            (find-files "." "\\.a$"))))))))))))
-
 (define gobject-introspection
   (package
     (name "gobject-introspection")
-    (version "1.62.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri
-        (string-append "mirror://gnome/sources/"
-                       "gobject-introspection/" (version-major+minor version)
-                       "/gobject-introspection-" version ".tar.xz"))
-       (sha256
-        (base32 "18lhglg9v6y83lhqzyifc1z0wrlawzrhzzxx0a3h1g7xaz97xvmi"))
-       (patches
-        (search-patches
-         "gobject-introspection-cc.patch"
-         "gobject-introspection-girepository.patch"
-         "gobject-introspection-absolute-shlib-path.patch"))))
+    (version "1.66.1")
+    (source (origin
+             (method url-fetch)
+             (uri (string-append "mirror://gnome/sources/"
+                   "gobject-introspection/" (version-major+minor version)
+                   "/gobject-introspection-" version ".tar.xz"))
+             (sha256
+              (base32 "078n0q7b6z682mf4irclrksm73cyixq295mqnqifl9plwmgaai6x"))
+             (patches (search-patches
+                       "gobject-introspection-cc.patch"
+                       "gobject-introspection-girepository.patch"
+                       "gobject-introspection-absolute-shlib-path.patch"))))
     (build-system meson-build-system)
     (arguments
      `(#:phases
@@ -508,11 +416,11 @@ dynamic loading, and an object system.")
     (inputs
      `(("bison" ,bison)
        ("flex" ,flex)
-       ("glib" ,glib)
        ("python" ,python-wrapper)
        ("zlib" ,zlib)))
     (propagated-inputs
-     `(;; In practice, GIR users will need libffi when using
+     `(("glib" ,glib)
+       ;; In practice, GIR users will need libffi when using
        ;; gobject-introspection.
        ("libffi" ,libffi)))
     (native-search-paths
@@ -609,7 +517,7 @@ The intltool collection can be used to do these things:
              (let ((prog (string-append (assoc-ref outputs "out")
                                         "/bin/itstool")))
                (wrap-program prog
-                 `("PYTHONPATH" = (,(getenv "PYTHONPATH"))))
+                 `("GUIX_PYTHONPATH" = (,(getenv "GUIX_PYTHONPATH"))))
                #t))))))
     (home-page "http://www.itstool.org")
     (synopsis "Tool to translate XML documents with PO files")
@@ -664,63 +572,149 @@ by GDBus included in Glib.")
 (define libsigc++
   (package
     (name "libsigc++")
-    (version "2.10.3")
+    (version "3.0.6")
     (source (origin
-             (method url-fetch)
-             (uri (string-append "mirror://gnome/sources/libsigc++/"
-                                 (version-major+minor version) "/"
-                                 name "-" version ".tar.xz"))
-             (sha256
-              (base32
-               "11j7j1jv4z58d9s7jvl42fnqa1dzl4idgil9r45cjv1w673dys0b"))))
-    (build-system gnu-build-system)
-    (native-inputs `(("pkg-config" ,pkg-config)
-                     ("m4" ,m4)))
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/libsigc++/"
+                                  (version-major+minor version) "/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1kn57b039lg20182lnchl1ys27vf34brn43f895cal8nc7sdq3mp"))))
+    (build-system meson-build-system)
+    (outputs '("out" "doc"))
+    (arguments
+     `(#:configure-flags
+       (list
+        "-Dbuild-documentation=true")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-docbook-xml
+           (lambda* (#:key inputs #:allow-other-keys)
+             (with-directory-excursion "docs"
+               (substitute* (find-files "." "\\.xml$")
+                 (("http://www.oasis-open.org/docbook/xml/4\\.1\\.2/")
+                  (string-append (assoc-ref inputs "docbook-xml")
+                                 "/xml/dtd/docbook/"))))
+             #t))
+         (add-after 'install 'move-doc
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc (assoc-ref outputs "doc")))
+               (mkdir-p (string-append doc "/share"))
+               (rename-file
+                (string-append out "/share/doc")
+                (string-append doc "/share/doc"))
+               #t))))))
+    (native-inputs
+     `(("docbook-xml" ,docbook-xml-4.1.2)
+       ("docbook-xsl" ,docbook-xsl)
+       ("dot" ,graphviz)
+       ("doxygen" ,doxygen)
+       ("m4" ,m4)
+       ("mm-common" ,mm-common)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("xmllint" ,libxml2)
+       ("xsltproc" ,libxslt)))
+    (inputs
+     `(("boost" ,boost)))
     (home-page "https://libsigcplusplus.github.io/libsigcplusplus/")
     (synopsis "Type-safe callback system for standard C++")
     (description
      "Libsigc++ implements a type-safe callback system for standard C++.  It
-allows you to define signals and to connect those signals to any callback
-function, either global or a member function, regardless of whether it is
-static or virtual.
+     allows you to define signals and to connect those signals to any callback
+     function, either global or a member function, regardless of whether it is
+     static or virtual.
 
-It also contains adaptor classes for connection of dissimilar callbacks and
-has an ease of use unmatched by other C++ callback libraries.")
-    (license license:lgpl2.1+)))
+     It also contains adaptor classes for connection of dissimilar callbacks and
+     has an ease of use unmatched by other C++ callback libraries.")
+    (license license:lgpl3+)))
+
+ (define-public libsigc++-2
+   (package
+    (inherit libsigc++)
+    (name "libsigc++")
+    (version "2.9.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (string-append "mirror://gnome/sources/libsigc++/"
+                       (version-major+minor version)
+                       "/libsigc++-" version ".tar.xz"))
+       (sha256
+        (base32 "0zq963d0sss82q62fdfjs7l9iwbdch51albck18cb631ml0v7y8b"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-docbook-xml
+           (lambda* (#:key inputs #:allow-other-keys)
+             (with-directory-excursion "docs"
+               (substitute* (find-files "." "\\.xml$")
+                 (("http://www.oasis-open.org/docbook/xml/4\\.1\\.2/")
+                  (string-append (assoc-ref inputs "docbook-xml")
+                                 "/xml/dtd/docbook/"))))
+             #t))
+         (add-after 'install 'move-doc
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc (assoc-ref outputs "doc")))
+               (mkdir-p (string-append doc "/share"))
+               (rename-file
+                (string-append out "/share/doc")
+                (string-append doc "/share/doc"))
+               #t))))))))
 
 (define glibmm
   (package
     (name "glibmm")
-    (version "2.62.0")
+    (version "2.68.0")
     (source (origin
-             (method url-fetch)
-             (uri (string-append "mirror://gnome/sources/glibmm/"
-                                 (version-major+minor version)
-                                 "/glibmm-" version ".tar.xz"))
-             (sha256
-              (base32
-               "1ziwx6r7k7wbvg4qq1rgrv8zninapgrmhn1hs6926a3krh9ryr9n"))))
-    (build-system gnu-build-system)
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/glibmm/"
+                                  (version-major+minor version)
+                                  "/glibmm-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0xgkyhb2876mcyyib5rk3ya9aingyj68h02nl22yvkhx35rqbwy1"))))
+    (build-system meson-build-system)
+    (outputs '("out" "doc"))
     (arguments
-     `(#:phases
+     `(#:configure-flags
+       (list
+        "-Dbuild-documentation=true")
+       #:phases
        (modify-phases %standard-phases
-         (add-before 'build 'pre-build
+         (add-after 'unpack 'disable-failing-tests
            (lambda _
-             ;; This test uses /etc/fstab as an example file to read
-             ;; from; choose a better example.
-             (substitute* "tests/giomm_simple/main.cc"
-               (("/etc/fstab")
-                (string-append (getcwd)
-                               "/tests/giomm_simple/main.cc")))
-
-             ;; This test does a DNS lookup, and then expects to be able
-             ;; to open a TLS session; just skip it.
-             (substitute* "tests/giomm_tls_client/main.cc"
-               (("Gio::init.*$")
-                "return 77;\n"))
-             #t)))))
-    (native-inputs `(("pkg-config" ,pkg-config)
-                     ("glib" ,glib "bin")))
+             (substitute* "tests/meson.build"
+               ;; This test uses /etc/fstab as an example file to read
+               ;; from; disable it.
+               (("[ \t]*.*giomm_simple.*$") "")
+               ;; This test does a DNS lookup, and then expects to be able
+               ;; to open a TLS session; just skip it.
+               (("[ \t]*.*giomm_tls_client.*$") ""))
+             #t))
+         (add-after 'install 'move-doc
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc (assoc-ref outputs "doc")))
+               (mkdir-p (string-append doc "/share"))
+               (rename-file
+                (string-append out "/share/doc")
+                (string-append doc "/share/doc"))
+               #t))))))
+    (native-inputs
+     `(("dot" ,graphviz)
+       ("doxygen" ,doxygen)
+       ("glib:bin" ,glib "bin")
+       ("m4" ,m4)
+       ("mm-common" ,mm-common)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("xsltproc" ,libxslt)))
     (propagated-inputs
      `(("libsigc++" ,libsigc++)
        ("glib" ,glib)))
@@ -735,7 +729,7 @@ useful for C++.")
    (package
     (inherit glibmm)
     (name "glibmm")
-    (version "2.64.2")
+    (version "2.64.5")
     (source
      (origin
        (method url-fetch)
@@ -744,10 +738,10 @@ useful for C++.")
                        (version-major+minor version)
                        "/glibmm-" version ".tar.xz"))
        (sha256
-        (base32 "1v6lp23fr2qh4zshcnm28sn29j3nzgsvcqj2nhmrnvamipjq4lm7"))))
+        (base32 "11m37sbx0i18cl17d0fkq0bik4bbzlb5n8kcl651jhci5ipci3sh"))))
      (propagated-inputs
-      `(("libsigc++" ,libsigc++)
-        ("glib" ,glib)))))
+      `(("libsigc++" ,libsigc++-2)
+        ,@(package-propagated-inputs glibmm)))))
 
 (define-public python2-pygobject-2
   (package
@@ -790,7 +784,7 @@ useful for C++.")
 (define-public python-pygobject
   (package
     (name "python-pygobject")
-    (version "3.34.0")
+    (version "3.40.1")
     (source
      (origin
        (method url-fetch)
@@ -799,7 +793,7 @@ useful for C++.")
                            "/pygobject-" version ".tar.xz"))
        (sha256
         (base32
-         "06i7ynnbvgpz0gw09zsjbvhgcp5qz4yzdifw27qjwdazg2mckql7"))
+         "0d80g5kgf2i9cginyhalvb7ibfk9g30yilqzmcsw6h6byj8xbih0"))
        (modules '((guix build utils)))
        (snippet
         '(begin
diff --git a/gnu/packages/gnome-xyz.scm b/gnu/packages/gnome-xyz.scm
index d8997ac538..af920c501d 100644
--- a/gnu/packages/gnome-xyz.scm
+++ b/gnu/packages/gnome-xyz.scm
@@ -916,7 +916,7 @@ track stocks, currencies and cryptocurrencies.")
        ("json-glib" ,json-glib)
        ("jsonrpc-glib" ,jsonrpc-glib)
        ("libgee" ,libgee)
-       ("vala" ,vala-0.50)))
+       ("vala" ,vala)))
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (home-page "https://github.com/benwaffle/vala-language-server")
diff --git a/gnu/packages/gnome.scm b/gnu/packages/gnome.scm
index 54ae54dd26..9df739f59a 100644
--- a/gnu/packages/gnome.scm
+++ b/gnu/packages/gnome.scm
@@ -144,6 +144,7 @@
   #:use-module (gnu packages lirc)
   #:use-module (gnu packages lua)
   #:use-module (gnu packages mail)
+  #:use-module (gnu packages man)
   #:use-module (gnu packages mp3)
   #:use-module (gnu packages multiprecision)
   #:use-module (gnu packages music)
@@ -959,7 +960,7 @@ cloud integration is offered through GNOME Online Accounts.")
                  `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH")))
                  `("GST_PLUGIN_SYSTEM_PATH" = (,(getenv "GST_PLUGIN_SYSTEM_PATH")))
                  `("GRL_PLUGIN_PATH" = (,(getenv "GRL_PLUGIN_PATH")))
-                 `("PYTHONPATH" = (,(getenv "PYTHONPATH") ,pylib))))
+                 `("GUIX_PYTHONPATH" = (,(getenv "GUIX_PYTHONPATH") ,pylib))))
              #t)))))
     (native-inputs
      `(("desktop-file-utils" ,desktop-file-utils)
@@ -1123,21 +1124,15 @@ freedesktop.org desktop notification specification.")
                 "1x8yvjy0yg17qyhmqws8xh2k8dvzrhpwqz7j1cfwzalrb1i9c5g8"))))
     (build-system meson-build-system)
     (arguments
-     `(#:meson ,meson-0.55
-       #:phases
+     `(#:phases
        (modify-phases %standard-phases
          (add-after 'unpack 'patch
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "util/mm-common-prepare.in"
-              (("ln") (string-append (assoc-ref inputs "coreutils")
-                                     "/bin/ln"))
-              (("cp") (string-append (assoc-ref inputs "coreutils")
-                                     "/bin/cp"))
-              (("sed") (string-append (assoc-ref inputs "sed")
-                                      "/bin/sed"))
-              (("cat") (string-append (assoc-ref inputs "coreutils")
-                                      "/bin/cat")))
-             #t)))))
+               (("ln") (search-input-file inputs "/bin/ln"))
+               (("cp") (search-input-file inputs "/bin/cp"))
+               (("sed") (search-input-file inputs "/bin/sed"))
+               (("cat") (search-input-file inputs "/bin/cat"))))))))
     (native-inputs
      `(("coreutils" ,coreutils)
        ("gettext" ,gettext-minimal)
@@ -1429,8 +1424,6 @@ and implementation of UPnP A/V profiles.")
                (base32
                 "1mlw1qgj8nkd9ll6b6h54r1gfdy3zp8a8xqz7qfyfaj85jjgbph7"))))
     (build-system meson-build-system)
-    (arguments
-     `(#:meson ,meson-next))
     (native-inputs
      `(("glib:bin" ,glib "bin")
        ("pkg-config" ,pkg-config)))
@@ -1817,7 +1810,6 @@ either on a local, or remote machine via a number of methods.")
     (build-system glib-or-gtk-build-system)
     (native-inputs
      `(("desktop-file-utils" ,desktop-file-utils)
-       ("gcc" ,gcc-8) ;required for -Wcast-function-type
        ("gettext" ,gettext-minimal)
        ("glib:bin" ,glib "bin")
        ("gobject-introspection" ,gobject-introspection)
@@ -2190,9 +2182,8 @@ offline sources, providing a centralized place for managing your contacts.")
              (system "Xvfb :1 &")
              (setenv "DISPLAY" ":1")
              (setenv "GUIX_LOCPATH"
-                     (string-append (assoc-ref inputs "glibc-locales")
-                                    "/lib/locale"))
-             #t)))))
+                     (search-input-directory inputs
+                                             "lib/locale")))))))
     (native-inputs
      `(("glib:bin" ,glib "bin") ; for gdbus-codegen
        ("glibc-locales" ,glibc-locales) ; for tests
@@ -2675,7 +2666,7 @@ on the GNOME Desktop with a single simple application.")
      `(("glib" ,glib)
        ("gnome-backgrounds" ,gnome-backgrounds)))
     (native-inputs
-     `(("intltool" ,intltool)
+     `(("gettext" ,gettext-minimal)
        ("glib" ,glib "bin")                       ; glib-compile-schemas, etc.
        ("gobject-introspection" ,gobject-introspection)
        ("pkg-config" ,pkg-config)))
@@ -2756,7 +2747,7 @@ and how they are displayed (View).")
                                            (package-version python))
                                          "/site-packages")))
                (wrap-program prog
-                 `("PYTHONPATH" = (,(getenv "PYTHONPATH") ,pylib))
+                 `("GUIX_PYTHONPATH" = (,(getenv "GUIX_PYTHONPATH") ,pylib))
                  `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH"))))
                #t))))))
     (native-inputs
@@ -3274,104 +3265,70 @@ XML/CSS rendering engine.")
               (sha256
                (base32
                 "0kbpp9ksl7977xiga37sk1gdw1r039v6zviqznl7alvvg39yp26i"))))
-    (build-system gnu-build-system)
-    (arguments
-     '(#:configure-flags '("--disable-static")))
-    (native-inputs
-     `(("pkg-config" ,pkg-config)
-       ("gettext" ,gettext-minimal)
-
-       ;; For tests.
-       ("perl" ,perl)
-       ("perl-xml-parser" ,perl-xml-parser)))
-    (inputs
-     `(("zlib" ,zlib)
-       ("bzip2" ,bzip2)))
-    (propagated-inputs
-     `(("gdk-pixbuf" ,gdk-pixbuf)
-       ("glib" ,glib)
-       ("libxml2" ,libxml2)))
-    (home-page "https://www.gnome.org/projects/libgsf")
-    (synopsis "GNOME's Structured File Library")
-    (description
-     "Libgsf aims to provide an efficient extensible I/O abstraction for
-dealing with different structured file formats.")
-
-    ;; LGPLv2.1-only.
-    (license license:lgpl2.1)))
-
-(define-public librsvg
-  (package
-    (name "librsvg")
-    (version "2.40.21")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "mirror://gnome/sources/" name "/"
-                                  (version-major+minor version)  "/"
-                                  name "-" version ".tar.xz"))
-              (sha256
-               (base32
-                "1fljkag2gr7c4k5mn798lgf9903xslz8h51bgvl89nnay42qjqpp"))))
-    (build-system gnu-build-system)
+    (build-system glib-or-gtk-build-system)
+    (outputs '("out" "bin" "doc"))
     (arguments
      `(#:configure-flags
-       (list "--disable-static"
-             "--enable-vala") ; needed for e.g. gnome-mines
+       (list
+        "--disable-static"
+        "--enable-introspection"
+        (string-append "--with-gir-dir="
+                       (assoc-ref %outputs "out")
+                       "/share/gir-"
+                       ,(version-major
+                         (package-version gobject-introspection))
+                       ".0")
+        (string-append "--with-typelib-dir="
+                       (assoc-ref %outputs "out")
+                       "/lib/girepository-"
+                       ,(version-major
+                         (package-version gobject-introspection))
+                       ".0")
+        (string-append "--with-html-dir="
+                       (assoc-ref %outputs "doc")
+                       "/share/gtk-doc/html")
+        "--with-zlib"
+        "--with-bz2")
        #:phases
        (modify-phases %standard-phases
-         (add-before 'configure 'pre-configure
+         (add-after 'unpack 'patch-docbook-xml
            (lambda* (#:key inputs #:allow-other-keys)
-             (substitute* "gdk-pixbuf-loader/Makefile.in"
-               ;; By default the gdk-pixbuf loader is installed under
-               ;; gdk-pixbuf's prefix.  Work around that.
-               (("gdk_pixbuf_moduledir = .*$")
-                (string-append "gdk_pixbuf_moduledir = "
-                               "$(prefix)/lib/gdk-pixbuf-2.0/2.10.0/"
-                                "loaders\n"))
-               ;; Drop the 'loaders.cache' file, it's in gdk-pixbuf+svg.
-               (("gdk_pixbuf_cache_file = .*$")
-                "gdk_pixbuf_cache_file = $(TMPDIR)/loaders.cache\n"))
-             #t))
-         (add-before 'check 'remove-failing-tests
-           (lambda _
-             (with-directory-excursion "tests/fixtures/reftests"
-               (for-each delete-file
-                         '(;; This test fails on i686:
-                           "svg1.1/masking-path-04-b.svg"
-                           ;; This test fails on armhf:
-                           "svg1.1/masking-mask-01-b.svg"
-                           ;; This test fails on aarch64:
-                           "bugs/777834-empty-text-children.svg")))
+             (with-directory-excursion "doc"
+               (substitute* "gsf-docs.xml"
+                 (("http://www.oasis-open.org/docbook/xml/4.5/")
+                  (string-append (assoc-ref inputs "docbook-xml")
+                                 "/xml/dtd/docbook/"))))
              #t)))))
     (native-inputs
-     `(("pkg-config" ,pkg-config)
-       ("vala" ,vala)
-       ("glib" ,glib "bin")                               ; glib-mkenums, etc.
-       ("gobject-introspection" ,gobject-introspection))) ; g-ir-compiler, etc.
+     `(("docbook-xml" ,docbook-xml)
+       ("gettext" ,gettext-minimal)
+       ("gobject-introspection" ,gobject-introspection)
+       ("perl" ,perl)
+       ("perl-xml-parser" ,perl-xml-parser)
+       ("pkg-config" ,pkg-config)
+       ("python" ,python-wrapper)))
     (inputs
-     `(;; XXX: 1.44 causes some test failures, so we stick with 1.42 for
-       ;; this ancient version of librsvg.
-       ("pango" ,pango-1.42)
-       ("libcroco" ,libcroco)
-       ("bzip2" ,bzip2)
-       ("libgsf" ,libgsf)
-       ("libxml2" ,libxml2)))
-    (propagated-inputs
-     ;; librsvg-2.0.pc refers to all of that.
-     `(("cairo" ,cairo)
+     `(("bzip2" ,bzip2)
        ("gdk-pixbuf" ,gdk-pixbuf)
-       ("glib" ,glib)))
-    (home-page "https://wiki.gnome.org/LibRsvg")
-    (synopsis "Render SVG files using Cairo")
-    (description
-     "Librsvg is a C library to render SVG files using the Cairo 2D graphics
-library.")
-    (license license:lgpl2.0+)))
+       ("zlib" ,zlib)))
+    (propagated-inputs
+     `(("glib" ,glib)
+       ("libxml2" ,libxml2)))
+    (synopsis "G Structured File Library")
+    (description "Libgsf aims to provide an efficient extensible I/O abstraction
+for dealing with different structured file formats.")
+    (home-page "https://gitlab.gnome.org/GNOME/libgsf")
+    (license
+     (list
+      ;; Library
+      license:lgpl2.1+
+      ;; Others
+      license:lgpl2.0+))))
 
-(define-public librsvg-next
+(define-public librsvg
   (package
     (name "librsvg")
-    (version "2.50.3")
+    (version "2.50.7")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnome/sources/librsvg/"
@@ -3379,15 +3336,16 @@ library.")
                                   "librsvg-" version ".tar.xz"))
               (sha256
                (base32
-                "0n79i4wj9hm0d3bbn4xvknq5ylhqs16pvhaqr1rxspx9wfc8lad4"))
+                "1g3f8byg5w08fx1bka12mmpl59v6a4q2p827w6m2la6mijq63yzz"))
               (modules '((guix build utils)))
               (snippet
-               '(begin (delete-file-recursively "vendor")
-                       #t))))
+               '(begin (delete-file-recursively "vendor")))))
     (build-system cargo-build-system)
     (outputs '("out" "doc"))
     (arguments
      `(#:install-source? #f
+       ;; XXX: compiling librsvg_c_api hangs forever with 1.49.
+       #:rust ,rust-1.48
        #:modules
        ((guix build cargo-build-system)
         (guix build utils)
@@ -3447,8 +3405,7 @@ library.")
                (substitute* "rsvg-docs.xml"
                  (("http://www.oasis-open.org/docbook/xml/4.3/")
                   (string-append (assoc-ref inputs "docbook-xml")
-                                 "/xml/dtd/docbook/"))))
-             #t))
+                                 "/xml/dtd/docbook/"))))))
          (add-after 'unpack 'prepare-for-build
            (lambda _
              ;; In lieu of #:make-flags
@@ -3456,8 +3413,7 @@ library.")
              ;; Something about the build environment resists building
              ;; successfully with the '--locked' flag.
              (substitute* '("Makefile.am" "Makefile.in")
-               (("--locked") ""))
-             #t))
+               (("--locked") ""))))
          (add-before 'configure 'pre-configure
            (lambda _
              (substitute* "gdk-pixbuf-loader/Makefile.in"
@@ -3469,8 +3425,7 @@ library.")
                                "loaders\n"))
                ;; Drop the 'loaders.cache' file, it's in gdk-pixbuf+svg.
                (("gdk_pixbuf_cache_file = .*$")
-                "gdk_pixbuf_cache_file = $(TMPDIR)/loaders.cache\n"))
-             #t))
+                "gdk_pixbuf_cache_file = $(TMPDIR)/loaders.cache\n"))))
          (add-after 'configure 'gnu-configure
            (lambda* (#:key inputs native-inputs outputs #:allow-other-keys)
              ((assoc-ref gnu:%standard-phases 'configure)
@@ -3481,14 +3436,13 @@ library.")
               (list "--disable-static"
                     "--enable-vala"
                (string-append "--with-html-dir="
-                              (assoc-ref %outputs "doc")
+                              (assoc-ref outputs "doc")
                               "/share/gtk-doc/html")))))
          (add-after 'configure 'dont-vendor-self
            (lambda* (#:key vendor-dir #:allow-other-keys)
              ;; Don't keep the whole tarball in the vendor directory
              (delete-file-recursively
-              (string-append vendor-dir "/" ,name "-" ,version ".tar.xz"))
-             #t))
+              (string-append vendor-dir "/" ,name "-" ,version ".tar.xz"))))
          (replace 'build
            (assoc-ref gnu:%standard-phases 'build))
          (add-before 'check 'ignore-failing-tests
@@ -3514,8 +3468,7 @@ library.")
                (("fn multiple_input_files_not_allowed_for_png_output" all)
                 (string-append "#[ignore] " all))
                (("fn stylesheet_option_error" all)
-                (string-append "#[ignore] " all)))
-             #t))
+                (string-append "#[ignore] " all)))))
          (replace 'check
            (lambda* args
              ((assoc-ref gnu:%standard-phases 'check)
@@ -4335,61 +4288,58 @@ passwords in the GNOME keyring.")
 (define-public vala
   (package
     (name "vala")
-    (version "0.46.5")
+    (version "0.52.0")
     (source (origin
               (method url-fetch)
-              (uri (string-append "mirror://gnome/sources/" name "/"
+              (uri (string-append "mirror://gnome/sources/vala/"
                                   (version-major+minor version) "/"
-                                  name "-" version ".tar.xz"))
+                                  "vala-" version ".tar.xz"))
               (sha256
                (base32
-                "07fv895sp9wq74b20qig7hic0r4ynrr5pfaqba02r44xb794fy0s"))))
-    (build-system gnu-build-system)
+                "12y6p8wdjp01vmfhxg2cgh32xnyqq6ivblvrar9clnj6vc867qhx"))))
+    (build-system glib-or-gtk-build-system)
     (arguments
-     '(#:phases
+     '(#:configure-flags '("--enable-coverage")
+       #:phases
        (modify-phases %standard-phases
+         (add-after 'unpack 'patch-docbook-xml
+           (lambda* (#:key inputs #:allow-other-keys)
+             (with-directory-excursion "doc/manual"
+               (substitute* '("manual.xml" "version.xml.in")
+                 (("http://www.oasis-open.org/docbook/xml/4.4/")
+                  (string-append (assoc-ref inputs "docbook-xml")
+                                 "/xml/dtd/docbook/"))))
+             #t))
          (add-before 'check 'pre-check
-                     (lambda _
-                       (setenv "CC" "gcc")
-                       (substitute* "valadoc/tests/testrunner.sh"
-                         (("export PKG_CONFIG_PATH=" m)
-                          (string-append m "$PKG_CONFIG_PATH:")))
-                       ;; For missing '/etc/machine-id'.
-                       (setenv "DBUS_FATAL_WARNINGS" "0")
-                       #t)))))
+           (lambda _
+             (setenv "CC" "gcc")
+             (substitute* "valadoc/tests/libvaladoc\
+/tests-extra-environment.sh"
+               (("export PKG_CONFIG_PATH=" m)
+                (string-append m "$PKG_CONFIG_PATH:"))))))))
     (native-inputs
-     `(("pkg-config" ,pkg-config)
+     `(("bison" ,bison)
+       ("dbus" ,dbus)                   ; for dbus tests
+       ("docbook-xml" ,docbook-xml-4.4)
+       ("docbook-xsl" ,docbook-xsl)
        ("flex" ,flex)
-       ("bison" ,bison)
-       ("xsltproc" ,libxslt)
-       ("dbus" ,dbus)                                     ; for dbus tests
-       ("gobject-introspection" ,gobject-introspection))) ; for gir tests
-    (inputs
-     `(("graphviz" ,graphviz)))
+       ("gobject-introspection" ,gobject-introspection) ; for gir tests
+       ("help2man" ,help2man)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("xsltproc" ,libxslt)))
     (propagated-inputs
-     `(("glib" ,glib))) ; required by libvala-0.40.pc
+     `(("glib" ,glib)                   ; required by libvala-0.40.pc
+       ("libgvc" ,graphviz)))
     (home-page "https://wiki.gnome.org/Projects/Vala/")
-    (synopsis "Compiler for the GObject type system")
-    (description
-     "Vala is a programming language that aims to bring modern programming
-language features to GNOME developers without imposing any additional runtime
-requirements and without using a different ABI compared to applications and
-libraries written in C.")
+    (synopsis "Compiler using the GObject type system")
+    (description "Vala is a programming language using modern high level
+abstractions without imposing additional runtime requirements and without using
+a different ABI compared to applications and libraries written in C.  Vala uses
+the GObject type system and has additional code generation routines that make
+targeting the GNOME stack simple.")
     (license license:lgpl2.1+)))
 
-(define-public vala-0.50
-  (package
-    (inherit vala)
-    (version "0.50.2")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "mirror://gnome/sources/vala/"
-                                  (version-major+minor version) "/"
-                                  "vala-" version ".tar.xz"))
-              (sha256
-               (base32
-                "1nnf0x6vk0a9p2y6z7jwjfvmlxh3qhj581v381r0y1sxsv35s39c"))))))
-
 (define-public vte
   (package
     (name "vte")
@@ -4585,7 +4535,7 @@ configuration storage systems.")
 (define-public json-glib
   (package
     (name "json-glib")
-    (version "1.4.4")
+    (version "1.6.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnome/sources/" name "/"
@@ -4593,23 +4543,54 @@ configuration storage systems.")
                                   name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0ixwyis47v5bkx6h8a1iqlw3638cxcv57ivxv4gw2gaig51my33j"))))
+                "092g2dyy1hhl0ix9kp33wcab0pg1qicnsv0cj5ms9g9qs336cgd3"))))
     (build-system meson-build-system)
+    (outputs '("out" "doc"))
+    (arguments
+     `(#:glib-or-gtk? #t     ; To wrap binaries and/or compile schemas
+       #:configure-flags
+       (list
+        "-Ddocs=true"
+        "-Dman=true")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-docbook
+           (lambda* (#:key inputs #:allow-other-keys)
+             (with-directory-excursion "doc"
+               (substitute* (find-files "." "\\.xml$")
+                 (("http://www.oasis-open.org/docbook/xml/4\\.3/")
+                  (string-append (assoc-ref inputs "docbook-xml")
+                                 "/xml/dtd/docbook/")))
+               (substitute* "meson.build"
+                 (("http://docbook.sourceforge.net/release/xsl/current/")
+                  (string-append (assoc-ref inputs "docbook-xsl")
+                                 "/xml/xsl/docbook-xsl-1.79.2/"))))
+             #t))
+         (add-after 'install 'move-docs
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc (assoc-ref outputs "doc")))
+               (mkdir-p (string-append doc "/share"))
+               (rename-file
+                (string-append out "/share/gtk-doc")
+                (string-append doc "/share/gtk-doc"))
+               #t))))))
     (native-inputs
-     `(("gettext" ,gettext-minimal)
-       ("glib" ,glib "bin")              ;for glib-mkenums and glib-genmarshal
+     `(("docbook-xml" ,docbook-xml-4.3)
+       ("docbook-xsl" ,docbook-xsl)
+       ("gettext" ,gettext-minimal)
+       ("glib" ,glib "bin")      ;for glib-mkenums and glib-genmarshal
        ("gobject-introspection" ,gobject-introspection)
-       ("pkg-config" ,pkg-config)))
+       ("gtk-doc" ,gtk-doc)
+       ("pkg-config" ,pkg-config)
+       ("xsltproc" ,libxslt)))
     (propagated-inputs
-     `(("glib" ,glib)))                         ;according to json-glib-1.0.pc
+     `(("glib" ,glib)))                 ;according to json-glib-1.0.pc
     (home-page "https://wiki.gnome.org/Projects/JsonGlib")
-    (synopsis "Compiler for the GObject type system")
-    (description
-     "JSON-GLib is a C library based on GLib providing serialization and
-deserialization support for the JavaScript Object Notation (JSON) format
-described by RFC 4627.  It provides parser and generator GObject classes and
-various wrappers for the complex data types employed by JSON, such as arrays
-and objects.")
+    (synopsis "Glib and GObject implementation of JSON")
+    (description "JSON-GLib is a library providing serialization and
+described by RFC 4627.  It implements a full JSON parser and generator using
+GLib and GObject, and integrates JSON with GLib data types.")
     (license license:lgpl2.1+)))
 
 (define-public libxklavier
@@ -4696,7 +4677,7 @@ library.")
 (define-public glib-networking
   (package
     (name "glib-networking")
-    (version "2.62.2")
+    (version "2.68.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnome/sources/glib-networking/"
@@ -4704,23 +4685,26 @@ library.")
                                   "glib-networking-" version ".tar.xz"))
               (sha256
                (base32
-                "0i2mw75297ql72h47vyvff3hqa0kcmqybblj52fqrarb0kfbhi06"))))
+                "0vlzn8jf4sg90cm8xxr28yf66nhf8qy9dl2m4b8w1cr6mn2mw8qb"))))
     (build-system meson-build-system)
-    (arguments
-     `(#:configure-flags '("-Dlibproxy_support=false")))
     (native-inputs
      `(("pkg-config" ,pkg-config)
-       ("intltool" ,intltool)))
+       ("gettext" ,gettext-minimal)))
     (inputs
      `(("glib" ,glib)
        ("gnutls" ,gnutls)
-       ("gsettings-desktop-schemas" ,gsettings-desktop-schemas)))
-    (home-page "https://www.gnome.org")
-    (synopsis "Network-related GIO modules")
-    (description
-     "This package contains various network related extensions for the GIO
-library.")
-    (license license:lgpl2.0+)))
+       ("gsettings-desktop-schemas" ,gsettings-desktop-schemas)
+       ("libproxy" ,libproxy)))
+    (home-page "https://wiki.gnome.org/Projects/GLib")
+    (synopsis "Network extensions for GLib")
+    (description
+     "Glib-networking contains the implementations of certain GLib networking
+features that cannot be implemented directly in GLib itself because of their
+dependencies.  Currently it contains GnuTLS and OpenSSL-based implementations of
+GTlsBackend, a libproxy-based implementation of GProxyResolver,
+GLibproxyResolver, and a GNOME GProxyResolver that uses the proxy information
+from the GSettings schemas in gsettings-desktop-schemas.")
+    (license license:lgpl2.1+)))
 
 (define-public rest
   (package
@@ -4803,49 +4787,10 @@ libxml to ease remote use of the RESTful API.")
              (substitute* "tests/hsts-db-test.c"
                ((".*/hsts-db/subdomains.*") ""))
 
-             ;; Generate a self-signed certificate that has "localhost" as its
-             ;; 'dnsName'.  Failing to do that, and starting with GnuTLS
-             ;; 3.5.12, tests such as "ssl-tests" fail:
-             ;;
-             ;; ERROR:ssl-test.c:406:do_tls_interaction_test: Unexpected status 6 Unacceptable TLS certificate (expected 200 OK)
-             ;;
-             ;; 'certtool' is interactive so we have to pipe it the answers.
-             ;; Reported at <https://bugzilla.gnome.org/show_bug.cgi?id=784696>.
-             (let ((pipe (open-output-pipe "certtool --generate-self-signed \
- --load-privkey tests/test-key.pem --outfile tests/test-cert.pem")))
-               (for-each (lambda (line)
-                           (display line pipe)
-                           (newline pipe))
-                         '(""               ;Common name
-                           ""               ;UID
-                           "Guix"           ;Organizational unit name
-                           "GNU"            ;Organization name
-                           ""               ;Locality name
-                           ""               ;State or province
-                           ""               ;Country
-                           ""               ;subject's domain component (DC)
-                           ""               ;E-mail
-                           ""               ;serial number
-                           "-1"             ;expiration time
-                           "N"              ;belong to authority?
-                           "N"              ;web client certificate?
-                           "N"              ;IPsec IKE?
-                           "Y"              ;web server certificate?
-                           "localhost"      ;dnsName of subject
-                           ""               ;dnsName of subject (end)
-                           ""               ;URI of subject
-                           "127.0.0.1"      ;IP address of subject
-                           ""               ;signing?
-                           ""               ;encryption (RSA)?
-                           ""               ;data encryption?
-                           ""               ;sign OCSP requests?
-                           ""               ;sign code?
-                           ""               ;time stamping?
-                           ""               ;email protection?
-                           ""               ;URI of the CRL distribution point
-                           "y"              ;above info OK?
-                           ))
-               (close-pipe pipe))
+             ;; FIXME: ssl-test fails, starting with
+             ;; glib-networking 2.68.x.
+             (substitute* "tests/meson.build"
+               (("[ \t]*\\['ssl', true, \\[\\]\\],") ""))
              #t))
          (add-after 'install 'move-doc
            (lambda* (#:key outputs #:allow-other-keys)
@@ -4867,7 +4812,6 @@ libxml to ease remote use of the RESTful API.")
        ("vala" ,vala)
        ("php" ,php)
        ("curl" ,curl)
-       ("gnutls" ,gnutls)                         ;for 'certtool'
        ("httpd" ,httpd)))
     (propagated-inputs
      ;; libsoup-2.4.pc refers to all of these (except where otherwise noted)
@@ -5310,9 +5254,7 @@ permission from user.")
          (add-before 'check 'set-locales
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "GUIX_LOCPATH"
-                     (string-append (assoc-ref inputs "glibc-locales")
-                                    "/lib/locale"))
-             #t)))))
+                     (search-input-directory inputs "lib/locale")))))))
     (native-inputs
      `(("glib:bin" ,glib "bin") ; for glib-mkenums
        ("glibc-locales" ,glibc-locales) ; for tests
@@ -6257,12 +6199,12 @@ which can read a large number of file formats.")
                  (gi-typelib-path   (getenv "GI_TYPELIB_PATH"))
                  (gst-plugin-path   (getenv "GST_PLUGIN_SYSTEM_PATH"))
                  (grl-plugin-path   (getenv "GRL_PLUGIN_PATH"))
-                 (python-path       (getenv "PYTHONPATH")))
+                 (python-path       (getenv "GUIX_PYTHONPATH")))
              (wrap-program (string-append out "/bin/rhythmbox")
                `("GI_TYPELIB_PATH"        ":" prefix (,gi-typelib-path))
                `("GST_PLUGIN_SYSTEM_PATH" ":" prefix (,gst-plugin-path))
                `("GRL_PLUGIN_PATH"        ":" prefix (,grl-plugin-path))
-               `("PYTHONPATH"             ":" prefix (,python-path))))
+               `("GUIX_PYTHONPATH"             ":" prefix (,python-path))))
            #t)))))
    (propagated-inputs
     `(("dconf" ,dconf)))
@@ -6365,7 +6307,7 @@ supports playlists, song ratings, and any codecs installed through gstreamer.")
       ("libexif" ,libexif)
       ("libpeas" ,libpeas)
       ("libjpeg" ,libjpeg-turbo)
-      ("librsvg" ,librsvg-next)
+      ("librsvg" ,librsvg)
       ("gsettings-desktop-schemas" ,gsettings-desktop-schemas)
       ("gtk+" ,gtk+)))
    (home-page "https://wiki.gnome.org/Apps/EyeOfGnome")
@@ -6631,7 +6573,7 @@ almost all of them.")
                            ":")))
                (wrap-program (string-append out "/bin/eolie")
                  `("LD_LIBRARY_PATH" ":" prefix (,path))
-                 `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH")))
+                 `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH")))
                  `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH")))))
              #t)))))
     (native-inputs
@@ -6777,7 +6719,7 @@ principles are simplicity and standards compliance.")
             (let ((prog (string-append (assoc-ref outputs "out")
                                        "/bin/d-feet")))
               (wrap-program prog
-                `("PYTHONPATH" = (,(getenv "PYTHONPATH")))
+                `("GUIX_PYTHONPATH" = (,(getenv "GUIX_PYTHONPATH")))
                 `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH"))))
               #t))))))
     (native-inputs
@@ -6814,10 +6756,17 @@ of running programs and invoke methods on those interfaces.")
        (sha256
         (base32 "1bdpgkzawhqmw52l6zx8czzg1ndfgcf1p44m2bxjdpqkc4afcgqc"))))
     (build-system gnu-build-system)
+    (arguments
+     `(#:configure-flags
+       (list
+        "--enable-doc")))
     (native-inputs
-     `(("gettext-minimal" ,gettext-minimal)
+     `(("ducktype" ,mallard-ducktype)
+       ("gettext" ,gettext-minimal)
+       ("intltool" ,intltool)
        ("itstool" ,itstool)
-       ("xmllint" ,libxml2)))
+       ("xmllint" ,libxml2)
+       ("xsltproc" ,libxslt)))
     (synopsis "XSL stylesheets for Yelp")
     (description "Yelp-XSL is a collection of programs and data files to help
 you build, maintain, and distribute documentation.  It provides XSLT stylesheets
@@ -7236,11 +7185,11 @@ javascript engine and the GObject introspection framework.")
              (let ((out               (assoc-ref outputs "out"))
                    (gtksourceview     (assoc-ref inputs "gtksourceview"))
                    (gi-typelib-path   (getenv "GI_TYPELIB_PATH"))
-                   (python-path       (getenv "PYTHONPATH")))
+                   (python-path       (getenv "GUIX_PYTHONPATH")))
                (wrap-program (string-append out "/bin/gedit")
                  ;; For plugins.
                  `("GI_TYPELIB_PATH" ":" prefix (,gi-typelib-path))
-                 `("PYTHONPATH" ":" prefix (,python-path))
+                 `("GUIX_PYTHONPATH" ":" prefix (,python-path))
                  ;; For language-specs.
                  `("XDG_DATA_DIRS" ":" prefix (,(string-append gtksourceview
                                                                "/share")))))
@@ -7603,12 +7552,12 @@ Evolution (hence the name), but is now used by other packages as well.")
          (add-after 'install 'wrap-programs
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
-                   (python-path (getenv "PYTHONPATH"))
+                   (python-path (getenv "GUIX_PYTHONPATH"))
                    (gi-typelib-path (getenv "GI_TYPELIB_PATH")))
               (for-each
                (lambda (prog)
                  (wrap-program prog
-                   `("PYTHONPATH"      ":" prefix (,python-path))
+                   `("GUIX_PYTHONPATH"      ":" prefix (,python-path))
                    `("GI_TYPELIB_PATH" ":" prefix (,gi-typelib-path))))
                (list (string-append out "/bin/caribou-preferences")
                      (string-append out "/libexec/antler-keyboard"))))
@@ -7818,10 +7767,8 @@ services.")
        (modify-phases %standard-phases
          (add-after 'configure 'patch-path
            (lambda* (#:key inputs outputs #:allow-other-keys #:rest args)
-             (let* ((ovpn (string-append (assoc-ref inputs "openvpn")
-                                         "/sbin/openvpn"))
-                    (modprobe (string-append (assoc-ref inputs "kmod")
-                                             "/bin/modprobe"))
+             (let* ((ovpn (search-input-file inputs "/sbin/openvpn"))
+                    (modprobe (search-input-file inputs "/bin/modprobe"))
                     (pretty-ovpn (string-append "\"" ovpn "\"")))
                (for-each
                 (lambda (file)
@@ -7874,10 +7821,8 @@ to virtual private networks (VPNs) via OpenVPN.")
        (modify-phases %standard-phases
          (add-after 'configure 'patch-path
            (lambda* (#:key inputs outputs #:allow-other-keys #:rest args)
-             (let* ((vpnc (string-append (assoc-ref inputs "vpnc")
-                                         "/sbin/vpnc"))
-                    (modprobe (string-append (assoc-ref inputs "kmod")
-                                             "/bin/modprobe"))
+             (let* ((vpnc (search-input-file inputs "/sbin/vpnc"))
+                    (modprobe (search-input-file inputs "/bin/modprobe"))
                     (pretty-ovpn (string-append "\"" vpnc "\"")))
                (substitute* "src/nm-vpnc-service.c"
                     (("\"/usr/local/sbin/vpnc\"") pretty-ovpn)
@@ -7923,10 +7868,9 @@ Compatible with Cisco VPN concentrators configured to use IPsec.")
        (modify-phases %standard-phases
          (add-after 'configure 'patch-path
            (lambda* (#:key inputs outputs #:allow-other-keys #:rest args)
-             (let* ((openconnect (string-append (assoc-ref inputs "openconnect")
-                                         "/sbin/openconnect"))
-                    (modprobe (string-append (assoc-ref inputs "kmod")
-                                             "/bin/modprobe"))
+             (let* ((openconnect (search-input-file inputs
+                                                    "/sbin/openconnect"))
+                    (modprobe (search-input-file inputs "/bin/modprobe"))
                     (pretty-ovpn (string-append "\"" openconnect "\"")))
                (substitute* "src/nm-openconnect-service.c"
                  (("\"/usr(/local)?/s?bin/openconnect\"") pretty-ovpn)
@@ -8463,9 +8407,10 @@ properties, screen resolution, and other GNOME parameters.")
     (build-system meson-build-system)
     (arguments
      `(#:glib-or-gtk? #t
-       #:disallowed-references ((,glib "bin")
-                                ,inkscape ,libxslt
-                                ,ruby-sass)
+       #:disallowed-references ,(list (gexp-input glib "bin")
+                                      (gexp-input inkscape)
+                                      (gexp-input libxslt)
+                                      (gexp-input ruby-sass))
        #:configure-flags
        (list "-Dsystemd=false"
              ;; Otherwise, the RUNPATH will lack the final path component.
@@ -8514,7 +8459,7 @@ properties, screen resolution, and other GNOME parameters.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((out              (assoc-ref outputs "out"))
                    (gi-typelib-path  (getenv "GI_TYPELIB_PATH"))
-                   (python-path      (getenv "PYTHONPATH")))
+                   (python-path      (getenv "GUIX_PYTHONPATH")))
                (wrap-program (string-append out "/bin/gnome-shell")
                  `("GI_TYPELIB_PATH" ":" prefix (,gi-typelib-path))
                  ;; FIXME: gnome-shell loads these libraries with unqualified
@@ -8528,7 +8473,7 @@ properties, screen resolution, and other GNOME parameters.")
                (for-each
                 (lambda (prog)
                   (wrap-program (string-append out "/bin/" prog)
-                    `("PYTHONPATH"      ":" prefix (,python-path))
+                    `("GUIX_PYTHONPATH"      ":" prefix (,python-path))
                     `("GI_TYPELIB_PATH" ":" prefix (,gi-typelib-path))))
                 '("gnome-shell-extension-tool" "gnome-shell-perf-tool"))
                #t)))
@@ -8924,7 +8869,7 @@ is complete it provides a graphical representation of each selected folder.")
          "0zxlwy55fz7i582hch2wnj8zy1kzikssgaix0l2y41ccp5nzpdy2"))))
     (build-system meson-build-system)
     (native-inputs
-     `(("intltool" ,intltool)))
+     `(("gettext" ,gettext-minimal)))
     (home-page "https://gitlab.gnome.org/GNOME/gnome-backgrounds")
     (synopsis "Background images for the GNOME desktop")
     (description
@@ -9312,7 +9257,7 @@ specified duration and save it as a GIF encoded animated image file.")
                                            (package-version python))
                                          "/site-packages")))
                (wrap-program prog
-                 `("PYTHONPATH" = (,(getenv "PYTHONPATH") ,pylib))
+                 `("GUIX_PYTHONPATH" = (,(getenv "GUIX_PYTHONPATH") ,pylib))
                  `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH"))))
                #t))))))
     (native-inputs
@@ -9523,13 +9468,13 @@ desktop.  It supports multiple calendars, month, week and year view.")
                     (lambda* (#:key inputs outputs #:allow-other-keys)
                       (let ((out               (assoc-ref outputs "out"))
                             (gi-typelib-path   (getenv "GI_TYPELIB_PATH"))
-                            (python-path       (getenv "PYTHONPATH")))
+                            (python-path       (getenv "GUIX_PYTHONPATH")))
                         (wrap-program (string-append out "/bin/gnome-todo")
                           ;; XXX: gi plugins are broken.
                           ;; See https://bugzilla.gnome.org/show_bug.cgi?id=787212
                           ;; For plugins.
                           `("GI_TYPELIB_PATH" ":" prefix (,gi-typelib-path))
-                          `("PYTHONPATH" ":" prefix (,python-path))))
+                          `("GUIX_PYTHONPATH" ":" prefix (,python-path))))
                       #t)))))
     (native-inputs
      `(("gettext" ,gettext-minimal)
@@ -10131,8 +10076,8 @@ accessibility infrastructure.")
                    (,(getenv "GI_TYPELIB_PATH")))
                  `("GST_PLUGIN_SYSTEM_PATH" ":" prefix
                    (,(getenv "GST_PLUGIN_SYSTEM_PATH")))
-                 `("PYTHONPATH" ":" prefix
-                   (,(getenv "PYTHONPATH")))))
+                 `("GUIX_PYTHONPATH" ":" prefix
+                   (,(getenv "GUIX_PYTHONPATH")))))
              #t)))))
     (native-inputs
      `(("intltool" ,intltool)
@@ -10190,9 +10135,7 @@ that support the Assistive Technology Service Provider Interface (AT-SPI).")
              ;; Allow Enchant and its Aspell backend to find the en_US
              ;; dictionary.
              (setenv "ASPELL_DICT_DIR"
-                     (string-append (assoc-ref inputs "aspell-dict-en")
-                                    "/lib/aspell"))
-             #t)))))
+                     (search-input-directory inputs "/lib/aspell")))))))
     (inputs
      `(("iso-codes" ,iso-codes)))
     (native-inputs
@@ -10466,7 +10409,7 @@ apply fancy special effects and lets you share the fun with others.")
                                            (package-version python))
                                          "/site-packages")))
                (wrap-program prog
-                 `("PYTHONPATH" = (,(getenv "PYTHONPATH") ,pylib))
+                 `("GUIX_PYTHONPATH" = (,(getenv "GUIX_PYTHONPATH") ,pylib))
                  `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH"))))
                #t))))))
     (native-inputs
@@ -11103,8 +11046,7 @@ repository and commit your work.")
     (inputs
      `(("glib" ,glib)))
     (native-inputs
-     `(("intltool" ,intltool)
-       ("pkg-config" ,pkg-config)))
+     `(("pkg-config" ,pkg-config)))
     (home-page "https://people.gnome.org/~veillard/gamin/")
     (synopsis "File alteration monitor")
     (description
@@ -11533,7 +11475,7 @@ and toolbars.")
                                            (package-version python))
                                          "/site-packages")))
                (wrap-program prog
-                 `("PYTHONPATH" = (,(getenv "PYTHONPATH") ,pylib))
+                 `("GUIX_PYTHONPATH" = (,(getenv "GUIX_PYTHONPATH") ,pylib))
                  `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH"))))
                #t))))))
     (native-inputs
@@ -11597,9 +11539,9 @@ GTK+.  It integrates well with the GNOME desktop environment.")
                (wrap-program prog
                  `("PYTHONPATH" = (,(getenv "PYTHONPATH") ,pylib))
                  `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH")))
-                 `("PATH" prefix (,(string-append (assoc-ref inputs "pandoc")
-                                                  "/bin"))))
-               #t))))))
+                 `("PATH" prefix (,(dirname
+                                    (search-input-file inputs
+                                                       "/bin/pandoc")))))))))))
     (inputs
      `(("glib" ,glib)
        ("gobject-introspection" ,gobject-introspection)
@@ -11657,7 +11599,7 @@ It uses pandoc as back-end for parsing Markdown.")
                     (pygo (string-append
                            (assoc-ref inputs "python-pygobject") site))
                     (python-wrap
-                     `("PYTHONPATH" = (,evdev ,pygo))))
+                     `("GUIX_PYTHONPATH" = (,evdev ,pygo))))
                (wrap-program (string-append out "/bin/" "ratbagctl")
                  python-wrap)
                #t))))))
@@ -12039,7 +11981,7 @@ integrated profiler via Sysprof, debugging support, and more.")
             (let ((prog (string-append (assoc-ref outputs "out")
                                        "/bin/komikku")))
               (wrap-program prog
-                `("PYTHONPATH" = (,(getenv "PYTHONPATH")))
+                `("GUIX_PYTHONPATH" = (,(getenv "GUIX_PYTHONPATH")))
                 `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH"))))
               #t))))))
     (inputs
diff --git a/gnu/packages/gnupg.scm b/gnu/packages/gnupg.scm
index 0eb6aff6e6..4584310e55 100644
--- a/gnu/packages/gnupg.scm
+++ b/gnu/packages/gnupg.scm
@@ -18,6 +18,7 @@
 ;;; Copyright © 2018 Björn Höfling <bjoern.hoefling@bjoernhoefling.de>
 ;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2020 Fredrik Salomonsson <plattfot@posteo.net>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;; Copyright © 2021 Nikita Domnitskii <nikita@domnitskii.me>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -80,13 +81,14 @@
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system perl)
   #:use-module (guix build-system python)
+  #:use-module (ice-9 match)
   #:use-module (guix build-system meson)
   #:use-module (srfi srfi-1))
 
 (define-public libgpg-error
   (package
     (name "libgpg-error")
-    (version "1.37")
+    (version "1.42")
     (source
      (origin
       (method url-fetch)
@@ -94,32 +96,48 @@
                           version ".tar.bz2"))
       (sha256
        (base32
-        "0qwpx8mbc2l421a22l0l1hpzkip9jng06bbzgxwpkkvk5bvnybdk"))))
+        "08syj8mlarww8mh8x3s0x6hjqbnxp2lkg3hab57qqpv1dh7yf1zw"))))
     (build-system gnu-build-system)
     (arguments
      (if (%current-target-system)
-         `(#:modules ((ice-9 match)
-                      (guix build gnu-build-system)
+         `(#:modules ((guix build gnu-build-system)
                       (guix build utils))
            #:phases
            (modify-phases %standard-phases
+             ;; If this is left out, some generated header
+             ;; files will be sprinkled with ‘\c’, which
+             ;; the compiler won't like.
+             (add-after 'unpack 'fix-gen-lock-obj.sh
+               (lambda _
+                 (substitute* "src/gen-lock-obj.sh"
+                   (("if test -n `echo -n`") "if ! test -n `echo -n`"))))
              ;; When cross-compiling, some platform specific properties cannot
              ;; be detected. Create a symlink to the appropriate platform
-             ;; file. See Cross-Compiling section at:
+             ;; file if required. Note that these platform files depend on
+             ;; both the operating system and architecture!
+             ;;
+             ;; See Cross-Compiling section at:
              ;; https://github.com/gpg/libgpg-error/blob/master/README
              (add-after 'unpack 'cross-symlinks
-               (lambda* (#:key target inputs #:allow-other-keys)
-                 (let ((triplet
-                        (match (string-take target
-                                            (string-index target #\-))
-                          ("armhf" "arm-unknown-linux-gnueabi")
-                          ("mips64el" "mips-unknown-linux-gnu")
-                          (x
-                           (string-append x "-unknown-linux-gnu")))))
-                   (symlink
-                    (string-append "lock-obj-pub." triplet ".h")
-                    "src/syscfg/lock-obj-pub.linux-gnu.h"))
-                 #t))))
+               (lambda _
+                 (define (link triplet source)
+                   (symlink (string-append "lock-obj-pub." triplet ".h")
+                            (string-append "src/syscfg/lock-obj-pub."
+                                           source ".h")))
+                 ,(let* ((target (%current-target-system))
+                         (architecture
+                          (string-take target (string-index target #\-))))
+                    (cond ((target-linux? target)
+                           (match architecture
+                             ("armhf"
+                              `(link "arm-unknown-linux-gnueabi" "linux-gnu"))
+                             ("mips64el"
+                              `(link "mips-unknown-linux-gnu" "linux-gnu"))
+                             ;; Don't always link to the "linux-gnu"
+                             ;; configuration, as this is not correct for
+                             ;; all architectures.
+                             (_ #t)))
+                          (#t #t)))))))
          '()))
     (native-inputs `(("gettext" ,gettext-minimal)))
     (home-page "https://gnupg.org")
@@ -136,14 +154,14 @@ Daemon and possibly more in the future.")
 (define-public libgcrypt
   (package
     (name "libgcrypt")
-    (version "1.8.5")
+    (version "1.8.8")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnupg/libgcrypt/libgcrypt-"
                                  version ".tar.bz2"))
              (sha256
               (base32
-                "1hvsazms1bfd769q0ngl0r9g5i4m9mpz9jmvvrdzyzk3rfa2ljiv"))))
+               "1xasrh9zxhgj2n5n8dvpzbwn1mzpmlzy270xhbq2gl8xk2xy4pc9"))))
     (build-system gnu-build-system)
     (propagated-inputs
      `(("libgpg-error-host" ,libgpg-error)))
@@ -175,7 +193,7 @@ generation.")
 (define-public libassuan
   (package
     (name "libassuan")
-    (version "2.5.4")
+    (version "2.5.5")
     (source
      (origin
       (method url-fetch)
@@ -183,7 +201,7 @@ generation.")
                           version ".tar.bz2"))
       (sha256
        (base32
-        "1w7vnnycq4z7gf4bk38pi4hrb8qrrzgfpz3cd7frwldxnfbfx060"))))
+        "1r1lvcp67gn5lfrj1g388sd77ca6qwnmxndirdysd71gk362z34f"))))
     (build-system gnu-build-system)
     (propagated-inputs
      `(("libgpg-error" ,libgpg-error)
@@ -203,7 +221,7 @@ provided.")
 (define-public libksba
   (package
     (name "libksba")
-    (version "1.5.0")
+    (version "1.6.0")
     (source
      (origin
       (method url-fetch)
@@ -212,7 +230,7 @@ provided.")
             version ".tar.bz2"))
       (sha256
        (base32
-        "1fm0mf3wq9fmyi1rmc1vk2fafn6liiw2mgxml3g7ybbb44lz2jmf"))))
+        "12x40y9ihs8nw2xs2y2vjfw90mhikbm5rvabma0dh5frybk87mns"))))
     (build-system gnu-build-system)
     (propagated-inputs
      `(("libgpg-error" ,libgpg-error)))
@@ -451,8 +469,10 @@ gpgpme starting with version 1.7.")
                ;; When cross-compiling, the bash script 'libgcrypt-config'
                ;; must be accessible during the configure phase.
                (setenv "PATH"
-                       (string-append (assoc-ref inputs "libgcrypt")
-                                      "/bin:" (getenv "PATH")))))))))
+                       (string-append
+                        (dirname
+                         (search-input-file inputs "bin/libgcrypt-config"))
+                        ":" (getenv "PATH")))))))))
     (native-inputs
      `(("pkg-config" ,pkg-config)
        ("autoconf" ,autoconf)
@@ -666,8 +686,7 @@ signing, decryption, verification, and key-listing parsing.")
         (add-before
          'build 'set-gpg-file-name
          (lambda* (#:key inputs outputs #:allow-other-keys)
-           (let* ((gpg (string-append (assoc-ref inputs "gpg")
-                                      "/bin/gpg")))
+           (let* ((gpg (search-input-file inputs "/bin/gpg")))
              (substitute* "libpius/constants.py"
                (("/usr/bin/gpg2") gpg))
              #t))))))
@@ -1195,8 +1214,7 @@ over.")
          (delete 'configure) ; no configure script
          (add-before 'install 'hardlink-gnupg
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((gpg (string-append (assoc-ref inputs "gnupg")
-                                       "/bin/gpg")))
+             (let ((gpg (search-input-file inputs "/bin/gpg")))
                (substitute* (find-files "." "jetring-[[:alpha:]]+$")
                  (("gpg -") (string-append gpg " -"))
                  (("\\\"gpg\\\"") (string-append "\"" gpg "\"")))
diff --git a/gnu/packages/gnuzilla.scm b/gnu/packages/gnuzilla.scm
index 4231e2a2d1..0872ca1295 100644
--- a/gnu/packages/gnuzilla.scm
+++ b/gnu/packages/gnuzilla.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013, 2015 Andreas Enge <andreas@enge.fr>
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com>
 ;;; Copyright © 2016, 2017, 2018, 2019, 2021 Efraim Flashner <efraim@flashner.co.il>
@@ -337,8 +337,7 @@ in C/C++.")
                (let ((out (assoc-ref outputs "out")))
                  (setenv "SHELL" (which "sh"))
                  (setenv "CONFIG_SHELL" (which "sh"))
-                 (setenv "AUTOCONF" (string-append (assoc-ref inputs "autoconf")
-                                                   "/bin/autoconf"))
+                 (setenv "AUTOCONF" (which "autoconf"))
                  (apply invoke "./configure"
                         (cons (string-append "--prefix=" out)
                               configure-flags))))))))
@@ -394,8 +393,7 @@ in C/C++.")
                (chdir "run-configure-from-here")
                (setenv "SHELL" (which "sh"))
                (setenv "CONFIG_SHELL" (which "sh"))
-               (setenv "AUTOCONF" (string-append (assoc-ref inputs "autoconf")
-                                                 "/bin/autoconf"))
+               (setenv "AUTOCONF" (which "autoconf"))
                (apply invoke "../js/src/configure"
                       (cons (string-append "--prefix=" out)
                             configure-flags))
@@ -417,7 +415,7 @@ in C/C++.")
 (define-public mozjs-78
   (package
     (inherit mozjs-60)
-    (version "78.5.0")
+    (version "78.10.1")
     (source (origin
               (method url-fetch)
               ;; TODO: Switch to IceCat source once available on ftp.gnu.org.
@@ -426,7 +424,7 @@ in C/C++.")
                                   version "esr.source.tar.xz"))
               (sha256
                (base32
-                "1442yjmwz69hkfcvh8kkb60jf4c9ms0pac04nc3xw2da13v4zxai"))))
+                "0gyg2p6i1wmmfghwg13pp6fj8j8xz6c14f6bbnf4pf0f5c3la7y4"))))
     (arguments
      `(#:imported-modules ,%cargo-utils-modules ;for `generate-all-checksums'
        #:modules ((guix build cargo-utils)
@@ -476,8 +474,7 @@ in C/C++.")
                (chdir "run-configure-from-here")
                (setenv "SHELL" (which "sh"))
                (setenv "CONFIG_SHELL" (which "sh"))
-               (setenv "AUTOCONF" (string-append (assoc-ref inputs "autoconf")
-                                                 "/bin/autoconf"))
+               (setenv "AUTOCONF" (which "autoconf"))
                (apply invoke "../js/src/configure"
                       (cons (string-append "--prefix=" out)
                             configure-flags))
@@ -550,10 +547,10 @@ in C/C++.")
        ("perl" ,perl)
        ("pkg-config" ,pkg-config)
        ("python" ,python-3)
-       ("rust" ,rust)
-       ("cargo" ,rust "cargo")))
+       ("rust" ,rust-1.41)
+       ("cargo" ,rust-1.41 "cargo")))
     (inputs
-     `(("icu4c" ,icu4c-68)
+     `(("icu4c" ,icu4c)
        ("readline" ,readline)
        ("zlib" ,zlib)))))
 
@@ -929,8 +926,8 @@ from forcing GEXP-PROMISE."
 
        ("patch" ,(canonical-package patch))
 
-       ("rust" ,rust-1.41)
-       ("cargo" ,rust-1.41 "cargo")
+       ("rust" ,rust)
+       ("cargo" ,rust "cargo")
        ("rust-cbindgen" ,rust-cbindgen-0.14)
        ("llvm" ,llvm)
        ("clang" ,clang)
@@ -1460,8 +1457,7 @@ standards of the IceCat project.")
                (setenv "CC" "gcc")
                (setenv "MOZ_NOSPAM" "1")
                (setenv "PYTHON"
-                       (string-append (assoc-ref inputs "python2")
-                                      "/bin/python"))
+                       (search-input-file inputs "/bin/python"))
                (setenv "MOZ_BUILD_DATE" ,%icedove-build-id) ; avoid timestamp
                (setenv "LDFLAGS" (string-append "-Wl,-rpath="
                                                 (assoc-ref outputs "out")
@@ -1607,7 +1603,7 @@ standards of the IceCat project.")
               (base32
                "1nnz90h5w9skpdwm8ilndcwfx9d7k9cn6gzh32y4jil95da13813")))))
        ("autoconf" ,autoconf-2.13)
-       ("cargo" ,rust-1.41 "cargo")
+       ("cargo" ,rust "cargo")
        ("clang" ,clang)
        ("llvm" ,llvm)
        ("nasm" ,nasm)
@@ -1616,7 +1612,7 @@ standards of the IceCat project.")
        ("pkg-config" ,pkg-config)
        ("python" ,python)
        ("python2" ,python-2.7)
-       ("rust" ,rust-1.41)
+       ("rust" ,rust)
        ("rust-cbindgen" ,rust-cbindgen-0.14)
        ("which" ,which)
        ("yasm" ,yasm)))
diff --git a/gnu/packages/golang.scm b/gnu/packages/golang.scm
index a830afa022..d3ef39a2e6 100644
--- a/gnu/packages/golang.scm
+++ b/gnu/packages/golang.scm
@@ -2,7 +2,7 @@
 ;;; Copyright © 2016, 2017, 2018, 2019, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Matthew Jordan <matthewjordandevops@yandex.com>
 ;;; Copyright © 2016 Andy Wingo <wingo@igalia.com>
-;;; Copyright © 2016, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016, 2017 Petter <petter@mykolab.ch>
 ;;; Copyright © 2016, 2017, 2018, 2019, 2020 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2017 Sergei Trofimovich <slyfox@inbox.ru>
@@ -1060,11 +1060,11 @@ your Go binary to be later served from an http.FileSystem.")
          (add-before 'build 'prebuild
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((gcclib (string-append (assoc-ref inputs "gcc:lib") "/lib"))
-                    (ld (string-append (assoc-ref inputs "libc") "/lib"))
+                    (ld (dirname (search-input-file inputs "/lib/libc.so")))
                     (loader (car (find-files ld "^ld-linux.+")))
                     (net-base (assoc-ref inputs "net-base"))
                     (tzdata-path
-                     (string-append (assoc-ref inputs "tzdata") "/share/zoneinfo"))
+                     (search-input-directory inputs "share/zoneinfo"))
                     (output (assoc-ref outputs "out")))
 
                ;; Removing net/ tests, which fail when attempting to access
@@ -1140,7 +1140,7 @@ your Go binary to be later served from an http.FileSystem.")
            (lambda* (#:key outputs inputs #:allow-other-keys)
              (let* ((output (assoc-ref outputs "out"))
                     (doc_out (assoc-ref outputs "doc"))
-                    (bash (string-append (assoc-ref inputs "bash") "bin/bash"))
+                    (bash (search-input-file inputs "bin/bash"))
                     (docs (string-append doc_out "/share/doc/" ,name "-" ,version))
                     (tests (string-append
                             (assoc-ref outputs "tests") "/share/" ,name "-" ,version)))
@@ -1208,11 +1208,11 @@ in the style of communicating sequential processes (@dfn{CSP}).")
            (replace 'prebuild
              (lambda* (#:key inputs outputs #:allow-other-keys)
                (let* ((gcclib (string-append (assoc-ref inputs "gcc:lib") "/lib"))
-                      (ld (string-append (assoc-ref inputs "libc") "/lib"))
+                      (ld (dirname (search-input-file inputs "/lib/libc.so")))
                       (loader (car (find-files ld "^ld-linux.+")))
                       (net-base (assoc-ref inputs "net-base"))
                       (tzdata-path
-                       (string-append (assoc-ref inputs "tzdata") "/share/zoneinfo"))
+                       (search-input-directory inputs "share/zoneinfo"))
                       (output (assoc-ref outputs "out")))
 
                  ;; Having the patch in the 'patches' field of <origin> breaks
diff --git a/gnu/packages/gpodder.scm b/gnu/packages/gpodder.scm
index 5a18a16753..3b1db544a2 100644
--- a/gnu/packages/gpodder.scm
+++ b/gnu/packages/gpodder.scm
@@ -94,9 +94,6 @@
                #t)))
          (replace 'check
            (lambda* (#:key tests? #:allow-other-keys)
-             ; The `unittest' target overrides the PYTHONPATH variable.
-             (substitute* "makefile"
-               (("PYTHONPATH=src/") "PYTHONPATH=${PYTHONPATH}:src/"))
              (when tests?
                (invoke "make" "unittest"))))
          ;; 'msgmerge' introduces non-determinism by resetting the
diff --git a/gnu/packages/gps.scm b/gnu/packages/gps.scm
index 0eb4362858..49bc5e8254 100644
--- a/gnu/packages/gps.scm
+++ b/gnu/packages/gps.scm
@@ -281,7 +281,7 @@ such as elevation, speed, heart rate, power, temperature, and gear shifts.")
                                              ":")))
                (for-each (lambda (script)
                            (wrap-program (string-append out "/bin/" script)
-                             `("PYTHONPATH" ":" prefix (,pythonpath))))
+                             `("GUIX_PYTHONPATH" ":" prefix (,pythonpath))))
                          '("gegps" "gpscat" "gpsfake" "gpsprof"
                            "ubxtool" "xgps" "xgpsspeed" "zerk")))
              #t)))))
diff --git a/gnu/packages/graphics.scm b/gnu/packages/graphics.scm
index 70b0c18793..d794847bc7 100644
--- a/gnu/packages/graphics.scm
+++ b/gnu/packages/graphics.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015, 2016 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Tomáš Čech <sleep_walker@gnu.org>
 ;;; Copyright © 2016, 2019 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2016, 2017, 2019 Ricardo Wurmus <rekado@elephly.net>
@@ -556,10 +556,9 @@ typically encountered in feature film production.")
                ;; in the CPATH, so we need to add "$ilmbase/include/OpenEXR/" to
                ;; the CPATH to satisfy the dependency on "half.h".
                (setenv "CPATH"
-                       (string-append (assoc-ref inputs "ilmbase")
-                                      "/include/OpenEXR"
-                                      ":" (or (getenv "CPATH") "")))
-               #t))))))
+                       (string-append
+                        (search-input-directory inputs "include/OpenEXR")
+                        ":" (or (getenv "CPATH") "")))))))))
     (inputs
      `(("boost" ,boost)
        ("jemalloc" ,jemalloc)
@@ -658,10 +657,9 @@ application can be customized via its API for Python scripting.")
                ;; in the CPATH, so we need to add "$ilmbase/include/OpenEXR/" to
                ;; the CPATH to satisfy the dependency on "half.h".
                (setenv "CPATH"
-                       (string-append (assoc-ref inputs "ilmbase")
-                                      "/include/OpenEXR"
-                                      ":" (or (getenv "CPATH") "")))
-               #t))))))
+                       (string-append
+                        (search-input-directory inputs "include/OpenEXR")
+                        ":" (or (getenv "CPATH") "")))))))))
     (inputs
      `(("boost" ,boost)
        ("jemalloc" ,jemalloc)
@@ -1708,8 +1706,7 @@ requirements.")
                   (add-before 'check 'start-xorg-server
                     (lambda* (#:key inputs #:allow-other-keys)
                       ;; The test suite requires a running X server.
-                      (system (string-append (assoc-ref inputs "xorg-server")
-                                             "/bin/Xvfb :1 &"))
+                      (system "Xvfb :1 &")
                       (setenv "DISPLAY" ":1")
                       #t)))))
     (native-inputs
diff --git a/gnu/packages/graphviz.scm b/gnu/packages/graphviz.scm
index 5685864d4c..5fa8d5a80c 100644
--- a/gnu/packages/graphviz.scm
+++ b/gnu/packages/graphviz.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2015, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Theodoros Foradis <theodoros@foradis.org>
 ;;; Copyright © 2017, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
@@ -33,6 +33,7 @@
   #:use-module (guix download)
   #:use-module (guix git-download)
   #:use-module (guix utils)
+  #:use-module (guix gexp)
   #:use-module (gnu packages)
   #:use-module (gnu packages autotools)
   #:use-module (gnu packages bison)
@@ -62,48 +63,48 @@
 (define-public graphviz
   (package
     (name "graphviz")
-    (replacement graphviz/fixed)
-    (version "2.42.3")
+    (version "2.48.0")
     (source (origin
               (method url-fetch)
-              (uri (string-append
-                    "https://www2.graphviz.org/Packages/stable/portable_source/"
-                    "graphviz-" version ".tar.gz"))
+              (uri (string-append "https://gitlab.com/api/v4/projects/4207231"
+                                  "/packages/generic/graphviz-releases/"
+                                  version "/graphviz-" version ".tar.xz"))
               (sha256
                (base32
-                "1pbswjbx3fjdlsxcm7cmlsl5bvaa3d6gcnr0cr8x3c8pag13zbwg"))))
+                "0lgv508zyfdv4wl95avaj58nmjhbvb5za65nhrkl5nn818ayvggn"))))
     (build-system gnu-build-system)
     (arguments
      ;; FIXME: rtest/rtest.sh is a ksh script (!).  Add ksh as an input.
-     '(#:tests? #f
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'install 'move-docs
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let ((out (assoc-ref outputs "out"))
-                   (doc (assoc-ref outputs "doc")))
-               (mkdir-p (string-append doc "/share/graphviz"))
-               (rename-file (string-append out "/share/graphviz/doc")
-                            (string-append doc "/share/graphviz/doc"))
-               #t)))
-         (add-after 'move-docs 'move-guile-bindings
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((out (assoc-ref outputs "out"))
-                    (lib (string-append out "/lib"))
-                    (extdir (string-append lib
-                                           "/guile/2.0/extensions")))
-               (mkdir-p extdir)
-               (rename-file (string-append
-                             lib "/graphviz/guile/libgv_guile.so")
-                            (string-append extdir
-                                           "/libgv_guile.so"))
-               #t))))))
+     (list #:tests? #f
+           #:phases
+           #~(modify-phases %standard-phases
+               (add-after 'install 'move-docs
+                 (lambda* (#:key outputs #:allow-other-keys)
+                   (let ((out (assoc-ref outputs "out"))
+                         (doc (assoc-ref outputs "doc")))
+                     (mkdir-p (string-append doc "/share/graphviz"))
+                     (rename-file (string-append out "/share/graphviz/doc")
+                                  (string-append doc "/share/graphviz/doc")))))
+               (add-after 'move-docs 'move-guile-bindings
+                 (lambda* (#:key outputs #:allow-other-keys)
+                   (let* ((out (assoc-ref outputs "out"))
+                          (lib (string-append out "/lib"))
+                          (extdir (string-append lib "/guile/"
+                                                 #$(version-major+minor
+                                                    (package-version
+                                                     (this-package-input "guile")))
+                                                 "/extensions")))
+                     (mkdir-p extdir)
+                     (rename-file (string-append
+                                   lib "/graphviz/guile/libgv_guile.so")
+                                  (string-append extdir
+                                                 "/libgv_guile.so"))))))))
     (inputs
      `(("libXrender" ,libxrender)
        ("libX11" ,libx11)
        ("gts" ,gts)
-       ("gd" ,gd)                                 ; FIXME: Our GD is too old
-       ("guile" ,guile-2.0)                       ;Guile bindings
+       ("gd" ,gd)
+       ("guile" ,guile-3.0)                       ;Guile bindings
        ("pango" ,pango)
        ("fontconfig" ,fontconfig)
        ("freetype" ,freetype)
@@ -127,15 +128,6 @@ software engineering, database and web design, machine learning, and in visual
 interfaces for other technical domains.")
     (license license:epl1.0)))
 
-(define-public graphviz/fixed
-  (hidden-package
-    (package
-      (inherit graphviz)
-      (source (origin
-                (inherit (package-source graphviz))
-                (patches (append (search-patches "graphviz-CVE-2020-18032.patch")
-                                 (origin-patches (package-source graphviz)))))))))
-
 ;; Older Graphviz needed for pygraphviz.  See
 ;; https://github.com/pygraphviz/pygraphviz/issues/175
 (define-public graphviz-2.38
@@ -158,19 +150,20 @@ interfaces for other technical domains.")
       (arguments
        (substitute-keyword-arguments (package-arguments graphviz)
          ((#:phases phases)
-          `(modify-phases ,phases
-             (add-after 'unpack 'prepare-bootstrap
-               (lambda _
-                 (substitute* "autogen.sh"
-                   (("/bin/sh") (which "sh"))
-                   (("\\$GRAPHVIZ_VERSION_DATE") "0"))
-                 (setenv "CONFIG_SHELL" (which "sh"))
-                 (setenv "SHELL" (which "sh"))
+          #~(modify-phases #$phases
+              (add-after 'unpack 'prepare-bootstrap
+                (lambda _
+                  (substitute* "autogen.sh"
+                    (("/bin/sh") (which "sh"))
+                    (("\\$GRAPHVIZ_VERSION_DATE") "0"))
+                  (setenv "CONFIG_SHELL" (which "sh"))
+                  (setenv "SHELL" (which "sh"))
 
-                 (map make-file-writable (find-files "." ".*"))
-                 #t))
-             (replace 'bootstrap
-               (lambda _ (invoke (which "sh") "autogen.sh" "NOCONFIG") #t))))))
+                  (map make-file-writable (find-files "." ".*"))
+                  #t))
+              (replace 'bootstrap
+                (lambda _
+                  (invoke (which "sh") "autogen.sh" "NOCONFIG") #t))))))
       (native-inputs
        `(("autoconf" ,autoconf)
          ("automake" ,automake)
@@ -221,7 +214,7 @@ visualization tool suite.")
 (define-public python-pygraphviz
   (package
     (name "python-pygraphviz")
-    (version "1.5")
+    (version "1.7")
     (source
      (origin
        (method git-fetch)
@@ -231,18 +224,14 @@ visualization tool suite.")
        (file-name (string-append "pygraphviz-" version "-checkout"))
        (sha256
         (base32
-         "1yldym38m8ckgflln83i88143pd9fjj1vfp23sq39fs6np5g0nzp"))))
+         "0jqc3dzy9n0hn3b99zq8jp53901zpjzvvi5ns5mbaxg8kdrb1lfx"))))
     (build-system python-build-system)
-    (arguments
-     `(#:configure-flags
-       (let ((graphviz (assoc-ref %build-inputs "graphviz")))
-         (list (string-append "--include-path=" graphviz "/include")
-               (string-append "--library-path=" graphviz "/lib")))))
     (inputs
-     `(("graphviz" ,graphviz-2.38)))
+     `(("graphviz" ,graphviz)))
     (native-inputs
      `(("python-nose" ,python-nose)
        ("python-mock" ,python-mock)
+       ("python-pytest" ,python-pytest)
        ("python-doctest-ignore-unicode" ,python-doctest-ignore-unicode)))
     (home-page "https://pygraphviz.github.io")
     (synopsis "Python interface to Graphviz")
@@ -252,9 +241,6 @@ write, and draw graphs using Python to access the Graphviz graph data
 structure and layout algorithms.")
     (license license:bsd-3)))
 
-(define-public python2-pygraphviz
-  (package-with-python2 python-pygraphviz))
-
 (define-public python-uqbar
   (package
     (name "python-uqbar")
@@ -367,8 +353,7 @@ Graphviz and LaTeX.")
                     ":" (assoc-ref inputs "gdk-pixbuf") "/lib/girepository-1.0"
                     ":" (assoc-ref inputs "atk") "/lib/girepository-1.0")))
                `("PATH" ":" prefix
-                 (,(string-append (assoc-ref inputs "graphviz") "/bin"))))
-             #t)))))
+                 (,(dirname (search-input-file inputs "bin/dot"))))))))))
     (inputs
      `(("atk" ,atk)
        ("gdk-pixbuf" ,gdk-pixbuf+svg)
diff --git a/gnu/packages/groovy.scm b/gnu/packages/groovy.scm
index c44a17b59e..73a62e1045 100644
--- a/gnu/packages/groovy.scm
+++ b/gnu/packages/groovy.scm
@@ -827,7 +827,7 @@ and modify groovy's @dfn{Abstract Syntax Tree} (AST)."))))
                      "java-jansi" "java-jline-2"))
                  ;; antlr.jar is present twice in antlr2.  Symlink doesn't like
                  ;; it, so we symlink it here.
-                 (symlink (string-append (assoc-ref inputs "antlr2") "/lib/antlr.jar")
+                 (symlink (search-input-file inputs "/lib/antlr.jar")
                           (string-append out-lib "/antlr.jar"))
                  (for-each
                    (lambda (tool)
diff --git a/gnu/packages/gtk.scm b/gnu/packages/gtk.scm
index d92b9aa3e4..bf4ce3b7b6 100644
--- a/gnu/packages/gtk.scm
+++ b/gnu/packages/gtk.scm
@@ -24,7 +24,7 @@
 ;;; Copyright © 2019 Giacomo Leidi <goodoldpaul@autistici.org>
 ;;; Copyright © 2020 Brendan Tildesley <mail@brendan.scot>
 ;;; Copyright © 2020 Guillaume Le Vaillant <glv@posteo.net>
-;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2021 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2021 Simon Streit <simon@netpanic.org>
 ;;;
@@ -45,6 +45,7 @@
 
 (define-module (gnu packages gtk)
   #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix gexp)
   #:use-module (guix utils)
   #:use-module (guix packages)
   #:use-module (guix download)
@@ -60,6 +61,8 @@
   #:use-module (gnu packages algebra)
   #:use-module (gnu packages autotools)
   #:use-module (gnu packages base)
+  #:use-module (gnu packages boost)
+  #:use-module (gnu packages build-tools)
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
@@ -74,10 +77,14 @@
   #:use-module (gnu packages gl)
   #:use-module (gnu packages glib)
   #:use-module (gnu packages gnome)
+  #:use-module (gnu packages graphviz)
   #:use-module (gnu packages icu4c)
   #:use-module (gnu packages image)
+  #:use-module (gnu packages iso-codes)
   #:use-module (gnu packages libffi)
   #:use-module (gnu packages linux)
+  #:use-module (gnu packages m4)
+  #:use-module (gnu packages man)
   #:use-module (gnu packages pdf)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages perl-check)
@@ -89,6 +96,7 @@
   #:use-module (gnu packages guile-xyz)
   #:use-module (gnu packages cups)
   #:use-module (gnu packages version-control)
+  #:use-module (gnu packages web)
   #:use-module (gnu packages xml)
   #:use-module (gnu packages xorg)
   #:use-module (gnu packages xdisorg)
@@ -99,86 +107,103 @@
 
 (define-public atk
   (package
-   (name "atk")
-   (version "2.34.1")
-   (source (origin
-            (method url-fetch)
-            (uri (string-append "mirror://gnome/sources/" name "/"
-                                (version-major+minor version)  "/"
-                                name "-" version ".tar.xz"))
-            (sha256
-             (base32
-              "1jwp16r6p5z66k4b2v8zlzhyshhwlmyi27ippkrgqr8jsary7w6l"))))
-   (build-system meson-build-system)
-   (propagated-inputs `(("glib" ,glib))) ; required by atk.pc
-   (native-inputs
-    `(("pkg-config" ,pkg-config)
-      ("gettext" ,gettext-minimal)
-      ("glib" ,glib "bin")                               ; glib-mkenums, etc.
-      ("gobject-introspection" ,gobject-introspection))) ; g-ir-compiler, etc.
-   (synopsis "GNOME accessibility toolkit")
-   (description
-    "ATK provides the set of accessibility interfaces that are implemented
+    (name "atk")
+    (version "2.36.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/" name "/"
+                                  (version-major+minor version)  "/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1217cmmykjgkkim0zr1lv5j13733m4w5vipmy4ivw0ll6rz28xpv"))))
+    (build-system meson-build-system)
+    (arguments
+     `(#:glib-or-gtk? #t))  ; To wrap binaries and/or compile schemas
+    (propagated-inputs `(("glib" ,glib))) ; required by atk.pc
+    (native-inputs
+     `(("gettext" ,gettext-minimal)
+       ("glib" ,glib "bin")             ; glib-mkenums, etc.
+       ("gobject-introspection" ,gobject-introspection) ; g-ir-compiler, etc.
+       ("pkg-config" ,pkg-config)))
+    (synopsis "GNOME accessibility toolkit")
+    (description
+     "ATK provides the set of accessibility interfaces that are implemented
 by other toolkits and applications.  Using the ATK interfaces, accessibility
 tools have full access to view and control running applications.")
-   (license license:lgpl2.0+)
-   (home-page "https://developer.gnome.org/atk/")))
+    (license license:lgpl2.1+)
+    (home-page "https://wiki.gnome.org/Accessibility")))
 
 (define-public cairo
   (package
-   (name "cairo")
-   (version "1.16.0")
-   (source (origin
-            (method url-fetch)
-            (uri (string-append "https://cairographics.org/releases/cairo-"
-                                version ".tar.xz"))
-            (patches (search-patches "cairo-CVE-2018-19876.patch"
-                                     "cairo-CVE-2020-35492.patch"))
-            (sha256
-             (base32
-              "0c930mk5xr2bshbdljv005j3j8zr47gqmkry3q6qgvqky6rjjysy"))))
-   (build-system gnu-build-system)
-   (propagated-inputs
-    `(("fontconfig" ,fontconfig)
-      ("freetype" ,freetype)
-      ("glib" ,glib)
-      ("libpng" ,libpng)
-      ("libx11" ,libx11)
-      ("libxext" ,libxext)
-      ("libxrender" ,libxrender)
-      ("pixman" ,pixman)))
-   (inputs
-    `(("ghostscript" ,ghostscript)
-      ("libspectre" ,libspectre)
-      ("poppler" ,poppler)
-      ("xorgproto" ,xorgproto)
-      ("zlib" ,zlib)))
-   (native-inputs
-     `(("pkg-config" ,pkg-config)
-      ("python" ,python-wrapper)))
+    (name "cairo")
+    (version "1.16.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (string-append "https://cairographics.org/releases/cairo-"
+                       version ".tar.xz"))
+       (sha256
+        (base32 "0c930mk5xr2bshbdljv005j3j8zr47gqmkry3q6qgvqky6rjjysy"))
+       (patches (search-patches
+		 "cairo-CVE-2018-19876.patch"
+		 "cairo-CVE-2020-35492.patch"))))
+    (build-system glib-or-gtk-build-system)
+    (outputs '("out" "doc"))
     (arguments
-     `(#:tests? #f  ; see http://lists.gnu.org/archive/html/bug-guix/2013-06/msg00085.html
-       #:configure-flags '("--enable-tee"      ;needed for GNU Icecat
-                           "--enable-xml"      ;for cairo-xml support
-                           "--disable-static")))
-   (synopsis "2D graphics library")
-   (description
-    "Cairo is a 2D graphics library with support for multiple output devices.
-Currently supported output targets include the X Window System (via both
-Xlib and XCB), Quartz, Win32, image buffers, PostScript, PDF, and SVG file
-output.  Experimental backends include OpenGL, BeOS, OS/2, and DirectFB.
-
-Cairo is designed to produce consistent output on all output media while
-taking advantage of display hardware acceleration when available
-eg. through the X Render Extension).
-
-The cairo API provides operations similar to the drawing operators of
-PostScript and PDF.  Operations in cairo including stroking and filling cubic
-Bézier splines, transforming and compositing translucent images, and
-antialiased text rendering.  All drawing operations can be transformed by any
-affine transformation (scale, rotation, shear, etc.).")
-   (license license:lgpl2.1) ; or Mozilla Public License 1.1
-   (home-page "https://cairographics.org/")))
+     `(#:tests? #f ; see http://lists.gnu.org/archive/html/bug-guix/2013-06/msg00085.html
+       #:configure-flags
+       (list
+        "--disable-static"
+        ;; XXX: To be enabled.
+        ;; "--enable-gallium=yes"
+        ;; "--enable-gl=yes"
+        ;; " --enable-glesv2=yes"
+        ;; "--enable-glesv3=yes"
+        ;; "--enable-cogl=yes"
+        ;; "--enable-directfb=yes"
+        ;; "--enable-vg=yes"
+        "--enable-tee=yes"              ;needed for GNU IceCat
+        "--enable-xml=yes"              ;for cairo-xml support
+        (string-append "--with-html-dir="
+                       (assoc-ref %outputs "doc")
+                       "/share/gtk-doc/html"))))
+    (native-inputs
+     `(("gobject-introspection" ,gobject-introspection)
+       ("pkg-config" ,pkg-config)
+       ("python" ,python-wrapper)))
+    (inputs
+     `(("drm" ,libdrm)
+       ("ghostscript" ,ghostscript)
+       ("libspectre" ,libspectre)
+       ("poppler" ,poppler)))
+    (propagated-inputs
+     `( ;; ("cogl" ,cogl)
+       ;; ("directfb" ,directfb)
+       ("fontconfig" ,fontconfig)
+       ("freetype" ,freetype)
+       ("glib" ,glib)
+       ;; ("gtk+" ,gtk+)
+       ("libpng" ,libpng)
+       ;; ("librsvg" ,librsvg)
+       ;; ("opengl" ,mesa)
+       ("pixman" ,pixman)
+       ("x11" ,libx11)
+       ("xcb" ,libxcb)
+       ("xext" ,libxext)
+       ("xrender" ,libxrender)))
+    (synopsis "Multi-platform 2D graphics library")
+    (description "Cairo is a 2D graphics library with support for multiple output
+devices.  Currently supported output targets include the X Window System (via
+both Xlib and XCB), Quartz, Win32, image buffers, PostScript, PDF, and SVG file
+output.  Experimental backends include OpenGL, BeOS, OS/2, and DirectFB.")
+    (home-page "https://cairographics.org/")
+    (license
+     ;; This project is dual-licensed.
+     (list
+      license:lgpl2.1+
+      license:mpl1.1))))
 
 (define-public cairo-sans-poppler
   ;; Variant used to break the dependency cycle between Poppler and Cairo.
@@ -201,15 +226,15 @@ affine transformation (scale, rotation, shear, etc.).")
 (define-public harfbuzz
   (package
    (name "harfbuzz")
-   (version "2.6.4")
+   (version "2.8.2")
    (source (origin
              (method url-fetch)
-             (uri (string-append "https://www.freedesktop.org/software/"
-                                 "harfbuzz/release/harfbuzz-"
+             (uri (string-append "https://github.com/harfbuzz/harfbuzz"
+                                 "/releases/download/" version "/harfbuzz-"
                                  version ".tar.xz"))
              (sha256
               (base32
-               "04iwq13w6zkdhljmsxrzgg4fyh04qnwfn57rgrl9kmijc7cvh4wl"))))
+               "1rvv86wpm3y04fqns1655268rhvhvms469837709v2z2bhwn316m"))))
    (build-system gnu-build-system)
    (outputs '("out"
               "bin")) ; 160K, only hb-view depend on cairo
@@ -253,11 +278,13 @@ affine transformation (scale, rotation, shear, etc.).")
     (build-system gnu-build-system)
     (outputs '("out" "doc"))
     (arguments
-     `(#:configure-flags
-       (list
-        (string-append "--with-html-docdir="
-                       (assoc-ref %outputs "doc")
-                       "/share/doc/datrie/html"))))
+     (list #:configure-flags
+           #~(list (string-append "--with-html-docdir=" #$output:doc
+                                  "/share/doc/datrie/html"))
+
+           ;; Several tests refer to the 'test.tri' file, leading to race
+           ;; conditions when running tests in parallel.
+           #:parallel-tests? #f))
     (native-inputs
      `(("doxygen" ,doxygen)
        ("pkg-config" ,pkg-config)))
@@ -301,54 +328,61 @@ applications.")
 
 (define-public pango
   (package
-   (name "pango")
-   (version "1.44.7")
-   (source (origin
-            (method url-fetch)
-            (uri (string-append "mirror://gnome/sources/pango/"
-                                (version-major+minor version) "/"
-                                name "-" version ".tar.xz"))
-            (patches (search-patches "pango-skip-libthai-test.patch"))
-            (sha256
-             (base32
-              "07qvxa2sk90chp1l12han6vxvy098mc37sdqcznyywyv2g6bd9b6"))))
-   (build-system meson-build-system)
-   (arguments
-    '(#:phases (modify-phases %standard-phases
-                 (add-after 'unpack 'disable-cantarell-tests
-                   (lambda _
-                     (substitute* "tests/meson.build"
-                       ;; XXX FIXME: These tests require "font-cantarell", but
-                       ;; adding it here would introduce a circular dependency.
-                       (("\\[ 'test-harfbuzz'.*") "")
-                       (("\\[ 'test-itemize'.*") "")
-                       (("\\[ 'test-layout'.*") ""))
-                     #t)))))
-   (propagated-inputs
-    ;; These are all in Requires or Requires.private of the '.pc' files.
-    `(("cairo" ,cairo)
-      ("fribidi" ,fribidi)
-      ("fontconfig" ,fontconfig)
-      ("freetype" ,freetype)
-      ("glib" ,glib)
-      ("harfbuzz" ,harfbuzz)
-
-      ;; Some packages, such as Openbox, expect Pango to be built with the
-      ;; optional libxft support.
-      ("libxft" ,libxft)))
-   (inputs
-    `(("zlib" ,zlib)))
-   (native-inputs
-    `(("pkg-config" ,pkg-config)
-      ("glib" ,glib "bin")                               ; glib-mkenums, etc.
-      ("gobject-introspection" ,gobject-introspection))) ; g-ir-compiler, etc.
-   (synopsis "GNOME text and font handling library")
-   (description
-    "Pango is the core text and font handling library used in GNOME
-applications.  It has extensive support for the different writing systems
-used throughout the world.")
-   (license license:lgpl2.0+)
-   (home-page "https://developer.gnome.org/pango/")))
+    (name "pango")
+    (version "1.48.7")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/pango/"
+                                  (version-major+minor version) "/"
+                                  name "-" version ".tar.xz"))
+              (patches (search-patches "pango-skip-libthai-test.patch"))
+              (sha256
+               (base32
+                "1p06sn0jfvk6z3ypp2zym0gk2bddgqch83x9flxslq5bdim2za18"))))
+    (build-system meson-build-system)
+    (arguments
+     '(#:glib-or-gtk? #t     ; To wrap binaries and/or compile schemas
+       #:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'disable-cantarell-tests
+                    (lambda _
+                      (substitute* "tests/meson.build"
+                        ;; XXX FIXME: These tests require "font-cantarell", but
+                        ;; adding it here would introduce a circular dependency.
+                        (("\\[ 'test-layout'.*") "")
+                        (("\\[ 'test-itemize'.*") "")
+                        (("\\[ 'test-font'.*") "")
+                        (("\\[ 'test-harfbuzz'.*") ""))
+                      #t)))))
+    (propagated-inputs
+     ;; These are all in Requires or Requires.private of the '.pc' files.
+     `(("cairo" ,cairo)
+       ("fontconfig" ,fontconfig)
+       ("freetype" ,freetype)
+       ("fribidi" ,fribidi)
+       ("glib" ,glib)
+       ("harfbuzz" ,harfbuzz)
+       ("libthai" ,libthai)
+       ;; Some packages, such as Openbox, expect Pango to be built with the
+       ;; optional libxft support.
+       ("libxft" ,libxft)
+       ("libxrender" ,libxrender)))
+    (inputs
+     `(("zlib" ,zlib)))
+    (native-inputs
+     `(("glib" ,glib "bin")             ; glib-mkenums, etc.
+       ("gobject-introspection" ,gobject-introspection) ; g-ir-compiler, etc.
+       ("help2man" ,help2man)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("python" ,python-wrapper)))
+    (synopsis "Text and font handling library")
+    (description "Pango is a library for laying out and rendering of text, with
+an emphasis on internationalization.  Pango can be used anywhere that text
+layout is needed, though most of the work on Pango so far has been done in the
+context of the GTK+ widget toolkit.  Pango forms the core of text and font
+handling for GTK+-2.x.")
+    (home-page "https://pango.gnome.org/")
+    (license license:lgpl2.0+)))
 
 (define-public pango-1.42
   (package
@@ -368,10 +402,11 @@ used throughout the world.")
                  (add-after 'configure 'disable-layout-test
                    (lambda _
                      ;; This test requires that fontconfig uses bitmap fonts
-                     ;; such as "gs-fonts"; however providing such a package
-                     ;; alone is not enough, as the requirement comes from
-                     ;; deeper in the font stack.  Since this version of Pango
-                     ;; is only used for librsvg, simply disable the test.
+                     ;; such as "font-ghostscript"; however providing such a
+                     ;; package alone is not enough, as the requirement comes
+                     ;; from deeper in the font stack.  Since this version of
+                     ;; Pango is only used for librsvg, simply disable the
+                     ;; test.
                      (substitute* "tests/Makefile"
                        (("test-layout\\$\\(EXEEXT\\)") ""))
                      #t)))))))
@@ -560,64 +595,74 @@ highlighting and other features typical of a source code editor.")
 
 (define-public gdk-pixbuf
   (package
-   (name "gdk-pixbuf")
-   (version "2.40.0")
-   (source (origin
-            (method url-fetch)
-            (uri (string-append "mirror://gnome/sources/" name "/"
-                                (version-major+minor version)  "/"
-                                name "-" version ".tar.xz"))
-            (patches (search-patches "gdk-pixbuf-CVE-2020-29385.patch"))
-            (sha256
-             (base32
-              "1rnlx9yfw970maxi2x6niaxmih5la11q1ilr7gzshz2kk585k0hm"))))
-   (build-system meson-build-system)
-   (arguments
-    `(#:configure-flags '("-Dinstalled_tests=false")
-      #:phases
-      (modify-phases %standard-phases
-        (add-after
-         'unpack 'disable-failing-tests
-         (lambda _
-           (substitute* "tests/meson.build"
-             ;; XXX FIXME: This test fails on armhf machines with:
-             ;; SKIP Not enough memory to load bitmap image
-             ;; ERROR: cve-2015-4491 - too few tests run (expected 4, got 2)
-             ((".*'cve-2015-4491'.*") "")
-             ;; XXX FIXME: This test fails with:
-             ;; ERROR:pixbuf-jpeg.c:74:test_type9_rotation_exif_tag:
-             ;; assertion failed (error == NULL): Data differ
-             ;; (gdk-pixbuf-error-quark, 0)
-             ((".*'pixbuf-jpeg'.*") ""))
-           #t))
-        ;; The slow tests take longer than the specified timeout.
-        ,@(if (any (cute string=? <> (%current-system))
-                   '("armhf-linux" "aarch64-linux"))
-            '((replace 'check
-              (lambda _
-                (invoke "meson" "test" "--timeout-multiplier" "5"))))
-            '()))))
-   (propagated-inputs
-    `(;; Required by gdk-pixbuf-2.0.pc
-      ("glib" ,glib)
-      ("libpng" ,libpng)
-      ;; Used for testing and required at runtime.
-      ("shared-mime-info" ,shared-mime-info)))
-   (inputs
-    `(("libjpeg" ,libjpeg-turbo)
-      ("libtiff" ,libtiff)
-      ("libx11"  ,libx11)))
-   (native-inputs
-     `(("pkg-config" ,pkg-config)
+    (name "gdk-pixbuf")
+    (version "2.42.4")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/" name "/"
+                                  (version-major+minor version)  "/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0k9f9177qxaryaxprwrhqnv5p2gdq4a8i6y05gm98qa8izc5v77y"))))
+    (build-system meson-build-system)
+    (arguments
+     `(#:glib-or-gtk? #t     ; To wrap binaries and/or compile schemas
+       #:configure-flags '("-Dinstalled_tests=false" "-Djasper=true")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-docbook
+           (lambda* (#:key inputs #:allow-other-keys)
+             (with-directory-excursion "docs"
+               (substitute* "meson.build"
+                 (("http://docbook.sourceforge.net/release/xsl/current/")
+                  (string-append (assoc-ref inputs "docbook-xsl")
+                                 "/xml/xsl/docbook-xsl-1.79.2/")))
+               (substitute* (find-files "." "\\.xml$")
+                 (("http://www.oasis-open.org/docbook/xml/4\\.3/")
+                  (string-append (assoc-ref inputs "docbook-xml")
+                                 "/xml/dtd/docbook/"))))
+             #t))
+         (add-before 'configure 'disable-failing-tests
+           (lambda _
+             (substitute* "tests/meson.build"
+               (("\\[ 'pixbuf-fail', \\['conform', 'slow'\\], \\],")
+                ""))
+             #t))
+         ;; The slow tests take longer than the specified timeout.
+         ,@(if (any (cute string=? <> (%current-system))
+                    '("armhf-linux" "aarch64-linux"))
+               '((replace 'check
+                   (lambda _
+                     (invoke "meson" "test" "--timeout-multiplier" "5"))))
+               '()))))
+    (propagated-inputs
+     `( ;; Required by gdk-pixbuf-2.0.pc
+       ("glib" ,glib)
+       ;; Required by gdk-pixbuf-xlib-2.0.pc
+       ("libx11" ,libx11)
+       ;; Used for testing and required at runtime.
+       ("shared-mime-info" ,shared-mime-info)))
+    (inputs
+     `(("jasper" ,jasper)
+       ("libjpeg" ,libjpeg-turbo)
+       ("libpng"  ,libpng)
+       ("libtiff" ,libtiff)))
+    (native-inputs
+     `(("docbook-xml" ,docbook-xml-4.3)
+       ("docbook-xsl" ,docbook-xsl)
        ("gettext" ,gettext-minimal)
-       ("glib" ,glib "bin")                               ; glib-mkenums, etc.
-       ("gobject-introspection" ,gobject-introspection))) ; g-ir-compiler, etc.
-   (synopsis "GNOME image loading and manipulation library")
-   (description
-    "GdkPixbuf is a library for image loading and manipulation developed
-in the GNOME project.")
-   (license license:lgpl2.0+)
-   (home-page "https://developer.gnome.org/gdk-pixbuf/")))
+       ("glib" ,glib "bin")             ; glib-mkenums, etc.
+       ("gobject-introspection" ,gobject-introspection) ; g-ir-compiler, etc.
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("xsltproc" ,libxslt)))
+    (synopsis "Image loading library")
+    (description "GdkPixbuf is a library that loads image data in various
+formats and stores it as linear buffers in memory.  The buffers can then be
+scaled, composited, modified, saved, or rendered.")
+    (home-page "https://wiki.gnome.org/Projects/GdkPixbuf")
+    (license license:lgpl2.1+)))
 
 ;; To build gdk-pixbuf with SVG support, we need librsvg, and librsvg depends
 ;; on gdk-pixbuf, so this new varibale.  Also, librsvg adds 90MiB to the
@@ -629,10 +674,9 @@ in the GNOME project.")
      `(("librsvg" ,librsvg)
        ,@(package-inputs gdk-pixbuf)))
     (arguments
-     '(#:configure-flags '("-Dinstalled-tests=false")
-       #:tests? #f ; tested by the gdk-pixbuf package already
-       #:phases
-       (modify-phases %standard-phases
+     (substitute-keyword-arguments (package-arguments gdk-pixbuf)
+        ((#:phases phases)
+          `(modify-phases ,phases
          (add-after 'install 'register-svg-loader
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((out     (assoc-ref outputs "out"))
@@ -646,78 +690,89 @@ in the GNOME project.")
                (apply invoke
                       gdk-pixbuf-query-loaders
                       "--update-cache"
-                      loaders)))))))
-    (synopsis
-     "GNOME image loading and manipulation library, with SVG support")))
+                      loaders))))))))
+    (synopsis "Image loading library, with SVG support")))
 
 (define-public at-spi2-core
   (package
-   (name "at-spi2-core")
-   (version "2.34.0")
-   (source (origin
-            (method url-fetch)
-            (uri (string-append "mirror://gnome/sources/" name "/"
-                                (version-major+minor version)  "/"
-                                name "-" version ".tar.xz"))
-            (sha256
-             (base32
-              "1ihixwhh3c16q6253qj9gf69741rb2pi51822a4rylsfcyywsafn"))))
-   (build-system meson-build-system)
-   (outputs '("out" "doc"))
-   (arguments
-    '(#:configure-flags
-      (list "-Ddocs=true")
-      #:phases
-      (modify-phases %standard-phases
-        (add-after 'unpack 'set-documentation-path
-          (lambda* (#:key outputs #:allow-other-keys)
-            ;; Ensure that the cross-references point to the "doc" output.
-            (substitute* "doc/libatspi/meson.build"
-              (("docpath =.*")
-               (string-append "docpath = '" (assoc-ref outputs "doc") "/share/gtk-doc/html'\n")))
-            #t))
-        (add-before 'install 'prepare-doc-directory
-          (lambda* (#:key outputs #:allow-other-keys)
-            (mkdir-p (string-append (assoc-ref outputs "doc") "/share"))
-            #t))
-        (add-after 'install 'move-documentation
-          (lambda* (#:key outputs #:allow-other-keys)
-            (let ((out (assoc-ref outputs "out"))
-                  (doc (assoc-ref outputs "doc")))
-              (copy-recursively
-               (string-append out "/share/gtk-doc")
-               (string-append doc "/share/gtk-doc"))
-              (delete-file-recursively
-               (string-append out "/share/gtk-doc")))
-            #t))
-        (add-after 'install 'check
-          (lambda _
-            (setenv "HOME" (getenv "TMPDIR")) ; xfconfd requires a writable HOME
-            ;; Run test-suite under a dbus session.
-            (setenv "XDG_DATA_DIRS"     ; for finding org.xfce.Xfconf.service
-                    (string-append %output "/share"))
-            ;; Don't fail on missing  '/etc/machine-id'.
-            (setenv "DBUS_FATAL_WARNINGS" "0") ;
-            (invoke "dbus-launch" "ninja" "test")))
+    (name "at-spi2-core")
+    (version "2.40.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/" name "/"
+                                  (version-major+minor version)  "/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0a9l6cfxynjn6jcp29d72i75xbkrzs1l5kmqcwmfal801b9sg5j1"))))
+    (build-system meson-build-system)
+    (outputs '("out" "doc"))
+    (arguments
+     '(#:glib-or-gtk? #t     ; To wrap binaries and/or compile schemas
+       #:configure-flags
+       (list "-Ddocs=true")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'set-documentation-path
+           (lambda* (#:key outputs #:allow-other-keys)
+             ;; Ensure that the cross-references point to the "doc" output.
+             (substitute* "doc/libatspi/meson.build"
+               (("docpath =.*")
+                (string-append "docpath = '" (assoc-ref outputs "doc") "/share/gtk-doc/html'\n")))
+             #t))
+         (add-before 'install 'prepare-doc-directory
+           (lambda* (#:key outputs #:allow-other-keys)
+             (mkdir-p (string-append (assoc-ref outputs "doc") "/share"))
+             #t))
+         (add-after 'unpack 'patch-docbook-sgml
+           (lambda* (#:key inputs #:allow-other-keys)
+             (let* ((xmldoc (string-append (assoc-ref inputs "docbook-xml")
+                                           "/xml/dtd/docbook")))
+               (substitute* "doc/libatspi/libatspi-docs.sgml"
+                 (("http://.*/docbookx\\.dtd")
+                  (string-append xmldoc "/docbookx.dtd")))
+               #t)))
+         (add-after 'install 'move-documentation
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out"))
+                   (doc (assoc-ref outputs "doc")))
+               (copy-recursively
+                (string-append out "/share/gtk-doc")
+                (string-append doc "/share/gtk-doc"))
+               (delete-file-recursively
+                (string-append out "/share/gtk-doc")))
+             #t))
+         (add-after 'install 'check
+           (lambda _
+             (setenv "HOME" (getenv "TMPDIR")) ; xfconfd requires a writable HOME
+             ;; Run test-suite under a dbus session.
+             (setenv "XDG_DATA_DIRS" ; for finding org.xfce.Xfconf.service
+                     (string-append %output "/share"))
+             ;; Don't fail on missing  '/etc/machine-id'.
+             (setenv "DBUS_FATAL_WARNINGS" "0") ;
+             (invoke "dbus-launch" "ninja" "test")))
          (delete 'check))))
-   (propagated-inputs
-    ;; atspi-2.pc refers to all these.
-    `(("dbus" ,dbus)
-      ("glib" ,glib)
-      ("libxi" ,libxi)
-      ("libxtst" ,libxtst)))
-   (native-inputs
-    `(("gettext" ,gettext-minimal)
-      ("gobject-introspection" ,gobject-introspection)
-      ("gtk-doc" ,gtk-doc/stable)
-      ("glib" ,glib "bin")
-      ("pkg-config" ,pkg-config)))
-   (synopsis "Assistive Technology Service Provider Interface, core components")
-   (description
-    "The Assistive Technology Service Provider Interface, core components,
+    (propagated-inputs
+     ;; atspi-2.pc refers to all these.
+     `(("dbus" ,dbus)
+       ("glib" ,glib)
+       ("libx11" ,libx11)
+       ("libxi" ,libxi)
+       ("libxtst" ,libxtst)))
+    (native-inputs
+     `(("docbook-xml" ,docbook-xml-4.3)
+       ("gettext" ,gettext-minimal)
+       ("glib" ,glib "bin")
+       ("gobject-introspection" ,gobject-introspection)
+       ("gtk-doc" ,gtk-doc)
+       ("pkg-config" ,pkg-config)
+       ("python" ,python-wrapper)))
+    (synopsis "Assistive Technology Service Provider Interface, core components")
+    (description
+     "The Assistive Technology Service Provider Interface, core components,
 is part of the GNOME accessibility project.")
-   (license license:lgpl2.0+)
-   (home-page "https://projects.gnome.org/accessibility/")))
+    (license license:lgpl2.1+)
+    (home-page "https://wiki.gnome.org/Accessibility/")))
 
 ;;; A minimal variant used to prevent a cycle with Inkscape.
 (define at-spi2-core-minimal
@@ -739,199 +794,273 @@ is part of the GNOME accessibility project.")
 
 (define-public at-spi2-atk
   (package
-   (name "at-spi2-atk")
-   (version "2.34.1")
-   (source (origin
-            (method url-fetch)
-            (uri (string-append "mirror://gnome/sources/" name "/"
-                                (version-major+minor version)  "/"
-                                name "-" version ".tar.xz"))
-            (sha256
-             (base32
-              "05ncp7s5nddjinffs26mcvpbd63vk1m3cv5y530p3plgfhqgjvbp"))))
-   (build-system meson-build-system)
-   (arguments
-    '(#:phases
-      (modify-phases %standard-phases
-        (replace 'check
-                 ;; Run test-suite under a dbus session.
-                 (lambda _
-                   (setenv "DBUS_FATAL_WARNINGS" "0")
-                   (invoke "dbus-launch" "meson" "test"))))))
-   (propagated-inputs
-    ;; TODO: Replace by at-spi2-core-minimal in the next staging window, or
-    ;; when Inkscape 0.92 is upgraded to 1.0 to avoid a cycle.
-    `(("at-spi2-core" ,at-spi2-core))) ; required by atk-bridge-2.0.pc
-   (inputs
-    `(("atk" ,atk)))
-   (native-inputs
-    `(("pkg-config" ,pkg-config)
-      ;; For tests.
-      ("dbus" ,dbus)
-      ("libxml2" ,libxml2)))
-   (synopsis "Assistive Technology Service Provider Interface, ATK bindings")
-   (description
-    "The Assistive Technology Service Provider Interface
+    (name "at-spi2-atk")
+    (version "2.38.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/" name "/"
+                                  (version-major+minor version)  "/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0ks6r9sx27l80n3a7yjmkilxv48cqj183wc7cap3caw2myjhi86g"))))
+    (build-system meson-build-system)
+    (arguments
+     `(#:glib-or-gtk? #t     ; To wrap binaries and/or compile schemas
+       #:phases
+       (modify-phases %standard-phases
+         (replace 'check
+           ;; Run test-suite under a dbus session.
+           (lambda _
+             (setenv "DBUS_FATAL_WARNINGS" "0")
+             (invoke "dbus-launch" "meson" "test"))))))
+    (propagated-inputs
+     ;; TODO: Replace by at-spi2-core-minimal in the next staging window, or
+     ;; when Inkscape 0.92 is upgraded to 1.0 to avoid a cycle.
+     `(("at-spi2-core" ,at-spi2-core))) ; required by atk-bridge-2.0.pc
+    (inputs
+     `(("atk" ,atk)
+       ("glib" ,glib)))
+    (native-inputs
+     `(("dbus" ,dbus)                ; For tests
+       ("gobject-introspection" ,gobject-introspection)
+       ("libxml2" ,libxml2)
+       ("pkg-config" ,pkg-config)))
+    (synopsis "Assistive Technology Service Provider Interface, ATK bindings")
+    (description
+     "The Assistive Technology Service Provider Interface
 is part of the GNOME accessibility project.")
-   (license license:lgpl2.0+)
-   (home-page "https://projects.gnome.org/accessibility/")))
+    (license license:lgpl2.1+)
+    (home-page "https://wiki.gnome.org/Accessibility/")))
 
 (define-public gtk+-2
   (package
-   (name "gtk+")
-   (version "2.24.32")
-   (source (origin
-            (method url-fetch)
-            (uri (string-append "mirror://gnome/sources/" name "/"
-                                (version-major+minor version)  "/"
-                                name "-" version ".tar.xz"))
-            (sha256
-             (base32
-              "0bjq7ja9gwcv6n5q4qkvdjjx40wsdiikksz1zqxvxsm5vlyskj5n"))
-            (patches (search-patches "gtk2-respect-GUIX_GTK2_PATH.patch"
-                                     "gtk2-respect-GUIX_GTK2_IM_MODULE_FILE.patch"
-                                     "gtk2-theme-paths.patch"))))
-   (build-system gnu-build-system)
-   (outputs '("out" "bin" "doc"))
-   (propagated-inputs
-    `(("atk" ,atk)
-      ("gdk-pixbuf" ,gdk-pixbuf+svg)
-      ("pango" ,pango)))
-   (inputs
-    `(("cups" ,cups)
-      ("libxcomposite" ,libxcomposite)
-      ("libxcursor" ,libxcursor)
-      ("libxdamage" ,libxdamage)
-      ("libxi" ,libxi)
-      ("libxinerama" ,libxinerama)
-      ("libxrandr" ,libxrandr)))
-   (native-inputs
-    `(("perl" ,perl)
-      ("gettext" ,gettext-minimal)
-      ("glib" ,glib "bin")
-      ("gobject-introspection" ,gobject-introspection)
-      ("pkg-config" ,pkg-config)
-      ("python-wrapper" ,python-wrapper)))
-   (arguments
-    `(#:configure-flags
-      (list "--with-xinput=yes"
-            (string-append "--with-html-dir="
-                           (assoc-ref %outputs "doc")
-                           "/share/gtk-doc/html"))
-      #:phases
-      (modify-phases %standard-phases
-        (add-before 'configure 'disable-tests
-          (lambda _
-            ;; FIXME: re-enable tests requiring an X server
-            (substitute* "gtk/Makefile.in"
-              (("SUBDIRS = theme-bits . tests") "SUBDIRS = theme-bits ."))
-            #t))
-        (add-after 'install 'remove-cache
-          (lambda* (#:key outputs #:allow-other-keys)
-	    (for-each
+    (name "gtk+")
+    (version "2.24.33")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/" name "/"
+                                  (version-major+minor version)  "/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1nn6kks1zyvb5xikr9y2k7r9bwjy1g4b0m0s66532bclymbwfamc"))
+              (patches (search-patches "gtk2-respect-GUIX_GTK2_PATH.patch"
+                                       "gtk2-respect-GUIX_GTK2_IM_MODULE_FILE.patch"
+                                       "gtk2-theme-paths.patch"))))
+    (build-system gnu-build-system)
+    (outputs '("out" "bin" "doc"))
+    (propagated-inputs
+     `(("atk" ,atk)
+       ("cairo" ,cairo)
+       ;; SVG support is optional and requires librsvg, which pulls in rust.
+       ;; Rust is not supported well on every architecture yet.
+       ("gdk-pixbuf" ,(if (string-prefix? "x86_64" (or (%current-target-system)
+                                                       (%current-system)))
+                          gdk-pixbuf+svg
+                          gdk-pixbuf))
+       ("glib" ,glib)
+       ("pango" ,pango)))
+    (inputs
+     `(("cups" ,cups)
+       ("libx11" ,libx11)
+       ("libxcomposite" ,libxcomposite)
+       ("libxcursor" ,libxcursor)
+       ("libxext" ,libxext)
+       ("libxdamage" ,libxdamage)
+       ("libxi" ,libxi)
+       ("libxinerama" ,libxinerama)
+       ("libxkbcommon" ,libxkbcommon)
+       ("libxrandr" ,libxrandr)
+       ("libxrender" ,libxrender)
+       ("libxshmfence" ,libxshmfence)))
+    (native-inputs
+     `(("gettext" ,gettext-minimal)
+       ("glib" ,glib "bin")
+       ("gobject-introspection" ,gobject-introspection)
+       ("intltool" ,intltool)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("python-wrapper" ,python-wrapper)
+       ("xorg-server" ,xorg-server-for-tests)))
+    (arguments
+     `(#:parallel-tests? #f
+       #:configure-flags
+       (list "--with-xinput=yes"
+             (string-append "--with-html-dir="
+                            (assoc-ref %outputs "doc")
+                            "/share/gtk-doc/html"))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'disable-failing-tests
+           (lambda _
+             (substitute* "gtk/Makefile.in"
+               (("aliasfilescheck\\.sh") ""))
+             (substitute* "gtk/tests/recentmanager.c"
+               (("g_test_add_func \\(\"/recent-manager.*;") ""))
+             (substitute* "gtk/tests/defaultvalue.c"
+               (("return g_test_run\\(\\);") ""))
+             #t))
+         (add-before 'check 'pre-check
+           (lambda _
+             ;; Tests require a running X server.
+             (system "Xvfb :1 +extension GLX &")
+             (setenv "DISPLAY" ":1")
+             ;; Tests write to $HOME.
+             (setenv "HOME" (getcwd))
+             ;; Tests look for $XDG_RUNTIME_DIR.
+             (setenv "XDG_RUNTIME_DIR" (getcwd))
+             ;; For missing '/etc/machine-id'.
+             (setenv "DBUS_FATAL_WARNINGS" "0")
+             #t))
+         (add-after 'install 'remove-cache
+           (lambda* (#:key outputs #:allow-other-keys)
+	     (for-each
 	      delete-file
 	      (find-files (assoc-ref outputs "out") "immodules.cache"))
-            #t)))))
-   (native-search-paths
-    (list (search-path-specification
-           (variable "GUIX_GTK2_PATH")
-           (files '("lib/gtk-2.0")))))
-   (synopsis "Cross-platform toolkit for creating graphical user interfaces")
-   (description
-    "GTK+, or the GIMP Toolkit, is a multi-platform toolkit for creating
+             #t)))))
+    (native-search-paths
+     (list (search-path-specification
+            (variable "GUIX_GTK2_PATH")
+            (files '("lib/gtk-2.0")))))
+    (search-paths native-search-paths)
+    (synopsis "Cross-platform toolkit for creating graphical user interfaces")
+    (description
+     "GTK+, or the GIMP Toolkit, is a multi-platform toolkit for creating
 graphical user interfaces.  Offering a complete set of widgets, GTK+ is
 suitable for projects ranging from small one-off tools to complete
 application suites.")
-   (license license:lgpl2.0+)
-   (home-page "https://www.gtk.org/")))
+    (license license:lgpl2.0+)
+    (home-page "https://www.gtk.org/")))
 
 (define-public gtk+
-  (package (inherit gtk+-2)
-   (name "gtk+")
-   (version "3.24.24")
-   (source (origin
-            (method url-fetch)
-            (uri (string-append "mirror://gnome/sources/" name "/"
-                                (version-major+minor version)  "/"
-                                name "-" version ".tar.xz"))
-            (sha256
-             (base32
-              "12ipk1d376bai9v820qzhxba93kkh5abi6mhyqr4hwjvqmkl77fc"))
-            (patches (search-patches "gtk3-respect-GUIX_GTK3_PATH.patch"
-                                     "gtk3-respect-GUIX_GTK3_IM_MODULE_FILE.patch"))))
-   (propagated-inputs
-    `(("at-spi2-atk" ,at-spi2-atk)
-      ("atk" ,atk)
-      ("gdk-pixbuf" ,gdk-pixbuf+svg)
-      ("libepoxy" ,libepoxy)
-      ("libxcursor" ,libxcursor)
-      ("libxi" ,libxi)
-      ("libxinerama" ,libxinerama)
-      ("libxkbcommon" ,libxkbcommon)
-      ("libxdamage" ,libxdamage)
-      ("libxrandr" ,libxrandr)
-      ("mesa" ,mesa)
-      ("pango" ,pango)
-      ("wayland" ,wayland)
-      ("wayland-protocols" ,wayland-protocols)))
-   (inputs
-    `(("libxml2" ,libxml2)
-      ;; XXX: colord depends on mozjs (through polkit), which fails on
-      ;;      on non-intel systems now.
-      ;;("colord" ,colord)
-      ("cups" ,cups)                            ;for printing support
-      ;; XXX: rest depends on p11-kit, which fails on mips64el now.
-      ;;("rest" ,rest)
-      ("json-glib" ,json-glib)))
-   (native-inputs
-    `(("perl" ,perl)
-      ("glib" ,glib "bin")
-      ("gettext" ,gettext-minimal)
-      ("pkg-config" ,pkg-config)
-      ("gobject-introspection" ,gobject-introspection)
-      ("python-wrapper" ,python-wrapper)
-      ;; By using a special xorg-server for GTK+'s tests, we reduce the impact
-      ;; of updating xorg-server directly on the master branch.
-      ("xorg-server" ,xorg-server-for-tests)))
-   (arguments
-    `(#:disallowed-references (,xorg-server-for-tests)
-      ;; 47 MiB goes to "out" (24 of which is locale data!), and 26 MiB goes
-      ;; to "doc".
-      #:configure-flags (list (string-append "--with-html-dir="
-                                             (assoc-ref %outputs "doc")
-                                             "/share/gtk-doc/html")
-                              ;; The header file <gdk/gdkwayland.h> is required
-                              ;; by gnome-control-center
-                              "--enable-wayland-backend"
-                              ;; This is necessary to build both backends.
-                              "--enable-x11-backend"
-                              ;; This enables the HTML5 websocket backend.
-                              "--enable-broadway-backend")
-      #:phases (modify-phases %standard-phases
-        (add-before 'configure 'pre-configure
-          (lambda _
-            ;; Disable most tests, failing in the chroot with the message:
-            ;; D-Bus library appears to be incorrectly set up; failed to read
-            ;; machine uuid: Failed to open "/etc/machine-id": No such file or
-            ;; directory.
-            ;; See the manual page for dbus-uuidgen to correct this issue.
-            (substitute* "testsuite/Makefile.in"
-              (("SUBDIRS = gdk gtk a11y css reftests")
-               "SUBDIRS = gdk"))
-            #t))
-        (add-after 'install 'move-desktop-files
-          ;; Move desktop files into 'bin' to avoid cycle references.
-          (lambda* (#:key outputs #:allow-other-keys)
-            (let ((out (assoc-ref outputs "out"))
-                  (bin (assoc-ref outputs "bin")))
-              (mkdir-p (string-append bin "/share"))
-              (rename-file (string-append out "/share/applications")
-                           (string-append bin "/share/applications"))
-              #t))))))
-   (native-search-paths
-    (list (search-path-specification
-           (variable "GUIX_GTK3_PATH")
-           (files '("lib/gtk-3.0")))))))
+  (package
+    (inherit gtk+-2)
+    (name "gtk+")
+    (version "3.24.27")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://gnome/sources/" name "/"
+                           (version-major+minor version)  "/"
+                           name "-" version ".tar.xz"))
+       (sha256
+        (base32
+         "09ksflq5j257bf5zn8q2nnf2flicg9qqgfy7za79z7rkf1shc77p"))
+       (patches (search-patches "gtk3-respect-GUIX_GTK3_PATH.patch"
+                                "gtk3-respect-GUIX_GTK3_IM_MODULE_FILE.patch"))))
+    (propagated-inputs
+     `(("atk" ,atk)
+       ("at-spi2-atk" ,at-spi2-atk)
+       ("cairo" ,cairo)
+       ("fribidi" ,fribidi)
+       ("fontconfig" ,fontconfig)
+       ("freetype" ,freetype)
+       ;; SVG support is optional and requires librsvg, which pulls in rust.
+       ;; Rust is not supported well on every architecture yet.
+       ("gdk-pixbuf" ,(if (string-prefix? "x86_64" (or (%current-target-system)
+                                                       (%current-system)))
+                          gdk-pixbuf+svg
+                          gdk-pixbuf))
+       ("glib" ,glib)
+       ("libcloudproviders" ,libcloudproviders)
+       ("libepoxy" ,libepoxy)
+       ("libx11" ,libx11)
+       ("libxcomposite" ,libxcomposite)
+       ("libxcursor" ,libxcursor)
+       ("libxdamage" ,libxdamage)
+       ("libxext" ,libxext)
+       ("libxfixes" ,libxfixes)
+       ("libxi" ,libxi)
+       ("libxinerama" ,libxinerama)
+       ("libxkbcommon" ,libxkbcommon)
+       ("libxrandr" ,libxrandr)
+       ("libxrender" ,libxrender)
+       ("mesa" ,mesa)
+       ("pango" ,pango)
+       ("wayland" ,wayland)
+       ("wayland-protocols" ,wayland-protocols)))
+    (inputs
+     `(("colord" ,colord)
+       ("cups" ,cups)
+       ("graphene" ,graphene)
+       ("harfbuzz" ,harfbuzz)
+       ("iso-codes" ,iso-codes)
+       ("json-glib" ,json-glib)
+       ("libxml2" ,libxml2)
+       ("rest" ,rest)))
+    (native-inputs
+     `(("docbook-xml" ,docbook-xml-4.1.2)
+       ("gettext" ,gettext-minimal)
+       ("glib" ,glib "bin")
+       ("gobject-introspection" ,gobject-introspection)
+       ("hicolor-icon-theme" ,hicolor-icon-theme)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("python-wrapper" ,python-wrapper)
+       ("sassc" ,sassc)
+       ;; By using a special xorg-server for GTK+'s tests, we reduce the impact
+       ;; of updating xorg-server directly on the master branch.
+       ("xorg-server" ,xorg-server-for-tests)
+       ("xsltproc" ,libxslt)))
+    (arguments
+     `(#:disallowed-references (,xorg-server-for-tests)
+       ;; 47 MiB goes to "out" (24 of which is locale data!), and 26 MiB goes
+       ;; to "doc".
+       #:configure-flags (list (string-append "--with-html-dir="
+                                              (assoc-ref %outputs "doc")
+                                              "/share/gtk-doc/html")
+                               "--enable-cloudproviders"
+                               ;; The header file <gdk/gdkwayland.h> is required
+                               ;; by gnome-control-center
+                               "--enable-wayland-backend"
+                               ;; This is necessary to build both backends.
+                               "--enable-x11-backend"
+                               ;; This enables the HTML5 websocket backend.
+                               "--enable-broadway-backend")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'disable-failing-tests
+           (lambda _
+             (substitute* "testsuite/gtk/Makefile.in"
+               (("builderparser cellarea check-icon-names check-cursor-names")
+                "builderparser cellarea check-cursor-names")
+               (("notify no-gtk-init object objects-finalize papersize rbtree")
+                "no-gtk-init papersize rbtree")
+               (("stylecontext templates textbuffer textiter treemodel treepath")
+                "stylecontext textbuffer textiter treemodel treepath"))
+             (substitute* "testsuite/a11y/Makefile.in"
+               (("accessibility-dump tree-performance text children derive")
+                "tree-performance text children derive"))
+             (substitute* "testsuite/reftests/Makefile.in"
+               (("TEST_PROGS = gtk-reftest")
+                "TEST_PROGS = "))
+             #t))
+         (add-before 'check 'pre-check
+           (lambda _
+             ;; Tests require a running X server.
+             (system "Xvfb :1 +extension GLX &")
+             (setenv "DISPLAY" ":1")
+             ;; Tests write to $HOME.
+             (setenv "HOME" (getcwd))
+             ;; Tests look for $XDG_RUNTIME_DIR.
+             (setenv "XDG_RUNTIME_DIR" (getcwd))
+             ;; For missing '/etc/machine-id'.
+             (setenv "DBUS_FATAL_WARNINGS" "0")
+             #t))
+         (add-after 'install 'move-desktop-files
+           ;; Move desktop files into 'bin' to avoid cycle references.
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out"))
+                   (bin (assoc-ref outputs "bin")))
+               (mkdir-p (string-append bin "/share"))
+               (rename-file (string-append out "/share/applications")
+                            (string-append bin "/share/applications"))
+               #t))))))
+    (native-search-paths
+     (list (search-path-specification
+            (variable "GUIX_GTK3_PATH")
+            (files '("lib/gtk-3.0")))))))
 
 ;;;
 ;;; Guile bindings.
@@ -1248,23 +1377,45 @@ guile-gnome-platform (GNOME developer libraries), and guile-gtksourceview.")
 (define-public cairomm
   (package
     (name "cairomm")
-    (version "1.12.2")
+    (version "1.16.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://www.cairographics.org/releases/"
-                                  name "-" version ".tar.gz"))
+                                  name "-" version ".tar.xz"))
               (sha256
                (base32
-                "16fmigxsaz85c3lgcls7biwyz8zy8c8h3jndfm54cxxas3a7zi25"))))
-    (build-system gnu-build-system)
+                "1ya4y7qa000cjawqwswbqv26y5icfkmhs5iiiil4dxgrqn91923y"))))
+    (build-system meson-build-system)
+    (outputs '("out" "doc"))
     (arguments
-     ;; The examples lack -lcairo.
-     '(#:make-flags '("LDFLAGS=-lcairo")))
-    (native-inputs `(("pkg-config" ,pkg-config)))
+     `(#:glib-or-gtk? #t     ; To wrap binaries and/or compile schemas
+       #:configure-flags
+       (list
+        "-Dbuild-documentation=true"
+        "-Dboost-shared=true")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'install 'move-doc
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc (assoc-ref outputs "doc")))
+               (mkdir-p (string-append doc "/share"))
+               (rename-file
+                (string-append out "/share/doc")
+                (string-append doc "/share/doc"))
+               #t))))))
+    (native-inputs
+     `(("boost" ,boost)
+       ("dot" ,graphviz)
+       ("doxygen" ,doxygen)
+       ("mm-common" ,mm-common)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("xsltproc" ,libxslt)))
+    (inputs
+     `(("fontconfig" ,fontconfig)))
     (propagated-inputs
      `(("libsigc++" ,libsigc++)
-       ("freetype" ,freetype)
-       ("fontconfig" ,fontconfig)
        ("cairo" ,cairo)))
     (home-page "https://cairographics.org/")
     (synopsis "C++ bindings to the Cairo 2D graphics library")
@@ -1273,37 +1424,61 @@ guile-gnome-platform (GNOME developer libraries), and guile-gtksourceview.")
 library.")
     (license license:lgpl2.0+)))
 
-(define-public cairomm-1.13
+(define-public cairomm-1.14
   (package
     (inherit cairomm)
     (name "cairomm")
-    (version "1.13.1")
+    (version "1.14.2")
     (source
      (origin
        (method url-fetch)
        (uri
         (string-append "https://www.cairographics.org/releases/"
-                       name "-" version ".tar.gz"))
+                       name "-" version ".tar.xz"))
        (sha256
-        (base32 "1xlfl0fm5mgv53lr8xjv2kqsk3bz67qkk6qzvbrqmbvbvvbqp9wp"))))
+        (base32 "1qwdj9xw1w651kqwh82nipbryimm1ir5n3c6q34nphsx576bj9h1"))))
     (propagated-inputs
-     `(("cairo" ,cairo)
-       ("sigc++" ,libsigc++)))))
+     `(("libsigc++" ,libsigc++-2)
+       ,@(package-propagated-inputs cairomm)))))
 
 (define-public pangomm
   (package
     (name "pangomm")
-    (version "2.42.0")
+    (version "2.48.0")
     (source (origin
-             (method url-fetch)
-             (uri (string-append "mirror://gnome/sources/" name "/"
-                                 (version-major+minor version)  "/"
-                                 name "-" version ".tar.xz"))
-             (sha256
-              (base32
-               "0mmzxp3wniaafkxr30sb22mq9x44xckb5d60h1bl99lkzxks0vfa"))))
-    (build-system gnu-build-system)
-    (native-inputs `(("pkg-config" ,pkg-config)))
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/" name "/"
+                                  (version-major+minor version)  "/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0y2vyp6azvhrii6rzs89kr08wg8z1p562awyr812131zqdsd83ly"))))
+    (build-system meson-build-system)
+    (outputs '("out" "doc"))
+    (arguments
+     `(#:glib-or-gtk? #t     ; To wrap binaries and/or compile schemas
+       #:configure-flags
+       (list
+        "-Dbuild-documentation=true")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'install 'move-doc
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc (assoc-ref outputs "doc")))
+               (mkdir-p (string-append doc "/share"))
+               (rename-file
+                (string-append out "/share/doc")
+                (string-append doc "/share/doc"))
+               #t))))))
+    (native-inputs
+     `(("dot" ,graphviz)
+       ("doxygen" ,doxygen)
+       ("m4" ,m4)
+       ("mm-common" ,mm-common)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("xsltproc" ,libxslt)))
     (propagated-inputs
      `(("cairo" ,cairo)
        ("cairomm" ,cairomm)
@@ -1316,11 +1491,11 @@ library.")
 library.")
     (license license:lgpl2.1+)))
 
-(define-public pangomm-2.42
+(define-public pangomm-2.46
   (package
     (inherit pangomm)
     (name "pangomm")
-    (version "2.42.1")
+    (version "2.46.0")
     (source
      (origin
        (method url-fetch)
@@ -1329,102 +1504,186 @@ library.")
                        (version-major+minor version)  "/"
                        name "-" version ".tar.xz"))
        (sha256
-        (base32 "03zli5amizhv9bfklwfq7xyf0b5dagchx1lnz9f0v1rhk69h9gql"))))
+        (base32 "06zczkaxf5p5kjgnzrfylzi40w9a8lxpndgs7rpn12qrsq27sy6k"))))
     (propagated-inputs
-     `(("cairomm" ,cairomm-1.13)
+     `(("cairomm" ,cairomm-1.14)
        ("glibmm" ,glibmm-2.64)
        ("pango" ,pango)))))
 
 (define-public atkmm
   (package
     (name "atkmm")
-    (version "2.28.0")
+    (version "2.36.0")
     (source (origin
-             (method url-fetch)
-             (uri (string-append "mirror://gnome/sources/" name "/"
-                                 (version-major+minor version)  "/"
-                                 name "-" version ".tar.xz"))
-             (sha256
-              (base32
-               "0fnxrspxkhhbrjphqrpvl3zjm66n50s4cywrrrwkhbflgy8zqk2c"))))
-    (build-system gnu-build-system)
-    (native-inputs `(("pkg-config" ,pkg-config)))
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/" name "/"
+                                  (version-major+minor version)  "/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0wwr0663jrqx2klsasffd9wpk3kqnwisj1y3ahdkjdk5hzrsjgy9"))))
+    (build-system meson-build-system)
+    (outputs '("out" "doc"))
+    (arguments
+     `(#:glib-or-gtk? #t     ; To wrap binaries and/or compile schemas
+       #:configure-flags
+       (list
+        "-Dbuild-documentation=true")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'install 'move-doc
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc (assoc-ref outputs "doc")))
+               (mkdir-p (string-append doc "/share"))
+               (rename-file
+                (string-append out "/share/doc")
+                (string-append doc "/share/doc"))
+               #t))))))
+    (native-inputs
+     `(("dot" ,graphviz)
+       ("doxygen" ,doxygen)
+       ("m4" ,m4)
+       ("mm-common" ,mm-common)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("xsltproc" ,libxslt)))
     (propagated-inputs
      `(("glibmm" ,glibmm) ("atk" ,atk)))
-    (home-page "https://www.gtkmm.org")
-    (synopsis "C++ interface to the ATK accessibility library")
-    (description
-     "ATKmm provides a C++ programming interface to the ATK accessibility
-toolkit.")
-    (license license:lgpl2.1+)))
+    (synopsis "C++ bindings for ATK")
+    (description "ATKmm is the C++ binding for the ATK library.")
+    (home-page "https://wiki.gnome.org/Accessibility")
+    (license
+     (list
+      ;; Library
+      license:lgpl2.1+
+      ;; Tools
+      license:gpl2+))))
+
+(define-public atkmm-2.28
+  (package
+    (inherit atkmm)
+    (name "atkmm")
+    (version "2.28.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (string-append "mirror://gnome/sources/" name "/"
+                       (version-major+minor version)  "/"
+                       name "-" version ".tar.xz"))
+       (sha256
+        (base32 "1b8vycqzr3lfvk2l73f4kk74hj48081zbh9r1r2ilr3h8xh7cs0i"))))
+    (propagated-inputs
+     `(("glibmm" ,glibmm-2.64)
+       ,@(package-propagated-inputs atkmm)))))
 
 (define-public gtkmm
   (package
     (name "gtkmm")
-    (version "3.24.2")
-    (source (origin
-             (method url-fetch)
-             (uri (string-append "mirror://gnome/sources/" name "/"
-                                 (version-major+minor version)  "/"
-                                 name "-" version ".tar.xz"))
-             (sha256
-              (base32
-               "1hxdnhavjyvbcpxhd5z17l9fj4182028s66lc0s16qqqrldhjwbd"))))
-    (build-system gnu-build-system)
-    (native-inputs `(("pkg-config" ,pkg-config)
-                     ("glib" ,glib "bin")        ;for 'glib-compile-resources'
-                     ("xorg-server" ,xorg-server-for-tests)))
+    (version "3.24.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (string-append "mirror://gnome/sources/" name "/"
+                       (version-major+minor version)  "/"
+                       name "-" version ".tar.xz"))
+       (sha256
+        (base32 "0hv7pviln4cpjvpz7m7ga5krcsbibqzixdcn0dwzpz0cx71p3swv"))))
+    (build-system meson-build-system)
+    (outputs '("out" "doc"))
+    (arguments
+     `(#:configure-flags '("-Dbuild-documentation=true")
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'check 'pre-check
+           (lambda _
+             ;; Tests require a running X server.
+             (system "Xvfb :1 +extension GLX &")
+             (setenv "DISPLAY" ":1")
+             ;; For missing '/etc/machine-id'.
+             (setenv "DBUS_FATAL_WARNINGS" "0")
+             #t))
+         (add-after 'install 'move-doc
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc (assoc-ref outputs "doc")))
+               (mkdir-p (string-append doc "/share"))
+               (rename-file
+                (string-append out "/share/doc")
+                (string-append doc "/share/doc"))
+               #t))))))
+    (native-inputs
+     `(("dot" ,graphviz)
+       ("doxygen" ,doxygen)
+       ("glib:bin" ,glib "bin")
+       ("m4" ,m4)
+       ("mm-common" ,mm-common)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("xsltproc" ,libxslt)
+       ("xorg-server" ,xorg-server-for-tests)))
     (propagated-inputs
-     `(("pangomm" ,pangomm)
-       ("cairomm" ,cairomm)
-       ("atkmm" ,atkmm)
+     `(("atkmm" ,atkmm-2.28)
+       ("cairomm" ,cairomm-1.14)
+       ("glibmm" ,glibmm)
        ("gtk+" ,gtk+)
-       ("glibmm" ,glibmm)))
-    (arguments
-     `(#:disallowed-references (,xorg-server-for-tests)
-       #:phases (modify-phases %standard-phases
-                  (add-before 'check 'run-xvfb
-                    (lambda* (#:key inputs #:allow-other-keys)
-                      (let ((xorg-server (assoc-ref inputs "xorg-server")))
-                        ;; Tests such as 'object_move/test' require a running
-                        ;; X server.
-                        (system (string-append xorg-server "/bin/Xvfb :1 &"))
-                        (setenv "DISPLAY" ":1")
-                        ;; Don't fail because of the missing /etc/machine-id.
-                        (setenv "DBUS_FATAL_WARNINGS" "0")
-                        #t))))))
+       ("pangomm" ,pangomm-2.46)))
+    (synopsis "C++ Interfaces for GTK+ and GNOME")
+    (description "GTKmm is the official C++ interface for the popular GUI
+library GTK+.  Highlights include typesafe callbacks, and a comprehensive set of
+widgets that are easily extensible via inheritance.  You can create user
+interfaces either in code or with the Glade User Interface designer, using
+libglademm.  There's extensive documentation, including API reference and a
+tutorial.")
     (home-page "https://gtkmm.org/")
-    (synopsis
-     "C++ interface to the GTK+ graphical user interface library")
-    (description
-     "gtkmm is the official C++ interface for the popular GUI library GTK+.
-Highlights include typesafe callbacks, and a comprehensive set of widgets that
-are easily extensible via inheritance.  You can create user interfaces either
-in code or with the Glade User Interface designer, using libglademm.  There's
-extensive documentation, including API reference and a tutorial.")
-    (license license:lgpl2.1+)))
-
+    (license
+     (list
+      ;; Library
+      license:lgpl2.1+
+      ;; Tools
+      license:gpl2+))))
 
 (define-public gtkmm-2
-  (package (inherit gtkmm)
+  (package
+    (inherit gtkmm)
     (name "gtkmm")
     (version "2.24.5")
-    (source (origin
-             (method url-fetch)
-             (uri (string-append "mirror://gnome/sources/" name "/"
-                                 (version-major+minor version)  "/"
-                                 name "-" version ".tar.xz"))
-             (sha256
-              (base32
-               "0wkbzvsx4kgw16f6xjdc1dz7f77ldngdila4yi5lw2zrgcxsb006"))))
-    (arguments '())
-    (native-inputs `(("pkg-config" ,pkg-config)))
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (string-append "mirror://gnome/sources/" name "/"
+                       (version-major+minor version)  "/"
+                       name "-" version ".tar.xz"))
+       (sha256
+        (base32 "0wkbzvsx4kgw16f6xjdc1dz7f77ldngdila4yi5lw2zrgcxsb006"))))
+    (build-system gnu-build-system)
+    (arguments
+     (substitute-keyword-arguments (package-arguments gtkmm)
+       ((#:modules modules %gnu-build-system-modules)
+        `((srfi srfi-1)
+          ,@modules))
+       ((#:configure-flags flags)
+        `(fold delete
+               ,flags
+               '("-Dbuild-documentation=true")))))
+    (native-inputs
+     `(("dot" ,graphviz)
+       ("doxygen" ,doxygen)
+       ("m4" ,m4)
+       ("mm-common" ,mm-common)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("xsltproc" ,libxslt)
+       ("xorg-server" ,xorg-server-for-tests)))
     (propagated-inputs
-     `(("pangomm" ,pangomm)
-       ("cairomm" ,cairomm)
-       ("atkmm" ,atkmm)
+     `(("atkmm" ,atkmm-2.28)
+       ("cairomm" ,cairomm-1.14)
+       ("glibmm" ,glibmm-2.64)
        ("gtk+" ,gtk+-2)
-       ("glibmm" ,glibmm)))))
+       ("pangomm" ,pangomm-2.46)))))
 
 (define-public gtksourceviewmm
   (package
@@ -1461,7 +1720,7 @@ printing and other features typical of a source code editor.")
 (define-public python-pycairo
   (package
     (name "python-pycairo")
-    (version "1.19.1")
+    (version "1.20.0")
     (source
      (origin
       (method url-fetch)
@@ -1469,7 +1728,7 @@ printing and other features typical of a source code editor.")
                           version "/pycairo-" version ".tar.gz"))
       (sha256
        (base32
-        "111fav9m1iagw3nh2ws2vzkjh34r97yl7rdlpvsngsqg521k251c"))))
+        "1326aa2ybhhhrvz3n4p22z5sic25m016ddb5yq0hvbprnw6a35an"))))
     (build-system python-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)
@@ -1788,7 +2047,7 @@ information.")
 (define-public gtk-doc
   (package
     (name "gtk-doc")
-    (version "1.28")
+    (version "1.32")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnome/sources/" name "/"
@@ -1796,8 +2055,9 @@ information.")
                                   name "-" version ".tar.xz"))
               (sha256
                (base32
-                "05apmwibkmn1icx05l8aw241lhymcx01zvk5i499cb150bijj7li"))))
-    (build-system gnu-build-system)
+                "0z4h1dggpimygdp719l457jvqilps4qcfpk31jmj3jqpzcsg03ny"))))
+    (build-system glib-or-gtk-build-system)
+    (outputs '("out" "help"))
     (arguments
      `(#:parallel-tests? #f
        #:phases
@@ -1805,31 +2065,22 @@ information.")
          (add-after 'unpack 'patch-gtk-doc-scan
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "gtk-doc.xsl"
-              (("http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl")
-               (string-append (assoc-ref inputs "docbook-xsl")
-                              "/xml/xsl/docbook-xsl-"
-                              ,(package-version docbook-xsl)
-                              "/html/chunk.xsl"))
-              (("http://docbook.sourceforge.net/release/xsl/current/common/en.xml")
-               (string-append (assoc-ref inputs "docbook-xsl")
-                              "/xml/xsl/docbook-xsl-"
-                              ,(package-version docbook-xsl)
-                              "/common/en.xml")))
+               (("http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl")
+                (string-append (assoc-ref inputs "docbook-xsl")
+                               "/xml/xsl/docbook-xsl-"
+                               ,(package-version docbook-xsl)
+                               "/html/chunk.xsl"))
+               (("http://docbook.sourceforge.net/release/xsl/current/common/en.xml")
+                (string-append (assoc-ref inputs "docbook-xsl")
+                               "/xml/xsl/docbook-xsl-"
+                               ,(package-version docbook-xsl)
+                               "/common/en.xml")))
              #t))
-         (add-after 'patch-gtk-doc-scan 'patch-test-out
+         (add-after 'unpack 'disable-failing-tests
            (lambda _
-             ;; sanity.sh counts the number of status lines.  Since our
-             ;; texlive regenerates the fonts every time and the font
-             ;; generator metafont outputs a lot of extra lines, this
-             ;; test would always fail.  Disable it for now.
              (substitute* "tests/Makefile.in"
-              (("empty.sh sanity.sh") "empty.sh"))
-             #t))
-         (add-before 'build 'set-HOME
-           (lambda _
-             ;; FIXME: dblatex with texlive-union does not find the built
-             ;; metafonts, so it tries to generate them in HOME.
-             (setenv "HOME" "/tmp")
+               (("annotations.sh bugs.sh empty.sh fail.sh gobject.sh program.sh")
+                ""))
              #t))
          (add-before 'configure 'fix-docbook
            (lambda* (#:key inputs #:allow-other-keys)
@@ -1851,36 +2102,53 @@ information.")
              (let ((out (assoc-ref outputs "out")))
                (for-each (lambda (prog)
                            (wrap-program prog
-                             `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH")))))
+                             `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH")))))
                          (find-files (string-append out "/bin")))
                #t))))
        #:configure-flags
        (list (string-append "--with-xml-catalog="
                             (assoc-ref %build-inputs "docbook-xml")
-                            "/xml/dtd/docbook/catalog.xml"))))
+                            "/xml/dtd/docbook/catalog.xml")
+             (string-append "--with-help-dir="
+                            (assoc-ref %outputs "help")
+                            "/share/help"))))
     (native-inputs
-     `(("pkg-config" ,pkg-config)
+     `(("gettext" ,gettext-minimal)
+       ("glib:bin" ,glib "bin")
+       ("gobject-introspection" ,gobject-introspection)
        ("itstool" ,itstool)
-       ("libxml" ,libxml2)
-       ("gettext" ,gettext-minimal)
-       ("bc" ,bc)))
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("python-wrapper" ,python-wrapper)))
     (inputs
-     `(("perl" ,perl)
-       ("python" ,python)
-       ("xsltproc" ,libxslt)
+     `(("bc" ,bc)
        ("dblatex" ,dblatex)
        ("docbook-xml" ,docbook-xml-4.3)
        ("docbook-xsl" ,docbook-xsl)
-       ("source-highlight" ,source-highlight)
        ("glib" ,glib)
-       ("python-six" ,python-six)))
-    (home-page "https://www.gtk.org/gtk-doc/")
-    (synopsis "Documentation generator from C source code")
-    (description
-     "GTK-Doc generates API documentation from comments added to C code.  It is
-typically used to document the public API of GTK+ and GNOME libraries, but it
-can also be used to document application code.")
-    (license license:gpl2+)))
+       ("libxml2" ,libxml2)
+       ("libxslt" ,libxslt)
+       ("python" ,python)
+       ("python-anytree" ,python-anytree)
+       ("python-lxml" ,python-lxml)
+       ("python-parameterized" ,python-parameterized)
+       ("python-pygments" ,python-pygments)
+       ("python-unittest2" ,python-unittest2)
+       ("source-highlight" ,source-highlight)
+       ("yelp-tools" ,yelp-tools)))
+    (home-page "https://wiki.gnome.org/DocumentationProject/GtkDoc")
+    (synopsis "GTK+ DocBook Documentation Generator")
+    (description "GtkDoc is a tool used to extract API documentation from C-code
+like Doxygen, but handles documentation of GObject (including signals and
+properties) that makes it very suitable for GTK+ apps and libraries.  It uses
+docbook for intermediate files and can produce html by default and pdf/man-pages
+with some extra work.")
+    (license
+     (list
+      ;; Docs.
+      license:fdl1.1+
+      ;; Others.
+      license:gpl2+))))
 
 ;; This is a variant of the 'gtk-doc' package that is not updated often.  It
 ;; is intended to be used as a native-input at build-time only.  This allows
diff --git a/gnu/packages/guile-xyz.scm b/gnu/packages/guile-xyz.scm
index 40b08168df..7e4d6251c1 100644
--- a/gnu/packages/guile-xyz.scm
+++ b/gnu/packages/guile-xyz.scm
@@ -1126,9 +1126,7 @@ messaging library.")
                         ;; command.
                         (substitute* "src/hmac.scm"
                           (("openssl")
-                           (string-append (assoc-ref inputs "openssl")
-                                          "/bin/openssl")))
-                        #t))
+                           (search-input-file inputs "/bin/openssl")))))
 
                     ;; XXX: The code uses 'include' to include its own source
                     ;; files, and "-L src" isn't enough in this case.
@@ -2912,7 +2910,7 @@ chunks can be expressions as well as simple tokens.")
                (("/usr/local/lib/guile")
                 (string-append (assoc-ref outputs "out") "/lib/guile"))
                (("/usr/local/include/guile")
-                (string-append (assoc-ref inputs "guile") "/include/guile"))
+                (search-input-directory inputs "/include/guile"))
                (("-L/usr/local/lib")
                 (string-append "-L" (assoc-ref inputs "guile") "/lib")))
              #t))
@@ -3311,7 +3309,7 @@ API.")
        ("perl" ,perl)
        ("pkg-config" ,pkg-config)
        ("texinfo" ,texinfo)
-       ("texlive" ,(texlive-union (list texlive-generic-epsf)))))
+       ("texlive" ,(texlive-updmap.cfg (list texlive-generic-epsf)))))
     (inputs
      `(("dbus-glib" ,dbus-glib)
        ("guile" ,guile-3.0)
@@ -3595,7 +3593,7 @@ feature-set, fully programmable in Guile Scheme.")
        ("vigra-c" ,vigra-c)
        ("guile" ,guile-2.2)))
     (native-inputs
-     `(("texlive" ,(texlive-union (list texlive-booktabs
+     `(("texlive" ,(texlive-updmap.cfg (list texlive-booktabs
                                         texlive-lm
                                         texlive-siunitx
                                         texlive-standalone
@@ -4673,8 +4671,8 @@ schedulers.")
                            "yaml/libyaml.scm"
                            ;; This file is mismatched with the generated FFI code.
                            "yaml/ffi-help-rt.scm"))
-               (copy-file (string-append (assoc-ref inputs "nyacc")
-                                         "/share/guile/site/3.0/system/ffi-help-rt.scm")
+               (copy-file (search-input-file
+                           inputs "/share/guile/site/3.0/system/ffi-help-rt.scm")
                           "yaml/ffi-help-rt.scm")
                (substitute* "yaml/ffi-help-rt.scm"
                  (("system ffi-help-rt") "yaml ffi-help-rt"))
diff --git a/gnu/packages/guile.scm b/gnu/packages/guile.scm
index f90ea85999..fffc30f913 100644
--- a/gnu/packages/guile.scm
+++ b/gnu/packages/guile.scm
@@ -16,6 +16,7 @@
 ;;; Copyright © 2018 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2019 Taylan Kammer <taylan.kammer@gmail.com>
 ;;; Copyright © 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -112,13 +113,11 @@
                       `(("self" ,this-package))
                       '()))
 
-   (inputs `(("gawk" ,gawk)
-             ("readline" ,readline)))
+   (inputs (list gawk readline))
 
    ;; Since `guile-1.8.pc' has "Libs: ... -lgmp -lltdl", these must be
    ;; propagated.
-   (propagated-inputs `(("gmp" ,gmp)
-                        ("libltdl" ,libltdl)))
+   (propagated-inputs (list gmp libltdl))
 
    (native-search-paths
     (list (search-path-specification
@@ -180,6 +179,11 @@ without requiring the source code to be rewritten.")
 
    (arguments
     `(#:configure-flags '("--disable-static") ; saves 3 MiB
+
+      ;; Work around non-reproducible .go files as described in
+      ;; <https://bugs.gnu.org/20272>, which affects 2.0, 2.2, and 3.0 so far.
+      #:parallel-build? #f
+
       #:phases
       (modify-phases %standard-phases
         ,@(if (hurd-system?)
@@ -246,7 +250,8 @@ without requiring the source code to be rewritten.")
                 "013mydzhfswqci6xmyc1ajzd59pfbdak15i0b090nhr9bzm7dxyd"))
               (modules '((guix build utils)))
               (patches (search-patches
-                        "guile-2.2-skip-oom-test.patch"))
+                        "guile-2.2-skip-oom-test.patch"
+                        "guile-2.2-skip-so-test.patch"))
 
               ;; Remove the pre-built object files.  Instead, build everything
               ;; from source, at the expense of significantly longer build
@@ -285,21 +290,71 @@ without requiring the source code to be rewritten.")
   (package
     (inherit guile-2.2)
     (name "guile")
-    (version "3.0.2")
+    (version "3.0.7")
     (source (origin
               (inherit (package-source guile-2.2))
+              (patches '())     ; We no longer need the patches.
               (uri (string-append "mirror://gnu/guile/guile-"
                                   version ".tar.xz"))
               (sha256
                (base32
-                "12lziar4j27j9whqp2n18427q45y9ghq7gdd8lqhmj1k0lr7vi2k"))))
+                "1dwiwsrpm4f96alfnz6wibq378242z4f16vsxgy1n9r00v3qczgm"))
+              ;; Replace the snippet because the oom-test still
+              ;; fails on some 32-bit architectures.
+              (snippet '(begin
+                          (substitute* "test-suite/standalone/Makefile.in"
+                            (("test-out-of-memory") ""))
+                          (for-each delete-file
+                                    (find-files "prebuilt" "\\.go$"))))))
+
+    ;; Build with the bundled mini-GMP to avoid interference with GnuTLS' own
+    ;; use of GMP via Nettle: <https://issues.guix.gnu.org/46330>.
+    (propagated-inputs
+     (srfi-1:fold srfi-1:alist-delete
+                  (package-propagated-inputs guile-2.2)
+                  '("gmp" "libltdl")))
     (arguments
-     ;; XXX: JIT-enabled Guile crashes in obscure ways on GNU/Hurd.
-     (if (hurd-target?)
-         (substitute-keyword-arguments (package-arguments guile-2.2)
-           ((#:configure-flags flags ''())
-            `(cons "--disable-jit" ,flags)))
-         (package-arguments guile-2.2)))
+     (substitute-keyword-arguments (package-arguments guile-2.2)
+       ((#:configure-flags flags ''())
+        ;; XXX: JIT-enabled Guile crashes in obscure ways on GNU/Hurd.
+        `(cons* ,@(if (hurd-target?)
+                      '("--disable-jit")
+                      '())
+                ;; -fexcess-precision=standard is required when compiling for
+                ;; i686-linux, otherwise "numbers.test" will fail
+                ;; (see <https://issues.guix.gnu.org/49368> and
+                ;; <https://issues.guix.gnu.org/49659>).
+                ,@(if (target-x86-32?)
+                      '("CFLAGS=-g -O2 -fexcess-precision=standard")
+                      '())
+                "--enable-mini-gmp"
+                ,flags))
+       ((#:phases phases)
+        `(modify-phases ,phases
+           (add-before 'check 'disable-stack-overflow-test
+             (lambda _
+               ;; This test can invoke the "OOM killer", especially when
+               ;; running on emulated hardware (QEMU).  Skip it.
+               (substitute* "test-suite/standalone/test-stack-overflow"
+                 (("!#")
+                  "!#\n(exit 77)\n"))))
+
+           ,@(if (string-prefix? "powerpc-" (%current-system))
+                 `((add-after 'unpack 'adjust-bootstrap-flags
+                     (lambda _
+                       ;; Upstream knows about suggested solution.
+                       ;; https://debbugs.gnu.org/cgi/bugreport.cgi?bug=45214
+                       (substitute* "bootstrap/Makefile.in"
+                         (("^GUILE_OPTIMIZATIONS.*")
+                          "GUILE_OPTIMIZATIONS = -O1 -Oresolve-primitives -Ocps\n"))))
+                   (add-after 'unpack 'skip-failing-fdes-test
+                     (lambda _
+                       ;; ERROR: ((system-error "seek" "~A" ("Bad file descriptor") (9)))
+                       (substitute* "test-suite/tests/ports.test"
+                         (("fdes not closed\"" all) (string-append all "(exit 77)")))
+                       #t)))
+                 '())))))
+
     (native-search-paths
      (list (search-path-specification
             (variable "GUILE_LOAD_PATH")
@@ -310,31 +365,7 @@ without requiring the source code to be rewritten.")
                      "share/guile/site/3.0")))))))
 
 (define-public guile-3.0-latest
-  ;; TODO: Make this 'guile-3.0' on the next rebuild cycle.
-  (package
-    (inherit guile-3.0)
-    (version "3.0.7")
-    (source (origin
-              (inherit (package-source guile-3.0)) ;preserve snippet
-              (patches '())
-              (uri (string-append "mirror://gnu/guile/guile-"
-                                  version ".tar.xz"))
-              (sha256
-               (base32
-                "1dwiwsrpm4f96alfnz6wibq378242z4f16vsxgy1n9r00v3qczgm"))))
-
-    ;; Build with the bundled mini-GMP to avoid interference with GnuTLS' own
-    ;; use of GMP via Nettle: <https://issues.guix.gnu.org/46330>.  Use
-    ;; LIBGC/DISABLE-MUNMAP to work around <https://bugs.gnu.org/40525>.
-    ;; Remove libltdl, which is no longer used.
-    (propagated-inputs
-     `(("bdw-gc" ,libgc/disable-munmap)
-       ,@(srfi-1:fold srfi-1:alist-delete (package-propagated-inputs guile-3.0)
-                      '("gmp" "libltdl" "bdw-gc"))))
-    (arguments
-     (substitute-keyword-arguments (package-arguments guile-3.0)
-       ((#:configure-flags flags ''())
-        `(cons "--enable-mini-gmp" ,flags))))))
+  guile-3.0)
 
 (define-public guile-3.0/libgc-7
   ;; Using libgc-7 avoid crashes that can occur, particularly when loading
@@ -386,14 +417,14 @@ without requiring the source code to be rewritten.")
                  (delete-file "test-suite/tests/version.test")
                  #t))))))
       (native-inputs
-       `(("autoconf" ,autoconf)
-         ("automake" ,automake)
-         ("libtool" ,libtool)
-         ("flex" ,flex)
-         ("gettext" ,gnu-gettext)
-         ("texinfo" ,texinfo)
-         ("gperf" ,gperf)
-         ,@(package-native-inputs guile-3.0)))
+       (modify-inputs (package-native-inputs guile-3.0)
+         (prepend autoconf
+                  automake
+                  libtool
+                  flex
+                  gnu-gettext
+                  texinfo
+                  gperf)))
       (synopsis "Development version of GNU Guile"))))
 
 (define* (make-guile-readline guile #:optional (name "guile-readline"))
@@ -403,7 +434,8 @@ without requiring the source code to be rewritten.")
     (source (package-source guile))
     (build-system gnu-build-system)
     (arguments
-     '(#:configure-flags '("--disable-silent-rules")
+     '(#:configure-flags '("--disable-silent-rules"
+                           "--enable-mini-gmp")   ;for Guile >= 3.0.6
        #:phases (modify-phases %standard-phases
                   (add-before 'build 'chdir
                     (lambda* (#:key outputs #:allow-other-keys)
@@ -578,9 +610,8 @@ GNU@tie{}Guile.  Use the @code{(ice-9 readline)} module and call its
     (build-system gnu-build-system)
     (arguments
      `(#:make-flags '("GUILE_AUTO_COMPILE=0")))   ;to prevent guild warnings
-    (native-inputs `(("pkg-config" ,pkg-config)
-                     ("guile" ,guile-2.2)))
-    (inputs `(("guile" ,guile-2.2)))
+    (native-inputs (list pkg-config guile-2.2))
+    (inputs (list guile-2.2))
     (synopsis "JSON module for Guile")
     (description
      "Guile-JSON supports parsing and building JSON documents according to the
@@ -618,9 +649,8 @@ specification.  These are the main features:
               (sha256
                (base32
                 "0nj0684qgh6ppkbdyxqfyjwsv2qbyairxpi8fzrhsi3xnc7jn4im"))))
-    (native-inputs `(("pkg-config" ,pkg-config)
-                     ("guile" ,guile-3.0)))
-    (inputs `(("guile" ,guile-3.0)))))
+    (native-inputs (list pkg-config guile-3.0))
+    (inputs (list guile-3.0))))
 
 (define-public guile3.0-json
   (deprecated-package "guile3.0-json" guile-json-3))
@@ -679,10 +709,8 @@ specification.  These are the main features:
                          (format #f "(dynamic-link \"~a/lib/libgdbm.so\")"
                                  (assoc-ref inputs "gdbm"))))
                       #t)))))
-    (native-inputs
-     `(("guile" ,guile-3.0)))
-    (inputs
-     `(("gdbm" ,gdbm)))
+    (native-inputs (list guile-3.0))
+    (inputs (list gdbm))
     (home-page "https://github.com/ijp/guile-gdbm")
     (synopsis "Guile bindings to the GDBM library via Guile's FFI")
     (description
@@ -713,14 +741,8 @@ Guile's foreign function interface.")
                 "1nryy9j3bk34i0alkmc9bmqsm0ayz92k1cdf752mvhyjjn8nr928"))
               (file-name (string-append name "-" version "-checkout"))))
     (build-system gnu-build-system)
-    (native-inputs
-     `(("autoconf" ,autoconf)
-       ("automake" ,automake)
-       ("guile" ,guile-3.0)
-       ("pkg-config" ,pkg-config)))
-    (inputs
-     `(("guile" ,guile-3.0)
-       ("sqlite" ,sqlite)))
+    (native-inputs (list autoconf automake guile-3.0 pkg-config))
+    (inputs (list guile-3.0 sqlite))
     (synopsis "Access SQLite databases from Guile")
     (description
      "This package provides Guile bindings to the SQLite database system.")
@@ -760,13 +782,8 @@ Guile's foreign function interface.")
                              (doc (string-append out "/share/doc/" package)))
                         (install-file "README.md" doc)
                         #t))))))
-    (native-inputs
-     `(("autoconf" ,autoconf)
-       ("automake" ,automake)
-       ("pkg-config" ,pkg-config)
-       ("guile" ,guile-3.0)))
-    (inputs
-     `(("guile" ,guile-3.0)))
+    (native-inputs (list autoconf automake pkg-config guile-3.0))
+    (inputs (list guile-3.0))
     (synopsis "Structured access to bytevector contents for Guile")
     (description
      "Guile bytestructures offers a system imitating the type system
@@ -803,17 +820,11 @@ type system, elevating types to first-class status.")
     (arguments
      `(#:make-flags '("GUILE_AUTO_COMPILE=0")))     ; to prevent guild warnings
     (native-inputs
-     `(("pkg-config" ,pkg-config)
-       ("autoconf" ,autoconf)
-       ("automake" ,automake)
-       ("texinfo" ,texinfo)
-       ("guile" ,guile-3.0)
-       ("guile-bytestructures" ,guile-bytestructures)))
+     (list pkg-config autoconf automake texinfo guile-3.0 guile-bytestructures))
     (inputs
-     `(("guile" ,guile-3.0)
-       ("libgit2" ,libgit2)))
+     (list guile-3.0 libgit2))
     (propagated-inputs
-     `(("guile-bytestructures" ,guile-bytestructures)))
+     (list guile-bytestructures))
     (synopsis "Guile bindings for libgit2")
     (description
      "This package provides Guile bindings to libgit2, a library to
@@ -850,16 +861,8 @@ manipulate repositories of the Git version control system.")
     (arguments
      '(#:make-flags
        '("GUILE_AUTO_COMPILE=0"))) ;to prevent guild warnings
-    (native-inputs
-     `(("autoconf" ,autoconf)
-       ("automake" ,automake)
-       ("pkg-config" ,pkg-config)
-       ,@(if (%current-target-system)
-             `(("guile" ,guile-3.0))   ;for 'guild compile' and 'guile-3.0.pc'
-             '())))
-    (inputs
-     `(("guile" ,guile-3.0)
-       ("zlib" ,zlib)))
+    (native-inputs (list autoconf automake pkg-config guile-3.0))
+    (inputs (list guile-3.0 zlib))
     (synopsis "Guile bindings to zlib")
     (description
      "This package provides Guile bindings for zlib, a lossless
@@ -889,16 +892,8 @@ Guile's foreign function interface.")
     (arguments
      '(#:make-flags
        '("GUILE_AUTO_COMPILE=0"))) ;to prevent guild warnings
-    (native-inputs
-     `(("autoconf" ,autoconf)
-       ("automake" ,automake)
-       ("pkg-config" ,pkg-config)
-       ,@(if (%current-target-system)
-             `(("guile" ,guile-3.0))   ;for 'guild compile' and 'guile-3.0.pc'
-             '())))
-    (inputs
-     `(("guile" ,guile-3.0)
-       ("lzlib" ,lzlib)))
+    (native-inputs (list autoconf automake pkg-config guile-3.0))
+    (inputs (list guile-3.0 lzlib))
     (synopsis "Guile bindings to lzlib")
     (description
      "This package provides Guile bindings for lzlib, a C library for
@@ -924,14 +919,8 @@ pure Scheme by using Guile's foreign function interface.")
                (base32
                 "1c8l7829b5yx8wdc0mrhzjfwb6h9hb7cd8dfxcr71a7vlsi86310"))))
     (build-system gnu-build-system)
-    (native-inputs
-     `(("autoconf" ,autoconf)
-       ("automake" ,automake)
-       ("pkg-config" ,pkg-config)
-       ("guile" ,guile-3.0)))
-    (inputs
-     `(("zstd" ,zstd "lib")
-       ("guile" ,guile-3.0)))
+    (native-inputs (list autoconf automake pkg-config guile-3.0))
+    (inputs (list `(,zstd "lib") guile-3.0))
     (synopsis "GNU Guile bindings to the zstd compression library")
     (description
      "This package provides a GNU Guile interface to the zstd (``zstandard'')
diff --git a/gnu/packages/haskell-xyz.scm b/gnu/packages/haskell-xyz.scm
index 7ed0db6c66..2c48ce9586 100644
--- a/gnu/packages/haskell-xyz.scm
+++ b/gnu/packages/haskell-xyz.scm
@@ -3,7 +3,7 @@
 ;;; Copyright © 2015 Siniša Biđin <sinisa@bidin.eu>
 ;;; Copyright © 2015 Paul van der Walt <paul@denknerd.org>
 ;;; Copyright © 2015, 2019 Eric Bavier <bavier@member.fsf.org>
-;;; Copyright © 2016, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016, 2018, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016, 2017 Nikita <nikita@n0.is>
 ;;; Copyright © 2016, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2015, 2016, 2017, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
@@ -5895,8 +5895,7 @@ descriptions.")
              (let* ((out   (assoc-ref outputs "out"))
                     (elisp-file "elisp/hindent.el")
                     (dest  (string-append out "/share/emacs/site-lisp"))
-                    (emacs (string-append (assoc-ref inputs "emacs")
-                                          "/bin/emacs")))
+                    (emacs (search-input-file inputs "/bin/emacs")))
                (make-file-writable elisp-file)
                (emacs-substitute-variables elisp-file
                  ("hindent-process-path"
diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 3d10bdc946..587da970b9 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -3,7 +3,7 @@
 ;;; Copyright © 2015 Siniša Biđin <sinisa@bidin.eu>
 ;;; Copyright © 2015 Paul van der Walt <paul@denknerd.org>
 ;;; Copyright © 2015, 2019 Eric Bavier <bavier@member.fsf.org>
-;;; Copyright © 2016, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016, 2018, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016, 2017 Nikita <nikita@n0.is>
 ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020 Ricardo Wurmus <rekado@elephly.net>
@@ -247,9 +247,8 @@ top of CLISP.")
                      (gmp-lib (string-append gmp "/lib"))
                      (gmp-include (string-append gmp "/include"))
                      (ncurses-lib
-                      (string-append (assoc-ref inputs "ncurses") "/lib"))
-                     (ld-so (string-append (assoc-ref inputs "libc")
-                                           ,(glibc-dynamic-linker)))
+                      (dirname (search-input-file inputs "/lib/libncurses.so")))
+                     (ld-so (search-input-file inputs ,(glibc-dynamic-linker)))
                      (libtinfo-dir
                       (string-append ghc-bootstrap-prefix
                                      "/lib/ghc-7.8.4/terminfo-0.4.0.0")))
diff --git a/gnu/packages/hurd.scm b/gnu/packages/hurd.scm
index 59a7b55943..7a1827aa8b 100644
--- a/gnu/packages/hurd.scm
+++ b/gnu/packages/hurd.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014, 2015, 2016, 2017 Manolis Fragkiskos Ragkousis <manolis837@gmail.com>
-;;; Copyright © 2018, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2018, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2020 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
@@ -51,20 +51,16 @@
             hurd-target?
             hurd-triplet?))
 
-(define (hurd-triplet? triplet)
-  (and (string-suffix? "-gnu" triplet)
-       (not (string-contains triplet "linux"))))
-
 (define (hurd-target?)
   "Return true if the cross-compilation target or the current system is
 GNU/Hurd."
-  (or (and=> (%current-target-system) hurd-triplet?)
+  (or (and=> (%current-target-system) target-hurd?)
       (and (not (%current-target-system))
-           (and=> (%current-system) hurd-triplet?))))
+           (and=> (%current-system) target-hurd?))))
 
 (define (hurd-system?)
   "Return true if the current system is the Hurd."
-  (and=> (%current-system) hurd-triplet?))
+  (and=> (%current-system) target-hurd?))
 
 (define (hurd-source-url version)
   (string-append "mirror://gnu/hurd/hurd-"
@@ -378,9 +374,10 @@ Hurd-minimal package which are needed for both glibc and GCC.")
            (lambda* (#:key inputs #:allow-other-keys)
              (for-each (lambda (var)
                          (setenv var
-                                 (string-append (assoc-ref inputs "libtirpc")
-                                                "/include/tirpc:"
-                                                (or (getenv var) ""))))
+                                 (string-append
+                                  (search-input-directory inputs
+                                                          "include/tirpc")
+                                  ":" (or (getenv var) ""))))
                        '("CROSS_C_INCLUDE_PATH" "C_INCLUDE_PATH"
                          "CROSS_CPATH" "CPATH"))
              #t))
diff --git a/gnu/packages/ibus.scm b/gnu/packages/ibus.scm
index e6001efa7f..12e9f3a79f 100644
--- a/gnu/packages/ibus.scm
+++ b/gnu/packages/ibus.scm
@@ -42,6 +42,7 @@
   #:use-module (gnu packages databases)
   #:use-module (gnu packages datastructures)
   #:use-module (gnu packages dbm)
+  #:use-module (gnu packages docbook)
   #:use-module (gnu packages freedesktop)
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages glib)
@@ -49,18 +50,21 @@
   #:use-module (gnu packages gtk)
   #:use-module (gnu packages iso-codes)
   #:use-module (gnu packages logging)
+  #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-xyz)
   #:use-module (gnu packages serialization)
   #:use-module (gnu packages sqlite)
   #:use-module (gnu packages textutils)
   #:use-module (gnu packages unicode)
-  #:use-module (gnu packages xorg))
+  #:use-module (gnu packages xorg)
+  #:use-module (gnu packages xdisorg))
 
 (define-public ibus
   (package
     (name "ibus")
-    (version "1.5.22")
+    (version "1.5.24")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/ibus/ibus/"
@@ -68,12 +72,14 @@
                                   version "/ibus-" version ".tar.gz"))
               (sha256
                (base32
-                "0jmy2w01phpmqnjnfnak7nvfna57mpgfnl87jwc4iai8ijjynw41"))))
+                "07s2ly75xv50bqg37mn37i9akqvcfd45k2mbplxrsqk3a2b3mwxb"))))
     (build-system glib-or-gtk-build-system)
+    (outputs '("out" "doc"))
     (arguments
-     `(#:tests? #f  ; tests fail because there's no connection to dbus
-       #:parallel-build? #f ; race condition discovered with emoji support
+     `(#:parallel-build? #f ; race condition discovered with emoji support
        #:configure-flags (list "--enable-python-library"
+                               "--enable-gtk-doc"
+                               "--enable-memconf"
                                (string-append
                                 "--with-unicode-emoji-dir="
                                 (assoc-ref %build-inputs "unicode-emoji")
@@ -88,6 +94,20 @@
                                "--enable-wayland")
        #:phases
        (modify-phases %standard-phases
+         (add-after 'unpack 'disable-failing-tests
+           (lambda _
+             ;; These tests require /etc/machine-id.
+             (with-directory-excursion "src/tests"
+               (substitute* '("ibus-share.c" "ibus-compose.c"
+                              "ibus-keypress.c")
+                 (("[ \t]*return g_test_run \\(\\);") "")))))
+         (add-after 'unpack 'patch-docbook-xml
+           (lambda* (#:key inputs #:allow-other-keys)
+             (with-directory-excursion "docs/reference/ibus"
+               (substitute* "ibus-docs.sgml.in"
+                 (("http://www.oasis-open.org/docbook/xml/4.1.2/")
+                  (string-append (assoc-ref inputs "docbook-xml")
+                                 "/xml/dtd/docbook/"))))))
          (add-after 'unpack 'patch-python-target-directories
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((root (string-append (assoc-ref outputs "out")
@@ -98,13 +118,11 @@
                  (("(py2?overridesdir)=.*" _ var)
                   (string-append var "=" root "/gi/overrides/"))
                  (("(pkgpython2dir=).*" _ var)
-                  (string-append var root "/ibus"))))
-             #t))
+                  (string-append var root "/ibus"))))))
          (add-before 'configure 'disable-dconf-update
            (lambda _
              (substitute* "data/dconf/Makefile.in"
-               (("dconf update") "echo dconf update"))
-             #t))
+               (("dconf update") "echo dconf update"))))
          (add-after 'unpack 'delete-generated-files
            (lambda _
              (for-each (lambda (file)
@@ -112,53 +130,85 @@
                            (when (file-exists? c)
                              (format #t "deleting ~a\n" c)
                              (delete-file c))))
-                       (find-files "." "\\.vala"))
-             #t))
+                       (find-files "." "\\.vala"))))
          (add-after 'unpack 'fix-paths
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "src/ibusenginesimple.c"
                (("/usr/share/X11/locale")
-                (string-append (assoc-ref inputs "libx11")
-                               "/share/X11/locale")))
+                (search-input-directory inputs
+                                        "share/X11/locale")))
              (substitute* "ui/gtk3/xkblayout.vala"
                (("\"(setxkbmap|xmodmap)\"" _ prog)
-                (string-append "\"" (assoc-ref inputs prog) "/bin/" prog "\"")))
-             #t))
+                (string-append "\""
+                               (search-input-file inputs
+                                                  (string-append "bin/" prog))
+                               "\"")))))
+         (add-before 'check 'pre-check
+           (lambda _
+             ;; Tests write to $HOME.
+             (setenv "HOME" (getcwd))
+             ;; Tests look for $XDG_RUNTIME_DIR.
+             (setenv "XDG_RUNTIME_DIR" (getcwd))
+             ;; For missing '/etc/machine-id'.
+             (setenv "DBUS_FATAL_WARNINGS" "0")
+             ;; Tests require a running X server.
+             (system "Xvfb :1 +extension GLX &")
+             (setenv "DISPLAY" ":1")
+             ;; Tests require running iBus daemon.
+             (system "./bus/ibus-daemon --daemonize")))
+         (add-after 'install 'move-doc
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc (assoc-ref outputs "doc")))
+               (mkdir-p (string-append doc "/share"))
+               (rename-file
+                (string-append out "/share/gtk-doc")
+                (string-append doc "/share/gtk-doc")))))
          (add-after 'wrap-program 'wrap-with-additional-paths
            (lambda* (#:key outputs #:allow-other-keys)
              ;; Make sure 'ibus-setup' runs with the correct PYTHONPATH and
              ;; GI_TYPELIB_PATH.
              (let ((out (assoc-ref outputs "out")))
                (wrap-program (string-append out "/bin/ibus-setup")
-                 `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH")))
+                 `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH")))
                  `("GI_TYPELIB_PATH" ":" prefix
                    (,(getenv "GI_TYPELIB_PATH")
-                    ,(string-append out "/lib/girepository-1.0")))))
-             #t)))))
+                    ,(string-append out "/lib/girepository-1.0"))))))))))
     (inputs
      `(("dbus" ,dbus)
        ("dconf" ,dconf)
-       ("gconf" ,gconf)
+       ("glib" ,glib)
        ("gtk2" ,gtk+-2)
        ("gtk+" ,gtk+)
+       ("iso-codes" ,iso-codes)
        ("json-glib" ,json-glib)
        ("libnotify" ,libnotify)
        ("libx11" ,libx11)
+       ("libxkbcommon" ,libxkbcommon)
+       ("libxtst" ,libxtst)
+       ("pygobject" ,python-pygobject)
+       ("python" ,python)
+       ("python-dbus" ,python-dbus)
        ("setxkbmap" ,setxkbmap)
+       ("ucd" ,ucd)
+       ("unicode-cldr-common" ,unicode-cldr-common)
+       ("unicode-emoji" ,unicode-emoji)
        ("wayland" ,wayland)
-       ("xmodmap" ,xmodmap)
-       ("iso-codes" ,iso-codes)
-       ("pygobject2" ,python-pygobject)
-       ("python" ,python)))
+       ("xmodmap" ,xmodmap)))
     (native-inputs
-     `(("glib" ,glib "bin") ; for glib-genmarshal
+     `(("docbook-xml" ,docbook-xml-4.1.2)
+       ("glib" ,glib "bin")             ; for glib-genmarshal
        ("gettext" ,gettext-minimal)
+       ("gnome-common" ,gnome-common)
        ("gobject-introspection" ,gobject-introspection) ; for g-ir-compiler
-       ("ucd" ,ucd)
-       ("unicode-emoji" ,unicode-emoji)
-       ("unicode-cldr-common" ,unicode-cldr-common)
+       ("gtk+:bin" ,gtk+ "bin")
+       ("gtk-doc" ,gtk-doc)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("python-wrapper" ,python-wrapper)
        ("vala" ,vala)
-       ("pkg-config" ,pkg-config)))
+       ("which" ,which)
+       ("xorg-server" ,xorg-server-for-tests)))
     (native-search-paths
      (list (search-path-specification
             (variable "IBUS_COMPONENT_PATH")
@@ -195,8 +245,8 @@ may also simplify input method development.")
              ;; PYTHONPATH and GI_TYPELIB_PATH.
              (let ((out (assoc-ref outputs "out")))
                (wrap-program (string-append out "/libexec/ibus-setup-libpinyin")
-                 `("PYTHONPATH" ":" =
-                   (,(getenv "PYTHONPATH")
+                 `("GUIX_PYTHONPATH" ":" prefix
+                   (,(getenv "GUIX_PYTHONPATH")
                     ,(string-append (assoc-ref inputs "ibus")
                                     "/lib/girepository-1.0")
                     ,(string-append (assoc-ref outputs "out")
@@ -277,8 +327,8 @@ Chinese pinyin input methods.")
                (for-each
                 (lambda (prog)
                   (wrap-program (string-append out "/libexec/" prog)
-                    `("PYTHONPATH" ":" prefix
-                      (,(getenv "PYTHONPATH")))
+                    `("GUIX_PYTHONPATH" ":" prefix
+                      (,(getenv "GUIX_PYTHONPATH")))
                     `("GI_TYPELIB_PATH" ":" prefix
                       (,(getenv "GI_TYPELIB_PATH")
                        ,(string-append out "/lib/girepository-1.0")))))
@@ -740,7 +790,7 @@ hanja dictionary and small hangul character classification.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (wrap-program (string-append (assoc-ref outputs "out")
                                           "/libexec/ibus-setup-hangul")
-               `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH")))
+               `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH")))
                `("LD_LIBRARY_PATH" ":" prefix
                  (,(string-append (assoc-ref inputs "libhangul") "/lib")))
                `("GI_TYPELIB_PATH" ":" prefix
diff --git a/gnu/packages/icu4c.scm b/gnu/packages/icu4c.scm
index 12f8393900..7397f7cab8 100644
--- a/gnu/packages/icu4c.scm
+++ b/gnu/packages/icu4c.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2015, 2016 Mark H Weaver <mhw@netris.org>
-;;; Copyright © 2016, 2017 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2017, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
 ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2019, 2020 Marius Bakke <mbakke@fastmail.com>
@@ -39,7 +39,7 @@
 (define-public icu4c
   (package
    (name "icu4c")
-   (version "66.1")
+   (version "69.1")
    (source (origin
             (method url-fetch)
             (uri (string-append
@@ -48,10 +48,8 @@
                   "/icu4c-"
                   (string-map (lambda (x) (if (char=? x #\.) #\_ x)) version)
                   "-src.tgz"))
-            (patch-flags '("-p2"))
-            (patches (search-patches "icu4c-CVE-2020-10531.patch"))
             (sha256
-             (base32 "0bharwzc9nzkbrcf405z2nb3h7q0711z450arz0mjmdrk8hg58sj"))))
+             (base32 "0icps0avkwy5df3wwc5kybxcg63hcgk4phdh9g244g0xrmx7pfjc"))))
    (build-system gnu-build-system)
    ;; When cross-compiling, this package needs a source directory of a
    ;; native-build of itself.
diff --git a/gnu/packages/image-processing.scm b/gnu/packages/image-processing.scm
index df77bef192..e6fd4817d9 100644
--- a/gnu/packages/image-processing.scm
+++ b/gnu/packages/image-processing.scm
@@ -589,10 +589,9 @@ integrates with various databases on GUI toolkits such as Qt and Tk.")
            ;; in the CPATH, so we need to add "$ilmbase/include/OpenEXR/" to
            ;; the CPATH to satisfy the dependency on "ImathVec.h".
            (setenv "CPATH"
-                   (string-append (assoc-ref inputs "ilmbase")
-                                  "/include/OpenEXR"
-                                  ":" (or (getenv "CPATH") "")))
-           #t))
+                   (string-append
+                    (search-input-directory inputs "include/OpenEXR")
+                    ":" (or (getenv "CPATH") "")))))
        (add-before 'check 'start-xserver
          (lambda* (#:key inputs #:allow-other-keys)
            (let ((xorg-server (assoc-ref inputs "xorg-server"))
diff --git a/gnu/packages/image-viewers.scm b/gnu/packages/image-viewers.scm
index 895a331aee..3a734909a5 100644
--- a/gnu/packages/image-viewers.scm
+++ b/gnu/packages/image-viewers.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Ian Denhardt <ian@zenhack.net>
 ;;; Copyright © 2015, 2016 Alex Kost <alezost@gmail.com>
 ;;; Copyright © 2016, 2017, 2018, 2019, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
@@ -556,10 +556,9 @@ It supports JPEG, PNG and GIF formats.")
              ;; not use 'OpenEXR.pc'.  Thus, we need to add
              ;; "$ilmbase/include/OpenEXR/" to the CPATH.
              (setenv "CPATH"
-                     (string-append (assoc-ref inputs "ilmbase")
-                                    "/include/OpenEXR"
-                                    ":" (or (getenv "CPATH") "")))
-             #t)))))
+                     (string-append
+                      (search-input-directory inputs "include/OpenEXR")
+                      ":" (or (getenv "CPATH") ""))))))))
     (home-page "http://qtpfsgui.sourceforge.net")
     (synopsis "High dynamic range (HDR) imaging application")
     (description
diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm
index 225a5c2d10..19bbb2d63d 100644
--- a/gnu/packages/image.scm
+++ b/gnu/packages/image.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2017, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2015, 2016 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2014, 2015, 2016, 2020 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014, 2015 Alex Kost <alezost@gmail.com>
@@ -8,7 +8,7 @@
 ;;; Copyright © 2015 Amirouche Boubekki <amirouche@hypermove.net>
 ;;; Copyright © 2014, 2017 John Darrington <jmd@gnu.org>
 ;;; Copyright © 2016, 2017, 2018, 2020 Leo Famulari <leo@famulari.name>
-;;; Copyright © 2016, 2017, 2018, 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2017, 2018, 2019, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016–2021 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2016 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2016, 2017, 2020 Arun Isaac <arunisaac@systemreboot.net>
@@ -26,6 +26,7 @@
 ;;; Copyright © 2020 Giacomo Leidi <goodoldpaul@autistici.org>
 ;;; Copyright © 2020 R Veera Kumar <vkor@vkten.in>
 ;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2020 Zhu Zihao <all_but_last@163.com>
 ;;; Copyright © 2020, 2021 Vinicius Monego <monego@posteo.net>
 ;;; Copyright © 2021 Sharlatan Hellseher <sharlatanus@gmail.com>
@@ -111,8 +112,8 @@
      (origin
        (method url-fetch)
        (uri
-        (string-append "https://sourceforge.net/projects/iqa/files/"
-                       "1.1.2%20Release/iqa_1.1.2_src.tar.gz/download"))
+        (string-append "mirror://sourceforge/iqa/"
+                       version " Release" "/iqa_" version "_src.tar.gz"))
        (sha256
         (base32 "00mgwy031ammab6bwmd1whhvqv3fxy1cs1igabq0n3ag12zhjs77"))))
     (build-system gnu-build-system)
@@ -581,7 +582,7 @@ extracting icontainer icon files.")
 (define-public libtiff
   (package
    (name "libtiff")
-   (version "4.1.0")
+   (version "4.3.0")
    (source
      (origin
        (method url-fetch)
@@ -589,11 +590,10 @@ extracting icontainer icon files.")
                            version ".tar.gz"))
        (sha256
         (base32
-         "0d46bdvxdiv59lxnb0xz9ywm8arsr6xsapi5s6y6vnys2wjz6aax"))))
-   (replacement libtiff/fixed)
+         "1j3snghqjbhwmnm5vz3dr1zm68dj15mgbx1wqld7vkl7n2nfaihf"))))
    (build-system gnu-build-system)
    (outputs '("out"
-              "doc"))                           ;1.3 MiB of HTML documentation
+              "doc"))                           ;1.8 MiB of HTML documentation
    (arguments
     ;; Instead of using --docdir, this package has its own --with-docdir.
     `(#:configure-flags
@@ -614,20 +614,6 @@ collection of tools for doing simple manipulations of TIFF images.")
                                   "See COPYRIGHT in the distribution."))
    (home-page "http://www.simplesystems.org/libtiff/")))
 
-(define-public libtiff/fixed
-  (package
-    (inherit libtiff)
-    (name "libtiff")
-    (version "4.2.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "https://download.osgeo.org/libtiff/tiff-"
-                           version ".tar.gz"))
-       (sha256
-        (base32
-         "1jrkjv0xya9radddn8idxvs2gqzp3l2b1s8knlizmn7ad3jq817b"))))))
-
 (define-public leptonica
   (package
     (name "leptonica")
@@ -690,15 +676,15 @@ arithmetic ops.")
 (define-public jbig2dec
   (package
     (name "jbig2dec")
-    (version "0.18")
+    (version "0.19")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/ArtifexSoftware"
                                   "/ghostpdl-downloads/releases/download"
-                                  "/gs951/" name "-" version ".tar.gz"))
+                                  "/gs9533/" name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0pigfw2v0ppvr0lbysm69gx0zsa5q2q92yrb8af2j3im6x97f6cy"))))
+                "0dwa24kjqyg9hmm40fh048sdxfpnasz43l2rm8wlkw1qbdlpd517"))))
     (build-system gnu-build-system)
     (arguments '(#:configure-flags '("--disable-static")
                  #:phases (modify-phases %standard-phases
@@ -716,7 +702,7 @@ arithmetic ops.")
      `(("autoconf" ,autoconf)
        ("automake" ,automake)
        ("libtool" ,libtool)
-       ("python" ,python-wrapper)))     ;for tests
+       ("python" ,python-minimal-wrapper)))     ;for tests
     (synopsis "Decoder of the JBIG2 image compression format")
     (description
       "JBIG2 is designed for lossy or lossless encoding of @code{bilevel} (1-bit
@@ -809,17 +795,17 @@ images of initially unknown height.")
 (define-public openjpeg-data
   (package
     (name "openjpeg-data")
-    (version "2020.05.19")
+    (version "2020.11.30")
     (source
      (origin
        (method git-fetch)
        (uri
         (git-reference
          (url "https://github.com/uclouvain/openjpeg-data")
-         (commit "c5c4a8c")))
+         (commit "cd724fb1f93e6af41ebc68c4904f4bf2a4cd1e60")))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "1jp84gbhw8q5b8mhc322ql9410hjf32w9hg10x4isfa9j59mnncb"))))
+        (base32 "1q2swh4g9r9haqs075fyk42aclqcs9q51lqqzfb57lisszminpwm"))))
     (build-system copy-build-system)
     (synopsis "Test files for OpenJPEG")
     (description "OpenJPEG-Data contains all files required to run the openjpeg
@@ -831,23 +817,47 @@ test suite, including conformance tests (following Rec. ITU-T T.803 | ISO/IEC
 (define-public openjpeg
   (package
     (name "openjpeg")
-    (version "2.3.1")
+    (version "2.4.0")
     (source
      (origin
        (method git-fetch)
-       (uri
-        (git-reference
-         (url "https://github.com/uclouvain/openjpeg")
-         (commit
-          (string-append "v" version))))
-       (file-name
-        (git-file-name "openjpeg" version))
+       (uri (git-reference
+             (url "https://github.com/uclouvain/openjpeg")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
        (sha256
-        (base32 "1dn98d2dfa1lqyxxmab6rrcv52dyhjr4g7i4xf2w54fqsx14ynrb"))))
+        (base32 "143dvy5g6v6129lzvl0r8mrgva2fppkn0zl099qmi9yi9l9h7yyf"))))
     (build-system cmake-build-system)
     (arguments
-     '(#:tests? #f           ;TODO: requires a 1.1 GiB data repository
-       #:configure-flags '("-DBUILD_STATIC_LIBS=OFF")))
+     `(#:configure-flags
+       (list
+        "-DBUILD_STATIC_LIBS=OFF"
+        "-DBUILD_UNIT_TESTS=ON"
+        "-DBUILD_TESTING=ON"
+        (string-append "-DOPJ_DATA_ROOT="
+                       (assoc-ref %build-inputs "openjpeg-data")))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'disable-failing-tests
+           (lambda _
+             ;; To be re-enabled after upstream fixes the bug,
+             ;; https://github.com/uclouvain/openjpeg/issues/1264
+             (substitute* "tests/CMakeLists.txt"
+               (("add_subdirectory\\(nonregression\\)")
+                ""))
+             ;; These tests fail on all architectures except x86_64
+             (substitute* "tests/conformance/CMakeLists.txt"
+               ;; 4, 5, 6 fail
+               (("numFileC1P0 RANGE 1 16") "numFileC1P0 RANGE 7 16")
+               ;; 2, 3, 4, 5 fail
+               (("numFileC1P1 RANGE 1 7") "numFileC1P1 1 6 7")
+               ;; 2, 3 fail
+               (("numFileJP2 RANGE 1 9") "numFileJP2 RANGE 4 9")
+               ;; All fail
+               (("subsampling.*") "")
+               (("zoo.*") "")))))))
+    (native-inputs
+     `(("openjpeg-data" ,openjpeg-data))) ; Files for test-suite
     (inputs
      `(("lcms" ,lcms)
        ("libpng" ,libpng)
@@ -1275,7 +1285,7 @@ language bindings to VIGRA.")
 (define-public libwebp
   (package
     (name "libwebp")
-    (version "1.1.0")
+    (version "1.2.0")
     (source
      (origin
        ;; No tarballs are provided for >0.6.1.
@@ -1286,7 +1296,7 @@ language bindings to VIGRA.")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "0r2yy9if0ndvpzadk39bigvsygyqnlv0xjb9w2aj6rs534mncazz"))))
+         "1rgblphsd56033w7lpkrzl7m5w0fi7wavxri1ayzlg8fhpmmqp4k"))))
     (build-system gnu-build-system)
     (inputs
      `(("freeglut" ,freeglut)
@@ -2333,9 +2343,7 @@ Wacom-style graphics tablets.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* (list "src/dependency.py" "src/exif.py")
                (("exiftool")
-                (string-append (assoc-ref inputs "perl-image-exiftool")
-                               "/bin/exiftool")))
-             #t))
+                (search-input-file inputs "/bin/exiftool")))))
          (add-before 'install 'check
            (lambda _
              (invoke "pytest")))
diff --git a/gnu/packages/imagemagick.scm b/gnu/packages/imagemagick.scm
index 4f0ffcbcc6..f7cd961c05 100644
--- a/gnu/packages/imagemagick.scm
+++ b/gnu/packages/imagemagick.scm
@@ -235,12 +235,12 @@ script.")
              "--with-quantum-depth=16" ; required by Octave
              "--enable-quantum-library-names"
              (string-append "--with-gs-font-dir="
-                            (assoc-ref %build-inputs "gs-fonts")
+                            (assoc-ref %build-inputs "font-ghostscript")
                             "/share/fonts/type1/ghostscript"))))
     (inputs
      `(("graphviz" ,graphviz)
        ("ghostscript" ,ghostscript)
-       ("gs-fonts" ,gs-fonts)
+       ("font-ghostscript" ,font-ghostscript)
        ("lcms" ,lcms)
        ("libx11" ,libx11)
        ("libxml2" ,libxml2)
diff --git a/gnu/packages/inkscape.scm b/gnu/packages/inkscape.scm
index 46c8c4cc34..1e19ea592e 100644
--- a/gnu/packages/inkscape.scm
+++ b/gnu/packages/inkscape.scm
@@ -79,7 +79,7 @@
        ("freetype" ,freetype)
        ("popt" ,popt)
        ("potrace" ,potrace)
-       ("python" ,python-2)
+       ("python" ,python-wrapper)
        ("lcms" ,lcms)
        ("boost" ,boost)))
     (native-inputs
@@ -259,7 +259,7 @@ endif()~%~%"
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out")))
                (wrap-program (string-append out "/bin/inkscape")
-                 `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH")))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH")))))
              #t)))))
     (inputs
      `(("aspell" ,aspell)
diff --git a/gnu/packages/irc.scm b/gnu/packages/irc.scm
index e386e54e77..470c7ec8f3 100644
--- a/gnu/packages/irc.scm
+++ b/gnu/packages/irc.scm
@@ -119,7 +119,7 @@
        (modify-phases %standard-phases
          (add-after 'unpack 'patch-inxi-reference
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((inxi (string-append (assoc-ref inputs "inxi") "/bin/inxi")))
+             (let ((inxi (search-input-file inputs "/bin/inxi")))
                (symlink inxi "data/scripts/inxi")
                #t))))
        #:tests? #f)) ; no test target
diff --git a/gnu/packages/irods.scm b/gnu/packages/irods.scm
index bb0263682c..e9ac0d5297 100644
--- a/gnu/packages/irods.scm
+++ b/gnu/packages/irods.scm
@@ -120,18 +120,15 @@
                (("'usr', 'lib', 'irods'") "'lib', 'irods'"))
              (substitute* "scripts/irods/pypyodbc.py"
                (("\"/usr/lib/libodbc.so\"")
-                (string-append (assoc-ref inputs "unixodbc") "/lib/libodbc.so")))))
+                (search-input-file inputs "/lib/libodbc.so")))))
          (add-after 'set-paths 'adjust-CPLUS_INCLUDE_PATH
            (lambda* (#:key inputs #:allow-other-keys)
              (let ((gcc (assoc-ref inputs  "gcc")))
                (setenv "CPLUS_INCLUDE_PATH"
                        (string-join
-                        (cons* (string-append (assoc-ref inputs "libcxx+libcxxabi")
-                                              "/include/c++/v1")
-                               (string-append (assoc-ref inputs "catch2")
-                                              "/include/catch2")
-                               (string-append (assoc-ref inputs "json")
-                                              "/include/nlohmann")
+                        (cons* (search-input-directory inputs "/include/c++/v1")
+                               (search-input-directory inputs "/include/catch2")
+                               (search-input-directory inputs "/include/nlohmann")
                                ;; Hide GCC's C++ headers so that they do not interfere with
                                ;; the Clang headers.
                                (delete (string-append gcc "/include/c++")
@@ -231,10 +228,10 @@ stored.")
              (let ((gcc (assoc-ref inputs  "gcc")))
                (setenv "CPLUS_INCLUDE_PATH"
                        (string-join
-                        (cons* (string-append (assoc-ref inputs "libcxx+libcxxabi")
-                                              "/include/c++/v1")
-                               (string-append (assoc-ref inputs "json")
-                                              "/include/nlohmann")
+                        (cons* (search-input-directory inputs
+                                                       "include/c++/v1")
+                               (search-input-directory inputs
+                                                       "include/nlohmann")
                                ;; Hide GCC's C++ headers so that they do not interfere with
                                ;; the Clang headers.
                                (delete (string-append gcc "/include/c++")
diff --git a/gnu/packages/java-graphics.scm b/gnu/packages/java-graphics.scm
index f7a89021cd..960579f770 100644
--- a/gnu/packages/java-graphics.scm
+++ b/gnu/packages/java-graphics.scm
@@ -75,8 +75,7 @@ libraries.")
          (add-before 'check 'start-xorg-server
            (lambda* (#:key inputs #:allow-other-keys)
              ;; The test suite requires a running X server.
-             (system (string-append (assoc-ref inputs "xorg-server")
-                                    "/bin/Xvfb :1 -screen 0 640x480x24 &"))
+             (system "Xvfb :1 -screen 0 640x480x24 &")
              (setenv "DISPLAY" ":1")
              #t)))))
     (inputs
diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index 621a6fe914..171f55673d 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -42,6 +42,7 @@
   #:use-module (guix svn-download)
   #:use-module ((guix build utils) #:select (alist-replace))
   #:use-module (guix utils)
+  #:use-module (guix gexp)
   #:use-module (guix build-system ant)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system maven)
@@ -197,7 +198,7 @@ and binary format defined in The Java Virtual Machine Specification.")
            (delete 'configure)
            (add-before 'install 'fix-wrapper
              (lambda* (#:key inputs #:allow-other-keys)
-               (let ((jps (string-append (assoc-ref inputs "jdk") "/bin/jps")))
+               (let ((jps (search-input-file inputs "/bin/jps")))
                  (substitute* "bin/drip"
                    (("jps") jps)
                    (("brew update && brew upgrade drip") "guix pull && guix install drip")
@@ -377,14 +378,11 @@ JNI.")
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "JAVA_HOME" (assoc-ref inputs "jamvm"))
              (setenv "JAVACMD"
-                     (string-append (assoc-ref inputs "jamvm")
-                                    "/bin/jamvm"))
+                     (search-input-file inputs "/bin/jamvm"))
              (setenv "JAVAC"
-                     (string-append (assoc-ref inputs "jikes")
-                                    "/bin/jikes"))
+                     (search-input-file inputs "/bin/jikes"))
              (setenv "CLASSPATH"
-                     (string-append (assoc-ref inputs "jamvm")
-                                    "/lib/rt.jar"))
+                     (search-input-file inputs "/lib/rt.jar"))
 
              ;; Ant complains if this file doesn't exist.
              (setenv "HOME" "/tmp")
@@ -487,8 +485,7 @@ build process and its dependencies, whereas Make uses Makefile format.")
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "CLASSPATH"
                      (string-join
-                      (cons (string-append (assoc-ref inputs "jamvm")
-                                           "/lib/rt.jar")
+                      (cons (search-input-file inputs "/lib/rt.jar")
                             (find-files (string-append
                                          (assoc-ref inputs "ant-bootstrap")
                                          "/lib")
@@ -1572,8 +1569,8 @@ bootstrapping purposes.")
            (add-after 'install 'install-keystore
              (lambda* (#:key inputs outputs #:allow-other-keys)
                (let* ((keystore  "cacerts")
-                      (certs-dir (string-append (assoc-ref inputs "nss-certs")
-                                                "/etc/ssl/certs"))
+                      (certs-dir (search-input-directory inputs
+                                                         "etc/ssl/certs"))
                       (keytool   (string-append (assoc-ref outputs "jdk")
                                                 "/bin/keytool")))
                  (define (extract-cert file target)
@@ -1754,7 +1751,7 @@ IcedTea build harness.")
           (guix build syscalls)
           ,@%gnu-build-system-modules)
 
-         #:disallowed-references ((,icedtea-7 "jdk"))
+         #:disallowed-references ,(list (gexp-input icedtea-7 "jdk"))
 
          ,@(substitute-keyword-arguments (package-arguments icedtea-7)
              ((#:modules modules)
@@ -1910,7 +1907,8 @@ new Date();"))
        ((guix build syscalls)
         ,@%gnu-build-system-modules)
 
-       #:disallowed-references (,icedtea-8 (,icedtea-8 "jdk"))
+       #:disallowed-references ,(list (gexp-input icedtea-8)
+                                      (gexp-input icedtea-8 "jdk"))
 
        #:phases
        (modify-phases %standard-phases
@@ -2109,7 +2107,8 @@ new Date();"))
                        (string-append "--prefix=" (assoc-ref outputs "out")))
                #t))))
        ((#:disallowed-references _ '())
-        `(,openjdk9 (,openjdk9 "jdk")))))
+        `(,(gexp-input openjdk9)
+          ,(gexp-input openjdk9 "jdk")))))
     (native-inputs
      `(("openjdk9" ,openjdk9)
        ("openjdk9:jdk" ,openjdk9 "jdk")
@@ -2140,7 +2139,8 @@ new Date();"))
      `(#:imported-modules ((guix build syscalls)
                            ,@%gnu-build-system-modules)
 
-       #:disallowed-references (,openjdk10 (,openjdk10 "jdk"))
+       #:disallowed-references ,(list (gexp-input openjdk10)
+                                      (gexp-input openjdk10 "jdk"))
 
        #:tests? #f; requires jtreg
        ;; TODO package jtreg
@@ -3219,19 +3219,22 @@ Main-Class: org.eclipse.jdt.internal.compiler.batch.Main\n"
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "build/build.xml"
                  (("\\$\\{lib\\}/testng/testng-jdk15.jar")
-                  (string-append (assoc-ref inputs "java-testng")
-                                 "/share/java/java-testng.jar"))
+                  (search-input-file inputs
+                                     "/share/java/java-testng.jar"))
                  (("\\$\\{lib\\}/commons-lang/commons-lang.jar")
-                  (string-append (assoc-ref inputs "java-commons-lang")
-                                 "/share/java/commons-lang-"
-                                 ,(package-version java-commons-lang) ".jar"))
+                  (search-input-file inputs
+                                     (string-append
+                                      "/share/java/commons-lang-"
+                                      ,(package-version java-commons-lang)
+                                      ".jar")))
                  (("\\$\\{lib\\}/commons-io/commons-io.jar")
-                  (string-append (assoc-ref inputs "java-commons-io")
-                                 "/lib/m2/commons-io/commons-io/"
-                                 ,(package-version java-commons-io)
-                                 "/commons-io-"
-                                 ,(package-version java-commons-io)
-                                 ".jar"))
+                  (search-input-file inputs
+                                     (string-append
+                                      "/lib/m2/commons-io/commons-io/"
+                                      ,(package-version java-commons-io)
+                                      "/commons-io-"
+                                      ,(package-version java-commons-io)
+                                      ".jar")))
                  ;; Remove dependency on svn
                  (("<build-info.*") "")
                  (("\\$\\{revision.number\\}")
@@ -3404,8 +3407,7 @@ libraries from the SIS division at ETH Zurich like jHDF5.")
                  (rename-file "build-common.xml.new" "build-common.xml"))
                (substitute* "build/build.xml"
                  (("\\$\\{lib\\}/cisd-base/cisd-base.jar")
-                  (string-append (assoc-ref inputs "java-cisd-base")
-                                 "/share/java/sis-base.jar"))
+                  (search-input-file inputs "/share/java/sis-base.jar"))
                  ;; Remove dependency on svn
                  (("<build-info.*") "")
                  (("\\$\\{revision.number\\}")
@@ -3507,29 +3509,32 @@ libraries from the SIS division at ETH Zurich like jHDF5.")
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "../build_resources/ant/build-common.xml"
                  (("../libraries/testng/testng-jdk15.jar")
-                  (string-append (assoc-ref inputs "java-testng")
-                                 "/share/java/java-testng.jar")))
+                  (search-input-file inputs
+                                     "/share/java/java-testng.jar")))
                (substitute* "build/build.xml"
                  (("\\$\\{lib\\}/sis-base/sis-base.jar")
-                  (string-append (assoc-ref inputs "java-cisd-base")
-                                 "/share/java/sis-base.jar"))
+                  (search-input-file inputs
+                                     "/share/java/sis-base.jar"))
                  (("\\$\\{lib\\}/cisd-args4j/cisd-args4j.jar")
-                  (string-append (assoc-ref inputs "java-cisd-args4j")
-                                 "/share/java/cisd-args4j.jar"))
+                  (search-input-file inputs
+                                     "/share/java/cisd-args4j.jar"))
                  (("\\$\\{lib\\}/commons-lang/commons-lang.jar")
-                  (string-append (assoc-ref inputs "java-commons-lang")
-                                 "/share/java/commons-lang-"
-                                 ,(package-version java-commons-lang) ".jar"))
+                  (search-input-file inputs
+                                     (string-append
+                                      "/share/java/commons-lang-"
+                                      ,(package-version java-commons-lang)
+                                      ".jar")))
                  (("\\$\\{lib\\}/commons-io/commons-io.jar")
-                  (string-append (assoc-ref inputs "java-commons-io")
-                                 "/lib/m2/commons-io/commons-io/"
-                                 ,(package-version java-commons-io)
-                                 "/commons-io-"
-                                 ,(package-version java-commons-io)
-                                 ".jar"))
+                  (search-input-file inputs
+                                     (string-append
+                                      "/lib/m2/commons-io/commons-io/"
+                                      ,(package-version java-commons-io)
+                                      "/commons-io-"
+                                      ,(package-version java-commons-io)
+                                      ".jar")))
                  (("\\$\\{lib\\}/testng/testng-jdk15.jar")
-                  (string-append (assoc-ref inputs "java-testng")
-                                 "/share/java/java-testng.jar"))
+                  (search-input-file inputs
+                                     "/share/java/java-testng.jar"))
                  (("\\$\\{lib\\}/junit4/junit.jar")
                   (car (find-files (assoc-ref inputs "java-junit") "jar$")))
                  (("\\$\\{lib\\}/jmock/hamcrest/hamcrest-core.jar")
@@ -12920,7 +12925,7 @@ from ORO, Inc.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "build.xml"
                ;; Since we removed the bundled ant.jar, give the correct path
-               (("lib/ant.jar") (string-append (assoc-ref inputs "ant") "/lib/ant.jar"))
+               (("lib/ant.jar") (search-input-file inputs "/lib/ant.jar"))
                ;; We removed generated native libraries. We can only rebuild one
                ;; so don't fail if we can't find a native library for another architecture.
                (("zipfileset") "zipfileset erroronmissingarchive=\"false\""))
@@ -12974,8 +12979,7 @@ Java method invocation.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "nbproject/project.properties"
                (("../../build/jna.jar")
-                (string-append (assoc-ref inputs "java-native-access")
-                               "/share/java/jna.jar"))
+                (search-input-file inputs "/share/java/jna.jar"))
                (("../../lib/hamcrest-core-.*.jar")
                 (car (find-files (assoc-ref inputs "java-hamcrest-core")
                                  "jar$")))
@@ -14165,8 +14169,7 @@ can be interpreted by IDEs and static analysis tools to improve code analysis.")
                                             "/dist/" jar-name))
                         (java-cp (string-append share "/" jar-name))
                         (bin (string-append %output "/bin"))
-                        (java (string-append (assoc-ref inputs "jdk")
-                                             "/bin/java")))
+                        (java (search-input-file inputs "/bin/java")))
                    (install-file jar share)
                    (mkdir-p bin)
                    ;; Generate wrapper scripts for bin/, which invoke common
diff --git a/gnu/packages/jemalloc.scm b/gnu/packages/jemalloc.scm
index c4b87b540d..96713dbe52 100644
--- a/gnu/packages/jemalloc.scm
+++ b/gnu/packages/jemalloc.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com>
-;;; Copyright © 2017 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2017, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017 Eric Bavier <bavier@member.fsf.org>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -21,6 +21,7 @@
 (define-module (gnu packages jemalloc)
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-26)
+  #:use-module (ice-9 match)
   #:use-module ((guix licenses) #:select (bsd-2))
   #:use-module (guix packages)
   #:use-module (guix download)
@@ -52,12 +53,14 @@
              (substitute* "Makefile.in"
                (("\\$\\(srcroot\\)test/unit/pages.c \\\\") "\\"))
              #t)))
-       ,@(if (any (cute string-prefix? <> (or (%current-target-system)
-                                              (%current-system)))
-                 '("x64_64" "i686"))
-           ;; Transparent huge pages are only enabled by default on Intel processors
-           '()
-           '(#:configure-flags (list "--disable-thp")))))
+       #:configure-flags
+       '(,@(match (%current-system)
+             ((or "i686-linux" "x86_64-linux")
+              '())
+             ("powerpc-linux"
+              (list "--disable-thp" "CPPFLAGS=-maltivec"))
+             (_
+              (list "--disable-thp"))))))
     (inputs `(("perl" ,perl)))
     ;; Install the scripts to a separate output to avoid referencing Perl and
     ;; Bash in the default output, saving ~75 MiB on the closure.
diff --git a/gnu/packages/julia.scm b/gnu/packages/julia.scm
index 6045c16b8f..df8a74fea5 100644
--- a/gnu/packages/julia.scm
+++ b/gnu/packages/julia.scm
@@ -339,7 +339,7 @@ libraries.  It is also a bit like @code{ldd} and @code{otool -L}.")
              ;; call our version
              (substitute* "base/Makefile"
                (("\\$\\$\\(build_depsbindir\\)/libwhich")
-                (string-append (assoc-ref inputs "libwhich") "/bin/libwhich")))
+                (search-input-file inputs "/bin/libwhich")))
              #t))
          (add-before 'check 'set-home
            ;; Some tests require a home directory to be set.
@@ -365,9 +365,7 @@ libraries.  It is also a bit like @code{ldd} and @code{otool -L}.")
 
              (substitute* "base/Makefile"
                (("\\$\\(build_includedir\\)/uv/errno.h")
-                (string-append (assoc-ref inputs "libuv")
-                               "/include/uv/errno.h")))
-             #t))
+                (search-input-file inputs "/include/uv/errno.h")))))
          (add-before 'build 'replace-default-shell
            (lambda _
              (substitute* "base/client.jl"
diff --git a/gnu/packages/kde-frameworks.scm b/gnu/packages/kde-frameworks.scm
index 7a3b6b26a8..b168c38b15 100644
--- a/gnu/packages/kde-frameworks.scm
+++ b/gnu/packages/kde-frameworks.scm
@@ -451,9 +451,8 @@ GZip format, via a subclass of QIODevice.")
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "TZ" "Europe/Prague")
              (setenv "TZDIR"
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo"))
-             #t)))))
+                     (search-input-directory inputs
+                                             "share/zoneinfo")))))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Library for interfacing with calendars")
     (description "This library provides access to and handling of calendar
@@ -1641,8 +1640,7 @@ integrated it into your application's other widgets.")
              ;; Xvfb doesn't have proper glx support and needs a pixeldepth
              ;; of 24 bit to avoid "libGL error: failed to load driver: swrast"
              ;;                    "Could not initialize GLX"
-             (system (string-append (assoc-ref inputs "xorg-server")
-                                    "/bin/Xvfb :1 -screen 0 640x480x24 &"))
+             (system "Xvfb :1 -screen 0 640x480x24 &")
              (setenv "DISPLAY" ":1")
              #t)))))
     (home-page "https://community.kde.org/Frameworks")
@@ -2386,8 +2384,7 @@ their settings.")
            (lambda* (#:key inputs #:allow-other-keys)
              ;; The test suite requires a running X server, setting
              ;; QT_QPA_PLATFORM=offscreen does not suffice.
-             (system (string-append (assoc-ref inputs "xorg-server")
-                                    "/bin/Xvfb :1 -screen 0 640x480x24 &"))
+             (system "Xvfb :1 -screen 0 640x480x24 &")
              (setenv "DISPLAY" ":1")
              #t)))))
     (home-page "https://community.kde.org/Frameworks")
@@ -3691,8 +3688,8 @@ workspace.")
            (lambda* (#:key inputs tests? #:allow-other-keys)
              (setenv "HOME" (getcwd))
              (setenv "TZDIR"    ; KDateTimeTestsome needs TZDIR
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo"))
+                     (search-input-directory inputs
+                                             "share/zoneinfo"))
              ;; Make Qt render "offscreen", required for tests
              (setenv "QT_QPA_PLATFORM" "offscreen")
              ;; enable debug output
diff --git a/gnu/packages/kde-multimedia.scm b/gnu/packages/kde-multimedia.scm
index 21ca996246..4e28fe1367 100644
--- a/gnu/packages/kde-multimedia.scm
+++ b/gnu/packages/kde-multimedia.scm
@@ -186,8 +186,7 @@ This package is part of the KDE multimedia module.")
            (lambda* (#:key inputs #:allow-other-keys)
              ;; The test suite requires a running X server, setting
              ;; QT_QPA_PLATFORM=offscreen does not suffice.
-             (system (string-append (assoc-ref inputs "xorg-server")
-                                    "/bin/Xvfb :1 -screen 0 640x480x24 &"))
+             (system "Xvfb :1 -screen 0 640x480x24 &")
              (setenv "DISPLAY" ":1")
              #t))
          (replace 'check
diff --git a/gnu/packages/kde-pim.scm b/gnu/packages/kde-pim.scm
index db73941b42..0c7fa77b1e 100644
--- a/gnu/packages/kde-pim.scm
+++ b/gnu/packages/kde-pim.scm
@@ -757,10 +757,9 @@ for KDE PIM.")
                       ;; found during one of the compilation steps without
                       ;; this hack.
                       (setenv "CPLUS_INCLUDE_PATH"
-                              (string-append (assoc-ref inputs "akonadi-mime")
-                                             "/include/KF5:"
-                                             (or (getenv "CPLUS_INCLUDE_PATH") "")))
-                      #t)))))
+                              (string-append
+                               (search-input-directory inputs "include/KF5")
+                               ":" (or (getenv "CPLUS_INCLUDE_PATH") ""))))))))
     (home-page "https://invent.kde.org/pim/kdepim-runtime")
     (synopsis "Runtime components for Akonadi KDE")
     (description "This package contains Akonadi agents written using KDE
@@ -1369,10 +1368,9 @@ using a Qt/KMime C++ API.")
                       ;; FIXME: One of the compilation steps fail to find
                       ;; <Libkdepim/MultiplyingLine> without this hack.
                       (setenv "CPLUS_INCLUDE_PATH"
-                              (string-append (assoc-ref inputs "libkdepim")
-                                             "/include/KF5:"
-                                             (or (getenv "CPLUS_INCLUDE_PATH") "")))
-                      #t)))))
+                              (string-append
+                               (search-input-directory inputs "include/KF5")
+                               ":" (or (getenv "CPLUS_INCLUDE_PATH") ""))))))))
     (home-page "https://invent.kde.org/pim/messagelib")
     (synopsis "KDE PIM messaging libraries")
     (description "This package provides several libraries for messages,
diff --git a/gnu/packages/kde-plasma.scm b/gnu/packages/kde-plasma.scm
index b7a2b14f65..96e7ec6907 100644
--- a/gnu/packages/kde-plasma.scm
+++ b/gnu/packages/kde-plasma.scm
@@ -154,8 +154,7 @@ call it if it is not associated to a terminal.")
        (modify-phases %standard-phases
          (add-before 'check 'check-setup
            (lambda* (#:key inputs outputs #:allow-other-keys)
-             (system (string-append (assoc-ref inputs "xorg-server")
-                                   "/bin/Xvfb :1 -screen 0 640x480x24 &"))
+             (system "Xvfb :1 -screen 0 640x480x24 &")
              (setenv "DISPLAY" ":1")
              #t))
          (delete 'check)
diff --git a/gnu/packages/kde.scm b/gnu/packages/kde.scm
index aff3ed51ed..3fa15f9bf5 100644
--- a/gnu/packages/kde.scm
+++ b/gnu/packages/kde.scm
@@ -7,7 +7,7 @@
 ;;; Copyright © 2018 Gábor Boskovits <boskovits@gmail.com>
 ;;; Copyright © 2019 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;; Copyright © 2018, 2019, 2020 Hartmut Goebel <h.goebel@crazy-compilers.com>
-;;; Copyright © 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2020 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2020, 2021 Michael Rohleder <mike@rohleder.de>
 ;;; Copyright © 2020 Prafulla Giri <pratheblackdiamond@gmail.com>
@@ -721,11 +721,9 @@ different notification systems.")
                       ;; FIXME: <kcmutils_version.h> is not found during one
                       ;; of the compilation steps without this hack.
                       (setenv "CPLUS_INCLUDE_PATH"
-                              (string-append (assoc-ref inputs "kcmutils")
-                                             "/include/KF5:"
-                                             (or (getenv "CPLUS_INCLUDE_PATH")
-                                                 "")))
-                      #t)))
+                              (string-append
+                               (search-input-directory inputs "include/KF5")
+                               ":" (or (getenv "CPLUS_INCLUDE_PATH") ""))))))
        #:tests? #f)) ; tests fail hard in our build environment
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
diff --git a/gnu/packages/kerberos.scm b/gnu/packages/kerberos.scm
index 20ed94b33b..5065f3be17 100644
--- a/gnu/packages/kerberos.scm
+++ b/gnu/packages/kerberos.scm
@@ -10,6 +10,7 @@
 ;;; Copyright © 2017 Alex Vong <alexvong1995@gmail.com>
 ;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -41,6 +42,7 @@
   #:use-module (gnu packages compression)
   #:use-module (gnu packages readline)
   #:use-module (gnu packages sqlite)
+  #:use-module (gnu packages tcl)
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages tls)
   #:use-module ((guix licenses) #:prefix license:)
@@ -52,7 +54,7 @@
 (define-public mit-krb5
   (package
     (name "mit-krb5")
-    (version "1.18")
+    (version "1.19.1")
     (source (origin
               (method url-fetch)
               (uri (list
@@ -62,15 +64,17 @@
                     (string-append "https://kerberos.org/dist/krb5/"
                                    (version-major+minor version)
                                    "/krb5-" version ".tar.gz")))
-              (patches (search-patches "mit-krb5-qualify-short-hostnames.patch"
-                                       "mit-krb5-hurd.patch"))
+              (patches (search-patches "mit-krb5-hurd.patch"))
               (sha256
                (base32
-                "121c5xsy3x0i4wdkrpw62yhvji6virbh6n30ypazkp0isws3k4bk"))))
+                "02xjpsfy84l6v7vjlxzhrl6mx2zrmxz0v01w2j33bv73nxzgh5ps"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("bison" ,bison)
-       ("perl" ,perl)))
+       ("perl" ,perl)
+       ("tcl" ,tcl)))                   ;required for some tests
+    (inputs
+     `(("openssl" ,openssl)))
     (arguments
      `(;; XXX: On 32-bit systems, 'kdb5_util' hangs on an fcntl/F_SETLKW call
        ;; while running the tests in 'src/tests'. Also disable tests when
@@ -94,20 +98,14 @@
        (modify-phases %standard-phases
          (add-after 'unpack 'enter-source-directory
            (lambda _
-             (chdir "src")
-             #t))
+             (chdir "src")))
          (add-before 'check 'pre-check
            (lambda* (#:key inputs native-inputs #:allow-other-keys)
              (let ((perl (assoc-ref (or native-inputs inputs) "perl")))
                (substitute* "plugins/kdb/db2/libdb2/test/run.test"
                  (("/bin/cat") (string-append perl "/bin/perl"))
                  (("D/bin/sh") (string-append "D" (which "sh")))
-                 (("bindir=/bin/.") (string-append "bindir=" perl "/bin"))))
-
-             ;; avoid service names since /etc/services is unavailable
-             (substitute* "tests/resolve/Makefile"
-               (("-p telnet") "-p 23"))
-             #t)))))
+                 (("bindir=/bin/.") (string-append "bindir=" perl "/bin")))))))))
     (synopsis "MIT Kerberos 5")
     (description
      "Massachusetts Institute of Technology implementation of Kerberos.
diff --git a/gnu/packages/kodi.scm b/gnu/packages/kodi.scm
index b3dc96f925..0ed5d829fb 100644
--- a/gnu/packages/kodi.scm
+++ b/gnu/packages/kodi.scm
@@ -348,8 +348,7 @@ alternatives. In compilers, this can reduce the cascade of secondary errors.")
 
              (substitute* "xbmc/platform/linux/LinuxTimezone.cpp"
                (("/usr/share/zoneinfo")
-                (string-append (assoc-ref inputs "tzdata")
-                               "/share/zoneinfo")))
+                (search-input-directory inputs "share/zoneinfo")))
 
              ;; Don't phone home to check for updates.
              (substitute* "system/addon-manifest.xml"
diff --git a/gnu/packages/language.scm b/gnu/packages/language.scm
index 861a92505f..561c399eeb 100644
--- a/gnu/packages/language.scm
+++ b/gnu/packages/language.scm
@@ -130,8 +130,7 @@
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (substitute* "configure.ac"
                (("/usr/share/anthy/anthy.dic")
-                (string-append (assoc-ref inputs "anthy")
-                               "/share/anthy/anthy.dic")))
+                (search-input-file inputs "/share/anthy/anthy.dic")))
              (substitute* "configure.ac"
                (("/usr/bin:\\$GTK3_LIBDIR/libgtk-3-0")
                 (string-append (assoc-ref inputs "gtk+:bin")
@@ -975,10 +974,11 @@ suitable for both the desktop and mobile devices.")
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "tegakigtk/fakekey.py"
                  (("libX11.so.6" so)
-                  (string-append (assoc-ref inputs "libx11") "/lib/" so))
+                  (search-input-file inputs
+                                     (string-append "/lib/" so)))
                  (("libXtst.so.6" so)
-                  (string-append (assoc-ref inputs "libxtst") "/lib/" so)))
-               #t))))))
+                  (search-input-file inputs
+                                     (string-append "/lib/" so))))))))))
     (inputs ; required for sending key strokes
      `(("libx11" ,libx11)
        ("libxtst" ,libxtst)))
diff --git a/gnu/packages/ld-wrapper.in b/gnu/packages/ld-wrapper.in
index 2b68b87fb9..0d53e746af 100644
--- a/gnu/packages/ld-wrapper.in
+++ b/gnu/packages/ld-wrapper.in
@@ -11,11 +11,12 @@
 # <https://lists.gnu.org/archive/html/guile-devel/2016-03/msg00000.html>.
 
 unset GUILE_LOAD_COMPILED_PATH
+unset GUILE_SYSTEM_COMPILED_PATH
 main="(@ (gnu build-support ld-wrapper) ld-wrapper)"
 exec @GUILE@ -c "(load-compiled \"@SELF@.go\") (apply $main (cdr (command-line)))" "$@"
 !#
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2020 Marius Bakke <mbakke@fastmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
diff --git a/gnu/packages/less.scm b/gnu/packages/less.scm
index 32133943ae..c9b18ea36b 100644
--- a/gnu/packages/less.scm
+++ b/gnu/packages/less.scm
@@ -85,12 +85,11 @@ text editors.")
                     (lambda* (#:key inputs #:allow-other-keys)
                       (substitute* "lesspipe.sh"
                         (("tput colors")
-                         (string-append (assoc-ref inputs "ncurses")
-                                        "/bin/tput colors"))
+                         (string-append (search-input-file inputs "/bin/tput")
+                                        " colors"))
                         (("file -")
-                         (string-append (assoc-ref inputs "file")
-                                        "/bin/file -")))
-                      #t)))))
+                         (string-append (search-input-file inputs "/bin/file")
+                                        " -"))))))))
     (inputs
      `(("file" ,file)
        ("ncurses" ,ncurses)))  ; for tput
diff --git a/gnu/packages/libevent.scm b/gnu/packages/libevent.scm
index 0e683570d3..0ca903f5c2 100644
--- a/gnu/packages/libevent.scm
+++ b/gnu/packages/libevent.scm
@@ -41,7 +41,7 @@
 (define-public libevent
   (package
     (name "libevent")
-    (version "2.1.11")
+    (version "2.1.12")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -49,12 +49,13 @@
                     version "-stable/libevent-" version "-stable.tar.gz"))
               (sha256
                (base32
-                "0g988zqm45sj1hlhhz4il5z4dpi5dl74hzjwzl4md37a09iaqnx6"))))
+                "1fq30imk8zd26x8066di3kpc5zyfc5z6frr3zll685zcx4dxxrlj"))))
     (build-system gnu-build-system)
     (outputs '("out" "bin"))
     (arguments
      ;; This skips some of the tests which fail on armhf and aarch64.
-     '(#:configure-flags '("--disable-libevent-regress")))
+     '(#:configure-flags '("--disable-libevent-regress"
+                           "--disable-openssl")))
     (inputs
      `(("python" ,python-wrapper)))     ;for 'event_rpcgen.py'
     (native-inputs
@@ -76,7 +77,7 @@ loop.")
 (define-public libev
   (package
     (name "libev")
-    (version "4.31")
+    (version "4.33")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://dist.schmorp.de/libev/Attic/libev-"
@@ -84,7 +85,7 @@ loop.")
                                   ".tar.gz"))
               (sha256
                (base32
-                "0nkfqv69wfyy2bpga4d53iqydycpik8jp8x6q70353hia8mmv1gd"))))
+                "1sjs4324is7fp21an4aas2z4dwsvs6z4xwrmp72vwpq1s6wbfzjh"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags '("--disable-static")))
@@ -102,21 +103,20 @@ limited support for fork events.")
 (define-public libuv
   (package
     (name "libuv")
-    (version "1.35.0")
+    (version "1.41.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://dist.libuv.org/dist/v" version
                                   "/libuv-v" version ".tar.gz"))
               (sha256
                (base32
-                "0126mfmaw3s92dsga60sydgwjmzwg9cd36n127pydmisah17v50f"))))
+                "0zb818sjwnxn5yv3qvkxaprjf037yqmjipk5i3a8rg1q4izhrnv5"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags '("--disable-static")
        ;; XXX: Some tests want /dev/tty, attempt to make connections, etc.
        #:tests? #f))
-    ;; TODO replace with autoconf on core-updates
-    (native-inputs `(("autoconf" ,autoconf-wrapper)
+    (native-inputs `(("autoconf" ,autoconf)
                      ("automake" ,automake)
                      ("libtool" ,libtool)
 
diff --git a/gnu/packages/libffi.scm b/gnu/packages/libffi.scm
index d62a1588c1..b0a66c11c5 100644
--- a/gnu/packages/libffi.scm
+++ b/gnu/packages/libffi.scm
@@ -2,11 +2,11 @@
 ;;; Copyright © 2012, 2013, 2014, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Federico Beffa <beffa@fbengineering.ch>
 ;;; Copyright © 2015, 2019 Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>
-;;; Copyright © 2016, 2017, 2020 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2017, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016, 2017 Ben Woodcroft <donttrustben@gmail.com>
 ;;; Copyright © 2017, 2019, 2020 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
-;;; Copyright © 2019 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2019, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2020 John Doe <dftxbs3e@free.fr>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -51,45 +51,15 @@
                               name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0mi0cpf8aa40ljjmzxb7im6dbj45bb0kllcd09xgmp834y9agyvj"))))
+                "0mi0cpf8aa40ljjmzxb7im6dbj45bb0kllcd09xgmp834y9agyvj"))
+              (patches (search-patches "libffi-3.3-powerpc-fixes.patch"
+                                       "libffi-float128-powerpc64le.patch"))))
     (build-system gnu-build-system)
     (arguments
      `(;; Prevent the build system from passing -march and -mtune to the
        ;; compiler.  See "ax_cc_maxopt.m4" and "ax_gcc_archflag.m4".
-       #:configure-flags '("--enable-portable-binary" "--without-gcc-arch")
-
-       ;; TODO: Inline patches on next rebuild cycle.
-       ,@(if (string-prefix? "powerpc-" (or (%current-target-system)
-                                            (%current-system)))
-             '(#:phases (modify-phases %standard-phases
-                          (add-after 'unpack 'apply-patch
-                            (lambda* (#:key inputs #:allow-other-keys)
-                              (let ((patch (assoc-ref inputs
-                                                      "powerpc-patch")))
-                                (invoke "patch" "--force" "-p1"
-                                        "-i" patch))))))
-             '())
-       ,@(if (string-prefix? "powerpc64le-" (or (%current-target-system)
-                                                (%current-system)))
-             '(#:phases (modify-phases %standard-phases
-                          (add-after 'unpack 'apply-patch2
-                            (lambda* (#:key inputs #:allow-other-keys)
-                              (let ((patch (assoc-ref inputs
-                                                      "powerpc64le-patch")))
-                                (invoke "patch" "--force" "-p1"
-                                        "-i" patch))))))
-             '())))
-    (inputs
-     (cond
-      ((string-prefix? "powerpc-" (or (%current-target-system)
-                                        (%current-system)))
-       `(("powerpc-patch" ,@(search-patches
-                             "libffi-3.3-powerpc-fixes.patch"))))
-      ((string-prefix? "powerpc64le-" (or (%current-target-system)
-                                          (%current-system)))
-       `(("powerpc64le-patch" ,@(search-patches
-                                 "libffi-float128-powerpc64le.patch"))))
-      (else '())))
+       #:configure-flags '("--enable-portable-binary"
+                           "--without-gcc-arch")))
     (outputs '("out" "debug"))
     (synopsis "Foreign function call interface library")
     (description
@@ -128,20 +98,10 @@ conversions for values passed between the two languages.")
      `(("pkg-config" ,pkg-config)
        ("python-pytest" ,python-pytest)))
     (arguments
-     `(#:modules ((ice-9 ftw)
-                  (srfi srfi-26)
-                  (guix build utils)
-                  (guix build python-build-system))
-       #:phases
+     `(#:phases
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH"
-                     (string-append
-                      (getenv "PYTHONPATH")
-                      ":" (getcwd) "/build/"
-                      (car (scandir "build" (cut string-prefix? "lib." <>)))))
-
              ;; XXX The "normal" approach of setting CC and friends does
              ;; not work here.  Is this the correct way of doing things?
              (substitute* "testing/embedding/test_basic.py"
@@ -152,8 +112,7 @@ conversions for values passed between the two languages.")
                                "linker_so='gcc -shared')")))
              (substitute* "testing/cffi0/test_ownlib.py"
                (("\"cc testownlib") "\"gcc testownlib"))
-             (invoke "py.test" "-v" "c/" "testing/")
-             #t))
+             (invoke "py.test" "-v" "c/" "testing/")))
          (add-before 'check 'patch-paths-of-dynamically-loaded-libraries
            (lambda* (#:key inputs #:allow-other-keys)
              ;; Shared libraries should be referred by their absolute path as
@@ -176,8 +135,7 @@ conversions for values passed between the two languages.")
                   (format #f "lib_m = ['~a']" libm)))
                (substitute* "c/test_c.py"
                  (("find_and_load_library\\(['\"]{1}c['\"]{1}")
-                  (format #f "find_and_load_library('~a'" libc)))
-               #t))))))
+                  (format #f "find_and_load_library('~a'" libc)))))))))
     (home-page "https://cffi.readthedocs.io/")
     (synopsis "Foreign function interface for Python")
     (description "Foreign Function Interface for Python calling C code.")
diff --git a/gnu/packages/libidn.scm b/gnu/packages/libidn.scm
index 8731ed3f83..b2234ff126 100644
--- a/gnu/packages/libidn.scm
+++ b/gnu/packages/libidn.scm
@@ -1,10 +1,11 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2012 Andreas Enge <andreas@enge.fr>
-;;; Copyright © 2016, 2017 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2017, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2017 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2017 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2020 Michael Rohleder <mike@rohleder.de>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -33,14 +34,14 @@
 (define-public libidn
   (package
    (name "libidn")
-   (version "1.35")
+   (version "1.37")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnu/libidn/libidn-" version
                                 ".tar.gz"))
             (sha256
              (base32
-              "07pyy0afqikfq51z5kbzbj9ldbd12mri0zvx0mfv3ds6bc0g26pi"))))
+              "1hljls9rkilh04dwiwg388wk8djkac8idijrdysqq2nqbh6rg3iw"))))
    (build-system gnu-build-system)
    ;; FIXME: No Java and C# libraries are currently built.
    (arguments
@@ -59,16 +60,14 @@ Java libraries.")
 (define-public libidn2
   (package
     (name "libidn2")
-    (version "2.3.0")
+    (version "2.3.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnu/libidn/" name "-" version
-                                  ".tar.lz"))
+                                  ".tar.gz"))
               (sha256
                (base32
-                "14yw4w37ya6rcqa7h6p44x6711dwgq2j22xg6k79ybbf04sj88kb"))))
-    (native-inputs
-     `(("lzip" ,lzip)))
+                "0b8gsksj2g9f4iywwdma3v4jcg7i9rqvdxfmclwvbf1n72a89xla"))))
     (inputs
      `(("libunistring" ,libunistring)))
     (build-system gnu-build-system)
diff --git a/gnu/packages/libreoffice.scm b/gnu/packages/libreoffice.scm
index 0dcdf46ff1..c1e7a58c59 100644
--- a/gnu/packages/libreoffice.scm
+++ b/gnu/packages/libreoffice.scm
@@ -6,7 +6,7 @@
 ;;; Copyright © 2017 Thomas Danckaert <post@thomasdanckaert.be>
 ;;; Copyright © 2017–2021 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Andy Wingo <wingo@igalia.com>
-;;; Copyright © 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2017, 2018, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017, 2018, 2019 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2017 Rutger Helling <rhelling@mykolab.com>
 ;;; Copyright © 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
@@ -1228,10 +1228,7 @@ converting QuarkXPress file format.  It supports versions 3.1 to 4.1.")
              (substitute* '("shell/source/unix/exec/shellexec.cxx"
                             "shell/source/unix/misc/senddoc.sh")
                (("/usr/bin/xdg-open")
-                (string-append (assoc-ref inputs "xdg-utils")
-                               "/bin/xdg-open")))
-
-             #t))
+                (search-input-file inputs "/bin/xdg-open")))))
          (add-after 'install 'reset-zip-timestamps
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out")))
diff --git a/gnu/packages/libsigsegv.scm b/gnu/packages/libsigsegv.scm
index 927a12f4cf..627447e876 100644
--- a/gnu/packages/libsigsegv.scm
+++ b/gnu/packages/libsigsegv.scm
@@ -26,14 +26,14 @@
 (define-public libsigsegv
   (package
    (name "libsigsegv")
-   (version "2.12")
+   (version "2.13")
    (source (origin
             (method url-fetch)
             (uri (string-append
                   "mirror://gnu/libsigsegv/libsigsegv-"
                   version ".tar.gz"))
             (sha256
-             (base32 "1dlhqf4igzpqayms25lkhycjq1ccavisx8cnb3y4zapbkqsszq9s"))))
+             (base32 "06c1qjiv69hjvbq06mcxdi5hzfadhy28sa83zxspqpxhfr0ywy5y"))))
    (build-system gnu-build-system)
    (home-page "https://www.gnu.org/software/libsigsegv/")
    (synopsis "Library for handling page faults")
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index 88ee89e717..415cb4e026 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -22,7 +22,7 @@
 ;;; Copyright © 2017, 2018, 2020 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2017 José Miguel Sánchez García <jmi2k@openmailbox.com>
 ;;; Copyright © 2017 Gábor Boskovits <boskovits@gmail.com>
-;;; Copyright © 2017, 2019 Mathieu Othacehe <m.othacehe@gmail.com>
+;;; Copyright © 2017, 2019, 2021 Mathieu Othacehe <othacehe@gnu.org>
 ;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
 ;;; Copyright © 2017, 2018, 2019 Rutger Helling <rhelling@mykolab.com>
 ;;; Copyright © 2017 nee <nee-git@hidamari.blue>
@@ -142,10 +142,10 @@
   #:use-module (gnu packages xdisorg)
   #:use-module (gnu packages xorg)
   #:use-module (gnu packages groff)
-  #:use-module (gnu packages rsync)
   #:use-module (gnu packages selinux)
   #:use-module (gnu packages swig)
   #:use-module (guix build-system cmake)
+  #:use-module (guix build-system copy)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system go)
   #:use-module (guix build-system meson)
@@ -542,14 +542,12 @@ corresponding UPSTREAM-SOURCE (an origin), using the given DEBLOB-SCRIPTS."
                      ,@(if (version>=? version "4.16")
                            `(("flex" ,flex)
                              ("bison" ,bison))
-                           '())
-                     ,@(if (version>=? version "5.3")
-                           `(("rsync" ,rsync))
                            '())))
     (arguments
      `(#:modules ((guix build gnu-build-system)
                   (guix build utils)
-                  (srfi srfi-1))
+                  (srfi srfi-1)
+                  (ice-9 match))
        #:phases
        (modify-phases %standard-phases
          (delete 'configure)
@@ -560,32 +558,37 @@ corresponding UPSTREAM-SOURCE (an origin), using the given DEBLOB-SCRIPTS."
                               (%current-system))))
                    (defconfig ,(system->defconfig
                                 (or (%current-target-system)
-                                    (%current-system)))))
+                                    (%current-system))))
+                   (make-target ,(if (version>=? version "5.3")
+                                     "headers"
+                                     "headers_check")))
                (setenv "ARCH" arch)
                (format #t "`ARCH' set to `~a'~%" (getenv "ARCH"))
                (invoke "make" defconfig)
-               (invoke "make" "mrproper" "headers_check"))))
+               (invoke "make" "mrproper" make-target))))
          (replace 'install
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out")))
-               (invoke "make"
-                       (string-append "INSTALL_HDR_PATH=" out)
-                       "headers_install")
+
+               ;; Mimic the quiet_cmd_headers_install target to avoid a
+               ;; dependency on rsync.
+               (for-each (lambda (file)
+                           (let ((destination (string-append
+                                               out "/include/"
+                                               ;; Drop the 'usr/include' prefix.
+                                               (match (string-split file #\/)
+                                                 ((_ _ path ...)
+                                                  (string-join path "/"))))))
+                             (format #t "`~a' -> `~a'~%" file destination)
+                             (install-file file (dirname destination))))
+                         (find-files "usr/include" "\\.h$"))
 
                (mkdir (string-append out "/include/config"))
                (call-with-output-file
                    (string-append out
                                   "/include/config/kernel.release")
                  (lambda (p)
-                   (format p "~a-default~%" ,version)))
-
-               ;; Remove the '.install' and '..install.cmd' files; the
-               ;; latter contains store paths, which pulls in bootstrap
-               ;; binaries in the build environment, and prevents bit
-               ;; reproducibility for the bootstrap binaries.
-               (for-each delete-file (find-files out "\\.install"))
-
-               #t))))
+                   (format p "~a-default~%" ,version)))))))
        #:allowed-references ()
        #:tests? #f))
     (home-page "https://www.gnu.org/software/linux-libre/")
@@ -623,11 +626,11 @@ corresponding UPSTREAM-SOURCE (an origin), using the given DEBLOB-SCRIPTS."
 
 ;; The following package is used in the early bootstrap, and thus must be kept
 ;; stable and with minimal build requirements.
-(define-public linux-libre-headers-5.4.20
-  (make-linux-libre-headers "5.4.20"
-                            "1qxhf6dmcwjblzx8fgn6vr10p38xw10iwh6d1y1v1mxb25y30b47"))
+(define-public linux-libre-headers-5.10.35
+  (make-linux-libre-headers "5.10.35"
+                            "0q2rnchad55d49f3rajrkazz0fcjv1irwrdb1hwjnl01fzm2gjk3"))
 
-(define-public linux-libre-headers linux-libre-headers-5.4.20)
+(define-public linux-libre-headers linux-libre-headers-5.10.35)
 
 
 ;;;
@@ -1715,7 +1718,7 @@ providing the system administrator with some help in common tasks.")
 (define-public util-linux
   (package
     (name "util-linux")
-    (version "2.35.1")
+    (version "2.37.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://kernel.org/linux/utils/"
@@ -1723,7 +1726,7 @@ providing the system administrator with some help in common tasks.")
                                   "util-linux-" version ".tar.xz"))
               (sha256
                (base32
-                "1yfpy6bkab4jw61mpx48gfy24yrqp4a7arvpis8csrkk53fkxpnr"))
+                "0xkb7vw2040zi4m0sbhs5qn5l8nrq4xsf4sdxf3cy9mpachd8jwf"))
               (patches (search-patches "util-linux-tests.patch"))
               (modules '((guix build utils)))
               (snippet
@@ -1741,7 +1744,10 @@ providing the system administrator with some help in common tasks.")
                "static"))       ;2.9 MiB static .a libraries
     (arguments
      `(#:configure-flags (list "--disable-use-tty-group"
-                               "--enable-fs-paths-default=/run/current-system/profile/sbin"
+                               (string-append
+                                "--enable-fs-paths-default="
+                                "/run/setuid-programs"
+                                ":/run/current-system/profile/sbin")
                                ;; Don't try to chown root:root mount and umount
                                "--disable-makeinstall-chown"
                                "--localstatedir=/var"
@@ -1767,44 +1773,37 @@ providing the system administrator with some help in common tasks.")
                         ;; libraries below $exec_prefix when $libdir does not
                         ;; match any of the "usual" locations.  Fix that.
                         (("usrlib_execdir='\\$\\{exec_prefix\\}'\\$libdir")
-                         "usrlib_execdir=$libdir"))
-                      #t))
+                         "usrlib_execdir=$libdir"))))
                   (add-before 'build 'set-umount-file-name
                     (lambda* (#:key outputs #:allow-other-keys)
                       ;; Tell 'eject' the right file name of 'umount'.
                       (let ((out (assoc-ref outputs "out")))
                         (substitute* "sys-utils/eject.c"
                           (("\"/bin/umount\"")
-                           (string-append "\"" out "/bin/umount\"")))
-                        #t)))
+                           (string-append "\"" out "/bin/umount\""))))))
                   (add-before 'check 'pre-check
-                    (lambda* (#:key inputs outputs #:allow-other-keys)
-                      (let ((out (assoc-ref outputs "out"))
-                            (net (assoc-ref inputs "net-base")))
+                    (lambda* (#:key native-inputs inputs #:allow-other-keys)
+                      (let ((services (search-input-file (or native-inputs inputs)
+                                                         "etc/services")))
                         ;; Change the test to refer to the right file.
                         (substitute* "tests/ts/misc/mcookie"
                           (("/etc/services")
-                           (string-append net "/etc/services")))
+                           services))
 
                         ;; The C.UTF-8 locale does not exist in our libc.
                         (substitute* "tests/ts/column/invalid-multibyte"
-                          (("C\\.UTF-8") "en_US.utf8"))
-                        #t)))
-                  ;; TODO: Remove the conditional on the next rebuild cycle.
-                  ,@(if (string-prefix? "arm" (%current-system))
-                        '((add-before 'check 'disable-setarch-test
-                            (lambda _
-                              ;; The setarch tests are unreliable in QEMU's
-                              ;; user-mode emulation, which is our primary
-                              ;; method of building ARMv7 packages.
-                              ;; <https://github.com/karelzak/util-linux/issues/601>
-                              (substitute* "tests/ts/misc/setarch"
-                                (("ts_init_subtest.*" all)
-                                 (string-append
-                                  all "\n"
-                                  "ts_skip \"setarch tests are unreliable under QEMU\"")))
-                              #t)))
-                        '())
+                          (("C\\.UTF-8") "en_US.utf8")))))
+                  (add-before 'check 'disable-setarch-test
+                    (lambda _
+                      ;; The setarch tests are unreliable in QEMU's user-mode
+                      ;; emulation, which is our primary method of building
+                      ;; ARMv7 packages.  See
+                      ;; <https://github.com/karelzak/util-linux/issues/601>.
+                      (substitute* "tests/ts/misc/setarch"
+                        (("ts_init_subtest.*" all)
+                         (string-append
+                          all "\n"
+                          "ts_skip \"setarch tests are unreliable under QEMU\"")))))
                   (add-after 'install 'move-static-libraries
                     (lambda* (#:key outputs #:allow-other-keys)
                       (let ((lib    (assoc-ref outputs "lib"))
@@ -1823,9 +1822,7 @@ providing the system administrator with some help in common tasks.")
                           ;; files so that Libtool does the right thing when both
                           ;; the shared and static library is available.
                           (substitute* (find-files "lib" "\\.la$")
-                            (("old_library=.*") "old_library=''\n")))
-
-                        #t)))
+                            (("old_library=.*") "old_library=''\n"))))))
                   (add-after 'install 'adjust-pkg-config-files
                     (lambda* (#:key outputs #:allow-other-keys)
                       (let ((lib (assoc-ref outputs "lib")))
@@ -1833,18 +1830,14 @@ providing the system administrator with some help in common tasks.")
                         ;; the pkg-config files to avoid a cyclic reference on "out".
                         (substitute* (find-files (string-append lib "/lib/pkgconfig")
                                                  "\\.pc$")
-                          (("^(exec_)?prefix=.*") "")))
-                        #t)))))
-    (inputs `(("zlib" ,zlib)
-              ("ncurses" ,ncurses)
-
-              ;; XXX: This is so that the 'pre-check' phase can find it.
-              ,@(if (%current-target-system)
-                    `(("net-base" ,net-base))
-                    '())))
+                          (("^(exec_)?prefix=.*") ""))))))))
+    (inputs
+     (list file                         ;for libmagic
+           ncurses
+           zlib))
     (native-inputs
-     `(("perl" ,perl)
-       ("net-base" ,net-base)))         ;for tests
+     (list net-base                     ;for tests
+           perl))
     (home-page "https://www.kernel.org/pub/linux/utils/util-linux/")
     (synopsis "Collection of utilities for the Linux kernel")
     (description "Util-linux is a diverse collection of Linux kernel
@@ -2286,24 +2279,96 @@ an executed process and the signals received by that process.  It can also
 intercept and print the system calls executed by the program.")
     (license license:gpl2+)))
 
+(define-public alsa-ucm-conf
+  (package
+    (name "alsa-ucm-conf")
+    (version "1.2.4")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "ftp://ftp.alsa-project.org/pub/lib/" name "-"
+                    version ".tar.bz2"))
+              (sha256
+               (base32
+                "0h6kzi1cfdqyxp4pwpqh5wb89c8s9wrgix315bvamffwfxf56frc"))))
+    (build-system copy-build-system)
+    (arguments
+     '(#:install-plan
+       '(("ucm" "share/alsa/ucm")
+         ("ucm2" "share/alsa/ucm2"))))
+    (home-page "https://www.alsa-project.org/wiki/Main_Page")
+    (synopsis "The Advanced Linux Sound Architecture Use Case Manager")
+    (description
+     "This package contains Advanced Linux Sound Architecture Use Case Manager
+configuration of audio input/output names and routing for specific audio
+hardware.")
+    (license license:bsd-3)))
+
+(define-public alsa-topology-conf
+  (package
+    (name "alsa-topology-conf")
+    (version "1.2.4")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "ftp://ftp.alsa-project.org/pub/lib/" name "-"
+                    version ".tar.bz2"))
+              (sha256
+               (base32
+                "01zdg6q4s6d01k39z96wi4vbhrfw1i2g4yi5dijwfk6a5vjfdq2m"))))
+    (build-system copy-build-system)
+    (arguments
+     '(#:install-plan
+       '(("topology" "share/alsa/topology"))))
+    (home-page "https://www.alsa-project.org/wiki/Main_Page")
+    (synopsis "The Advanced Linux Sound Architecture libraries")
+    (description
+     "This package contains Advanced Linux Sound Architecture topology
+configuration files that can be used for specific audio hardware.")
+    (license license:bsd-3)))
+
 (define-public alsa-lib
   (package
     (name "alsa-lib")
     (version "1.2.4")
     (source (origin
-             (method url-fetch)
-             (uri (string-append
-                   "ftp://ftp.alsa-project.org/pub/lib/alsa-lib-"
-                   version ".tar.bz2"))
-             (sha256
-              (base32
-               "1xq8d48wfy59qw4x7383j32n8j5njndw5hcgnmlg9pvclphlnmgp"))))
+              (method url-fetch)
+              (uri (string-append
+                    "ftp://ftp.alsa-project.org/pub/lib/alsa-lib-"
+                    version ".tar.bz2"))
+              (sha256
+               (base32
+                "1xq8d48wfy59qw4x7383j32n8j5njndw5hcgnmlg9pvclphlnmgp"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags (list (string-append "LDFLAGS=-Wl,-rpath="
                                               (assoc-ref %outputs "out")
-                                              "/lib"))))
-    (home-page "https://www.alsa-project.org/")
+                                              "/lib"))
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'install 'pre-install
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((ucm
+                     (string-append (assoc-ref inputs "alsa-ucm-conf")))
+                    (topology
+                     (string-append (assoc-ref inputs "alsa-topology-conf")))
+                    (alsa
+                     (string-append (assoc-ref outputs "out") "/share/alsa"))
+                    (ucm-share
+                     (string-append ucm "/share/alsa/ucm"))
+                    (ucm2-share
+                     (string-append ucm "/share/alsa/ucm2"))
+                    (topology-share
+                     (string-append topology "/share/alsa/topology")))
+               (mkdir-p alsa)
+               (symlink ucm-share (string-append alsa "/ucm"))
+               (symlink ucm2-share (string-append alsa "/ucm2"))
+               (symlink topology-share (string-append alsa "/topology")))
+             #t)))))
+    (inputs
+     `(("alsa-ucm-conf" ,alsa-ucm-conf)
+       ("alsa-topology-conf" ,alsa-topology-conf)))
+    (home-page "https://www.alsa-project.org/wiki/Main_Page")
     (synopsis "The Advanced Linux Sound Architecture libraries")
     (description
      "The Advanced Linux Sound Architecture (ALSA) provides audio and
@@ -2715,10 +2780,10 @@ network hardware types (plipconfig, slattach) and advanced aspects of IP
 configuration (iptunnel, ipmaddr).")
       (license license:gpl2+))))
 
-(define-public libcap-2.31
+(define-public libcap
   (package
     (name "libcap")
-    (version "2.31")
+    (version "2.51")
     (source (origin
              (method url-fetch)
              (uri (string-append
@@ -2726,7 +2791,7 @@ configuration (iptunnel, ipmaddr).")
                    "libcap2/libcap-" version ".tar.xz"))
              (sha256
               (base32
-               "0ikwm0kngrqa4ci80lqnrkk17kg09q7dxrz28y0gm5qw3vj8s266"))))
+               "1ych13qc1mvzv8iscbims5b317vxcmy5ffpmfy98zk7bgamz62b6"))))
     (build-system gnu-build-system)
     (arguments '(#:phases
                  (modify-phases %standard-phases
@@ -2734,10 +2799,9 @@ configuration (iptunnel, ipmaddr).")
                             ;; Add $libdir to the RUNPATH of executables.
                             (lambda _
                               (substitute* "Make.Rules"
-                                (("LDFLAGS := #-g")
-                                 (string-append "LDFLAGS := -Wl,-rpath="
-                                                %output "/lib")))
-                              #t)))
+                                (("LDFLAGS \\?= #-g")
+                                 (string-append "LDFLAGS ?= -Wl,-rpath="
+                                                %output "/lib"))))))
                  #:test-target "test"
                  #:make-flags (list "lib=lib"
                                     (string-append "prefix="
@@ -2754,37 +2818,6 @@ Linux-based operating systems.")
     ;; License is BSD-3 or GPLv2, at the user's choice.
     (license license:gpl2)))
 
-;; libcap 2.31 has problems with newer kernels, so provide this newer variant.
-;; Keep the old libcap around to avoid rebuilding 'coreutils' and 'avahi'.
-;; To be merged with libcap on the next rebuild cycle.
-(define-public libcap
-  (package
-    (inherit libcap-2.31)
-    (version "2.45")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "mirror://kernel.org/linux/libs/security/linux-privs/"
-                    "libcap2/libcap-" version ".tar.xz"))
-              (sha256
-               (base32
-                "11ijmi7jik9iw6pdszc6bylhggghr8cza03bcrbhbqf0cpvkjrnn"))))
-    (arguments
-     (substitute-keyword-arguments (package-arguments libcap-2.31)
-       ((#:phases phases)
-        `(modify-phases ,phases
-           (replace 'configure
-             (lambda _
-               ;; Add $libdir to the RUNPATH of executables.
-               (substitute* "Make.Rules"
-                 (("LDFLAGS \\?= #-g")
-                  (string-append "LDFLAGS ?= -Wl,-rpath="
-                                 %output "/lib")))
-               #t))))))))
-
-(define-deprecated libcap/next libcap)
-(export libcap/next)
-
 (define-public bridge-utils
   (package
     (name "bridge-utils")
@@ -3102,11 +3135,12 @@ processes currently causing I/O.")
              ;; it refers to the right ones.
              (substitute* '("lib/mount_util.c" "util/mount_util.c")
                (("/bin/(u?)mount" _ maybe-u)
-                (string-append (assoc-ref inputs "util-linux")
-                               "/bin/" maybe-u "mount")))
-             (substitute* "util/mount.fuse.c"
-               (("/bin/sh" command)
-                (string-append (assoc-ref inputs "bash-minimal") command)))
+                (search-input-file inputs
+                                   (string-append "bin/"
+                                                  maybe-u "mount"))))
+             (substitute* '("util/mount.fuse.c")
+               (("/bin/sh")
+                (search-input-file inputs "/bin/sh")))
 
              ;; This hack leads libfuse to search for 'fusermount' in
              ;; $PATH, where it may find a setuid-root binary, instead of
@@ -3468,7 +3502,7 @@ to use Linux' inotify mechanism, which allows file accesses to be monitored.")
 (define-public kmod
   (package
     (name "kmod")
-    (version "27")
+    (version "29")
     (source (origin
               (method url-fetch)
               (uri
@@ -3476,16 +3510,19 @@ to use Linux' inotify mechanism, which allows file accesses to be monitored.")
                               "kmod-" version ".tar.xz"))
               (sha256
                (base32
-                "035wzfzjx4nwidk747p8n085mgkvy531ppn16krrajx2dkqzply1"))
+                "0am54mi5rk72g5q7k6l6f36gw3r9vwgjmyna43ywcjhqmakyx00b"))
               (patches (search-patches "kmod-module-directory.patch"))))
     (build-system gnu-build-system)
     (native-inputs
-     `(("pkg-config" ,pkg-config)))
+     `(("pkg-config" ,pkg-config)
+       ;; For tests.
+       ("zstd" ,zstd)))
     (inputs
      `(("xz" ,xz)
-       ("zlib" ,zlib)))
+       ("zlib" ,zlib)
+       ("zstd-lib" ,zstd "lib")))
     (arguments
-     `(#:configure-flags '("--with-xz" "--with-zlib"
+     `(#:configure-flags '("--with-xz" "--with-zlib" "--with-zstd"
                            "--disable-test-modules")
        #:phases
        (modify-phases %standard-phases
@@ -4191,27 +4228,28 @@ country-specific regulations for the wireless spectrum.")
              (substitute* '("prog/pwm/pwmconfig"
                             "prog/pwm/fancontrol")
                (("gnuplot")
-                (string-append (assoc-ref inputs "gnuplot")
-                               "/bin/gnuplot"))
+                (search-input-file inputs "/bin/gnuplot"))
                (("cat ")
-                (string-append (assoc-ref inputs "coreutils")
-                               "/bin/cat "))
+                (string-append (search-input-file inputs "/bin/cat")
+                               " "))
                (("e?grep " match)
-                (string-append (assoc-ref inputs "grep")
-                               "/bin/" match))
+                (string-append (search-input-file inputs
+                                                  (string-append
+                                                   "/bin/"
+                                                   (string-trim-right match)))
+                               " "))
                (("sed -e")
-                (string-append (assoc-ref inputs "sed")
-                               "/bin/sed -e"))
+                (string-append (search-input-file inputs "/bin/sed")
+                               " -e"))
                (("cut -d")
-                (string-append (assoc-ref inputs "coreutils")
-                               "/bin/cut -d"))
+                (string-append (search-input-file inputs "/bin/cut")
+                               " -d"))
                (("sleep ")
-                (string-append (assoc-ref inputs "coreutils")
-                               "/bin/sleep "))
+                (string-append (search-input-file inputs "/bin/sleep")
+                               " "))
                (("readlink -f")
-                (string-append (assoc-ref inputs "coreutils")
-                               "/bin/readlink -f")))
-             #t)))))
+                (string-append (search-input-file inputs "/bin/readlink")
+                               " -f"))))))))
     (home-page "https://hwmon.wiki.kernel.org/lm_sensors")
     (synopsis "Utilities to read temperature/voltage/fan sensors")
     (description
@@ -5109,7 +5147,7 @@ Bluetooth audio output devices like headphones or loudspeakers.")
                  (("hid2hci --method")
                   (string-append out "/lib/udev/hid2hci --method"))
                  (("/sbin/udevadm")
-                  (string-append (assoc-ref inputs "eudev") "/bin/udevadm")))
+                  (search-input-file inputs "/bin/udevadm")))
                #t))))))
     (native-inputs
      `(("pkg-config" ,pkg-config)
@@ -5813,6 +5851,7 @@ invocations of itself.")
     (native-inputs `(("pkg-config" ,pkg-config)))
     (arguments
      '(#:configure-flags (list "--disable-static"
+                               "--disable-ldconfig" ;not necessary
                                "--exec-prefix=${prefix}"
                                "--with-fuse=external" ;use our own FUSE
                                "--enable-mount-helper"
@@ -7642,15 +7681,11 @@ the superuser to make device nodes.")
           (lambda*  (#:key inputs #:allow-other-keys)
             (substitute* "scripts/fakeroot.in"
              (("getopt")
-              (string-append (assoc-ref inputs "util-linux")
-                             "/bin/getopt"))
+              (search-input-file inputs "/bin/getopt"))
              (("sed")
-              (string-append (assoc-ref inputs "sed")
-                             "/bin/sed"))
+              (search-input-file inputs "/bin/sed"))
              (("cut")
-              (string-append (assoc-ref inputs "coreutils")
-                             "/bin/cut")) )
-            #t))
+              (search-input-file inputs "/bin/cut")) )))
         (add-before 'configure 'setenv
           (lambda _
             (setenv "LIBS" "-lacl")
@@ -7751,10 +7786,8 @@ set as @code{LD_PRELOAD} to override the C library file system functions.")
          (replace 'build
            (lambda* (#:key inputs #:allow-other-keys)
              (with-directory-excursion "inputattach"
-               (invoke (string-append (assoc-ref inputs "gcc")
-                                      "/bin/gcc")
-                       "-O2" "-o" "inputattach" "inputattach.c"))
-             #t))
+               (invoke "gcc" "-O2" "-o" "inputattach"
+                       "inputattach.c"))))
          (delete 'check)
          (replace 'install
            (lambda* (#:key outputs #:allow-other-keys)
@@ -8073,7 +8106,7 @@ headers.")
                 (lambda (python-executable)
                   (format #t "Wrapping: ~A.~%" python-executable)
                   (wrap-program python-executable
-                    `("PYTHONPATH" ":" prefix
+                    `("GUIX_PYTHONPATH" ":" prefix
                       (,(string-append lib
                                        "/python"
                                        ,(version-major+minor
diff --git a/gnu/packages/lisp-xyz.scm b/gnu/packages/lisp-xyz.scm
index fe4c753c9b..a0a4270fd8 100644
--- a/gnu/packages/lisp-xyz.scm
+++ b/gnu/packages/lisp-xyz.scm
@@ -7249,7 +7249,7 @@ cl-plumbing libraries.")
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "src/lzlib.lisp"
                  (("liblz\\.so")
-                  (string-append (assoc-ref inputs "lzlib") "/lib/liblz.so")))
+                  (search-input-file inputs "/lib/liblz.so")))
                #t)))))
       (synopsis "Common Lisp library for lzip (de)compression")
       (description
@@ -7404,11 +7404,10 @@ function.")
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "src/init.lisp"
                  (("libgobject-2\\.0\\.so")
-                  (string-append (assoc-ref inputs "glib") "/lib/libgobject-2.0.so"))
+                  (search-input-file inputs "/lib/libgobject-2.0.so"))
                  (("libgirepository-1\\.0\\.so")
-                  (string-append (assoc-ref inputs "gobject-introspection")
-                                 "/lib/libgirepository-1.0.so")))
-               #t)))))
+                  (search-input-file inputs
+                                     "/lib/libgirepository-1.0.so"))))))))
       (synopsis "Common Lisp bindings to GObject Introspection")
       (description
        "This library is a bridge between Common Lisp and GObject
@@ -8566,8 +8565,7 @@ sacrificing much in the way of power.")
             (lambda* (#:key inputs #:allow-other-keys)
               (substitute* "hdf-cffi/hdf-cffi.lisp"
                 (("/usr/lib/i386-linux-gnu/hdf5/serial/libhdf5.so")
-                 (string-append (assoc-ref inputs "hdf5")
-                                "/lib/libhdf5.so")))
+                 (search-input-file inputs "/lib/libhdf5.so")))
               (substitute* "gsl-cffi/gsl-cffi.lisp"
                 (("define-foreign-library gsl-cffi" all)
                  (string-append all " (:unix "
@@ -8897,9 +8895,7 @@ has a small codebase that's easy to understand and use.")
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "lib.lisp"
                  (("/usr/lib/libuv.so")
-                  (string-append (assoc-ref inputs "libuv")
-                                 "/lib/libuv.so")))
-               #t))
+                  (search-input-file inputs "/lib/libuv.so")))))
            (add-after 'fix-paths 'fix-system-definition
              (lambda _
                (substitute* "cl-libuv.asd"
@@ -8957,12 +8953,9 @@ has a small codebase that's easy to understand and use.")
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "src/ssl/package.lisp"
                  (("libcrypto\\.so")
-                  (string-append (assoc-ref inputs "openssl")
-                                 "/lib/libcrypto.so"))
+                  (search-input-file inputs "/lib/libcrypto.so"))
                  (("libssl\\.so")
-                  (string-append (assoc-ref inputs "openssl")
-                                 "/lib/libssl.so")))
-               #t)))))
+                  (search-input-file inputs "/lib/libssl.so"))))))))
       (synopsis "Asynchronous operations for Common Lisp")
       (description
        "Cl-async is a library for general purpose, non-blocking programming in
@@ -12262,13 +12255,10 @@ and saving 2-dimensional pixel-based images.")
                                  "/share/fonts/truetype/")))
                (substitute* "Extensions/fontconfig/src/functions.lisp"
                  (("libfontconfig\\.so")
-                  (string-append (assoc-ref inputs "fontconfig")
-                                 "/lib/libfontconfig.so")))
+                  (search-input-file inputs "/lib/libfontconfig.so")))
                (substitute* "Extensions/harfbuzz/src/functions.lisp"
                  (("libharfbuzz\\.so")
-                  (string-append (assoc-ref inputs "harfbuzz")
-                                 "/lib/libharfbuzz.so")))
-               #t))
+                  (search-input-file inputs "/lib/libharfbuzz.so")))))
            (add-after 'unpack 'fix-build
              (lambda _
                ;; The cffi-grovel system does not get loaded automatically,
@@ -14419,9 +14409,7 @@ library are feedforward neural networks trained using backpropagation.")
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "src/libzstd.lisp"
                  (("libzstd\\.so")
-                  (string-append (assoc-ref inputs "zstd-lib")
-                                 "/lib/libzstd.so")))
-               #t)))))
+                  (search-input-file inputs "/lib/libzstd.so"))))))))
       (synopsis "Common Lisp library for Zstandard (de)compression")
       (description
        "This Common Lisp library provides functions for Zstandard
@@ -15647,7 +15635,7 @@ related C functions to get information about the mounted file system.")
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "src/unix/cl-diskspace-list-all-disks-with-df.lisp"
                  (("grep")
-                  (string-append (assoc-ref inputs "grep") "/bin/grep")))
+                  (search-input-file inputs "/bin/grep")))
                (substitute* "src/unix/cl-diskspace-list-all-disks-with-df.lisp"
                  (("/bin/df")
                   (which "df")))
@@ -15987,14 +15975,13 @@ compiled foreign library collection.")
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "gl/library.lisp"
                  (("libGL.so" all)
-                  (string-append (assoc-ref inputs "mesa") "/lib/" all)))
+                  (search-input-file inputs "/lib/libGL.so")))
                (substitute* "glu/library.lisp"
                  (("libGLU.so" all)
-                  (string-append (assoc-ref inputs "glu") "/lib/" all)))
+                  (search-input-file inputs "/lib/libGLU.so")))
                (substitute* "glut/library.lisp"
                  (("libglut.so" all)
-                  (string-append (assoc-ref inputs "freeglut") "/lib/" all)))
-               #t)))))
+                  (search-input-file inputs "/lib/libglut.so"))))))))
       (inputs
        `(("alexandria" ,sbcl-alexandria)
          ("cffi" ,sbcl-cffi)
@@ -16927,9 +16914,8 @@ Common Lisp.")
            (add-after 'unpack 'patch-libev-lib-path
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "src/lev.lisp"
-                 (("libev.so" all)
-                  (string-append (assoc-ref inputs "libev")
-                                        "/lib/" all))))))))
+                 (("libev.so" _)
+                  (search-input-file inputs "/lib/libev.so"))))))))
       (inputs
        `(("cffi" ,sbcl-cffi)
          ("libev" ,libev)))
@@ -17504,8 +17490,8 @@ and even allows the generic visualisation of graphs in this format.")
            (add-after 'unpack 'patch-glfw-lib-path
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "glfw-bindings.lisp"
-                 (("libglfw.so.3" all)
-                  (string-append (assoc-ref inputs "glfw") "/lib/" all))))))))
+                 (("libglfw.so.3" _)
+                  (search-input-file inputs "/lib/libglfw.so.3"))))))))
       (inputs
        `(("alexandria" ,sbcl-alexandria)
          ("cffi" ,sbcl-cffi)
diff --git a/gnu/packages/lisp.scm b/gnu/packages/lisp.scm
index 838742e1b2..58cc421ad7 100644
--- a/gnu/packages/lisp.scm
+++ b/gnu/packages/lisp.scm
@@ -5,7 +5,7 @@
 ;;; Copyright © 2016 Federico Beffa <beffa@fbengineering.ch>
 ;;; Copyright © 2016, 2017 Nikita <nikita@n0.is>
 ;;; Copyright © 2016, 2017 Andy Patterson <ajpatter@uwaterloo.ca>
-;;; Copyright © 2017, 2019 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2017, 2019, 2020 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2017, 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017, 2019–2021 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Benjamin Slade <slade@jnanam.net>
@@ -445,7 +445,7 @@ an interpreter, a compiler, a debugger, and much more.")
        ("ed" ,ed)
        ("inetutils" ,inetutils)         ;for hostname(1)
        ("texinfo" ,texinfo)
-       ("texlive" ,(texlive-union (list texlive-tex-texinfo)))
+       ("texlive" ,(texlive-updmap.cfg (list texlive-tex-texinfo)))
        ("which" ,which)
        ("zlib" ,zlib)))
     (arguments
@@ -517,10 +517,6 @@ an interpreter, a compiler, a debugger, and much more.")
                  (("\\(deftest grent\\.[12]" all)
                   (string-append "#+nil ;disabled by Guix\n" all))))
              #t))
-         ;; FIXME: the texlive-union insists on regenerating fonts.  It stores
-         ;; them in HOME, so it needs to be writeable.
-         (add-before 'build 'set-HOME
-           (lambda _ (setenv "HOME" "/tmp") #t))
          (replace 'build
            (lambda* (#:key outputs #:allow-other-keys)
              (setenv "CC" "gcc")
@@ -1212,12 +1208,11 @@ assembler, PEG) is less than 1MB.")
        (modify-phases %standard-phases
          (add-before 'install 'fix-utils-path
            (lambda* (#:key inputs #:allow-other-keys)
-             (let* ((coreutils (string-append (assoc-ref inputs "coreutils") "/bin/"))
-                    (cat (string-append coreutils "cat"))
-                    (paste (string-append coreutils "paste"))
-                    (sort (string-append coreutils "sort"))
-                    (basename (string-append coreutils "basename"))
-                    (sed (string-append (assoc-ref inputs "sed") "/bin/sed")))
+             (let* ((cat (search-input-file inputs "/bin/cat"))
+                    (paste (search-input-file inputs "/bin/paste"))
+                    (sort (search-input-file inputs "/bin/sort"))
+                    (basename (search-input-file inputs "/bin/basename"))
+                    (sed (search-input-file inputs "/bin/sed")))
                (substitute* "lisp-repl-core-dumper"
                  (("\\$\\(basename") (string-append "$(" basename))
                  (("\\<cat\\>") cat)
diff --git a/gnu/packages/llvm.scm b/gnu/packages/llvm.scm
index 575c63c713..4107117c76 100644
--- a/gnu/packages/llvm.scm
+++ b/gnu/packages/llvm.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014, 2016, 2018 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
-;;; Copyright © 2015, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016 Dennis Mungai <dmngaie@gmail.com>
 ;;; Copyright © 2016, 2018, 2019, 2020, 2021 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2017 Roel Janssen <roel@gnu.org>
@@ -490,7 +490,7 @@ output), and Binutils.")
     (build-system cmake-build-system)
     (outputs '("out" "opt-viewer"))
     (native-inputs
-     `(("python" ,python)
+     `(("python" ,python-wrapper)
        ("perl"   ,perl)))
     (inputs
      `(("libffi" ,libffi)))
@@ -571,11 +571,7 @@ of programming tools as well as libraries with equivalent functionality.")
       (uri (llvm-uri "llvm" version))
       (sha256
        (base32
-        "0s94lwil98w7zb7cjrbnxli0z7gklb312pkw74xs1d6zk346hgwi"))))
-    (native-inputs
-     `(;; TODO: Switch to Python 3 in the next rebuild cycle.
-       ("python" ,python-2)
-       ("perl"   ,perl)))))
+        "0s94lwil98w7zb7cjrbnxli0z7gklb312pkw74xs1d6zk346hgwi"))))))
 
 (define-public clang-runtime-11
   (clang-runtime-from-llvm
@@ -601,23 +597,23 @@ of programming tools as well as libraries with equivalent functionality.")
 (define-public llvm-10
   (package
     (inherit llvm-11)
-    (version "10.0.0")
+    (version "10.0.1")
     (source
      (origin
       (method url-fetch)
       (uri (llvm-uri "llvm" version))
       (sha256
        (base32
-        "1pwgm6cr0xr5a0hrbqs1zvsvvjvy0yq1y47c96804wcs795s90yz"))))))
+        "1wydhbp9kyjp5y0rc627imxgkgqiv3dfirbqil9dgpnbaw5y7n65"))))))
 
 (define-public clang-runtime-10
   (clang-runtime-from-llvm
    llvm-10
-   "0x9c531k6ww21s2mkdwqx1vbdjmx6d4wmfb8gdbj0wqa796sczba"))
+   "1yjqjri753w0fzmxcyz687nvd97sbc9rsqrxzpq720na47hwh3fr"))
 
 (define-public clang-10
   (clang-from-llvm llvm-10 clang-runtime-10
-                   "08fbxa2a0kr3ni35ckppj0kyvlcyaywrhpqwcdrdy0z900mhcnw8"
+                   "091bvcny2lh32zy8f3m9viayyhb2zannrndni7325rl85cwgr6pr"
                    #:patches '("clang-10.0-libc-search-path.patch")
                    #:tools-extra
                    (origin
@@ -626,7 +622,7 @@ of programming tools as well as libraries with equivalent functionality.")
                                              (package-version llvm-10)))
                      (sha256
                       (base32
-                       "074ija5s2jsdn0k035r2dzmryjmqxdnyg4xwvaqych2bazv8rpxc")))))
+                       "06n1yp638rh24xdxv9v2df0qajxbjz4w59b7dd4ky36drwmpi4yh")))))
 
 (define-public clang-toolchain-10
   (make-clang-toolchain clang-10))
@@ -859,14 +855,13 @@ of programming tools as well as libraries with equivalent functionality.")
              (add-after 'unpack 'find-rpc-includes
                (lambda* (#:key inputs #:allow-other-keys)
                  (setenv "CPATH"
-                         (string-append (assoc-ref inputs "libtirpc")
-                                        "/include/tirpc/:"
-                                        (or (getenv "CPATH") "")))
+                         (string-append
+                          (search-input-directory inputs "/include/tirpc")
+                          ":" (or (getenv "CPATH") "")))
                  (setenv "CPLUS_INCLUDE_PATH"
-                         (string-append (assoc-ref inputs "libtirpc")
-                                        "/include/tirpc/:"
-                                        (or (getenv "CPLUS_INCLUDE_PATH") "")))
-                 #t))))))
+                         (string-append
+                          (search-input-directory inputs "/include/tirpc")
+                          ":" (or (getenv "CPLUS_INCLUDE_PATH") "")))))))))
       (inputs
        `(("libtirpc" ,libtirpc)
          ("llvm" ,llvm-3.5))))))
diff --git a/gnu/packages/lua.scm b/gnu/packages/lua.scm
index 0ecc91294f..7cadba6392 100644
--- a/gnu/packages/lua.scm
+++ b/gnu/packages/lua.scm
@@ -1124,8 +1124,7 @@ shell command executions.")
               "1999bgrh52124a5g4qizav3x257ff2brjr855srpm1jv1nxzbygv"))))
    (build-system meson-build-system)
    (arguments
-    `(#:meson ,meson-0.55
-      ;; Tests are disabled for now due to an issue that affecs guix:
+    `(;; Tests are disabled for now due to an issue that affecs guix:
       ;; <https://gitlab.com/emilua/emilua/-/issues/22>
       #:configure-flags
       (list "-Denable_http=true"
@@ -1194,7 +1193,7 @@ enabled.")
          (delete 'configure)
          (add-before 'build 'patch-lua-calls
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((lua (string-append (assoc-ref inputs "lua") "/bin/lua")))
+             (let ((lua (search-input-file inputs "/bin/lua")))
                (setenv "LUA" lua)
                (substitute* "old/launcher.lua"
                  (("/usr/bin/env lua") lua))
@@ -1203,7 +1202,7 @@ enabled.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "fennel"
                (("/usr/bin/env .*lua")
-                (string-append (assoc-ref inputs "lua") "/bin/lua")))
+                (search-input-file inputs "/bin/lua")))
              #t))
          (delete 'check)
          (add-after 'install 'check
diff --git a/gnu/packages/lxde.scm b/gnu/packages/lxde.scm
index f81d7af3c4..7f483cfe1f 100644
--- a/gnu/packages/lxde.scm
+++ b/gnu/packages/lxde.scm
@@ -6,7 +6,7 @@
 ;;; Copyright © 2017 Brendan Tildesley <mail@brendan.scot>
 ;;; Copyright © 2018–2021 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 ison <ison@airmail.cc>
-;;; Copyright © 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2018, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2019 Meiyo Peng <meiyo@riseup.net>
 ;;;
@@ -370,8 +370,7 @@ with freedesktop.org standard.")
                #t)))
          (add-after 'patch-share-dirs 'patch-mime-dirs
            (lambda* (#:key inputs #:allow-other-keys)
-             (let* ((mime (string-append (assoc-ref inputs "shared-mime-info")
-                                         "/share/mime")))
+             (let* ((mime (search-input-directory inputs "/share/mime")))
                (with-directory-excursion "src"
                  (substitute* '("mime-type/mime-type.c" "ptk/ptk-file-menu.c")
                    (("/usr(/local)?/share/mime") mime)))
@@ -398,9 +397,7 @@ with freedesktop.org standard.")
                 "terminal_su=/run/setuid-programs/su")
                (("#graphical_su=/usr/bin/gksu")
                 (string-append "graphical_su="
-                               (string-append (assoc-ref inputs "ktsuss")
-                                              "/bin/ktsuss"))))
-             #t)))
+                               (search-input-file inputs "/bin/ktsuss")))))))
        #:configure-flags (list
                           (string-append "--with-preferable-sudo="
                                          (assoc-ref %build-inputs "ktsuss")
diff --git a/gnu/packages/machine-learning.scm b/gnu/packages/machine-learning.scm
index 952872e468..4dfeddedb0 100644
--- a/gnu/packages/machine-learning.scm
+++ b/gnu/packages/machine-learning.scm
@@ -16,7 +16,7 @@
 ;;; Copyright © 2020 Konrad Hinsen <konrad.hinsen@fastmail.net>
 ;;; Copyright © 2020 Edouard Klein <edk@beaver-labs.com>
 ;;; Copyright © 2020, 2021 Vinicius Monego <monego@posteo.net>
-;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -217,20 +217,7 @@ classification.")
          #:phases
          (modify-phases %standard-phases
            (add-after 'unpack 'enter-dir
-             (lambda _ (chdir "ghmm") #t))
-           (delete 'check)
-           (add-after 'install 'check
-             (assoc-ref %standard-phases 'check))
-           (add-before 'check 'fix-PYTHONPATH
-             (lambda* (#:key inputs outputs #:allow-other-keys)
-               (let ((python-version (python-version
-                                      (assoc-ref inputs "python"))))
-                 (setenv "PYTHONPATH"
-                         (string-append (getenv "PYTHONPATH")
-                                        ":" (assoc-ref outputs "out")
-                                        "/lib/python" python-version
-                                        "/site-packages")))
-               #t))
+             (lambda _ (chdir "ghmm")))
            (add-after 'enter-dir 'fix-runpath
              (lambda* (#:key outputs #:allow-other-keys)
                (substitute* "ghmmwrapper/setup.py"
@@ -241,8 +228,7 @@ classification.")
                                  line
                                  "\"-Wl,-rpath="
                                  (assoc-ref outputs "out")
-                                 "/lib\", ")))
-               #t))
+                                 "/lib\", ")))))
            (add-after 'enter-dir 'disable-broken-tests
              (lambda _
                (substitute* "tests/Makefile.am"
@@ -262,8 +248,7 @@ classification.")
                    line indent)
                   (string-append indent
                                  "@unittest.skip(\"Disabled by Guix\")\n"
-                                 line)))
-               #t)))))
+                                 line))))))))
       (inputs
        `(("python" ,python-2) ; only Python 2 is supported
          ("libxml2" ,libxml2)))
@@ -1504,7 +1489,7 @@ automatically.")
                  (let* ((server (string-append bin "/kaldi-gst-server"))
                         (client (string-append bin "/kaldi-gst-client"))
                         (worker (string-append bin "/kaldi-gst-worker"))
-                        (PYTHONPATH (getenv "PYTHONPATH"))
+                        (PYTHONPATH (getenv "GUIX_PYTHONPATH"))
                         (GST_PLUGIN_PATH (string-append
                                           (assoc-ref inputs "gst-kaldi-nnet2-online")
                                           "/lib/gstreamer-1.0:${GST_PLUGIN_PATH}"))
@@ -1513,7 +1498,7 @@ automatically.")
                                   (lambda _
                                     (format #t
                                             "#!~a
-export PYTHONPATH=~a
+export GUIX_PYTHONPATH=~a
 export GST_PLUGIN_PATH=~a
 exec ~a ~a/~a \"$@\"~%"
                                             (which "bash") PYTHONPATH GST_PLUGIN_PATH
@@ -1637,10 +1622,9 @@ Python.")
              ;; https://github.com/tensorflow/tensorflow/issues/34197
              (substitute* (find-files "tensorflow/python" ".*\\.cc$")
                (("(nullptr,)(\\ +/. tp_print)" _ _ tp_print)
-                (string-append "NULL,   " tp_print)))
-             #t))
+                (string-append "NULL,   " tp_print)))))
          (add-after 'python3.7-compatibility 'chdir
-           (lambda _ (chdir "tensorflow/contrib/cmake") #t))
+           (lambda _ (chdir "tensorflow/contrib/cmake")))
          (add-after 'chdir 'disable-downloads
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* (find-files "external" "\\.cmake$")
@@ -1655,36 +1639,31 @@ Python.")
                  ;; Sqlite
                  (("include\\(sqlite\\)") "")
                  (("\\$\\{sqlite_STATIC_LIBRARIES\\}")
-                  (string-append (assoc-ref inputs "sqlite")
-                                 "/lib/libsqlite3.so"))
+                  (search-input-file inputs "/lib/libsqlite3.so"))
                  (("sqlite_copy_headers_to_destination") "")
 
                  ;; PNG
                  (("include\\(png\\)") "")
                  (("\\$\\{png_STATIC_LIBRARIES\\}")
-                  (string-append (assoc-ref inputs "libpng")
-                                 "/lib/libpng16.so"))
+                  (search-input-file inputs "/lib/libpng16.so"))
                  (("png_copy_headers_to_destination") "")
 
                  ;; JPEG
                  (("include\\(jpeg\\)") "")
                  (("\\$\\{jpeg_STATIC_LIBRARIES\\}")
-                  (string-append (assoc-ref inputs "libjpeg")
-                                 "/lib/libjpeg.so"))
+                  (search-input-file inputs "/lib/libjpeg.so"))
                  (("jpeg_copy_headers_to_destination") "")
 
                  ;; GIF
                  (("include\\(gif\\)") "")
                  (("\\$\\{gif_STATIC_LIBRARIES\\}")
-                  (string-append (assoc-ref inputs "giflib")
-                                 "/lib/libgif.so"))
+                  (search-input-file inputs "/lib/libgif.so"))
                  (("gif_copy_headers_to_destination") "")
 
                  ;; lmdb
                  (("include\\(lmdb\\)") "")
                  (("\\$\\{lmdb_STATIC_LIBRARIES\\}")
-                  (string-append (assoc-ref inputs "lmdb")
-                                 "/lib/liblmdb.so"))
+                  (search-input-file inputs "/lib/liblmdb.so"))
                  (("lmdb_copy_headers_to_destination") "")
 
                  ;; Protobuf
@@ -1777,8 +1756,7 @@ set(eigen_INCLUDE_DIRS ${CMAKE_CURRENT_BINARY_DIR}/external/eigen_archive "
                     "re2"))
 
              (rename-file "../build/cub/src/cub/cub-1.8.0/"
-                          "../build/cub/src/cub/cub/")
-             #t))
+                          "../build/cub/src/cub/cub/")))
          (add-after 'unpack 'fix-python-build
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (mkdir-p "protobuf-src")
@@ -1789,9 +1767,6 @@ set(eigen_INCLUDE_DIRS ${CMAKE_CURRENT_BINARY_DIR}/external/eigen_archive "
                      "-C" "eigen-src" "--strip-components=1")
 
              (substitute* "tensorflow/contrib/cmake/tf_python.cmake"
-               ;; Ensure that all Python dependencies can be found at build time.
-               (("PYTHONPATH=\\$\\{CMAKE_CURRENT_BINARY_DIR\\}/tf_python" m)
-                (string-append m ":" (getenv "PYTHONPATH")))
                ;; Take protobuf source files from our source package.
                (("\\$\\{CMAKE_CURRENT_BINARY_DIR\\}/protobuf/src/protobuf/src/google")
                 (string-append (getcwd) "/protobuf-src/src/google")))
@@ -1803,7 +1778,7 @@ set(eigen_INCLUDE_DIRS ${CMAKE_CURRENT_BINARY_DIR}/external/eigen_archive "
                 (string-append (getcwd) "/eigen-src/"))
                ;; Take Eigen headers from our own package.
                (("\\$\\{CMAKE_CURRENT_BINARY_DIR\\}/external/eigen_archive")
-                (string-append (assoc-ref inputs "eigen") "/include/eigen3")))
+                (search-input-directory inputs "/include/eigen3")))
 
              ;; Correct the RUNPATH of ops libraries generated for Python.
              ;; TODO: this doesn't work :(
@@ -1817,15 +1792,13 @@ set(eigen_INCLUDE_DIRS ${CMAKE_CURRENT_BINARY_DIR}/external/eigen_archive "
                 (string-append "set_target_properties(${_AT_TARGET} PROPERTIES \
 COMPILE_FLAGS ${target_compile_flags} \
 INSTALL_RPATH_USE_LINK_PATH TRUE \
-INSTALL_RPATH " (assoc-ref outputs "out") "/lib)\n")))
-             #t))
+INSTALL_RPATH " (assoc-ref outputs "out") "/lib)\n")))))
          (add-after 'build 'build-pip-package
            (lambda* (#:key outputs #:allow-other-keys)
              (setenv "LDFLAGS"
                      (string-append "-Wl,-rpath="
                                     (assoc-ref outputs "out") "/lib"))
-             (invoke "make" "tf_python_build_pip_package")
-             #t))
+             (invoke "make" "tf_python_build_pip_package")))
          (add-after 'build-pip-package 'install-python
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out"))
@@ -1840,8 +1813,7 @@ INSTALL_RPATH " (assoc-ref outputs "out") "/lib)\n")))
                 (string-append
                  out "/lib/python" python-version
                  "/site-packages/tensorflow/contrib/"
-                 "seq2seq/python/ops/lib_beam_search_ops.so"))
-               #t))))))
+                 "seq2seq/python/ops/lib_beam_search_ops.so"))))))))
     (native-inputs
      `(("pkg-config" ,pkg-config)
        ("protobuf:native" ,protobuf-3.6) ; protoc
diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index c207d363cf..dc33812356 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014, 2015, 2017, 2020 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014 Ian Denhardt <ian@zenhack.net>
 ;;; Copyright © 2014 Sou Bunnbu <iyzsong@gmail.com>
@@ -40,6 +40,7 @@
 ;;; Copyright © 2020 Oleg Pykhalov <go.wigust@gmail.com>
 ;;; Copyright © 2020 B. Wilson <elaexuotee@wilsonb.com>
 ;;; Copyright © 2020 divoplade <d@divoplade.fr>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
 ;;; Copyright © 2021 Benoit Joly <benoit@benoitj.ca>
 ;;;
@@ -1208,9 +1209,7 @@ security functionality including PGP, S/MIME, SSH, and SSL.")
            (lambda* (#:key inputs #:allow-other-keys)
              ;; For mu/test/test-mu-query.c
              (setenv "TZDIR"
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo"))
-             #t))
+                     (search-input-directory inputs "share/zoneinfo"))))
          (add-after 'install 'install-emacs-autoloads
            (lambda* (#:key outputs #:allow-other-keys)
              (emacs-generate-autoloads
@@ -1317,7 +1316,7 @@ Notmuch.")
                (let* ((out (assoc-ref outputs "out"))
                       (bin (string-append out "/bin/notifymuch")))
                  (wrap-program bin
-                   `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH")))
+                   `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH")))
                    `("GI_TYPELIB_PATH" ":" prefix
                      (,(getenv "GI_TYPELIB_PATH")
                       ,(string-append out "/lib/girepository-1.0")))))
@@ -1643,8 +1642,8 @@ compresses it.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "src/procmime.c"
                (("/usr/share/mime/globs")
-                (string-append (assoc-ref inputs "shared-mime-info")
-                               "/share/mime/globs"))))))))
+                (search-input-directory inputs
+                                        "/share/mime/globs"))))))))
     (native-inputs
      `(("bison" ,bison)
        ;;("docbook-utils" ,docbook-utils)
@@ -2966,6 +2965,7 @@ transfer protocols.")
              (let ((out (assoc-ref outputs "out"))
                    (path (getenv "PERL5LIB")))
                (wrap-script (string-append out "/bin/sieve-connect")
+                 #:guile (search-input-file inputs "bin/guile")
                  `("PERL5LIB" ":" = (,path)))
                #t))))))
     (inputs
@@ -3500,7 +3500,6 @@ which sends emails to HyperKitty, the official Mailman3 web archiver.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH" (string-append ".:" (getenv "PYTHONPATH")))
              (invoke "example_project/manage.py" "test"
                      "--settings=hyperkitty.tests.settings_test"))))))
     (propagated-inputs
@@ -4134,7 +4133,7 @@ Git and exports them in maildir format or to an MDA through a pipe.")
                     ;; 'git' is invoked in various files of the PublicInbox
                     ;; perl module.
                     `("PATH" ":" prefix
-                      (,(string-append (assoc-ref inputs "git") "/bin")))))
+                      (,(dirname (search-input-file inputs "/bin/git"))))))
                 (find-files (string-append out "/bin"))))
              #t)))))
     (native-inputs
diff --git a/gnu/packages/make-bootstrap.scm b/gnu/packages/make-bootstrap.scm
index cdcb1dcaa2..12e59e9f83 100644
--- a/gnu/packages/make-bootstrap.scm
+++ b/gnu/packages/make-bootstrap.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018, 2019 Mark H Weaver <mhw@netris.org>
@@ -23,6 +23,7 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (gnu packages make-bootstrap)
+  #:use-module (guix gexp)
   #:use-module (guix utils)
   #:use-module (guix packages)
   #:use-module (guix memoization)
@@ -374,10 +375,6 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
                                              (package-arguments binutils))
                                   ((#:configure-flags flags _ ...)
                                    flags)))
-       #:make-flags ,(match (memq #:make-flags (package-arguments binutils))
-                       ((#:make-flags flags _ ...)
-                        flags)
-                       (_ ''()))
        #:strip-flags '("--strip-all")
        #:phases (modify-phases %standard-phases
                   (add-before 'configure 'all-static
@@ -441,7 +438,7 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
                                (assoc-ref %build-inputs "kernel-headers")))))
       (inputs `(("kernel-headers"
                  ,(if (or (and (%current-target-system)
-                               (hurd-triplet? (%current-target-system)))
+                               (target-hurd? (%current-target-system)))
                           (string-suffix? "-hurd" (%current-system)))
                       gnumach-headers
                       linux-libre-headers))
@@ -588,11 +585,11 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
 (define %mescc-tools-static
   ;; A statically linked MesCC Tools.
   (package
-    (inherit mescc-tools-0.5.2)
+    (inherit mescc-tools)
     (name "mescc-tools-static")
     (arguments
      `(#:system "i686-linux"
-       ,@(substitute-keyword-arguments (package-arguments mescc-tools-0.5.2)
+       ,@(substitute-keyword-arguments (package-arguments mescc-tools)
            ((#:make-flags flags)
             `(cons "CC=gcc -static" ,flags)))))))
 
@@ -626,31 +623,29 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
 ;; Two packages: first build static, bare minimum content.
 (define-public %mes-minimal
   ;; A minimal Mes without documentation.
-  (let ((triplet "i686-unknown-linux-gnu"))
-    (package
-      (inherit mes-0.19)
-      (name "mes-minimal")
-      (native-inputs
-       `(("guile" ,guile-2.2)))
-      (arguments
-       `(#:system "i686-linux"
-         #:strip-binaries? #f
-         #:configure-flags '("--mes")
-         #:phases
-         (modify-phases %standard-phases
-           (delete 'patch-shebangs)
-           (add-after 'install 'strip-install
-             (lambda _
-               (let* ((out (assoc-ref %outputs "out"))
-                      (share (string-append out "/share")))
-                 (delete-file-recursively (string-append out "/lib/guile"))
-                 (delete-file-recursively (string-append share "/guile"))
-                 (delete-file-recursively (string-append share "/mes/scaffold"))
-
-                 (for-each delete-file
-                           (find-files
-                            (string-append share "/mes/lib")
-                            "\\.(h|c)")))))))))))
+  (package
+    (inherit mes)
+    (name "mes-minimal")
+    (native-inputs
+     `(("guile" ,guile-3.0)))
+    (arguments
+     `(#:system "i686-linux"
+       #:strip-binaries? #f
+       #:configure-flags '("--mes")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'patch-shebangs)
+         (add-after 'install 'strip-install
+           (lambda _
+             (let* ((out (assoc-ref %outputs "out"))
+                    (share (string-append out "/share")))
+               (delete-file-recursively (string-append out "/lib/guile"))
+               (delete-file-recursively (string-append share "/guile"))
+
+               (for-each delete-file
+                         (find-files
+                          (string-append share "/mes/lib")
+                          "\\.(h|c)"))))))))))
 
 ;; next remove store references.
 (define %mes-minimal-stripped
@@ -661,6 +656,7 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
+       #:allowed-references ()
        #:builder
        (begin
          (use-modules (guix build utils))
@@ -705,12 +701,8 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
           ;; When `configure' checks for ltdl availability, it
           ;; doesn't try to link using libtool, and thus fails
           ;; because of a missing -ldl.  Work around that.
-
-          ;; XXX: On ARMv7, disable JIT: it causes crashes with 3.0.2,
-          ;; possibly related to <https://bugs.gnu.org/40737>.
-          (if (target-arm32?)
-              ''("LDFLAGS=-ldl" "--disable-jit")
-              ''("LDFLAGS=-ldl")))
+          ''("LDFLAGS=-ldl"
+             "--enable-mini-gmp"))
          ((#:phases phases '%standard-phases)
           `(modify-phases ,phases
 
@@ -882,25 +874,26 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
     (source #f)
     (build-system trivial-build-system)
     (arguments
-     `(#:modules ((guix build utils))
-       #:builder
-       (let ((out (assoc-ref %outputs "out")))
-         (use-modules (guix build utils)
-                      (ice-9 match)
-                      (srfi srfi-26))
-
-         (setvbuf (current-output-port)
-                  (cond-expand (guile-2.0 _IOLBF) (else 'line)))
-         (mkdir out)
-         (chdir out)
-         (for-each (match-lambda
-                    ((name . directory)
-                     (for-each (lambda (file)
-                                 (format #t "~a -> ~a~%" file out)
-                                 (symlink file (basename file)))
-                               (find-files directory "\\.tar\\."))))
-                   %build-inputs)
-         #t)))
+     (list #:modules '((guix build utils))
+           #:builder
+           #~(begin
+               (use-modules (guix build utils)
+                            (ice-9 match)
+                            (srfi srfi-26))
+
+               (define out #$output)
+
+               (setvbuf (current-output-port)
+                        (cond-expand (guile-2.0 _IOLBF) (else 'line)))
+               (mkdir out)
+               (chdir out)
+               (for-each (match-lambda
+                           ((name . directory)
+                            (for-each (lambda (file)
+                                        (format #t "~a -> ~a~%" file out)
+                                        (symlink file (basename file)))
+                                      (find-files directory "\\.tar\\."))))
+                         %build-inputs))))
     (inputs `(("guile-tarball" ,%guile-bootstrap-tarball)
               ,@(match (or (%current-target-system) (%current-system))
                   ((or "i686-linux" "x86_64-linux")
diff --git a/gnu/packages/man.scm b/gnu/packages/man.scm
index caaa6da5ed..b1ecb9dd2a 100644
--- a/gnu/packages/man.scm
+++ b/gnu/packages/man.scm
@@ -36,6 +36,7 @@
   #:use-module (gnu packages dbm)
   #:use-module (gnu packages flex)
   #:use-module (gnu packages gawk)
+  #:use-module (gnu packages gettext)
   #:use-module (gnu packages groff)
   #:use-module (gnu packages less)
   #:use-module (gnu packages perl)
@@ -303,9 +304,11 @@ Linux kernel and C library interfaces employed by user-space programs.")
     (license license:gpl2+)))
 
 (define-public help2man
+  ;; TODO: Manual pages for languages not available from the implicit
+  ;; input "locales" contain the original (English) text.
   (package
     (name "help2man")
-    (version "1.47.13")
+    (version "1.48.3")
     (source
      (origin
       (method url-fetch)
@@ -313,18 +316,26 @@ Linux kernel and C library interfaces employed by user-space programs.")
                           version ".tar.xz"))
       (sha256
        (base32
-        "08q5arxz4j4pyx5q4712c2rn7p7dw7as9xg38yvmsh1c3ynvpy5p"))))
+        "1b58s40dh2lflrkgbyxg1s48p8icb5a5yzp9ch83kg9zchygyqc3"))))
     (build-system gnu-build-system)
     (arguments `(;; There's no `check' target.
-                 #:tests? #f))
+                 #:tests? #f
+                 #:phases
+                 (modify-phases %standard-phases
+                   (add-after 'unpack 'patch-help2man-with-perl-gettext
+                     (lambda* (#:key inputs #:allow-other-keys)
+                       (let ((lib (assoc-ref inputs "perl-gettext"))
+                             (fmt "use lib '~a/lib/perl5/site_perl';~%~a"))
+                         (substitute* "help2man.PL"
+                           (("^use Locale::gettext.*$" load)
+                            (format #f fmt lib load))))
+                       #t)))))
     (inputs
      `(("perl" ,perl)
-       ;; TODO: Add these optional dependencies.
-       ;; ("perl-LocaleGettext" ,perl-LocaleGettext)
-       ;; ("gettext" ,gettext-minimal)
-       ))
+       ("perl-gettext" ,perl-gettext)))
     (native-inputs
-     `(("perl" ,perl)))
+     `(("perl" ,perl)
+       ("gettext" ,gettext-minimal)))
     (home-page "https://www.gnu.org/software/help2man/")
     (synopsis "Automatically generate man pages from program --help")
     (description
diff --git a/gnu/packages/mastodon.scm b/gnu/packages/mastodon.scm
index 17673c7fde..31589909bf 100644
--- a/gnu/packages/mastodon.scm
+++ b/gnu/packages/mastodon.scm
@@ -127,7 +127,7 @@ Features include:
        ("libgee" ,libgee)
        ("libhandy" ,libhandy)
        ("libsoup" ,libsoup)
-       ("vala" ,vala-0.50)
+       ("vala" ,vala)
        ("xdg-utils" ,xdg-utils)))
     (home-page "https://github.com/bleakgrey/tootle")
     (synopsis "GTK3 client for Mastodon")
diff --git a/gnu/packages/mate.scm b/gnu/packages/mate.scm
index 82b2d6e0fd..fae85222b1 100644
--- a/gnu/packages/mate.scm
+++ b/gnu/packages/mate.scm
@@ -277,9 +277,7 @@ desktop and the mate-about program.")
           (lambda* (#:key inputs #:allow-other-keys)
             (substitute* "data/check-timezones.sh"
               (("/usr/share/zoneinfo/zone.tab")
-               (string-append (assoc-ref inputs "tzdata")
-                              "/share/zoneinfo/zone.tab")))
-            #t)))))
+               (search-input-file inputs "/share/zoneinfo/zone.tab"))))))))
     (native-inputs
      `(("pkg-config" ,pkg-config)
        ("intltool" ,intltool)
@@ -710,7 +708,7 @@ infamous 'Wanda the Fish'.")
 (define-public atril
   (package
     (name "atril")
-    (version "1.22.0")
+    (version "1.24.0")
     (source
      (origin
        (method url-fetch)
@@ -718,7 +716,7 @@ infamous 'Wanda the Fish'.")
                            name "-" version ".tar.xz"))
        (sha256
         (base32
-         "1xd49j4qwrlg2nh2zvspf91yk033dp8a58dy9azqg2yz4bcvywxb"))))
+         "0967gxw7h2qh2kpwl0jgv58hicz6aa92kr12mnykbpikad25s95y"))))
     (build-system glib-or-gtk-build-system)
     (arguments
      `(#:configure-flags (list (string-append "--with-openjpeg="
@@ -762,6 +760,7 @@ infamous 'Wanda the Fish'.")
        ("glib:bin" ,glib "bin")
        ("gobject-introspection" ,gobject-introspection)
        ("gtk-doc" ,gtk-doc)
+       ("texlive-bin" ,texlive-bin) ;synctex
        ("xmllint" ,libxml2)
        ("zlib" ,zlib)))
     (inputs
diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index d4e3aca21e..90996a1f6d 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -26,7 +26,7 @@
 ;;; Copyright © 2018 Joshua Sierles, Nextjournal <joshua@nextjournal.com>
 ;;; Copyright © 2018 Nadya Voronova <voronovank@gmail.com>
 ;;; Copyright © 2018 Adam Massmann <massmannak@gmail.com>
-;;; Copyright © 2018, 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2018, 2020, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2018 Eric Brown <brown@fastmail.com>
 ;;; Copyright © 2018, 2021 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2018 Amin Bandali <bandali@gnu.org>
@@ -141,6 +141,7 @@
   #:use-module (gnu packages tbb)
   #:use-module (gnu packages scheme)
   #:use-module (gnu packages shells)
+  #:use-module (gnu packages sphinx)
   #:use-module (gnu packages tcl)
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages tex)
@@ -340,8 +341,8 @@ programming language.")
                      (let* ((out (assoc-ref outputs "out"))
                             (bin (string-append out "/bin")))
                        (wrap-program (string-append bin "/units_cur")
-                         `("PYTHONPATH" ":" prefix
-                           ,(search-path-as-string->list (getenv "PYTHONPATH"))))
+                         `("GUIX_PYTHONPATH" ":" prefix
+                           ,(search-path-as-string->list (getenv "GUIX_PYTHONPATH"))))
                        #t))))))
    (synopsis "Conversion between thousands of scales")
    (description
@@ -479,46 +480,47 @@ precision floating point numbers.")
 (define-public gsl
   (package
     (name "gsl")
-    (version "2.6")
+    (version "2.7")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnu/gsl/gsl-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "1a460zj9xmbgvcymkdhqh313c4l29mn9cffbi5vf33x3qygk70mp"))))
+                "0av04cpblphvvs3kl5rwphniarml503501vrpqw31rd0bmwg7fzg"))))
     (build-system gnu-build-system)
     (arguments
      (let ((system (%current-system)))
-       (cond
-        ((or (string-prefix? "aarch64" system)
-             (string-prefix? "powerpc" system))
-         ;; Some sparse matrix tests are failing on AArch64 and PowerPC:
-         ;; https://lists.gnu.org/archive/html/bug-gsl/2020-04/msg00001.html
-         '(#:phases (modify-phases %standard-phases
-                      (add-before 'check 'disable-failing-tests
-                        (lambda _
-                          (substitute* "spmatrix/test.c"
-                            ((".*test_complex.*") "\n"))
-                          #t)))))
-        ((string-prefix? "i686" system)
-         ;; There are rounding issues with these tests on i686:
-         ;; https://lists.gnu.org/archive/html/bug-gsl/2016-10/msg00000.html
-         ;; https://lists.gnu.org/archive/html/bug-gsl/2020-04/msg00000.html
-         '(#:phases (modify-phases %standard-phases
-                      (add-before 'check 'disable-failing-tests
-                        (lambda _
-                          (substitute* "linalg/test.c"
-                            ((".*gsl_test\\(test_LU_decomp.*") "\n")
-                            ((".*gsl_test\\(test_LUc_decomp.*") "\n")
-                            ((".*gsl_test\\(test_cholesky_decomp.*") "\n")
-                            ((".*gsl_test\\(test_COD_lssolve2.*") "\n"))
-                          (substitute* "spmatrix/test.c"
-                            ((".*test_all.*") "\n")
-                            ((".*test_float.*") "\n")
-                            ((".*test_complex.*") "\n"))
-                          #t)))))
-        (else '()))))
+       `(#:configure-flags (list "--disable-static") ;halves package size
+         #:phases
+         (modify-phases %standard-phases
+           ,@(cond
+              ((or (string-prefix? "aarch64" system)
+                   (string-prefix? "powerpc" system))
+               ;; Some sparse matrix tests are failing on AArch64 and PowerPC:
+               ;; https://lists.gnu.org/archive/html/bug-gsl/2020-04/msg00001.html
+               '((add-before 'check 'disable-failing-tests
+                   (lambda _
+                     (substitute* "spmatrix/test.c"
+                       ((".*test_complex.*") "\n"))))))
+
+              ((string-prefix? "i686" system)
+               ;; There are rounding issues with these tests on i686:
+               ;; https://lists.gnu.org/archive/html/bug-gsl/2016-10/msg00000.html
+               ;; https://lists.gnu.org/archive/html/bug-gsl/2020-04/msg00000.html
+               '((add-before 'check 'disable-failing-tests
+                   (lambda _
+                     (substitute* "linalg/test.c"
+                       ((".*gsl_test\\(test_LU_decomp.*") "\n")
+                       ((".*gsl_test\\(test_LUc_decomp.*") "\n")
+                       ((".*gsl_test\\(test_cholesky_decomp.*") "\n")
+                       ((".*gsl_test\\(test_COD_lssolve2.*") "\n"))
+                     (substitute* "spmatrix/test.c"
+                       ((".*test_all.*") "\n")
+                       ((".*test_float.*") "\n")
+                       ((".*test_complex.*") "\n"))))))
+
+              (else '()))))))
     (home-page "https://www.gnu.org/software/gsl/")
     (synopsis "Numerical library for C and C++")
     (description
@@ -1346,16 +1348,17 @@ extremely large and complex data collections.")
                             "hdf/hdf5lib/exceptions/Makefile.in"
                             "hdf/hdflib/Makefile.in")
                (("\\$\\(TOP\\)/lib/slf4j-api-1\\.7\\.5\\.jar")
-                (string-append (assoc-ref inputs "slf4j-api")
-                               "/share/java/slf4j-api.jar")))
+                (search-input-file inputs "/share/java/slf4j-api.jar")))
              ;; Replace outdated config.sub and config.guess:
              (with-directory-excursion "config"
                (for-each (lambda (file)
                            (install-file
-                            (string-append (assoc-ref inputs "automake")
-                                           "/share/automake-"
-                                           ,(version-major+minor (package-version automake))
-                                           "/" file) "."))
+                            (search-input-file inputs
+                                               (string-append
+                                                "/share/automake-"
+                                                ,(version-major+minor (package-version automake))
+                                                "/" file))
+                            "."))
                          '("config.sub" "config.guess")))
 
              ;; Fix embedded version number
@@ -1387,11 +1390,9 @@ extremely large and complex data collections.")
                               "test/hdf5lib/junit.sh.in"
                               "examples/runExample.sh.in")
                  (("/usr/bin/test")
-                  (string-append (assoc-ref inputs "coreutils")
-                                 "/bin/test"))
+                  (search-input-file inputs "/bin/test"))
                  (("/usr/bin/uname")
-                  (string-append (assoc-ref inputs "coreutils")
-                                 "/bin/uname"))
+                  (search-input-file inputs "/bin/uname"))
                  (("CLASSPATH=[^\n]*")
                   (string-append "CLASSPATH=" class-path)))
                (setenv "CLASSPATH" class-path))
@@ -2240,7 +2241,7 @@ script files.")
        ,@(package-inputs octave-cli)))
     (native-inputs
      `(("qttools" , qttools) ;for lrelease
-       ("texlive" ,(texlive-union (list texlive-epsf))) ; for texi2dvi
+       ("texlive" ,(texlive-updmap.cfg (list texlive-epsf))) ; for texi2dvi
        ,@(package-native-inputs octave-cli)))
     (arguments
      (substitute-keyword-arguments (package-arguments octave-cli)
@@ -3776,13 +3777,12 @@ to BMP, JPEG or PNG image formats.")
        (modify-phases %standard-phases
          (add-after 'unpack 'patch-paths
            (lambda* (#:key inputs #:allow-other-keys)
-             (let* ((sed (string-append (assoc-ref inputs "sed") "/bin/sed"))
+             (let* ((sed (search-input-file inputs "/bin/sed"))
                     (coreutils (assoc-ref inputs "coreutils"))
                     (dirname (string-append coreutils "/bin/dirname"))
                     (head (string-append coreutils "/bin/head"))
-                    (perl (string-append (assoc-ref inputs "perl") "/bin/perl"))
-                    (python (string-append (assoc-ref inputs "python")
-                                           "/bin/python3")))
+                    (perl (search-input-file inputs "/bin/perl"))
+                    (python (search-input-file inputs "/bin/python3")))
                (substitute* "src/maxima.in"
                  (("sed ") (string-append sed " "))
                  (("dirname") dirname)
@@ -3816,8 +3816,7 @@ to BMP, JPEG or PNG image formats.")
              (let* ((gnuplot (assoc-ref inputs "gnuplot"))
                     (out (assoc-ref outputs "out"))
                     (datadir (string-append out "/share/maxima/" ,version))
-                    (binutils (string-append (assoc-ref inputs "binutils")
-                                             "/bin")))
+                    (binutils (dirname (search-input-file inputs "/bin/as"))))
                (with-directory-excursion out
                  (mkdir-p "share/emacs")
                  (mkdir-p "share/doc")
@@ -3983,16 +3982,17 @@ parts of it.")
 (define-public openblas
   (package
     (name "openblas")
-    (version "0.3.9")
+    (version "0.3.13")
     (source
      (origin
-       (method url-fetch)
-       (uri (string-append "mirror://sourceforge/openblas/v" version "/OpenBLAS%20"
-                           version "%20version.tar.gz"))
-       (file-name (string-append name "-" version ".tar.gz"))
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/xianyi/OpenBLAS")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
        (sha256
         (base32
-         "14iz9xnrb9xiwgj84j94mc74gg0zn2vsy9fmsijxxma1n7dck4w3"))))
+         "14jxh0v3jfbw4mfjx4mcz4dd51lyq7pqvh9k8dg94539ypzjr2lj"))))
     (build-system gnu-build-system)
     (arguments
      `(#:test-target "test"
@@ -4027,7 +4027,8 @@ parts of it.")
                        (string-prefix? "i686" system))
                    '("DYNAMIC_ARCH=1"))
                   ;; On some of these architectures the CPU can't be detected.
-                  ((string-prefix? "powerpc64le" system)
+                  ((or (string-prefix? "powerpc64le" system)
+                       (string-prefix? "aarch64" system))
                    '("DYNAMIC_ARCH=1"
                      "TARGET=GENERIC"))
                   ;; On MIPS we force the "SICORTEX" TARGET, as for the other
@@ -4035,9 +4036,6 @@ parts of it.")
                   ;; for Loongson cores are used.
                   ((string-prefix? "mips" system)
                    '("TARGET=SICORTEX"))
-                  ;; On aarch64 force the generic 'armv8-a' target
-                  ((string-prefix? "aarch64" system)
-                   '("TARGET=ARMV8"))
                   ;; Failed to detect CPU.
                   ((string-prefix? "armhf" system)
                    '("TARGET=ARMV7"))
@@ -4342,6 +4340,7 @@ packages.")
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/math-atlas/Stable/"
                                   version "/atlas" version ".tar.bz2"))
+              (patches (search-patches "atlas-gfortran-compat.patch"))
               (sha256
                (base32
                 "1dyjlq3fiparvm8ypwk6rsmjzmnwk81l88gkishphpvc79ryp216"))))
@@ -4868,7 +4867,7 @@ set.")
 (define-public hypre
   (package
     (name "hypre")
-    (version "2.15.1")
+    (version "2.20.0")
     (source
      (origin
        (method git-fetch)
@@ -4877,28 +4876,55 @@ set.")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "1lvh4ybqkriyqfg2zmic6mrg1981qv1i9vry1fdgsabn81hb71g4"))
-       (modules '((guix build utils)))
-       (snippet
-        '(begin
-           ;; Remove use of __DATE__ and __TIME__ for reproducibility;
-           ;; substitute the release date.
-           (substitute* "src/utilities/HYPRE_utilities.h"
-             (("Date Compiled: .*$")
-              "Date Compiled: Oct 19 2018 15:23:00 +0000\"\n"))
-           #t))))
+        (base32 "14iqjwg5sv1qjn7c2cfv0xxmn9rwamjrhh9hgs8fjbywcbvrkjdi"))))
     (build-system gnu-build-system)
-    (outputs '("out"                    ; 6.1 MiB of headers and libraries
-               "doc"))                  ; 4.8 MiB of documentation
+    (outputs '("out"                    ;5.3 MiB of headers and libraries
+               "doc"))                  ;12 MiB of documentation
     (native-inputs
      `(("doc++" ,doc++)
-       ("netpbm" ,netpbm)
-       ("perl" ,perl)                   ; needed to run 'ppmquant' during tests
-       ("texlive" ,(texlive-union (list texlive-xypic
-                                        texlive-cm
-                                        texlive-latex-hyperref
-                                        texlive-bibtex)))
-       ("ghostscript" ,ghostscript)))
+       ("doxygen" ,doxygen)
+       ("python" ,python)
+       ("python-breathe" ,python-breathe)
+       ("python-sphinx" ,python-sphinx)
+       ("texlive" ,(texlive-updmap.cfg (list texlive-adjustbox
+                                             texlive-amsfonts
+                                             texlive-bibtex
+                                             texlive-caption
+                                             texlive-cm
+                                             texlive-etoolbox
+                                             texlive-jknappen
+                                             texlive-sectsty
+                                             texlive-tex-gyre
+                                             texlive-wasy
+                                             texlive-xcolor
+                                             texlive-xypic
+                                             texlive-generic-listofitems
+                                             texlive-generic-ulem
+                                             texlive-latex-capt-of
+                                             texlive-latex-cmap
+                                             texlive-latex-colortbl
+                                             texlive-latex-etoc
+                                             texlive-latex-fancyhdr
+                                             texlive-latex-fancyvrb
+                                             texlive-latex-float
+                                             texlive-latex-fncychap
+                                             texlive-latex-framed
+                                             texlive-latex-geometry
+                                             texlive-latex-hanging
+                                             texlive-latex-hyperref
+                                             texlive-latex-multirow
+                                             texlive-latex-natbib
+                                             texlive-latex-needspace
+                                             texlive-latex-newunicodechar
+                                             texlive-latex-parskip
+                                             texlive-latex-stackengine
+                                             texlive-latex-tabulary
+                                             texlive-latex-titlesec
+                                             texlive-latex-tocloft
+                                             texlive-latex-upquote
+                                             texlive-latex-varwidth
+                                             texlive-latex-wasysym
+                                             texlive-latex-wrapfig)))))
     (inputs
      `(("blas" ,openblas)
        ("lapack" ,lapack)))
@@ -4914,12 +4940,6 @@ set.")
                            "--with-blas")
        #:phases
        (modify-phases %standard-phases
-         (add-before 'build 'set-HOME
-           (lambda _
-             ;; FIXME: texlive-union does not find the built
-             ;; metafonts, so it tries to generate them in HOME.
-             (setenv "HOME" "/tmp")
-             #t))
          (add-before 'configure 'chdir-src
            (lambda _ (chdir "src")))
          (replace 'configure
@@ -4934,7 +4954,7 @@ set.")
                                           configure-flags)))))))
          (add-after 'build 'build-docs
            (lambda _
-             (invoke "make" "-Cdocs" "pdf" "html")))
+             (invoke "make" "-C" "docs")))
          (replace 'check
            (lambda _
              (setenv "LD_LIBRARY_PATH" (string-append (getcwd) "/hypre/lib"))
@@ -4945,8 +4965,7 @@ set.")
                            (when (positive? size)
                              (error (format #f "~a size ~d; error indication~%"
                                             filename size)))))
-                       (find-files "test" ".*\\.err$"))
-             #t))
+                       (find-files "test" ".*\\.err$"))))
          (add-after 'install 'install-docs
            (lambda* (#:key outputs #:allow-other-keys)
              ;; Custom install because docs/Makefile doesn't honor ${docdir}.
@@ -4955,10 +4974,9 @@ set.")
                (with-directory-excursion "docs"
                  (for-each (lambda (base)
                              (install-file (string-append base ".pdf") docdir)
-                             (copy-recursively base docdir)) ; html docs
-                           '("HYPRE_usr_manual"
-                             "HYPRE_ref_manual")))
-               #t))))))
+                             (copy-recursively (string-append base "-html")
+                                               (string-append docdir "/" base)))
+                           '("usr-manual" "ref-manual")))))))))
     (home-page "https://computing.llnl.gov/projects\
 /hypre-scalable-linear-solvers-multigrid-methods")
     (synopsis "Library of solvers and preconditioners for linear equations")
@@ -6593,9 +6611,8 @@ of C, Java, or Ada programs.")
        (modify-phases %standard-phases
          (add-before 'configure 'export-shell
            (lambda* (#:key inputs #:allow-other-keys)
-             (setenv "CONFIG_SHELL" (string-append (assoc-ref inputs "bash")
-                                                   "/bin/sh"))
-             #t)))))
+             (setenv "CONFIG_SHELL"
+                     (search-input-file inputs "/bin/sh")))))))
     (inputs
      `(("gmp" ,gmp)))
     (propagated-inputs
diff --git a/gnu/packages/mes.scm b/gnu/packages/mes.scm
index c66751bc7c..0251dbf02f 100644
--- a/gnu/packages/mes.scm
+++ b/gnu/packages/mes.scm
@@ -56,8 +56,7 @@
                (base32
                 "0lkd9lyspvhxlfs0496gsllwinh62jk9wij6gpadvx9gwz6yavd9"))))
     (build-system gnu-build-system)
-    (native-inputs
-     `(("guile" ,guile-2.2)))
+    (native-inputs (list guile-2.2))
     (synopsis "LALR(1) Parser Generator in Guile")
     (description
      "NYACC is an LALR(1) parser generator implemented in Guile.
@@ -92,10 +91,8 @@ extensive examples, including parsers for the Javascript and C99 languages.")
                     (("^DOCDIR =.*")
                      "DOCDIR = @prefix@/share/doc/$(PACKAGE_TARNAME)\n"))
                   #t))))
-    (native-inputs
-     `(("pkg-config" ,pkg-config)))
-    (inputs
-     `(("guile" ,guile-2.2)))))
+    (native-inputs (list pkg-config))
+    (inputs (list guile-2.2))))
 
 (define-public nyacc
   (package
@@ -116,8 +113,7 @@ extensive examples, including parsers for the Javascript and C99 languages.")
                      "GUILE_GLOBAL_SITE=\
 $prefix/share/guile/site/$GUILE_EFFECTIVE_VERSION\n"))
                   #t))))
-    (inputs
-     `(("guile" ,guile-3.0)))
+    (inputs (list guile-3.0))
     (description
      "@acronym{NYACC, Not Yet Another Compiler Compiler} is set of Guile modules
 for generating parsers and lexical analyzers.  It provides sample parsers,
@@ -152,69 +148,39 @@ parsers to allow execution with Guile as extension languages.")))
               (sha256
                (base32
                 "065ksalfllbdrzl12dz9d9dcxrv97wqxblslngsc6kajvnvlyvpk"))))
-    (inputs
-     `(("guile" ,guile-2.2)))))
+    (inputs (list guile-3.0))))
 
-(define-public mes-0.19
-  ;; Mes used for bootstrap.
+(define-public mes
   (package
     (name "mes")
-    (version "0.19")
+    (version "0.23")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnu/mes/"
                                   "mes-" version ".tar.gz"))
               (sha256
                (base32
-                "15h4yhaywdc0djpjlin2jz1kzahpqxfki0r0aav1qm9nxxmnp1l0"))))
-    (build-system gnu-build-system)
-    (supported-systems '("i686-linux" "x86_64-linux"))
-    (propagated-inputs
-     `(("mescc-tools" ,mescc-tools-0.5.2)
-       ("nyacc" ,nyacc-0.86)))
+                "0mnryfkl0dwbr5gxp16j5s95gw7z1vm1fqa1pxabp0aiar1hw53s"))))
+    (supported-systems '("armhf-linux" "i686-linux" "x86_64-linux"))
+    (propagated-inputs (list mescc-tools nyacc-1.00.2))
     (native-inputs
-     `(("guile" ,guile-2.2)
-       ,@(let ((target-system (or (%current-target-system)
+     (append (list guile-3.0)
+         (let ((target-system (or (%current-target-system)
                                   (%current-system))))
            (cond
             ((string-prefix? "x86_64-linux" target-system)
              ;; Use cross-compiler rather than #:system "i686-linux" to get
              ;; MesCC 64 bit .go files installed ready for use with Guile.
-             `(("i686-linux-binutils" ,(cross-binutils "i686-unknown-linux-gnu"))
-               ("i686-linux-gcc" ,(cross-gcc "i686-unknown-linux-gnu"))))
+             (list (cross-binutils "i686-unknown-linux-gnu")
+                   (cross-gcc "i686-unknown-linux-gnu")))
             (else
              '())))
-       ("graphviz" ,graphviz)
-       ("help2man" ,help2man)
-       ("perl" ,perl)                 ; build-aux/gitlog-to-changelog
-       ("texinfo" ,texinfo)))
+       (list graphviz help2man
+             perl                               ;build-aux/gitlog-to-changelog
+             texinfo)))
+    (build-system gnu-build-system)
     (arguments
      `(#:strip-binaries? #f))  ; binutil's strip b0rkes MesCC/M1/hex2 binaries
-    (synopsis "Scheme interpreter and C compiler for full source bootstrapping")
-    (description
-     "GNU Mes--Maxwell Equations of Software--brings the Reduced Binary Seed
-bootstrap to Guix and aims to help create full source bootstrapping for
-GNU/Linux distributions.  It consists of a mutual self-hosting Scheme
-interpreter in C and a Nyacc-based C compiler in Scheme and is compatible with
-Guile.")
-    (home-page "https://www.gnu.org/software/mes/")
-    (license gpl3+)))
-
-(define-public mes
-  (package
-    (inherit mes-0.19)
-    (version "0.23")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "mirror://gnu/mes/"
-                                  "mes-" version ".tar.gz"))
-              (sha256
-               (base32
-                "0mnryfkl0dwbr5gxp16j5s95gw7z1vm1fqa1pxabp0aiar1hw53s"))))
-    (supported-systems '("armhf-linux" "i686-linux" "x86_64-linux"))
-    (propagated-inputs
-     `(("mescc-tools" ,mescc-tools)
-       ("nyacc" ,nyacc-1.00.2)))
     (native-search-paths
      (list (search-path-specification
             (variable "C_INCLUDE_PATH")
@@ -225,180 +191,80 @@ Guile.")
            (search-path-specification
             (variable "MES_PREFIX")
             (separator #f)
-            (files '("")))))))
+            (files '("")))))
+    (synopsis "Scheme interpreter and C compiler for full source bootstrapping")
+    (description
+     "GNU Mes--Maxwell Equations of Software--brings the Reduced Binary Seed
+bootstrap to Guix and aims to help create full source bootstrapping for
+GNU/Linux distributions.  It consists of a mutual self-hosting Scheme
+interpreter in C and a Nyacc-based C compiler in Scheme and is compatible with
+Guile.")
+    (home-page "https://www.gnu.org/software/mes/")
+    (license gpl3+)))
 
-(define-public mes-rb5
-  ;; This is the Reproducible-Builds summit 5's Mes, also built on Debian
-  ;; GNU/Linux and NixOS to produce the same, bit-for-bit identical result.
+(define-public mescc-tools
   (package
-    (inherit mes)
-    (name "mes-rb5")
-    (version "0.22")
+    (name "mescc-tools")
+    (version "1.2.0")
     (source (origin
-              (method url-fetch)
-              (uri (string-append "mirror://gnu/mes/"
-                                  "mes-" version ".tar.gz"))
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://git.savannah.nongnu.org/r/mescc-tools.git")
+                    (commit (string-append "Release_" version))
+                    (recursive? #t)))             ;for M2libc
+              (file-name (git-file-name name version))
               (sha256
                (base32
-                "0p1jsrrmcbc0zrvbvnjbb6iyxr0in71km293q8qj6gnar6bw09av"))))
-    (supported-systems '("i686-linux" "x86_64-linux"))
-    (inputs '())
-    (propagated-inputs '())
-    (native-inputs
-     `(("bash" ,bash)
-       ("coreutils" ,coreutils)
-       ("grep" ,grep)
-       ("guile" ,guile-2.2)
-       ("gzip" ,gzip)
-       ("libc" ,glibc)
-       ("locales" ,glibc-utf8-locales)
-       ("make" ,gnu-make)
-       ("mes" ,mes)
-       ("mescc-tools" ,mescc-tools)
-       ("nyacc" ,nyacc-0.99)
-       ("sed" ,sed)
-       ("tar" ,tar)))
-    (supported-systems '("i686-linux"))
+                "1xkn5sspfxldy4wm8fq8gd8kwn46578zhfl12c16pq74x21zb198"))))
+    (build-system gnu-build-system)
+    (supported-systems '("i686-linux" "x86_64-linux"
+                         "armhf-linux" "aarch64-linux"
+                         "powerpc64le-linux"))
     (arguments
-     `(#:implicit-inputs? #f
-       #:strip-binaries? #f    ; binutil's strip b0rkes MesCC/M1/hex2 binaries
-       #:modules ((guix build gnu-build-system)
-                  (guix build utils)
-                  (ice-9 popen)
-                  (ice-9 rdelim))
-       #:phases
-       (modify-phases %standard-phases
-         (add-before 'configure 'setenv
-           (lambda _
-             (setenv "AR" "mesar")
-             (setenv "CC" "mescc")
-             (setenv "GUILD" "true")
-             (setenv "SCHEME" "mes")
-             (setenv "LC_ALL" "en_US.UTF-8")
-             #t))
-         (replace 'configure
-           (lambda _
-             (let ((out (assoc-ref %outputs "out")))
-               (invoke "sh" "configure.sh"
-                       (string-append "--prefix=" out)
-                       "--host=i686-unkown-linux-gnu"
-                       "--with-courage"))))
-         (replace 'build
-           (lambda _
-             (invoke "sh" "bootstrap.sh")))
-         (replace 'check
-           (lambda _
-             (copy-file "bin/mes-mescc" "bin/mes-mescc-0.21")
-             (system* "sed" "-i" "s/0\\.22/0\\.21/" "bin/mes-mescc-0.21")
-             (let ((sha256sum
-                    (read-delimited
-                     " "
-                     (open-pipe* OPEN_READ "sha256sum" "bin/mes-mescc-0.21"))))
-               (unless
-                   (equal?
-                    sha256sum
-                    "9e0bcb1633c58e7bc415f6ea27cee7951d6b0658e13cdc147e992b31a14625fb")
-                 (throw 'error "mes checksum failure"))
-               #t)))
-         (replace 'install
-           (lambda _
-             (invoke "sh" "install.sh"))))))))
-
-(define-public mescc-tools-0.5.2
-  ;; Mescc-tools used for bootstrap.
-  (let ((commit "bb062b0da7bf2724ca40f9002b121579898d4ef7")
-        (revision "0")
-        (version "0.5.2"))
-    (package
-      (name "mescc-tools")
-      (version (git-version version revision commit))
-      (source (origin
-                (method git-fetch)
-                (uri (git-reference
-                      (url "https://git.savannah.nongnu.org/r/mescc-tools.git")
-                      (commit commit)))
-                (file-name (git-file-name name version))
-                (sha256
-                 (base32
-                  "1nc6rnax66vmhqsjg0kgx23pihdcxmww6v325ywf59vsq1jqjvff"))))
-      (build-system gnu-build-system)
-      (supported-systems '("i686-linux" "x86_64-linux"))
-      (arguments
-       `(#:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
-         #:test-target "test"
-         #:phases (modify-phases %standard-phases
-                    (delete 'configure))))
-      (synopsis "Tools for the full source bootstrapping process")
-      (description
-       "Mescc-tools is a collection of tools for use in a full source
+     `(#:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
+       #:test-target "test"
+       #:phases (modify-phases %standard-phases
+                  (delete 'configure))))
+    (native-inputs (list which))
+    (synopsis "Tools for the full source bootstrapping process")
+    (description
+     "Mescc-tools is a collection of tools for use in a full source
 bootstrapping process.  It consists of the M1 macro assembler, the hex2
 linker, the blood-elf symbol table generator, the kaem shell, exec_enable and
 get_machine.")
     (home-page "https://savannah.nongnu.org/projects/mescc-tools")
-    (license gpl3+))))
+    (license gpl3+)))
 
-(define-public mescc-tools
+(define-public m2-planet
   (package
-    (inherit mescc-tools-0.5.2)
-    (name "mescc-tools")
-    (version "0.7.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append
-             "http://git.savannah.nongnu.org/cgit/mescc-tools.git/snapshot/"
-             name "-Release_" version
-             ".tar.gz"))
-       (file-name (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32
-         "1p1ijia4rm3002f5sypidl9v5gq0mlch9b0n61rpxkdsaaxjqax3"))))
-    (supported-systems '("armhf-linux" "aarch64-linux"
-                         "i686-linux" "x86_64-linux"))
+    (name "m2-planet")
+    (version "1.8.0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/oriansj/m2-planet")
+                    (commit (string-append "Release_" version))
+                    (recursive? #t)))             ;for M2libc
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "0525fhijrjljgaabmgsjy8yk2pmh5zf8lwa44wpvkjc18knl7nza"))))
+    (native-inputs (list mescc-tools))
+    (build-system gnu-build-system)
     (arguments
-     (substitute-keyword-arguments (package-arguments mescc-tools-0.5.2)
-       ((#:make-flags _)
-        `(list (string-append "PREFIX=" (assoc-ref %outputs "out"))
-               "CC=gcc"))
-       ((#:phases phases)
-        `(modify-phases ,phases
-           (add-after 'unpack 'patch-prefix
-             (lambda _
-               (substitute* "sha256.sh"
-                 (("/usr/bin/sha256sum") (which "sha256sum")))
-               #t))))))))
-
-(define-public m2-planet
-  (let ((commit "b87ddb0051b168ea45f8d49a610dcd069263336a")
-        (revision "2"))
-    (package
-      (name "m2-planet")
-      (version (string-append "1.4.0-" revision "." (string-take commit 7)))
-      (source (origin
-                (method git-fetch)
-                (uri (git-reference
-                      (url "https://github.com/oriansj/m2-planet")
-                      (commit commit)))
-                (file-name (git-file-name name version))
-                (sha256
-                 (base32
-                  "0yyc0fcbbxi9jqa1n76x0rwspdrwmc8g09jlmsw9c35nflrhmz8q"))))
-      (native-inputs
-       `(("mescc-tools" ,mescc-tools)))
-      (build-system gnu-build-system)
-      (arguments
-       `(#:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
-         #:tests? #f
-         #:phases (modify-phases %standard-phases
-                    (delete 'bootstrap)
-                    (delete 'configure))))
-      (synopsis "The PLAtform NEutral Transpiler")
-      (description
-       "M2-Planet, the PLAtform NEutral Transpiler, when combined with
+     `(#:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
+                          ,(string-append "CC=" (cc-for-target)))
+       #:tests? #f
+       #:phases (modify-phases %standard-phases
+                  (delete 'bootstrap)
+                  (delete 'configure))))
+    (synopsis "The PLAtform NEutral Transpiler")
+    (description
+     "M2-Planet, the PLAtform NEutral Transpiler, when combined with
 mescc-tools, compiles a subset of the C language into working binaries with
 introspective steps in between.  It is self-hosting and for bootstrapping it
 also has an implementation in the M1 macro assembly language.  M2-Planet is
 built as Phase-5 of the full source bootstrapping process and is capable of
 building GNU Mes.")
-      (home-page "https://github.com/oriansj/m2-planet")
-      (license gpl3+))))
+    (home-page "https://github.com/oriansj/m2-planet")
+    (license gpl3+)))
diff --git a/gnu/packages/messaging.scm b/gnu/packages/messaging.scm
index e5ecdb8894..061e2fe236 100644
--- a/gnu/packages/messaging.scm
+++ b/gnu/packages/messaging.scm
@@ -322,9 +322,7 @@ user interfaces in a fast and easy way.  It is based on GLib and ncurses.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "protobufgen.sh"
                (("/bin/sh")
-                (string-append (assoc-ref inputs "bash")
-                               "/bin/sh")))
-             #t)))))
+                (search-input-file inputs "/bin/sh"))))))))
     (native-inputs
      `(("autoconf" ,autoconf)
        ("automake" ,automake)
@@ -1127,7 +1125,7 @@ of xmpppy.")
          "share/gajim/plugins")))
       ;; Gajim needs to use the propagated inputs of its plugins.
       (search-path-specification
-       (variable "PYTHONPATH")
+       (variable "GUIX_PYTHONPATH")
        (files
         (list
          (string-append
@@ -1577,8 +1575,7 @@ messenger protocol.")
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (substitute* "../source/src/xlib/gtk.c"
                          (("libgtk-3.so")
-                         (string-append (assoc-ref inputs "gtk+")
-                                        "/lib/libgtk-3.so")))))
+                          (search-input-file inputs "/lib/libgtk-3.so")))))
         (add-after 'install 'wrap-program
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (wrap-program (string-append (assoc-ref outputs "out")
diff --git a/gnu/packages/mp3.scm b/gnu/packages/mp3.scm
index ff67d9e9e5..d59a133535 100644
--- a/gnu/packages/mp3.scm
+++ b/gnu/packages/mp3.scm
@@ -480,7 +480,7 @@ use with CD-recording software).")
             (patches (search-patches "ripperx-missing-file.patch"))))
    (build-system gnu-build-system)
    (propagated-inputs
-    `(("gs-fonts" ,gs-fonts)
+    `(("font-ghostscript" ,font-ghostscript)
       ("cdparanoia" ,cdparanoia)
       ("flac" ,flac)
       ("lame" ,lame)
diff --git a/gnu/packages/mpd.scm b/gnu/packages/mpd.scm
index b97abcafc3..f115f48d03 100644
--- a/gnu/packages/mpd.scm
+++ b/gnu/packages/mpd.scm
@@ -401,15 +401,15 @@ other MPD frontends.")
          (add-after 'install 'wrap-program
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((out         (assoc-ref outputs "out"))
-                   (python-path (getenv "PYTHONPATH")))
+                   (python-path (getenv "GUIX_PYTHONPATH")))
                (wrap-program (string-append out "/bin/mpDris2")
-                 `("PYTHONPATH" ":" prefix (,python-path)))
+                 `("GUIX_PYTHONPATH" ":" prefix (,python-path)))
                #t))))))
     (inputs
      `(("python-mpd2" ,python-mpd2)
        ("python-dbus" ,python-dbus)
        ("python-pygobject" ,python-pygobject)
-       ("python" ,python)))             ; Sets PYTHONPATH.
+       ("python" ,python)))             ; Sets GUIX_PYTHONPATH.
     ;; For bootstrapping.
     (native-inputs
      `(("autoconf" ,autoconf)
diff --git a/gnu/packages/mpi.scm b/gnu/packages/mpi.scm
index 2011cbcd29..b91afc2067 100644
--- a/gnu/packages/mpi.scm
+++ b/gnu/packages/mpi.scm
@@ -263,12 +263,11 @@ bind processes, and much more.")
                   (add-after 'unpack 'find-opensm-headers
                     (lambda* (#:key inputs #:allow-other-keys)
                       (setenv "C_INCLUDE_PATH"
-                              (string-append (assoc-ref inputs "opensm")
-                                             "/include/infiniband"))
+                              (search-input-directory inputs
+                                                      "/include/infiniband"))
                       (setenv "CPLUS_INCLUDE_PATH"
-                              (string-append (assoc-ref inputs "opensm")
-                                             "/include/infiniband"))
-                      #t))
+                              (search-input-directory inputs
+                                                      "/include/infiniband"))))
                   (add-before 'build 'remove-absolute
                     (lambda _
                       ;; Remove compiler absolute file names (OPAL_FC_ABSOLUTE
@@ -349,8 +348,7 @@ software vendors, application developers and computer science researchers.")
                  (lambda* (#:key inputs #:allow-other-keys)
                    (substitute* "ompi/mpi/java/c/Makefile.in"
                      (("\\$\\(top_builddir\\)/ompi/lib@OMPI_LIBMPI_NAME@.la")
-                      (string-append (assoc-ref inputs "openmpi") "/lib/libmpi.la")))
-                   #t))
+                      (search-input-file inputs "/lib/libmpi.la")))))
                (add-after 'install 'strip-jar-timestamps
                  (assoc-ref ant:%standard-phases 'strip-jar-timestamps)))))))
     (synopsis "Java bindings for MPI")))
diff --git a/gnu/packages/multiprecision.scm b/gnu/packages/multiprecision.scm
index 733e6548b9..163632769f 100644
--- a/gnu/packages/multiprecision.scm
+++ b/gnu/packages/multiprecision.scm
@@ -38,7 +38,7 @@
 (define-public gmp
   (package
    (name "gmp")
-   (version "6.2.0")
+   (version "6.2.1")
    (source (origin
             (method url-fetch)
             (uri
@@ -46,7 +46,7 @@
                             version ".tar.xz"))
             (sha256
              (base32
-              "09hmg8k63mbfrx1x3yy6y1yzbbq85kw5avbibhcgrg9z3ganr3i5"))
+              "1wml97fdmpcynsbw9yl77rj29qibfp652d0w3222zlfx5j8jjj7x"))
             (patches (search-patches "gmp-faulty-test.patch"))))
    (build-system gnu-build-system)
    (native-inputs `(("m4" ,m4)))
@@ -113,13 +113,13 @@ It is aimed at use in, for example, cryptography and computational algebra.")
 (define-public mpfr
   (package
    (name "mpfr")
-   (version "4.0.2")
+   (version "4.1.0")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnu/mpfr/mpfr-" version
                                 ".tar.xz"))
             (sha256 (base32
-                     "12m3amcavhpqygc499s3fzqlb8f2j2rr7fkqsm10xbjfc04fffqx"))))
+                     "0zwaanakrqjf84lfr5hfsdr7hncwv9wj0mchlr7cmxigfgqs760c"))))
    (build-system gnu-build-system)
    (outputs '("out" "debug"))
    (propagated-inputs `(("gmp" ,gmp)))            ; <mpfr.h> refers to <gmp.h>
@@ -134,14 +134,14 @@ correct rounding.")
 (define-public mpc
   (package
    (name "mpc")
-   (version "1.1.0")
+   (version "1.2.1")
    (source (origin
             (method url-fetch)
             (uri (string-append
                   "mirror://gnu/mpc/mpc-" version ".tar.gz"))
             (sha256
               (base32
-                "0biwnhjm3rx3hc0rfpvyniky4lpzsvdcwhmcn7f0h4iw2hwcb1b9"))))
+                "0n846hqfqvmsmim7qdlms0qr86f1hck19p12nq3g3z2x74n3sl0p"))))
    (build-system gnu-build-system)
    (outputs '("out" "debug"))
    (propagated-inputs `(("gmp" ,gmp)              ; <mpc.h> refers to both
diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index dee17acacb..6b544b6b2e 100644
--- a/gnu/packages/music.scm
+++ b/gnu/packages/music.scm
@@ -17,7 +17,7 @@
 ;;; Copyright © 2018 nee <nee.git@hidamari.blue>
 ;;; Copyright © 2018, 2021 Stefan Reichör <stefan@xsteve.at>
 ;;; Copyright © 2018 Pierre Neidhardt <mail@ambrevar.xyz>
-;;; Copyright © 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2018, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Björn Höfling <bjoern.hoefling@bjoernhoefling.de>
 ;;; Copyright © 2019 Gabriel Hondet <gabrielhondet@gmail.com>
 ;;; Copyright © 2019 Timotej Lazar <timotej.lazar@araneo.si>
@@ -625,7 +625,7 @@ many input formats and provides a customisable Vi-style user interface.")
              ;; Replace hard-coded diff file name.
              (substitute* "tests/integration.c"
                (("/usr/bin/diff")
-                (string-append (assoc-ref inputs "diffutils") "/bin/diff")))
+                (search-input-file inputs "/bin/diff")))
              ;; Denemo's documentation says to use this command to run its
              ;; test suite.
              (invoke "make" "-C" "tests" "check")))
@@ -633,8 +633,7 @@ many input formats and provides a customisable Vi-style user interface.")
            ;; This phase sets the default path for lilypond to its current
            ;; location in the store.
            (lambda* (#:key inputs #:allow-other-keys)
-             (let* ((lilypond (string-append (assoc-ref inputs "lilypond")
-                                             "/bin/lilypond")))
+             (let* ((lilypond (search-input-file inputs "/bin/lilypond")))
                (substitute* "src/core/prefops.c"
                  (("g_string_new \\(\"lilypond\"\\);")
                   (string-append "g_string_new (\""
@@ -1487,15 +1486,6 @@ and auto-mapping slices to MIDI note numbers.")
                             "/share/fonts/opentype/"))
        #:phases
        (modify-phases %standard-phases
-         (add-after 'unpack 'use-texlive-union
-           (lambda _
-             ;; FIXME: fonts are not found and have to be generated in HOME.
-             (setenv "HOME" "/tmp")
-             ;; The test for the "lh" package fails, even though it is among
-             ;; the inputs.
-             (substitute* "configure"
-               (("TEX_FIKPARM=.*") "TEX_FIKPARM=found\n"))
-             #t))
          (add-after 'unpack 'fix-path-references
            (lambda _
              (substitute* "scm/backend-library.scm"
@@ -1540,9 +1530,9 @@ and auto-mapping slices to MIDI note numbers.")
        ("gettext" ,gettext-minimal)
        ("imagemagick" ,imagemagick)
        ("netpbm" ,netpbm)               ;for pngtopnm
-       ("texlive" ,(texlive-union (list texlive-metapost
+       ("texlive" ,(texlive-updmap.cfg (list texlive-metapost
                                         texlive-generic-epsf
-                                        texlive-latex-lh
+                                        texlive-lh
                                         texlive-latex-cyrillic)))
        ("texinfo" ,texinfo)
        ("texi2html" ,texi2html-1.82)
@@ -1592,7 +1582,7 @@ Guile.")
        ("python-iniconfig" ,python-iniconfig)
        ("python-isort" ,python-isort)
        ("python-mypy" ,python-mypy)
-       ("python-pytest" ,python-pytest-6)
+       ("python-pytest" ,python-pytest)
        ("python-pytest-cov" ,python-pytest-cov)
        ("python-sphinx-autodoc-typehints" ,python-sphinx-autodoc-typehints)))
     (inputs
@@ -1647,7 +1637,7 @@ typographic detail of symbols on the page.")
        ("python-iniconfig" ,python-iniconfig)
        ("python-isort" ,python-isort)
        ("python-mypy" ,python-mypy)
-       ("python-pytest" ,python-pytest-6)
+       ("python-pytest" ,python-pytest)
        ("python-pytest-cov" ,python-pytest-cov)
        ("python-pytest-helpers-namespace" ,python-pytest-helpers-namespace)))
     (propagated-inputs
@@ -1689,7 +1679,7 @@ and manipulating rhythms such as accelerandi, taleas, and more.")
        ("python-iniconfig" ,python-iniconfig)
        ("python-isort" ,python-isort)
        ("python-mypy" ,python-mypy)
-       ("python-pytest" ,python-pytest-6)
+       ("python-pytest" ,python-pytest)
        ("python-pytest-cov" ,python-pytest-cov)
        ("python-pytest-helpers-namespace" ,python-pytest-helpers-namespace)))
     (propagated-inputs
@@ -1736,7 +1726,7 @@ music theorist Paul Nauert's quantization grids or Q-Grids, for short.")
        ("python-iniconfig" ,python-iniconfig)
        ("python-isort" ,python-isort)
        ("python-mypy" ,python-mypy)
-       ("python-pytest" ,python-pytest-6)
+       ("python-pytest" ,python-pytest)
        ("python-pytest-cov" ,python-pytest-cov)
        ("python-pytest-helpers-namespace" ,python-pytest-helpers-namespace)))
     (propagated-inputs
@@ -2096,9 +2086,9 @@ for path in [path for path in sys.path if 'site-packages' in path]: site.addsite
            (lambda* (#:key inputs outputs #:allow-other-keys)
              ;; Make sure 'solfege' runs with the correct PYTHONPATH.
              (let* ((out (assoc-ref outputs "out"))
-                    (path (getenv "PYTHONPATH")))
+                    (path (getenv "GUIX_PYTHONPATH")))
                (wrap-program (string-append out "/bin/solfege")
-                 `("PYTHONPATH" ":" prefix (,path))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,path))))
              #t)))))
     (inputs
      `(("python" ,python-2)
@@ -3204,9 +3194,7 @@ can connect to any JACK port and record the output into a stereo WAV file.")
              ;; Fix reference to dlopened libraries.
              (substitute* "jackselect/alsainfo.py"
                (("libasound.so.2")
-                (string-append (assoc-ref inputs "alsa-lib")
-                               "/lib/libasound.so.2")))
-             #t))
+                (search-input-file inputs "/lib/libasound.so.2")))))
          (replace 'build
            (assoc-ref python:%standard-phases 'build))
          (add-after 'install 'wrap
@@ -3477,8 +3465,7 @@ socket or command line.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "curseradio/curseradio.py"
                (("/usr/bin/mpv")
-                (string-append (assoc-ref inputs "mpv") "/bin/mpv")))
-             #t)))))
+                (search-input-file inputs "/bin/mpv"))))))))
     (propagated-inputs
      `(("python-lxml" ,python-lxml)
        ("python-requests" ,python-requests)
@@ -6378,7 +6365,6 @@ and as an LV2 plugin.")
    (build-system meson-build-system)
    (arguments
     `(#:glib-or-gtk? #t
-      #:meson ,meson-0.55
       #:configure-flags
       `("-Dtests=true"
         "-Dmanpage=true"
diff --git a/gnu/packages/ncurses.scm b/gnu/packages/ncurses.scm
index 2e63565591..edf475a8ef 100644
--- a/gnu/packages/ncurses.scm
+++ b/gnu/packages/ncurses.scm
@@ -5,7 +5,7 @@
 ;;; Copyright © 2016 Nikita <nikita@n0.is>
 ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
-;;; Copyright © 2017, 2019, 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2017, 2019, 2020, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2020 Michael Rohleder <mike@rohleder.de>
 ;;;
@@ -36,16 +36,17 @@
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages swig)
   #:use-module (gnu packages linux)
-  #:use-module (guix utils))
+  #:use-module (guix utils)
+  #:use-module (ice-9 match))
 
 (define-public ncurses
   (package
     (name "ncurses")
-    (version "6.2")
+    (version "6.2.20210619")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnu/ncurses/ncurses-"
-                                  (car (string-split version #\-))
+                                  (version-major+minor version)
                                   ".tar.gz"))
               (sha256
                (base32
@@ -57,8 +58,7 @@
      (let ((patch-makefile-phase
             '(lambda _
                (for-each patch-makefile-SHELL
-                         (find-files "." "Makefile.in"))
-               #t))
+                         (find-files "." "Makefile.in"))))
            (configure-phase
             ;; The 'configure' script does not understand '--docdir', so we must
             ;; override that and use '--mandir' instead.
@@ -74,18 +74,20 @@
                         (if target
                             (cons (string-append "--host=" target)
                                   configure-flags)
-                            configure-flags))
-                 #t)))
+                            configure-flags)))))
            (apply-rollup-patch-phase
             ;; Ncurses distributes "stable" patchsets to be applied on top
             ;; of the release tarball.  These are only available as shell
             ;; scripts(!) so we decompress and apply them in a phase.
             ;; See <https://invisible-mirror.net/archives/ncurses/6.1/README>.
             '(lambda* (#:key inputs native-inputs #:allow-other-keys)
-               (copy-file (assoc-ref (or native-inputs inputs) "rollup-patch")
-                          (string-append (getcwd) "/rollup-patch.sh.bz2"))
-               (invoke "bzip2" "-d" "rollup-patch.sh.bz2")
-               (invoke "sh" "rollup-patch.sh")))
+               (let ((rollup-patch (assoc-ref (or native-inputs inputs)
+                                              "rollup-patch")))
+                 (when rollup-patch
+                   (copy-file rollup-patch
+                              (string-append (getcwd) "/rollup-patch.sh.bz2"))
+                   (invoke "bzip2" "-d" "rollup-patch.sh.bz2")
+                   (invoke "sh" "rollup-patch.sh")))))
            (remove-shebang-phase
             '(lambda _
                ;; To avoid retaining a reference to the bootstrap Bash via the
@@ -98,8 +100,7 @@
                  (("@SHELL@ \\$0")
                   "$0")
                  (("mandir=.*$")
-                  "mandir=share/man"))
-               #t))
+                  "mandir=share/man"))))
            (post-install-phase
             `(lambda* (#:key outputs #:allow-other-keys)
                (let ((out (assoc-ref outputs "out")))
@@ -156,13 +157,12 @@
                                            (when (file-exists? packagew.pc)
                                              (symlink packagew.pc package.pc))))
                                        '())))
-                             '("curses" "ncurses" "form" "panel" "menu")))
-                 #t))))
+                             '("curses" "ncurses" "form" "panel" "menu")))))))
        `(#:configure-flags
          ,(cons*
            'quasiquote
            `(("--with-shared" "--without-debug" "--enable-widec"
-              
+
               "--enable-pc-files"
               ,(list 'unquote '(string-append "--with-pkg-config-libdir="
                                               (assoc-ref %outputs "out")
@@ -195,6 +195,8 @@
               ,@(if (target-mingw?) '("--enable-term-driver") '()))))
          #:tests? #f                  ; no "check" target
          #:phases (modify-phases %standard-phases
+                    (add-after 'unpack 'apply-rollup-patch
+                      ,apply-rollup-patch-phase)
                     (replace 'configure ,configure-phase)
                     (add-after 'install 'post-install
                       ,post-install-phase)
@@ -206,6 +208,17 @@
      `(,@(if (%current-target-system)
              `(("self" ,this-package))            ;for `tic'
              '())
+       ("rollup-patch"
+        ,(origin
+           (method url-fetch)
+           (uri (match (string-split (version-major+minor+point version) #\.)
+                  ((major minor point)
+                   (string-append "https://invisible-mirror.net/archives"
+                                  "/ncurses/" major "." minor "/ncurses-"
+                                  major "." minor "-" point "-patch.sh.bz2"))))
+           (sha256
+            (base32
+             "1b6522cvi4066bgh9lp93q8lk93zcjjssvnw1512z447xvazy2y6"))))
        ("pkg-config" ,pkg-config)))
     (native-search-paths
      (list (search-path-specification
diff --git a/gnu/packages/netpbm.scm b/gnu/packages/netpbm.scm
index 96025661ca..5f3dcdb8ea 100644
--- a/gnu/packages/netpbm.scm
+++ b/gnu/packages/netpbm.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013, 2015 Andreas Enge <andreas@enge.fr>
-;;; Copyright © 2015, 2016 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -132,8 +132,7 @@
              (display (string-append "LDFLAGS += -Wl,-rpath=" %output "/lib") f)
              (close-port f))
 
-           (let ((rgb (string-append (assoc-ref inputs "xorg-rgb")
-                                     "/share/X11/rgb.txt")))
+           (let ((rgb (search-input-file inputs "/share/X11/rgb.txt")))
              (substitute* "config.mk"
                (("/usr/share/netpbm/rgb.txt") rgb))
 
@@ -143,8 +142,7 @@
                (("\"%s/gs\"")
                 "\"%s/gsc\"")
                (("/usr/bin/gs")
-                (string-append (assoc-ref inputs "ghostscript") "/bin/gsc"))))
-           #t))
+                (search-input-file inputs "/bin/gsc"))))))
        (add-before 'check 'setup-check
          (lambda _
            ;; install temporarily into /tmp/netpbm
diff --git a/gnu/packages/nettle.scm b/gnu/packages/nettle.scm
index 7f85f54fbf..f9f34467c9 100644
--- a/gnu/packages/nettle.scm
+++ b/gnu/packages/nettle.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2012, 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016, 2021 Mark H Weaver <mhw@netris.org>
-;;; Copyright © 2017 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2017, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -73,43 +73,21 @@ cryptographic toolkits for object-oriented languages or in applications
 themselves.")
     (license gpl2+)))
 
-(define-public nettle-3.5
+(define-public nettle
   ;; This version is not API-compatible with version 2.  In particular, lsh
   ;; cannot use it yet.  So keep it separate.
   (package (inherit nettle-2)
-    (version "3.5.1")
-    (replacement nettle-3.5/fixed)
+    (version "3.7.3")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnu/nettle/nettle-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "06clvkdfxhlbagn4afssylmn5vrak59dlmnvy8b2xc31hycs3k3m"))))
+                "1w5wwc3q0r97d2ifhx77cw7y8s20bm8x52is9j93p2h47yq5w7v6"))))
     (arguments
      (substitute-keyword-arguments (package-arguments nettle-2)
        ((#:configure-flags flags)
         ;; Build "fat" binaries where the right implementation is chosen
         ;; at run time based on CPU features (starting from 3.1.)
         `(cons "--enable-fat" ,flags))))))
-
-(define nettle-3.5/fixed
-  (package-with-extra-patches
-   nettle-3.5
-   (search-patches "nettle-3.5-check-_pkcs1_sec_decrypt-msg-len.patch"
-                   "nettle-3.5-CVE-2021-3580-pt1.patch"
-                   "nettle-3.5-CVE-2021-3580-pt2.patch")))
-
-(define-public nettle-3.7
-  (package (inherit nettle-3.5)
-    (version "3.7.3")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "mirror://gnu/nettle/nettle-"
-                                  version ".tar.gz"))
-              (sha256
-               (base32
-                "1w5wwc3q0r97d2ifhx77cw7y8s20bm8x52is9j93p2h47yq5w7v6"))))))
-
-;;; Upgrading Nettle on master would cause 10000+ packages to be rebuilt.
-(define-public nettle nettle-3.5)
diff --git a/gnu/packages/networking.scm b/gnu/packages/networking.scm
index 05fd092b23..1166a6b205 100644
--- a/gnu/packages/networking.scm
+++ b/gnu/packages/networking.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2017, 2018, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015, 2016, 2017, 2018, 2020 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015, 2016, 2017, 2021 Stefan Reichör <stefan@xsteve.at>
@@ -644,26 +644,24 @@ systems with no further dependencies.")
                               "blueman-manager.in" "blueman-mechanism.in"
                               "blueman-rfcomm-watcher.in" "blueman-sendto.in"
                               "blueman-services.in" "blueman-tray.in")
-                 (("@PYTHON@") (string-append (assoc-ref inputs "python")
-                                              "/bin/python"
-                                              ,(version-major+minor
-                                                (package-version python))))))
-             #t))
+                 (("@PYTHON@")
+                  (search-input-file inputs
+                                     (string-append
+                                      "/bin/python"
+                                      ,(version-major+minor
+                                        (package-version python)))))))))
          ;; Fix loading of external programs.
          (add-after 'unpack 'patch-external-programs
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* '("blueman/main/NetConf.py"
                             "blueman/main/PPPConnection.py")
                (("/usr/sbin/bluetoothd")
-                (string-append (assoc-ref inputs "bluez")
-                               "/libexec/bluetooth/bluetoothd"))
+                (search-input-directory inputs
+                                        "/libexec/bluetooth/bluetoothd"))
                (("/sbin/iptables")
-                (string-append (assoc-ref inputs "iptables")
-                               "/sbin/iptables"))
+                (search-input-file inputs "/sbin/iptables"))
                (("/usr/sbin/pppd")
-                (string-append (assoc-ref inputs "ppp")
-                               "/sbin/pppd")))
-             #t))
+                (search-input-file inputs "/sbin/pppd")))))
          ;; Fix loading of pulseaudio libraries.
          (add-after 'unpack 'patch-pulseaudio-libraries
            (lambda* (#:key inputs #:allow-other-keys)
@@ -689,7 +687,7 @@ systems with no further dependencies.")
                (for-each
                 (lambda (program)
                   (wrap-program program
-                    `("PYTHONPATH" = (,(getenv "PYTHONPATH") ,lib))
+                    `("GUIX_PYTHONPATH" = (,(getenv "GUIX_PYTHONPATH") ,lib))
                     `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH")))))
                 (append
                  (map (lambda (prog) (string-append bin prog))
@@ -1741,9 +1739,7 @@ TCP connection, TLS handshake and so on) in the terminal.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "test-suite/testheaders.sh"
                (("/bin/true")
-                (string-append (assoc-ref inputs "coreutils")
-                               "/bin/true")))
-             #t)))))
+                (search-input-file inputs "/bin/true"))))))))
     (inputs
      `(("perl" ,perl)
        ("openldap" ,openldap)
@@ -1838,8 +1834,8 @@ live network and disk I/O bandwidth monitor.")
                       #t))
                   (add-after 'build 'absolutize-tools
                     (lambda* (#:key inputs #:allow-other-keys)
-                      (let ((ethtool (string-append (assoc-ref inputs "ethtool")
-                                                    "/sbin/ethtool")))
+                      (let ((ethtool (search-input-file inputs
+                                                        "/sbin/ethtool")))
                         (substitute* "scripts/airmon-ng"
                           (("ethtool ")
                            (string-append ethtool " ")))
@@ -3421,7 +3417,7 @@ and targeted primarily for asynchronous processing of HTTP-requests.")
       (build-system cmake-build-system)
       (inputs
        `(("argon2" ,argon2)
-         ("nettle" ,nettle-3.7)
+         ("nettle" ,nettle)
          ("readline" ,readline)
          ("jsoncpp" ,jsoncpp)
          ("openssl" ,openssl)             ;required for the DHT proxy
@@ -3671,11 +3667,8 @@ module @code{batman-adv}, for Layer 2.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
                     (man (string-append out "/share/man")))
-               (invoke "make"
-                       (string-append "PYTHONPATH=" (getenv "PYTHONPATH"))
-                       "doc/pagekite.1")
-               (install-file "doc/pagekite.1" (string-append man "/man1"))
-               #t))))))
+               (invoke "make" "doc/pagekite.1")
+               (install-file "doc/pagekite.1" (string-append man "/man1"))))))))
     (inputs
      `(("python-six" ,python-six)
        ("python-socksipychain" ,python-socksipychain)))
diff --git a/gnu/packages/ninja.scm b/gnu/packages/ninja.scm
index 11ee472d56..4c4a2f37a7 100644
--- a/gnu/packages/ninja.scm
+++ b/gnu/packages/ninja.scm
@@ -31,7 +31,7 @@
 (define-public ninja
   (package
     (name "ninja")
-    (version "1.10.0")
+    (version "1.10.2")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -40,7 +40,7 @@
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "1fbzl7mrcrwp527sgkc1npfl3k6bbpydpiq98xcf1a1hkrx0z5x4"))))
+                "0mspq4mvx41qri2v2zlg2y3znx5gfw6d8s3czbcfpr2218qbpz55"))))
     (build-system gnu-build-system)
     (inputs `(("python" ,python-wrapper)))
     (arguments
@@ -51,8 +51,7 @@
              (substitute* "src/subprocess-posix.cc"
                (("/bin/sh") (which "sh")))
              (substitute* "src/subprocess_test.cc"
-               (("/bin/echo") (which "echo")))
-             #t))
+               (("/bin/echo") (which "echo")))))
          (replace 'build
            (lambda _
              (invoke "./configure.py" "--bootstrap")))
@@ -67,8 +66,7 @@
                     (bin (string-append out "/bin"))
                     (doc (string-append out "/share/doc/ninja")))
                (install-file "ninja" bin)
-               (install-file "doc/manual.asciidoc" doc)
-               #t))))))
+               (install-file "doc/manual.asciidoc" doc)))))))
     (home-page "https://ninja-build.org/")
     (synopsis "Small build system")
     (description
diff --git a/gnu/packages/node.scm b/gnu/packages/node.scm
index 36c45e9c7a..6285138e06 100644
--- a/gnu/packages/node.scm
+++ b/gnu/packages/node.scm
@@ -2,7 +2,7 @@
 ;;; Copyright © 2014 Cyrill Schenkel <cyrill.schenkel@gmail.com>
 ;;; Copyright © 2015 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2015, 2016 David Thompson <davet@gnu.org>
-;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017 Mike Gerwitz <mtg@gnu.org>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018, 2019, 2020, 2021 Marius Bakke <marius@gnu.org>
@@ -169,10 +169,9 @@
                (format #t "configure flags: ~s~%" flags)
                ;; Node's configure script expects the CC environment variable to
                ;; be set.
-               (setenv "CC" (string-append (assoc-ref inputs "gcc") "/bin/gcc"))
+               (setenv "CC" (search-input-file inputs "/bin/gcc"))
                (apply invoke
-                      (string-append (assoc-ref inputs "python")
-                                     "/bin/python")
+                      (search-input-file inputs "/bin/python")
                       "configure" flags))))
          (add-after 'patch-shebangs 'patch-npm-shebang
            (lambda* (#:key outputs #:allow-other-keys)
@@ -387,8 +386,7 @@ Node.js and web browsers.")
          (delete 'configure)
          (replace 'build
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((esbuild (string-append (assoc-ref inputs "esbuild")
-                                           "/bin/esbuild")))
+             (let ((esbuild (search-input-file inputs "/bin/esbuild")))
                (invoke esbuild
                        "--platform=node"
                        "--outfile=lib/builder.js"
@@ -443,8 +441,7 @@ Node.js and web browsers.")
          (delete 'configure)
          (replace 'build
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((esbuild (string-append (assoc-ref inputs "esbuild")
-                                           "/bin/esbuild")))
+             (let ((esbuild (search-input-file inputs "/bin/esbuild")))
                (invoke esbuild
                        "--platform=node"
                        "--outfile=lib/frontend.js"
@@ -498,8 +495,7 @@ Node.js and web browsers.")
          (delete 'configure)
          (replace 'build
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((esbuild (string-append (assoc-ref inputs "esbuild")
-                                           "/bin/esbuild")))
+             (let ((esbuild (search-input-file inputs "/bin/esbuild")))
                (invoke esbuild
                        "--platform=node"
                        "--outfile=lib/api.js"
@@ -552,8 +548,7 @@ parser definition into a C output.")
        (modify-phases %standard-phases
          (replace 'configure
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((esbuild (string-append (assoc-ref inputs "esbuild")
-                                           "/bin/esbuild")))
+             (let ((esbuild (search-input-file inputs "/bin/esbuild")))
                (invoke esbuild
                        "--platform=node"
                        "--outfile=bin/generate.js"
@@ -639,8 +634,7 @@ source files.")
                  ;; be set.
                  (setenv "CC" ,(cc-for-target))
                  (apply invoke
-                        (string-append (assoc-ref inputs "python")
-                                       "/bin/python3")
+                        (search-input-file inputs "/bin/python3")
                         "configure" flags))))
            (replace 'patch-files
              (lambda* (#:key inputs #:allow-other-keys)
diff --git a/gnu/packages/nss.scm b/gnu/packages/nss.scm
index 0444b47071..55eddc0c91 100644
--- a/gnu/packages/nss.scm
+++ b/gnu/packages/nss.scm
@@ -3,8 +3,9 @@
 ;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2016, 2017, 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
-;;; Copyright © 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2020, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2020 Jonathan Brielmaier <jonathan.brielmaier@web.de>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -23,6 +24,7 @@
 
 (define-module (gnu packages nss)
   #:use-module (guix packages)
+  #:use-module (guix utils)
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
   #:use-module ((guix licenses) #:prefix license:)
@@ -30,13 +32,12 @@
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages perl)
-  #:use-module (gnu packages sqlite)
-  #:use-module (ice-9 match))
+  #:use-module (gnu packages sqlite))
 
 (define-public nspr
   (package
     (name "nspr")
-    (version "4.29")
+    (version "4.31")
     (source (origin
              (method url-fetch)
              (uri (string-append
@@ -44,7 +45,7 @@
                    version "/src/nspr-" version ".tar.gz"))
              (sha256
               (base32
-               "10i5x637x0jqmdi47grkzgn56fg6770naa3wrhr4dmsrh3dnna12"))))
+               "1j5b2m8cjlhnnv8sq34587avaagkqvh521w4f95miwgvsn3xlaap"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("perl" ,perl)))
@@ -70,10 +71,12 @@ platform-neutral API for system level and libc-like functions.  It is used
 in the Mozilla clients.")
     (license license:mpl2.0)))
 
+;;; Note: When updating, also update the nss-certs package, which cannot
+;;; inherit from here.
 (define-public nss
   (package
     (name "nss")
-    (version "3.59")
+    (version "3.67")
     (source (origin
               (method url-fetch)
               (uri (let ((version-with-underscores
@@ -84,22 +87,21 @@ in the Mozilla clients.")
                       "nss-" version ".tar.gz")))
               (sha256
                (base32
-                "096fs3z21r171q24ca3rq53p1389xmvqz1f2rpm7nlm8r9s82ag6"))
+                "0zyfi27lbdz1bmk9dmsivcya4phx25rzlxqcnjab69yd928rlm7n"))
               ;; Create nss.pc and nss-config.
               (patches (search-patches "nss-3.56-pkgconfig.patch"
+                                       "nss-getcwd-nonnull.patch"
                                        "nss-increase-test-timeout.patch"))
               (modules '((guix build utils)))
               (snippet
                '(begin
                   ;; Delete the bundled copy of these libraries.
                   (delete-file-recursively "nss/lib/zlib")
-                  (delete-file-recursively "nss/lib/sqlite")
-                  #t))))
+                  (delete-file-recursively "nss/lib/sqlite")))))
     (build-system gnu-build-system)
     (outputs '("out" "bin"))
     (arguments
-     `(#:parallel-build? #f ; not supported
-       #:make-flags
+     `(#:make-flags
        (let* ((out (assoc-ref %outputs "out"))
               (nspr (string-append (assoc-ref %build-inputs "nspr")))
               (rpath (string-append "-Wl,-rpath=" out "/lib/nss")))
@@ -119,27 +121,27 @@ in the Mozilla clients.")
        (modify-phases %standard-phases
          (replace 'configure
            (lambda _
-             (setenv "CC" "gcc")
+             (setenv "CC" ,(cc-for-target))
              ;; Tells NSS to build for the 64-bit ABI if we are 64-bit system.
-             ,@(match (%current-system)
-                 ((or "x86_64-linux" "aarch64-linux")
-                  `((setenv "USE_64" "1")))
-                 (_
-                  '()))
-             #t))
+             ,@(if (target-64bit?)
+                   `((setenv "USE_64" "1"))
+                   '())))
          (replace 'check
-           (lambda _
-             ;; Use 127.0.0.1 instead of $HOST.$DOMSUF as HOSTADDR for testing.
-             ;; The later requires a working DNS or /etc/hosts.
-             (setenv "DOMSUF" "localdomain")
-             (setenv "USE_IP" "TRUE")
-             (setenv "IP_ADDRESS" "127.0.0.1")
+           (lambda* (#:key tests? #:allow-other-keys)
+             (if tests?
+                 (begin
+                   ;; Use 127.0.0.1 instead of $HOST.$DOMSUF as HOSTADDR for
+                   ;; testing.  The latter requires a working DNS or /etc/hosts.
+                   (setenv "DOMSUF" "localdomain")
+                   (setenv "USE_IP" "TRUE")
+                   (setenv "IP_ADDRESS" "127.0.0.1")
 
-             ;; The "PayPalEE.cert" certificate expires every six months,
-             ;; leading to test failures:
-             ;; <https://bugzilla.mozilla.org/show_bug.cgi?id=609734>.  To
-             ;; work around that, set the time to roughly the release date.
-             (invoke "faketime" "2020-11-01" "./nss/tests/all.sh")))
+                   ;; The "PayPalEE.cert" certificate expires every six months,
+                   ;; leading to test failures:
+                   ;; <https://bugzilla.mozilla.org/show_bug.cgi?id=609734>.  To
+                   ;; work around that, set the time to roughly the release date.
+                   (invoke "faketime" "2021-06-01" "./nss/tests/all.sh"))
+                 (format #t "test suite not run~%"))))
          (replace 'install
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
@@ -160,21 +162,23 @@ in the Mozilla clients.")
                ;; Install other files.
                (copy-recursively "dist/public/nss" inc)
                (copy-recursively (string-append obj "/bin") bin)
-               (copy-recursively (string-append obj "/lib") lib)
-               #t))))))
+               (copy-recursively (string-append obj "/lib") lib)))))))
     (inputs
-     `(("sqlite" ,sqlite)
+     `(;; XXX: Build with SQLite 3.33 to work around
+       ;; https://bugzilla.mozilla.org/show_bug.cgi?id=1714874
+       ("sqlite" ,sqlite-3.33)
        ("zlib" ,zlib)))
-    (propagated-inputs `(("nspr" ,nspr))) ; required by nss.pc.
-    (native-inputs `(("perl" ,perl)
-                     ("libfaketime" ,libfaketime))) ;for tests
+    (propagated-inputs
+     `(("nspr" ,nspr)))                 ;required by nss.pc.
+    (native-inputs
+     `(("perl" ,perl)
+       ("libfaketime" ,libfaketime)))   ;for tests
 
     ;; The NSS test suite takes around 48 hours on Loongson 3A (MIPS) when
     ;; another build is happening concurrently on the same machine.
-    (properties '((timeout . 216000)))  ; 60 hours
+    (properties '((timeout . 216000)))  ;60 hours
 
-    (home-page
-     "https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS")
+    (home-page "https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS")
     (synopsis "Network Security Services")
     (description
      "Network Security Services (@dfn{NSS}) is a set of libraries designed to
diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index 727c7a08c8..d987201508 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -210,8 +210,7 @@ This package produces a native @command{ocamlc} and a bytecode @command{ocamllex
        (modify-phases %standard-phases
          (add-after 'unpack 'patch-/bin/sh-references
            (lambda* (#:key inputs #:allow-other-keys)
-             (let* ((sh (string-append (assoc-ref inputs "bash")
-                                       "/bin/sh"))
+             (let* ((sh (search-input-file inputs "/bin/sh"))
                     (quoted-sh (string-append "\"" sh "\"")))
                (with-fluids ((%default-port-encoding #f))
                  (for-each
@@ -805,8 +804,7 @@ the opam file format.")
                  (add-before 'build 'pre-build
                    (lambda* (#:key inputs make-flags #:allow-other-keys)
                      (let ((bash (assoc-ref inputs "bash"))
-                           (bwrap (string-append (assoc-ref inputs "bubblewrap")
-                                                 "/bin/bwrap")))
+                           (bwrap (search-input-file inputs "/bin/bwrap")))
                        (substitute* "src/core/opamSystem.ml"
                          (("\"/bin/sh\"")
                           (string-append "\"" bash "/bin/sh\""))
@@ -3674,8 +3672,8 @@ and 4 (random based) according to RFC 4122.")
        (modify-phases %standard-phases
          (add-before 'configure 'set-shell
            (lambda* (#:key inputs #:allow-other-keys)
-             (setenv "CONFIG_SHELL" (string-append (assoc-ref inputs "bash")
-                                                   "/bin/sh")))))))
+             (setenv "CONFIG_SHELL"
+                     (search-input-file inputs "/bin/sh")))))))
     (inputs `(("lablgtk" ,lablgtk)))
     (properties `((upstream-name . "ocamlgraph")))
     (home-page "http://ocamlgraph.lri.fr/")
@@ -7197,8 +7195,9 @@ browsers and Node.js.")
               #t)))))
     (native-inputs
      `(("which" ,which)
-       ("texlive" ,(texlive-union (list texlive-fonts-ec texlive-preprint
-                                        texlive-latex-hyperref texlive-bibtex)))))
+       ("texlive" ,(texlive-updmap.cfg
+                    (list texlive-fonts-ec texlive-preprint
+                          texlive-latex-hyperref texlive-bibtex)))))
     (propagated-inputs
      `(("hevea" ,hevea)))
     (home-page "https://www.lri.fr/~filliatr/bibtex2html/")
diff --git a/gnu/packages/onc-rpc.scm b/gnu/packages/onc-rpc.scm
index 8b3892d2f0..aa49f5fb6a 100644
--- a/gnu/packages/onc-rpc.scm
+++ b/gnu/packages/onc-rpc.scm
@@ -37,7 +37,7 @@
 (define-public libtirpc
   (package
     (name "libtirpc")
-    (version "1.2.5")
+    (version "1.3.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/libtirpc/libtirpc/"
@@ -45,26 +45,22 @@
                                   version ".tar.bz2"))
               (sha256
                (base32
-                "1jl6a5kkw2vrp4gb6pmvf72rqimywvwfb9f7iz2xjg4wgq63bdpk"))))
+                "05zf16ilwwkzv4cccaac32nssrj3rg444n9pskiwbgk6y359an14"))))
     (build-system gnu-build-system)
     (arguments
      `(#:configure-flags '("--disable-static")
        #:phases
        (modify-phases %standard-phases
-         (add-after 'unpack 'remote-dangling-symlink
-           (lambda _
+         (add-after 'unpack 'adjust-netconfig-reference
+           (lambda* (#:key outputs #:allow-other-keys)
              (substitute* '("man/netconfig.5"
                             "man/getnetconfig.3t"
                             "man/getnetpath.3t"
                             "man/rpc.3t"
                             "src/getnetconfig.c"
                             "tirpc/netconfig.h")
-               (("/etc/netconfig") (string-append %output "/etc/netconfig")))
-
-             ;; Remove the dangling symlinks since it breaks the
-             ;; 'patch-source-shebangs' file tree traversal.
-             (delete-file "INSTALL")
-             #t)))))
+               (("/etc/netconfig") (string-append (assoc-ref outputs "out")
+                                                  "/etc/netconfig"))))))))
     (inputs `(("mit-krb5" ,mit-krb5)))
     (home-page "https://sourceforge.net/projects/libtirpc/")
     (synopsis "Transport-independent Sun/ONC RPC implementation")
@@ -78,9 +74,7 @@ IPv4 and IPv6.  ONC RPC is notably used by the network file system (NFS).")
   (package/inherit libtirpc
     (name "libtirpc-hurd")
     (source (origin (inherit (package-source libtirpc))
-                    (patches (append (origin-patches (package-source libtirpc))
-                                     (search-patches "libtirpc-hurd.patch"
-                                                     "libtirpc-hurd-client.patch")))))
+                    (patches (search-patches "libtirpc-hurd.patch"))))
     (arguments
      (substitute-keyword-arguments (package-arguments libtirpc)
        ((#:configure-flags flags ''())
diff --git a/gnu/packages/openldap.scm b/gnu/packages/openldap.scm
index 400f10600f..861568c018 100644
--- a/gnu/packages/openldap.scm
+++ b/gnu/packages/openldap.scm
@@ -7,6 +7,7 @@
 ;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2020 Lars-Dominik Braun <ldb@leibniz-psychology.org>
 ;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -61,8 +62,7 @@
 (define-public openldap
   (package
    (name "openldap")
-   (replacement openldap-2.4.57)
-   (version "2.4.50")
+   (version "2.4.57")
    (source (origin
              (method url-fetch)
              ;; See <http://www.openldap.org/software/download/> for a list of
@@ -78,7 +78,7 @@
                          "openldap-release/openldap-" version ".tgz")))
              (sha256
               (base32
-               "1f46nlfwmys110j36sifm7ah8m8f3s10c3vaiikmmigmifapvdaw"))))
+               "0nmlyqhc52v24b4awh914sczmvxbazgq2cnlycvb9dgcwvhlgfn7"))))
    (build-system gnu-build-system)
    (inputs `(("bdb" ,bdb-5.3)
              ("cyrus-sasl" ,cyrus-sasl)
@@ -126,27 +126,6 @@
    (license openldap2.8)
    (home-page "https://www.openldap.org/")))
 
-(define-public openldap-2.4.57
-  (package
-    (inherit openldap)
-    (version "2.4.57")
-    (source (origin
-              (method url-fetch)
-              ;; See <http://www.openldap.org/software/download/> for a list of
-              ;; mirrors.
-              (uri (list (string-append
-                          "ftp://mirror.switch.ch/mirror/OpenLDAP/"
-                          "openldap-release/openldap-" version ".tgz")
-                         (string-append
-                          "https://www.openldap.org/software/download/OpenLDAP/"
-                          "openldap-release/openldap-" version ".tgz")
-                         (string-append
-                          "ftp://ftp.dti.ad.jp/pub/net/OpenLDAP/"
-                          "openldap-release/openldap-" version ".tgz")))
-              (sha256
-               (base32
-                "0nmlyqhc52v24b4awh914sczmvxbazgq2cnlycvb9dgcwvhlgfn7"))))))
-
 (define-public nss-pam-ldapd
   (package
     (name "nss-pam-ldapd")
@@ -250,7 +229,7 @@ servers from Python programs.")
      `(#:modules ((srfi srfi-1)
                   (guix build gnu-build-system)
                   ((guix build python-build-system)
-                   #:select (python-version))
+                   #:select (add-installed-pythonpath))
                   (guix build utils))
        #:imported-modules ((guix build python-build-system)
                            ,@%gnu-build-system-modules)
@@ -281,8 +260,8 @@ servers from Python programs.")
                (("'/usr/bin/certutil'")
                 (string-append "'" (which "certutil") "'"))
                (("'/usr/bin/c_rehash'")
-                (string-append "'" (which "perl") "', '" (which "c_rehash") "'")))
-             #t))
+                (string-append "'" (which "perl") "', '"
+                               (which "c_rehash") "'")))))
          (add-after 'unpack 'overwrite-default-locations
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out")))
@@ -300,28 +279,21 @@ servers from Python programs.")
                (substitute* '("src/lib389/lib389/instance/setup.py"
                               "src/lib389/lib389/instance/remove.py")
                  (("etc_dirsrv_path = .*")
-                  "etc_dirsrv_path = '/etc/dirsrv/'\n"))
-               #t)))
+                  "etc_dirsrv_path = '/etc/dirsrv/'\n")))))
          (add-after 'unpack 'fix-install-location-of-python-tools
            (lambda* (#:key inputs outputs #:allow-other-keys)
-             (let* ((out (assoc-ref outputs "out"))
-                    (pythondir (string-append
-                                out "/lib/python"
-                                (python-version (assoc-ref inputs "python"))
-                                "/site-packages/")))
+             (let* ((out (assoc-ref outputs "out")))
                ;; Install directory must be on PYTHONPATH.
-               (setenv "PYTHONPATH"
-                       (string-append (getenv "PYTHONPATH")
-                                      ":" pythondir))
+               (add-installed-pythonpath inputs outputs)
                ;; Install directory must exist.
                (mkdir-p pythondir)
                (substitute* "src/lib389/setup.py"
                  (("/usr") out))
                (substitute* "Makefile.am"
                  (("setup.py install --skip-build" m)
-                  (string-append m " --prefix=" out
-                                 " --root=/ --single-version-externally-managed"))))
-             #t))
+                  (string-append
+                   m " --prefix=" out
+                   " --root=/ --single-version-externally-managed"))))))
          (add-after 'build 'build-python-tools
            (lambda* (#:key make-flags #:allow-other-keys)
              ;; Set DETERMINISTIC_BUILD to override the embedded mtime in pyc
@@ -330,27 +302,24 @@ servers from Python programs.")
              ;; Use deterministic hashes for strings, bytes, and datetime
              ;; objects.
              (setenv "PYTHONHASHSEED" "0")
-             (apply invoke "make" "lib389" make-flags)
-             #t))
+             (apply invoke "make" "lib389" make-flags)))
          (add-after 'install 'install-python-tools
            (lambda* (#:key make-flags #:allow-other-keys)
-             (apply invoke "make" "lib389-install" make-flags)
-             #t))
+             (apply invoke "make" "lib389-install" make-flags)))
          (add-after 'install-python-tools 'wrap-python-tools
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out  (assoc-ref outputs "out"))
-                    (path (getenv "PYTHONPATH")))
+                    (pythonpath (getenv "GUIX_PYTHONPATH")))
                (for-each (lambda (file)
                            (wrap-program (string-append out file)
-                             `("PYTHONPATH" ":" prefix (,path))))
+                             `("GUIX_PYTHONPATH" ":" prefix (,pythonpath))))
                          '("/sbin/dsconf"
                            "/sbin/dscreate"
                            "/sbin/dsctl"
                            "/sbin/dsidm"
                            "/bin/ds-logpipe.py"
                            "/bin/ds-replcheck"
-                           "/bin/readnsstate")))
-             #t)))))
+                           "/bin/readnsstate"))))))))
     (inputs
      `(("bdb" ,bdb)
        ("cracklib" ,cracklib)
@@ -365,7 +334,7 @@ servers from Python programs.")
        ("net-snmp" ,net-snmp)
        ("nspr" ,nspr)
        ("nss" ,nss)
-       ("nss:bin" ,nss "bin") ; for certutil
+       ("nss:bin" ,nss "bin")           ; for certutil
        ("openldap" ,openldap)
        ("openssl" ,openssl)             ; #included by net-snmp
        ("pcre" ,pcre)
@@ -431,4 +400,3 @@ Other features include:
 are mapped to a special Python case-insensitive dictionary, tracking the
 changes of the dictionary to modify the entry on the server easily.")
     (license expat)))
-
diff --git a/gnu/packages/orpheus.scm b/gnu/packages/orpheus.scm
index d981be279c..8214311a18 100644
--- a/gnu/packages/orpheus.scm
+++ b/gnu/packages/orpheus.scm
@@ -76,12 +76,9 @@
              ;; To avoid propagating the mpg321 and vorbis-tools inputs, we can
              ;; make the orpheus application execute the needed players from the
              ;; store.
-             (let ((ogg123 (string-append (assoc-ref inputs "vorbis-tools")
-                                          "/bin/ogg123"))
-                   (mpg321 (string-append (assoc-ref inputs "mpg321")
-                                          "/bin/mpg321"))
-                   (which  (string-append (assoc-ref inputs "which")
-                                          "/bin/which")))
+             (let ((ogg123 (search-input-file inputs "/bin/ogg123"))
+                   (mpg321 (search-input-file inputs "/bin/mpg321"))
+                   (which  (search-input-file inputs "/bin/which")))
                (substitute* "src/orpheusconf.cc"
                  (("ogg123") ogg123)
                  (("which")  which)
diff --git a/gnu/packages/package-management.scm b/gnu/packages/package-management.scm
index b068c4842b..1b868944da 100644
--- a/gnu/packages/package-management.scm
+++ b/gnu/packages/package-management.scm
@@ -1390,8 +1390,8 @@ the boot loader configuration.")
         (add-after 'unpack 'fix-tests
           (lambda* (#:key inputs #:allow-other-keys)
             (copy-recursively
-             (string-append (assoc-ref inputs "glibc-utf8-locales")
-                            "/lib/locale/") "/tmp/locale")
+             (search-input-directory inputs "lib/locale")
+             "/tmp/locale")
             (for-each make-file-writable (find-files "/tmp"))
             (substitute* "tests/make-test-runtime.sh"
               (("cp `which.*") "echo guix\n")
diff --git a/gnu/packages/pascal.scm b/gnu/packages/pascal.scm
index 0fdbecf05c..dd9df1c199 100644
--- a/gnu/packages/pascal.scm
+++ b/gnu/packages/pascal.scm
@@ -150,11 +150,9 @@
                (substitute* "fpcsrc/compiler/systems/t_linux.pas"
                  ;; Point to the current glibc dynamic linker.
                  (("/lib/ld-linux.so.2")
-                  (string-append (assoc-ref inputs "libc")
-                                 ,(glibc-dynamic-linker)))
+                  (search-input-file inputs ,(glibc-dynamic-linker)))
                  (("/lib64/ld-linux-x86-64.so.2")
-                  (string-append (assoc-ref inputs "libc")
-                                 ,(glibc-dynamic-linker)))
+                  (search-input-file inputs ,(glibc-dynamic-linker)))
                  ; TODO: /lib/ld-linux-armhf.so.3
                  ; TODO: /lib/ld-linux-aarch64.so.1
                  ; TODO: /lib64/ld64.so.2
diff --git a/gnu/packages/password-utils.scm b/gnu/packages/password-utils.scm
index b969391ba9..504a908100 100644
--- a/gnu/packages/password-utils.scm
+++ b/gnu/packages/password-utils.scm
@@ -460,10 +460,6 @@ random passwords that pass the checks.")
                #t)))
          (add-after 'install 'manpage
            (lambda* (#:key outputs #:allow-other-keys)
-             ;; Without this substitution, it fails with
-             ;; ImportError: No module named 'gpg'
-             (substitute* "Makefile"
-               (("PYTHONPATH=.") ""))
              (invoke "make" "assword.1")
              (install-file
               "assword.1"
@@ -527,11 +523,11 @@ any X11 window.")
              (substitute* "contrib/dmenu/passmenu"
                (("dmenu=dmenu\n")
                 (string-append "dmenu="
-                               (assoc-ref inputs "dmenu") "/bin/dmenu\n"))
+                               (search-input-file inputs "/bin/dmenu")
+                               "\n"))
                (("xdotool=\"xdotool")
                 (string-append "xdotool=\""
-                               (assoc-ref inputs "xdotool") "/bin/xdotool")))
-             #t))
+                               (search-input-file inputs "/bin/xdotool"))))))
          (add-after 'install 'install-passmenu
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
diff --git a/gnu/packages/patches/atlas-gfortran-compat.patch b/gnu/packages/patches/atlas-gfortran-compat.patch
new file mode 100644
index 0000000000..5b46f5a64d
--- /dev/null
+++ b/gnu/packages/patches/atlas-gfortran-compat.patch
@@ -0,0 +1,37 @@
+Fix build with gfortran 10.
+
+Taken from Debian:
+https://salsa.debian.org/science-team/atlas/-/blob/master/debian/patches/gfortran-10.patch
+
+--- a/interfaces/blas/C/testing/c_dblat1.f
++++ b/interfaces/blas/C/testing/c_dblat1.f
+@@ -247,11 +247,11 @@
+             IF (ICASE.EQ.7) THEN
+ *              .. DNRM2TEST ..
+                STEMP(1) = DTRUE1(NP1)
+-               CALL STEST1(DNRM2TEST(N,SX,INCX),STEMP,STEMP,SFAC)
++               CALL STEST1(DNRM2TEST(N,SX,INCX),STEMP(1),STEMP,SFAC)
+             ELSE IF (ICASE.EQ.8) THEN
+ *              .. DASUMTEST ..
+                STEMP(1) = DTRUE3(NP1)
+-               CALL STEST1(DASUMTEST(N,SX,INCX),STEMP,STEMP,SFAC)
++               CALL STEST1(DASUMTEST(N,SX,INCX),STEMP(1),STEMP,SFAC)
+             ELSE IF (ICASE.EQ.9) THEN
+ *              .. DSCALTEST ..
+                CALL DSCALTEST(N,SA((INCX-1)*5+NP1),SX,INCX)
+--- a/interfaces/blas/C/testing/c_sblat1.f
++++ b/interfaces/blas/C/testing/c_sblat1.f
+@@ -247,11 +247,11 @@
+             IF (ICASE.EQ.7) THEN
+ *              .. SNRM2TEST ..
+                STEMP(1) = DTRUE1(NP1)
+-               CALL STEST1(SNRM2TEST(N,SX,INCX),STEMP,STEMP,SFAC)
++               CALL STEST1(SNRM2TEST(N,SX,INCX),STEMP(1),STEMP,SFAC)
+             ELSE IF (ICASE.EQ.8) THEN
+ *              .. SASUMTEST ..
+                STEMP(1) = DTRUE3(NP1)
+-               CALL STEST1(SASUMTEST(N,SX,INCX),STEMP,STEMP,SFAC)
++               CALL STEST1(SASUMTEST(N,SX,INCX),STEMP(1),STEMP,SFAC)
+             ELSE IF (ICASE.EQ.9) THEN
+ *              .. SSCALTEST ..
+                CALL SSCALTEST(N,SA((INCX-1)*5+NP1),SX,INCX)
diff --git a/gnu/packages/patches/bdb-5.3-atomics-on-gcc-9.patch b/gnu/packages/patches/bdb-5.3-atomics-on-gcc-9.patch
new file mode 100644
index 0000000000..56d404da15
--- /dev/null
+++ b/gnu/packages/patches/bdb-5.3-atomics-on-gcc-9.patch
@@ -0,0 +1,22 @@
+Patch borrowed from Arch Linux. Allows compiling bdb 5.3 and earlier with GCC newer than 7.
+
+--- src/dbinc/atomic.h	2013-03-12 14:07:22.000000000 -0400
++++ src/dbinc/atomic.h.change	2013-03-12 14:06:35.000000000 -0400
+@@ -144,7 +144,7 @@
+ #define	atomic_inc(env, p)	__atomic_inc(p)
+ #define	atomic_dec(env, p)	__atomic_dec(p)
+ #define	atomic_compare_exchange(env, p, o, n)	\
+-	__atomic_compare_exchange((p), (o), (n))
++	__atomic_compare_exchange_db((p), (o), (n))
+ static inline int __atomic_inc(db_atomic_t *p)
+ {
+ 	int	temp;
+@@ -176,7 +176,7 @@
+  * http://gcc.gnu.org/onlinedocs/gcc-4.1.0/gcc/Atomic-Builtins.html
+  * which configure could be changed to use.
+  */
+-static inline int __atomic_compare_exchange(
++static inline int __atomic_compare_exchange_db(
+ 	db_atomic_t *p, atomic_value_t oldval, atomic_value_t newval)
+ {
+ 	atomic_value_t was;
diff --git a/gnu/packages/patches/biber-fix-encoding-write.patch b/gnu/packages/patches/biber-fix-encoding-write.patch
deleted file mode 100644
index 56cd11212e..0000000000
--- a/gnu/packages/patches/biber-fix-encoding-write.patch
+++ /dev/null
@@ -1,31 +0,0 @@
-From 2a9b15aefb842a734637f3d230936ea1b7c60096 Mon Sep 17 00:00:00 2001
-From: Philip Kime <Philip@kime.org.uk>
-Date: Thu, 8 Nov 2018 22:02:09 +0100
-Subject: [PATCH] Fix to address #239
-
----
- lib/Biber.pm | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/lib/Biber.pm b/lib/Biber.pm
-index 8b1f80a5..d97fca29 100644
---- a/lib/Biber.pm
-+++ b/lib/Biber.pm
-@@ -311,6 +311,8 @@ sub parse_ctrlfile {
-     unless (eval {$checkbuf = File::Slurper::read_text($ctrl_file_path, 'latin1')}) {
-       biber_error("$ctrl_file_path is not UTF-8 or even latin1, how horrible.");
-     }
-+    # Write ctrl file as UTF-8
-+    File::Slurper::write_text($ctrl_file_path, NFC($checkbuf));# Unicode NFC boundary
-   }
- 
-   $checkbuf = NFD($checkbuf);# Unicode NFD boundary
-@@ -319,8 +321,6 @@ sub parse_ctrlfile {
-     unlink($output) unless $output eq '-';# ignore deletion of STDOUT marker
-     biber_error("$ctrl_file_path is malformed, last biblatex run probably failed. Deleted $output");
-   }
--  # Write ctrl file as UTF-8
--  File::Slurper::write_text($ctrl_file_path, NFC($checkbuf));# Unicode NFC boundary
- 
-   # Validate if asked to
-   if (Biber::Config->getoption('validate_control')) {
diff --git a/gnu/packages/patches/biber-sortinithash.patch b/gnu/packages/patches/biber-sortinithash.patch
deleted file mode 100644
index 5a626705e6..0000000000
--- a/gnu/packages/patches/biber-sortinithash.patch
+++ /dev/null
@@ -1,1666 +0,0 @@
-This is a backport of this upstream commit to Biber 2.12:
-
-  From 6b61b4c13778cf638f82569ab9e413f09f111ba5 Mon Sep 17 00:00:00 2001
-  From: Philip Kime <Philip@kime.org.uk>
-  Date: Sat, 12 Jan 2019 17:19:51 +0100
-  Subject: [PATCH] Updated tests after U::C upgrade changed sortinit hashes
-
-It addresses test failures found with recent versions of the
-Biber dependencies.
-
-diff --git a/t/annotations.t b/t/annotations.t
-index b4f641e..c6f86c7 100644
---- a/t/annotations.t
-+++ b/t/annotations.t
-@@ -73,7 +73,7 @@ my $ann1 = q|    \entry{ann1}{misc}{}
-       \strng{authorfullhash}{90ae96c82de92e36949bc64254bbde0c}
-       \field{extraname}{1}
-       \field{sortinit}{L}
--      \field{sortinithash}{2c7981aaabc885868aba60f0c09ee20f}
-+      \field{sortinithash}{dad3efd0836470093a7b4a7bb756eb8c}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-       \field{title}{The Title}
-@@ -116,7 +116,7 @@ my $ann2 = q|    \entry{ann2}{misc}{}
-       \strng{authorfullhash}{90ae96c82de92e36949bc64254bbde0c}
-       \field{extraname}{2}
-       \field{sortinit}{L}
--      \field{sortinithash}{2c7981aaabc885868aba60f0c09ee20f}
-+      \field{sortinithash}{dad3efd0836470093a7b4a7bb756eb8c}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-       \field{title}{The Title}
-diff --git a/t/basic-misc.t b/t/basic-misc.t
-index d4664b1..a9168cc 100644
---- a/t/basic-misc.t
-+++ b/t/basic-misc.t
-@@ -97,7 +97,7 @@ my $u1 = q|    \entry{u1}{misc}{}
-       \strng{authorfullhash}{b78abdc838d79b6576f2ed0021642766}
-       \field{labelalpha}{AAA\textbf{+}00}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \true{singletitle}
-       \true{uniquework}
-       \field{labelnamesource}{author}
-@@ -231,7 +231,7 @@ my $murray1 = q|    \entry{murray}{article}{}
-       \strng{authorfullhash}{1572cc3fd324f560e5e71d041a6bd764}
-       \field{labelalpha}{Hos\textbf{+}98}
-       \field{sortinit}{H}
--      \field{sortinithash}{5f15a7bc777ad49ff15aa4d2831b1681}
-+      \field{sortinithash}{6db6145dae8dc9e1271a8d556090b50a}
-       \true{singletitle}
-       \true{uniquework}
-       \field{labelnamesource}{author}
-@@ -348,7 +348,7 @@ my $murray2 = q|    \entry{murray}{article}{}
-       \strng{authorfullhash}{1572cc3fd324f560e5e71d041a6bd764}
-       \field{labelalpha}{Hos98}
-       \field{sortinit}{H}
--      \field{sortinithash}{5f15a7bc777ad49ff15aa4d2831b1681}
-+      \field{sortinithash}{6db6145dae8dc9e1271a8d556090b50a}
-       \true{singletitle}
-       \true{uniquework}
-       \field{labelnamesource}{author}
-@@ -389,7 +389,7 @@ my $t1 = q+    \entry{t1}{misc}{}
-       \field{extraname}{1}
-       \field{labelalpha}{Bro92}
-       \field{sortinit}{B}
--      \field{sortinithash}{276475738cc058478c1677046f857703}
-+      \field{sortinithash}{8de16967003c7207dae369d874f1456e}
-       \true{uniquework}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -419,7 +419,7 @@ my $t2 = q|    \entry{t2}{misc}{}
-       \field{extraname}{2}
-       \field{labelalpha}{Bro94}
-       \field{sortinit}{B}
--      \field{sortinithash}{276475738cc058478c1677046f857703}
-+      \field{sortinithash}{8de16967003c7207dae369d874f1456e}
-       \true{uniquework}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -452,7 +452,7 @@ my $anon1 = q|    \entry{anon1}{unpublished}{}
-       \strng{shortauthorfullhash}{9873a6cc65c553faa2b21aaad626fe4b}
-       \field{labelalpha}{XAn35}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \true{singletitle}
-       \true{uniquework}
-       \field{labelnamesource}{shortauthor}
-@@ -491,7 +491,7 @@ my $anon2 = q|    \entry{anon2}{unpublished}{}
-       \strng{shortauthorfullhash}{f64c29e89ea49402b997956610b58ef6}
-       \field{labelalpha}{YAn39}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \true{singletitle}
-       \true{uniquework}
-       \field{labelnamesource}{shortauthor}
-@@ -526,7 +526,7 @@ my $url1 = q|    \entry{url1}{misc}{}
-       \field{extraname}{4}
-       \field{labelalpha}{Ali05}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \field{extraalpha}{4}
-       \field{labelnamesource}{author}
-       \field{year}{2005}
-@@ -710,7 +710,7 @@ my $isbn1 = q|    \entry{isbn1}{misc}{}
-       \field{extraname}{1}
-       \field{labelalpha}{Flu}
-       \field{sortinit}{F}
--      \field{sortinithash}{669c706c6f1fbf3b5a83d26f1d9e9e72}
-+      \field{sortinithash}{fb0c0faa89eb6abae8213bf60e6799ea}
-       \field{extraalpha}{1}
-       \field{labelnamesource}{author}
-       \field{isbn}{978-0-8165-2066-4}
-@@ -735,7 +735,7 @@ my $isbn2 = q|    \entry{isbn2}{misc}{}
-       \field{extraname}{2}
-       \field{labelalpha}{Flu}
-       \field{sortinit}{F}
--      \field{sortinithash}{669c706c6f1fbf3b5a83d26f1d9e9e72}
-+      \field{sortinithash}{fb0c0faa89eb6abae8213bf60e6799ea}
-       \field{extraalpha}{2}
-       \field{labelnamesource}{author}
-       \field{isbn}{978-0-8165-2066-4}
-@@ -778,7 +778,7 @@ my $clone1 = q|    \entry{snk1}{book}{}
-       \field{extraname}{2}
-       \field{labelalpha}{vDoe}
-       \field{sortinit}{v}
--      \field{sortinithash}{75dd7385c90b2252c3ae853a80ca853b}
-+      \field{sortinithash}{02432525618c08e2b03cac47c19764af}
-       \field{extraalpha}{2}
-       \field{labelnamesource}{author}
-     \endentry
-@@ -807,7 +807,7 @@ my $clone2 = q|    \entry{clone-snk1}{book}{}
-       \field{extraname}{1}
-       \field{labelalpha}{vDoe}
-       \field{sortinit}{v}
--      \field{sortinithash}{75dd7385c90b2252c3ae853a80ca853b}
-+      \field{sortinithash}{02432525618c08e2b03cac47c19764af}
-       \field{extraalpha}{1}
-       \field{labelnamesource}{author}
-       \field{addendum}{add}
-@@ -839,7 +839,7 @@ my $ent1 = q|    \entry{ent1}{book}{}
-       \strng{authorfullhash}{b2536a425d549b46de5f21c4d468050a}
-       \field{labelalpha}{SdB}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-     \endentry
-@@ -862,7 +862,7 @@ my $verb1 = q|    \entry{verb1}{book}{}
-       \strng{authorfullhash}{cac5a25f503e71f5ef28f474e14007b6}
-       \field{labelalpha}{All}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-       \verb{verba}
-diff --git a/t/biblatexml.t b/t/biblatexml.t
-index ad9ad25..0959bfa 100644
---- a/t/biblatexml.t
-+++ b/t/biblatexml.t
-@@ -111,7 +111,7 @@ my $l1 = q|    \entry{bltx1}{misc}{useprefix=false}
-       \strng{translatornamehash}{b44eba830fe9817fbe8e53c82f1cbe04}
-       \strng{translatorfullhash}{b44eba830fe9817fbe8e53c82f1cbe04}
-       \field{sortinit}{v}
--      \field{sortinithash}{75dd7385c90b2252c3ae853a80ca853b}
-+      \field{sortinithash}{02432525618c08e2b03cac47c19764af}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -158,7 +158,7 @@ my $l1 = q|    \entry{bltx1}{misc}{useprefix=false}
- 
- my $l2 = q|    \entry{loopkey:a}{book}{}
-       \field{sortinit}{0}
--      \field{sortinithash}{168ad0c7c5ed09f1d28c6675717b5b03}
-+      \field{sortinithash}{bcf7a1f4afb88b7299f988caccb80d1c}
-     \endentry
- |;
- 
-diff --git a/t/crossrefs.t b/t/crossrefs.t
-index 915b52b..b6191c6 100644
---- a/t/crossrefs.t
-+++ b/t/crossrefs.t
-@@ -82,7 +82,7 @@ my $cr1 = q|    \entry{cr1}{inbook}{}
-       \strng{editornamehash}{c129df5593fdaa7475548811bfbb227d}
-       \strng{editorfullhash}{c129df5593fdaa7475548811bfbb227d}
-       \field{sortinit}{G}
--      \field{sortinithash}{5e8d2bf9d38de41b1528bd307546008f}
-+      \field{sortinithash}{62eb2aa29549e4fdbd3cb154ec5711cb}
-       \true{singletitle}
-       \true{uniquetitle}
-       \true{uniquework}
-@@ -131,7 +131,7 @@ my $cr2 = q|    \entry{cr2}{inbook}{}
-       \strng{editornamehash}{c129df5593fdaa7475548811bfbb227d}
-       \strng{editorfullhash}{c129df5593fdaa7475548811bfbb227d}
-       \field{sortinit}{F}
--      \field{sortinithash}{669c706c6f1fbf3b5a83d26f1d9e9e72}
-+      \field{sortinithash}{fb0c0faa89eb6abae8213bf60e6799ea}
-       \true{singletitle}
-       \true{uniquetitle}
-       \true{uniquework}
-@@ -165,7 +165,7 @@ my $cr_m = q|    \entry{cr_m}{book}{}
-       \strng{editornamehash}{c129df5593fdaa7475548811bfbb227d}
-       \strng{editorfullhash}{c129df5593fdaa7475548811bfbb227d}
-       \field{sortinit}{G}
--      \field{sortinithash}{5e8d2bf9d38de41b1528bd307546008f}
-+      \field{sortinithash}{62eb2aa29549e4fdbd3cb154ec5711cb}
-       \true{crossrefsource}
-       \true{uniquetitle}
-       \field{labeltitlesource}{title}
-@@ -203,7 +203,7 @@ my $cr3 = q|    \entry{cr3}{inbook}{}
-       \strng{editornamehash}{a1f5c22413396d599ec766725b226735}
-       \strng{editorfullhash}{a1f5c22413396d599ec766725b226735}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \true{singletitle}
-       \true{uniquetitle}
-       \true{uniquework}
-@@ -248,7 +248,7 @@ my $cr4 = q|    \entry{cr4}{inbook}{}
-       \strng{editornamehash}{6ea89bd4958743a20b70fe17647d6af5}
-       \strng{editorfullhash}{6ea89bd4958743a20b70fe17647d6af5}
-       \field{sortinit}{M}
--      \field{sortinithash}{cfd219b90152c06204fab207bc6c7cab}
-+      \field{sortinithash}{2e5c2f51f7fa2d957f3206819bf86dc3}
-       \true{singletitle}
-       \true{uniquetitle}
-       \true{uniquework}
-@@ -279,7 +279,7 @@ my $crt = q|    \entry{crt}{book}{}
-       \strng{editornamehash}{a1f5c22413396d599ec766725b226735}
-       \strng{editorfullhash}{a1f5c22413396d599ec766725b226735}
-       \field{sortinit}{B}
--      \field{sortinithash}{276475738cc058478c1677046f857703}
-+      \field{sortinithash}{8de16967003c7207dae369d874f1456e}
-       \true{uniquetitle}
-       \field{labeltitlesource}{title}
-       \field{title}{Beasts of the Burbling Burns}
-@@ -315,7 +315,7 @@ my $cr6 = q|    \entry{cr6}{inproceedings}{}
-       \strng{editorfullhash}{344a7f427fb765610ef96eb7bce95257}
-       \field{extraname}{2}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \true{uniquetitle}
-       \true{uniquework}
-       \field{labelnamesource}{author}
-@@ -366,7 +366,7 @@ my $cr7 = q|    \entry{cr7}{inbook}{}
-       \strng{bookauthorfullhash}{91a1dd4aeed3c4ec29ca74c4e778be5f}
-       \field{extraname}{1}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \true{uniquetitle}
-       \true{uniquework}
-       \field{labelnamesource}{author}
-@@ -401,7 +401,7 @@ my $cr8 = q|    \entry{cr8}{incollection}{}
-       \strng{authorfullhash}{3d449e56eb3ca1ae80dc99a18d689795}
-       \field{extraname}{4}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \true{singletitle}
-       \true{uniquetitle}
-       \true{uniquework}
-@@ -431,7 +431,7 @@ my $xr1 = q|    \entry{xr1}{inbook}{}
-       \strng{authornamehash}{e0ecc4fc668ee499d1afba44e1ac064d}
-       \strng{authorfullhash}{e0ecc4fc668ee499d1afba44e1ac064d}
-       \field{sortinit}{Z}
--      \field{sortinithash}{156173bd08b075d7295bc3e0f4735a04}
-+      \field{sortinithash}{8f7b480688e809b50b6f6577b16f3db5}
-       \true{singletitle}
-       \true{uniquetitle}
-       \true{uniquework}
-@@ -460,7 +460,7 @@ my $xr2 = q|    \entry{xr2}{inbook}{}
-       \strng{authornamehash}{6afa09374ecfd6b394ce714d2d9709c7}
-       \strng{authorfullhash}{6afa09374ecfd6b394ce714d2d9709c7}
-       \field{sortinit}{I}
--      \field{sortinithash}{320bc8fe8101b9376f9f21cd507de0e8}
-+      \field{sortinithash}{9417e9a1288a9371e2691d999083ed39}
-       \true{singletitle}
-       \true{uniquetitle}
-       \true{uniquework}
-@@ -491,7 +491,7 @@ my $xrm = q|    \entry{xrm}{book}{}
-       \strng{editornamehash}{809950f9b59ae207092b909a19dcb27b}
-       \strng{editorfullhash}{809950f9b59ae207092b909a19dcb27b}
-       \field{sortinit}{C}
--      \field{sortinithash}{963e9d84a3da2344e8833203de5aed05}
-+      \field{sortinithash}{4c244ceae61406cdc0cc2ce1cb1ff703}
-       \true{xrefsource}
-       \true{uniquetitle}
-       \field{labeltitlesource}{title}
-@@ -516,7 +516,7 @@ my $xr3 = q|    \entry{xr3}{inbook}{}
-       \strng{authornamehash}{9788055665b9bb4b37c776c3f6b74f16}
-       \strng{authorfullhash}{9788055665b9bb4b37c776c3f6b74f16}
-       \field{sortinit}{N}
--      \field{sortinithash}{f7242c3ed3dc50029fca1be76c497c7c}
-+      \field{sortinithash}{98cf339a479c0454fe09153a08675a15}
-       \true{singletitle}
-       \true{uniquetitle}
-       \true{uniquework}
-@@ -546,7 +546,7 @@ my $xrt = q|    \entry{xrt}{book}{}
-       \strng{editornamehash}{bf7d6b02f3e073913e5bfe5059508dd5}
-       \strng{editorfullhash}{bf7d6b02f3e073913e5bfe5059508dd5}
-       \field{sortinit}{K}
--      \field{sortinithash}{9fd838a31ba64d981e8f44562bd33f89}
-+      \field{sortinithash}{d3edc18d54b9438a72c24c925bfb38f4}
-       \true{uniquetitle}
-       \field{labeltitlesource}{title}
-       \field{title}{Kings, Cork and Calculation}
-@@ -572,7 +572,7 @@ my $xr4 = q|    \entry{xr4}{inbook}{}
-       \strng{authorfullhash}{7804ffef086c0c4686c235807f5cb502}
-       \field{extraname}{1}
-       \field{sortinit}{M}
--      \field{sortinithash}{cfd219b90152c06204fab207bc6c7cab}
-+      \field{sortinithash}{2e5c2f51f7fa2d957f3206819bf86dc3}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-       \field{origyear}{1933}
-@@ -600,7 +600,7 @@ my $mxr = q|    \entry{mxr}{inbook}{}
-       \strng{authorfullhash}{7804ffef086c0c4686c235807f5cb502}
-       \field{extraname}{2}
-       \field{sortinit}{M}
--      \field{sortinithash}{cfd219b90152c06204fab207bc6c7cab}
-+      \field{sortinithash}{2e5c2f51f7fa2d957f3206819bf86dc3}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-       \field{origyear}{1933}
-@@ -625,7 +625,7 @@ my $mcr = q|    \entry{mcr}{inbook}{}
-       \strng{authorfullhash}{7804ffef086c0c4686c235807f5cb502}
-       \field{extraname}{3}
-       \field{sortinit}{M}
--      \field{sortinithash}{cfd219b90152c06204fab207bc6c7cab}
-+      \field{sortinithash}{2e5c2f51f7fa2d957f3206819bf86dc3}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-       \field{origyear}{1933}
-@@ -660,7 +660,7 @@ my $ccr1 = q|    \entry{ccr2}{book}{}
-       \strng{editorfullhash}{cfee758a1c82df2e26af1985e061bb0a}
-       \field{extraname}{1}
-       \field{sortinit}{V}
--      \field{sortinithash}{75dd7385c90b2252c3ae853a80ca853b}
-+      \field{sortinithash}{02432525618c08e2b03cac47c19764af}
-       \true{uniquetitle}
-       \true{uniquework}
-       \field{labelnamesource}{author}
-@@ -694,7 +694,7 @@ my $ccr2 = q|    \entry{ccr3}{inbook}{}
-       \strng{editornamehash}{cfee758a1c82df2e26af1985e061bb0a}
-       \strng{editorfullhash}{cfee758a1c82df2e26af1985e061bb0a}
-       \field{sortinit}{P}
--      \field{sortinithash}{8d51b3d5b78d75b54308d706b9bbe285}
-+      \field{sortinithash}{bb5b15f2db90f7aef79bb9e83defefcb}
-       \true{uniquetitle}
-       \field{labeltitlesource}{title}
-       \field{booktitle}{Misc etc.}
-@@ -726,7 +726,7 @@ my $ccr3 = q|    \entry{ccr4}{inbook}{}
- 
- my $s1 = q|    \entry{s1}{inbook}{}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \true{uniquetitle}
-       \field{labeltitlesource}{title}
-       \strng{crossref}{s2}
-@@ -760,7 +760,7 @@ my $xc2 = q|    \entry{xc2}{inbook}{}
-       \strng{bookauthorfullhash}{1a0f7d518cccdad859a74412ef956474}
-       \field{extraname}{2}
-       \field{sortinit}{C}
--      \field{sortinithash}{963e9d84a3da2344e8833203de5aed05}
-+      \field{sortinithash}{4c244ceae61406cdc0cc2ce1cb1ff703}
-       \true{xrefsource}
-       \field{labelnamesource}{author}
-       \field{booktitle}{Title}
-@@ -769,7 +769,7 @@ my $xc2 = q|    \entry{xc2}{inbook}{}
- 
- my $b1 = q|    \entry{b1}{inbook}{}
-       \field{sortinit}{2}
--      \field{sortinithash}{cbff857e587bcb4635511624d773949e}
-+      \field{sortinithash}{ed39bb39cf854d5250e95b1c1f94f4ed}
-       \strng{crossref}{b2}
-       \field{day}{3}
-       \field{month}{3}
-@@ -803,7 +803,7 @@ my $sup1 = q|    \entry{sup1}{mvbook}{}
-       \strng{authorfullhash}{556c8dba145b472e6a8598d506f7cbe2}
-       \field{extraname}{3}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \true{crossrefsource}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-@@ -828,7 +828,7 @@ my $sup2 = q|    \entry{sup2}{book}{}
-       \strng{authorfullhash}{556c8dba145b472e6a8598d506f7cbe2}
-       \field{extraname}{1}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-diff --git a/t/datalists.t b/t/datalists.t
-index 3081cc4..4855e3d 100644
---- a/t/datalists.t
-+++ b/t/datalists.t
-@@ -187,7 +187,7 @@ my $K11 = q|    \entry{K11}{book}{}
-       \strng{authornamehash}{4edc280a0ef229f9c061e3b121b17482}
-       \strng{authorfullhash}{4edc280a0ef229f9c061e3b121b17482}
-       \field{sortinit}{a}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -219,7 +219,7 @@ my $K12 = q|    \entry{K12}{book}{}
-       \strng{authornamehash}{a846a485fc9cbb59b0ebeedd6ac637e4}
-       \strng{authorfullhash}{a846a485fc9cbb59b0ebeedd6ac637e4}
-       \field{sortinit}{Z}
--      \field{sortinithash}{156173bd08b075d7295bc3e0f4735a04}
-+      \field{sortinithash}{8f7b480688e809b50b6f6577b16f3db5}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-diff --git a/t/dateformats.t b/t/dateformats.t
-index 6beb567..0d5072a 100644
---- a/t/dateformats.t
-+++ b/t/dateformats.t
-@@ -88,7 +88,7 @@ my $l13c = q|    \entry{L13}{book}{}
-       \strng{authorfullhash}{8c77336299b25bdada7bf8038f46722f}
-       \field{extraname}{3}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -126,7 +126,7 @@ my $l14 = q|    \entry{L14}{book}{}
-       \strng{authorfullhash}{8c77336299b25bdada7bf8038f46722f}
-       \field{extraname}{4}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extradate}{3}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-@@ -168,7 +168,7 @@ my $l15 = q|    \entry{L15}{book}{}
-       \strng{authorfullhash}{8c77336299b25bdada7bf8038f46722f}
-       \field{extraname}{12}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extradate}{4}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -201,7 +201,7 @@ my $l16 = q|    \entry{L16}{proceedings}{}
-       \strng{editorfullhash}{8c77336299b25bdada7bf8038f46722f}
-       \field{extraname}{13}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extradate}{7}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{event}
-@@ -240,7 +240,7 @@ my $l17 = q|    \entry{L17}{proceedings}{}
-       \strng{editorfullhash}{8c77336299b25bdada7bf8038f46722f}
-       \field{extraname}{5}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extradate}{4}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-@@ -299,7 +299,7 @@ my $l17c = q|    \entry{L17}{proceedings}{}
-       \strng{editorfullhash}{8c77336299b25bdada7bf8038f46722f}
-       \field{extraname}{5}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{orig}
-       \field{labelnamesource}{editor}
-@@ -357,7 +357,7 @@ my $l17e = q|    \entry{L17}{proceedings}{}
-       \strng{editorfullhash}{8c77336299b25bdada7bf8038f46722f}
-       \field{extraname}{5}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{event}
-       \field{labelnamesource}{editor}
-@@ -479,7 +479,7 @@ my $era1 = q|    \entry{era1}{article}{}
-       \strng{authorfullhash}{556c8dba145b472e6a8598d506f7cbe2}
-       \field{extraname}{9}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -512,7 +512,7 @@ my $era2 = q|    \entry{era2}{inproceedings}{}
-       \strng{authorfullhash}{556c8dba145b472e6a8598d506f7cbe2}
-       \field{extraname}{10}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -546,7 +546,7 @@ my $era3 = q|    \entry{era3}{inproceedings}{}
-       \strng{authorfullhash}{556c8dba145b472e6a8598d506f7cbe2}
-       \field{extraname}{11}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -580,7 +580,7 @@ my $era4 = q|    \entry{era4}{inproceedings}{}
-       \strng{authorfullhash}{556c8dba145b472e6a8598d506f7cbe2}
-       \field{extraname}{6}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -622,7 +622,7 @@ my $time1 = q|    \entry{time1}{article}{}
-       \strng{authorfullhash}{556c8dba145b472e6a8598d506f7cbe2}
-       \field{extraname}{2}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -671,7 +671,7 @@ my $range1 = q|    \entry{range1}{inproceedings}{}
-       \strng{authorfullhash}{556c8dba145b472e6a8598d506f7cbe2}
-       \field{extraname}{7}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradate}{1}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-@@ -712,7 +712,7 @@ my $range2 = q|    \entry{range2}{inproceedings}{}
-       \strng{authorfullhash}{556c8dba145b472e6a8598d506f7cbe2}
-       \field{extraname}{8}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradate}{2}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-@@ -753,7 +753,7 @@ my $season1 = q|    \entry{season1}{inproceedings}{}
-       \strng{authorfullhash}{556c8dba145b472e6a8598d506f7cbe2}
-       \field{extraname}{1}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -785,7 +785,7 @@ my $unspec1 = q|    \entry{unspec1}{inproceedings}{}
-       \strng{authorfullhash}{556c8dba145b472e6a8598d506f7cbe2}
-       \field{extraname}{4}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -838,7 +838,7 @@ my $unspec2 = q|    \entry{unspec2}{article}{}
-       \strng{authorfullhash}{556c8dba145b472e6a8598d506f7cbe2}
-       \field{extraname}{3}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-diff --git a/t/encoding.t b/t/encoding.t
-index a150b4f..36d9955 100644
---- a/t/encoding.t
-+++ b/t/encoding.t
-@@ -52,7 +52,7 @@ my $encode1 = q|    \entry{testŠ}{book}{}
-       \strng{authorfullhash}{06a47edae2e847800cfd78323a0e6be8}
-       \field{labelalpha}{Enc99}
-       \field{sortinit}{E}
--      \field{sortinithash}{f615fb9c6fba11c6f962fb3fd599810e}
-+      \field{sortinithash}{c554bd1a0b76ea92b9f105fe36d9c7b0}
-       \field{labeldatesource}{year}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-@@ -82,7 +82,7 @@ my $encode2 = q|    \entry{test1}{book}{}
-       \strng{authorfullhash}{06a47edae2e847800cfd78323a0e6be8}
-       \field{labelalpha}{Enc99}
-       \field{sortinit}{E}
--      \field{sortinithash}{f615fb9c6fba11c6f962fb3fd599810e}
-+      \field{sortinithash}{c554bd1a0b76ea92b9f105fe36d9c7b0}
-       \field{labeldatesource}{year}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-@@ -112,7 +112,7 @@ my $encode3 = q|    \entry{test1}{book}{}
-       \strng{authorfullhash}{06a47edae2e847800cfd78323a0e6be8}
-       \field{labelalpha}{Enc99}
-       \field{sortinit}{E}
--      \field{sortinithash}{f615fb9c6fba11c6f962fb3fd599810e}
-+      \field{sortinithash}{c554bd1a0b76ea92b9f105fe36d9c7b0}
-       \field{labeldatesource}{year}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-@@ -142,7 +142,7 @@ my $encode5 = q|    \entry{test}{book}{}
-       \strng{authorfullhash}{06a47edae2e847800cfd78323a0e6be8}
-       \field{labelalpha}{Enc99}
-       \field{sortinit}{E}
--      \field{sortinithash}{f615fb9c6fba11c6f962fb3fd599810e}
-+      \field{sortinithash}{c554bd1a0b76ea92b9f105fe36d9c7b0}
-       \field{labeldatesource}{year}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-@@ -172,7 +172,7 @@ my $encode6 = q|    \entry{test}{book}{}
-       \strng{authorfullhash}{06a47edae2e847800cfd78323a0e6be8}
-       \field{labelalpha}{Enc99}
-       \field{sortinit}{E}
--      \field{sortinithash}{f615fb9c6fba11c6f962fb3fd599810e}
-+      \field{sortinithash}{c554bd1a0b76ea92b9f105fe36d9c7b0}
-       \field{labeldatesource}{year}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-@@ -202,7 +202,7 @@ my $encode7 = q|    \entry{test}{book}{}
-       \strng{authorfullhash}{06a47edae2e847800cfd78323a0e6be8}
-       \field{labelalpha}{Enc99}
-       \field{sortinit}{E}
--      \field{sortinithash}{f615fb9c6fba11c6f962fb3fd599810e}
-+      \field{sortinithash}{c554bd1a0b76ea92b9f105fe36d9c7b0}
-       \field{labeldatesource}{year}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-diff --git a/t/names.t b/t/names.t
-index 7228042..b73f2ed 100644
---- a/t/names.t
-+++ b/t/names.t
-@@ -188,7 +188,7 @@ my $l1 = q|    \entry{L1}{book}{}
-       \strng{authornamehash}{72287a68c1714cb1b9f4ab9e03a88b96}
-       \strng{authorfullhash}{72287a68c1714cb1b9f4ab9e03a88b96}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -208,7 +208,7 @@ my $l2 = q|    \entry{L2}{book}{}
-       \strng{authornamehash}{2098d59d0f19a2e003ee06c1aa750d57}
-       \strng{authorfullhash}{2098d59d0f19a2e003ee06c1aa750d57}
-       \field{sortinit}{B}
--      \field{sortinithash}{276475738cc058478c1677046f857703}
-+      \field{sortinithash}{8de16967003c7207dae369d874f1456e}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -228,7 +228,7 @@ my $l3 = q|    \entry{L3}{book}{}
-       \strng{authornamehash}{c8b06fe88bde128b25eb0b3b1cc5837c}
-       \strng{authorfullhash}{c8b06fe88bde128b25eb0b3b1cc5837c}
-       \field{sortinit}{C}
--      \field{sortinithash}{963e9d84a3da2344e8833203de5aed05}
-+      \field{sortinithash}{4c244ceae61406cdc0cc2ce1cb1ff703}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -248,7 +248,7 @@ my $l4 = q|    \entry{L4}{book}{}
-       \strng{authornamehash}{5ec958b850c0c2de7de7c42c84b9c419}
-       \strng{authorfullhash}{5ec958b850c0c2de7de7c42c84b9c419}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -270,7 +270,7 @@ my $l5 = q|    \entry{L5}{book}{}
-       \strng{authornamehash}{c6b9d281cc1ff3f35570f76f463d4244}
-       \strng{authorfullhash}{c6b9d281cc1ff3f35570f76f463d4244}
-       \field{sortinit}{v}
--      \field{sortinithash}{75dd7385c90b2252c3ae853a80ca853b}
-+      \field{sortinithash}{02432525618c08e2b03cac47c19764af}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -292,7 +292,7 @@ my $l6 = q|    \entry{L6}{book}{}
-       \strng{authornamehash}{5fd24d3d1608a310ec205a6b201a5495}
-       \strng{authorfullhash}{5fd24d3d1608a310ec205a6b201a5495}
-       \field{sortinit}{v}
--      \field{sortinithash}{75dd7385c90b2252c3ae853a80ca853b}
-+      \field{sortinithash}{02432525618c08e2b03cac47c19764af}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -314,7 +314,7 @@ my $l7 = q|    \entry{L7}{book}{}
-       \strng{authornamehash}{98edb0b90251df22b74328d9227eceb7}
-       \strng{authorfullhash}{98edb0b90251df22b74328d9227eceb7}
-       \field{sortinit}{v}
--      \field{sortinithash}{75dd7385c90b2252c3ae853a80ca853b}
-+      \field{sortinithash}{02432525618c08e2b03cac47c19764af}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -336,7 +336,7 @@ my $l8 = q|    \entry{L8}{book}{}
-       \strng{authornamehash}{1211dc8dbbc191cbcab4da3c3c1fc48a}
-       \strng{authorfullhash}{1211dc8dbbc191cbcab4da3c3c1fc48a}
-       \field{sortinit}{v}
--      \field{sortinithash}{75dd7385c90b2252c3ae853a80ca853b}
-+      \field{sortinithash}{02432525618c08e2b03cac47c19764af}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -356,7 +356,7 @@ my $l9 = q|    \entry{L9}{book}{}
-       \strng{authornamehash}{bae61a889ab149a6deafe45333204cf0}
-       \strng{authorfullhash}{bae61a889ab149a6deafe45333204cf0}
-       \field{sortinit}{I}
--      \field{sortinithash}{320bc8fe8101b9376f9f21cd507de0e8}
-+      \field{sortinithash}{9417e9a1288a9371e2691d999083ed39}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -379,7 +379,7 @@ my $l10 = q|    \entry{L10}{book}{}
-       \strng{authornamehash}{37b4325752e394ddfb2fc810f6c88e27}
-       \strng{authorfullhash}{37b4325752e394ddfb2fc810f6c88e27}
-       \field{sortinit}{J}
--      \field{sortinithash}{fce5f8d0bd05e8d93f3dbe21c78897ca}
-+      \field{sortinithash}{c45040a764d616897e7f5b30174d7b92}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -402,7 +402,7 @@ my $l10a = q|    \entry{L10a}{book}{}
-       \strng{authornamehash}{7bf2c9d8b89a1930ee91bfddcaf20c9c}
-       \strng{authorfullhash}{7bf2c9d8b89a1930ee91bfddcaf20c9c}
-       \field{sortinit}{P}
--      \field{sortinithash}{8d51b3d5b78d75b54308d706b9bbe285}
-+      \field{sortinithash}{bb5b15f2db90f7aef79bb9e83defefcb}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -427,7 +427,7 @@ my $l11 = q|    \entry{L11}{book}{}
-       \strng{authornamehash}{9f48d231be68c9435fab4faca55a5caf}
-       \strng{authorfullhash}{9f48d231be68c9435fab4faca55a5caf}
-       \field{sortinit}{v}
--      \field{sortinithash}{75dd7385c90b2252c3ae853a80ca853b}
-+      \field{sortinithash}{02432525618c08e2b03cac47c19764af}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -449,7 +449,7 @@ my $l12 = q|    \entry{L12}{book}{}
-       \strng{authornamehash}{d7ca88c13a8f7ce1c23e920010a31f83}
-       \strng{authorfullhash}{d7ca88c13a8f7ce1c23e920010a31f83}
-       \field{sortinit}{d}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \true{uniqueprimaryauthor}
-       \field{labelnamesource}{author}
-     \endentry
-@@ -470,7 +470,7 @@ my $l13 = q|    \entry{L13}{book}{}
-       \strng{authornamehash}{227ac48bb788a658cfaa4eefc71ff0cc}
-       \strng{authorfullhash}{227ac48bb788a658cfaa4eefc71ff0cc}
-       \field{sortinit}{V}
--      \field{sortinithash}{75dd7385c90b2252c3ae853a80ca853b}
-+      \field{sortinithash}{02432525618c08e2b03cac47c19764af}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -490,7 +490,7 @@ my $l14 = q|    \entry{L14}{book}{}
-       \strng{authornamehash}{779475052c17ed56dc3be900d0dfdf87}
-       \strng{authorfullhash}{779475052c17ed56dc3be900d0dfdf87}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -513,7 +513,7 @@ my $l15 = q|    \entry{L15}{book}{}
-       \strng{authorfullhash}{783c636e853e47a854ae034ebe9dde62}
-       \field{extraname}{1}
-       \field{sortinit}{v}
--      \field{sortinithash}{75dd7385c90b2252c3ae853a80ca853b}
-+      \field{sortinithash}{02432525618c08e2b03cac47c19764af}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -536,7 +536,7 @@ my $l16 = q|    \entry{L16}{book}{}
-       \strng{authorfullhash}{783c636e853e47a854ae034ebe9dde62}
-       \field{extraname}{2}
-       \field{sortinit}{v}
--      \field{sortinithash}{75dd7385c90b2252c3ae853a80ca853b}
-+      \field{sortinithash}{02432525618c08e2b03cac47c19764af}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -557,7 +557,7 @@ my $l17 = q|    \entry{L17}{book}{}
-       \strng{authorfullhash}{b51f667a3384d92ea5458ba80716bff7}
-       \field{extraname}{1}
-       \field{sortinit}{L}
--      \field{sortinithash}{2c7981aaabc885868aba60f0c09ee20f}
-+      \field{sortinithash}{dad3efd0836470093a7b4a7bb756eb8c}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -578,7 +578,7 @@ my $l18 = q|    \entry{L18}{book}{}
-       \strng{authorfullhash}{b51f667a3384d92ea5458ba80716bff7}
-       \field{extraname}{2}
-       \field{sortinit}{L}
--      \field{sortinithash}{2c7981aaabc885868aba60f0c09ee20f}
-+      \field{sortinithash}{dad3efd0836470093a7b4a7bb756eb8c}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -598,7 +598,7 @@ my $l19 = q|    \entry{L19}{book}{}
-       \strng{authornamehash}{83caa52f21f97e572dd3267bdf62978a}
-       \strng{authorfullhash}{83caa52f21f97e572dd3267bdf62978a}
-       \field{sortinit}{M}
--      \field{sortinithash}{cfd219b90152c06204fab207bc6c7cab}
-+      \field{sortinithash}{2e5c2f51f7fa2d957f3206819bf86dc3}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -618,7 +618,7 @@ my $l19a = q|    \entry{L19a}{book}{}
-       \strng{authornamehash}{0963f6904ccfeaac2770c5882a587001}
-       \strng{authorfullhash}{0963f6904ccfeaac2770c5882a587001}
-       \field{sortinit}{L}
--      \field{sortinithash}{2c7981aaabc885868aba60f0c09ee20f}
-+      \field{sortinithash}{dad3efd0836470093a7b4a7bb756eb8c}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -639,7 +639,7 @@ my $l20 = q|    \entry{L20}{book}{}
-       \strng{authornamehash}{5f26c2f3b33095d5b005714893f4d698}
-       \strng{authorfullhash}{5f26c2f3b33095d5b005714893f4d698}
-       \field{sortinit}{F}
--      \field{sortinithash}{669c706c6f1fbf3b5a83d26f1d9e9e72}
-+      \field{sortinithash}{fb0c0faa89eb6abae8213bf60e6799ea}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -660,7 +660,7 @@ my $l21 = q|    \entry{L21}{book}{}
-       \strng{authorfullhash}{4389a3c0dc7da74487b50808ba9436ad}
-       \field{extraname}{1}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -681,7 +681,7 @@ my $l22u = q|    \entry{L22}{book}{}
-       \strng{authorfullhash}{e58b861545799d0eaf883402a882126e}
-       \field{extraname}{1}
-       \field{sortinit}{Š}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -703,7 +703,7 @@ my $l22 = q|    \entry{L22}{book}{}
-       \strng{authorfullhash}{e58b861545799d0eaf883402a882126e}
-       \field{extraname}{1}
-       \field{sortinit}{\v{S}}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \true{uniqueprimaryauthor}
-       \field{labelnamesource}{author}
-     \endentry
-@@ -726,7 +726,7 @@ my $l23 = q|    \entry{L23}{book}{}
-       \strng{authorfullhash}{4389a3c0dc7da74487b50808ba9436ad}
-       \field{extraname}{3}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -747,7 +747,7 @@ my $l24 = q|    \entry{L24}{book}{}
-       \strng{authorfullhash}{e58b861545799d0eaf883402a882126e}
-       \field{extraname}{2}
-       \field{sortinit}{Š}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -765,7 +765,7 @@ my $l25 = q|    \entry{L25}{book}{}
-       \strng{authornamehash}{d7cd2c5ea0848abc3e90609558b84a45}
-       \strng{authorfullhash}{d7cd2c5ea0848abc3e90609558b84a45}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -783,7 +783,7 @@ my $l26 = q|    \entry{L26}{book}{}
-       \strng{authornamehash}{8eee1dbafdbd0a4b73157e60f18b4784}
-       \strng{authorfullhash}{8eee1dbafdbd0a4b73157e60f18b4784}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -791,7 +791,7 @@ my $l26 = q|    \entry{L26}{book}{}
- # Malformed anyway but a decent test
- my $l28 = q|    \entry{L28}{book}{}
-       \field{sortinit}{0}
--      \field{sortinithash}{168ad0c7c5ed09f1d28c6675717b5b03}
-+      \field{sortinithash}{bcf7a1f4afb88b7299f988caccb80d1c}
-       \warn{\item Name "Deux et al.,, O." is malformed (consecutive commas): skipping name}
-     \endentry
- |;
-@@ -810,7 +810,7 @@ my $l29 = q|    \entry{L29}{book}{}
-       \strng{authornamehash}{27ad192a3a715aa89152b2a4ee392e8c}
-       \strng{authorfullhash}{27ad192a3a715aa89152b2a4ee392e8c}
-       \field{sortinit}{U}
--      \field{sortinithash}{36a2444f5238e0dcf4bb59704df6624d}
-+      \field{sortinithash}{77a6935510e008adcf5b555e7b4f0711}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -850,7 +850,7 @@ my $l31 = q|    \entry{L31}{book}{}
-       \strng{translatornamehash}{29c3ff92fff79d09a8b44d2f775de0b1}
-       \strng{translatorfullhash}{29c3ff92fff79d09a8b44d2f775de0b1}
-       \field{sortinit}{\~{Z}}
--      \field{sortinithash}{156173bd08b075d7295bc3e0f4735a04}
-+      \field{sortinithash}{8f7b480688e809b50b6f6577b16f3db5}
-       \true{uniqueprimaryauthor}
-       \field{labelnamesource}{author}
-     \endentry
-diff --git a/t/options.t b/t/options.t
-index 940a282..c14d694 100644
---- a/t/options.t
-+++ b/t/options.t
-@@ -100,7 +100,7 @@ my $l1 = q|    \entry{L1}{book}{}
-       \strng{authornamehash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \strng{authorfullhash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -137,7 +137,7 @@ my $l2 = q|    \entry{L2}{book}{maxcitenames=3,maxbibnames=3,maxsortnames=3,maxi
-       \strng{authornamehash}{19eec87c959944d6d9c72434a42856ba}
-       \strng{authorfullhash}{19eec87c959944d6d9c72434a42856ba}
-       \field{sortinit}{E}
--      \field{sortinithash}{f615fb9c6fba11c6f962fb3fd599810e}
-+      \field{sortinithash}{c554bd1a0b76ea92b9f105fe36d9c7b0}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -169,7 +169,7 @@ my $l3 = q|    \entry{L3}{book}{blah=10}
-       \strng{authornamehash}{490250da1f3b92580d97563dc96c6c84}
-       \strng{authorfullhash}{490250da1f3b92580d97563dc96c6c84}
-       \field{sortinit}{B}
--      \field{sortinithash}{276475738cc058478c1677046f857703}
-+      \field{sortinithash}{8de16967003c7207dae369d874f1456e}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-diff --git a/t/related-entries.t b/t/related-entries.t
-index 53dce64..b38ac79 100644
---- a/t/related-entries.t
-+++ b/t/related-entries.t
-@@ -56,7 +56,7 @@ my $k1 = q|    \entry{key1}{article}{}
-       \strng{authorfullhash}{a517747c3d12f99244ae598910d979c5}
-       \field{extraname}{1}
-       \field{sortinit}{1}
--      \field{sortinithash}{2174f786c6195e7fe2ee1c229b416e29}
-+      \field{sortinithash}{50c6687d7fc80f50136d75228e3c59ba}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -95,7 +95,7 @@ my $k2 = q|    \entry{key2}{inbook}{}
-       \strng{authorfullhash}{a517747c3d12f99244ae598910d979c5}
-       \field{extraname}{2}
-       \field{sortinit}{2}
--      \field{sortinithash}{cbff857e587bcb4635511624d773949e}
-+      \field{sortinithash}{ed39bb39cf854d5250e95b1c1f94f4ed}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -243,7 +243,7 @@ my $kck4 = q|    \entry{caf8e34be07426ae7127c1b4829983c1}{inbook}{dataonly,useed
- 
- my $c1 = q|    \entry{c1}{book}{}
-       \field{sortinit}{3}
--      \field{sortinithash}{a4b52e5432884761f50fb9571273b93e}
-+      \field{sortinithash}{a37a8ef248a93c322189792c34fc68c9}
-       \field{related}{9ab62b5ef34a985438bfdf7ee0102229}
-     \endentry
- |;
-@@ -330,7 +330,7 @@ my $un1 = q|    \entry{kullback}{book}{}
-       \strng{authorfullhash}{34c5bbf9876c37127c3abe4e7d7a7198}
-       \field{extraname}{1}
-       \field{sortinit}{5}
--      \field{sortinithash}{3c19c3776b658b3558e9e2e4840c01e2}
-+      \field{sortinithash}{5dd416adbafacc8226114bc0202d5fdd}
-       \field{extradatescope}{year}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -364,7 +364,7 @@ my $un2 = q|    \entry{kullback:related}{book}{}
-       \strng{authorfullhash}{34c5bbf9876c37127c3abe4e7d7a7198}
-       \field{extraname}{2}
-       \field{sortinit}{6}
--      \field{sortinithash}{57e57fb8451e7fcfa45d1e069f6d3136}
-+      \field{sortinithash}{7851c86048328b027313775d8fbd2131}
-       \field{extradatescope}{year}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-diff --git a/t/remote-files.t b/t/remote-files.t
-index c747dcd..6f4cf4d 100644
---- a/t/remote-files.t
-+++ b/t/remote-files.t
-@@ -86,7 +86,7 @@ my $cu1 = q|    \entry{citeulike:8283461}{article}{}
-       \strng{authornamehash}{a700cc0bdce78f5a1f50ff6314ff6f2a}
-       \strng{authorfullhash}{094b095bbb7ac93fdd3e2eafdcec0cac}
-       \field{sortinit}{M}
--      \field{sortinithash}{cfd219b90152c06204fab207bc6c7cab}
-+      \field{sortinithash}{2e5c2f51f7fa2d957f3206819bf86dc3}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{year}
-       \field{labelnamesource}{author}
-@@ -133,7 +133,7 @@ my $dl1 = q|    \entry{AbdelbarH98}{article}{}
-       \strng{authornamehash}{bb887c5d0458bfb1f3f7e6afc8d1def4}
-       \strng{authorfullhash}{bb887c5d0458bfb1f3f7e6afc8d1def4}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{year}
-       \field{labelnamesource}{author}
-diff --git a/t/set-dynamic.t b/t/set-dynamic.t
-index 9ab5fdd..0846f8a 100644
---- a/t/set-dynamic.t
-+++ b/t/set-dynamic.t
-@@ -51,7 +51,7 @@ my $out = $biber->get_output_obj;
- my $string1 = q|    \entry{DynSet}{set}{}
-       \set{Dynamic1,Dynamic2,Dynamic3}
-       \field{sortinit}{1}
--      \field{sortinithash}{2174f786c6195e7fe2ee1c229b416e29}
-+      \field{sortinithash}{50c6687d7fc80f50136d75228e3c59ba}
-     \endentry
- |;
- 
-@@ -71,7 +71,7 @@ my $string2 = q|    \entry{Dynamic1}{book}{}
-       \strng{authornamehash}{252caa7921a061ca92087a1a52f15b78}
-       \strng{authorfullhash}{252caa7921a061ca92087a1a52f15b78}
-       \field{sortinit}{8}
--      \field{sortinithash}{07edf88d4ea82509b9c4b4d13f41c452}
-+      \field{sortinithash}{1b24cab5087933ef0826a7cd3b99e994}
-       \field{labeldatesource}{year}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -98,7 +98,7 @@ my $string3 = q|    \entry{Dynamic2}{book}{}
-       \strng{authornamehash}{894a5fe6de820f5dcce84a65581667f4}
-       \strng{authorfullhash}{894a5fe6de820f5dcce84a65581667f4}
-       \field{sortinit}{9}
--      \field{sortinithash}{1dd72ab054147731c9d824b49aba0534}
-+      \field{sortinithash}{54047ffb55bdefa0694bbd554c1b11a0}
-       \field{labeldatesource}{year}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -124,7 +124,7 @@ my $string4 = q|    \entry{Dynamic3}{book}{}
-       \strng{authornamehash}{fc3cc97631ceaecdde2aee6cc60ab42b}
-       \strng{authorfullhash}{fc3cc97631ceaecdde2aee6cc60ab42b}
-       \field{sortinit}{1}
--      \field{sortinithash}{2174f786c6195e7fe2ee1c229b416e29}
-+      \field{sortinithash}{50c6687d7fc80f50136d75228e3c59ba}
-       \field{labeldatesource}{year}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -151,7 +151,7 @@ my $string5 = q|    \entry{Dynamic3}{book}{}
-       \strng{authornamehash}{fc3cc97631ceaecdde2aee6cc60ab42b}
-       \strng{authorfullhash}{fc3cc97631ceaecdde2aee6cc60ab42b}
-       \field{sortinit}{1}
--      \field{sortinithash}{2174f786c6195e7fe2ee1c229b416e29}
-+      \field{sortinithash}{50c6687d7fc80f50136d75228e3c59ba}
-       \field{labeldatesource}{year}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-diff --git a/t/set-legacy.t b/t/set-legacy.t
-index 4e56991..9d40acb 100644
---- a/t/set-legacy.t
-+++ b/t/set-legacy.t
-@@ -45,7 +45,7 @@ my $out = $biber->get_output_obj;
- my $string1 = q|    \entry{Elias1955}{set}{}
-       \set{Elias1955a,Elias1955b}
-       \field{sortinit}{1}
--      \field{sortinithash}{2174f786c6195e7fe2ee1c229b416e29}
-+      \field{sortinithash}{50c6687d7fc80f50136d75228e3c59ba}
-     \endentry
- |;
- 
-diff --git a/t/set-static.t b/t/set-static.t
-index 1e45d4d..a6cbe73 100644
---- a/t/set-static.t
-+++ b/t/set-static.t
-@@ -47,7 +47,7 @@ my $out = $biber->get_output_obj;
- my $string1 = q|    \entry{Static1}{set}{}
-       \set{Static2,Static4,Static3}
-       \field{sortinit}{B}
--      \field{sortinithash}{276475738cc058478c1677046f857703}
-+      \field{sortinithash}{8de16967003c7207dae369d874f1456e}
-       \field{annotation}{Some notes}
-     \endentry
- |;
-@@ -68,7 +68,7 @@ my $string2 = q|    \entry{Static2}{book}{}
-       \strng{authornamehash}{43874d80d7ce68027102819f16c47df1}
-       \strng{authorfullhash}{43874d80d7ce68027102819f16c47df1}
-       \field{sortinit}{B}
--      \field{sortinithash}{276475738cc058478c1677046f857703}
-+      \field{sortinithash}{8de16967003c7207dae369d874f1456e}
-       \field{labeldatesource}{year}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -94,7 +94,7 @@ my $string3 = q|    \entry{Static3}{book}{}
-       \strng{authornamehash}{22dafa5cd57bb5dd7f3e3bab98fd539c}
-       \strng{authorfullhash}{22dafa5cd57bb5dd7f3e3bab98fd539c}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{labeldatesource}{year}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -119,7 +119,7 @@ my $string4 = q|    \entry{Static4}{book}{}
-       \strng{authornamehash}{da80091c8cd89e5269bd55af1bd5d2fa}
-       \strng{authorfullhash}{da80091c8cd89e5269bd55af1bd5d2fa}
-       \field{sortinit}{C}
--      \field{sortinithash}{963e9d84a3da2344e8833203de5aed05}
-+      \field{sortinithash}{4c244ceae61406cdc0cc2ce1cb1ff703}
-       \field{labeldatesource}{year}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -145,7 +145,7 @@ my $string5 = q|    \entry{Static2}{book}{}
-       \strng{authornamehash}{43874d80d7ce68027102819f16c47df1}
-       \strng{authorfullhash}{43874d80d7ce68027102819f16c47df1}
-       \field{sortinit}{1}
--      \field{sortinithash}{2174f786c6195e7fe2ee1c229b416e29}
-+      \field{sortinithash}{50c6687d7fc80f50136d75228e3c59ba}
-       \field{labeldatesource}{year}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-diff --git a/t/skips.t b/t/skips.t
-index 7c80d39..caa835f 100644
---- a/t/skips.t
-+++ b/t/skips.t
-@@ -50,7 +50,7 @@ my $set1 = q|    \entry{seta}{set}{}
-       \field{labelalpha}{Doe10}
-       \field{extraalpha}{1}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-     \endentry
- |;
- 
-@@ -70,7 +70,7 @@ my $set2 = q|    \entry{set:membera}{book}{}
-       \strng{authornamehash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \strng{authorfullhash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -97,7 +97,7 @@ my $set3 = q|    \entry{set:memberb}{book}{}
-       \strng{authornamehash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \strng{authorfullhash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -123,7 +123,7 @@ my $set4 = q|    \entry{set:memberc}{book}{}
-       \strng{authornamehash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \strng{authorfullhash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -150,7 +150,7 @@ my $noset1 = q|    \entry{noseta}{book}{}
-       \field{extraname}{3}
-       \field{labelalpha}{Doe10}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extradate}{2}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-@@ -180,7 +180,7 @@ my $noset2 = q|    \entry{nosetb}{book}{}
-       \field{extraname}{4}
-       \field{labelalpha}{Doe10}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extradate}{3}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-@@ -210,7 +210,7 @@ my $noset3 = q|    \entry{nosetc}{book}{}
-       \field{extraname}{5}
-       \field{labelalpha}{Doe10}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extradate}{4}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-@@ -244,7 +244,7 @@ my $sk4 = q|    \entry{skip4}{article}{dataonly}
-       \strng{authornamehash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \strng{authorfullhash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{labeldatesource}{year}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-diff --git a/t/sort-complex.t b/t/sort-complex.t
-index aa3e564..d52db08 100644
---- a/t/sort-complex.t
-+++ b/t/sort-complex.t
-@@ -123,7 +123,7 @@ my $l4 = q|    \entry{L4}{book}{}
-       \field{extraname}{2}
-       \field{labelalpha}{Doe\textbf{+}95}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extraalpha}{2}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -155,7 +155,7 @@ my $l1 = q|    \entry{L1}{book}{}
-       \field{extraname}{1}
-       \field{labelalpha}{Doe95}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extraalpha}{1}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -187,7 +187,7 @@ my $l2 = q|    \entry{L2}{book}{}
-       \field{extraname}{3}
-       \field{labelalpha}{Doe95}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extraalpha}{3}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -219,7 +219,7 @@ my $l3 = q|    \entry{L3}{book}{}
-       \field{extraname}{2}
-       \field{labelalpha}{Doe95}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extraalpha}{2}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -253,7 +253,7 @@ my $l5 = q|    \entry{L5}{book}{}
-       \field{extraname}{1}
-       \field{labelalpha}{Doe\textbf{+}95}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \field{extraalpha}{1}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-diff --git a/t/tdata/full-bbl.bbl b/t/tdata/full-bbl.bbl
-index 4f168de..07c2fab 100644
---- a/t/tdata/full-bbl.bbl
-+++ b/t/tdata/full-bbl.bbl
-@@ -36,7 +36,7 @@
-       \strng{authorfullhash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \field{labelalpha}{\emph{A}}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -63,7 +63,7 @@
-       \strng{authorfullhash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \field{labelalpha}{\emph{A}}
-       \field{sortinit}{A}
--      \field{sortinithash}{d77c7cdd82ff690d4c3ef13216f92f0b}
-+      \field{sortinithash}{a3dcedd53b04d1adfd5ac303ecd5e6fa}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-@@ -90,7 +90,7 @@
-       \strng{authorfullhash}{bd051a2f7a5f377e3a62581b0e0f8577}
-       \field{labelalpha}{\emph{A}}
-       \field{sortinit}{D}
--      \field{sortinithash}{2ef1bd9a78cc71eb74d7231c635177b8}
-+      \field{sortinithash}{c438b3d5d027251ba63f5ed538d98af5}
-       \true{singletitle}
-       \field{labelnamesource}{author}
-       \field{labeltitlesource}{title}
-diff --git a/t/tdata/full-bblxml.bblxml b/t/tdata/full-bblxml.bblxml
-index 9eea7d1..a39a787 100644
---- a/t/tdata/full-bblxml.bblxml
-+++ b/t/tdata/full-bblxml.bblxml
-@@ -47,7 +47,7 @@
-         <bbl:field name="authorbibnamehash">860705eb8ffac6e40507746c7ede79ca</bbl:field>
-         <bbl:field name="labelalpha">Aks\textbf{+}06</bbl:field>
-         <bbl:field name="sortinit">A</bbl:field>
--        <bbl:field name="sortinithash">d77c7cdd82ff690d4c3ef13216f92f0b</bbl:field>
-+        <bbl:field name="sortinithash">a3dcedd53b04d1adfd5ac303ecd5e6fa</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">title</bbl:field>
-         <bbl:field name="indextitle">Effect of immobilization on catalytic characteristics</bbl:field>
-@@ -79,7 +79,7 @@
-         <bbl:field name="authorbibnamehash">9717d2d959a4b18727868ca7928c34b4</bbl:field>
-         <bbl:field name="labelalpha">Ang02</bbl:field>
-         <bbl:field name="sortinit">A</bbl:field>
--        <bbl:field name="sortinithash">d77c7cdd82ff690d4c3ef13216f92f0b</bbl:field>
-+        <bbl:field name="sortinithash">a3dcedd53b04d1adfd5ac303ecd5e6fa</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">shorttitle</bbl:field>
-         <bbl:field name="annotation">A German article in a French journal. Apart from that, a typical article entry. Note the indextitle field</bbl:field>
-@@ -109,7 +109,7 @@
-         </bbl:set>
-         <bbl:field name="labelalpha">Gla61</bbl:field>
-         <bbl:field name="sortinit">G</bbl:field>
--        <bbl:field name="sortinithash">5e8d2bf9d38de41b1528bd307546008f</bbl:field>
-+        <bbl:field name="sortinithash">62eb2aa29549e4fdbd3cb154ec5711cb</bbl:field>
-         <bbl:field name="annotation">A set entry with three members discussing the standard model of particle physics.</bbl:field>
-       </bbl:entry>
-       <bbl:entry key="stdmodel:glashow" type="article">
-@@ -129,7 +129,7 @@
-         <bbl:field name="authorfullhash">eb3f242602109f5bdbeb41fdd990fcc0</bbl:field>
-         <bbl:field name="authorbibnamehash">eb3f242602109f5bdbeb41fdd990fcc0</bbl:field>
-         <bbl:field name="sortinit">G</bbl:field>
--        <bbl:field name="sortinithash">5e8d2bf9d38de41b1528bd307546008f</bbl:field>
-+        <bbl:field name="sortinithash">62eb2aa29549e4fdbd3cb154ec5711cb</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">title</bbl:field>
-         <bbl:field name="journaltitle">Nucl. Phys.</bbl:field>
-@@ -168,7 +168,7 @@
-         <bbl:field name="extraname">1</bbl:field>
-         <bbl:field name="labelalpha">Knu86</bbl:field>
-         <bbl:field name="sortinit">K</bbl:field>
--        <bbl:field name="sortinithash">9fd838a31ba64d981e8f44562bd33f89</bbl:field>
-+        <bbl:field name="sortinithash">d3edc18d54b9438a72c24c925bfb38f4</bbl:field>
-         <bbl:field name="extraalpha">1</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">shorttitle</bbl:field>
-@@ -207,7 +207,7 @@
-         <bbl:field name="extraname">2</bbl:field>
-         <bbl:field name="labelalpha">Knu86</bbl:field>
-         <bbl:field name="sortinit">K</bbl:field>
--        <bbl:field name="sortinithash">9fd838a31ba64d981e8f44562bd33f89</bbl:field>
-+        <bbl:field name="sortinithash">d3edc18d54b9438a72c24c925bfb38f4</bbl:field>
-         <bbl:field name="extraalpha">2</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">shorttitle</bbl:field>
-@@ -236,7 +236,7 @@
-         <bbl:field name="authorbibnamehash">d52f05e0199eae563725b4165f4b2520</bbl:field>
-         <bbl:field name="labelalpha">Ree58</bbl:field>
-         <bbl:field name="sortinit">R</bbl:field>
--        <bbl:field name="sortinithash">da6b42bd3ab22fee61abed031ee405f7</bbl:field>
-+        <bbl:field name="sortinithash">b9c68a358aea118dfa887b6e902414a7</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">title</bbl:field>
-         <bbl:field name="annotation">An article entry with a series and a volume field. Note the format of the series. If the value of the series field is an integer, this number is printed as an ordinal and the string *series is appended automatically</bbl:field>
-@@ -286,7 +286,7 @@
-         <bbl:field name="editorfullhash">d0ec890e59163c24c111a08d2a4be982</bbl:field>
-         <bbl:field name="editorbibnamehash">d0ec890e59163c24c111a08d2a4be982</bbl:field>
-         <bbl:field name="sortinit">S</bbl:field>
--        <bbl:field name="sortinithash">322b1d5276f2f6c1bccdcd15920dbee6</bbl:field>
-+        <bbl:field name="sortinithash">c319cff79d99c853d775f88277d4e45f</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">title</bbl:field>
-         <bbl:field name="booksubtitle">Relativistic groups and analyticity</bbl:field>
-@@ -317,7 +317,7 @@
-         <bbl:field name="authorbibnamehash">93f17724cbd884231ef39a73755ef5bb</bbl:field>
-         <bbl:field name="labelalpha">Sho91</bbl:field>
-         <bbl:field name="sortinit">S</bbl:field>
--        <bbl:field name="sortinithash">322b1d5276f2f6c1bccdcd15920dbee6</bbl:field>
-+        <bbl:field name="sortinithash">c319cff79d99c853d775f88277d4e45f</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">title</bbl:field>
-         <bbl:field name="annotation">An article entry with series, volume, and number fields. Note the format of the series which is a localization key</bbl:field>
-@@ -353,7 +353,7 @@
-         <bbl:field name="authorfullhash">15e144c72b0b9d10db00ddc6d37a19e6</bbl:field>
-         <bbl:field name="authorbibnamehash">15e144c72b0b9d10db00ddc6d37a19e6</bbl:field>
-         <bbl:field name="sortinit">W</bbl:field>
--        <bbl:field name="sortinithash">ecb89ff85896a47dc313960773ac311d</bbl:field>
-+        <bbl:field name="sortinithash">1af34bd8c148ffb32de1494636b49713</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">title</bbl:field>
-         <bbl:field name="journaltitle">Phys. Rev. Lett.</bbl:field>
-@@ -411,7 +411,7 @@
-         <bbl:field name="authorbibnamehash">860705eb8ffac6e40507746c7ede79ca</bbl:field>
-         <bbl:field name="labelalpha">Aks\textbf{+}06</bbl:field>
-         <bbl:field name="sortinit">A</bbl:field>
--        <bbl:field name="sortinithash">d77c7cdd82ff690d4c3ef13216f92f0b</bbl:field>
-+        <bbl:field name="sortinithash">a3dcedd53b04d1adfd5ac303ecd5e6fa</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">title</bbl:field>
-         <bbl:field name="indextitle">Effect of immobilization on catalytic characteristics</bbl:field>
-@@ -443,7 +443,7 @@
-         <bbl:field name="authorbibnamehash">9717d2d959a4b18727868ca7928c34b4</bbl:field>
-         <bbl:field name="labelalpha">Ang02</bbl:field>
-         <bbl:field name="sortinit">A</bbl:field>
--        <bbl:field name="sortinithash">d77c7cdd82ff690d4c3ef13216f92f0b</bbl:field>
-+        <bbl:field name="sortinithash">a3dcedd53b04d1adfd5ac303ecd5e6fa</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">shorttitle</bbl:field>
-         <bbl:field name="annotation">A German article in a French journal. Apart from that, a typical article entry. Note the indextitle field</bbl:field>
-@@ -473,7 +473,7 @@
-         </bbl:set>
-         <bbl:field name="labelalpha">Gla61</bbl:field>
-         <bbl:field name="sortinit">G</bbl:field>
--        <bbl:field name="sortinithash">5e8d2bf9d38de41b1528bd307546008f</bbl:field>
-+        <bbl:field name="sortinithash">62eb2aa29549e4fdbd3cb154ec5711cb</bbl:field>
-         <bbl:field name="annotation">A set entry with three members discussing the standard model of particle physics.</bbl:field>
-       </bbl:entry>
-       <bbl:entry key="stdmodel:glashow" type="article">
-@@ -493,7 +493,7 @@
-         <bbl:field name="authorfullhash">eb3f242602109f5bdbeb41fdd990fcc0</bbl:field>
-         <bbl:field name="authorbibnamehash">eb3f242602109f5bdbeb41fdd990fcc0</bbl:field>
-         <bbl:field name="sortinit">G</bbl:field>
--        <bbl:field name="sortinithash">5e8d2bf9d38de41b1528bd307546008f</bbl:field>
-+        <bbl:field name="sortinithash">62eb2aa29549e4fdbd3cb154ec5711cb</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">title</bbl:field>
-         <bbl:field name="journaltitle">Nucl. Phys.</bbl:field>
-@@ -532,7 +532,7 @@
-         <bbl:field name="extraname">1</bbl:field>
-         <bbl:field name="labelalpha">Knu86</bbl:field>
-         <bbl:field name="sortinit">K</bbl:field>
--        <bbl:field name="sortinithash">9fd838a31ba64d981e8f44562bd33f89</bbl:field>
-+        <bbl:field name="sortinithash">d3edc18d54b9438a72c24c925bfb38f4</bbl:field>
-         <bbl:field name="extraalpha">1</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">shorttitle</bbl:field>
-@@ -571,7 +571,7 @@
-         <bbl:field name="extraname">2</bbl:field>
-         <bbl:field name="labelalpha">Knu86</bbl:field>
-         <bbl:field name="sortinit">K</bbl:field>
--        <bbl:field name="sortinithash">9fd838a31ba64d981e8f44562bd33f89</bbl:field>
-+        <bbl:field name="sortinithash">d3edc18d54b9438a72c24c925bfb38f4</bbl:field>
-         <bbl:field name="extraalpha">2</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">shorttitle</bbl:field>
-@@ -600,7 +600,7 @@
-         <bbl:field name="authorbibnamehash">d52f05e0199eae563725b4165f4b2520</bbl:field>
-         <bbl:field name="labelalpha">Ree58</bbl:field>
-         <bbl:field name="sortinit">R</bbl:field>
--        <bbl:field name="sortinithash">da6b42bd3ab22fee61abed031ee405f7</bbl:field>
-+        <bbl:field name="sortinithash">b9c68a358aea118dfa887b6e902414a7</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">title</bbl:field>
-         <bbl:field name="annotation">An article entry with a series and a volume field. Note the format of the series. If the value of the series field is an integer, this number is printed as an ordinal and the string *series is appended automatically</bbl:field>
-@@ -650,7 +650,7 @@
-         <bbl:field name="editorfullhash">d0ec890e59163c24c111a08d2a4be982</bbl:field>
-         <bbl:field name="editorbibnamehash">d0ec890e59163c24c111a08d2a4be982</bbl:field>
-         <bbl:field name="sortinit">S</bbl:field>
--        <bbl:field name="sortinithash">322b1d5276f2f6c1bccdcd15920dbee6</bbl:field>
-+        <bbl:field name="sortinithash">c319cff79d99c853d775f88277d4e45f</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">title</bbl:field>
-         <bbl:field name="booksubtitle">Relativistic groups and analyticity</bbl:field>
-@@ -681,7 +681,7 @@
-         <bbl:field name="authorbibnamehash">93f17724cbd884231ef39a73755ef5bb</bbl:field>
-         <bbl:field name="labelalpha">Sho91</bbl:field>
-         <bbl:field name="sortinit">S</bbl:field>
--        <bbl:field name="sortinithash">322b1d5276f2f6c1bccdcd15920dbee6</bbl:field>
-+        <bbl:field name="sortinithash">c319cff79d99c853d775f88277d4e45f</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">title</bbl:field>
-         <bbl:field name="annotation">An article entry with series, volume, and number fields. Note the format of the series which is a localization key</bbl:field>
-@@ -717,7 +717,7 @@
-         <bbl:field name="authorfullhash">15e144c72b0b9d10db00ddc6d37a19e6</bbl:field>
-         <bbl:field name="authorbibnamehash">15e144c72b0b9d10db00ddc6d37a19e6</bbl:field>
-         <bbl:field name="sortinit">W</bbl:field>
--        <bbl:field name="sortinithash">ecb89ff85896a47dc313960773ac311d</bbl:field>
-+        <bbl:field name="sortinithash">1af34bd8c148ffb32de1494636b49713</bbl:field>
-         <bbl:field name="labelnamesource">author</bbl:field>
-         <bbl:field name="labeltitlesource">title</bbl:field>
-         <bbl:field name="journaltitle">Phys. Rev. Lett.</bbl:field>
-diff --git a/t/tdata/remote-files.bcf b/t/tdata/remote-files.bcf
-index c2d784b..a2a1842 100644
---- a/t/tdata/remote-files.bcf
-+++ b/t/tdata/remote-files.bcf
-@@ -1853,12 +1853,12 @@
-     <bcf:datasource type="file" datatype="bibtex">http://www.citeulike.org/bibtex/group/8082</bcf:datasource>
-     <bcf:datasource type="file" datatype="bibtex">http://people.cs.uu.nl/hansb/graphs-bib/definitions.bib</bcf:datasource>
-     <bcf:datasource type="file" datatype="bibtex">http://people.cs.uu.nl/hansb/graphs-bib/papers.bib</bcf:datasource>
--    <bcf:datasource type="file" datatype="bibtex">https://api.zotero.org/groups/9097/items/II22KQ7D?format=bibtex&amp;limit=1</bcf:datasource>
-+    <bcf:datasource type="file" datatype="bibtex">https://api.zotero.org/groups/9097/items/8VITAT46?format=bibtex&amp;limit=1</bcf:datasource>
-   </bcf:bibdata>
-   <bcf:section number="0">
-     <bcf:citekey order="1">citeulike:8283461</bcf:citekey>
-     <bcf:citekey order="2">AbdelbarH98</bcf:citekey>
--    <bcf:citekey order="3">merleau-ponty_philosophe_2010</bcf:citekey>
-+    <bcf:citekey order="3">crossley_politics_1994</bcf:citekey>
-   </bcf:section>
-   <!-- SORTING TEMPLATES -->
-   <bcf:sortingtemplate name="nty">
-diff --git a/t/uniqueness-nameparts.t b/t/uniqueness-nameparts.t
-index beb2e39..1fb65a8 100644
---- a/t/uniqueness-nameparts.t
-+++ b/t/uniqueness-nameparts.t
-@@ -81,7 +81,7 @@ my $un1 = q|    \entry{un1}{article}{}
-       \strng{authorfullhash}{329d8f9192ea3349d700160c9ddb505d}
-       \field{labelalpha}{SmiJohSim}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -106,7 +106,7 @@ my $un2 = q|    \entry{un2}{article}{}
-       \strng{authorfullhash}{7551114aede4ef69e4b3683039801706}
-       \field{labelalpha}{SmiJohAla}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -131,7 +131,7 @@ my $un3 = q|    \entry{un3}{article}{}
-       \strng{authorfullhash}{401aebda288799a7c757526242d8c9fc}
-       \field{labelalpha}{SmiJohArt}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -156,7 +156,7 @@ my $un4 = q|    \entry{un4}{article}{}
-       \strng{authorfullhash}{f6038a264619efefd49c7daac56424ca}
-       \field{labelalpha}{SmiAlaSim}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -181,7 +181,7 @@ my $un1a = q|    \entry{un1}{article}{}
-       \strng{authorfullhash}{329d8f9192ea3349d700160c9ddb505d}
-       \field{labelalpha}{SmiJohSim}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -206,7 +206,7 @@ my $un2a = q|    \entry{un2}{article}{}
-       \strng{authorfullhash}{7551114aede4ef69e4b3683039801706}
-       \field{labelalpha}{SmiJohAla}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -231,7 +231,7 @@ my $un3a = q|    \entry{un3}{article}{}
-       \strng{authorfullhash}{401aebda288799a7c757526242d8c9fc}
-       \field{labelalpha}{SmiJohArt}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -257,7 +257,7 @@ my $un4a = q|    \entry{un4}{article}{}
-       \strng{authorfullhash}{f6038a264619efefd49c7daac56424ca}
-       \field{labelalpha}{SmiAlaSim}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -285,7 +285,7 @@ my $un1b = q|    \entry{un1}{article}{}
-       \field{extraname}{5}
-       \field{labelalpha}{SmiJohSim}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradate}{5}
-       \field{labelnamesource}{author}
-     \endentry
-@@ -311,7 +311,7 @@ my $un2b = q|    \entry{un2}{article}{}
-       \strng{authorfullhash}{7551114aede4ef69e4b3683039801706}
-       \field{labelalpha}{SmiJohAla}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -336,7 +336,7 @@ my $un3b = q|    \entry{un3}{article}{}
-       \strng{authorfullhash}{401aebda288799a7c757526242d8c9fc}
-       \field{labelalpha}{SmiJohArt}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{labelnamesource}{author}
-     \endentry
- |;
-@@ -364,7 +364,7 @@ my $un4b = q|    \entry{un4}{article}{}
-       \field{extraname}{1}
-       \field{labelalpha}{SmiAlaSim}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradate}{1}
-       \field{labelnamesource}{author}
-     \endentry
-@@ -393,7 +393,7 @@ my $un5 = q|    \entry{un5}{article}{uniquenametemplatename=test3}
-       \field{extraname}{2}
-       \field{labelalpha}{SmiArtSim}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradate}{2}
-       \field{labelnamesource}{author}
-     \endentry
-@@ -422,7 +422,7 @@ my $un6 = q|    \entry{un6}{article}{}
-       \field{extraname}{3}
-       \field{labelalpha}{SmiArtSmy}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradate}{3}
-       \field{labelnamesource}{author}
-     \\endentry
-@@ -451,7 +451,7 @@ my $un7 = q|    \entry{un7}{article}{}
-       \field{extraname}{4}
-       \field{labelalpha}{SmiArtSme}
-       \field{sortinit}{S}
--      \field{sortinithash}{322b1d5276f2f6c1bccdcd15920dbee6}
-+      \field{sortinithash}{c319cff79d99c853d775f88277d4e45f}
-       \field{extradate}{4}
-       \field{labelnamesource}{author}
-     \endentry
-diff --git a/t/xdata.t b/t/xdata.t
-index 7411b1d..73dcb8b 100644
---- a/t/xdata.t
-+++ b/t/xdata.t
-@@ -75,7 +75,7 @@ my $xd1 = q|    \entry{xd1}{book}{}
-       \strng{authorfullhash}{51db4bfd331cba22959ce2d224c517cd}
-       \field{extraname}{2}
-       \field{sortinit}{E}
--      \field{sortinithash}{f615fb9c6fba11c6f962fb3fd599810e}
-+      \field{sortinithash}{c554bd1a0b76ea92b9f105fe36d9c7b0}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
-@@ -107,7 +107,7 @@ my $xd2 = q|    \entry{xd2}{book}{}
-       \strng{authornamehash}{68539e0ce4922cc4957c6cabf35e6fc8}
-       \strng{authorfullhash}{68539e0ce4922cc4957c6cabf35e6fc8}
-       \field{sortinit}{P}
--      \field{sortinithash}{8d51b3d5b78d75b54308d706b9bbe285}
-+      \field{sortinithash}{bb5b15f2db90f7aef79bb9e83defefcb}
-       \field{extradatescope}{labelyear}
-       \field{labeldatesource}{}
-       \field{labelnamesource}{author}
diff --git a/gnu/packages/patches/binutils-loongson-workaround.patch b/gnu/packages/patches/binutils-loongson-workaround.patch
index f43572a53d..f05d6c3c96 100644
--- a/gnu/packages/patches/binutils-loongson-workaround.patch
+++ b/gnu/packages/patches/binutils-loongson-workaround.patch
@@ -4,22 +4,22 @@ Patch by Mark H Weaver <mhw@netris.org>.
 
 --- binutils/gas/config/tc-mips.c.orig	2012-09-04 10:21:03.000000000 -0400
 +++ binutils/gas/config/tc-mips.c	2013-10-06 02:23:21.651983768 -0400
-@@ -910,10 +910,10 @@
+@@ -934,10 +934,10 @@ enum fix_vr4120_class
  };
  
  /* ...likewise -mfix-loongson2f-jump.  */
--static bfd_boolean mips_fix_loongson2f_jump;
-+static bfd_boolean mips_fix_loongson2f_jump = FALSE;
+-static bool mips_fix_loongson2f_jump;
++static bool mips_fix_loongson2f_jump = FALSE;
  
  /* ...likewise -mfix-loongson2f-nop.  */
--static bfd_boolean mips_fix_loongson2f_nop;
-+static bfd_boolean mips_fix_loongson2f_nop = TRUE;
+-static bool mips_fix_loongson2f_nop;
++static bool mips_fix_loongson2f_nop = TRUE;
  
  /* True if -mfix-loongson2f-nop or -mfix-loongson2f-jump passed.  */
- static bfd_boolean mips_fix_loongson2f;
+ static bool mips_fix_loongson2f;
 --- binutils/gas/testsuite/gas/mips/mips.exp.orig	2012-09-04 10:17:13.000000000 -0400
 +++ binutils/gas/testsuite/gas/mips/mips.exp	2013-10-06 02:23:21.663983768 -0400
-@@ -91,6 +91,12 @@
+@@ -110,6 +110,12 @@ proc mips_arch_init {} {
  
      # Catch because the variable won't be set the first time through.
      catch {unset mips_arches}
diff --git a/gnu/packages/patches/binutils-mingw-w64-timestamp.patch b/gnu/packages/patches/binutils-mingw-w64-timestamp.patch
index b785043b62..fcfe4a36aa 100644
--- a/gnu/packages/patches/binutils-mingw-w64-timestamp.patch
+++ b/gnu/packages/patches/binutils-mingw-w64-timestamp.patch
@@ -4,14 +4,14 @@ https://salsa.debian.org/mingw-w64-team/binutils-mingw-w64.git
 
 Invoke the following in the aforementioned repo to see the original patch:
 
-  $ git show da63f6b:debian/patches/specify-timestamp.patch
+  $ git show faf7c64:debian/patches/specify-timestamp.patch
 
 Description: Allow the PE timestamp to be specified
 Author: Stephen Kitt <skitt@debian.org>
 
 --- a/bfd/peXXigen.c
 +++ b/bfd/peXXigen.c
-@@ -70,6 +70,9 @@
+@@ -77,6 +77,9 @@
  #include <wctype.h>
  #endif
  
@@ -21,20 +21,20 @@ Author: Stephen Kitt <skitt@debian.org>
  /* NOTE: it's strange to be including an architecture specific header
     in what's supposed to be general (to PE/PEI) code.  However, that's
     where the definitions are, and they don't vary per architecture
-@@ -879,10 +882,38 @@
+@@ -876,9 +879,36 @@
  
    /* Use a real timestamp by default, unless the no-insert-timestamp
       option was chosen.  */
--  if ((pe_data (abfd)->insert_timestamp))
+-  if ((pe_data (abfd)->timestamp) == -1)
 -    H_PUT_32 (abfd, time (0), filehdr_out->f_timdat);
 -  else
-+  if (pe_data (abfd)->insert_timestamp) {
++  if ((pe_data (abfd)->timestamp) == -1) {
 +    time_t now;
 +    char *source_date_epoch;
 +    unsigned long long epoch;
 +    char *endptr;
 +
-+    now = time(NULL);
++    now = time (NULL);
 +    source_date_epoch = getenv("SOURCE_DATE_EPOCH");
 +    if (source_date_epoch) {
 +      errno = 0;
@@ -57,30 +57,29 @@ Author: Stephen Kitt <skitt@debian.org>
 +      }
 +    }
 +    H_PUT_32 (abfd, now, filehdr_out->f_timdat);
-+  } else {
-     H_PUT_32 (abfd, 0, filehdr_out->f_timdat);
-+  }
++  } else
+     H_PUT_32 (abfd, pe_data (abfd)->timestamp, filehdr_out->f_timdat);
  
    PUT_FILEHDR_SYMPTR (abfd, filehdr_in->f_symptr,
- 		      filehdr_out->f_symptr);
 --- a/ld/pe-dll.c
 +++ b/ld/pe-dll.c
-@@ -26,6 +26,8 @@
- #include "filenames.h"
+@@ -27,6 +27,8 @@
  #include "safe-ctype.h"
+ #include "ctf-api.h"
  
 +#include <errno.h>
 +#include <limits.h>
  #include <time.h>
  
  #include "ld.h"
-@@ -1202,8 +1204,36 @@
+@@ -1218,9 +1220,36 @@
  
    memset (edata_d, 0, edata_sz);
  
--  if (pe_data (abfd)->insert_timestamp)
+-  if (pe_data (abfd)->timestamp == -1)
 -    H_PUT_32 (abfd, time (0), edata_d + 4);
-+  if (pe_data (abfd)->insert_timestamp) {
+-  else
++  if (pe_data (abfd)->timestamp == -1) {
 +    time_t now;
 +    char *source_date_epoch;
 +    unsigned long long epoch;
@@ -109,13 +108,13 @@ Author: Stephen Kitt <skitt@debian.org>
 +      }
 +    }
 +    H_PUT_32 (abfd, now, edata_d + 4);
-+  }
++  } else
+     H_PUT_32 (abfd, pe_data (abfd)->timestamp, edata_d + 4);
  
    if (pe_def_file->version_major != -1)
-     {
 --- a/ld/emultempl/pe.em
 +++ b/ld/emultempl/pe.em
-@@ -303,7 +303,7 @@
+@@ -304,7 +304,7 @@
       OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
      {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
      {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE},
@@ -126,7 +125,7 @@ Author: Stephen Kitt <skitt@debian.org>
      /* getopt allows abbreviations, so we do this to stop it
 --- a/ld/emultempl/pep.em
 +++ b/ld/emultempl/pep.em
-@@ -321,7 +321,7 @@
+@@ -323,7 +323,7 @@
      {"no-bind", no_argument, NULL, OPTION_NO_BIND},
      {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
      {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
@@ -134,4 +133,4 @@ Author: Stephen Kitt <skitt@debian.org>
 +    {"insert-timestamp", optional_argument, NULL, OPTION_INSERT_TIMESTAMP},
      {"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP},
      {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
-     {NULL, no_argument, NULL, 0}
+     {"enable-reloc-section", no_argument, NULL, OPTION_ENABLE_RELOC_SECTION},
diff --git a/gnu/packages/patches/coreutils-gnulib-tests.patch b/gnu/packages/patches/coreutils-gnulib-tests.patch
new file mode 100644
index 0000000000..7142401202
--- /dev/null
+++ b/gnu/packages/patches/coreutils-gnulib-tests.patch
@@ -0,0 +1,45 @@
+Fix Gnulib test failures showing up on ARMv7:
+
+  https://issues.guix.gnu.org/49459
+
+This is a backport of this Gnulib commit:
+
+  commit 175e0bc72808d564074c4adcc72aeadb74adfcc6
+  Author: Paul Eggert <eggert@cs.ucla.edu>
+  Date:   Thu Aug 27 17:52:58 2020 -0700
+
+      perror, strerror_r: remove unportable tests
+
+      Problem reported by Florian Weimer in:
+      https://lists.gnu.org/r/bug-gnulib/2020-08/msg00220.html
+      * tests/test-perror2.c (main):
+      * tests/test-strerror_r.c (main): Omit unportable tests.
+
+diff --git a/tests/test-perror2.c b/tests/test-perror2.c
+index 1d14eda7be..c6214dd25c 100644
+--- a/gnulib-tests/test-perror2.c
++++ b/gnulib-tests/test-perror2.c
+@@ -79,9 +79,6 @@ main (void)
+     errno = -5;
+     perror ("");
+     ASSERT (!ferror (stderr));
+-    ASSERT (msg1 == msg2 || msg1 == msg4 || STREQ (msg1, str1));
+-    ASSERT (msg2 == msg4 || STREQ (msg2, str2));
+-    ASSERT (msg3 == msg4 || STREQ (msg3, str3));
+     ASSERT (STREQ (msg4, str4));
+ 
+     free (str1);
+diff --git a/tests/test-strerror_r.c b/tests/test-strerror_r.c
+index b11d6fd9f6..c1dbcf837b 100644
+--- a/gnulib-tests/test-strerror_r.c
++++ b/gnulib-tests/test-strerror_r.c
+@@ -165,9 +165,6 @@ main (void)
+ 
+     strerror_r (EACCES, buf, sizeof buf);
+     strerror_r (-5, buf, sizeof buf);
+-    ASSERT (msg1 == msg2 || msg1 == msg4 || STREQ (msg1, str1));
+-    ASSERT (msg2 == msg4 || STREQ (msg2, str2));
+-    ASSERT (msg3 == msg4 || STREQ (msg3, str3));
+     ASSERT (STREQ (msg4, str4));
+ 
+     free (str1);
diff --git a/gnu/packages/patches/cups-CVE-2020-10001.patch b/gnu/packages/patches/cups-CVE-2020-10001.patch
deleted file mode 100644
index 1b16c7d97c..0000000000
--- a/gnu/packages/patches/cups-CVE-2020-10001.patch
+++ /dev/null
@@ -1,47 +0,0 @@
-From efbea1742bd30f842fbbfb87a473e5c84f4162f9 Mon Sep 17 00:00:00 2001
-From: Michael R Sweet <msweet@msweet.org>
-Date: Mon, 1 Feb 2021 15:02:32 -0500
-Subject: [PATCH] Fix a buffer (read) overflow in ippReadIO (CVE-2020-10001)
-
----
-
-diff --git a/cups/ipp.c b/cups/ipp.c
-index 3d529346c..adbb26fba 100644
---- a/cups/ipp.c
-+++ b/cups/ipp.c
-@@ -2866,7 +2866,8 @@ ippReadIO(void       *src,		/* I - Data source */
-   unsigned char		*buffer,	/* Data buffer */
- 			string[IPP_MAX_TEXT],
- 					/* Small string buffer */
--			*bufptr;	/* Pointer into buffer */
-+			*bufptr,	/* Pointer into buffer */
-+			*bufend;	/* End of buffer */
-   ipp_attribute_t	*attr;		/* Current attribute */
-   ipp_tag_t		tag;		/* Current tag */
-   ipp_tag_t		value_tag;	/* Current value tag */
-@@ -3441,6 +3442,7 @@ ippReadIO(void       *src,		/* I - Data source */
- 		}
- 
-                 bufptr = buffer;
-+                bufend = buffer + n;
- 
- 	       /*
- 	        * text-with-language and name-with-language are composite
-@@ -3454,7 +3456,7 @@ ippReadIO(void       *src,		/* I - Data source */
- 
- 		n = (bufptr[0] << 8) | bufptr[1];
- 
--		if ((bufptr + 2 + n) >= (buffer + IPP_BUF_SIZE) || n >= (int)sizeof(string))
-+		if ((bufptr + 2 + n + 2) > bufend || n >= (int)sizeof(string))
- 		{
- 		  _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
- 		                _("IPP language length overflows value."), 1);
-@@ -3481,7 +3483,7 @@ ippReadIO(void       *src,		/* I - Data source */
-                 bufptr += 2 + n;
- 		n = (bufptr[0] << 8) | bufptr[1];
- 
--		if ((bufptr + 2 + n) >= (buffer + IPP_BUF_SIZE))
-+		if ((bufptr + 2 + n) > bufend)
- 		{
- 		  _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
- 		                _("IPP string length overflows value."), 1);
diff --git a/gnu/packages/patches/curl-7.76-use-ssl-cert-env.patch b/gnu/packages/patches/curl-7.76-use-ssl-cert-env.patch
deleted file mode 100644
index 24be6e31d9..0000000000
--- a/gnu/packages/patches/curl-7.76-use-ssl-cert-env.patch
+++ /dev/null
@@ -1,64 +0,0 @@
-Make libcurl respect the SSL_CERT_{DIR,FILE} variables by default. The variables
-are fetched during initialization to preserve thread-safety (curl_global_init(3)
-must be called when no other threads exist).
-
-This fixes network functionality in rust:cargo, and probably removes the need
-for other future workarounds.
-===================================================================
---- curl-7.66.0.orig/lib/easy.c	2020-01-02 15:43:11.883921171 +0100
-+++ curl-7.66.0/lib/easy.c	2020-01-02 16:18:54.691882797 +0100
-@@ -134,6 +134,9 @@
- #  pragma warning(default:4232) /* MSVC extension, dllimport identity */
- #endif
- 
-+char * Curl_ssl_cert_dir = NULL;
-+char * Curl_ssl_cert_file = NULL;
-+
- /**
-  * curl_global_init() globally initializes curl given a bitwise set of the
-  * different features of what to initialize.
-@@ -155,6 +158,9 @@
- #endif
-   }
- 
-+  Curl_ssl_cert_dir = curl_getenv("SSL_CERT_DIR");
-+  Curl_ssl_cert_file = curl_getenv("SSL_CERT_FILE");
-+
-   if(!Curl_ssl_init()) {
-     DEBUGF(fprintf(stderr, "Error: Curl_ssl_init failed\n"));
-     return CURLE_FAILED_INIT;
-@@ -260,6 +266,9 @@
-   Curl_ssl_cleanup();
-   Curl_resolver_global_cleanup();
- 
-+  free(Curl_ssl_cert_dir);
-+  free(Curl_ssl_cert_file);
-+
- #ifdef WIN32
-   Curl_win32_cleanup(init_flags);
- #endif
-diff -ur curl-7.66.0.orig/lib/url.c curl-7.66.0/lib/url.c
---- curl-7.66.0.orig/lib/url.c	2020-01-02 15:43:11.883921171 +0100
-+++ curl-7.66.0/lib/url.c	2020-01-02 16:21:11.563880346 +0100
-@@ -524,6 +524,21 @@
-     if(result)
-       return result;
- #endif
-+    extern char * Curl_ssl_cert_dir;
-+    extern char * Curl_ssl_cert_file;
-+    if(Curl_ssl_cert_dir) {
-+        if(result = Curl_setstropt(&set->str[STRING_SSL_CAPATH], Curl_ssl_cert_dir))
-+            return result;
-+        if(result = Curl_setstropt(&set->str[STRING_SSL_CAPATH_PROXY], Curl_ssl_cert_dir))
-+            return result;
-+    }
-+
-+    if(Curl_ssl_cert_file) {
-+        if(result = Curl_setstropt(&set->str[STRING_SSL_CAFILE], Curl_ssl_cert_file))
-+            return result;
-+        if(result = Curl_setstropt(&set->str[STRING_SSL_CAFILE_PROXY], Curl_ssl_cert_file))
-+            return result;
-+    }
-   }
- 
-   set->wildcard_enabled = FALSE;
diff --git a/gnu/packages/patches/curl-use-ssl-cert-env.patch b/gnu/packages/patches/curl-use-ssl-cert-env.patch
index c8e80b4445..24be6e31d9 100644
--- a/gnu/packages/patches/curl-use-ssl-cert-env.patch
+++ b/gnu/packages/patches/curl-use-ssl-cert-env.patch
@@ -47,14 +47,14 @@ diff -ur curl-7.66.0.orig/lib/url.c curl-7.66.0/lib/url.c
 +    extern char * Curl_ssl_cert_dir;
 +    extern char * Curl_ssl_cert_file;
 +    if(Curl_ssl_cert_dir) {
-+        if(result = Curl_setstropt(&set->str[STRING_SSL_CAPATH_ORIG], Curl_ssl_cert_dir))
++        if(result = Curl_setstropt(&set->str[STRING_SSL_CAPATH], Curl_ssl_cert_dir))
 +            return result;
 +        if(result = Curl_setstropt(&set->str[STRING_SSL_CAPATH_PROXY], Curl_ssl_cert_dir))
 +            return result;
 +    }
 +
 +    if(Curl_ssl_cert_file) {
-+        if(result = Curl_setstropt(&set->str[STRING_SSL_CAFILE_ORIG], Curl_ssl_cert_file))
++        if(result = Curl_setstropt(&set->str[STRING_SSL_CAFILE], Curl_ssl_cert_file))
 +            return result;
 +        if(result = Curl_setstropt(&set->str[STRING_SSL_CAFILE_PROXY], Curl_ssl_cert_file))
 +            return result;
diff --git a/gnu/packages/patches/dbus-CVE-2020-12049.patch b/gnu/packages/patches/dbus-CVE-2020-12049.patch
deleted file mode 100644
index 71280144a1..0000000000
--- a/gnu/packages/patches/dbus-CVE-2020-12049.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-Fix CVE-2020-12049:
-
-https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12049
-https://lists.freedesktop.org/archives/ftp-release/2020-June/000753.html
-
-Taken from upstream:
-
-https://gitlab.freedesktop.org/dbus/dbus/-/commit/272d484283883fa9ff95b69d924fff6cd34842f5
-
-diff --git a/dbus/dbus-sysdeps-unix.c b/dbus/dbus-sysdeps-unix.c
---- a/dbus/dbus-sysdeps-unix.c
-+++ b/dbus/dbus-sysdeps-unix.c
-@@ -435,18 +435,6 @@ _dbus_read_socket_with_unix_fds (DBusSocket        fd,
-       struct cmsghdr *cm;
-       dbus_bool_t found = FALSE;
- 
--      if (m.msg_flags & MSG_CTRUNC)
--        {
--          /* Hmm, apparently the control data was truncated. The bad
--             thing is that we might have completely lost a couple of fds
--             without chance to recover them. Hence let's treat this as a
--             serious error. */
--
--          errno = ENOSPC;
--          _dbus_string_set_length (buffer, start);
--          return -1;
--        }
--
-       for (cm = CMSG_FIRSTHDR(&m); cm; cm = CMSG_NXTHDR(&m, cm))
-         if (cm->cmsg_level == SOL_SOCKET && cm->cmsg_type == SCM_RIGHTS)
-           {
-@@ -501,6 +489,26 @@ _dbus_read_socket_with_unix_fds (DBusSocket        fd,
-       if (!found)
-         *n_fds = 0;
- 
-+      if (m.msg_flags & MSG_CTRUNC)
-+        {
-+          unsigned int i;
-+
-+          /* Hmm, apparently the control data was truncated. The bad
-+             thing is that we might have completely lost a couple of fds
-+             without chance to recover them. Hence let's treat this as a
-+             serious error. */
-+
-+          /* We still need to close whatever fds we *did* receive,
-+           * otherwise they'll never get closed. (CVE-2020-12049) */
-+          for (i = 0; i < *n_fds; i++)
-+            close (fds[i]);
-+
-+          *n_fds = 0;
-+          errno = ENOSPC;
-+          _dbus_string_set_length (buffer, start);
-+          return -1;
-+        }
-+
-       /* put length back (doesn't actually realloc) */
-       _dbus_string_set_length (buffer, start + bytes_read);
- 
diff --git a/gnu/packages/patches/docbook-xsl-nonrecursive-string-subst.patch b/gnu/packages/patches/docbook-xsl-nonrecursive-string-subst.patch
index 4199dd18a5..fed4b76429 100644
--- a/gnu/packages/patches/docbook-xsl-nonrecursive-string-subst.patch
+++ b/gnu/packages/patches/docbook-xsl-nonrecursive-string-subst.patch
@@ -5,7 +5,7 @@ https://bugzilla.samba.org/show_bug.cgi?id=9515
 https://bugzilla.gnome.org/show_bug.cgi?id=736077 (for xsltproc)
 
 Patch copied from Debian:
-https://anonscm.debian.org/cgit/collab-maint/docbook-xsl.git/tree/debian/patches/765567_non-recursive_string_subst.patch
+https://salsa.debian.org/debian/docbook-xsl/-/blob/master/debian/patches/765567_non-recursive_string_subst.patch
 
 Description: use EXSLT "replace" function when available
  A recursive implementation  of string.subst is problematic,
@@ -15,11 +15,12 @@ Bug-Debian: https://bugs.debian.org/750593
 
 --- a/lib/lib.xsl
 +++ b/lib/lib.xsl
-@@ -10,7 +10,10 @@
+@@ -6,7 +6,11 @@
+ 
       This module implements DTD-independent functions
  
-      ******************************************************************** -->
--<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
+-     ******************************************************************** --><xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
++     ******************************************************************** -->
 +<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 +                xmlns:str="http://exslt.org/strings"
 +                exclude-result-prefixes="str"
@@ -27,7 +28,7 @@ Bug-Debian: https://bugs.debian.org/750593
  
  <xsl:template name="dot.count">
    <!-- Returns the number of "." characters in a string -->
-@@ -56,6 +59,9 @@
+@@ -52,6 +56,9 @@
    <xsl:param name="replacement"/>
  
    <xsl:choose>
diff --git a/gnu/packages/patches/docbook-xsl-support-old-url.patch b/gnu/packages/patches/docbook-xsl-support-old-url.patch
new file mode 100644
index 0000000000..5b7dda458f
--- /dev/null
+++ b/gnu/packages/patches/docbook-xsl-support-old-url.patch
@@ -0,0 +1,17 @@
+Docbook 1.79.2 makes very few changes apart from changing the canonical URL
+to cdn.docbook.org.  This patch adds support for the previous URL to avoid
+breaking packages that still use that.
+
+Adapted from Debian:
+https://salsa.debian.org/debian/docbook-xsl/-/blob/master/debian/patches/0005-catalog.xml-Compatibility-with-1.79.1-or-earlier.patch
+
+--- a/catalog.xml
++++ b/catalog.xml
+@@ -5,4 +5,7 @@
+   <rewriteSystem systemIdStartString="http://cdn.docbook.org/release/xsl/current/" rewritePrefix="./"/>
+   <rewriteURI uriStartString="http://cdn.docbook.org/release/xsl/1.79.2/" rewritePrefix="./"/>
+   <rewriteSystem systemIdStartString="http://cdn.docbook.org/release/xsl/1.79.2/" rewritePrefix="./"/>
++  <!-- Also support old URI of v1.79.1 or earlier -->
++  <rewriteURI uriStartString="http://docbook.sourceforge.net/release/xsl/current/" rewritePrefix="./"/>
++  <rewriteSystem systemIdStartString="http://docbook.sourceforge.net/release/xsl/current/" rewritePrefix="./"/>
+ </catalog>
diff --git a/gnu/packages/patches/doxygen-1.8.17-runtests.patch b/gnu/packages/patches/doxygen-1.8.17-runtests.patch
deleted file mode 100644
index 0340c72448..0000000000
--- a/gnu/packages/patches/doxygen-1.8.17-runtests.patch
+++ /dev/null
@@ -1,73 +0,0 @@
-1.8.17 was released with a broken test runner.
-
-https://github.com/doxygen/doxygen/issues/7464
-
-Taken from upstream:
-https://github.com/doxygen/doxygen/commit/cd9dee013dc749a10bbe019c350e0e62b6635795
-
-diff --git a/testing/runtests.py b/testing/runtests.py
-index a4118b865..10fe50214 100755
---- a/testing/runtests.py
-+++ b/testing/runtests.py
-@@ -3,6 +3,7 @@
- from __future__ import print_function
- import argparse, glob, itertools, re, shutil, os, sys
- import subprocess
-+import shlex
- 
- config_reg = re.compile('.*\/\/\s*(?P<name>\S+):\s*(?P<value>.*)$')
- 
-@@ -28,10 +29,10 @@ def xpopen(cmd, cmd1="",encoding='utf-8-sig', getStderr=False):
- 		return os.popen(cmd).read() # Python 2 without encoding
- 	else:
- 		if (getStderr):
--			proc = subprocess.run(cmd1,encoding=encoding,capture_output=True) # Python 3 with encoding
--			return proc.stderr
-+			proc = subprocess.Popen(shlex.split(cmd1),stdout=subprocess.PIPE,stderr=subprocess.PIPE,encoding=encoding) # Python 3 with encoding
-+			return proc.stderr.read()
- 		else:
--			proc = subprocess.Popen(cmd,stdout=subprocess.PIPE,stderr=subprocess.PIPE,encoding=encoding) # Python 3 with encoding
-+			proc = subprocess.Popen(shlex.split(cmd),stdout=subprocess.PIPE,stderr=subprocess.PIPE,encoding=encoding) # Python 3 with encoding
- 			return proc.stdout.read()
- 
- class Tester:
-@@ -137,7 +138,7 @@ def prepare_test(self):
- 				print('GENERATE_DOCBOOK=NO', file=f)
- 			if (self.args.xhtml):
- 				print('GENERATE_HTML=YES', file=f)
--			# HTML_OUTPUT can also be set locally
-+			# HTML_OUTPUT can also have been set locally
- 			print('HTML_OUTPUT=%s/html' % self.test_out, file=f)
- 			print('HTML_FILE_EXTENSION=.xhtml', file=f)
- 			if (self.args.pdf):
-@@ -184,7 +185,7 @@ def update_test(self,testmgr):
- 					print('Non-existing file %s after \'check:\' statement' % check_file)
- 					return
- 				# convert output to canonical form
--				data = xpopen('%s --format --noblanks --nowarning %s' % (self.args.xmllint,check_file)).read()
-+				data = xpopen('%s --format --noblanks --nowarning %s' % (self.args.xmllint,check_file))
- 				if data:
- 					# strip version
- 					data = re.sub(r'xsd" version="[0-9.-]+"','xsd" version=""',data).rstrip('\n')
-@@ -326,7 +327,7 @@ def perform_test(self,testmgr):
- 			tests.append(glob.glob('%s/*.xml' % (docbook_output)))
- 			tests.append(glob.glob('%s/*/*/*.xml' % (docbook_output)))
- 			tests = ' '.join(list(itertools.chain.from_iterable(tests))).replace(self.args.outputdir +'/','').replace('\\','/')
--			exe_string = '%s --nonet --postvalid %s' % (self.args.xmllint,tests)
-+			exe_string = '%s --noout --nonet --postvalid %s' % (self.args.xmllint,tests)
- 			exe_string1 = exe_string
- 			exe_string += ' %s' % (redirx)
- 			exe_string += ' %s more "%s/temp"' % (separ,docbook_output)
-@@ -346,7 +347,11 @@ def perform_test(self,testmgr):
- 				redirx=' 2> %s/temp >nul:'%html_output
- 			else:
- 				redirx='2>%s/temp >/dev/null'%html_output
--			exe_string = '%s --path dtd --nonet --postvalid %s/*xhtml' % (self.args.xmllint,html_output)
-+			check_file = []
-+			check_file.append(glob.glob('%s/*.xhtml' % (html_output)))
-+			check_file.append(glob.glob('%s/*/*/*.xhtml' % (html_output)))
-+			check_file = ' '.join(list(itertools.chain.from_iterable(check_file))).replace(self.args.outputdir +'/','').replace('\\','/')
-+			exe_string = '%s --noout --path dtd --nonet --postvalid %s' % (self.args.xmllint,check_file)
- 			exe_string1 = exe_string
- 			exe_string += ' %s' % (redirx)
- 			exe_string += ' %s more "%s/temp"' % (separ,html_output)
diff --git a/gnu/packages/patches/doxygen-test.patch b/gnu/packages/patches/doxygen-test.patch
deleted file mode 100644
index 1c0d4eb946..0000000000
--- a/gnu/packages/patches/doxygen-test.patch
+++ /dev/null
@@ -1,60 +0,0 @@
-Modify the expected outcome of test 012 so that it passes when bibtex is
-not in the path, as we do not wish to add texlive as an input just for this
-test.
-
-diff -u -r doxygen-1.8.7.orig/testing/012/citelist.xml doxygen-1.8.7/testing/012/citelist.xml
---- doxygen-1.8.7.orig/testing/012/citelist.xml	2014-04-24 23:43:34.000000000 +0200
-+++ doxygen-1.8.7/testing/012/citelist.xml	2014-04-24 23:49:43.000000000 +0200
-@@ -6,38 +6,6 @@
-     <briefdescription>
-     </briefdescription>
-     <detaileddescription>
--      <para>
--        <variablelist>
--          <varlistentry>
--            <term><anchor id="citelist_1CITEREF_Be09"/>[1]</term>
--          </varlistentry>
--          <listitem>
--            <para>P.<nonbreakablespace/>Belotti. <ulink url="http://doi.org/10.1007/978-1-4614-1927-3_5">Disjunctive cuts for non-convex MINLP</ulink>. In <ulink url="#CITEREF_LeLe12">Lee and Leyffer</ulink> <ulink url="#CITEREF_LeLe12">[4]</ulink>, pages 117<ndash/>144.</para>
--            <para/>
--          </listitem>
--          <varlistentry>
--            <term><anchor id="citelist_1CITEREF_BertholdHeinzVigerske2009"/>[2]</term>
--          </varlistentry>
--          <listitem>
--            <para>T.<nonbreakablespace/>Berthold, S.<nonbreakablespace/>Heinz, and S.<nonbreakablespace/>Vigerske. <ulink url="http://doi.org/10.1007/978-1-4614-1927-3_15">Extending a CIP framework to solve MIQCPs</ulink>. In <ulink url="#CITEREF_LeLe12">Lee and Leyffer</ulink> <ulink url="#CITEREF_LeLe12">[4]</ulink>, pages 427<ndash/>444.</para>
--            <para/>
--          </listitem>
--          <varlistentry>
--            <term><anchor id="citelist_1CITEREF_knuth79"/>[3]</term>
--          </varlistentry>
--          <listitem>
--            <para>Donald<nonbreakablespace/>E. Knuth. <emphasis>Tex and Metafont, New Directions in Typesetting</emphasis>. American Mathematical Society and Digital Press, Stanford, 1979.</para>
--            <para/>
--          </listitem>
--          <varlistentry>
--            <term><anchor id="citelist_1CITEREF_LeLe12"/>[4]</term>
--          </varlistentry>
--          <listitem>
--            <para>Jon Lee and Sven Leyffer, editors. <ulink url="http://doi.org/10.1007/978-1-4614-1927-3"><emphasis>Mixed Integer Nonlinear Programming</emphasis></ulink>, volume 154 of <emphasis>The IMA Volumes in Mathematics and its Applications</emphasis>. Springer, 2012.</para>
--            <para/>
--          </listitem>
--        </variablelist>
--      </para>
-     </detaileddescription>
-   </compounddef>
- </doxygen>
-diff -u -r doxygen-1.8.7.orig/testing/012/indexpage.xml doxygen-1.8.7/testing/012/indexpage.xml
---- doxygen-1.8.7.orig/testing/012/indexpage.xml	2014-04-24 23:43:34.000000000 +0200
-+++ doxygen-1.8.7/testing/012/indexpage.xml	2014-04-24 23:44:05.000000000 +0200
-@@ -6,8 +6,8 @@
-     <briefdescription>
-     </briefdescription>
-     <detaileddescription>
--      <para>See <ref refid="citelist_1CITEREF_knuth79" kindref="member">[3]</ref> for more info.</para>
--      <para>Other references with cross references see <ref refid="citelist_1CITEREF_Be09" kindref="member">[1]</ref> and <ref refid="citelist_1CITEREF_BertholdHeinzVigerske2009" kindref="member">[2]</ref> for more info. </para>
-+      <para>See knuth79 for more info.</para>
-+      <para>Other references with cross references see Be09 and BertholdHeinzVigerske2009 for more info. </para>
-     </detaileddescription>
-   </compounddef>
- </doxygen>
diff --git a/gnu/packages/patches/findutils-test-rwlock-threads.patch b/gnu/packages/patches/findutils-test-rwlock-threads.patch
deleted file mode 100644
index 3062577c21..0000000000
--- a/gnu/packages/patches/findutils-test-rwlock-threads.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-Skip "test-rwlock1" when multithreading is disabled, which is the case
-during bootstrapping on architectures not supported by GNU Mes.
-
-Taken from upstream gnulib:
-https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=fdff8bd09a7f053381f8bdb107ab5280b7c95959
-
-diff --git a/gnulib-tests/test-rwlock1.c b/gnulib-tests/test-rwlock1.c
---- a/gnulib-tests/test-rwlock1.c
-+++ b/gnulib-tests/test-rwlock1.c
-@@ -21,6 +21,8 @@
- 
- #include <config.h>
- 
-+#if USE_ISOC_THREADS || USE_POSIX_THREADS || USE_ISOC_AND_POSIX_THREADS || USE_WINDOWS_THREADS
-+
- #include "glthread/lock.h"
- 
- #include <errno.h>
-@@ -151,3 +153,18 @@ main ()
-       sleep (1);
-     }
- }
-+
-+#else
-+
-+/* No multithreading available.  */
-+
-+#include <stdio.h>
-+
-+int
-+main ()
-+{
-+  fputs ("Skipping test: multithreading not enabled\n", stderr);
-+  return 77;
-+}
-+
-+#endif
-
diff --git a/gnu/packages/patches/fontconfig-cache-ignore-mtime.patch b/gnu/packages/patches/fontconfig-cache-ignore-mtime.patch
new file mode 100644
index 0000000000..b6e942ee10
--- /dev/null
+++ b/gnu/packages/patches/fontconfig-cache-ignore-mtime.patch
@@ -0,0 +1,15 @@
+Pretend that stat's mtime is broken, so that the fontconfig cache does not
+depend upon modification time to determine if a cache is stale.
+
+diff --git a/src/fcstat.c b/src/fcstat.c
+index 5a2bd7c..d603a96 100644
+--- a/src/fcstat.c
++++ b/src/fcstat.c
+@@ -431,6 +431,7 @@ FcIsFsMmapSafe (int fd)
+ FcBool
+ FcIsFsMtimeBroken (const FcChar8 *dir)
+ {
++    return FcTrue;
+     int fd = FcOpen ((const char *) dir, O_RDONLY);
+ 
+     if (fd != -1)
diff --git a/gnu/packages/patches/fontconfig-hurd-path-max.patch b/gnu/packages/patches/fontconfig-hurd-path-max.patch
deleted file mode 100644
index f804e6801f..0000000000
--- a/gnu/packages/patches/fontconfig-hurd-path-max.patch
+++ /dev/null
@@ -1,17 +0,0 @@
-Avoid usage of PATH_MAX.
-
-Taken from https://salsa.debian.org/freedesktop-team/fontconfig/-/blob/master/debian/patches/path_max.patch
-
-Index: fontconfig-2.13.1/src/fccfg.c
-===================================================================
---- fontconfig-2.13.1.orig/src/fccfg.c
-+++ fontconfig-2.13.1/src/fccfg.c
-@@ -2231,7 +2231,7 @@ FcConfigRealFilename (FcConfig		*config,
- 
-     if (n)
-     {
--	FcChar8 buf[PATH_MAX];
-+	FcChar8 buf[FC_PATH_MAX];
- 	ssize_t len;
- 
- 	if (sysroot)
diff --git a/gnu/packages/patches/freeglut-gcc-compat.patch b/gnu/packages/patches/freeglut-gcc-compat.patch
new file mode 100644
index 0000000000..126bbd89f4
--- /dev/null
+++ b/gnu/packages/patches/freeglut-gcc-compat.patch
@@ -0,0 +1,53 @@
+Fix build failure with GCC 10.
+
+Taken from upstream:
+https://github.com/dcnieho/FreeGLUT/commit/b9998bbc1e1c329f6bf69c24606a2be7a4973b8c
+
+diff --git a/src/fg_gl2.c b/src/fg_gl2.c
+--- a/src/fg_gl2.c
++++ b/src/fg_gl2.c
+@@ -27,6 +27,20 @@
+ #include "fg_internal.h"
+ #include "fg_gl2.h"
+ 
++#ifndef GL_ES_VERSION_2_0
++/* GLES2 has the corresponding entry points built-in, and these fgh-prefixed
++ * names are defined in fg_gl2.h header to reference them, for any other case,
++ * define them as function pointers here.
++ */
++FGH_PFNGLGENBUFFERSPROC fghGenBuffers;
++FGH_PFNGLDELETEBUFFERSPROC fghDeleteBuffers;
++FGH_PFNGLBINDBUFFERPROC fghBindBuffer;
++FGH_PFNGLBUFFERDATAPROC fghBufferData;
++FGH_PFNGLENABLEVERTEXATTRIBARRAYPROC fghEnableVertexAttribArray;
++FGH_PFNGLDISABLEVERTEXATTRIBARRAYPROC fghDisableVertexAttribArray;
++FGH_PFNGLVERTEXATTRIBPOINTERPROC fghVertexAttribPointer;
++#endif
++
+ void FGAPIENTRY glutSetVertexAttribCoord3(GLint attrib) {
+   if (fgStructure.CurrentWindow != NULL)
+     fgStructure.CurrentWindow->Window.attribute_v_coord = attrib;
+diff --git a/src/fg_gl2.h b/src/fg_gl2.h
+--- a/src/fg_gl2.h
++++ b/src/fg_gl2.h
+@@ -67,13 +67,13 @@ typedef void (APIENTRY *FGH_PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index);
+ typedef void (APIENTRY *FGH_PFNGLDISABLEVERTEXATTRIBARRAYPROC) (GLuint);
+ typedef void (APIENTRY *FGH_PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
+ 
+-FGH_PFNGLGENBUFFERSPROC fghGenBuffers;
+-FGH_PFNGLDELETEBUFFERSPROC fghDeleteBuffers;
+-FGH_PFNGLBINDBUFFERPROC fghBindBuffer;
+-FGH_PFNGLBUFFERDATAPROC fghBufferData;
+-FGH_PFNGLENABLEVERTEXATTRIBARRAYPROC fghEnableVertexAttribArray;
+-FGH_PFNGLDISABLEVERTEXATTRIBARRAYPROC fghDisableVertexAttribArray;
+-FGH_PFNGLVERTEXATTRIBPOINTERPROC fghVertexAttribPointer;
++extern FGH_PFNGLGENBUFFERSPROC fghGenBuffers;
++extern FGH_PFNGLDELETEBUFFERSPROC fghDeleteBuffers;
++extern FGH_PFNGLBINDBUFFERPROC fghBindBuffer;
++extern FGH_PFNGLBUFFERDATAPROC fghBufferData;
++extern FGH_PFNGLENABLEVERTEXATTRIBARRAYPROC fghEnableVertexAttribArray;
++extern FGH_PFNGLDISABLEVERTEXATTRIBARRAYPROC fghDisableVertexAttribArray;
++extern FGH_PFNGLVERTEXATTRIBPOINTERPROC fghVertexAttribPointer;
+ 
+ #    endif
+ 
diff --git a/gnu/packages/patches/ganeti-preserve-PYTHONPATH.patch b/gnu/packages/patches/ganeti-preserve-PYTHONPATH.patch
deleted file mode 100644
index 1358e30633..0000000000
--- a/gnu/packages/patches/ganeti-preserve-PYTHONPATH.patch
+++ /dev/null
@@ -1,21 +0,0 @@
-Do not override PYTHONPATH when calling Python code from the Haskell
-daemons.  This is necessary because the Python library dependencies are
-only available through PYTHONPATH.
-
-diff --git a/src/Ganeti/Query/Exec.hs b/src/Ganeti/Query/Exec.hs
---- a/src/Ganeti/Query/Exec.hs
-+++ b/src/Ganeti/Query/Exec.hs
-@@ -99,12 +99,10 @@ spawnJobProcess jid = withErrorLogAt CRITICAL (show jid) $
-   do
-     use_debug <- isDebugMode
-     env_ <- (M.toList . M.insert "GNT_DEBUG" (if use_debug then "1" else "0")
--            . M.insert "PYTHONPATH" AC.pythondir
-             . M.fromList)
-            `liftM` getEnvironment
-     execPy <- P.jqueueExecutorPy
-     logDebug $ "Executing " ++ AC.pythonPath ++ " " ++ execPy
--               ++ " with PYTHONPATH=" ++ AC.pythondir
- 
-     (master, child) <- pipeClient connectConfig
-     let (rh, wh) = clientToHandle child
-
diff --git a/gnu/packages/patches/gcc-10-cross-environment-variables.patch b/gnu/packages/patches/gcc-10-cross-environment-variables.patch
new file mode 100644
index 0000000000..414198657d
--- /dev/null
+++ b/gnu/packages/patches/gcc-10-cross-environment-variables.patch
@@ -0,0 +1,51 @@
+Search path environment variables for cross-compilers.  See the discussion
+at <http://gcc.gnu.org/ml/gcc/2013-02/msg00124.html>.
+
+Note: Touch 'C_INCLUDE_PATH' et al. rather than 'CPATH', as discussed
+at <http://bugs.gnu.org/22186>.
+
+diff --git a/gcc/gcc.c b/gcc/gcc.c
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -4474,7 +4474,7 @@ process_command (unsigned int decoded_options_count,
+     }
+ 
+   temp = env.get (LIBRARY_PATH_ENV);
+-  if (temp && *cross_compile == '0')
++  if (temp)
+     {
+       const char *startp, *endp;
+       char *nstore = (char *) alloca (strlen (temp) + 3);
+diff --git a/gcc/incpath.c b/gcc/incpath.c
+--- a/gcc/incpath.c
++++ b/gcc/incpath.c
+@@ -472,8 +472,8 @@ register_include_chains (cpp_reader *pfile, const char *sysroot,
+ 			 int stdinc, int cxx_stdinc, int verbose)
+ {
+   static const char *const lang_env_vars[] =
+-    { "C_INCLUDE_PATH", "CPLUS_INCLUDE_PATH",
+-      "OBJC_INCLUDE_PATH", "OBJCPLUS_INCLUDE_PATH" };
++    { "CROSS_C_INCLUDE_PATH", "CROSS_CPLUS_INCLUDE_PATH",
++      "CROSS_OBJC_INCLUDE_PATH", "CROSS_OBJCPLUS_INCLUDE_PATH" };
+   cpp_options *cpp_opts = cpp_get_options (pfile);
+   size_t idx = (cpp_opts->objc ? 2: 0);
+ 
+@@ -484,7 +484,7 @@ register_include_chains (cpp_reader *pfile, const char *sysroot,
+ 
+   /* CPATH and language-dependent environment variables may add to the
+      include chain.  */
+-  add_env_var_paths ("CPATH", INC_BRACKET);
++  add_env_var_paths ("CROSS_CPATH", INC_BRACKET);
+   add_env_var_paths (lang_env_vars[idx], INC_SYSTEM);
+ 
+   target_c_incpath.extra_pre_includes (sysroot, iprefix, stdinc);
+diff --git a/gcc/system.h b/gcc/system.h
+--- a/gcc/system.h
++++ b/gcc/system.h
+@@ -1244,4 +1244,6 @@ void gcc_stablesort (void *, size_t, size_t,
+    of the number.  */
+ #define PRsa(n) "%" #n PRIu64 "%c"
+ 
++#define LIBRARY_PATH_ENV "CROSS_LIBRARY_PATH"
++
+ #endif /* ! GCC_SYSTEM_H */
diff --git a/gnu/packages/patches/gcc-cross-gxx-include-dir.patch b/gnu/packages/patches/gcc-cross-gxx-include-dir.patch
new file mode 100644
index 0000000000..d6c4ffddc4
--- /dev/null
+++ b/gnu/packages/patches/gcc-cross-gxx-include-dir.patch
@@ -0,0 +1,73 @@
+This patch reverts upstream commit b4d3485e4fc1d:
+
+  https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=b4d3485e4fc1d029e620a59deb54b3f4f3f6b209
+
+Otherwise, GCC ends up searching the wrong target directory for cross-headers.
+
+diff --git a/gcc/configure b/gcc/configure
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -3689,11 +3689,6 @@ esac
+ fi
+ 
+ 
+-# If both --with-sysroot and --with-gxx-include-dir are passed, we interpolate
+-# the former in the latter and, upon success, compute gcc_gxx_include_dir as
+-# relative to the sysroot.
+-gcc_gxx_include_dir_add_sysroot=0
+-
+ # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO.
+ if test x${gcc_gxx_include_dir} = x; then
+   if test x${enable_version_specific_runtime_libs} = xyes; then
+@@ -3705,10 +3700,15 @@ if test x${gcc_gxx_include_dir} = x; then
+     fi
+     gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir"
+   fi
+-elif test "${with_sysroot+set}" = set; then
++fi
++
++gcc_gxx_include_dir_add_sysroot=0
++if test "${with_sysroot+set}" = set; then
+   gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'`
+   if test "${gcc_gxx_without_sysroot}"; then
+-    gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
++    if test x${with_sysroot} != x/; then
++      gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
++    fi
+     gcc_gxx_include_dir_add_sysroot=1
+   fi
+ fi
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index 715fcba0482..88136e232df 100644
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -204,11 +204,6 @@ no)	;;
+ *)	gcc_gxx_include_dir=$with_gxx_include_dir ;;
+ esac])
+ 
+-# If both --with-sysroot and --with-gxx-include-dir are passed, we interpolate
+-# the former in the latter and, upon success, compute gcc_gxx_include_dir as
+-# relative to the sysroot.
+-gcc_gxx_include_dir_add_sysroot=0
+-
+ # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO.
+ if test x${gcc_gxx_include_dir} = x; then
+   if test x${enable_version_specific_runtime_libs} = xyes; then
+@@ -220,10 +215,15 @@ if test x${gcc_gxx_include_dir} = x; then
+     fi
+     gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir"
+   fi
+-elif test "${with_sysroot+set}" = set; then
++fi
++
++gcc_gxx_include_dir_add_sysroot=0
++if test "${with_sysroot+set}" = set; then
+   gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'`
+   if test "${gcc_gxx_without_sysroot}"; then
+-    gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
++    if test x${with_sysroot} != x/; then
++      gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
++    fi
+     gcc_gxx_include_dir_add_sysroot=1
+   fi
+ fi
diff --git a/gnu/packages/patches/gd-Revert-fix-303-gdlib.pc-use-Requires-instead-of-Libs.patch b/gnu/packages/patches/gd-Revert-fix-303-gdlib.pc-use-Requires-instead-of-Libs.patch
new file mode 100644
index 0000000000..6329b129d3
--- /dev/null
+++ b/gnu/packages/patches/gd-Revert-fix-303-gdlib.pc-use-Requires-instead-of-Libs.patch
@@ -0,0 +1,179 @@
+From 9b31dfda73ee2d1b56b3f0dcfd3246c2faa592fe Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?L=C3=A9o=20Le=20Bouter?= <lle-bout@zaclys.net>
+Date: Sun, 28 Mar 2021 19:47:25 +0200
+Subject: [PATCH] Revert "fix #303: gdlib.pc: use Requires instead of Libs
+ (#537)"
+
+This reverts commit 28ecfe77c817aff8ce56422d3e4e8533a281bc76.
+---
+ CMakeLists.txt        | 12 ------------
+ config/gdlib.pc.cmake |  4 +---
+ config/gdlib.pc.in    |  4 +---
+ configure.ac          | 11 +----------
+ src/CMakeLists.txt    |  6 ------
+ 5 files changed, 3 insertions(+), 34 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 57cd95d..6bd0c73 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -53,8 +53,6 @@ SET (CMAKE_ARCHIVE_OUTPUT_DIRECTORY
+   "Single Directory for all static libraries."
+   )
+ 
+-SET(PKG_REQUIRES_PRIVATES "")
+-
+ if (USE_EXT_GD)
+ 	message("Using GD at: ${USE_EXT_GD}")
+ 	INCLUDE_DIRECTORIES(BEFORE ${GD_INCLUDE_DIR})
+@@ -170,13 +168,11 @@ else (USE_EXT_GD)
+ 		INCLUDE_DIRECTORIES(${FREETYPE_INCLUDE_DIRS})
+ 		SET(HAVE_FT2BUILD_H 1)
+ 		SET(HAVE_LIBFREETYPE 1)
+-		LIST(APPEND PKG_REQUIRES_PRIVATES freetype2)
+ 	ENDIF(FREETYPE_FOUND)
+ 
+ 	IF(ZLIB_FOUND)
+ 		INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIR})
+ 		SET(HAVE_LIBZ 1)
+-		LIST(APPEND PKG_REQUIRES_PRIVATES zlib)
+ 	ENDIF(ZLIB_FOUND)
+ 
+ 	IF(WEBP_FOUND)
+@@ -192,7 +188,6 @@ else (USE_EXT_GD)
+ 	IF(PNG_FOUND)
+ 		INCLUDE_DIRECTORIES(${PNG_INCLUDE_DIR})
+ 		SET(HAVE_LIBPNG 1)
+-		LIST(APPEND PKG_REQUIRES_PRIVATES libpng)
+ 	ENDIF(PNG_FOUND)
+ 
+ 	IF(ICONV_FOUND)
+@@ -209,25 +204,21 @@ else (USE_EXT_GD)
+ 	IF(XPM_FOUND)
+ 		INCLUDE_DIRECTORIES(${XPM_INCLUDE_DIR})
+ 		SET(HAVE_LIBXPM 1)
+-		LIST(APPEND PKG_REQUIRES_PRIVATES xpm)
+ 	ENDIF(XPM_FOUND)
+ 
+ 	IF(JPEG_FOUND)
+ 		INCLUDE_DIRECTORIES(${JPEG_INCLUDE_DIR})
+ 		SET(HAVE_LIBJPEG 1)
+-		LIST(APPEND PKG_REQUIRES_PRIVATES libjpeg)
+ 	ENDIF(JPEG_FOUND)
+ 
+ 	IF(TIFF_FOUND)
+ 		INCLUDE_DIRECTORIES(${TIFF_INCLUDE_DIR})
+ 		SET(HAVE_LIBTIFF 1)
+-		LIST(APPEND PKG_REQUIRES_PRIVATES libtiff-4)
+ 	ENDIF(TIFF_FOUND)
+ 
+ 	IF(FONTCONFIG_FOUND)
+ 		INCLUDE_DIRECTORIES(${FONTCONFIG_INCLUDE_DIR})
+ 		SET(HAVE_LIBFONTCONFIG 1)
+-		LIST(APPEND PKG_REQUIRES_PRIVATES fontconfig)
+ 	ELSE (FONTCONFIG_FOUND)
+ 		SET(FONTCONFIG_LIBRARY "")
+ 		SET(FONTCONFIG_INCLUDE_DIR "")
+@@ -236,11 +227,8 @@ else (USE_EXT_GD)
+ 
+ 	IF(RAQM_FOUND)
+ 		INCLUDE_DIRECTORIES(${RAQM_INCLUDE_DIR})
+-		SET(HAVE_RAQM 1)
+-		LIST(APPEND PKG_REQUIRES_PRIVAES raqm)
+ 	ENDIF(RAQM_FOUND)
+ 
+-	string(REPLACE ";" ", " PKG_REQUIRES_PRIVATES "${PKG_REQUIRES_PRIVATES}")
+ 	SET(HAVE_CONFIG_H 1)
+ 
+ 	ADD_DEFINITIONS(-DHAVE_CONFIG_H)
+diff --git a/config/gdlib.pc.cmake b/config/gdlib.pc.cmake
+index 5fc8af4..d1a0dda 100644
+--- a/config/gdlib.pc.cmake
++++ b/config/gdlib.pc.cmake
+@@ -6,8 +6,6 @@ includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
+ Name: gd
+ Description: GD graphics library
+ Version: @GDLIB_VERSION@
+-Requires:
+-Requires.private: @PKG_REQUIRES_PRIVATES@
+ Cflags: -I${includedir}
+-Libs.private: @LIBS_PRIVATES@
++Libs.private: @LIBGD_DEP_LIBS@
+ Libs: -L${libdir} -lgd
+diff --git a/config/gdlib.pc.in b/config/gdlib.pc.in
+index d6bc375..b980a60 100644
+--- a/config/gdlib.pc.in
++++ b/config/gdlib.pc.in
+@@ -6,8 +6,6 @@ includedir=@includedir@
+ Name: gd
+ Description: GD graphics library
+ Version: @VERSION@
+-Requires:
+-Requires.private: @PKG_REQUIRES_PRIVATES@
+ Cflags: -I${includedir}
+-Libs.private: @LIBS_PRIVATES@ @LIBICONV@
++Libs.private: @LIBS@ @LIBICONV@
+ Libs: -L${libdir} -lgd
+diff --git a/configure.ac b/configure.ac
+index 535db68..329c99c 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -33,9 +33,6 @@ AC_SUBST(GDLIB_LT_CURRENT)
+ AC_SUBST(GDLIB_LT_REVISION)
+ AC_SUBST(GDLIB_LT_AGE)
+ 
+-AC_SUBST(LIBS_PRIVATES)
+-AC_SUBST(PKG_REQUIRES_PRIVATES)
+-
+ AM_INIT_AUTOMAKE([1.11 foreign dist-xz -Wall -Werror subdir-objects])
+ AC_CONFIG_HEADERS([src/config.h:src/config.hin])
+ 
+@@ -133,7 +130,6 @@ m4_define([GD_LIB_CHECK], [dnl
+   AC_MSG_RESULT([$gd_with_lib])
+ 
+   gd_found_lib=no
+-  gd_require_pkg_name=""
+   if test "$gd_with_lib" != "no"; then
+     save_CPPFLAGS=$CPPFLAGS
+     save_LDFLAGS=$LDFLAGS
+@@ -165,11 +161,6 @@ m4_define([GD_LIB_CHECK], [dnl
+       $1][_CFLAGS="$gd_lib_cflags $][$1][_CFLAGS"
+       AS_VAR_APPEND([LIBS], [" $][$1][_LIBS"])
+       AS_VAR_APPEND([CPPFLAGS], [" $][$1][_CFLAGS"])
+-      if test -z "$gd_require_pkg_name"; then
+-        AS_VAR_APPEND([LIBS_PRIVATES], [" $][$1][_LIBS"])
+-      else
+-        AS_VAR_APPEND([PKG_REQUIRES_PRIVATES], ["  $gd_require_pkg_name"])
+-      fi
+     elif test "$gd_with_lib" = "yes"; then
+       AC_MSG_ERROR([$3 requested but not found])
+     else
+@@ -189,7 +180,7 @@ dnl $4 - pkg-config module to look for
+ dnl $5 - fallback test for the feature
+ m4_define([GD_LIB_PKG_CHECK], [dnl
+   GD_LIB_CHECK([$1], [$2], [$3], [dnl
+-    PKG_CHECK_MODULES([$1], [$4], [gd_found_lib=yes gd_require_pkg_name="$4"], [$5])
++    PKG_CHECK_MODULES([$1], [$4], [gd_found_lib=yes], [$5])
+   ])
+ ])
+ 
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+index 509c422..49adbd6 100644
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -142,12 +142,6 @@ if (BUILD_STATIC_LIBS)
+ 	target_link_libraries(${GD_LIB_STATIC} ${LIBGD_DEP_LIBS})
+ endif()
+ 
+-SET(LIBS_PRIVATES
+-	${ICONV_LIBRARIES}
+-	${LIQ_LIBRARIES}
+-	${WEBP_LIBRARIES}
+-)
+-
+ set(GD_PROGRAMS gdcmpgif)
+ 
+ if (PNG_FOUND)
+-- 
+2.31.1
+
diff --git a/gnu/packages/patches/gdk-pixbuf-CVE-2020-29385.patch b/gnu/packages/patches/gdk-pixbuf-CVE-2020-29385.patch
deleted file mode 100644
index e6ac4de00b..0000000000
--- a/gnu/packages/patches/gdk-pixbuf-CVE-2020-29385.patch
+++ /dev/null
@@ -1,53 +0,0 @@
-Fix CVE-2020-29385.  Note that we omit the binary test file
-tests/test-images/fail/hang_114.gif from the following commit, to avoid
-requiring 'git' to apply the patch.
-
-
-From bdd3acbd48a575d418ba6bf1b32d7bda2fae1c81 Mon Sep 17 00:00:00 2001
-From: Robert Ancell <robert.ancell@canonical.com>
-Date: Mon, 30 Nov 2020 12:26:12 +1300
-Subject: [PATCH] gif: Fix LZW decoder accepting invalid LZW code.
-
-The code value after a reset wasn't being validated, which means we would
-accept invalid codes. This could cause an infinite loop in the decoder.
-
-Fixes CVE-2020-29385
-
-Fixes https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/164
----
- gdk-pixbuf/lzw.c                    |  13 +++++++------
- tests/test-images/fail/hang_114.gif | Bin 0 -> 5561 bytes
- 2 files changed, 7 insertions(+), 6 deletions(-)
- create mode 100644 tests/test-images/fail/hang_114.gif
-
-diff --git a/gdk-pixbuf/lzw.c b/gdk-pixbuf/lzw.c
-index 9e052a6f7..105daf2b1 100644
---- a/gdk-pixbuf/lzw.c
-+++ b/gdk-pixbuf/lzw.c
-@@ -195,19 +195,20 @@ lzw_decoder_feed (LZWDecoder *self,
-                                 if (self->last_code != self->clear_code && self->code_table_size < MAX_CODES) {
-                                         if (self->code < self->code_table_size)
-                                                 add_code (self, self->code);
--                                        else if (self->code == self->code_table_size)
-+                                        else
-                                                 add_code (self, self->last_code);
--                                        else {
--                                                /* Invalid code received - just stop here */
--                                                self->last_code = self->eoi_code;
--                                                return output_length;
--                                        }
- 
-                                         /* When table is full increase code size */
-                                         if (self->code_table_size == (1 << self->code_size) && self->code_size < LZW_CODE_MAX)
-                                                 self->code_size++;
-                                 }
- 
-+                                /* Invalid code received - just stop here */
-+                                if (self->code >= self->code_table_size) {
-+                                        self->last_code = self->eoi_code;
-+                                        return output_length;
-+                                }
-+
-                                 /* Convert codeword into indexes */
-                                 n_written += write_indexes (self, output + n_written, output_length - n_written);
-                         }
diff --git a/gnu/packages/patches/ghostscript-CVE-2020-15900.patch b/gnu/packages/patches/ghostscript-CVE-2020-15900.patch
deleted file mode 100644
index b6658d7c7f..0000000000
--- a/gnu/packages/patches/ghostscript-CVE-2020-15900.patch
+++ /dev/null
@@ -1,36 +0,0 @@
-Fix CVE-2020-15900.
-
-https://cve.circl.lu/cve/CVE-2020-15900
-https://artifex.com/security-advisories/CVE-2020-15900
-
-Taken from upstream:
-https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=5d499272b95a6b890a1397e11d20937de000d31b
-
-diff --git a/psi/zstring.c b/psi/zstring.c
---- a/psi/zstring.c
-+++ b/psi/zstring.c
-@@ -142,13 +142,18 @@ search_impl(i_ctx_t *i_ctx_p, bool forward)
-     return 0;
- found:
-     op->tas.type_attrs = op1->tas.type_attrs;
--    op->value.bytes = ptr;
--    r_set_size(op, size);
-+    op->value.bytes = ptr;				/* match */
-+    op->tas.rsize = size;				/* match */
-     push(2);
--    op[-1] = *op1;
--    r_set_size(op - 1, ptr - op[-1].value.bytes);
--    op1->value.bytes = ptr + size;
--    r_set_size(op1, count + (!forward ? (size - 1) : 0));
-+    op[-1] = *op1;					/* pre */
-+    op[-3].value.bytes = ptr + size;			/* post */
-+    if (forward) {
-+        op[-1].tas.rsize = ptr - op[-1].value.bytes;	/* pre */
-+        op[-3].tas.rsize = count;			/* post */
-+    } else {
-+        op[-1].tas.rsize = count;			/* pre */
-+        op[-3].tas.rsize -= count + size;		/* post */
-+    }
-     make_true(op);
-     return 0;
- }
diff --git a/gnu/packages/patches/ghostscript-freetype-compat.patch b/gnu/packages/patches/ghostscript-freetype-compat.patch
deleted file mode 100644
index cc225b5ad6..0000000000
--- a/gnu/packages/patches/ghostscript-freetype-compat.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-Fix build with FreeType 2.10.3 and newer.
-
-Taken from upstream:
-https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=41ef9a0bc36b9db7115fbe9623f989bfb47bbade
-
-diff --git a/base/fapi_ft.c b/base/fapi_ft.c
---- a/base/fapi_ft.c
-+++ b/base/fapi_ft.c
-@@ -125,7 +125,7 @@ static void
- delete_inc_int_info(gs_fapi_server * a_server,
-                     FT_IncrementalRec * a_inc_int_info);
- 
--FT_CALLBACK_DEF(void *)
-+static void *
- FF_alloc(FT_Memory memory, long size)
- {
-     gs_memory_t *mem = (gs_memory_t *) memory->user;
-@@ -133,7 +133,7 @@ FF_alloc(FT_Memory memory, long size)
-     return (gs_malloc(mem, size, 1, "FF_alloc"));
- }
- 
--FT_CALLBACK_DEF(void *)
-+static void *
-     FF_realloc(FT_Memory memory, long cur_size, long new_size, void *block)
- {
-     gs_memory_t *mem = (gs_memory_t *) memory->user;
-@@ -153,7 +153,7 @@ FT_CALLBACK_DEF(void *)
-     return (tmp);
- }
- 
--FT_CALLBACK_DEF(void)
-+static void
-     FF_free(FT_Memory memory, void *block)
- {
-     gs_memory_t *mem = (gs_memory_t *) memory->user;
diff --git a/gnu/packages/patches/ghostscript-no-header-creationdate.patch b/gnu/packages/patches/ghostscript-no-header-creationdate.patch
index 92ddbdade0..b19f3ab5d9 100644
--- a/gnu/packages/patches/ghostscript-no-header-creationdate.patch
+++ b/gnu/packages/patches/ghostscript-no-header-creationdate.patch
@@ -20,3 +20,25 @@ index 0fb067e..b342e2c 100644
      {
          struct tm tms;
          time_t t;
+--- orig/gnu-ghostscript-9.14.0/devices/vector/gdevpdfe.c
++++ gnu-ghostscript-9.14.0/devices/vector/gdevpdfe.c
+@@ -692,6 +692,9 @@
+             pdf_xml_attribute_name(s, "xmlns:xmp");
+             pdf_xml_attribute_value(s, "http://ns.adobe.com/xap/1.0/");
+             pdf_xml_tag_end(s);
++            if (!getenv("GS_GENERATE_UUIDS") ||
++                (strcasecmp(getenv("GS_GENERATE_UUIDS"), "0") != 0 &&
++                 strcasecmp(getenv("GS_GENERATE_UUIDS"), "no") != 0))
+             {
+                 pdf_xml_tag_open_beg(s, "xmp:ModifyDate");
+                 pdf_xml_tag_end(s);
+@@ -700,6 +701,9 @@
+                 pdf_xml_tag_close(s, "xmp:ModifyDate");
+                 pdf_xml_newline(s);
+             }
++            if (!getenv("GS_GENERATE_UUIDS") ||
++                (strcasecmp(getenv("GS_GENERATE_UUIDS"), "0") != 0 &&
++                 strcasecmp(getenv("GS_GENERATE_UUIDS"), "no") != 0))
+             {
+                 pdf_xml_tag_open_beg(s, "xmp:CreateDate");
+                 pdf_xml_tag_end(s);
diff --git a/gnu/packages/patches/glib-CVE-2021-27218.patch b/gnu/packages/patches/glib-CVE-2021-27218.patch
deleted file mode 100644
index 00fa5ebf79..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27218.patch
+++ /dev/null
@@ -1,132 +0,0 @@
-Backport of:
-
-From 0f384c88a241bbbd884487b1c40b7b75f1e638d3 Mon Sep 17 00:00:00 2001
-From: Krzesimir Nowak <qdlacz@gmail.com>
-Date: Wed, 10 Feb 2021 23:51:07 +0100
-Subject: [PATCH] gbytearray: Do not accept too large byte arrays
-
-GByteArray uses guint for storing the length of the byte array, but it
-also has a constructor (g_byte_array_new_take) that takes length as a
-gsize. gsize may be larger than guint (64 bits for gsize vs 32 bits
-for guint). It is possible to call the function with a value greater
-than G_MAXUINT, which will result in silent length truncation. This
-may happen as a result of unreffing GBytes into GByteArray, so rather
-be loud about it.
-
-(Test case tweaked by Philip Withnall.)
-
-(Backport 2.66: Add #include gstrfuncsprivate.h in the test case for
-`g_memdup2()`.)
----
- glib/garray.c      |  6 ++++++
- glib/gbytes.c      |  4 ++++
- glib/tests/bytes.c | 35 ++++++++++++++++++++++++++++++++++-
- 3 files changed, 44 insertions(+), 1 deletion(-)
-
-diff --git a/glib/garray.c b/glib/garray.c
-index 942e74c9f..fb1a42aaf 100644
---- a/glib/garray.c
-+++ b/glib/garray.c
-@@ -2013,6 +2013,10 @@ g_byte_array_new (void)
-  * Create byte array containing the data. The data will be owned by the array
-  * and will be freed with g_free(), i.e. it could be allocated using g_strdup().
-  *
-+ * Do not use it if @len is greater than %G_MAXUINT. #GByteArray
-+ * stores the length of its data in #guint, which may be shorter than
-+ * #gsize.
-+ *
-  * Since: 2.32
-  *
-  * Returns: (transfer full): a new #GByteArray
-@@ -2024,6 +2028,8 @@ g_byte_array_new_take (guint8 *data,
-   GByteArray *array;
-   GRealArray *real;
- 
-+  g_return_val_if_fail (len <= G_MAXUINT, NULL);
-+
-   array = g_byte_array_new ();
-   real = (GRealArray *)array;
-   g_assert (real->data == NULL);
-diff --git a/glib/gbytes.c b/glib/gbytes.c
-index 7b72886e5..d56abe6c3 100644
---- a/glib/gbytes.c
-+++ b/glib/gbytes.c
-@@ -519,6 +519,10 @@ g_bytes_unref_to_data (GBytes *bytes,
-  * g_bytes_new(), g_bytes_new_take() or g_byte_array_free_to_bytes(). In all
-  * other cases the data is copied.
-  *
-+ * Do not use it if @bytes contains more than %G_MAXUINT
-+ * bytes. #GByteArray stores the length of its data in #guint, which
-+ * may be shorter than #gsize, that @bytes is using.
-+ *
-  * Returns: (transfer full): a new mutable #GByteArray containing the same byte data
-  *
-  * Since: 2.32
-diff --git a/glib/tests/bytes.c b/glib/tests/bytes.c
-index 5ea5c2b35..15a6aaad6 100644
---- a/glib/tests/bytes.c
-+++ b/glib/tests/bytes.c
-@@ -10,12 +10,12 @@
-  */
- 
- #undef G_DISABLE_ASSERT
--#undef G_LOG_DOMAIN
- 
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include "glib.h"
-+#include "glib/gstrfuncsprivate.h"
- 
- /* Keep in sync with glib/gbytes.c */
- struct _GBytes
-@@ -333,6 +333,38 @@ test_to_array_transferred (void)
-   g_byte_array_unref (array);
- }
- 
-+static void
-+test_to_array_transferred_oversize (void)
-+{
-+  g_test_message ("g_bytes_unref_to_array() can only take GBytes up to "
-+                  "G_MAXUINT in length; test that longer ones are rejected");
-+
-+  if (sizeof (guint) >= sizeof (gsize))
-+    {
-+      g_test_skip ("Skipping test as guint is not smaller than gsize");
-+    }
-+  else if (g_test_undefined ())
-+    {
-+      GByteArray *array = NULL;
-+      GBytes *bytes = NULL;
-+      gpointer data = g_memdup2 (NYAN, N_NYAN);
-+      gsize len = ((gsize) G_MAXUINT) + 1;
-+
-+      bytes = g_bytes_new_take (data, len);
-+      g_test_expect_message (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL,
-+                             "g_byte_array_new_take: assertion 'len <= G_MAXUINT' failed");
-+      array = g_bytes_unref_to_array (g_steal_pointer (&bytes));
-+      g_test_assert_expected_messages ();
-+      g_assert_null (array);
-+
-+      g_free (data);
-+    }
-+  else
-+    {
-+      g_test_skip ("Skipping test as testing undefined behaviour is disabled");
-+    }
-+}
-+
- static void
- test_to_array_two_refs (void)
- {
-@@ -410,6 +442,7 @@ main (int argc, char *argv[])
-   g_test_add_func ("/bytes/to-array/transfered", test_to_array_transferred);
-   g_test_add_func ("/bytes/to-array/two-refs", test_to_array_two_refs);
-   g_test_add_func ("/bytes/to-array/non-malloc", test_to_array_non_malloc);
-+  g_test_add_func ("/bytes/to-array/transferred/oversize", test_to_array_transferred_oversize);
-   g_test_add_func ("/bytes/null", test_null);
- 
-   return g_test_run ();
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-01.patch b/gnu/packages/patches/glib-CVE-2021-27219-01.patch
deleted file mode 100644
index 5db360d468..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-01.patch
+++ /dev/null
@@ -1,176 +0,0 @@
-Backport of:
-
-From 5e5f75a77e399c638be66d74e5daa8caeb433e00 Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Thu, 4 Feb 2021 13:30:52 +0000
-Subject: [PATCH 01/11] gstrfuncs: Add internal g_memdup2() function
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-This will replace the existing `g_memdup()` function for use within
-GLib. It has an unavoidable security flaw of taking its `byte_size`
-argument as a `guint` rather than as a `gsize`. Most callers will
-expect it to be a `gsize`, and may pass in large values which could
-silently be truncated, resulting in an undersize allocation compared
-to what the caller expects.
-
-This could lead to a classic buffer overflow vulnerability for many
-callers of `g_memdup()`.
-
-`g_memdup2()`, in comparison, takes its `byte_size` as a `gsize`.
-
-Spotted by Kevin Backhouse of GHSL.
-
-In GLib 2.68, `g_memdup2()` will be a new public API. In this version
-for backport to older stable releases, it’s a new `static inline` API
-in a private header, so that use of `g_memdup()` within GLib can be
-fixed without adding a new API in a stable release series.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
-Helps: GHSL-2021-045
-Helps: #2319
----
- docs/reference/glib/meson.build |  1 +
- glib/gstrfuncsprivate.h         | 55 +++++++++++++++++++++++++++++++++
- glib/meson.build                |  1 +
- glib/tests/strfuncs.c           | 23 ++++++++++++++
- 4 files changed, 80 insertions(+)
- create mode 100644 glib/gstrfuncsprivate.h
-
-diff --git a/docs/reference/glib/meson.build b/docs/reference/glib/meson.build
-index bba7649f0..ee39f6d04 100644
---- a/docs/reference/glib/meson.build
-+++ b/docs/reference/glib/meson.build
-@@ -22,6 +22,7 @@ if get_option('gtk_doc')
-     'gprintfint.h',
-     'gmirroringtable.h',
-     'gscripttable.h',
-+    'gstrfuncsprivate.h',
-     'glib-mirroring-tab',
-     'gnulib',
-     'pcre',
-diff --git a/glib/gstrfuncsprivate.h b/glib/gstrfuncsprivate.h
-new file mode 100644
-index 000000000..85c88328a
---- /dev/null
-+++ b/glib/gstrfuncsprivate.h
-@@ -0,0 +1,55 @@
-+/* GLIB - Library of useful routines for C programming
-+ * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
-+ *
-+ * This library is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU Lesser General Public
-+ * License as published by the Free Software Foundation; either
-+ * version 2.1 of the License, or (at your option) any later version.
-+ *
-+ * This library is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-+ * Lesser General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU Lesser General Public
-+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
-+ */
-+
-+#include <glib.h>
-+#include <string.h>
-+
-+/*
-+ * g_memdup2:
-+ * @mem: (nullable): the memory to copy.
-+ * @byte_size: the number of bytes to copy.
-+ *
-+ * Allocates @byte_size bytes of memory, and copies @byte_size bytes into it
-+ * from @mem. If @mem is %NULL it returns %NULL.
-+ *
-+ * This replaces g_memdup(), which was prone to integer overflows when
-+ * converting the argument from a #gsize to a #guint.
-+ *
-+ * This static inline version is a backport of the new public API from
-+ * GLib 2.68, kept internal to GLib for backport to older stable releases.
-+ * See https://gitlab.gnome.org/GNOME/glib/-/issues/2319.
-+ *
-+ * Returns: (nullable): a pointer to the newly-allocated copy of the memory,
-+ *    or %NULL if @mem is %NULL.
-+ * Since: 2.68
-+ */
-+static inline gpointer
-+g_memdup2 (gconstpointer mem,
-+           gsize         byte_size)
-+{
-+  gpointer new_mem;
-+
-+  if (mem && byte_size != 0)
-+    {
-+      new_mem = g_malloc (byte_size);
-+      memcpy (new_mem, mem, byte_size);
-+    }
-+  else
-+    new_mem = NULL;
-+
-+  return new_mem;
-+}
-diff --git a/glib/meson.build b/glib/meson.build
-index aaf5f00f5..5a6eea397 100644
---- a/glib/meson.build
-+++ b/glib/meson.build
-@@ -268,6 +268,7 @@ glib_sources = files(
-   'gslist.c',
-   'gstdio.c',
-   'gstrfuncs.c',
-+  'gstrfuncsprivate.h',
-   'gstring.c',
-   'gstringchunk.c',
-   'gtestutils.c',
-diff --git a/glib/tests/strfuncs.c b/glib/tests/strfuncs.c
-index e1f9619c7..d968afff9 100644
---- a/glib/tests/strfuncs.c
-+++ b/glib/tests/strfuncs.c
-@@ -32,6 +32,8 @@
- #include <string.h>
- #include "glib.h"
- 
-+#include "gstrfuncsprivate.h"
-+
- #if defined (_MSC_VER) && (_MSC_VER <= 1800)
- #define isnan(x) _isnan(x)
- 
-@@ -219,6 +221,26 @@ test_memdup (void)
-   g_free (str_dup);
- }
- 
-+/* Testing g_memdup2() function with various positive and negative cases */
-+static void
-+test_memdup2 (void)
-+{
-+  gchar *str_dup = NULL;
-+  const gchar *str = "The quick brown fox jumps over the lazy dog";
-+
-+  /* Testing negative cases */
-+  g_assert_null (g_memdup2 (NULL, 1024));
-+  g_assert_null (g_memdup2 (str, 0));
-+  g_assert_null (g_memdup2 (NULL, 0));
-+
-+  /* Testing normal usage cases */
-+  str_dup = g_memdup2 (str, strlen (str) + 1);
-+  g_assert_nonnull (str_dup);
-+  g_assert_cmpstr (str, ==, str_dup);
-+
-+  g_free (str_dup);
-+}
-+
- /* Testing g_strpcpy() function with various positive and negative cases */
- static void
- test_stpcpy (void)
-@@ -2523,6 +2545,7 @@ main (int   argc,
-   g_test_add_func ("/strfuncs/has-prefix", test_has_prefix);
-   g_test_add_func ("/strfuncs/has-suffix", test_has_suffix);
-   g_test_add_func ("/strfuncs/memdup", test_memdup);
-+  g_test_add_func ("/strfuncs/memdup2", test_memdup2);
-   g_test_add_func ("/strfuncs/stpcpy", test_stpcpy);
-   g_test_add_func ("/strfuncs/str_match_string", test_str_match_string);
-   g_test_add_func ("/strfuncs/str_tokenize_and_fold", test_str_tokenize_and_fold);
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-02.patch b/gnu/packages/patches/glib-CVE-2021-27219-02.patch
deleted file mode 100644
index 431959fa8f..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-02.patch
+++ /dev/null
@@ -1,264 +0,0 @@
-Backport of:
-
-From be8834340a2d928ece82025463ae23dee2c333d0 Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Thu, 4 Feb 2021 13:37:56 +0000
-Subject: [PATCH 02/11] gio: Use g_memdup2() instead of g_memdup() in obvious
- places
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Convert all the call sites which use `g_memdup()`’s length argument
-trivially (for example, by passing a `sizeof()`), so that they use
-`g_memdup2()` instead.
-
-In almost all of these cases the use of `g_memdup()` would not have
-caused problems, but it will soon be deprecated, so best port away from
-it.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
-Helps: #2319
----
- gio/gdbusconnection.c                 | 5 +++--
- gio/gdbusinterfaceskeleton.c          | 3 ++-
- gio/gfile.c                           | 7 ++++---
- gio/gsettingsschema.c                 | 5 +++--
- gio/gwin32registrykey.c               | 8 +++++---
- gio/tests/async-close-output-stream.c | 6 ++++--
- gio/tests/gdbus-export.c              | 5 +++--
- gio/win32/gwinhttpfile.c              | 9 +++++----
- 8 files changed, 29 insertions(+), 19 deletions(-)
-
-diff --git a/gio/gdbusconnection.c b/gio/gdbusconnection.c
-index f1f0921d4..d56453486 100644
---- a/gio/gdbusconnection.c
-+++ b/gio/gdbusconnection.c
-@@ -110,6 +110,7 @@
- #include "gasyncinitable.h"
- #include "giostream.h"
- #include "gasyncresult.h"
-+#include "gstrfuncsprivate.h"
- #include "gtask.h"
- #include "gmarshal-internal.h"
- 
-@@ -3997,7 +3998,7 @@ _g_dbus_interface_vtable_copy (const GDBusInterfaceVTable *vtable)
-   /* Don't waste memory by copying padding - remember to update this
-    * when changing struct _GDBusInterfaceVTable in gdbusconnection.h
-    */
--  return g_memdup ((gconstpointer) vtable, 3 * sizeof (gpointer));
-+  return g_memdup2 ((gconstpointer) vtable, 3 * sizeof (gpointer));
- }
- 
- static void
-@@ -4014,7 +4015,7 @@ _g_dbus_subtree_vtable_copy (const GDBusSubtreeVTable *vtable)
-   /* Don't waste memory by copying padding - remember to update this
-    * when changing struct _GDBusSubtreeVTable in gdbusconnection.h
-    */
--  return g_memdup ((gconstpointer) vtable, 3 * sizeof (gpointer));
-+  return g_memdup2 ((gconstpointer) vtable, 3 * sizeof (gpointer));
- }
- 
- static void
-diff --git a/gio/gdbusinterfaceskeleton.c b/gio/gdbusinterfaceskeleton.c
-index 4a06516c1..4a4b719a5 100644
---- a/gio/gdbusinterfaceskeleton.c
-+++ b/gio/gdbusinterfaceskeleton.c
-@@ -28,6 +28,7 @@
- #include "gdbusmethodinvocation.h"
- #include "gdbusconnection.h"
- #include "gmarshal-internal.h"
-+#include "gstrfuncsprivate.h"
- #include "gtask.h"
- #include "gioerror.h"
- 
-@@ -701,7 +702,7 @@ add_connection_locked (GDBusInterfaceSkeleton *interface_,
-        * properly before building the hooked_vtable, so we create it
-        * once at the last minute.
-        */
--      interface_->priv->hooked_vtable = g_memdup (g_dbus_interface_skeleton_get_vtable (interface_), sizeof (GDBusInterfaceVTable));
-+      interface_->priv->hooked_vtable = g_memdup2 (g_dbus_interface_skeleton_get_vtable (interface_), sizeof (GDBusInterfaceVTable));
-       interface_->priv->hooked_vtable->method_call = skeleton_intercept_handle_method_call;
-     }
- 
-diff --git a/gio/gfile.c b/gio/gfile.c
-index ba93f7c75..88b341e7d 100644
---- a/gio/gfile.c
-+++ b/gio/gfile.c
-@@ -60,6 +60,7 @@
- #include "gasyncresult.h"
- #include "gioerror.h"
- #include "glibintl.h"
-+#include "gstrfuncsprivate.h"
- 
- 
- /**
-@@ -7884,7 +7885,7 @@ measure_disk_usage_progress (gboolean reporting,
-   g_main_context_invoke_full (g_task_get_context (task),
-                               g_task_get_priority (task),
-                               measure_disk_usage_invoke_progress,
--                              g_memdup (&progress, sizeof progress),
-+                              g_memdup2 (&progress, sizeof progress),
-                               g_free);
- }
- 
-@@ -7902,7 +7903,7 @@ measure_disk_usage_thread (GTask        *task,
-                                  data->progress_callback ? measure_disk_usage_progress : NULL, task,
-                                  &result.disk_usage, &result.num_dirs, &result.num_files,
-                                  &error))
--    g_task_return_pointer (task, g_memdup (&result, sizeof result), g_free);
-+    g_task_return_pointer (task, g_memdup2 (&result, sizeof result), g_free);
-   else
-     g_task_return_error (task, error);
- }
-@@ -7926,7 +7927,7 @@ g_file_real_measure_disk_usage_async (GFile                        *file,
- 
-   task = g_task_new (file, cancellable, callback, user_data);
-   g_task_set_source_tag (task, g_file_real_measure_disk_usage_async);
--  g_task_set_task_data (task, g_memdup (&data, sizeof data), g_free);
-+  g_task_set_task_data (task, g_memdup2 (&data, sizeof data), g_free);
-   g_task_set_priority (task, io_priority);
- 
-   g_task_run_in_thread (task, measure_disk_usage_thread);
-diff --git a/gio/gsettingsschema.c b/gio/gsettingsschema.c
-index 3a60b8c64..dded9b1ca 100644
---- a/gio/gsettingsschema.c
-+++ b/gio/gsettingsschema.c
-@@ -20,6 +20,7 @@
- 
- #include "gsettingsschema-internal.h"
- #include "gsettings.h"
-+#include "gstrfuncsprivate.h"
- 
- #include "gvdb/gvdb-reader.h"
- #include "strinfo.c"
-@@ -1058,9 +1059,9 @@ g_settings_schema_list_children (GSettingsSchema *schema)
- 
-       if (g_str_has_suffix (key, "/"))
-         {
--          gint length = strlen (key);
-+          gsize length = strlen (key);
- 
--          strv[j] = g_memdup (key, length);
-+          strv[j] = g_memdup2 (key, length);
-           strv[j][length - 1] = '\0';
-           j++;
-         }
-diff --git a/gio/gwin32registrykey.c b/gio/gwin32registrykey.c
-index c19fede4e..619fd48af 100644
---- a/gio/gwin32registrykey.c
-+++ b/gio/gwin32registrykey.c
-@@ -28,6 +28,8 @@
- #include <ntstatus.h>
- #include <winternl.h>
- 
-+#include "gstrfuncsprivate.h"
-+
- #ifndef _WDMDDK_
- typedef enum _KEY_INFORMATION_CLASS {
-   KeyBasicInformation,
-@@ -247,7 +249,7 @@ g_win32_registry_value_iter_copy (const GWin32RegistryValueIter *iter)
-   new_iter->value_name_size = iter->value_name_size;
- 
-   if (iter->value_data != NULL)
--    new_iter->value_data = g_memdup (iter->value_data, iter->value_data_size);
-+    new_iter->value_data = g_memdup2 (iter->value_data, iter->value_data_size);
- 
-   new_iter->value_data_size = iter->value_data_size;
- 
-@@ -268,8 +270,8 @@ g_win32_registry_value_iter_copy (const GWin32RegistryValueIter *iter)
-   new_iter->value_data_expanded_charsize = iter->value_data_expanded_charsize;
- 
-   if (iter->value_data_expanded_u8 != NULL)
--    new_iter->value_data_expanded_u8 = g_memdup (iter->value_data_expanded_u8,
--                                                 iter->value_data_expanded_charsize);
-+    new_iter->value_data_expanded_u8 = g_memdup2 (iter->value_data_expanded_u8,
-+                                                  iter->value_data_expanded_charsize);
- 
-   new_iter->value_data_expanded_u8_size = iter->value_data_expanded_charsize;
- 
-diff --git a/gio/tests/async-close-output-stream.c b/gio/tests/async-close-output-stream.c
-index 5f6620275..d3f97a119 100644
---- a/gio/tests/async-close-output-stream.c
-+++ b/gio/tests/async-close-output-stream.c
-@@ -24,6 +24,8 @@
- #include <stdlib.h>
- #include <string.h>
- 
-+#include "gstrfuncsprivate.h"
-+
- #define DATA_TO_WRITE "Hello world\n"
- 
- typedef struct
-@@ -147,9 +149,9 @@ prepare_data (SetupData *data,
- 
-   data->expected_size = g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (data->data_stream));
- 
--  g_assert_cmpint (data->expected_size, >, 0);
-+  g_assert_cmpuint (data->expected_size, >, 0);
- 
--  data->expected_output = g_memdup (written, (guint)data->expected_size);
-+  data->expected_output = g_memdup2 (written, data->expected_size);
- 
-   /* then recreate the streams and prepare them for the asynchronous close */
-   destroy_streams (data);
-diff --git a/gio/tests/gdbus-export.c b/gio/tests/gdbus-export.c
-index 506c7458a..5513306f8 100644
---- a/gio/tests/gdbus-export.c
-+++ b/gio/tests/gdbus-export.c
-@@ -23,6 +23,7 @@
- #include <string.h>
- 
- #include "gdbus-tests.h"
-+#include "gstrfuncsprivate.h"
- 
- /* all tests rely on a shared mainloop */
- static GMainLoop *loop = NULL;
-@@ -671,7 +672,7 @@ subtree_introspect (GDBusConnection       *connection,
-       g_assert_not_reached ();
-     }
- 
--  return g_memdup (interfaces, 2 * sizeof (void *));
-+  return g_memdup2 (interfaces, 2 * sizeof (void *));
- }
- 
- static const GDBusInterfaceVTable *
-@@ -727,7 +728,7 @@ dynamic_subtree_introspect (GDBusConnection       *connection,
- {
-   const GDBusInterfaceInfo *interfaces[2] = { &dyna_interface_info, NULL };
- 
--  return g_memdup (interfaces, 2 * sizeof (void *));
-+  return g_memdup2 (interfaces, 2 * sizeof (void *));
- }
- 
- static const GDBusInterfaceVTable *
-diff --git a/gio/win32/gwinhttpfile.c b/gio/win32/gwinhttpfile.c
-index cf5eed31d..040ee8564 100644
---- a/gio/win32/gwinhttpfile.c
-+++ b/gio/win32/gwinhttpfile.c
-@@ -29,6 +29,7 @@
- #include "gio/gfile.h"
- #include "gio/gfileattribute.h"
- #include "gio/gfileinfo.h"
-+#include "gstrfuncsprivate.h"
- #include "gwinhttpfile.h"
- #include "gwinhttpfileinputstream.h"
- #include "gwinhttpfileoutputstream.h"
-@@ -393,10 +394,10 @@ g_winhttp_file_resolve_relative_path (GFile      *file,
-   child = g_object_new (G_TYPE_WINHTTP_FILE, NULL);
-   child->vfs = winhttp_file->vfs;
-   child->url = winhttp_file->url;
--  child->url.lpszScheme = g_memdup (winhttp_file->url.lpszScheme, (winhttp_file->url.dwSchemeLength+1)*2);
--  child->url.lpszHostName = g_memdup (winhttp_file->url.lpszHostName, (winhttp_file->url.dwHostNameLength+1)*2);
--  child->url.lpszUserName = g_memdup (winhttp_file->url.lpszUserName, (winhttp_file->url.dwUserNameLength+1)*2);
--  child->url.lpszPassword = g_memdup (winhttp_file->url.lpszPassword, (winhttp_file->url.dwPasswordLength+1)*2);
-+  child->url.lpszScheme = g_memdup2 (winhttp_file->url.lpszScheme, (winhttp_file->url.dwSchemeLength+1)*2);
-+  child->url.lpszHostName = g_memdup2 (winhttp_file->url.lpszHostName, (winhttp_file->url.dwHostNameLength+1)*2);
-+  child->url.lpszUserName = g_memdup2 (winhttp_file->url.lpszUserName, (winhttp_file->url.dwUserNameLength+1)*2);
-+  child->url.lpszPassword = g_memdup2 (winhttp_file->url.lpszPassword, (winhttp_file->url.dwPasswordLength+1)*2);
-   child->url.lpszUrlPath = wnew_path;
-   child->url.dwUrlPathLength = wcslen (wnew_path);
-   child->url.lpszExtraInfo = NULL;
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-03.patch b/gnu/packages/patches/glib-CVE-2021-27219-03.patch
deleted file mode 100644
index 99e849c43c..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-03.patch
+++ /dev/null
@@ -1,136 +0,0 @@
-From 6110caea45b235420b98cd41d845cc92238f6781 Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Thu, 4 Feb 2021 13:39:25 +0000
-Subject: [PATCH 03/11] gobject: Use g_memdup2() instead of g_memdup() in
- obvious places
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Convert all the call sites which use `g_memdup()`’s length argument
-trivially (for example, by passing a `sizeof()`), so that they use
-`g_memdup2()` instead.
-
-In almost all of these cases the use of `g_memdup()` would not have
-caused problems, but it will soon be deprecated, so best port away from
-it.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
-Helps: #2319
----
- gobject/gsignal.c     | 3 ++-
- gobject/gtype.c       | 9 +++++----
- gobject/gtypemodule.c | 3 ++-
- gobject/tests/param.c | 4 +++-
- 4 files changed, 12 insertions(+), 7 deletions(-)
-
-diff --git a/gobject/gsignal.c b/gobject/gsignal.c
-index 77d8f211e..41c54ab57 100644
---- a/gobject/gsignal.c
-+++ b/gobject/gsignal.c
-@@ -28,6 +28,7 @@
- #include <signal.h>
- 
- #include "gsignal.h"
-+#include "gstrfuncsprivate.h"
- #include "gtype-private.h"
- #include "gbsearcharray.h"
- #include "gvaluecollector.h"
-@@ -1730,7 +1731,7 @@ g_signal_newv (const gchar       *signal_name,
-   node->single_va_closure_is_valid = FALSE;
-   node->flags = signal_flags & G_SIGNAL_FLAGS_MASK;
-   node->n_params = n_params;
--  node->param_types = g_memdup (param_types, sizeof (GType) * n_params);
-+  node->param_types = g_memdup2 (param_types, sizeof (GType) * n_params);
-   node->return_type = return_type;
-   node->class_closure_bsa = NULL;
-   if (accumulator)
-diff --git a/gobject/gtype.c b/gobject/gtype.c
-index 7d3789400..8441b90e9 100644
---- a/gobject/gtype.c
-+++ b/gobject/gtype.c
-@@ -33,6 +33,7 @@
- 
- #include "glib-private.h"
- #include "gconstructor.h"
-+#include "gstrfuncsprivate.h"
- 
- #ifdef G_OS_WIN32
- #include <windows.h>
-@@ -1470,7 +1471,7 @@ type_add_interface_Wm (TypeNode             *node,
-   iholder->next = iface_node_get_holders_L (iface);
-   iface_node_set_holders_W (iface, iholder);
-   iholder->instance_type = NODE_TYPE (node);
--  iholder->info = info ? g_memdup (info, sizeof (*info)) : NULL;
-+  iholder->info = info ? g_memdup2 (info, sizeof (*info)) : NULL;
-   iholder->plugin = plugin;
- 
-   /* create an iface entry for this type */
-@@ -1731,7 +1732,7 @@ type_iface_retrieve_holder_info_Wm (TypeNode *iface,
-         INVALID_RECURSION ("g_type_plugin_*", iholder->plugin, NODE_NAME (iface));
-       
-       check_interface_info_I (iface, instance_type, &tmp_info);
--      iholder->info = g_memdup (&tmp_info, sizeof (tmp_info));
-+      iholder->info = g_memdup2 (&tmp_info, sizeof (tmp_info));
-     }
-   
-   return iholder;	/* we don't modify write lock upon returning NULL */
-@@ -2016,10 +2017,10 @@ type_iface_vtable_base_init_Wm (TypeNode *iface,
-       IFaceEntry *pentry = type_lookup_iface_entry_L (pnode, iface);
-       
-       if (pentry)
--	vtable = g_memdup (pentry->vtable, iface->data->iface.vtable_size);
-+	vtable = g_memdup2 (pentry->vtable, iface->data->iface.vtable_size);
-     }
-   if (!vtable)
--    vtable = g_memdup (iface->data->iface.dflt_vtable, iface->data->iface.vtable_size);
-+    vtable = g_memdup2 (iface->data->iface.dflt_vtable, iface->data->iface.vtable_size);
-   entry->vtable = vtable;
-   vtable->g_type = NODE_TYPE (iface);
-   vtable->g_instance_type = NODE_TYPE (node);
-diff --git a/gobject/gtypemodule.c b/gobject/gtypemodule.c
-index 4ecaf8c88..20911fafd 100644
---- a/gobject/gtypemodule.c
-+++ b/gobject/gtypemodule.c
-@@ -19,6 +19,7 @@
- 
- #include <stdlib.h>
- 
-+#include "gstrfuncsprivate.h"
- #include "gtypeplugin.h"
- #include "gtypemodule.h"
- 
-@@ -436,7 +437,7 @@ g_type_module_register_type (GTypeModule     *module,
-   module_type_info->loaded = TRUE;
-   module_type_info->info = *type_info;
-   if (type_info->value_table)
--    module_type_info->info.value_table = g_memdup (type_info->value_table,
-+    module_type_info->info.value_table = g_memdup2 (type_info->value_table,
- 						   sizeof (GTypeValueTable));
- 
-   return module_type_info->type;
-diff --git a/gobject/tests/param.c b/gobject/tests/param.c
-index 758289bf8..971cff162 100644
---- a/gobject/tests/param.c
-+++ b/gobject/tests/param.c
-@@ -2,6 +2,8 @@
- #include <glib-object.h>
- #include <stdlib.h>
- 
-+#include "gstrfuncsprivate.h"
-+
- static void
- test_param_value (void)
- {
-@@ -851,7 +853,7 @@ main (int argc, char *argv[])
-             test_path = g_strdup_printf ("/param/implement/subprocess/%d-%d-%d-%d",
-                                          data.change_this_flag, data.change_this_type,
-                                          data.use_this_flag, data.use_this_type);
--            test_data = g_memdup (&data, sizeof (TestParamImplementData));
-+            test_data = g_memdup2 (&data, sizeof (TestParamImplementData));
-             g_test_add_data_func_full (test_path, test_data, test_param_implement_child, g_free);
-             g_free (test_path);
-           }
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-04.patch b/gnu/packages/patches/glib-CVE-2021-27219-04.patch
deleted file mode 100644
index 3ae01f34b1..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-04.patch
+++ /dev/null
@@ -1,308 +0,0 @@
-Backport of:
-
-From 0736b7c1e7cf4232c5d7eb2b0fbfe9be81bd3baa Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Thu, 4 Feb 2021 13:41:21 +0000
-Subject: [PATCH 04/11] glib: Use g_memdup2() instead of g_memdup() in obvious
- places
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Convert all the call sites which use `g_memdup()`’s length argument
-trivially (for example, by passing a `sizeof()` or an existing `gsize`
-variable), so that they use `g_memdup2()` instead.
-
-In almost all of these cases the use of `g_memdup()` would not have
-caused problems, but it will soon be deprecated, so best port away from
-it
-
-In particular, this fixes an overflow within `g_bytes_new()`, identified
-as GHSL-2021-045 by GHSL team member Kevin Backhouse.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
-Fixes: GHSL-2021-045
-Helps: #2319
----
- glib/gbytes.c               | 6 ++++--
- glib/gdir.c                 | 3 ++-
- glib/ghash.c                | 7 ++++---
- glib/giochannel.c           | 3 ++-
- glib/gslice.c               | 3 ++-
- glib/gtestutils.c           | 3 ++-
- glib/gvariant.c             | 7 ++++---
- glib/gvarianttype.c         | 3 ++-
- glib/tests/array-test.c     | 4 +++-
- glib/tests/option-context.c | 6 ++++--
- 10 files changed, 29 insertions(+), 16 deletions(-)
-
-diff --git a/glib/gbytes.c b/glib/gbytes.c
-index d56abe6c3..dee494820 100644
---- a/glib/gbytes.c
-+++ b/glib/gbytes.c
-@@ -34,6 +34,8 @@
- 
- #include <string.h>
- 
-+#include "gstrfuncsprivate.h"
-+
- /**
-  * GBytes:
-  *
-@@ -95,7 +97,7 @@ g_bytes_new (gconstpointer data,
- {
-   g_return_val_if_fail (data != NULL || size == 0, NULL);
- 
--  return g_bytes_new_take (g_memdup (data, size), size);
-+  return g_bytes_new_take (g_memdup2 (data, size), size);
- }
- 
- /**
-@@ -499,7 +501,7 @@ g_bytes_unref_to_data (GBytes *bytes,
-        * Copy: Non g_malloc (or compatible) allocator, or static memory,
-        * so we have to copy, and then unref.
-        */
--      result = g_memdup (bytes->data, bytes->size);
-+      result = g_memdup2 (bytes->data, bytes->size);
-       *size = bytes->size;
-       g_bytes_unref (bytes);
-     }
-diff --git a/glib/gdir.c b/glib/gdir.c
-index 6b85e99c8..6747a8c6f 100644
---- a/glib/gdir.c
-+++ b/glib/gdir.c
-@@ -37,6 +37,7 @@
- #include "gconvert.h"
- #include "gfileutils.h"
- #include "gstrfuncs.h"
-+#include "gstrfuncsprivate.h"
- #include "gtestutils.h"
- #include "glibintl.h"
- 
-@@ -112,7 +113,7 @@ g_dir_open_with_errno (const gchar *path,
-     return NULL;
- #endif
- 
--  return g_memdup (&dir, sizeof dir);
-+  return g_memdup2 (&dir, sizeof dir);
- }
- 
- /**
-diff --git a/glib/ghash.c b/glib/ghash.c
-index e61b03788..26f26062b 100644
---- a/glib/ghash.c
-+++ b/glib/ghash.c
-@@ -34,6 +34,7 @@
- #include "gmacros.h"
- #include "glib-private.h"
- #include "gstrfuncs.h"
-+#include "gstrfuncsprivate.h"
- #include "gatomic.h"
- #include "gtestutils.h"
- #include "gslice.h"
-@@ -964,7 +965,7 @@ g_hash_table_ensure_keyval_fits (GHashTable *hash_table, gpointer key, gpointer
-       if (hash_table->have_big_keys)
-         {
-           if (key != value)
--            hash_table->values = g_memdup (hash_table->keys, sizeof (gpointer) * hash_table->size);
-+            hash_table->values = g_memdup2 (hash_table->keys, sizeof (gpointer) * hash_table->size);
-           /* Keys and values are both big now, so no need for further checks */
-           return;
-         }
-@@ -972,7 +973,7 @@ g_hash_table_ensure_keyval_fits (GHashTable *hash_table, gpointer key, gpointer
-         {
-           if (key != value)
-             {
--              hash_table->values = g_memdup (hash_table->keys, sizeof (guint) * hash_table->size);
-+              hash_table->values = g_memdup2 (hash_table->keys, sizeof (guint) * hash_table->size);
-               is_a_set = FALSE;
-             }
-         }
-@@ -1000,7 +1001,7 @@ g_hash_table_ensure_keyval_fits (GHashTable *hash_table, gpointer key, gpointer
- 
-   /* Just split if necessary */
-   if (is_a_set && key != value)
--    hash_table->values = g_memdup (hash_table->keys, sizeof (gpointer) * hash_table->size);
-+    hash_table->values = g_memdup2 (hash_table->keys, sizeof (gpointer) * hash_table->size);
- 
- #endif
- }
-diff --git a/glib/giochannel.c b/glib/giochannel.c
-index 1956e9dc6..15927c391 100644
---- a/glib/giochannel.c
-+++ b/glib/giochannel.c
-@@ -37,6 +37,7 @@
- #include "giochannel.h"
- 
- #include "gstrfuncs.h"
-+#include "gstrfuncsprivate.h"
- #include "gtestutils.h"
- #include "glibintl.h"
- 
-@@ -892,7 +893,7 @@ g_io_channel_set_line_term (GIOChannel	*channel,
-     length = strlen (line_term);
- 
-   g_free (channel->line_term);
--  channel->line_term = line_term ? g_memdup (line_term, length) : NULL;
-+  channel->line_term = line_term ? g_memdup2 (line_term, length) : NULL;
-   channel->line_term_len = length;
- }
- 
-diff --git a/glib/gslice.c b/glib/gslice.c
-index 4c758c3be..bcdbb8853 100644
---- a/glib/gslice.c
-+++ b/glib/gslice.c
-@@ -41,6 +41,7 @@
- #include "gmain.h"
- #include "gmem.h"               /* gslice.h */
- #include "gstrfuncs.h"
-+#include "gstrfuncsprivate.h"
- #include "gutils.h"
- #include "gtrashstack.h"
- #include "gtestutils.h"
-@@ -350,7 +351,7 @@ g_slice_get_config_state (GSliceConfig ckey,
-       array[i++] = allocator->contention_counters[address];
-       array[i++] = allocator_get_magazine_threshold (allocator, address);
-       *n_values = i;
--      return g_memdup (array, sizeof (array[0]) * *n_values);
-+      return g_memdup2 (array, sizeof (array[0]) * *n_values);
-     default:
-       return NULL;
-     }
-diff --git a/glib/gtestutils.c b/glib/gtestutils.c
-index dd789482f..5887ecc36 100644
---- a/glib/gtestutils.c
-+++ b/glib/gtestutils.c
-@@ -49,6 +49,7 @@
- #include "gpattern.h"
- #include "grand.h"
- #include "gstrfuncs.h"
-+#include "gstrfuncsprivate.h"
- #include "gtimer.h"
- #include "gslice.h"
- #include "gspawn.h"
-@@ -3798,7 +3799,7 @@ g_test_log_extract (GTestLogBuffer *tbuffer)
-       if (p <= tbuffer->data->str + mlength)
-         {
-           g_string_erase (tbuffer->data, 0, mlength);
--          tbuffer->msgs = g_slist_prepend (tbuffer->msgs, g_memdup (&msg, sizeof (msg)));
-+          tbuffer->msgs = g_slist_prepend (tbuffer->msgs, g_memdup2 (&msg, sizeof (msg)));
-           return TRUE;
-         }
- 
-diff --git a/glib/gvariant.c b/glib/gvariant.c
-index b61bf7278..d6f68a9ea 100644
---- a/glib/gvariant.c
-+++ b/glib/gvariant.c
-@@ -33,6 +33,7 @@
- 
- #include <string.h>
- 
-+#include "gstrfuncsprivate.h"
- 
- /**
-  * SECTION:gvariant
-@@ -725,7 +726,7 @@ g_variant_new_variant (GVariant *value)
-   g_variant_ref_sink (value);
- 
-   return g_variant_new_from_children (G_VARIANT_TYPE_VARIANT,
--                                      g_memdup (&value, sizeof value),
-+                                      g_memdup2 (&value, sizeof value),
-                                       1, g_variant_is_trusted (value));
- }
- 
-@@ -1229,7 +1230,7 @@ g_variant_new_fixed_array (const GVariantType  *element_type,
-       return NULL;
-     }
- 
--  data = g_memdup (elements, n_elements * element_size);
-+  data = g_memdup2 (elements, n_elements * element_size);
-   value = g_variant_new_from_data (array_type, data,
-                                    n_elements * element_size,
-                                    FALSE, g_free, data);
-@@ -1908,7 +1909,7 @@ g_variant_dup_bytestring (GVariant *value,
-   if (length)
-     *length = size;
- 
--  return g_memdup (original, size + 1);
-+  return g_memdup2 (original, size + 1);
- }
- 
- /**
-diff --git a/glib/gvarianttype.c b/glib/gvarianttype.c
-index 1a228f73b..07659ff12 100644
---- a/glib/gvarianttype.c
-+++ b/glib/gvarianttype.c
-@@ -28,6 +28,7 @@
- 
- #include <string.h>
- 
-+#include "gstrfuncsprivate.h"
- 
- /**
-  * SECTION:gvarianttype
-@@ -1181,7 +1182,7 @@ g_variant_type_new_tuple (const GVariantType * const *items,
-   g_assert (offset < sizeof buffer);
-   buffer[offset++] = ')';
- 
--  return (GVariantType *) g_memdup (buffer, offset);
-+  return (GVariantType *) g_memdup2 (buffer, offset);
- }
- 
- /**
-diff --git a/glib/tests/array-test.c b/glib/tests/array-test.c
-index 3fcf1136a..11982f822 100644
---- a/glib/tests/array-test.c
-+++ b/glib/tests/array-test.c
-@@ -29,6 +29,8 @@
- #include <string.h>
- #include "glib.h"
- 
-+#include "gstrfuncsprivate.h"
-+
- /* Test data to be passed to any function which calls g_array_new(), providing
-  * the parameters for that call. Most #GArray tests should be repeated for all
-  * possible values of #ArrayTestData. */
-@@ -1642,7 +1644,7 @@ byte_array_new_take (void)
-   GByteArray *gbarray;
-   guint8 *data;
- 
--  data = g_memdup ("woooweeewow", 11);
-+  data = g_memdup2 ("woooweeewow", 11);
-   gbarray = g_byte_array_new_take (data, 11);
-   g_assert (gbarray->data == data);
-   g_assert_cmpuint (gbarray->len, ==, 11);
-diff --git a/glib/tests/option-context.c b/glib/tests/option-context.c
-index 149d22353..88d2b80d1 100644
---- a/glib/tests/option-context.c
-+++ b/glib/tests/option-context.c
-@@ -27,6 +27,8 @@
- #include <string.h>
- #include <locale.h>
- 
-+#include "gstrfuncsprivate.h"
-+
- static GOptionEntry main_entries[] = {
-   { "main-switch", 0, 0,
-     G_OPTION_ARG_NONE, NULL,
-@@ -256,7 +258,7 @@ join_stringv (int argc, char **argv)
- static char **
- copy_stringv (char **argv, int argc)
- {
--  return g_memdup (argv, sizeof (char *) * (argc + 1));
-+  return g_memdup2 (argv, sizeof (char *) * (argc + 1));
- }
- 
- static void
-@@ -2323,7 +2325,7 @@ test_group_parse (void)
-   g_option_context_add_group (context, group);
- 
-   argv = split_string ("program --test arg1 -f arg2 --group-test arg3 --frob arg4 -z arg5", &argc);
--  orig_argv = g_memdup (argv, (argc + 1) * sizeof (char *));
-+  orig_argv = g_memdup2 (argv, (argc + 1) * sizeof (char *));
- 
-   retval = g_option_context_parse (context, &argc, &argv, &error);
- 
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-05.patch b/gnu/packages/patches/glib-CVE-2021-27219-05.patch
deleted file mode 100644
index 62bce1b188..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-05.patch
+++ /dev/null
@@ -1,47 +0,0 @@
-From 0cbad673215ec8a049b7fe2ff44b0beed31b376e Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Thu, 4 Feb 2021 16:12:24 +0000
-Subject: [PATCH 05/11] gwinhttpfile: Avoid arithmetic overflow when
- calculating a size
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-The members of `URL_COMPONENTS` (`winhttp_file->url`) are `DWORD`s, i.e.
-32-bit unsigned integers. Adding to and multiplying them may cause them
-to overflow the unsigned integer bounds, even if the result is passed to
-`g_memdup2()` which accepts a `gsize`.
-
-Cast the `URL_COMPONENTS` members to `gsize` first to ensure that the
-arithmetic is done in terms of `gsize`s rather than unsigned integers.
-
-Spotted by Sebastian Dröge.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
-Helps: #2319
----
- gio/win32/gwinhttpfile.c | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
-diff --git a/gio/win32/gwinhttpfile.c b/gio/win32/gwinhttpfile.c
-index 040ee8564..246ec0578 100644
---- a/gio/win32/gwinhttpfile.c
-+++ b/gio/win32/gwinhttpfile.c
-@@ -394,10 +394,10 @@ g_winhttp_file_resolve_relative_path (GFile      *file,
-   child = g_object_new (G_TYPE_WINHTTP_FILE, NULL);
-   child->vfs = winhttp_file->vfs;
-   child->url = winhttp_file->url;
--  child->url.lpszScheme = g_memdup2 (winhttp_file->url.lpszScheme, (winhttp_file->url.dwSchemeLength+1)*2);
--  child->url.lpszHostName = g_memdup2 (winhttp_file->url.lpszHostName, (winhttp_file->url.dwHostNameLength+1)*2);
--  child->url.lpszUserName = g_memdup2 (winhttp_file->url.lpszUserName, (winhttp_file->url.dwUserNameLength+1)*2);
--  child->url.lpszPassword = g_memdup2 (winhttp_file->url.lpszPassword, (winhttp_file->url.dwPasswordLength+1)*2);
-+  child->url.lpszScheme = g_memdup2 (winhttp_file->url.lpszScheme, ((gsize) winhttp_file->url.dwSchemeLength + 1) * 2);
-+  child->url.lpszHostName = g_memdup2 (winhttp_file->url.lpszHostName, ((gsize) winhttp_file->url.dwHostNameLength + 1) * 2);
-+  child->url.lpszUserName = g_memdup2 (winhttp_file->url.lpszUserName, ((gsize) winhttp_file->url.dwUserNameLength + 1) * 2);
-+  child->url.lpszPassword = g_memdup2 (winhttp_file->url.lpszPassword, ((gsize) winhttp_file->url.dwPasswordLength + 1) * 2);
-   child->url.lpszUrlPath = wnew_path;
-   child->url.dwUrlPathLength = wcslen (wnew_path);
-   child->url.lpszExtraInfo = NULL;
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-06.patch b/gnu/packages/patches/glib-CVE-2021-27219-06.patch
deleted file mode 100644
index 4e2435f5fd..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-06.patch
+++ /dev/null
@@ -1,94 +0,0 @@
-From f9ee2275cbc312c0b4cdbc338a4fbb76eb36fb9a Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Thu, 4 Feb 2021 13:49:00 +0000
-Subject: [PATCH 06/11] gdatainputstream: Handle stop_chars_len internally as
- gsize
-
-Previously it was handled as a `gssize`, which meant that if the
-`stop_chars` string was longer than `G_MAXSSIZE` there would be an
-overflow.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
-Helps: #2319
----
- gio/gdatainputstream.c | 25 +++++++++++++++++--------
- 1 file changed, 17 insertions(+), 8 deletions(-)
-
-diff --git a/gio/gdatainputstream.c b/gio/gdatainputstream.c
-index 2e7750cb5..2cdcbda19 100644
---- a/gio/gdatainputstream.c
-+++ b/gio/gdatainputstream.c
-@@ -27,6 +27,7 @@
- #include "gioenumtypes.h"
- #include "gioerror.h"
- #include "glibintl.h"
-+#include "gstrfuncsprivate.h"
- 
- #include <string.h>
- 
-@@ -856,7 +857,7 @@ static gssize
- scan_for_chars (GDataInputStream *stream,
- 		gsize            *checked_out,
- 		const char       *stop_chars,
--                gssize            stop_chars_len)
-+                gsize             stop_chars_len)
- {
-   GBufferedInputStream *bstream;
-   const char *buffer;
-@@ -952,7 +953,7 @@ typedef struct
-   gsize checked;
- 
-   gchar *stop_chars;
--  gssize stop_chars_len;
-+  gsize stop_chars_len;
-   gsize length;
- } GDataInputStreamReadData;
- 
-@@ -1078,12 +1079,17 @@ g_data_input_stream_read_async (GDataInputStream    *stream,
- {
-   GDataInputStreamReadData *data;
-   GTask *task;
-+  gsize stop_chars_len_unsigned;
- 
-   data = g_slice_new0 (GDataInputStreamReadData);
--  if (stop_chars_len == -1)
--    stop_chars_len = strlen (stop_chars);
--  data->stop_chars = g_memdup (stop_chars, stop_chars_len);
--  data->stop_chars_len = stop_chars_len;
-+
-+  if (stop_chars_len < 0)
-+    stop_chars_len_unsigned = strlen (stop_chars);
-+  else
-+    stop_chars_len_unsigned = (gsize) stop_chars_len;
-+
-+  data->stop_chars = g_memdup2 (stop_chars, stop_chars_len_unsigned);
-+  data->stop_chars_len = stop_chars_len_unsigned;
-   data->last_saw_cr = FALSE;
- 
-   task = g_task_new (stream, cancellable, callback, user_data);
-@@ -1338,17 +1344,20 @@ g_data_input_stream_read_upto (GDataInputStream  *stream,
-   gssize found_pos;
-   gssize res;
-   char *data_until;
-+  gsize stop_chars_len_unsigned;
- 
-   g_return_val_if_fail (G_IS_DATA_INPUT_STREAM (stream), NULL);
- 
-   if (stop_chars_len < 0)
--    stop_chars_len = strlen (stop_chars);
-+    stop_chars_len_unsigned = strlen (stop_chars);
-+  else
-+    stop_chars_len_unsigned = (gsize) stop_chars_len;
- 
-   bstream = G_BUFFERED_INPUT_STREAM (stream);
- 
-   checked = 0;
- 
--  while ((found_pos = scan_for_chars (stream, &checked, stop_chars, stop_chars_len)) == -1)
-+  while ((found_pos = scan_for_chars (stream, &checked, stop_chars, stop_chars_len_unsigned)) == -1)
-     {
-       if (g_buffered_input_stream_get_available (bstream) ==
-           g_buffered_input_stream_get_buffer_size (bstream))
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-07.patch b/gnu/packages/patches/glib-CVE-2021-27219-07.patch
deleted file mode 100644
index dad3d285f4..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-07.patch
+++ /dev/null
@@ -1,118 +0,0 @@
-Backport of:
-
-From 2aaf593a9eb96d84fe3be740aca2810a97d95592 Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Thu, 4 Feb 2021 13:50:37 +0000
-Subject: [PATCH 07/11] gwin32: Use gsize internally in g_wcsdup()
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-This allows it to handle strings up to length `G_MAXSIZE` — previously
-it would overflow with such strings.
-
-Update the several copies of it identically.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
-Helps: #2319
----
- gio/gwin32appinfo.c     | 33 ++++++++++++++++++++++++++-------
- gio/gwin32registrykey.c | 34 ++++++++++++++++++++++++++--------
- 2 files changed, 52 insertions(+), 15 deletions(-)
-
-diff --git a/gio/gwin32appinfo.c b/gio/gwin32appinfo.c
-index 9f335b370..dd7a96a4a 100644
---- a/gio/gwin32appinfo.c
-+++ b/gio/gwin32appinfo.c
-@@ -464,15 +464,34 @@ static GWin32RegistryKey *applications_key;
- /* Watch this key */
- static GWin32RegistryKey *classes_root_key;
- 
-+static gsize
-+g_utf16_len (const gunichar2 *str)
-+{
-+  gsize result;
-+
-+  for (result = 0; str[0] != 0; str++, result++)
-+    ;
-+
-+  return result;
-+}
-+
- static gunichar2 *
--g_wcsdup (const gunichar2 *str, gssize str_size)
-+g_wcsdup (const gunichar2 *str, gssize str_len)
- {
--  if (str_size == -1)
--    {
--      str_size = wcslen (str) + 1;
--      str_size *= sizeof (gunichar2);
--    }
--  return g_memdup (str, str_size);
-+  gsize str_len_unsigned;
-+  gsize str_size;
-+
-+  g_return_val_if_fail (str != NULL, NULL);
-+
-+  if (str_len < 0)
-+    str_len_unsigned = g_utf16_len (str);
-+  else
-+    str_len_unsigned = (gsize) str_len;
-+
-+  g_assert (str_len_unsigned <= G_MAXSIZE / sizeof (gunichar2) - 1);
-+  str_size = (str_len_unsigned + 1) * sizeof (gunichar2);
-+
-+  return g_memdup2 (str, str_size);
- }
- 
- #define URL_ASSOCIATIONS L"HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\Shell\\Associations\\UrlAssociations\\"
-diff --git a/gio/gwin32registrykey.c b/gio/gwin32registrykey.c
-index 619fd48af..fbd65311a 100644
---- a/gio/gwin32registrykey.c
-+++ b/gio/gwin32registrykey.c
-@@ -127,16 +127,34 @@ typedef enum
-   G_WIN32_REGISTRY_UPDATED_PATH = 1,
- } GWin32RegistryKeyUpdateFlag;
- 
-+static gsize
-+g_utf16_len (const gunichar2 *str)
-+{
-+  gsize result;
-+
-+  for (result = 0; str[0] != 0; str++, result++)
-+    ;
-+
-+  return result;
-+}
-+
- static gunichar2 *
--g_wcsdup (const gunichar2 *str,
--          gssize           str_size)
-+g_wcsdup (const gunichar2 *str, gssize str_len)
- {
--  if (str_size == -1)
--    {
--      str_size = wcslen (str) + 1;
--      str_size *= sizeof (gunichar2);
--    }
--  return g_memdup (str, str_size);
-+  gsize str_len_unsigned;
-+  gsize str_size;
-+
-+  g_return_val_if_fail (str != NULL, NULL);
-+
-+  if (str_len < 0)
-+    str_len_unsigned = g_utf16_len (str);
-+  else
-+    str_len_unsigned = (gsize) str_len;
-+
-+  g_assert (str_len_unsigned <= G_MAXSIZE / sizeof (gunichar2) - 1);
-+  str_size = (str_len_unsigned + 1) * sizeof (gunichar2);
-+
-+  return g_memdup2 (str, str_size);
- }
- 
- /**
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-08.patch b/gnu/packages/patches/glib-CVE-2021-27219-08.patch
deleted file mode 100644
index 2c021ad317..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-08.patch
+++ /dev/null
@@ -1,94 +0,0 @@
-From ba8ca443051f93a74c0d03d62e70402036f967a5 Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Thu, 4 Feb 2021 13:58:32 +0000
-Subject: [PATCH 08/11] gkeyfilesettingsbackend: Handle long keys when
- converting paths
-
-Previously, the code in `convert_path()` could not handle keys longer
-than `G_MAXINT`, and would overflow if that was exceeded.
-
-Convert the code to use `gsize` and `g_memdup2()` throughout, and
-change from identifying the position of the final slash in the string
-using a signed offset `i`, to using a pointer to the character (and
-`strrchr()`). This allows the slash to be at any position in a
-`G_MAXSIZE`-long string, without sacrificing a bit of the offset for
-indicating whether a slash was found.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
-Helps: #2319
----
- gio/gkeyfilesettingsbackend.c | 21 ++++++++++-----------
- 1 file changed, 10 insertions(+), 11 deletions(-)
-
-diff --git a/gio/gkeyfilesettingsbackend.c b/gio/gkeyfilesettingsbackend.c
-index cd5765afd..25b057672 100644
---- a/gio/gkeyfilesettingsbackend.c
-+++ b/gio/gkeyfilesettingsbackend.c
-@@ -33,6 +33,7 @@
- #include "gfilemonitor.h"
- #include "gsimplepermission.h"
- #include "gsettingsbackendinternal.h"
-+#include "gstrfuncsprivate.h"
- #include "giomodule-priv.h"
- #include "gportalsupport.h"
- 
-@@ -145,8 +146,8 @@ convert_path (GKeyfileSettingsBackend  *kfsb,
-               gchar                   **group,
-               gchar                   **basename)
- {
--  gint key_len = strlen (key);
--  gint i;
-+  gsize key_len = strlen (key);
-+  const gchar *last_slash;
- 
-   if (key_len < kfsb->prefix_len ||
-       memcmp (key, kfsb->prefix, kfsb->prefix_len) != 0)
-@@ -155,38 +156,36 @@ convert_path (GKeyfileSettingsBackend  *kfsb,
-   key_len -= kfsb->prefix_len;
-   key += kfsb->prefix_len;
- 
--  for (i = key_len; i >= 0; i--)
--    if (key[i] == '/')
--      break;
-+  last_slash = strrchr (key, '/');
- 
-   if (kfsb->root_group)
-     {
-       /* if a root_group was specified, make sure the user hasn't given
-        * a path that ghosts that group name
-        */
--      if (i == kfsb->root_group_len && memcmp (key, kfsb->root_group, i) == 0)
-+      if (last_slash != NULL && (last_slash - key) == kfsb->root_group_len && memcmp (key, kfsb->root_group, last_slash - key) == 0)
-         return FALSE;
-     }
-   else
-     {
-       /* if no root_group was given, ensure that the user gave a path */
--      if (i == -1)
-+      if (last_slash == NULL)
-         return FALSE;
-     }
- 
-   if (group)
-     {
--      if (i >= 0)
-+      if (last_slash != NULL)
-         {
--          *group = g_memdup (key, i + 1);
--          (*group)[i] = '\0';
-+          *group = g_memdup2 (key, (last_slash - key) + 1);
-+          (*group)[(last_slash - key)] = '\0';
-         }
-       else
-         *group = g_strdup (kfsb->root_group);
-     }
- 
-   if (basename)
--    *basename = g_memdup (key + i + 1, key_len - i);
-+    *basename = g_memdup2 (last_slash + 1, key_len - (last_slash - key));
- 
-   return TRUE;
- }
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-09.patch b/gnu/packages/patches/glib-CVE-2021-27219-09.patch
deleted file mode 100644
index 4de0c1b349..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-09.patch
+++ /dev/null
@@ -1,98 +0,0 @@
-From 65ec7f4d6e8832c481f6e00e2eb007b9a60024ce Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Thu, 4 Feb 2021 14:00:53 +0000
-Subject: [PATCH 09/11] gsocket: Use gsize to track native sockaddr's size
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Don’t use an `int`, that’s potentially too small. In practical terms,
-this is not a problem, since no socket address is going to be that big.
-
-By making these changes we can use `g_memdup2()` without warnings,
-though. Fewer warnings is good.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
-Helps: #2319
----
- gio/gsocket.c | 16 ++++++++++------
- 1 file changed, 10 insertions(+), 6 deletions(-)
-
-diff --git a/gio/gsocket.c b/gio/gsocket.c
-index 66073af83..a3af149e8 100644
---- a/gio/gsocket.c
-+++ b/gio/gsocket.c
-@@ -75,6 +75,7 @@
- #include "gcredentialsprivate.h"
- #include "glibintl.h"
- #include "gioprivate.h"
-+#include "gstrfuncsprivate.h"
- 
- #ifdef G_OS_WIN32
- /* For Windows XP runtime compatibility, but use the system's if_nametoindex() if available */
-@@ -174,7 +175,7 @@ static gboolean     g_socket_datagram_based_condition_wait       (GDatagramBased
-                                                                   GError          **error);
- 
- static GSocketAddress *
--cache_recv_address (GSocket *socket, struct sockaddr *native, int native_len);
-+cache_recv_address (GSocket *socket, struct sockaddr *native, size_t native_len);
- 
- static gssize
- g_socket_receive_message_with_timeout  (GSocket                 *socket,
-@@ -260,7 +261,7 @@ struct _GSocketPrivate
-   struct {
-     GSocketAddress *addr;
-     struct sockaddr *native;
--    gint native_len;
-+    gsize native_len;
-     guint64 last_used;
-   } recv_addr_cache[RECV_ADDR_CACHE_SIZE];
- };
-@@ -5211,14 +5212,14 @@ g_socket_send_messages_with_timeout (GSocket        *socket,
- }
- 
- static GSocketAddress *
--cache_recv_address (GSocket *socket, struct sockaddr *native, int native_len)
-+cache_recv_address (GSocket *socket, struct sockaddr *native, size_t native_len)
- {
-   GSocketAddress *saddr;
-   gint i;
-   guint64 oldest_time = G_MAXUINT64;
-   gint oldest_index = 0;
- 
--  if (native_len <= 0)
-+  if (native_len == 0)
-     return NULL;
- 
-   saddr = NULL;
-@@ -5226,7 +5227,7 @@ cache_recv_address (GSocket *socket, struct sockaddr *native, int native_len)
-     {
-       GSocketAddress *tmp = socket->priv->recv_addr_cache[i].addr;
-       gpointer tmp_native = socket->priv->recv_addr_cache[i].native;
--      gint tmp_native_len = socket->priv->recv_addr_cache[i].native_len;
-+      gsize tmp_native_len = socket->priv->recv_addr_cache[i].native_len;
- 
-       if (!tmp)
-         continue;
-@@ -5256,7 +5257,7 @@ cache_recv_address (GSocket *socket, struct sockaddr *native, int native_len)
-       g_free (socket->priv->recv_addr_cache[oldest_index].native);
-     }
- 
--  socket->priv->recv_addr_cache[oldest_index].native = g_memdup (native, native_len);
-+  socket->priv->recv_addr_cache[oldest_index].native = g_memdup2 (native, native_len);
-   socket->priv->recv_addr_cache[oldest_index].native_len = native_len;
-   socket->priv->recv_addr_cache[oldest_index].addr = g_object_ref (saddr);
-   socket->priv->recv_addr_cache[oldest_index].last_used = g_get_monotonic_time ();
-@@ -5404,6 +5405,9 @@ g_socket_receive_message_with_timeout (GSocket                 *socket,
-     /* do it */
-     while (1)
-       {
-+        /* addrlen has to be of type int because that’s how WSARecvFrom() is defined */
-+        G_STATIC_ASSERT (sizeof addr <= G_MAXINT);
-+
- 	addrlen = sizeof addr;
- 	if (address)
- 	  result = WSARecvFrom (socket->priv->fd,
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-10.patch b/gnu/packages/patches/glib-CVE-2021-27219-10.patch
deleted file mode 100644
index 36198b8eef..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-10.patch
+++ /dev/null
@@ -1,52 +0,0 @@
-From 777b95a88f006d39d9fe6d3321db17e7b0d4b9a4 Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Thu, 4 Feb 2021 14:07:39 +0000
-Subject: [PATCH 10/11] gtlspassword: Forbid very long TLS passwords
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-The public API `g_tls_password_set_value_full()` (and the vfunc it
-invokes) can only accept a `gssize` length. Ensure that nul-terminated
-strings passed to `g_tls_password_set_value()` can’t exceed that length.
-Use `g_memdup2()` to avoid an overflow if they’re longer than
-`G_MAXUINT` similarly.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
-Helps: #2319
----
- gio/gtlspassword.c | 10 ++++++++--
- 1 file changed, 8 insertions(+), 2 deletions(-)
-
-diff --git a/gio/gtlspassword.c b/gio/gtlspassword.c
-index 1e437a7b6..dbcec41a8 100644
---- a/gio/gtlspassword.c
-+++ b/gio/gtlspassword.c
-@@ -23,6 +23,7 @@
- #include "glibintl.h"
- 
- #include "gioenumtypes.h"
-+#include "gstrfuncsprivate.h"
- #include "gtlspassword.h"
- 
- #include <string.h>
-@@ -287,9 +288,14 @@ g_tls_password_set_value (GTlsPassword  *password,
-   g_return_if_fail (G_IS_TLS_PASSWORD (password));
- 
-   if (length < 0)
--    length = strlen ((gchar *)value);
-+    {
-+      /* FIXME: g_tls_password_set_value_full() doesn’t support unsigned gsize */
-+      gsize length_unsigned = strlen ((gchar *) value);
-+      g_return_if_fail (length_unsigned > G_MAXSSIZE);
-+      length = (gssize) length_unsigned;
-+    }
- 
--  g_tls_password_set_value_full (password, g_memdup (value, length), length, g_free);
-+  g_tls_password_set_value_full (password, g_memdup2 (value, (gsize) length), length, g_free);
- }
- 
- /**
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-11.patch b/gnu/packages/patches/glib-CVE-2021-27219-11.patch
deleted file mode 100644
index 4413cb9827..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-11.patch
+++ /dev/null
@@ -1,57 +0,0 @@
-From ecdf91400e9a538695a0895b95ad7e8abcdf1749 Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Thu, 4 Feb 2021 14:09:40 +0000
-Subject: [PATCH 11/11] giochannel: Forbid very long line terminator strings
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-The public API `GIOChannel.line_term_len` is only a `guint`. Ensure that
-nul-terminated strings passed to `g_io_channel_set_line_term()` can’t
-exceed that length. Use `g_memdup2()` to avoid a warning (`g_memdup()`
-is due to be deprecated), but not to avoid a bug, since it’s also
-limited to `G_MAXUINT`.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
-Helps: #2319
----
- glib/giochannel.c | 17 +++++++++++++----
- 1 file changed, 13 insertions(+), 4 deletions(-)
-
-diff --git a/glib/giochannel.c b/glib/giochannel.c
-index 15927c391..66c6591f0 100644
---- a/glib/giochannel.c
-+++ b/glib/giochannel.c
-@@ -884,16 +884,25 @@ g_io_channel_set_line_term (GIOChannel	*channel,
-                             const gchar	*line_term,
- 			    gint         length)
- {
-+  guint length_unsigned;
-+
-   g_return_if_fail (channel != NULL);
-   g_return_if_fail (line_term == NULL || length != 0); /* Disallow "" */
- 
-   if (line_term == NULL)
--    length = 0;
--  else if (length < 0)
--    length = strlen (line_term);
-+    length_unsigned = 0;
-+  else if (length >= 0)
-+    length_unsigned = (guint) length;
-+  else
-+    {
-+      /* FIXME: We’re constrained by line_term_len being a guint here */
-+      gsize length_size = strlen (line_term);
-+      g_return_if_fail (length_size > G_MAXUINT);
-+      length_unsigned = (guint) length_size;
-+    }
- 
-   g_free (channel->line_term);
--  channel->line_term = line_term ? g_memdup2 (line_term, length) : NULL;
-+  channel->line_term = line_term ? g_memdup2 (line_term, length_unsigned) : NULL;
-   channel->line_term_len = length;
- }
- 
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-12.patch b/gnu/packages/patches/glib-CVE-2021-27219-12.patch
deleted file mode 100644
index 4fdbb81750..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-12.patch
+++ /dev/null
@@ -1,30 +0,0 @@
-From f8273b9aded135fe07094faebd527e43851aaf6e Mon Sep 17 00:00:00 2001
-From: "Jan Alexander Steffens (heftig)" <jan.steffens@gmail.com>
-Date: Sun, 7 Feb 2021 23:32:40 +0100
-Subject: [PATCH 1/5] giochannel: Fix length_size bounds check
-
-The inverted condition is an obvious error introduced by ecdf91400e9a.
-
-Fixes https://gitlab.gnome.org/GNOME/glib/-/issues/2323
-
-(cherry picked from commit a149bf2f9030168051942124536e303af8ba6176)
----
- glib/giochannel.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/glib/giochannel.c b/glib/giochannel.c
-index 66c6591f0..0d9d5f223 100644
---- a/glib/giochannel.c
-+++ b/glib/giochannel.c
-@@ -897,7 +897,7 @@ g_io_channel_set_line_term (GIOChannel	*channel,
-     {
-       /* FIXME: We’re constrained by line_term_len being a guint here */
-       gsize length_size = strlen (line_term);
--      g_return_if_fail (length_size > G_MAXUINT);
-+      g_return_if_fail (length_size <= G_MAXUINT);
-       length_unsigned = (guint) length_size;
-     }
- 
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-13.patch b/gnu/packages/patches/glib-CVE-2021-27219-13.patch
deleted file mode 100644
index 6a287cc3a2..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-13.patch
+++ /dev/null
@@ -1,32 +0,0 @@
-From e069c50467712e6d607822afd6b6c15c2c343dff Mon Sep 17 00:00:00 2001
-From: Simon McVittie <smcv@collabora.com>
-Date: Mon, 8 Feb 2021 10:34:50 +0000
-Subject: [PATCH 2/5] giochannel: Don't store negative line_term_len in
- GIOChannel struct
-
-Adding test coverage indicated that this was another bug in 0cc11f74.
-
-Fixes: 0cc11f74 "giochannel: Forbid very long line terminator strings"
-Resolves: https://gitlab.gnome.org/GNOME/glib/-/issues/2323
-Signed-off-by: Simon McVittie <smcv@collabora.com>
-(cherry picked from commit 5dc8b0014c03e7491d93b90275ab442e888a9628)
----
- glib/giochannel.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/glib/giochannel.c b/glib/giochannel.c
-index 0d9d5f223..4c39b9dc0 100644
---- a/glib/giochannel.c
-+++ b/glib/giochannel.c
-@@ -903,7 +903,7 @@ g_io_channel_set_line_term (GIOChannel	*channel,
- 
-   g_free (channel->line_term);
-   channel->line_term = line_term ? g_memdup2 (line_term, length_unsigned) : NULL;
--  channel->line_term_len = length;
-+  channel->line_term_len = length_unsigned;
- }
- 
- /**
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-14.patch b/gnu/packages/patches/glib-CVE-2021-27219-14.patch
deleted file mode 100644
index 78de2846da..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-14.patch
+++ /dev/null
@@ -1,32 +0,0 @@
-From 4506d1859a863087598c8d122740bae25b65b099 Mon Sep 17 00:00:00 2001
-From: Simon McVittie <smcv@collabora.com>
-Date: Mon, 8 Feb 2021 10:04:48 +0000
-Subject: [PATCH 4/5] gtlspassword: Fix inverted assertion
-
-The intention here was to assert that the length of the password fits
-in a gssize. Passwords more than half the size of virtual memory are
-probably excessive.
-
-Fixes: a8b204ff "gtlspassword: Forbid very long TLS passwords"
-Signed-off-by: Simon McVittie <smcv@collabora.com>
-(cherry picked from commit 61bb52ec42de1082bfb06ce1c737fc295bfe60b8)
----
- gio/gtlspassword.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/gio/gtlspassword.c b/gio/gtlspassword.c
-index dbcec41a8..bd86a6dfe 100644
---- a/gio/gtlspassword.c
-+++ b/gio/gtlspassword.c
-@@ -291,7 +291,7 @@ g_tls_password_set_value (GTlsPassword  *password,
-     {
-       /* FIXME: g_tls_password_set_value_full() doesn’t support unsigned gsize */
-       gsize length_unsigned = strlen ((gchar *) value);
--      g_return_if_fail (length_unsigned > G_MAXSSIZE);
-+      g_return_if_fail (length_unsigned <= G_MAXSSIZE);
-       length = (gssize) length_unsigned;
-     }
- 
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-15.patch b/gnu/packages/patches/glib-CVE-2021-27219-15.patch
deleted file mode 100644
index 37ef85b4fa..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-15.patch
+++ /dev/null
@@ -1,95 +0,0 @@
-From 3d1550354c3c6a8491c39881752d51cb7515f2c2 Mon Sep 17 00:00:00 2001
-From: Simon McVittie <smcv@collabora.com>
-Date: Mon, 8 Feb 2021 10:22:39 +0000
-Subject: [PATCH 5/5] tls-interaction: Add test coverage for various ways to
- set the password
-
-Signed-off-by: Simon McVittie <smcv@collabora.com>
-(cherry picked from commit df4501316ca3903072400504a5ea76498db19538)
----
- gio/tests/tls-interaction.c | 55 +++++++++++++++++++++++++++++++++++++
- 1 file changed, 55 insertions(+)
-
-diff --git a/gio/tests/tls-interaction.c b/gio/tests/tls-interaction.c
-index 4f0737d7e..5661e8e0d 100644
---- a/gio/tests/tls-interaction.c
-+++ b/gio/tests/tls-interaction.c
-@@ -174,6 +174,38 @@ test_interaction_ask_password_finish_failure (GTlsInteraction    *interaction,
- }
- 
- 
-+/* Return a copy of @str that is allocated in a silly way, to exercise
-+ * custom free-functions. The returned pointer points to a copy of @str
-+ * in a buffer of the form "BEFORE \0 str \0 AFTER". */
-+static guchar *
-+special_dup (const char *str)
-+{
-+  GString *buf = g_string_new ("BEFORE");
-+  guchar *ret;
-+
-+  g_string_append_c (buf, '\0');
-+  g_string_append (buf, str);
-+  g_string_append_c (buf, '\0');
-+  g_string_append (buf, "AFTER");
-+  ret = (guchar *) g_string_free (buf, FALSE);
-+  return ret + strlen ("BEFORE") + 1;
-+}
-+
-+
-+/* Free a copy of @str that was made with special_dup(), after asserting
-+ * that it has not been corrupted. */
-+static void
-+special_free (gpointer p)
-+{
-+  gchar *s = p;
-+  gchar *buf = s - strlen ("BEFORE") - 1;
-+
-+  g_assert_cmpstr (buf, ==, "BEFORE");
-+  g_assert_cmpstr (s + strlen (s) + 1, ==, "AFTER");
-+  g_free (buf);
-+}
-+
-+
- static GTlsInteractionResult
- test_interaction_ask_password_sync_success (GTlsInteraction    *interaction,
-                                             GTlsPassword       *password,
-@@ -181,6 +213,8 @@ test_interaction_ask_password_sync_success (GTlsInteraction    *interaction,
-                                             GError            **error)
- {
-   TestInteraction *self;
-+  const guchar *value;
-+  gsize len;
- 
-   g_assert (TEST_IS_INTERACTION (interaction));
-   self = TEST_INTERACTION (interaction);
-@@ -192,6 +226,27 @@ test_interaction_ask_password_sync_success (GTlsInteraction    *interaction,
-   g_assert (error != NULL);
-   g_assert (*error == NULL);
- 
-+  /* Exercise different ways to set the value */
-+  g_tls_password_set_value (password, (const guchar *) "foo", 4);
-+  len = 0;
-+  value = g_tls_password_get_value (password, &len);
-+  g_assert_cmpmem (value, len, "foo", 4);
-+
-+  g_tls_password_set_value (password, (const guchar *) "bar", -1);
-+  len = 0;
-+  value = g_tls_password_get_value (password, &len);
-+  g_assert_cmpmem (value, len, "bar", 3);
-+
-+  g_tls_password_set_value_full (password, special_dup ("baa"), 4, special_free);
-+  len = 0;
-+  value = g_tls_password_get_value (password, &len);
-+  g_assert_cmpmem (value, len, "baa", 4);
-+
-+  g_tls_password_set_value_full (password, special_dup ("baz"), -1, special_free);
-+  len = 0;
-+  value = g_tls_password_get_value (password, &len);
-+  g_assert_cmpmem (value, len, "baz", 3);
-+
-   /* Don't do this in real life. Include a null terminator for testing */
-   g_tls_password_set_value (password, (const guchar *)"the password", 13);
-   return G_TLS_INTERACTION_HANDLED;
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-16.patch b/gnu/packages/patches/glib-CVE-2021-27219-16.patch
deleted file mode 100644
index 43635e72ed..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-16.patch
+++ /dev/null
@@ -1,43 +0,0 @@
-From cb9ee701ef46c1819eed4e2a4dc181682bdfc176 Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Wed, 10 Feb 2021 21:16:39 +0000
-Subject: [PATCH 1/3] gkeyfilesettingsbackend: Fix basename handling when group
- is unset
-
-Fix an effective regression in commit
-7781a9cbd2fd0aa84bee0f4eee88470640ff6706, which happens when
-`convert_path()` is called with a `key` which contains no slashes. In
-that case, the `key` is entirely the `basename`.
-
-Prior to commit 7781a9cb, the code worked through a fluke of `i == -1`
-cancelling out with the various additions in the `g_memdup()` call, and
-effectively resulting in `g_strdup (key)`.
-
-Spotted by Guido Berhoerster.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
----
- gio/gkeyfilesettingsbackend.c | 7 ++++++-
- 1 file changed, 6 insertions(+), 1 deletion(-)
-
-diff --git a/gio/gkeyfilesettingsbackend.c b/gio/gkeyfilesettingsbackend.c
-index 25b057672..861c3a661 100644
---- a/gio/gkeyfilesettingsbackend.c
-+++ b/gio/gkeyfilesettingsbackend.c
-@@ -185,7 +185,12 @@ convert_path (GKeyfileSettingsBackend  *kfsb,
-     }
- 
-   if (basename)
--    *basename = g_memdup2 (last_slash + 1, key_len - (last_slash - key));
-+    {
-+      if (last_slash != NULL)
-+        *basename = g_memdup2 (last_slash + 1, key_len - (last_slash - key));
-+      else
-+        *basename = g_strdup (key);
-+    }
- 
-   return TRUE;
- }
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-17.patch b/gnu/packages/patches/glib-CVE-2021-27219-17.patch
deleted file mode 100644
index 3153979071..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-17.patch
+++ /dev/null
@@ -1,37 +0,0 @@
-From 31e0d403ba635dbbacbfbff74295e5db02558d76 Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Wed, 10 Feb 2021 21:19:30 +0000
-Subject: [PATCH 2/3] gkeyfilesettingsbackend: Disallow empty key or group
- names
-
-These should never have been allowed; they will result in precondition
-failures from the `GKeyFile` later on in the code.
-
-A test will be added for this shortly.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
----
- gio/gkeyfilesettingsbackend.c | 7 +++++++
- 1 file changed, 7 insertions(+)
-
-diff --git a/gio/gkeyfilesettingsbackend.c b/gio/gkeyfilesettingsbackend.c
-index 861c3a661..de216e615 100644
---- a/gio/gkeyfilesettingsbackend.c
-+++ b/gio/gkeyfilesettingsbackend.c
-@@ -158,6 +158,13 @@ convert_path (GKeyfileSettingsBackend  *kfsb,
- 
-   last_slash = strrchr (key, '/');
- 
-+  /* Disallow empty group names or key names */
-+  if (key_len == 0 ||
-+      (last_slash != NULL &&
-+       (*(last_slash + 1) == '\0' ||
-+        last_slash == key)))
-+    return FALSE;
-+
-   if (kfsb->root_group)
-     {
-       /* if a root_group was specified, make sure the user hasn't given
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-27219-18.patch b/gnu/packages/patches/glib-CVE-2021-27219-18.patch
deleted file mode 100644
index c18d44ddeb..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-27219-18.patch
+++ /dev/null
@@ -1,232 +0,0 @@
-Backport of:
-
-From 221c26685354dea2b2732df94404e8e5e77a1591 Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Wed, 10 Feb 2021 21:21:36 +0000
-Subject: [PATCH 3/3] tests: Add tests for key name handling in the keyfile
- backend
-
-This tests the two recent commits.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
----
- gio/tests/gsettings.c | 171 +++++++++++++++++++++++++++++++++++++++++-
- 1 file changed, 170 insertions(+), 1 deletion(-)
-
-diff --git a/gio/tests/gsettings.c b/gio/tests/gsettings.c
-index baadca8f5..afe594a23 100644
---- a/gio/tests/gsettings.c
-+++ b/gio/tests/gsettings.c
-@@ -1,3 +1,4 @@
-+#include <errno.h>
- #include <stdlib.h>
- #include <locale.h>
- #include <libintl.h>
-@@ -1740,6 +1741,14 @@ key_changed_cb (GSettings *settings, const gchar *key, gpointer data)
-   (*b) = TRUE;
- }
- 
-+typedef struct
-+{
-+  const gchar *path;
-+  const gchar *root_group;
-+  const gchar *keyfile_group;
-+  const gchar *root_path;
-+} KeyfileTestData;
-+
- /*
-  * Test that using a keyfile works
-  */
-@@ -1834,7 +1843,11 @@ test_keyfile (Fixture       *fixture,
-   g_free (str);
- 
-   g_settings_set (settings, "farewell", "s", "cheerio");
--  
-+
-+  /* Check that empty keys/groups are not allowed. */
-+  g_assert_false (g_settings_is_writable (settings, ""));
-+  g_assert_false (g_settings_is_writable (settings, "/"));
-+
-   /* When executing as root, changing the mode of the keyfile will have
-    * no effect on the writability of the settings.
-    */
-@@ -1866,6 +1879,149 @@ test_keyfile (Fixture       *fixture,
-   g_free (keyfile_path);
- }
- 
-+/*
-+ * Test that using a keyfile works with a schema with no path set.
-+ */
-+static void
-+test_keyfile_no_path (Fixture       *fixture,
-+                      gconstpointer  user_data)
-+{
-+  const KeyfileTestData *test_data = user_data;
-+  GSettingsBackend *kf_backend;
-+  GSettings *settings;
-+  GKeyFile *keyfile;
-+  gboolean writable;
-+  gchar *key = NULL;
-+  GError *error = NULL;
-+  gchar *keyfile_path = NULL, *store_path = NULL;
-+
-+  keyfile_path = g_build_filename (fixture->tmp_dir, "keyfile", NULL);
-+  store_path = g_build_filename (keyfile_path, "gsettings.store", NULL);
-+  kf_backend = g_keyfile_settings_backend_new (store_path, test_data->root_path, test_data->root_group);
-+  settings = g_settings_new_with_backend_and_path ("org.gtk.test.no-path", kf_backend, test_data->path);
-+  g_object_unref (kf_backend);
-+
-+  g_settings_reset (settings, "test-boolean");
-+  g_assert_true (g_settings_get_boolean (settings, "test-boolean"));
-+
-+  writable = g_settings_is_writable (settings, "test-boolean");
-+  g_assert_true (writable);
-+  g_settings_set (settings, "test-boolean", "b", FALSE);
-+
-+  g_assert_false (g_settings_get_boolean (settings, "test-boolean"));
-+
-+  g_settings_delay (settings);
-+  g_settings_set (settings, "test-boolean", "b", TRUE);
-+  g_settings_apply (settings);
-+
-+  keyfile = g_key_file_new ();
-+  g_assert_true (g_key_file_load_from_file (keyfile, store_path, 0, NULL));
-+
-+  g_assert_true (g_key_file_get_boolean (keyfile, test_data->keyfile_group, "test-boolean", NULL));
-+
-+  g_key_file_free (keyfile);
-+
-+  g_settings_reset (settings, "test-boolean");
-+  g_settings_apply (settings);
-+  keyfile = g_key_file_new ();
-+  g_assert_true (g_key_file_load_from_file (keyfile, store_path, 0, NULL));
-+
-+  g_assert_false (g_key_file_get_string (keyfile, test_data->keyfile_group, "test-boolean", &error));
-+  g_assert_error (error, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_KEY_NOT_FOUND);
-+  g_clear_error (&error);
-+
-+  /* Check that empty keys/groups are not allowed. */
-+  g_assert_false (g_settings_is_writable (settings, ""));
-+  g_assert_false (g_settings_is_writable (settings, "/"));
-+
-+  /* Keys which ghost the root group name are not allowed. This can only be
-+   * tested when the path is `/` as otherwise it acts as a prefix and prevents
-+   * any ghosting. */
-+  if (g_str_equal (test_data->path, "/"))
-+    {
-+      key = g_strdup_printf ("%s/%s", test_data->root_group, "");
-+      g_assert_false (g_settings_is_writable (settings, key));
-+      g_free (key);
-+
-+      key = g_strdup_printf ("%s/%s", test_data->root_group, "/");
-+      g_assert_false (g_settings_is_writable (settings, key));
-+      g_free (key);
-+
-+      key = g_strdup_printf ("%s/%s", test_data->root_group, "test-boolean");
-+      g_assert_false (g_settings_is_writable (settings, key));
-+      g_free (key);
-+    }
-+
-+  g_key_file_free (keyfile);
-+  g_object_unref (settings);
-+
-+  /* Clean up the temporary directory. */
-+  g_assert_cmpint (g_chmod (keyfile_path, 0777) == 0 ? 0 : errno, ==, 0);
-+  g_assert_cmpint (g_remove (store_path) == 0 ? 0 : errno, ==, 0);
-+  g_assert_cmpint (g_rmdir (keyfile_path) == 0 ? 0 : errno, ==, 0);
-+  g_free (store_path);
-+  g_free (keyfile_path);
-+}
-+
-+/*
-+ * Test that a keyfile rejects writes to keys outside its root path.
-+ */
-+static void
-+test_keyfile_outside_root_path (Fixture       *fixture,
-+                                gconstpointer  user_data)
-+{
-+  GSettingsBackend *kf_backend;
-+  GSettings *settings;
-+  gchar *keyfile_path = NULL, *store_path = NULL;
-+
-+  keyfile_path = g_build_filename (fixture->tmp_dir, "keyfile", NULL);
-+  store_path = g_build_filename (keyfile_path, "gsettings.store", NULL);
-+  kf_backend = g_keyfile_settings_backend_new (store_path, "/tests/basic-types/", "root");
-+  settings = g_settings_new_with_backend_and_path ("org.gtk.test.no-path", kf_backend, "/tests/");
-+  g_object_unref (kf_backend);
-+
-+  g_assert_false (g_settings_is_writable (settings, "test-boolean"));
-+
-+  g_object_unref (settings);
-+
-+  /* Clean up the temporary directory. The keyfile probably doesn’t exist, so
-+   * don’t error on failure. */
-+  g_remove (store_path);
-+  g_assert_cmpint (g_rmdir (keyfile_path) == 0 ? 0 : errno, ==, 0);
-+  g_free (store_path);
-+  g_free (keyfile_path);
-+}
-+
-+/*
-+ * Test that a keyfile rejects writes to keys in the root if no root group is set.
-+ */
-+static void
-+test_keyfile_no_root_group (Fixture       *fixture,
-+                            gconstpointer  user_data)
-+{
-+  GSettingsBackend *kf_backend;
-+  GSettings *settings;
-+  gchar *keyfile_path = NULL, *store_path = NULL;
-+
-+  keyfile_path = g_build_filename (fixture->tmp_dir, "keyfile", NULL);
-+  store_path = g_build_filename (keyfile_path, "gsettings.store", NULL);
-+  kf_backend = g_keyfile_settings_backend_new (store_path, "/", NULL);
-+  settings = g_settings_new_with_backend_and_path ("org.gtk.test.no-path", kf_backend, "/");
-+  g_object_unref (kf_backend);
-+
-+  g_assert_false (g_settings_is_writable (settings, "test-boolean"));
-+  g_assert_true (g_settings_is_writable (settings, "child/test-boolean"));
-+
-+  g_object_unref (settings);
-+
-+  /* Clean up the temporary directory. The keyfile probably doesn’t exist, so
-+   * don’t error on failure. */
-+  g_remove (store_path);
-+  g_assert_cmpint (g_rmdir (keyfile_path) == 0 ? 0 : errno, ==, 0);
-+  g_free (store_path);
-+  g_free (keyfile_path);
-+}
-+
- /* Test that getting child schemas works
-  */
- static void
-@@ -2844,6 +3000,14 @@ main (int argc, char *argv[])
-   gchar *override_text;
-   gchar *enums;
-   gint result;
-+  const KeyfileTestData keyfile_test_data_explicit_path = { "/tests/", "root", "tests", "/" };
-+  const KeyfileTestData keyfile_test_data_empty_path = { "/", "root", "root", "/" };
-+  const KeyfileTestData keyfile_test_data_long_path = {
-+    "/tests/path/is/very/long/and/this/makes/some/comparisons/take/a/different/branch/",
-+    "root",
-+    "tests/path/is/very/long/and/this/makes/some/comparisons/take/a/different/branch",
-+    "/"
-+  };
- 
- /* Meson build sets this */
- #ifdef TEST_LOCALE_PATH
-@@ -2967,6 +3131,11 @@ main (int argc, char *argv[])
-     }
- 
-   g_test_add ("/gsettings/keyfile", Fixture, NULL, setup, test_keyfile, teardown);
-+  g_test_add ("/gsettings/keyfile/explicit-path", Fixture, &keyfile_test_data_explicit_path, setup, test_keyfile_no_path, teardown);
-+  g_test_add ("/gsettings/keyfile/empty-path", Fixture, &keyfile_test_data_empty_path, setup, test_keyfile_no_path, teardown);
-+  g_test_add ("/gsettings/keyfile/long-path", Fixture, &keyfile_test_data_long_path, setup, test_keyfile_no_path, teardown);
-+  g_test_add ("/gsettings/keyfile/outside-root-path", Fixture, NULL, setup, test_keyfile_outside_root_path, teardown);
-+  g_test_add ("/gsettings/keyfile/no-root-group", Fixture, NULL, setup, test_keyfile_no_root_group, teardown);
-   g_test_add_func ("/gsettings/child-schema", test_child_schema);
-   g_test_add_func ("/gsettings/strinfo", test_strinfo);
-   g_test_add_func ("/gsettings/enums", test_enums);
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-CVE-2021-28153.patch b/gnu/packages/patches/glib-CVE-2021-28153.patch
deleted file mode 100644
index 54443186d9..0000000000
--- a/gnu/packages/patches/glib-CVE-2021-28153.patch
+++ /dev/null
@@ -1,283 +0,0 @@
-Backport of:
-
-From 317b3b587058a05dca95d56dac26568c5b098d33 Mon Sep 17 00:00:00 2001
-From: Philip Withnall <pwithnall@endlessos.org>
-Date: Wed, 24 Feb 2021 17:35:40 +0000
-Subject: [PATCH] glocalfileoutputstream: Fix CREATE_REPLACE_DESTINATION
- with symlinks
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-The `G_FILE_CREATE_REPLACE_DESTINATION` flag is equivalent to unlinking
-the destination file and re-creating it from scratch. That did
-previously work, but in the process the code would call `open(O_CREAT)`
-on the file. If the file was a dangling symlink, this would create the
-destination file (empty). That’s not an intended side-effect, and has
-security implications if the symlink is controlled by a lower-privileged
-process.
-
-Fix that by not opening the destination file if it’s a symlink, and
-adjusting the rest of the code to cope with
- - the fact that `fd == -1` is not an error iff `is_symlink` is true,
- - and that `original_stat` will contain the `lstat()` results for the
-   symlink now, rather than the `stat()` results for its target (again,
-   iff `is_symlink` is true).
-
-This means that the target of the dangling symlink is no longer created,
-which was the bug. The symlink itself continues to be replaced (as
-before) with the new file — this is the intended behaviour of
-`g_file_replace()`.
-
-The behaviour for non-symlink cases, or cases where the symlink was not
-dangling, should be unchanged.
-
-Includes a unit test.
-
-Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
-
-Fixes: #2325
----
- gio/glocalfileoutputstream.c |  70 ++++++++++++++++-------
- gio/tests/file.c             | 108 +++++++++++++++++++++++++++++++++++
- 2 files changed, 158 insertions(+), 20 deletions(-)
-
-diff --git a/gio/glocalfileoutputstream.c b/gio/glocalfileoutputstream.c
-index a3dd62172..553fcbbae 100644
---- a/gio/glocalfileoutputstream.c
-+++ b/gio/glocalfileoutputstream.c
-@@ -874,16 +874,22 @@ handle_overwrite_open (const char    *filename,
-       /* Could be a symlink, or it could be a regular ELOOP error,
-        * but then the next open will fail too. */
-       is_symlink = TRUE;
--      fd = g_open (filename, open_flags, mode);
-+      if (!(flags & G_FILE_CREATE_REPLACE_DESTINATION))
-+        fd = g_open (filename, open_flags, mode);
-     }
--#else
--  fd = g_open (filename, open_flags, mode);
--  errsv = errno;
-+#else  /* if !O_NOFOLLOW */
-   /* This is racy, but we do it as soon as possible to minimize the race */
-   is_symlink = g_file_test (filename, G_FILE_TEST_IS_SYMLINK);
-+
-+  if (!is_symlink || !(flags & G_FILE_CREATE_REPLACE_DESTINATION))
-+    {
-+      fd = g_open (filename, open_flags, mode);
-+      errsv = errno;
-+    }
- #endif
- 
--  if (fd == -1)
-+  if (fd == -1 &&
-+      (!is_symlink || !(flags & G_FILE_CREATE_REPLACE_DESTINATION)))
-     {
-       char *display_name = g_filename_display_name (filename);
-       g_set_error (error, G_IO_ERROR,
-@@ -893,13 +899,25 @@ handle_overwrite_open (const char    *filename,
-       g_free (display_name);
-       return -1;
-     }
--  
-+
-+  if (!is_symlink)
-+    {
- #ifdef G_OS_WIN32
--  res = GLIB_PRIVATE_CALL (g_win32_fstat) (fd, &original_stat);
-+      res = GLIB_PRIVATE_CALL (g_win32_fstat) (fd, &original_stat);
- #else
--  res = fstat (fd, &original_stat);
-+      res = fstat (fd, &original_stat);
- #endif
--  errsv = errno;
-+      errsv = errno;
-+    }
-+  else
-+    {
-+#ifdef G_OS_WIN32
-+      res = GLIB_PRIVATE_CALL (g_win32_lstat_utf8) (filename, &original_stat);
-+#else
-+      res = g_lstat (filename, &original_stat);
-+#endif
-+      errsv = errno;
-+    }
- 
-   if (res != 0)
-     {
-@@ -916,16 +934,27 @@ handle_overwrite_open (const char    *filename,
-   if (!S_ISREG (original_stat.st_mode))
-     {
-       if (S_ISDIR (original_stat.st_mode))
--	g_set_error_literal (error,
--                             G_IO_ERROR,
--                             G_IO_ERROR_IS_DIRECTORY,
--                             _("Target file is a directory"));
--      else
--	g_set_error_literal (error,
--                             G_IO_ERROR,
--                             G_IO_ERROR_NOT_REGULAR_FILE,
--                             _("Target file is not a regular file"));
--      goto err_out;
-+        {
-+          g_set_error_literal (error,
-+                               G_IO_ERROR,
-+                               G_IO_ERROR_IS_DIRECTORY,
-+                               _("Target file is a directory"));
-+          goto err_out;
-+        }
-+      else if (!is_symlink ||
-+#ifdef S_ISLNK
-+               !S_ISLNK (original_stat.st_mode)
-+#else
-+               FALSE
-+#endif
-+               )
-+        {
-+          g_set_error_literal (error,
-+                               G_IO_ERROR,
-+                               G_IO_ERROR_NOT_REGULAR_FILE,
-+                               _("Target file is not a regular file"));
-+          goto err_out;
-+        }
-     }
-   
-   if (etag != NULL)
-@@ -1006,7 +1035,8 @@ handle_overwrite_open (const char    *filename,
- 	    }
- 	}
- 
--      g_close (fd, NULL);
-+      if (fd >= 0)
-+        g_close (fd, NULL);
-       *temp_filename = tmp_filename;
-       return tmpfd;
-     }
-diff --git a/gio/tests/file.c b/gio/tests/file.c
-index efb2eaadd..bc55f3af4 100644
---- a/gio/tests/file.c
-+++ b/gio/tests/file.c
-@@ -804,6 +804,113 @@ test_replace_cancel (void)
-   g_object_unref (tmpdir);
- }
- 
-+static void
-+test_replace_symlink (void)
-+{
-+#ifdef G_OS_UNIX
-+  gchar *tmpdir_path = NULL;
-+  GFile *tmpdir = NULL, *source_file = NULL, *target_file = NULL;
-+  GFileOutputStream *stream = NULL;
-+  const gchar *new_contents = "this is a test message which should be written to source and not target";
-+  gsize n_written;
-+  GFileEnumerator *enumerator = NULL;
-+  GFileInfo *info = NULL;
-+  gchar *contents = NULL;
-+  gsize length = 0;
-+  GError *local_error = NULL;
-+
-+  g_test_bug ("https://gitlab.gnome.org/GNOME/glib/-/issues/2325");
-+  g_test_summary ("Test that G_FILE_CREATE_REPLACE_DESTINATION doesn’t follow symlinks");
-+
-+  /* Create a fresh, empty working directory. */
-+  tmpdir_path = g_dir_make_tmp ("g_file_replace_symlink_XXXXXX", &local_error);
-+  g_assert_no_error (local_error);
-+  tmpdir = g_file_new_for_path (tmpdir_path);
-+
-+  g_test_message ("Using temporary directory %s", tmpdir_path);
-+  g_free (tmpdir_path);
-+
-+  /* Create symlink `source` which points to `target`. */
-+  source_file = g_file_get_child (tmpdir, "source");
-+  target_file = g_file_get_child (tmpdir, "target");
-+  g_file_make_symbolic_link (source_file, "target", NULL, &local_error);
-+  g_assert_no_error (local_error);
-+
-+  /* Ensure that `target` doesn’t exist */
-+  g_assert_false (g_file_query_exists (target_file, NULL));
-+
-+  /* Replace the `source` symlink with a regular file using
-+   * %G_FILE_CREATE_REPLACE_DESTINATION, which should replace it *without*
-+   * following the symlink */
-+  stream = g_file_replace (source_file, NULL, FALSE  /* no backup */,
-+                           G_FILE_CREATE_REPLACE_DESTINATION, NULL, &local_error);
-+  g_assert_no_error (local_error);
-+
-+  g_output_stream_write_all (G_OUTPUT_STREAM (stream), new_contents, strlen (new_contents),
-+                             &n_written, NULL, &local_error);
-+  g_assert_no_error (local_error);
-+  g_assert_cmpint (n_written, ==, strlen (new_contents));
-+
-+  g_output_stream_close (G_OUTPUT_STREAM (stream), NULL, &local_error);
-+  g_assert_no_error (local_error);
-+
-+  g_clear_object (&stream);
-+
-+  /* At this point, there should still only be one file: `source`. It should
-+   * now be a regular file. `target` should not exist. */
-+  enumerator = g_file_enumerate_children (tmpdir,
-+                                          G_FILE_ATTRIBUTE_STANDARD_NAME ","
-+                                          G_FILE_ATTRIBUTE_STANDARD_TYPE,
-+                                          G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, NULL, &local_error);
-+  g_assert_no_error (local_error);
-+
-+  info = g_file_enumerator_next_file (enumerator, NULL, &local_error);
-+  g_assert_no_error (local_error);
-+  g_assert_nonnull (info);
-+
-+  g_assert_cmpstr (g_file_info_get_name (info), ==, "source");
-+  g_assert_cmpint (g_file_info_get_file_type (info), ==, G_FILE_TYPE_REGULAR);
-+
-+  g_clear_object (&info);
-+
-+  info = g_file_enumerator_next_file (enumerator, NULL, &local_error);
-+  g_assert_no_error (local_error);
-+  g_assert_null (info);
-+
-+  g_file_enumerator_close (enumerator, NULL, &local_error);
-+  g_assert_no_error (local_error);
-+  g_clear_object (&enumerator);
-+
-+  /* Double-check that `target` doesn’t exist */
-+  g_assert_false (g_file_query_exists (target_file, NULL));
-+
-+  /* Check the content of `source`. */
-+  g_file_load_contents (source_file,
-+                        NULL,
-+                        &contents,
-+                        &length,
-+                        NULL,
-+                        &local_error);
-+  g_assert_no_error (local_error);
-+  g_assert_cmpstr (contents, ==, new_contents);
-+  g_assert_cmpuint (length, ==, strlen (new_contents));
-+  g_free (contents);
-+
-+  /* Tidy up. */
-+  g_file_delete (source_file, NULL, &local_error);
-+  g_assert_no_error (local_error);
-+
-+  g_file_delete (tmpdir, NULL, &local_error);
-+  g_assert_no_error (local_error);
-+
-+  g_clear_object (&target_file);
-+  g_clear_object (&source_file);
-+  g_clear_object (&tmpdir);
-+#else  /* if !G_OS_UNIX */
-+  g_test_skip ("Symlink replacement tests can only be run on Unix")
-+#endif
-+}
-+
- static void
- on_file_deleted (GObject      *object,
- 		 GAsyncResult *result,
-@@ -1754,6 +1861,7 @@ main (int argc, char *argv[])
-   g_test_add_data_func ("/file/async-create-delete/4096", GINT_TO_POINTER (4096), test_create_delete);
-   g_test_add_func ("/file/replace-load", test_replace_load);
-   g_test_add_func ("/file/replace-cancel", test_replace_cancel);
-+  g_test_add_func ("/file/replace-symlink", test_replace_symlink);
-   g_test_add_func ("/file/async-delete", test_async_delete);
- #ifdef G_OS_UNIX
-   g_test_add_func ("/file/copy-preserve-mode", test_copy_preserve_mode);
--- 
-2.30.1
-
diff --git a/gnu/packages/patches/glib-skip-failing-test.patch b/gnu/packages/patches/glib-skip-failing-test.patch
new file mode 100644
index 0000000000..c7706aaa74
--- /dev/null
+++ b/gnu/packages/patches/glib-skip-failing-test.patch
@@ -0,0 +1,27 @@
+This test timed out on powerpc-linux even after extending the
+test_timeout_slow to 1800 seconds. Previously we tried to work around
+this test by extending test_timeout_slow by 1.5 its previous value.
+
+---
+ gio/tests/meson.build | 4 ----
+ 1 file changed, 4 deletions(-)
+
+diff --git a/gio/tests/meson.build b/gio/tests/meson.build
+index a926ae0..4fdbe7a 100644
+--- a/gio/tests/meson.build
++++ b/gio/tests/meson.build
+@@ -317,10 +317,6 @@ if host_machine.system() != 'windows'
+         'extra_sources' : [extra_sources, gdbus_test_codegen_generated, gdbus_test_codegen_generated_interface_info],
+         'c_args' : ['-DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_32'],
+       },
+-      'gdbus-threading' : {
+-        'extra_sources' : extra_sources,
+-        'suite' : ['slow'],
+-      },
+       'gmenumodel' : {
+         'extra_sources' : extra_sources,
+         'suite' : ['slow'],
+
+-- 
+2.31.1
+
diff --git a/gnu/packages/patches/glib-tests-timer.patch b/gnu/packages/patches/glib-tests-timer.patch
deleted file mode 100644
index e37425c0c8..0000000000
--- a/gnu/packages/patches/glib-tests-timer.patch
+++ /dev/null
@@ -1,15 +0,0 @@
-* On i686 floating-point roundoff errors could sometimes cause this check to
-  fail depending on the elapsed microseconds.  Improve rounding by adding a
-  fractional bit.
-
---- glib-2.40.0/glib/tests/timer.c	2014-03-05 08:05:42.000000000 -0600
-+++ glib-2.40.0/glib/tests/timer.c	2014-07-10 16:33:12.746862822 -0500
-@@ -35,7 +35,7 @@
-   elapsed = g_timer_elapsed (timer, &micros);
- 
-   g_assert_cmpfloat (elapsed, <, 1.0);
--  g_assert_cmpuint (micros, ==, ((guint64)(elapsed * 1e6)) % 1000000);
-+  g_assert_cmpuint (micros, ==, ((guint64)(elapsed * 1e6 + 0.5)) % 1000000);
- 
-   g_timer_destroy (timer);
- }
diff --git a/gnu/packages/patches/glibc-2.27-git-fixes.patch b/gnu/packages/patches/glibc-2.27-git-fixes.patch
deleted file mode 100644
index 4ed67c7c25..0000000000
--- a/gnu/packages/patches/glibc-2.27-git-fixes.patch
+++ /dev/null
@@ -1,702 +0,0 @@
-These commits are cherry-picked from the "release/2.27/master" branch.
-
-https://sourceware.org/git/?p=glibc.git;a=shortlog;h=refs/heads/release/2.27/master
-
-Currently, we have the following (with NEWS and ChangeLog entries omitted).
-
-56170e064e2b21ce204f0817733e92f1730541ea
-516fa6080481a1433c173320b1c1432868e1e38a
-f36553bf6a4f69070f99badbdab5802b43e6e211
-7c6304182b9f422b782ace1cdd3efbde056aec36
-78a90c2f74a2012dd3eff302189e47ff6779a757
-1e52d8e65a58c49a48549053a1b89c06240e0c6c
-55ad82e45c313454de657931898e974a7a036cad
-
-From 56170e064e2b21ce204f0817733e92f1730541ea Mon Sep 17 00:00:00 2001
-From: Igor Gnatenko <ignatenko@redhat.com>
-Date: Wed, 7 Feb 2018 13:53:10 +0100
-Subject: [PATCH] Linux: use reserved name __key in pkey_get [BZ #22797]
-
-_key is not reserved name and we should avoid using that. It seems that
-it was simple typo when pkey_* was implemented.
-
-(cherry picked from commit 388ff7bd0d57d7061fdd39a2f26f65687e8058da)
-
-diff --git a/sysdeps/unix/sysv/linux/bits/mman-shared.h b/sysdeps/unix/sysv/linux/bits/mman-shared.h
-index 7715e680ca..d15ba95c9d 100644
---- a/sysdeps/unix/sysv/linux/bits/mman-shared.h
-+++ b/sysdeps/unix/sysv/linux/bits/mman-shared.h
-@@ -61,7 +61,7 @@ int pkey_set (int __key, unsigned int __access_rights) __THROW;
- 
- /* Return the access rights for the current thread for KEY, which must
-    have been allocated using pkey_alloc.  */
--int pkey_get (int _key) __THROW;
-+int pkey_get (int __key) __THROW;
- 
- /* Free an allocated protection key, which must have been allocated
-    using pkey_alloc.  */
-
-From 516fa6080481a1433c173320b1c1432868e1e38a Mon Sep 17 00:00:00 2001
-From: "Dmitry V. Levin" <ldv@altlinux.org>
-Date: Fri, 29 Dec 2017 23:19:32 +0000
-Subject: [PATCH] linux/aarch64: sync sys/ptrace.h with Linux 4.15 [BZ #22433]
-
-Remove compat-specific constants that were never exported by kernel
-headers under these names.  Before linux commit v3.7-rc1~16^2~1 they
-were exported with COMPAT_ prefix, and since that commit they are not
-exported at all.
-
-* sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h (__ptrace_request):
-Remove arm-specific PTRACE_GET_THREAD_AREA, PTRACE_GETHBPREGS,
-and PTRACE_SETHBPREGS.
-
-(cherry picked from commit 2fd4bbaa1446f1be700e10c526cf585a796c4991)
-
-diff --git a/sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h b/sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h
-index 4be45b95ff..444edbb702 100644
---- a/sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h
-+++ b/sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h
-@@ -78,18 +78,10 @@ enum __ptrace_request
-   PTRACE_DETACH = 17,
- #define PT_DETACH PTRACE_DETACH
- 
--  PTRACE_GET_THREAD_AREA = 22,
--
-   /* Continue and stop at the next entry to or return from syscall.  */
-   PTRACE_SYSCALL = 24,
- #define PT_SYSCALL PTRACE_SYSCALL
- 
--  /* Get all hardware breakpoint registers.  */
--  PTRACE_GETHBPREGS = 29,
--
--  /* Set all hardware breakpoint registers.  */
--  PTRACE_SETHBPREGS = 30,
--
-   /* Set ptrace filter options.  */
-   PTRACE_SETOPTIONS = 0x4200,
- #define PT_SETOPTIONS PTRACE_SETOPTIONS
-
-From f36553bf6a4f69070f99badbdab5802b43e6e211 Mon Sep 17 00:00:00 2001
-From: Mike FABIAN <mfabian@redhat.com>
-Date: Mon, 19 Feb 2018 21:59:30 +0100
-Subject: [PATCH] =?UTF-8?q?Add=20missing=20=E2=80=9Creorder-end=E2=80=9D?=
- =?UTF-8?q?=20in=20LC=5FCOLLATE=20of=20et=5FEE=20[BZ=20#22517]?=
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-	[BZ #22517]
-	* localedata/locales/et_EE (LC_COLLATE): add missing “reorder-end”
-
-(cherry picked from commit 7ec5f9465e732e668d0dc94ac078ba68056d6d0a)
-
-diff --git a/localedata/locales/et_EE b/localedata/locales/et_EE
-index 9cb55b568f..bab7493c98 100644
---- a/localedata/locales/et_EE
-+++ b/localedata/locales/et_EE
-@@ -103,6 +103,8 @@ reorder-after <w>
- <U00FC> <u-diaresis>;<BAS>;<MIN>;IGNORE % ü
- <U00DC> <u-diaresis>;<BAS>;<CAP>;IGNORE % Ü
- 
-+reorder-end
-+
- END LC_COLLATE
- 
- LC_CTYPE
-
-From 7c6304182b9f422b782ace1cdd3efbde056aec36 Mon Sep 17 00:00:00 2001
-From: DJ Delorie <dj@redhat.com>
-Date: Thu, 1 Mar 2018 23:20:45 -0500
-Subject: [PATCH] [BZ #22342] Fix netgroup cache keys.
-
-Unlike other nscd caches, the netgroup cache contains two types of
-records - those for "iterate through a netgroup" (i.e. setnetgrent())
-and those for "is this user in this netgroup" (i.e. innetgr()),
-i.e. full and partial records.  The timeout code assumes these records
-have the same key for the group name, so that the collection of records
-that is "this netgroup" can be expired as a unit.
-
-However, the keys are not the same, as the in-netgroup key is generated
-by nscd rather than being passed to it from elsewhere, and is generated
-without the trailing NUL.  All other keys have the trailing NUL, and as
-noted in the linked BZ, debug statements confirm that two keys for the
-same netgroup are added to the cache with two different lengths.
-
-The result of this is that as records in the cache expire, the purge
-code only cleans out one of the two types of entries, resulting in
-stale, possibly incorrect, and possibly inconsistent cache data.
-
-The patch simply includes the existing NUL in the computation for the
-key length ('key' points to the char after the NUL, and 'group' to the
-first char of the group, so 'key-group' includes the first char to the
-NUL, inclusive).
-
-	[BZ #22342]
-	* nscd/netgroupcache.c (addinnetgrX): Include trailing NUL in
-	key value.
-
-Reviewed-by: Carlos O'Donell <carlos@redhat.com>
-(cherry picked from commit 1c81d55fc4b07b51adf68558ba74ce975153e580)
-
-diff --git a/nscd/netgroupcache.c b/nscd/netgroupcache.c
-index b832c9315f..2f187b208c 100644
---- a/nscd/netgroupcache.c
-+++ b/nscd/netgroupcache.c
-@@ -480,7 +480,7 @@ addinnetgrX (struct database_dyn *db, int fd, request_header *req,
- {
-   const char *group = key;
-   key = (char *) rawmemchr (key, '\0') + 1;
--  size_t group_len = key - group - 1;
-+  size_t group_len = key - group;
-   const char *host = *key++ ? key : NULL;
-   if (host != NULL)
-     key = (char *) rawmemchr (key, '\0') + 1;
-
-From 78a90c2f74a2012dd3eff302189e47ff6779a757 Mon Sep 17 00:00:00 2001
-From: Andreas Schwab <schwab@linux-m68k.org>
-Date: Fri, 2 Mar 2018 23:07:14 +0100
-Subject: [PATCH] Fix multiple definitions of __nss_*_database (bug 22918)
-
-(cherry picked from commit eaf6753f8aac33a36deb98c1031d1bad7b593d2d)
-
-diff --git a/nscd/gai.c b/nscd/gai.c
-index d081747797..576fd0045b 100644
---- a/nscd/gai.c
-+++ b/nscd/gai.c
-@@ -45,3 +45,6 @@
- #ifdef HAVE_LIBIDN
- # include <libidn/idn-stub.c>
- #endif
-+
-+/* Some variables normally defined in libc.  */
-+service_user *__nss_hosts_database attribute_hidden;
-diff --git a/nss/nsswitch.c b/nss/nsswitch.c
-index d5e655974f..b0f0c11a3e 100644
---- a/nss/nsswitch.c
-+++ b/nss/nsswitch.c
-@@ -62,7 +62,7 @@ static service_library *nss_new_service (name_database *database,
- 
- /* Declare external database variables.  */
- #define DEFINE_DATABASE(name)						      \
--  extern service_user *__nss_##name##_database attribute_hidden;	      \
-+  service_user *__nss_##name##_database attribute_hidden;		      \
-   weak_extern (__nss_##name##_database)
- #include "databases.def"
- #undef DEFINE_DATABASE
-diff --git a/nss/nsswitch.h b/nss/nsswitch.h
-index eccb535ef5..63573b9ebc 100644
---- a/nss/nsswitch.h
-+++ b/nss/nsswitch.h
-@@ -226,10 +226,10 @@ libc_hidden_proto (__nss_hostname_digits_dots)
- #define MAX_NR_ADDRS    48
- 
- /* Prototypes for __nss_*_lookup2 functions.  */
--#define DEFINE_DATABASE(arg)				    \
--  service_user *__nss_##arg##_database attribute_hidden;    \
--  int __nss_##arg##_lookup2 (service_user **, const char *, \
--			     const char *, void **);	    \
-+#define DEFINE_DATABASE(arg)						      \
-+  extern service_user *__nss_##arg##_database attribute_hidden;		      \
-+  int __nss_##arg##_lookup2 (service_user **, const char *,		      \
-+			     const char *, void **);			      \
-   libc_hidden_proto (__nss_##arg##_lookup2)
- #include "databases.def"
- #undef DEFINE_DATABASE
-diff --git a/posix/tst-rfc3484-2.c b/posix/tst-rfc3484-2.c
-index f509534ca9..8c64ac59ff 100644
---- a/posix/tst-rfc3484-2.c
-+++ b/posix/tst-rfc3484-2.c
-@@ -58,6 +58,7 @@ _res_hconf_init (void)
- #undef	USE_NSCD
- #include "../sysdeps/posix/getaddrinfo.c"
- 
-+service_user *__nss_hosts_database attribute_hidden;
- 
- /* This is the beginning of the real test code.  The above defines
-    (among other things) the function rfc3484_sort.  */
-diff --git a/posix/tst-rfc3484-3.c b/posix/tst-rfc3484-3.c
-index ae44087a10..1c61aaf844 100644
---- a/posix/tst-rfc3484-3.c
-+++ b/posix/tst-rfc3484-3.c
-@@ -58,6 +58,7 @@ _res_hconf_init (void)
- #undef	USE_NSCD
- #include "../sysdeps/posix/getaddrinfo.c"
- 
-+service_user *__nss_hosts_database attribute_hidden;
- 
- /* This is the beginning of the real test code.  The above defines
-    (among other things) the function rfc3484_sort.  */
-diff --git a/posix/tst-rfc3484.c b/posix/tst-rfc3484.c
-index 7f191abbbc..8f45848e44 100644
---- a/posix/tst-rfc3484.c
-+++ b/posix/tst-rfc3484.c
-@@ -58,6 +58,7 @@ _res_hconf_init (void)
- #undef	USE_NSCD
- #include "../sysdeps/posix/getaddrinfo.c"
- 
-+service_user *__nss_hosts_database attribute_hidden;
- 
- /* This is the beginning of the real test code.  The above defines
-    (among other things) the function rfc3484_sort.  */
-
-From 1e52d8e65a58c49a48549053a1b89c06240e0c6c Mon Sep 17 00:00:00 2001
-From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
-Date: Fri, 17 Nov 2017 16:04:29 -0200
-Subject: [PATCH] i386: Fix i386 sigaction sa_restorer initialization
- (BZ#21269)
-
-This patch fixes the i386 sa_restorer field initialization for sigaction
-syscall for kernel with vDSO.  As described in bug report, i386 Linux
-(and compat on x86_64) interprets SA_RESTORER clear with nonzero
-sa_restorer as a request for stack switching if the SS segment is 'funny'.
-This means that anything that tries to mix glibc's signal handling with
-segmentation (for instance through modify_ldt syscall) is randomly broken
-depending on what values lands in sa_restorer.
-
-The testcase added  is based on Linux test tools/testing/selftests/x86/ldt_gdt.c,
-more specifically in do_multicpu_tests function.  The main changes are:
-
-  - C11 atomics instead of plain access.
-
-  - Remove x86_64 support which simplifies the syscall handling and fallbacks.
-
-  - Replicate only the test required to trigger the issue.
-
-Checked on i686-linux-gnu.
-
-	[BZ #21269]
-	* sysdeps/unix/sysv/linux/i386/Makefile (tests): Add tst-bz21269.
-	* sysdeps/unix/sysv/linux/i386/sigaction.c (SET_SA_RESTORER): Clear
-	sa_restorer for vDSO case.
-	* sysdeps/unix/sysv/linux/i386/tst-bz21269.c: New file.
-
-(cherry picked from commit 68448be208ee06e76665918b37b0a57e3e00c8b4)
-
-diff --git a/sysdeps/unix/sysv/linux/i386/Makefile b/sysdeps/unix/sysv/linux/i386/Makefile
-index 4080b8c966..da716e2c1b 100644
---- a/sysdeps/unix/sysv/linux/i386/Makefile
-+++ b/sysdeps/unix/sysv/linux/i386/Makefile
-@@ -3,6 +3,9 @@ default-abi := 32
- 
- ifeq ($(subdir),misc)
- sysdep_routines += ioperm iopl vm86
-+
-+tests += tst-bz21269
-+$(objpfx)tst-bz21269: $(shared-thread-library)
- endif
- 
- ifeq ($(subdir),elf)
-diff --git a/sysdeps/unix/sysv/linux/i386/sigaction.c b/sysdeps/unix/sysv/linux/i386/sigaction.c
-index a5eb9e0d3e..177ff60ee6 100644
---- a/sysdeps/unix/sysv/linux/i386/sigaction.c
-+++ b/sysdeps/unix/sysv/linux/i386/sigaction.c
-@@ -42,7 +42,6 @@ extern void restore_rt (void) asm ("__restore_rt") attribute_hidden;
- #endif
- extern void restore (void) asm ("__restore") attribute_hidden;
- 
--
- /* If ACT is not NULL, change the action for SIG to *ACT.
-    If OACT is not NULL, put the old action for SIG in *OACT.  */
- int
-@@ -65,6 +64,8 @@ __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
- 	  kact.sa_restorer = ((act->sa_flags & SA_SIGINFO)
- 			      ? &restore_rt : &restore);
- 	}
-+      else
-+	kact.sa_restorer = NULL;
-     }
- 
-   /* XXX The size argument hopefully will have to be changed to the
-diff --git a/sysdeps/unix/sysv/linux/i386/tst-bz21269.c b/sysdeps/unix/sysv/linux/i386/tst-bz21269.c
-new file mode 100644
-index 0000000000..353e36507d
---- /dev/null
-+++ b/sysdeps/unix/sysv/linux/i386/tst-bz21269.c
-@@ -0,0 +1,233 @@
-+/* Test for i386 sigaction sa_restorer handling (BZ#21269)
-+   Copyright (C) 2017 Free Software Foundation, Inc.
-+   This file is part of the GNU C Library.
-+
-+   The GNU C Library is free software; you can redistribute it and/or
-+   modify it under the terms of the GNU Lesser General Public
-+   License as published by the Free Software Foundation; either
-+   version 2.1 of the License, or (at your option) any later version.
-+
-+   The GNU C Library is distributed in the hope that it will be useful,
-+   but WITHOUT ANY WARRANTY; without even the implied warranty of
-+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-+   Lesser General Public License for more details.
-+
-+   You should have received a copy of the GNU Lesser General Public
-+   License along with the GNU C Library; if not, see
-+   <http://www.gnu.org/licenses/>.  */
-+
-+/* This is based on Linux test tools/testing/selftests/x86/ldt_gdt.c,
-+   more specifically in do_multicpu_tests function.  The main changes
-+   are:
-+
-+   - C11 atomics instead of plain access.
-+   - Remove x86_64 support which simplifies the syscall handling
-+     and fallbacks.
-+   - Replicate only the test required to trigger the issue for the
-+     BZ#21269.  */
-+
-+#include <stdatomic.h>
-+
-+#include <asm/ldt.h>
-+#include <linux/futex.h>
-+
-+#include <setjmp.h>
-+#include <signal.h>
-+#include <errno.h>
-+#include <sys/syscall.h>
-+#include <sys/mman.h>
-+
-+#include <support/xunistd.h>
-+#include <support/check.h>
-+#include <support/xthread.h>
-+
-+static int
-+xset_thread_area (struct user_desc *u_info)
-+{
-+  long ret = syscall (SYS_set_thread_area, u_info);
-+  TEST_VERIFY_EXIT (ret == 0);
-+  return ret;
-+}
-+
-+static void
-+xmodify_ldt (int func, const void *ptr, unsigned long bytecount)
-+{
-+  TEST_VERIFY_EXIT (syscall (SYS_modify_ldt, 1, ptr, bytecount) == 0);
-+}
-+
-+static int
-+futex (int *uaddr, int futex_op, int val, void *timeout, int *uaddr2,
-+	int val3)
-+{
-+  return syscall (SYS_futex, uaddr, futex_op, val, timeout, uaddr2, val3);
-+}
-+
-+static void
-+xsethandler (int sig, void (*handler)(int, siginfo_t *, void *), int flags)
-+{
-+  struct sigaction sa = { 0 };
-+  sa.sa_sigaction = handler;
-+  sa.sa_flags = SA_SIGINFO | flags;
-+  TEST_VERIFY_EXIT (sigemptyset (&sa.sa_mask) == 0);
-+  TEST_VERIFY_EXIT (sigaction (sig, &sa, 0) == 0);
-+}
-+
-+static jmp_buf jmpbuf;
-+
-+static void
-+sigsegv_handler (int sig, siginfo_t *info, void *ctx_void)
-+{
-+  siglongjmp (jmpbuf, 1);
-+}
-+
-+/* Points to an array of 1024 ints, each holding its own index.  */
-+static const unsigned int *counter_page;
-+static struct user_desc *low_user_desc;
-+static struct user_desc *low_user_desc_clear; /* Used to delete GDT entry.  */
-+static int gdt_entry_num;
-+
-+static void
-+setup_counter_page (void)
-+{
-+  long page_size = sysconf (_SC_PAGE_SIZE);
-+  TEST_VERIFY_EXIT (page_size > 0);
-+  unsigned int *page = xmmap (NULL, page_size, PROT_READ | PROT_WRITE,
-+			      MAP_ANONYMOUS | MAP_PRIVATE | MAP_32BIT, -1);
-+  for (int i = 0; i < (page_size / sizeof (unsigned int)); i++)
-+    page[i] = i;
-+  counter_page = page;
-+}
-+
-+static void
-+setup_low_user_desc (void)
-+{
-+  low_user_desc = xmmap (NULL, 2 * sizeof (struct user_desc),
-+			 PROT_READ | PROT_WRITE,
-+			 MAP_ANONYMOUS | MAP_PRIVATE | MAP_32BIT, -1);
-+
-+  low_user_desc->entry_number    = -1;
-+  low_user_desc->base_addr       = (unsigned long) &counter_page[1];
-+  low_user_desc->limit           = 0xffff;
-+  low_user_desc->seg_32bit       = 1;
-+  low_user_desc->contents        = 0;
-+  low_user_desc->read_exec_only  = 0;
-+  low_user_desc->limit_in_pages  = 1;
-+  low_user_desc->seg_not_present = 0;
-+  low_user_desc->useable         = 0;
-+
-+  xset_thread_area (low_user_desc);
-+
-+  low_user_desc_clear = low_user_desc + 1;
-+  low_user_desc_clear->entry_number = gdt_entry_num;
-+  low_user_desc_clear->read_exec_only = 1;
-+  low_user_desc_clear->seg_not_present = 1;
-+}
-+
-+/* Possible values of futex:
-+   0: thread is idle.
-+   1: thread armed.
-+   2: thread should clear LDT entry 0.
-+   3: thread should exit.  */
-+static atomic_uint ftx;
-+
-+static void *
-+threadproc (void *ctx)
-+{
-+  while (1)
-+    {
-+      futex ((int *) &ftx, FUTEX_WAIT, 1, NULL, NULL, 0);
-+      while (atomic_load (&ftx) != 2)
-+	{
-+	  if (atomic_load (&ftx) >= 3)
-+	    return NULL;
-+	}
-+
-+      /* clear LDT entry 0.  */
-+      const struct user_desc desc = { 0 };
-+      xmodify_ldt (1, &desc, sizeof (desc));
-+
-+      /* If ftx == 2, set it to zero,  If ftx == 100, quit.  */
-+      if (atomic_fetch_add (&ftx, -2) != 2)
-+	return NULL;
-+    }
-+}
-+
-+
-+/* As described in testcase, for historical reasons x86_32 Linux (and compat
-+   on x86_64) interprets SA_RESTORER clear with nonzero sa_restorer as a
-+   request for stack switching if the SS segment is 'funny' (this is default
-+   scenario for vDSO system).  This means that anything that tries to mix
-+   signal handling with segmentation should explicit clear the sa_restorer.
-+
-+   This testcase check if sigaction in fact does it by changing the local
-+   descriptor table (LDT) through the modify_ldt syscall and triggering
-+   a synchronous segfault on iret fault by trying to install an invalid
-+   segment.  With a correct zeroed sa_restorer it should not trigger an
-+   'real' SEGSEGV and allows the siglongjmp in signal handler.  */
-+
-+static int
-+do_test (void)
-+{
-+  setup_counter_page ();
-+  setup_low_user_desc ();
-+
-+  pthread_t thread;
-+  unsigned short orig_ss;
-+
-+  xsethandler (SIGSEGV, sigsegv_handler, 0);
-+  /* 32-bit kernels send SIGILL instead of SIGSEGV on IRET faults.  */
-+  xsethandler (SIGILL, sigsegv_handler, 0);
-+
-+  thread = xpthread_create (0, threadproc, 0);
-+
-+  asm volatile ("mov %%ss, %0" : "=rm" (orig_ss));
-+
-+  for (int i = 0; i < 5; i++)
-+    {
-+      if (sigsetjmp (jmpbuf, 1) != 0)
-+	continue;
-+
-+      /* Make sure the thread is ready after the last test. */
-+      while (atomic_load (&ftx) != 0)
-+	;
-+
-+      struct user_desc desc = {
-+	.entry_number       = 0,
-+	.base_addr          = 0,
-+	.limit              = 0xffff,
-+	.seg_32bit          = 1,
-+	.contents           = 0,
-+	.read_exec_only     = 0,
-+	.limit_in_pages     = 1,
-+	.seg_not_present    = 0,
-+	.useable            = 0
-+      };
-+
-+      xmodify_ldt (0x11, &desc, sizeof (desc));
-+
-+      /* Arm the thread.  */
-+      ftx = 1;
-+      futex ((int*) &ftx, FUTEX_WAKE, 0, NULL, NULL, 0);
-+
-+      asm volatile ("mov %0, %%ss" : : "r" (0x7));
-+
-+      /* Fire up thread modify_ldt call.  */
-+      atomic_store (&ftx, 2);
-+
-+      while (atomic_load (&ftx) != 0)
-+	;
-+
-+      /* On success, modify_ldt will segfault us synchronously and we will
-+	 escape via siglongjmp.  */
-+      support_record_failure ();
-+    }
-+
-+  atomic_store (&ftx, 100);
-+  futex ((int*) &ftx, FUTEX_WAKE, 0, NULL, NULL, 0);
-+
-+  xpthread_join (thread);
-+
-+  return 0;
-+}
-+
-+#include <support/test-driver.c>
-
-From 55ad82e45c313454de657931898e974a7a036cad Mon Sep 17 00:00:00 2001
-From: Andrew Senkevich <andrew.n.senkevich@gmail.com>
-Date: Fri, 23 Mar 2018 16:19:45 +0100
-Subject: [PATCH] Fix i386 memmove issue (bug 22644).
-
-	[BZ #22644]
-	* sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S: Fixed
-	branch conditions.
-	* string/test-memmove.c (do_test2): New testcase.
-
-(cherry picked from commit cd66c0e584c6d692bc8347b5e72723d02b8a8ada)
-
-diff --git a/string/test-memmove.c b/string/test-memmove.c
-index edc7a4c3bf..64e3651ba4 100644
---- a/string/test-memmove.c
-+++ b/string/test-memmove.c
-@@ -24,6 +24,7 @@
- # define TEST_NAME "memmove"
- #endif
- #include "test-string.h"
-+#include <support/test-driver.h>
- 
- char *simple_memmove (char *, const char *, size_t);
- 
-@@ -245,6 +246,60 @@ do_random_tests (void)
-     }
- }
- 
-+static void
-+do_test2 (void)
-+{
-+  size_t size = 0x20000000;
-+  uint32_t * large_buf;
-+
-+  large_buf = mmap ((void*) 0x70000000, size, PROT_READ | PROT_WRITE,
-+		    MAP_PRIVATE | MAP_ANON, -1, 0);
-+
-+  if (large_buf == MAP_FAILED)
-+    error (EXIT_UNSUPPORTED, errno, "Large mmap failed");
-+
-+  if ((uintptr_t) large_buf > 0x80000000 - 128
-+      || 0x80000000 - (uintptr_t) large_buf > 0x20000000)
-+    {
-+      error (0, 0, "Large mmap allocated improperly");
-+      ret = EXIT_UNSUPPORTED;
-+      munmap ((void *) large_buf, size);
-+      return;
-+    }
-+
-+  size_t bytes_move = 0x80000000 - (uintptr_t) large_buf;
-+  size_t arr_size = bytes_move / sizeof (uint32_t);
-+  size_t i;
-+
-+  FOR_EACH_IMPL (impl, 0)
-+    {
-+      for (i = 0; i < arr_size; i++)
-+        large_buf[i] = (uint32_t) i;
-+
-+      uint32_t * dst = &large_buf[33];
-+
-+#ifdef TEST_BCOPY
-+      CALL (impl, (char *) large_buf, (char *) dst, bytes_move);
-+#else
-+      CALL (impl, (char *) dst, (char *) large_buf, bytes_move);
-+#endif
-+
-+      for (i = 0; i < arr_size; i++)
-+	{
-+	  if (dst[i] != (uint32_t) i)
-+	    {
-+	      error (0, 0,
-+		     "Wrong result in function %s dst \"%p\" src \"%p\" offset \"%zd\"",
-+		     impl->name, dst, large_buf, i);
-+	      ret = 1;
-+	      break;
-+	    }
-+	}
-+    }
-+
-+  munmap ((void *) large_buf, size);
-+}
-+
- int
- test_main (void)
- {
-@@ -284,6 +339,9 @@ test_main (void)
-     }
- 
-   do_random_tests ();
-+
-+  do_test2 ();
-+
-   return ret;
- }
- 
-diff --git a/sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S b/sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S
-index 9c3bbe7e17..9aa17de99c 100644
---- a/sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S
-+++ b/sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S
-@@ -72,7 +72,7 @@ ENTRY (MEMCPY)
- 	cmp	%edx, %eax
- 
- # ifdef USE_AS_MEMMOVE
--	jg	L(check_forward)
-+	ja	L(check_forward)
- 
- L(mm_len_0_or_more_backward):
- /* Now do checks for lengths. We do [0..16], [16..32], [32..64], [64..128]
-@@ -81,7 +81,7 @@ L(mm_len_0_or_more_backward):
- 	jbe	L(mm_len_0_16_bytes_backward)
- 
- 	cmpl	$32, %ecx
--	jg	L(mm_len_32_or_more_backward)
-+	ja	L(mm_len_32_or_more_backward)
- 
- /* Copy [0..32] and return.  */
- 	movdqu	(%eax), %xmm0
-@@ -92,7 +92,7 @@ L(mm_len_0_or_more_backward):
- 
- L(mm_len_32_or_more_backward):
- 	cmpl	$64, %ecx
--	jg	L(mm_len_64_or_more_backward)
-+	ja	L(mm_len_64_or_more_backward)
- 
- /* Copy [0..64] and return.  */
- 	movdqu	(%eax), %xmm0
-@@ -107,7 +107,7 @@ L(mm_len_32_or_more_backward):
- 
- L(mm_len_64_or_more_backward):
- 	cmpl	$128, %ecx
--	jg	L(mm_len_128_or_more_backward)
-+	ja	L(mm_len_128_or_more_backward)
- 
- /* Copy [0..128] and return.  */
- 	movdqu	(%eax), %xmm0
-@@ -132,7 +132,7 @@ L(mm_len_128_or_more_backward):
- 	add	%ecx, %eax
- 	cmp	%edx, %eax
- 	movl	SRC(%esp), %eax
--	jle	L(forward)
-+	jbe	L(forward)
- 	PUSH (%esi)
- 	PUSH (%edi)
- 	PUSH (%ebx)
-@@ -269,7 +269,7 @@ L(check_forward):
- 	add	%edx, %ecx
- 	cmp	%eax, %ecx
- 	movl	LEN(%esp), %ecx
--	jle	L(forward)
-+	jbe	L(forward)
- 
- /* Now do checks for lengths. We do [0..16], [0..32], [0..64], [0..128]
- 	separately.  */
diff --git a/gnu/packages/patches/glibc-2.27-supported-locales.patch b/gnu/packages/patches/glibc-2.27-supported-locales.patch
deleted file mode 100644
index 2888052bb8..0000000000
--- a/gnu/packages/patches/glibc-2.27-supported-locales.patch
+++ /dev/null
@@ -1,33 +0,0 @@
-This patch is taken from debian's glibc package (generate-supported.mk).
-It install the localedata/SUPPORTED file of the glibc. This file lists
-all the supported locales of the glibc.
-
-diff --git a/localedata/Makefile.old b/localedata/Makefile
-index 34877c0..a61d9b9 100644
---- a/localedata/Makefile.old
-+++ b/localedata/Makefile
-@@ -91,7 +91,8 @@ endif
- # Files to install.
- install-others := $(addprefix $(inst_i18ndir)/, \
- 			      $(addsuffix .gz, $(charmaps)) \
--			      $(locales))
-+			      $(locales)) \
-+                   $(inst_i18ndir)/SUPPORTED
- 
- tests: $(objdir)/iconvdata/gconv-modules
- 
-@@ -195,6 +196,14 @@ endif
- 
- include SUPPORTED
- 
-+$(inst_i18ndir)/SUPPORTED: SUPPORTED $(+force)
-+	for locale in $(SUPPORTED-LOCALES); do \
-+		[ $$locale = true ] && continue; \
-+		echo $$locale | sed 's,/, ,' >> LOCALES; \
-+	done
-+	$(make-target-directory)
-+	$(INSTALL_DATA) LOCALES $@
-+
- INSTALL-SUPPORTED-LOCALES=$(addprefix install-, $(SUPPORTED-LOCALES))
- 
- # Sometimes the whole collection of locale files should be installed.
diff --git a/gnu/packages/patches/glibc-2.28-git-fixes.patch b/gnu/packages/patches/glibc-2.28-git-fixes.patch
deleted file mode 100644
index 7e370ef0b1..0000000000
--- a/gnu/packages/patches/glibc-2.28-git-fixes.patch
+++ /dev/null
@@ -1,248 +0,0 @@
-This file contains fixes from the "release/2.28/master" branch:
-https://sourceware.org/git/?p=glibc.git;a=shortlog;h=refs/heads/release/2.28/master
-
-Currently we have these commits (sans tests and ChangeLog updates):
-7f11842e7483da7aa9fa3031be122021978ef600
-726e1554ce4db5e35af41cb0110c54c5e1232054
-4b25485f03158959cff45379eecc1d73c7dcdd11
-d05b05d1570ba3ae354a2f5a3cfeefb373b09979
-bfcfa22589f2b4277a65e60c6b736b6bbfbd87d0
-2f498f3d140ab5152bd784df2be7af7d9c5e63ed
-
-diff --git a/htl/Versions b/htl/Versions
-index 6a63a1b8a1..c5a616da10 100644
---- a/htl/Versions
-+++ b/htl/Versions
-@@ -150,6 +150,8 @@ libpthread {
-     __cthread_keycreate;
-     __cthread_getspecific;
-     __cthread_setspecific;
-+    __pthread_getspecific;
-+    __pthread_setspecific;
-     __pthread_getattr_np;
-     __pthread_attr_getstack;
-   }
-
-diff --git a/sysdeps/htl/pt-getspecific.c b/sysdeps/htl/pt-getspecific.c
-index a0227a67f6..64ddf9551a 100644
---- a/sysdeps/htl/pt-getspecific.c
-+++ b/sysdeps/htl/pt-getspecific.c
-@@ -36,3 +36,4 @@ __pthread_getspecific (pthread_key_t key)
-   return self->thread_specifics[key];
- }
- strong_alias (__pthread_getspecific, pthread_getspecific);
-+hidden_def (__pthread_getspecific)
-diff --git a/sysdeps/htl/pt-setspecific.c b/sysdeps/htl/pt-setspecific.c
-index a46a12f157..02aff417ef 100644
---- a/sysdeps/htl/pt-setspecific.c
-+++ b/sysdeps/htl/pt-setspecific.c
-@@ -48,3 +48,4 @@ __pthread_setspecific (pthread_key_t key, const void *value)
-   return 0;
- }
- strong_alias (__pthread_setspecific, pthread_setspecific);
-+hidden_def (__pthread_setspecific)
-diff --git a/sysdeps/htl/pthreadP.h b/sysdeps/htl/pthreadP.h
-index 132ac1718e..71c2fcd9c6 100644
---- a/sysdeps/htl/pthreadP.h
-+++ b/sysdeps/htl/pthreadP.h
-@@ -68,6 +68,8 @@ struct __pthread_cancelation_handler **___pthread_get_cleanup_stack (void) attri
- 
- #if IS_IN (libpthread)
- hidden_proto (__pthread_key_create)
-+hidden_proto (__pthread_getspecific)
-+hidden_proto (__pthread_setspecific)
- hidden_proto (_pthread_mutex_init)
- #endif
- 
-diff --git a/sysdeps/unix/sysv/linux/getdents64.c b/sysdeps/unix/sysv/linux/getdents64.c
-index 3bde0cf4f0..bc140b5a7f 100644
---- a/sysdeps/unix/sysv/linux/getdents64.c
-+++ b/sysdeps/unix/sysv/linux/getdents64.c
-@@ -33,41 +33,80 @@ strong_alias (__getdents64, __getdents)
- # include <shlib-compat.h>
- 
- # if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
--# include <olddirent.h>
-+#  include <olddirent.h>
-+#  include <unistd.h>
- 
--/* kernel definition of as of 3.2.  */
--struct compat_linux_dirent
-+static ssize_t
-+handle_overflow (int fd, __off64_t offset, ssize_t count)
- {
--  /* Both d_ino and d_off are compat_ulong_t which are defined in all
--     architectures as 'u32'.  */
--  uint32_t        d_ino;
--  uint32_t        d_off;
--  unsigned short  d_reclen;
--  char            d_name[1];
--};
-+  /* If this is the first entry in the buffer, we can report the
-+     error.  */
-+  if (count == 0)
-+    {
-+      __set_errno (EOVERFLOW);
-+      return -1;
-+    }
-+
-+  /* Otherwise, seek to the overflowing entry, so that the next call
-+     will report the error, and return the data read so far..  */
-+  if (__lseek64 (fd, offset, SEEK_SET) != 0)
-+    return -1;
-+  return count;
-+}
- 
- ssize_t
- __old_getdents64 (int fd, char *buf, size_t nbytes)
- {
--  ssize_t retval = INLINE_SYSCALL_CALL (getdents, fd, buf, nbytes);
-+  /* We do not move the individual directory entries.  This is only
-+     possible if the target type (struct __old_dirent64) is smaller
-+     than the source type.  */
-+  _Static_assert (offsetof (struct __old_dirent64, d_name)
-+		  <= offsetof (struct dirent64, d_name),
-+		  "__old_dirent64 is larger than dirent64");
-+  _Static_assert (__alignof__ (struct __old_dirent64)
-+		  <= __alignof__ (struct dirent64),
-+		  "alignment of __old_dirent64 is larger than dirent64");
- 
--  /* The kernel added the d_type value after the name.  Change this now.  */
--  if (retval != -1)
-+  ssize_t retval = INLINE_SYSCALL_CALL (getdents64, fd, buf, nbytes);
-+  if (retval > 0)
-     {
--      union
--      {
--	struct compat_linux_dirent k;
--	struct dirent u;
--      } *kbuf = (void *) buf;
--
--      while ((char *) kbuf < buf + retval)
-+      char *p = buf;
-+      char *end = buf + retval;
-+      while (p < end)
- 	{
--	  char d_type = *((char *) kbuf + kbuf->k.d_reclen - 1);
--	  memmove (kbuf->u.d_name, kbuf->k.d_name,
--		   strlen (kbuf->k.d_name) + 1);
--	  kbuf->u.d_type = d_type;
-+	  struct dirent64 *source = (struct dirent64 *) p;
-+
-+	  /* Copy out the fixed-size data.  */
-+	  __ino_t ino = source->d_ino;
-+	  __off64_t offset = source->d_off;
-+	  unsigned int reclen = source->d_reclen;
-+	  unsigned char type = source->d_type;
-+
-+	  /* Check for ino_t overflow.  */
-+	  if (__glibc_unlikely (ino != source->d_ino))
-+	    return handle_overflow (fd, offset, p - buf);
-+
-+	  /* Convert to the target layout.  Use a separate struct and
-+	     memcpy to side-step aliasing issues.  */
-+	  struct __old_dirent64 result;
-+	  result.d_ino = ino;
-+	  result.d_off = offset;
-+	  result.d_reclen = reclen;
-+	  result.d_type = type;
-+
-+	  /* Write the fixed-sized part of the result to the
-+	     buffer.  */
-+	  size_t result_name_offset = offsetof (struct __old_dirent64, d_name);
-+	  memcpy (p, &result, result_name_offset);
-+
-+	  /* Adjust the position of the name if necessary.  Copy
-+	     everything until the end of the record, including the
-+	     terminating NUL byte.  */
-+	  if (result_name_offset != offsetof (struct dirent64, d_name))
-+	    memmove (p + result_name_offset, source->d_name,
-+		     reclen - offsetof (struct dirent64, d_name));
- 
--	  kbuf = (void *) ((char *) kbuf + kbuf->k.d_reclen);
-+	  p += reclen;
- 	}
-      }
-   return retval;
-
-diff --git a/misc/error.c b/misc/error.c
-index b4e8b6c938..03378e2f2a 100644
---- a/misc/error.c
-+++ b/misc/error.c
-@@ -319,6 +319,7 @@ error (int status, int errnum, const char *message, ...)
- 
-   va_start (args, message);
-   error_tail (status, errnum, message, args);
-+  va_end (args);
- 
- #ifdef _LIBC
-   _IO_funlockfile (stderr);
-@@ -390,6 +391,7 @@ error_at_line (int status, int errnum, const char *file_name,
- 
-   va_start (args, message);
-   error_tail (status, errnum, message, args);
-+  va_end (args);
- 
- #ifdef _LIBC
-   _IO_funlockfile (stderr);
-
-diff --git a/nscd/nscd_conf.c b/nscd/nscd_conf.c
-index 265a02434d..7293b795b6 100644
---- a/nscd/nscd_conf.c
-+++ b/nscd/nscd_conf.c
-@@ -190,7 +190,10 @@ nscd_parse_file (const char *fname, struct database_dyn dbs[lastdb])
- 	  if (!arg1)
- 	    error (0, 0, _("Must specify user name for server-user option"));
- 	  else
--	    server_user = xstrdup (arg1);
-+	    {
-+	      free ((char *) server_user);
-+	      server_user = xstrdup (arg1);
-+	    }
- 	}
-       else if (strcmp (entry, "stat-user") == 0)
- 	{
-@@ -198,6 +201,7 @@ nscd_parse_file (const char *fname, struct database_dyn dbs[lastdb])
- 	    error (0, 0, _("Must specify user name for stat-user option"));
- 	  else
- 	    {
-+	      free ((char *) stat_user);
- 	      stat_user = xstrdup (arg1);
- 
- 	      struct passwd *pw = getpwnam (stat_user);
-
-diff --git a/nss/nss_files/files-alias.c b/nss/nss_files/files-alias.c
-index cfd34b66b9..35b0bfc5d2 100644
---- a/nss/nss_files/files-alias.c
-+++ b/nss/nss_files/files-alias.c
-@@ -221,6 +221,13 @@ get_next_alias (FILE *stream, const char *match, struct aliasent *result,
- 			{
- 			  while (! feof_unlocked (listfile))
- 			    {
-+			      if (room_left < 2)
-+				{
-+				  free (old_line);
-+				  fclose (listfile);
-+				  goto no_more_room;
-+				}
-+
- 			      first_unused[room_left - 1] = '\xff';
- 			      line = fgets_unlocked (first_unused, room_left,
- 						     listfile);
-@@ -229,6 +236,7 @@ get_next_alias (FILE *stream, const char *match, struct aliasent *result,
- 			      if (first_unused[room_left - 1] != '\xff')
- 				{
- 				  free (old_line);
-+				  fclose (listfile);
- 				  goto no_more_room;
- 				}
- 
-@@ -256,6 +264,7 @@ get_next_alias (FILE *stream, const char *match, struct aliasent *result,
- 						       + __alignof__ (char *)))
- 					{
- 					  free (old_line);
-+					  fclose (listfile);
- 					  goto no_more_room;
- 					}
- 				      room_left -= ((first_unused - cp)
-
diff --git a/gnu/packages/patches/glibc-2.28-supported-locales.patch b/gnu/packages/patches/glibc-2.28-supported-locales.patch
deleted file mode 100644
index 2888052bb8..0000000000
--- a/gnu/packages/patches/glibc-2.28-supported-locales.patch
+++ /dev/null
@@ -1,33 +0,0 @@
-This patch is taken from debian's glibc package (generate-supported.mk).
-It install the localedata/SUPPORTED file of the glibc. This file lists
-all the supported locales of the glibc.
-
-diff --git a/localedata/Makefile.old b/localedata/Makefile
-index 34877c0..a61d9b9 100644
---- a/localedata/Makefile.old
-+++ b/localedata/Makefile
-@@ -91,7 +91,8 @@ endif
- # Files to install.
- install-others := $(addprefix $(inst_i18ndir)/, \
- 			      $(addsuffix .gz, $(charmaps)) \
--			      $(locales))
-+			      $(locales)) \
-+                   $(inst_i18ndir)/SUPPORTED
- 
- tests: $(objdir)/iconvdata/gconv-modules
- 
-@@ -195,6 +196,14 @@ endif
- 
- include SUPPORTED
- 
-+$(inst_i18ndir)/SUPPORTED: SUPPORTED $(+force)
-+	for locale in $(SUPPORTED-LOCALES); do \
-+		[ $$locale = true ] && continue; \
-+		echo $$locale | sed 's,/, ,' >> LOCALES; \
-+	done
-+	$(make-target-directory)
-+	$(INSTALL_DATA) LOCALES $@
-+
- INSTALL-SUPPORTED-LOCALES=$(addprefix install-, $(SUPPORTED-LOCALES))
- 
- # Sometimes the whole collection of locale files should be installed.
diff --git a/gnu/packages/patches/glibc-2.31-hurd-clock_gettime_monotonic.patch b/gnu/packages/patches/glibc-2.31-hurd-clock_gettime_monotonic.patch
new file mode 100644
index 0000000000..1c3fe427f9
--- /dev/null
+++ b/gnu/packages/patches/glibc-2.31-hurd-clock_gettime_monotonic.patch
@@ -0,0 +1,84 @@
+This is needed to run Python on the Hurd, especially during the build of
+python-boot0.
+
+Adapted from https://salsa.debian.org/glibc-team/glibc/-/blob/glibc-2.31/debian/patches/hurd-i386/unsubmitted-clock_t_centiseconds.diff
+
+Use the realtime clock for the monotonic clock. This is of course not a proper
+implementation (which is being done in Mach), but will permit to fix at least
+the iceweasel stack.
+
+vlc however doesn't build when _POSIX_CLOCK_SELECTION is enabled but
+_POSIX_TIMERS is not, and they refuse to fix that (see #765578), so disable the
+former.
+
+From 0aa1dfd580cf9ad7b812c307b128decb782b825f Mon Sep 17 00:00:00 2001
+From: Jan Nieuwenhuizen <janneke@gnu.org>
+Date: Mon, 2 Mar 2020 18:59:04 +0100
+Subject: [PATCH 2/2] Use realtime clock for the monotonic clock.
+
+---
+ sysdeps/mach/clock_gettime.c       | 2 +-
+ sysdeps/mach/hurd/bits/posix_opt.h | 6 +++---
+ sysdeps/posix/clock_getres.c       | 1 +
+ sysdeps/pthread/timer_create.c     | 2 +-
+ 4 files changed, 6 insertions(+), 5 deletions(-)
+
+diff --git a/sysdeps/mach/clock_gettime.c b/sysdeps/mach/clock_gettime.c
+index ac3547df3c..af8681ba4e 100644
+--- a/sysdeps/mach/clock_gettime.c
++++ b/sysdeps/mach/clock_gettime.c
+@@ -25,7 +25,7 @@
+ int
+ __clock_gettime (clockid_t clock_id, struct timespec *ts)
+ {
+-  if (clock_id != CLOCK_REALTIME)
++  if (clock_id != CLOCK_MONOTONIC && clock_id != CLOCK_REALTIME)
+     {
+       errno = EINVAL;
+       return -1;
+diff --git a/sysdeps/mach/hurd/bits/posix_opt.h b/sysdeps/mach/hurd/bits/posix_opt.h
+index 0050151332..27b3a28ab7 100644
+--- a/sysdeps/mach/hurd/bits/posix_opt.h
++++ b/sysdeps/mach/hurd/bits/posix_opt.h
+@@ -163,10 +163,10 @@
+ #define _POSIX_THREAD_PROCESS_SHARED	-1
+ 
+ /* The monotonic clock might be available.  */
+-#define _POSIX_MONOTONIC_CLOCK	0
++#define _POSIX_MONOTONIC_CLOCK	200809L
+ 
+-/* The clock selection interfaces are available.  */
+-#define _POSIX_CLOCK_SELECTION	200809L
++/* The clock selection interfaces are not really available yet.  */
++#define _POSIX_CLOCK_SELECTION	-1
+ 
+ /* Advisory information interfaces could be available in future.  */
+ #define _POSIX_ADVISORY_INFO	0
+diff --git a/sysdeps/posix/clock_getres.c b/sysdeps/posix/clock_getres.c
+index fcd79fd554..1dd02aa449 100644
+--- a/sysdeps/posix/clock_getres.c
++++ b/sysdeps/posix/clock_getres.c
+@@ -52,6 +52,7 @@ __clock_getres (clockid_t clock_id, struct timespec *res)
+   switch (clock_id)
+     {
+     case CLOCK_REALTIME:
++    case CLOCK_MONOTONIC:
+       retval = realtime_getres (res);
+       break;
+ 
+diff --git a/sysdeps/pthread/timer_create.c b/sysdeps/pthread/timer_create.c
+index 9d8a9ea8ae..3430582c09 100644
+--- a/sysdeps/pthread/timer_create.c
++++ b/sysdeps/pthread/timer_create.c
+@@ -48,7 +48,7 @@ timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid)
+       return -1;
+     }
+ 
+-  if (clock_id != CLOCK_REALTIME)
++  if (clock_id != CLOCK_REALTIME && clock_id != CLOCK_MONOTONIC)
+     {
+       __set_errno (EINVAL);
+       return -1;
+-- 
+2.24.0
+
diff --git a/gnu/packages/patches/glibc-bootstrap-system.patch b/gnu/packages/patches/glibc-bootstrap-system.patch
index db6457e939..9c0fac3ff5 100644
--- a/gnu/packages/patches/glibc-bootstrap-system.patch
+++ b/gnu/packages/patches/glibc-bootstrap-system.patch
@@ -3,17 +3,10 @@ and popen(3) need to be tweaked to use the right shell.  For the bootstrap
 glibc, we just use whatever `sh' can be found in $PATH.  The final glibc
 instead uses the hard-coded absolute file name of `bash'.
 
---- a/sysdeps/posix/system.c
-+++ b/sysdeps/posix/system.c
-@@ -140,7 +140,7 @@ do_system (const char *line)
-   __posix_spawnattr_setflags (&spawn_attr,
- 			      POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETSIGMASK);
- 
--  status = __posix_spawn (&pid, SHELL_PATH, 0, &spawn_attr,
-+  status = __posix_spawnp (&pid, SHELL_NAME, 0, &spawn_attr,
- 			  (char *const[]){ (char*) SHELL_NAME,
- 					   (char*) "-c",
- 					   (char *) line, NULL },
+In addition, status should be initialized to 0 and not -1.
+
+diff --git a/libio/iopopen.c b/libio/iopopen.c
+index ebc381ed7c..e0d3ed1bc3 100644
 --- a/libio/iopopen.c
 +++ b/libio/iopopen.c
 @@ -85,7 +85,7 @@ spawn_process (posix_spawn_file_actions_t *fa, FILE *fp, const char *command,
@@ -25,6 +18,28 @@ instead uses the hard-coded absolute file name of `bash'.
  		     (char *const[]){ (char*) "sh", (char*) "-c",
  		     (char *) command, NULL }, __environ) != 0)
      return false;
+diff --git a/sysdeps/posix/system.c b/sysdeps/posix/system.c
+index a03f478fc7..94da6facf3 100644
+--- a/sysdeps/posix/system.c
++++ b/sysdeps/posix/system.c
+@@ -101,7 +101,7 @@ cancel_handler (void *arg)
+ static int
+ do_system (const char *line)
+ {
+-  int status = -1;
++  int status = 0;
+   int ret;
+   pid_t pid;
+   struct sigaction sa;
+@@ -145,7 +145,7 @@ do_system (const char *line)
+   __posix_spawnattr_setflags (&spawn_attr,
+ 			      POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETSIGMASK);
+ 
+-  ret = __posix_spawn (&pid, SHELL_PATH, 0, &spawn_attr,
++  ret = __posix_spawnp (&pid, SHELL_NAME, 0, &spawn_attr,
+ 		       (char *const[]){ (char *) SHELL_NAME,
+ 					(char *) "-c",
+ 					(char *) line, NULL },
 
 --- a/include/spawn.h
 +++ b/include/spawn.h
diff --git a/gnu/packages/patches/glibc-cross-objcopy.patch b/gnu/packages/patches/glibc-cross-objcopy.patch
new file mode 100644
index 0000000000..e4c693aa44
--- /dev/null
+++ b/gnu/packages/patches/glibc-cross-objcopy.patch
@@ -0,0 +1,159 @@
+Use 'powerpc64le-linux-gnu-objcopy' rather than 'objcopy' when cross-compiling
+to powerpc64le-linux-gnu: <https://issues.guix.gnu.org/49417>.
+
+Patch submitted:
+  <https://sourceware.org/pipermail/libc-alpha/2021-July/128333.html>
+
+diff --git a/aclocal.m4 b/aclocal.m4
+index 13a791ffde..5b370c07a2 100644
+--- a/aclocal.m4
++++ b/aclocal.m4
+@@ -118,8 +118,6 @@ AS=`$CC -print-prog-name=as`
+ LD=`$CC -print-prog-name=ld`
+ AR=`$CC -print-prog-name=ar`
+ AC_SUBST(AR)
+-OBJCOPY=`$CC -print-prog-name=objcopy`
+-AC_SUBST(OBJCOPY)
+ GPROF=`$CC -print-prog-name=gprof`
+ AC_SUBST(GPROF)
+ 
+diff --git a/configure b/configure
+index fe0eda1cd5..3a08270734 100755
+--- a/configure
++++ b/configure
+@@ -654,7 +654,6 @@ MAKE
+ LD
+ AS
+ GPROF
+-OBJCOPY
+ AR
+ LN_S
+ INSTALL_DATA
+@@ -689,6 +688,7 @@ sysheaders
+ ac_ct_CXX
+ CXXFLAGS
+ CXX
++OBJCOPY
+ OBJDUMP
+ READELF
+ CPP
+@@ -3054,6 +3054,98 @@ else
+   OBJDUMP="$ac_cv_prog_OBJDUMP"
+ fi
+ 
++if test -n "$ac_tool_prefix"; then
++  # Extract the first word of "${ac_tool_prefix}objcopy", so it can be a program name with args.
++set dummy ${ac_tool_prefix}objcopy; ac_word=$2
++{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
++$as_echo_n "checking for $ac_word... " >&6; }
++if ${ac_cv_prog_OBJCOPY+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++  if test -n "$OBJCOPY"; then
++  ac_cv_prog_OBJCOPY="$OBJCOPY" # Let the user override the test.
++else
++as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
++for as_dir in $PATH
++do
++  IFS=$as_save_IFS
++  test -z "$as_dir" && as_dir=.
++    for ac_exec_ext in '' $ac_executable_extensions; do
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
++    ac_cv_prog_OBJCOPY="${ac_tool_prefix}objcopy"
++    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
++    break 2
++  fi
++done
++  done
++IFS=$as_save_IFS
++
++fi
++fi
++OBJCOPY=$ac_cv_prog_OBJCOPY
++if test -n "$OBJCOPY"; then
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJCOPY" >&5
++$as_echo "$OBJCOPY" >&6; }
++else
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
++$as_echo "no" >&6; }
++fi
++
++
++fi
++if test -z "$ac_cv_prog_OBJCOPY"; then
++  ac_ct_OBJCOPY=$OBJCOPY
++  # Extract the first word of "objcopy", so it can be a program name with args.
++set dummy objcopy; ac_word=$2
++{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
++$as_echo_n "checking for $ac_word... " >&6; }
++if ${ac_cv_prog_ac_ct_OBJCOPY+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++  if test -n "$ac_ct_OBJCOPY"; then
++  ac_cv_prog_ac_ct_OBJCOPY="$ac_ct_OBJCOPY" # Let the user override the test.
++else
++as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
++for as_dir in $PATH
++do
++  IFS=$as_save_IFS
++  test -z "$as_dir" && as_dir=.
++    for ac_exec_ext in '' $ac_executable_extensions; do
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
++    ac_cv_prog_ac_ct_OBJCOPY="objcopy"
++    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
++    break 2
++  fi
++done
++  done
++IFS=$as_save_IFS
++
++fi
++fi
++ac_ct_OBJCOPY=$ac_cv_prog_ac_ct_OBJCOPY
++if test -n "$ac_ct_OBJCOPY"; then
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJCOPY" >&5
++$as_echo "$ac_ct_OBJCOPY" >&6; }
++else
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
++$as_echo "no" >&6; }
++fi
++
++  if test "x$ac_ct_OBJCOPY" = x; then
++    OBJCOPY="false"
++  else
++    case $cross_compiling:$ac_tool_warned in
++yes:)
++{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
++$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
++ac_tool_warned=yes ;;
++esac
++    OBJCOPY=$ac_ct_OBJCOPY
++  fi
++else
++  OBJCOPY="$ac_cv_prog_OBJCOPY"
++fi
++
+ 
+ # We need the C++ compiler only for testing.
+ ac_ext=cpp
+@@ -4645,8 +4737,6 @@ AS=`$CC -print-prog-name=as`
+ LD=`$CC -print-prog-name=ld`
+ AR=`$CC -print-prog-name=ar`
+ 
+-OBJCOPY=`$CC -print-prog-name=objcopy`
+-
+ GPROF=`$CC -print-prog-name=gprof`
+ 
+ 
+diff --git a/configure.ac b/configure.ac
+index 924af12738..2148cd2ec8 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -53,6 +53,7 @@ AC_SUBST(cross_compiling)
+ AC_PROG_CPP
+ AC_CHECK_TOOL(READELF, readelf, false)
+ AC_CHECK_TOOL(OBJDUMP, objdump, false)
++AC_CHECK_TOOL(OBJCOPY, objcopy, false)
+ 
+ # We need the C++ compiler only for testing.
+ AC_PROG_CXX
diff --git a/gnu/packages/patches/glibc-cross-objdump.patch b/gnu/packages/patches/glibc-cross-objdump.patch
new file mode 100644
index 0000000000..1660d915f7
--- /dev/null
+++ b/gnu/packages/patches/glibc-cross-objdump.patch
@@ -0,0 +1,159 @@
+Arrange so that glibc uses 'TRIPLET-objdump -f' rather than 'objdump -f'
+to determine the 'OUTPUT_FORMAT' value in libc.so when cross-compiling.
+
+Patch submitted upstream:
+  <https://sourceware.org/pipermail/libc-alpha/2021-July/128333.html>.
+
+diff --git a/aclocal.m4 b/aclocal.m4
+index c195c4db56..13a791ffde 100644
+--- a/aclocal.m4
++++ b/aclocal.m4
+@@ -118,8 +118,6 @@ AS=`$CC -print-prog-name=as`
+ LD=`$CC -print-prog-name=ld`
+ AR=`$CC -print-prog-name=ar`
+ AC_SUBST(AR)
+-OBJDUMP=`$CC -print-prog-name=objdump`
+-AC_SUBST(OBJDUMP)
+ OBJCOPY=`$CC -print-prog-name=objcopy`
+ AC_SUBST(OBJCOPY)
+ GPROF=`$CC -print-prog-name=gprof`
+diff --git a/configure b/configure
+index 9619c10991..fe0eda1cd5 100755
+--- a/configure
++++ b/configure
+@@ -655,7 +655,6 @@ LD
+ AS
+ GPROF
+ OBJCOPY
+-OBJDUMP
+ AR
+ LN_S
+ INSTALL_DATA
+@@ -690,6 +689,7 @@ sysheaders
+ ac_ct_CXX
+ CXXFLAGS
+ CXX
++OBJDUMP
+ READELF
+ CPP
+ cross_compiling
+@@ -2962,6 +2962,98 @@ else
+   READELF="$ac_cv_prog_READELF"
+ fi
+ 
++if test -n "$ac_tool_prefix"; then
++  # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
++set dummy ${ac_tool_prefix}objdump; ac_word=$2
++{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
++$as_echo_n "checking for $ac_word... " >&6; }
++if ${ac_cv_prog_OBJDUMP+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++  if test -n "$OBJDUMP"; then
++  ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
++else
++as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
++for as_dir in $PATH
++do
++  IFS=$as_save_IFS
++  test -z "$as_dir" && as_dir=.
++    for ac_exec_ext in '' $ac_executable_extensions; do
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
++    ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
++    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
++    break 2
++  fi
++done
++  done
++IFS=$as_save_IFS
++
++fi
++fi
++OBJDUMP=$ac_cv_prog_OBJDUMP
++if test -n "$OBJDUMP"; then
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
++$as_echo "$OBJDUMP" >&6; }
++else
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
++$as_echo "no" >&6; }
++fi
++
++
++fi
++if test -z "$ac_cv_prog_OBJDUMP"; then
++  ac_ct_OBJDUMP=$OBJDUMP
++  # Extract the first word of "objdump", so it can be a program name with args.
++set dummy objdump; ac_word=$2
++{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
++$as_echo_n "checking for $ac_word... " >&6; }
++if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++  if test -n "$ac_ct_OBJDUMP"; then
++  ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
++else
++as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
++for as_dir in $PATH
++do
++  IFS=$as_save_IFS
++  test -z "$as_dir" && as_dir=.
++    for ac_exec_ext in '' $ac_executable_extensions; do
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
++    ac_cv_prog_ac_ct_OBJDUMP="objdump"
++    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
++    break 2
++  fi
++done
++  done
++IFS=$as_save_IFS
++
++fi
++fi
++ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
++if test -n "$ac_ct_OBJDUMP"; then
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
++$as_echo "$ac_ct_OBJDUMP" >&6; }
++else
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
++$as_echo "no" >&6; }
++fi
++
++  if test "x$ac_ct_OBJDUMP" = x; then
++    OBJDUMP="false"
++  else
++    case $cross_compiling:$ac_tool_warned in
++yes:)
++{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
++$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
++ac_tool_warned=yes ;;
++esac
++    OBJDUMP=$ac_ct_OBJDUMP
++  fi
++else
++  OBJDUMP="$ac_cv_prog_OBJDUMP"
++fi
++
+ 
+ # We need the C++ compiler only for testing.
+ ac_ext=cpp
+@@ -4553,8 +4645,6 @@ AS=`$CC -print-prog-name=as`
+ LD=`$CC -print-prog-name=ld`
+ AR=`$CC -print-prog-name=ar`
+ 
+-OBJDUMP=`$CC -print-prog-name=objdump`
+-
+ OBJCOPY=`$CC -print-prog-name=objcopy`
+ 
+ GPROF=`$CC -print-prog-name=gprof`
+diff --git a/configure.ac b/configure.ac
+index 34ecbba540..924af12738 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -52,6 +52,7 @@ fi
+ AC_SUBST(cross_compiling)
+ AC_PROG_CPP
+ AC_CHECK_TOOL(READELF, readelf, false)
++AC_CHECK_TOOL(OBJDUMP, objdump, false)
+ 
+ # We need the C++ compiler only for testing.
+ AC_PROG_CXX
diff --git a/gnu/packages/patches/glibc-dl-cache.patch b/gnu/packages/patches/glibc-dl-cache.patch
new file mode 100644
index 0000000000..68c3a94846
--- /dev/null
+++ b/gnu/packages/patches/glibc-dl-cache.patch
@@ -0,0 +1,140 @@
+Read the shared library cache relative to $ORIGIN instead of reading
+from /etc/ld.so.cache.  Also arrange so that this cache takes
+precedence over RUNPATH.
+
+diff --git a/elf/dl-cache.c b/elf/dl-cache.c
+index 93d185e788..e0760a1f40 100644
+--- a/elf/dl-cache.c
++++ b/elf/dl-cache.c
+@@ -171,6 +171,51 @@ _dl_cache_libcmp (const char *p1, const char *p2)
+   return *p1 - *p2;
+ }
+ 
++/* Special value representing the lack of an ld.so cache.  */
++static const char ld_so_cache_lacking[] = "/ld.so cache is lacking";
++
++/* Return the per-application ld.so cache, relative to $ORIGIN, or NULL if
++   that fails for some reason.  Do not return the system-wide LD_SO_CACHE
++   since on a foreign distro it would contain invalid information.  */
++static const char *
++ld_so_cache (void)
++{
++  static const char *loader_cache;
++
++  if (loader_cache == NULL)
++    {
++      static const char store[] = @STORE_DIRECTORY@;
++      const char *origin = _dl_get_origin ();
++
++      /* Check whether ORIGIN is something like "/gnu/store/…-foo/bin".  */
++      if (strncmp (store, origin, strlen (store)) == 0
++	  && origin[sizeof store - 1] == '/')
++	{
++	  char *store_item_end = strchr (origin + sizeof store, '/');
++
++	  if (store_item_end != NULL)
++	    {
++	      static const char suffix[] = "/etc/ld.so.cache";
++	      size_t store_item_len = store_item_end - origin;
++
++	      /* Note: We can't use 'malloc' because it can be interposed.
++		 Likewise, 'strncpy' is not available.  */
++	      char *cache = alloca (strlen (origin) + sizeof suffix);
++
++	      strcpy (cache, origin);
++	      strcpy (cache + store_item_len, suffix);
++
++	      loader_cache = __strdup (cache) ?: ld_so_cache_lacking;
++	    }
++	  else
++	    loader_cache = ld_so_cache_lacking;
++	}
++      else
++	loader_cache = ld_so_cache_lacking;
++    }
++
++  return loader_cache;
++}
+ 
+ /* Look up NAME in ld.so.cache and return the file name stored there, or null
+    if none is found.  The cache is loaded if it was not already.  If loading
+@@ -190,12 +235,15 @@ _dl_load_cache_lookup (const char *name)
+ 
+   /* Print a message if the loading of libs is traced.  */
+   if (__glibc_unlikely (GLRO(dl_debug_mask) & DL_DEBUG_LIBS))
+-    _dl_debug_printf (" search cache=%s\n", LD_SO_CACHE);
++    _dl_debug_printf (" search cache=%s\n", ld_so_cache ());
++
++  if (__glibc_unlikely (ld_so_cache () == ld_so_cache_lacking))
++    return NULL;
+ 
+   if (cache == NULL)
+     {
+       /* Read the contents of the file.  */
+-      void *file = _dl_sysdep_read_whole_file (LD_SO_CACHE, &cachesize,
++      void *file = _dl_sysdep_read_whole_file (ld_so_cache (), &cachesize,
+ 					       PROT_READ);
+ 
+       /* We can handle three different cache file formats here:
+diff --git a/elf/dl-load.c b/elf/dl-load.c
+index f3201e7c14..a69aec3428 100644
+--- a/elf/dl-load.c
++++ b/elf/dl-load.c
+@@ -2152,28 +2152,6 @@ _dl_map_object (struct link_map *loader, const char *name,
+ 			loader ?: GL(dl_ns)[LM_ID_BASE]._ns_loaded,
+ 			LA_SER_LIBPATH, &found_other_class);
+ 
+-      /* Look at the RUNPATH information for this binary.  */
+-      if (fd == -1 && loader != NULL
+-	  && cache_rpath (loader, &loader->l_runpath_dirs,
+-			  DT_RUNPATH, "RUNPATH"))
+-	fd = open_path (name, namelen, mode,
+-			&loader->l_runpath_dirs, &realname, &fb, loader,
+-			LA_SER_RUNPATH, &found_other_class);
+-
+-      if (fd == -1)
+-        {
+-          realname = _dl_sysdep_open_object (name, namelen, &fd);
+-          if (realname != NULL)
+-            {
+-              fd = open_verify (realname, fd,
+-                                &fb, loader ?: GL(dl_ns)[nsid]._ns_loaded,
+-                                LA_SER_CONFIG, mode, &found_other_class,
+-                                false);
+-              if (fd == -1)
+-                free (realname);
+-            }
+-        }
+-
+ #ifdef USE_LDCONFIG
+       if (fd == -1
+ 	  && (__glibc_likely ((mode & __RTLD_SECURE) == 0)
+@@ -2232,6 +2210,28 @@ _dl_map_object (struct link_map *loader, const char *name,
+ 	}
+ #endif
+ 
++      /* Look at the RUNPATH information for this binary.  */
++      if (fd == -1 && loader != NULL
++	  && cache_rpath (loader, &loader->l_runpath_dirs,
++			  DT_RUNPATH, "RUNPATH"))
++	fd = open_path (name, namelen, mode,
++			&loader->l_runpath_dirs, &realname, &fb, loader,
++			LA_SER_RUNPATH, &found_other_class);
++
++      if (fd == -1)
++        {
++          realname = _dl_sysdep_open_object (name, namelen, &fd);
++          if (realname != NULL)
++            {
++              fd = open_verify (realname, fd,
++                                &fb, loader ?: GL(dl_ns)[nsid]._ns_loaded,
++                                LA_SER_CONFIG, mode, &found_other_class,
++                                false);
++              if (fd == -1)
++                free (realname);
++            }
++        }
++
+       /* Finally, try the default path.  */
+       if (fd == -1
+ 	  && ((l = loader ?: GL(dl_ns)[nsid]._ns_loaded) == NULL
diff --git a/gnu/packages/patches/glibc-hurd-clock_gettime_monotonic.patch b/gnu/packages/patches/glibc-hurd-clock_gettime_monotonic.patch
index 1c3fe427f9..e31f99a1ce 100644
--- a/gnu/packages/patches/glibc-hurd-clock_gettime_monotonic.patch
+++ b/gnu/packages/patches/glibc-hurd-clock_gettime_monotonic.patch
@@ -24,18 +24,17 @@ Subject: [PATCH 2/2] Use realtime clock for the monotonic clock.
  4 files changed, 6 insertions(+), 5 deletions(-)
 
 diff --git a/sysdeps/mach/clock_gettime.c b/sysdeps/mach/clock_gettime.c
-index ac3547df3c..af8681ba4e 100644
+index 6862fc8c..be1449bf 100644
 --- a/sysdeps/mach/clock_gettime.c
 +++ b/sysdeps/mach/clock_gettime.c
-@@ -25,7 +25,7 @@
- int
- __clock_gettime (clockid_t clock_id, struct timespec *ts)
- {
--  if (clock_id != CLOCK_REALTIME)
-+  if (clock_id != CLOCK_MONOTONIC && clock_id != CLOCK_REALTIME)
-     {
-       errno = EINVAL;
-       return -1;
+@@ -32,6 +32,7 @@ __clock_gettime (clockid_t clock_id, struct timespec *ts)
+   switch (clock_id) {
+ 
+     case CLOCK_REALTIME:
++    case CLOCK_MONOTONIC:
+       {
+ 	/* __host_get_time can only fail if passed an invalid host_t.
+ 	   __mach_host_self could theoretically fail (producing an
 diff --git a/sysdeps/mach/hurd/bits/posix_opt.h b/sysdeps/mach/hurd/bits/posix_opt.h
 index 0050151332..27b3a28ab7 100644
 --- a/sysdeps/mach/hurd/bits/posix_opt.h
diff --git a/gnu/packages/patches/gnutls-CVE-2021-20231.patch b/gnu/packages/patches/gnutls-CVE-2021-20231.patch
deleted file mode 100644
index 5186522eee..0000000000
--- a/gnu/packages/patches/gnutls-CVE-2021-20231.patch
+++ /dev/null
@@ -1,62 +0,0 @@
-From 15beb4b193b2714d88107e7dffca781798684e7e Mon Sep 17 00:00:00 2001
-From: Daiki Ueno <ueno@gnu.org>
-Date: Fri, 29 Jan 2021 14:06:05 +0100
-Subject: [PATCH 1/2] key_share: avoid use-after-free around realloc
-
-Signed-off-by: Daiki Ueno <ueno@gnu.org>
----
- lib/ext/key_share.c | 12 +++++-------
- 1 file changed, 5 insertions(+), 7 deletions(-)
-
-diff --git a/lib/ext/key_share.c b/lib/ext/key_share.c
-index ab8abf8fe..a8c4bb5cf 100644
---- a/lib/ext/key_share.c
-+++ b/lib/ext/key_share.c
-@@ -664,14 +664,14 @@ key_share_send_params(gnutls_session_t session,
- {
- 	unsigned i;
- 	int ret;
--	unsigned char *lengthp;
--	unsigned int cur_length;
- 	unsigned int generated = 0;
- 	const gnutls_group_entry_st *group;
- 	const version_entry_st *ver;
- 
- 	/* this extension is only being sent on client side */
- 	if (session->security_parameters.entity == GNUTLS_CLIENT) {
-+		unsigned int length_pos;
-+
- 		ver = _gnutls_version_max(session);
- 		if (unlikely(ver == NULL || ver->key_shares == 0))
- 			return 0;
-@@ -679,16 +679,13 @@ key_share_send_params(gnutls_session_t session,
- 		if (!have_creds_for_tls13(session))
- 			return 0;
- 
--		/* write the total length later */
--		lengthp = &extdata->data[extdata->length];
-+		length_pos = extdata->length;
- 
- 		ret =
- 		    _gnutls_buffer_append_prefix(extdata, 16, 0);
- 		if (ret < 0)
- 			return gnutls_assert_val(ret);
- 
--		cur_length = extdata->length;
--
- 		if (session->internals.hsk_flags & HSK_HRR_RECEIVED) { /* we know the group */
- 			group = get_group(session);
- 			if (unlikely(group == NULL))
-@@ -736,7 +733,8 @@ key_share_send_params(gnutls_session_t session,
- 		}
- 
- 		/* copy actual length */
--		_gnutls_write_uint16(extdata->length - cur_length, lengthp);
-+		_gnutls_write_uint16(extdata->length - length_pos - 2,
-+				     &extdata->data[length_pos]);
- 
- 	} else { /* server */
- 		ver = get_version(session);
--- 
-2.30.2
-
diff --git a/gnu/packages/patches/gnutls-CVE-2021-20232.patch b/gnu/packages/patches/gnutls-CVE-2021-20232.patch
deleted file mode 100644
index dc3a0be690..0000000000
--- a/gnu/packages/patches/gnutls-CVE-2021-20232.patch
+++ /dev/null
@@ -1,60 +0,0 @@
-From 75a937d97f4fefc6f9b08e3791f151445f551cb3 Mon Sep 17 00:00:00 2001
-From: Daiki Ueno <ueno@gnu.org>
-Date: Fri, 29 Jan 2021 14:06:23 +0100
-Subject: [PATCH 2/2] pre_shared_key: avoid use-after-free around realloc
-
-Signed-off-by: Daiki Ueno <ueno@gnu.org>
----
- lib/ext/pre_shared_key.c | 15 ++++++++++++---
- 1 file changed, 12 insertions(+), 3 deletions(-)
-
-diff --git a/lib/ext/pre_shared_key.c b/lib/ext/pre_shared_key.c
-index a042c6488..380bf39ed 100644
---- a/lib/ext/pre_shared_key.c
-+++ b/lib/ext/pre_shared_key.c
-@@ -267,7 +267,7 @@ client_send_params(gnutls_session_t session,
- 	size_t spos;
- 	gnutls_datum_t username = {NULL, 0};
- 	gnutls_datum_t user_key = {NULL, 0}, rkey = {NULL, 0};
--	gnutls_datum_t client_hello;
-+	unsigned client_hello_len;
- 	unsigned next_idx;
- 	const mac_entry_st *prf_res = NULL;
- 	const mac_entry_st *prf_psk = NULL;
-@@ -428,8 +428,7 @@ client_send_params(gnutls_session_t session,
- 	assert(extdata->length >= sizeof(mbuffer_st));
- 	assert(ext_offset >= (ssize_t)sizeof(mbuffer_st));
- 	ext_offset -= sizeof(mbuffer_st);
--	client_hello.data = extdata->data+sizeof(mbuffer_st);
--	client_hello.size = extdata->length-sizeof(mbuffer_st);
-+	client_hello_len = extdata->length-sizeof(mbuffer_st);
- 
- 	next_idx = 0;
- 
-@@ -440,6 +439,11 @@ client_send_params(gnutls_session_t session,
- 	}
- 
- 	if (prf_res && rkey.size > 0) {
-+		gnutls_datum_t client_hello;
-+
-+		client_hello.data = extdata->data+sizeof(mbuffer_st);
-+		client_hello.size = client_hello_len;
-+
- 		ret = compute_psk_binder(session, prf_res,
- 					 binders_len, binders_pos,
- 					 ext_offset, &rkey, &client_hello, 1,
-@@ -474,6 +478,11 @@ client_send_params(gnutls_session_t session,
- 	}
- 
- 	if (prf_psk && user_key.size > 0 && info) {
-+		gnutls_datum_t client_hello;
-+
-+		client_hello.data = extdata->data+sizeof(mbuffer_st);
-+		client_hello.size = client_hello_len;
-+
- 		ret = compute_psk_binder(session, prf_psk,
- 					 binders_len, binders_pos,
- 					 ext_offset, &user_key, &client_hello, 0,
--- 
-2.30.2
-
diff --git a/gnu/packages/patches/graphviz-CVE-2020-18032.patch b/gnu/packages/patches/graphviz-CVE-2020-18032.patch
deleted file mode 100644
index 4cf94a9a36..0000000000
--- a/gnu/packages/patches/graphviz-CVE-2020-18032.patch
+++ /dev/null
@@ -1,49 +0,0 @@
-Fix CVE-2020-18032:
-
-https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-18032
-https://gitlab.com/graphviz/graphviz/-/issues/1700
-
-Patch copied from upstream source repository:
-
-https://gitlab.com/graphviz/graphviz/-/commit/784411ca3655c80da0f6025ab20634b2a6ff696b
-
-From 784411ca3655c80da0f6025ab20634b2a6ff696b Mon Sep 17 00:00:00 2001
-From: Matthew Fernandez <matthew.fernandez@gmail.com>
-Date: Sat, 25 Jul 2020 19:31:01 -0700
-Subject: [PATCH] fix: out-of-bounds write on invalid label
-
-When the label for a node cannot be parsed (due to it being malformed), it falls
-back on the symbol name of the node itself. I.e. the default label the node
-would have had if it had no label attribute at all. However, this is applied by
-dynamically altering the node's label to "\N", a shortcut for the symbol name of
-the node. All of this is fine, however if the hand written label itself is
-shorter than the literal string "\N", not enough memory would have been
-allocated to write "\N" into the label text.
-
-Here we account for the possibility of error during label parsing, and assume
-that the label text may need to be overwritten with "\N" after the fact. Fixes
-issue #1700.
----
- lib/common/shapes.c | 5 +++--
- 1 file changed, 3 insertions(+), 2 deletions(-)
-
-diff --git a/lib/common/shapes.c b/lib/common/shapes.c
-index 0a0635fc3..9dca9ba6e 100644
---- a/lib/common/shapes.c
-+++ b/lib/common/shapes.c
-@@ -3546,9 +3546,10 @@ static void record_init(node_t * n)
-     reclblp = ND_label(n)->text;
-     len = strlen(reclblp);
-     /* For some forgotten reason, an empty label is parsed into a space, so
--     * we need at least two bytes in textbuf.
-+     * we need at least two bytes in textbuf, as well as accounting for the
-+     * error path involving "\\N" below.
-      */
--    len = MAX(len, 1);
-+    len = MAX(MAX(len, 1), (int)strlen("\\N"));
-     textbuf = N_NEW(len + 1, char);
-     if (!(info = parse_reclbl(n, flip, TRUE, textbuf))) {
- 	agerr(AGERR, "bad label format %s\n", ND_label(n)->text);
--- 
-2.31.1
-
diff --git a/gnu/packages/patches/guile-ssh-fix-test-suite.patch b/gnu/packages/patches/guile-ssh-fix-test-suite.patch
new file mode 100644
index 0000000000..dc10e08b0f
--- /dev/null
+++ b/gnu/packages/patches/guile-ssh-fix-test-suite.patch
@@ -0,0 +1,217 @@
+From f7942cded8b65341916a555186e2219efe174cd0 Mon Sep 17 00:00:00 2001
+From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
+Date: Thu, 4 Feb 2021 14:38:25 -0500
+Subject: [PATCH] tests: Fix test suite for Guile 3.0.5.
+
+The test-runner object is now reset to #f when calling the 'test-end'
+procedure.  See the commit de5d1a7f99b8e952b115237ebc29633062f99bb9 in
+Guile (srfi-64: Reset test-runner-current if done) which introduced this
+change.
+
+* tests/client-server.scm (exit-status): New variable.  Use it when calling
+exit.
+* tests/dist.scm: Likewise.
+* tests/key.scm: Likewise.
+* tests/log.scm: Likewise.
+* tests/popen.scm: Likewise.
+* tests/server-client.scm: Likewise.
+* tests/server.scm: Likewise.
+* tests/session.scm: Likewise.
+* tests/shell.scm: Likewise.
+* tests/sssh-ssshd.scm: Likewise.
+* tests/tunnel.scm: Likewise.
+---
+ tests/client-server.scm | 4 +++-
+ tests/dist.scm          | 4 +++-
+ tests/key.scm           | 3 ++-
+ tests/log.scm           | 5 ++++-
+ tests/popen.scm         | 4 +++-
+ tests/server-client.scm | 4 +++-
+ tests/server.scm        | 4 +++-
+ tests/session.scm       | 4 +++-
+ tests/shell.scm         | 3 ++-
+ tests/sssh-ssshd.scm    | 4 +++-
+ tests/tunnel.scm        | 4 +++-
+ 11 files changed, 32 insertions(+), 11 deletions(-)
+
+diff --git a/tests/client-server.scm b/tests/client-server.scm
+index 432a48c..fc46140 100644
+--- a/tests/client-server.scm
++++ b/tests/client-server.scm
+@@ -743,8 +743,10 @@
+ 
+ ;;;
+ 
++(define exit-status (test-runner-fail-count (test-runner-current)))
++
+ (test-end "client-server")
+ 
+-(exit (= (test-runner-fail-count (test-runner-current)) 0))
++(exit (= 0 exit-status))
+ 
+ ;;; client-server.scm ends here.
+diff --git a/tests/dist.scm b/tests/dist.scm
+index 2a3a75f..79f9e23 100644
+--- a/tests/dist.scm
++++ b/tests/dist.scm
+@@ -269,8 +269,10 @@ $4 = #<session #<undefined>@#<undefined>:22 (disconnected) 453fff>"
+ ;;;
+ 
+ 
++(define exit-status (test-runner-fail-count (test-runner-current)))
++
+ (test-end "dist")
+ 
+-(exit (= (test-runner-fail-count (test-runner-current)) 0))
++(exit (= 0 exit-status))
+ 
+ ;;; dist.scm ends here.
+diff --git a/tests/key.scm b/tests/key.scm
+index be31378..e1678f4 100644
+--- a/tests/key.scm
++++ b/tests/key.scm
+@@ -170,9 +170,10 @@
+                    (eq? (get-key-type key) 'ecdsa-p256)))))))
+ 
+ ;;;
++(define exit-status (test-runner-fail-count (test-runner-current)))
+ 
+ (test-end "key")
+ 
+-(exit (= (test-runner-fail-count (test-runner-current)) 0))
++(exit (= 0 exit-status))
+ 
+ ;;; key.scm ends here.
+diff --git a/tests/log.scm b/tests/log.scm
+index f547202..d528251 100644
+--- a/tests/log.scm
++++ b/tests/log.scm
+@@ -64,8 +64,11 @@
+   (get-log-verbosity))
+ 
+ 
++(define exit-status (test-runner-fail-count (test-runner-current)))
++
+ (test-end "log")
+ 
+-(exit (= (test-runner-fail-count (test-runner-current)) 0))
++(exit (= 0 exit-status))
++
+ 
+ ;;; log.scm ends here
+diff --git a/tests/popen.scm b/tests/popen.scm
+index e063e0b..fe77108 100644
+--- a/tests/popen.scm
++++ b/tests/popen.scm
+@@ -129,8 +129,10 @@
+           (format-log/scm 'nolog "open-remote-output-pipe"  "channel: ~A" channel)
+           (output-only? channel)))))))
+ 
++(define exit-status (test-runner-fail-count (test-runner-current)))
++
+ (test-end "popen")
+ 
+-(exit (= (test-runner-fail-count (test-runner-current)) 0))
++(exit (= 0 exit-status))
+ 
+ ;;; popen.scm ends here.
+diff --git a/tests/server-client.scm b/tests/server-client.scm
+index 920aa22..b6ed3eb 100644
+--- a/tests/server-client.scm
++++ b/tests/server-client.scm
+@@ -148,8 +148,10 @@
+          (equal? x session))))))
+ 
+ 
++(define exit-status (test-runner-fail-count (test-runner-current)))
++
+ (test-end "server-client")
+ 
+-(exit (= (test-runner-fail-count (test-runner-current)) 0))
++(exit (= 0 exit-status))
+ 
+ ;;; server-client.scm ends here.
+diff --git a/tests/server.scm b/tests/server.scm
+index c7f8b6c..1a6daea 100644
+--- a/tests/server.scm
++++ b/tests/server.scm
+@@ -157,9 +157,11 @@
+     (server-listen server)
+     #t))
+ 
++(define exit-status (test-runner-fail-count (test-runner-current)))
++
+ (test-end "server")
+ 
+-(exit (= (test-runner-fail-count (test-runner-current)) 0))
++(exit (= 0 exit-status))
+ 
+ ;;; server.scm ends here.
+ 
+diff --git a/tests/session.scm b/tests/session.scm
+index 8caa039..7310647 100644
+--- a/tests/session.scm
++++ b/tests/session.scm
+@@ -210,8 +210,10 @@
+   (let ((session (%make-session)))
+     (not (connected? session))))
+ 
++(define exit-status (test-runner-fail-count (test-runner-current)))
++
+ (test-end "session")
+ 
+-(exit (= (test-runner-fail-count (test-runner-current)) 0))
++(exit (= 0 exit-status))
+ 
+ ;;; session.scm ends here.
+diff --git a/tests/shell.scm b/tests/shell.scm
+index 7d613fb..e36e661 100644
+--- a/tests/shell.scm
++++ b/tests/shell.scm
+@@ -113,9 +113,10 @@
+ 
+ 
+ ;;;
++(define exit-status (test-runner-fail-count (test-runner-current)))
+ 
+ (test-end "shell")
+ 
+-(exit (= (test-runner-fail-count (test-runner-current)) 0))
++(exit (= 0 exit-status))
+ 
+ ;;; shell.scm ends here.
+diff --git a/tests/sssh-ssshd.scm b/tests/sssh-ssshd.scm
+index 2fe23db..edb53fc 100644
+--- a/tests/sssh-ssshd.scm
++++ b/tests/sssh-ssshd.scm
+@@ -118,8 +118,10 @@
+       result)))
+ 
+ 
++(define exit-status (test-runner-fail-count (test-runner-current)))
++
+ (test-end "sssh-ssshd")
+ 
+-(exit (= (test-runner-fail-count (test-runner-current)) 0))
++(exit (= 0 exit-status))
+ 
+ ;;; sssh-ssshd.scm ends here.
+diff --git a/tests/tunnel.scm b/tests/tunnel.scm
+index ef5a568..d6453b7 100644
+--- a/tests/tunnel.scm
++++ b/tests/tunnel.scm
+@@ -191,8 +191,10 @@
+                   (= pnum portnum)))
+            (eq? (channel-cancel-forward session "localhost" portnum) 'ok))))))))
+ 
++(define exit-status (test-runner-fail-count (test-runner-current)))
++
+ (test-end "tunnel")
+ 
+-(exit (= (test-runner-fail-count (test-runner-current)) 0))
++(exit (= 0 exit-status))
+ 
+ ;;; tunnel.scm ends here.
+-- 
+2.30.0
+
diff --git a/gnu/packages/patches/guile-ssh-read-error.patch b/gnu/packages/patches/guile-ssh-read-error.patch
new file mode 100644
index 0000000000..9cc6b048a0
--- /dev/null
+++ b/gnu/packages/patches/guile-ssh-read-error.patch
@@ -0,0 +1,18 @@
+This patch adjusts to slightly different 'read-error' in Guile 3.0.6
+compared to earlier versions:
+
+  https://github.com/artyom-poptsov/guile-ssh/issues/28
+
+--- a/tests/dist.scm
++++ b/tests/dist.scm
+@@ -183,8 +183,8 @@ Unbound variable: e"
+    rrepl-get-result))
+ 
+ (test-error-with-log/= "rrepl-get-result, unknown # object error"
+-  'node-repl-error "Reader error: scm_lreadr: #<unknown port>:1:3: \
+-Unknown # object: (#\\<): scheme@(guile-user)> \
++  'node-repl-error "Reader error: #f: #<unknown port>:1:3: \
++Unknown # object: (\"#<\"): scheme@(guile-user)> \
+ $4 = #<session #<undefined>@#<undefined>:22 (disconnected) 453fff>"
+   (call-with-input-string
+    (string-append  "scheme@(guile-user)> $4 = "
diff --git a/gnu/packages/patches/icu4c-CVE-2020-10531.patch b/gnu/packages/patches/icu4c-CVE-2020-10531.patch
deleted file mode 100644
index c2ab923bdc..0000000000
--- a/gnu/packages/patches/icu4c-CVE-2020-10531.patch
+++ /dev/null
@@ -1,127 +0,0 @@
-Fix CVE-2020-10531:
-
-https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10531
-
-Patch copied from upstream source repository (changes to the test suite
-are commented out):
-
-https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca
-
-From b7d08bc04a4296982fcef8b6b8a354a9e4e7afca Mon Sep 17 00:00:00 2001
-From: Frank Tang <ftang@chromium.org>
-Date: Sat, 1 Feb 2020 02:39:04 +0000
-Subject: [PATCH] ICU-20958 Prevent SEGV_MAPERR in append
-
-See #971
----
- icu4c/source/common/unistr.cpp          |  6 ++-
- icu4c/source/test/intltest/ustrtest.cpp | 62 +++++++++++++++++++++++++
- icu4c/source/test/intltest/ustrtest.h   |  1 +
- 3 files changed, 68 insertions(+), 1 deletion(-)
-
-diff --git a/icu4c/source/common/unistr.cpp b/icu4c/source/common/unistr.cpp
-index 901bb3358ba..077b4d6ef20 100644
---- a/icu4c/source/common/unistr.cpp
-+++ b/icu4c/source/common/unistr.cpp
-@@ -1563,7 +1563,11 @@ UnicodeString::doAppend(const UChar *srcChars, int32_t srcStart, int32_t srcLeng
-   }
- 
-   int32_t oldLength = length();
--  int32_t newLength = oldLength + srcLength;
-+  int32_t newLength;
-+  if (uprv_add32_overflow(oldLength, srcLength, &newLength)) {
-+    setToBogus();
-+    return *this;
-+  }
- 
-   // Check for append onto ourself
-   const UChar* oldArray = getArrayStart();
-#diff --git a/icu4c/source/test/intltest/ustrtest.cpp b/icu4c/source/test/intltest/ustrtest.cpp
-#index b6515ea813c..ad38bdf53a3 100644
-#--- a/icu4c/source/test/intltest/ustrtest.cpp
-#+++ b/icu4c/source/test/intltest/ustrtest.cpp
-#@@ -67,6 +67,7 @@ void UnicodeStringTest::runIndexedTest( int32_t index, UBool exec, const char* &
-#     TESTCASE_AUTO(TestWCharPointers);
-#     TESTCASE_AUTO(TestNullPointers);
-#     TESTCASE_AUTO(TestUnicodeStringInsertAppendToSelf);
-#+    TESTCASE_AUTO(TestLargeAppend);
-#     TESTCASE_AUTO_END;
-# }
-# 
-#@@ -2310,3 +2311,64 @@ void UnicodeStringTest::TestUnicodeStringInsertAppendToSelf() {
-#     str.insert(2, sub);
-#     assertEquals("", u"abbcdcde", str);
-# }
-#+
-#+void UnicodeStringTest::TestLargeAppend() {
-#+    if(quick) return;
-#+
-#+    IcuTestErrorCode status(*this, "TestLargeAppend");
-#+    // Make a large UnicodeString
-#+    int32_t len = 0xAFFFFFF;
-#+    UnicodeString str;
-#+    char16_t *buf = str.getBuffer(len);
-#+    // A fast way to set buffer to valid Unicode.
-#+    // 4E4E is a valid unicode character
-#+    uprv_memset(buf, 0x4e, len * 2);
-#+    str.releaseBuffer(len);
-#+    UnicodeString dest;
-#+    // Append it 16 times
-#+    // 0xAFFFFFF times 16 is 0xA4FFFFF1,
-#+    // which is greater than INT32_MAX, which is 0x7FFFFFFF.
-#+    int64_t total = 0;
-#+    for (int32_t i = 0; i < 16; i++) {
-#+        dest.append(str);
-#+        total += len;
-#+        if (total <= INT32_MAX) {
-#+            assertFalse("dest is not bogus", dest.isBogus());
-#+        } else {
-#+            assertTrue("dest should be bogus", dest.isBogus());
-#+        }
-#+    }
-#+    dest.remove();
-#+    total = 0;
-#+    for (int32_t i = 0; i < 16; i++) {
-#+        dest.append(str);
-#+        total += len;
-#+        if (total + len <= INT32_MAX) {
-#+            assertFalse("dest is not bogus", dest.isBogus());
-#+        } else if (total <= INT32_MAX) {
-#+            // Check that a string of exactly the maximum size works
-#+            UnicodeString str2;
-#+            int32_t remain = INT32_MAX - total;
-#+            char16_t *buf2 = str2.getBuffer(remain);
-#+            if (buf2 == nullptr) {
-#+                // if somehow memory allocation fail, return the test
-#+                return;
-#+            }
-#+            uprv_memset(buf2, 0x4e, remain * 2);
-#+            str2.releaseBuffer(remain);
-#+            dest.append(str2);
-#+            total += remain;
-#+            assertEquals("When a string of exactly the maximum size works", (int64_t)INT32_MAX, total);
-#+            assertEquals("When a string of exactly the maximum size works", INT32_MAX, dest.length());
-#+            assertFalse("dest is not bogus", dest.isBogus());
-#+
-#+            // Check that a string size+1 goes bogus
-#+            str2.truncate(1);
-#+            dest.append(str2);
-#+            total++;
-#+            assertTrue("dest should be bogus", dest.isBogus());
-#+        } else {
-#+            assertTrue("dest should be bogus", dest.isBogus());
-#+        }
-#+    }
-#+}
-#diff --git a/icu4c/source/test/intltest/ustrtest.h b/icu4c/source/test/intltest/ustrtest.h
-#index 218befdcc68..4a356a92c7a 100644
-#--- a/icu4c/source/test/intltest/ustrtest.h
-#+++ b/icu4c/source/test/intltest/ustrtest.h
-#@@ -97,6 +97,7 @@ class UnicodeStringTest: public IntlTest {
-#     void TestWCharPointers();
-#     void TestNullPointers();
-#     void TestUnicodeStringInsertAppendToSelf();
-#+    void TestLargeAppend();
-# };
-# 
-# #endif
diff --git a/gnu/packages/patches/inetutils-hurd.patch b/gnu/packages/patches/inetutils-hurd.patch
deleted file mode 100644
index bd65c4feb1..0000000000
--- a/gnu/packages/patches/inetutils-hurd.patch
+++ /dev/null
@@ -1,583 +0,0 @@
-Support compiling on the Hurd.
-
-Taken from https://git.hadrons.org/cgit/debian/pkgs/inetutils.git/tree/debian/patches/0002-ifconfig-Improve-the-support-for-GNU-Hurd.patch
-
-From 9a90d9b9119906df23cb2db1503cb0f099942dd9 Mon Sep 17 00:00:00 2001
-From: Mats Erik Andersson <gnu@gisladisker.se>
-Date: Sat, 18 Jul 2015 01:12:41 +0200
-Subject: [PATCH 02/35] ifconfig: Improve the support for GNU/Hurd.
-
-Use system specific code instead of generic code.
-This provides abilities similar to other systems.
----
- ChangeLog                   |  17 +++
- ifconfig/system.c           |  10 +-
- ifconfig/system.h           |   2 +
- ifconfig/system/Makefile.am |   4 +-
- ifconfig/system/generic.c   |  14 +-
- ifconfig/system/hurd.c      | 292 ++++++++++++++++++++++++++++++++++++
- ifconfig/system/hurd.h      |  50 ++++++
- 7 files changed, 381 insertions(+), 8 deletions(-)
- create mode 100644 ifconfig/system/hurd.c
- create mode 100644 ifconfig/system/hurd.h
-
-diff --git a/ifconfig/system.c b/ifconfig/system.c
-index 30677e41..e108dc2e 100644
---- a/ifconfig/system.c
-+++ b/ifconfig/system.c
-@@ -25,10 +25,12 @@
- # include "system/solaris.c"
- #elif defined __QNX__
- # include "system/qnx.c"
--# elif defined __DragonFly__ || defined __FreeBSD__ || \
--       defined __FreeBSD_kernel__ || \
--       defined __NetBSD__ || defined __OpenBSD__
--#  include "system/bsd.c"
-+#elif defined __DragonFly__ || defined __FreeBSD__ || \
-+      defined __FreeBSD_kernel__ || \
-+      defined __NetBSD__ || defined __OpenBSD__
-+# include "system/bsd.c"
-+#elif defined __GNU__
-+# include "system/hurd.c"
- #else
- # include "system/generic.c"
- #endif
-diff --git a/ifconfig/system.h b/ifconfig/system.h
-index 8521ad95..66878d3a 100644
---- a/ifconfig/system.h
-+++ b/ifconfig/system.h
-@@ -97,6 +97,8 @@ extern struct if_nameindex* (*system_if_nameindex) (void);
-        defined __FreeBSD_kernel__ || \
-        defined __NetBSD__ || defined __OpenBSD__
- #  include "system/bsd.h"
-+# elif defined __GNU__
-+#  include "system/hurd.h"
- # else
- #  include "system/generic.h"
- # endif
-diff --git a/ifconfig/system/Makefile.am b/ifconfig/system/Makefile.am
-index 954c6774..62a9f1c4 100644
---- a/ifconfig/system/Makefile.am
-+++ b/ifconfig/system/Makefile.am
-@@ -26,8 +26,10 @@ noinst_HEADERS = \
- 	linux.h \
- 	solaris.h \
- 	qnx.h \
-+	hurd.h \
- 	bsd.c \
- 	generic.c \
- 	linux.c \
- 	solaris.c \
--	qnx.c
-+	qnx.c \
-+	hurd.c
-diff --git a/ifconfig/system/generic.c b/ifconfig/system/generic.c
-index 9a2bda55..20a78bde 100644
---- a/ifconfig/system/generic.c
-+++ b/ifconfig/system/generic.c
-@@ -22,6 +22,8 @@
- #include <config.h>
- 
- #include "../ifconfig.h"
-+
-+#include <unused-parameter.h>
- 
- 
- /* Output format stuff.  */
-@@ -36,19 +38,25 @@ const char *system_help;
- struct argp_child system_argp_child;
- 
- int
--system_parse_opt (struct ifconfig **ifp, char option, char *optarg)
-+system_parse_opt (struct ifconfig **ifp _GL_UNUSED_PARAMETER,
-+		  char option _GL_UNUSED_PARAMETER,
-+		  char *optarg _GL_UNUSED_PARAMETER)
- {
-   return 0;
- }
- 
- int
--system_parse_opt_rest (struct ifconfig **ifp, int argc, char *argv[])
-+system_parse_opt_rest (struct ifconfig **ifp _GL_UNUSED_PARAMETER,
-+		       int argc _GL_UNUSED_PARAMETER,
-+		       char *argv[] _GL_UNUSED_PARAMETER)
- {
-   return 0;
- }
- 
- int
--system_configure (int sfd, struct ifreq *ifr, struct system_ifconfig *ifs)
-+system_configure (int sfd _GL_UNUSED_PARAMETER,
-+		  struct ifreq *ifr _GL_UNUSED_PARAMETER,
-+		  struct system_ifconfig *ifs _GL_UNUSED_PARAMETER)
- {
-   return 0;
- }
-diff --git a/ifconfig/system/hurd.c b/ifconfig/system/hurd.c
-new file mode 100644
-index 00000000..3bd19775
---- /dev/null
-+++ b/ifconfig/system/hurd.c
-@@ -0,0 +1,292 @@
-+/* hurd.c -- Code for ifconfig specific to GNU/Hurd.
-+  Copyright (C) 2015 Free Software Foundation, Inc.
-+
-+  This file is part of GNU Inetutils.
-+
-+  GNU Inetutils is free software: you can redistribute it and/or modify
-+  it under the terms of the GNU General Public License as published by
-+  the Free Software Foundation, either version 3 of the License, or (at
-+  your option) any later version.
-+
-+  GNU Inetutils is distributed in the hope that it will be useful, but
-+  WITHOUT ANY WARRANTY; without even the implied warranty of
-+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-+  General Public License for more details.
-+
-+  You should have received a copy of the GNU General Public License
-+  along with this program.  If not, see `http://www.gnu.org/licenses/'. */
-+
-+/* Mostly written by Marcus Brinkmann.
-+   Adaptions to GNU/Hurd by Mats Erik Andersson.  */
-+
-+#include <config.h>
-+
-+#include <stdlib.h>
-+#include <sys/ioctl.h>
-+#include <net/if_arp.h>
-+#include "../ifconfig.h"
-+
-+#include <unused-parameter.h>
-+
-+
-+/* Output format stuff.  */
-+
-+const char *system_default_format = "gnu";
-+
-+
-+/* Argument parsing stuff.  */
-+
-+const char *system_help = "NAME [ADDR]\
-+ [broadcast BRDADDR] [netmask MASK]\
-+ [mtu N] [up|down] [FLAGS]";
-+
-+struct argp_child system_argp_child;
-+
-+int
-+system_parse_opt (struct ifconfig **ifp _GL_UNUSED_PARAMETER,
-+		  char option _GL_UNUSED_PARAMETER,
-+		  char *optarg _GL_UNUSED_PARAMETER)
-+{
-+  return 0;
-+}
-+
-+int
-+system_parse_opt_rest (struct ifconfig **ifp, int argc, char *argv[])
-+{
-+  int i = 0, mask, rev;
-+  enum {
-+    EXPECT_NOTHING,
-+    EXPECT_AF,
-+    EXPECT_BROADCAST,
-+    EXPECT_NETMASK,
-+    EXPECT_METRIC,
-+    EXPECT_MTU
-+  } expect = EXPECT_AF;
-+
-+  *ifp = parse_opt_new_ifs (argv[0]);
-+
-+  while (++i < argc)
-+    {
-+      switch (expect)
-+	{
-+	case EXPECT_BROADCAST:
-+	  parse_opt_set_brdaddr (*ifp, argv[i]);
-+	  break;
-+
-+	case EXPECT_NETMASK:
-+	  parse_opt_set_netmask (*ifp, argv[i]);
-+	  break;
-+
-+	case EXPECT_MTU:
-+	  parse_opt_set_mtu (*ifp, argv[i]);
-+	  break;
-+
-+	/* XXX: 2015-07-18, GNU/Hurd does not yet support
-+		ioctl(SIOCSIFMETRIC), but we let the code
-+		handle this standard ability anyway!
-+	 */
-+	case EXPECT_METRIC:
-+	  parse_opt_set_metric (*ifp, argv[i]);
-+	  break;
-+
-+	case EXPECT_AF:
-+	  expect = EXPECT_NOTHING;
-+	  if (!strcmp (argv[i], "inet"))
-+	    continue;
-+	  else if (!strcmp (argv[i], "inet6"))
-+	    {
-+	      error (0, 0, "%s is not a supported address family", argv[i]);
-+	      return 0;
-+	    }
-+	  break;
-+
-+	case EXPECT_NOTHING:
-+	  break;
-+	}
-+
-+      if (expect != EXPECT_NOTHING)
-+	expect = EXPECT_NOTHING;
-+      else if (!strcmp (argv[i], "broadcast"))
-+	expect = EXPECT_BROADCAST;
-+      else if (!strcmp (argv[i], "netmask"))
-+	expect = EXPECT_NETMASK;
-+      else if (!strcmp (argv[i], "metric"))
-+	expect = EXPECT_METRIC;
-+      else if (!strcmp (argv[i], "mtu"))
-+	expect = EXPECT_MTU;
-+      else if (!strcmp (argv[i], "up"))
-+	parse_opt_set_flag (*ifp, IFF_UP | IFF_RUNNING, 0);
-+      else if (!strcmp (argv[i], "down"))
-+	parse_opt_set_flag (*ifp, IFF_UP, 1);
-+      else if (((mask = if_nameztoflag (argv[i], &rev))
-+		& ~IU_IFF_CANTCHANGE) != 0)
-+	parse_opt_set_flag (*ifp, mask, rev);
-+      else
-+	{
-+	  if (!((*ifp)->valid & IF_VALID_ADDR))
-+	    parse_opt_set_address (*ifp, argv[i]);
-+	  else if (!((*ifp)->valid & IF_VALID_DSTADDR))
-+	    parse_opt_set_dstaddr (*ifp, argv[i]);
-+	}
-+    }
-+
-+  switch (expect)
-+    {
-+    case EXPECT_BROADCAST:
-+      error (0, 0, "option `broadcast' requires an argument");
-+      break;
-+
-+    case EXPECT_NETMASK:
-+      error (0, 0, "option `netmask' requires an argument");
-+      break;
-+
-+    case EXPECT_METRIC:
-+      error (0, 0, "option `metric' requires an argument");
-+      break;
-+
-+    case EXPECT_MTU:
-+      error (0, 0, "option `mtu' requires an argument");
-+      break;
-+
-+    case EXPECT_AF:
-+    case EXPECT_NOTHING:
-+      return 1;
-+    }
-+
-+  return 0;
-+}
-+
-+int
-+system_configure (int sfd _GL_UNUSED_PARAMETER,
-+		  struct ifreq *ifr _GL_UNUSED_PARAMETER,
-+		  struct system_ifconfig *ifs _GL_UNUSED_PARAMETER)
-+{
-+  return 0;
-+}
-+
-+struct if_nameindex* (*system_if_nameindex) (void) = if_nameindex;
-+
-+static void
-+print_hwaddr_ether (format_data_t form _GL_UNUSED_PARAMETER,
-+		    unsigned char *data)
-+{
-+  *column += printf ("%02X:%02X:%02X:%02X:%02X:%02X",
-+		     data[0], data[1], data[2], data[3], data[4], data[5]);
-+  had_output = 1;
-+}
-+
-+struct arphrd_symbol
-+{
-+  const char *name;
-+  const char *title;
-+  int value;
-+  void (*print_hwaddr) (format_data_t form, unsigned char *data);
-+} arphrd_symbols[] =
-+  {
-+#ifdef ARPHRD_ETHER		/* Ethernet 10/100Mbps.  */
-+    { "ETHER", "Ethernet", ARPHRD_ETHER, print_hwaddr_ether},
-+#endif
-+#ifdef ARPHRD_LOOPBACK		/* Loopback device.  */
-+    { "LOOPBACK", "Local Loopback", ARPHRD_LOOPBACK, NULL},
-+#endif
-+    /* XXX: The image debian-hurd-20150424 returns the value 4
-+	    instead of expected ARPHRD_LOOPBACK.  This has been
-+	    discussed in the list debian-hurd, where I was asked
-+	    to resist the temptation of a work around!
-+     */
-+    { NULL, NULL, 0, NULL}
-+  };
-+
-+struct arphrd_symbol *
-+arphrd_findvalue (int value)
-+{
-+  struct arphrd_symbol *arp = arphrd_symbols;
-+  while (arp->name != NULL)
-+    {
-+      if (arp->value == value)
-+	break;
-+      arp++;
-+    }
-+  if (arp->name)
-+    return arp;
-+  else
-+    return NULL;
-+}
-+
-+void
-+system_fh_hwaddr_query (format_data_t form, int argc, char *argv[])
-+{
-+#ifdef SIOCGIFHWADDR
-+  struct arphrd_symbol *arp;
-+
-+  if (ioctl (form->sfd, SIOCGIFHWADDR, form->ifr) < 0)
-+    select_arg (form, argc, argv, 1);
-+
-+  arp = arphrd_findvalue (form->ifr->ifr_hwaddr.sa_family);
-+  select_arg (form, argc, argv, (arp && arp->print_hwaddr) ? 0 : 1);
-+#else
-+  select_arg (form, argc, argv, 1);
-+#endif
-+}
-+
-+void
-+system_fh_hwaddr (format_data_t form, int argc _GL_UNUSED_PARAMETER,
-+		  char *argv[] _GL_UNUSED_PARAMETER)
-+{
-+#ifdef SIOCGIFHWADDR
-+  if (ioctl (form->sfd, SIOCGIFHWADDR, form->ifr) < 0)
-+    error (EXIT_FAILURE, errno,
-+	   "SIOCGIFHWADDR failed for interface `%s'",
-+	   form->ifr->ifr_name);
-+  else
-+    {
-+      struct arphrd_symbol *arp;
-+
-+      arp = arphrd_findvalue (form->ifr->ifr_hwaddr.sa_family);
-+      if (arp && arp->print_hwaddr)
-+	arp->print_hwaddr (form,
-+			   (unsigned char *) form->ifr->ifr_hwaddr.sa_data);
-+      else
-+	put_string (form, "(hwaddr unknown)");
-+    }
-+#else
-+  *column += printf ("(not available)");
-+  had_output = 1;
-+#endif
-+}
-+
-+void
-+system_fh_hwtype_query (format_data_t form, int argc, char *argv[])
-+{
-+#ifdef SIOCGIFHWADDR
-+  if (ioctl (form->sfd, SIOCGIFHWADDR, form->ifr) >= 0)
-+    select_arg (form, argc, argv, 0);
-+  else
-+#endif
-+    select_arg (form, argc, argv, 1);
-+}
-+
-+void
-+system_fh_hwtype (format_data_t form, int argc _GL_UNUSED_PARAMETER,
-+		  char *argv[] _GL_UNUSED_PARAMETER)
-+{
-+#ifdef SIOCGIFHWADDR
-+  if (ioctl (form->sfd, SIOCGIFHWADDR, form->ifr) < 0)
-+    error (EXIT_FAILURE, errno,
-+	   "SIOCGIFHWADDR failed for interface `%s'",
-+	   form->ifr->ifr_name);
-+  else
-+    {
-+      struct arphrd_symbol *arp;
-+
-+      arp = arphrd_findvalue (form->ifr->ifr_hwaddr.sa_family);
-+      if (arp)
-+	put_string (form, arp->title);
-+      else
-+	put_string (form, "(hwtype unknown)");
-+    }
-+#else
-+  *column += printf ("(not available)");
-+  had_output = 1;
-+#endif
-+}
-diff --git a/ifconfig/system/hurd.h b/ifconfig/system/hurd.h
-new file mode 100644
-index 00000000..bab14565
---- /dev/null
-+++ b/ifconfig/system/hurd.h
-@@ -0,0 +1,50 @@
-+/*
-+  Copyright (C) 2015 Free Software Foundation, Inc.
-+
-+  This file is part of GNU Inetutils.
-+
-+  GNU Inetutils is free software: you can redistribute it and/or modify
-+  it under the terms of the GNU General Public License as published by
-+  the Free Software Foundation, either version 3 of the License, or (at
-+  your option) any later version.
-+
-+  GNU Inetutils is distributed in the hope that it will be useful, but
-+  WITHOUT ANY WARRANTY; without even the implied warranty of
-+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-+  General Public License for more details.
-+
-+  You should have received a copy of the GNU General Public License
-+  along with this program.  If not, see `http://www.gnu.org/licenses/'. */
-+
-+/* Written by Mats Erik Andersson.  */
-+
-+#ifndef IFCONFIG_SYSTEM_HURD_H
-+# define IFCONFIG_SYSTEM_HURD_H
-+
-+# include "../printif.h"
-+# include "../options.h"
-+
-+
-+/* Option support.  */
-+
-+struct system_ifconfig
-+{
-+  int valid;
-+};
-+
-+
-+/* Output format support.  */
-+
-+# define SYSTEM_FORMAT_HANDLER \
-+  { "hurd", fh_nothing}, \
-+  { "hwaddr?", system_fh_hwaddr_query}, \
-+  { "hwaddr", system_fh_hwaddr}, \
-+  { "hwtype?", system_fh_hwtype_query}, \
-+  { "hwtype", system_fh_hwtype},
-+
-+void system_fh_hwaddr_query (format_data_t form, int argc, char *argv[]);
-+void system_fh_hwaddr (format_data_t form, int argc, char *argv[]);
-+void system_fh_hwtype_query (format_data_t form, int argc, char *argv[]);
-+void system_fh_hwtype (format_data_t form, int argc, char *argv[]);
-+
-+#endif /* !IFCONFIG_SYSTEM_HURD_H */
--- 
-2.23.0.rc1.170.gbd704faa3e
-
-From 589dab9c7d3119da82837dabae34c8a3d16cbe49 Mon Sep 17 00:00:00 2001
-From: Mats Erik Andersson <gnu@gisladisker.se>
-Date: Thu, 30 Jul 2015 01:06:42 +0200
-Subject: [PATCH 07/35] ifconfig: Hardware detection in GNU/Hurd.
-
-A work-around needed to distinguish hardware type.
----
- ChangeLog              | 10 ++++++++++
- ifconfig/system/hurd.c | 19 ++++++++++++-------
- 2 files changed, 22 insertions(+), 7 deletions(-)
-
-diff --git a/ifconfig/system/hurd.c b/ifconfig/system/hurd.c
-index 3bd19775..b6261a00 100644
---- a/ifconfig/system/hurd.c
-+++ b/ifconfig/system/hurd.c
-@@ -175,6 +175,16 @@ print_hwaddr_ether (format_data_t form _GL_UNUSED_PARAMETER,
-   had_output = 1;
- }
- 
-+/* GNU/Hurd and Mach are using a mixture of BSD definitions
-+ * and GNU/Linux interface headers, which in this situation
-+ * means that sa_family_t is an unsigned char, from BSD, while
-+ * all ARPHRD_* come from GNU/Linux and are thus 16 bits wide.
-+ * We must account for this.  The following bitmask will
-+ * adapt to any future change!
-+ */
-+
-+#define _ARP_MASK ((sizeof (sa_family_t) == 1) ? 0xff : 0xffff)
-+
- struct arphrd_symbol
- {
-   const char *name;
-@@ -184,16 +194,11 @@ struct arphrd_symbol
- } arphrd_symbols[] =
-   {
- #ifdef ARPHRD_ETHER		/* Ethernet 10/100Mbps.  */
--    { "ETHER", "Ethernet", ARPHRD_ETHER, print_hwaddr_ether},
-+    { "ETHER", "Ethernet", ARPHRD_ETHER & _ARP_MASK, print_hwaddr_ether},
- #endif
- #ifdef ARPHRD_LOOPBACK		/* Loopback device.  */
--    { "LOOPBACK", "Local Loopback", ARPHRD_LOOPBACK, NULL},
-+    { "LOOPBACK", "Local Loopback", ARPHRD_LOOPBACK & _ARP_MASK, NULL},
- #endif
--    /* XXX: The image debian-hurd-20150424 returns the value 4
--	    instead of expected ARPHRD_LOOPBACK.  This has been
--	    discussed in the list debian-hurd, where I was asked
--	    to resist the temptation of a work around!
--     */
-     { NULL, NULL, 0, NULL}
-   };
- 
--- 
-2.23.0.rc1.170.gbd704faa3e
-
-From d379784b4461d17b2536effd1b52bae21cd28a32 Mon Sep 17 00:00:00 2001
-From: Guillem Jover <guillem@hadrons.org>
-Date: Fri, 16 Aug 2019 00:34:03 +0200
-Subject: [PATCH 35/35] telnet: Several ioctls have been disabled in the Hurd's
- glibc
-
-But not the related option macros. inetutils uses those macros to decide
-whether the ioctls are available, so it is FTBFS now. The Hurd's glibc
-is being fixed, but we'll use this for now to get the builds going.
----
- telnet/sys_bsd.c | 7 ++++++-
- 1 file changed, 6 insertions(+), 1 deletion(-)
-
-diff --git a/telnet/sys_bsd.c b/telnet/sys_bsd.c
-index 662536ab..5eb35cb5 100644
---- a/telnet/sys_bsd.c
-+++ b/telnet/sys_bsd.c
-@@ -63,6 +63,7 @@
- #include <errno.h>
- #include <arpa/telnet.h>
- #include <sys/select.h>
-+#include <sys/ioctl.h>
- #include <unused-parameter.h>
- 
- #include "ring.h"
-@@ -157,7 +158,7 @@ TerminalRead (char *buf, int n)
- int
- TerminalAutoFlush (void)
- {
--#if defined LNOFLSH
-+#if defined TIOCLGET && defined LNOFLSH
-   int flush;
- 
-   ioctl (0, TIOCLGET, (char *) &flush);
-@@ -260,7 +261,9 @@ TerminalSaveState (void)
-   ioctl (0, TIOCGETP, (char *) &ottyb);
-   ioctl (0, TIOCGETC, (char *) &otc);
-   ioctl (0, TIOCGLTC, (char *) &oltc);
-+#ifdef TIOCLGET
-   ioctl (0, TIOCLGET, (char *) &olmode);
-+#endif
- 
-   ntc = otc;
-   nltc = oltc;
-@@ -755,7 +758,9 @@ TerminalNewMode (register int f)
- #endif
-     }
- #ifndef USE_TERMIO
-+#ifdef TIOCLSET
-   ioctl (tin, TIOCLSET, (char *) &lmode);
-+#endif
-   ioctl (tin, TIOCSLTC, (char *) &ltc);
-   ioctl (tin, TIOCSETC, (char *) &tc);
-   ioctl (tin, TIOCSETN, (char *) &sb);
--- 
-2.23.0.rc1.170.gbd704faa3e
-
diff --git a/gnu/packages/patches/jsoncpp-fix-inverted-case.patch b/gnu/packages/patches/jsoncpp-fix-inverted-case.patch
deleted file mode 100644
index e4897de1b8..0000000000
--- a/gnu/packages/patches/jsoncpp-fix-inverted-case.patch
+++ /dev/null
@@ -1,22 +0,0 @@
-This patch fixes a bug and related test failure on platforms where 'char'
-is unsigned.
-
-Taken from upstream:
-https://github.com/open-source-parsers/jsoncpp/commit/f11611c8785082ead760494cba06196f14a06dcb
-
-diff --git a/src/lib_json/json_writer.cpp b/src/lib_json/json_writer.cpp
-index 8e06cca2..56195dc1 100644
---- a/src/lib_json/json_writer.cpp
-+++ b/src/lib_json/json_writer.cpp
-@@ -178,8 +178,9 @@ static bool isAnyCharRequiredQuoting(char const* s, size_t n) {
- 
-   char const* const end = s + n;
-   for (char const* cur = s; cur < end; ++cur) {
--    if (*cur == '\\' || *cur == '\"' || *cur < ' ' ||
--        static_cast<unsigned char>(*cur) < 0x80)
-+    if (*cur == '\\' || *cur == '\"' ||
-+        static_cast<unsigned char>(*cur) < ' ' ||
-+        static_cast<unsigned char>(*cur) >= 0x80)
-       return true;
-   }
-   return false;
diff --git a/gnu/packages/patches/lcms-CVE-2018-16435.patch b/gnu/packages/patches/lcms-CVE-2018-16435.patch
deleted file mode 100644
index 60228e73af..0000000000
--- a/gnu/packages/patches/lcms-CVE-2018-16435.patch
+++ /dev/null
@@ -1,171 +0,0 @@
-https://github.com/mm2/Little-CMS/commit/768f70ca405cd3159d990e962d54456773bb8cf8.patch
-
-From 768f70ca405cd3159d990e962d54456773bb8cf8 Mon Sep 17 00:00:00 2001
-From: Marti Maria <info@littlecms.com>
-Date: Wed, 15 Aug 2018 20:07:56 +0200
-Subject: [PATCH] Upgrade Visual studio 2017 15.8
-
-- Upgrade to 15.8
-- Add check on CGATS memory allocation (thanks to Quang Nguyen for
-pointing out this)
----
- Projects/VC2017/jpegicc/jpegicc.vcxproj           |  1 +
- Projects/VC2017/lcms2_DLL/lcms2_DLL.vcxproj       |  2 +-
- Projects/VC2017/lcms2_static/lcms2_static.vcxproj |  2 +-
- Projects/VC2017/linkicc/linkicc.vcxproj           |  2 +-
- Projects/VC2017/psicc/psicc.vcxproj               |  2 +-
- Projects/VC2017/testbed/testbed.vcxproj           |  2 +-
- Projects/VC2017/tiffdiff/tiffdiff.vcxproj         |  2 +-
- Projects/VC2017/tifficc/tifficc.vcxproj           |  2 +-
- Projects/VC2017/transicc/transicc.vcxproj         |  1 +
- src/cmscgats.c                                    | 14 ++++++++++----
- 10 files changed, 19 insertions(+), 11 deletions(-)
-
-diff --git a/Projects/VC2017/jpegicc/jpegicc.vcxproj b/Projects/VC2017/jpegicc/jpegicc.vcxproj
-index ab26a53..39cfd00 100644
---- a/Projects/VC2017/jpegicc/jpegicc.vcxproj
-+++ b/Projects/VC2017/jpegicc/jpegicc.vcxproj
-@@ -22,6 +22,7 @@
-     <ProjectGuid>{62812507-F926-4968-96A9-17678460AD90}</ProjectGuid>
-     <RootNamespace>jpegicc</RootNamespace>
-     <Keyword>Win32Proj</Keyword>
-+    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
-   </PropertyGroup>
-   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-diff --git a/Projects/VC2017/lcms2_DLL/lcms2_DLL.vcxproj b/Projects/VC2017/lcms2_DLL/lcms2_DLL.vcxproj
-index 4c8aa3f..d1bf3eb 100644
---- a/Projects/VC2017/lcms2_DLL/lcms2_DLL.vcxproj
-+++ b/Projects/VC2017/lcms2_DLL/lcms2_DLL.vcxproj
-@@ -22,7 +22,7 @@
-     <ProjectGuid>{8C51BE48-ADB8-4089-A9EC-F6BF993A0548}</ProjectGuid>
-     <RootNamespace>lcms2_DLL</RootNamespace>
-     <Keyword>Win32Proj</Keyword>
--    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
-+    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
-   </PropertyGroup>
-   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-diff --git a/Projects/VC2017/lcms2_static/lcms2_static.vcxproj b/Projects/VC2017/lcms2_static/lcms2_static.vcxproj
-index 2a9988a..9fc05ce 100644
---- a/Projects/VC2017/lcms2_static/lcms2_static.vcxproj
-+++ b/Projects/VC2017/lcms2_static/lcms2_static.vcxproj
-@@ -22,7 +22,7 @@
-     <ProjectGuid>{71DEDE59-3F1E-486B-A899-4283000F76B5}</ProjectGuid>
-     <RootNamespace>lcms2_static</RootNamespace>
-     <Keyword>Win32Proj</Keyword>
--    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
-+    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
-   </PropertyGroup>
-   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-diff --git a/Projects/VC2017/linkicc/linkicc.vcxproj b/Projects/VC2017/linkicc/linkicc.vcxproj
-index 30c2b4e..51586dd 100644
---- a/Projects/VC2017/linkicc/linkicc.vcxproj
-+++ b/Projects/VC2017/linkicc/linkicc.vcxproj
-@@ -22,7 +22,7 @@
-     <ProjectGuid>{FBFBE1DC-DB84-4BA1-9552-B4780F457849}</ProjectGuid>
-     <RootNamespace>linkicc</RootNamespace>
-     <Keyword>Win32Proj</Keyword>
--    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
-+    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
-   </PropertyGroup>
-   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-diff --git a/Projects/VC2017/psicc/psicc.vcxproj b/Projects/VC2017/psicc/psicc.vcxproj
-index 9dcf89a..8f26e12 100644
---- a/Projects/VC2017/psicc/psicc.vcxproj
-+++ b/Projects/VC2017/psicc/psicc.vcxproj
-@@ -22,7 +22,7 @@
-     <ProjectGuid>{EF6A8851-65FE-46F5-B9EF-14F0B671F693}</ProjectGuid>
-     <RootNamespace>psicc</RootNamespace>
-     <Keyword>Win32Proj</Keyword>
--    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
-+    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
-   </PropertyGroup>
-   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-diff --git a/Projects/VC2017/testbed/testbed.vcxproj b/Projects/VC2017/testbed/testbed.vcxproj
-index 0af3762..3f6aea3 100644
---- a/Projects/VC2017/testbed/testbed.vcxproj
-+++ b/Projects/VC2017/testbed/testbed.vcxproj
-@@ -22,7 +22,7 @@
-     <ProjectGuid>{928A3A2B-46EF-4279-959C-513B3652FF0E}</ProjectGuid>
-     <RootNamespace>testbed</RootNamespace>
-     <Keyword>Win32Proj</Keyword>
--    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
-+    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
-   </PropertyGroup>
-   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-diff --git a/Projects/VC2017/tiffdiff/tiffdiff.vcxproj b/Projects/VC2017/tiffdiff/tiffdiff.vcxproj
-index 7edfe28..3a6d837 100644
---- a/Projects/VC2017/tiffdiff/tiffdiff.vcxproj
-+++ b/Projects/VC2017/tiffdiff/tiffdiff.vcxproj
-@@ -22,7 +22,7 @@
-     <ProjectGuid>{75B91835-CCD7-48BE-A606-A9C997D5DBEE}</ProjectGuid>
-     <RootNamespace>tiffdiff</RootNamespace>
-     <Keyword>Win32Proj</Keyword>
--    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
-+    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
-   </PropertyGroup>
-   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-diff --git a/Projects/VC2017/tifficc/tifficc.vcxproj b/Projects/VC2017/tifficc/tifficc.vcxproj
-index cd9f04c..5ef954f 100644
---- a/Projects/VC2017/tifficc/tifficc.vcxproj
-+++ b/Projects/VC2017/tifficc/tifficc.vcxproj
-@@ -22,7 +22,7 @@
-     <ProjectGuid>{2256DE16-ED92-4A6F-9C54-F65BB61E64A2}</ProjectGuid>
-     <RootNamespace>tifficc</RootNamespace>
-     <Keyword>Win32Proj</Keyword>
--    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
-+    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
-   </PropertyGroup>
-   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-diff --git a/Projects/VC2017/transicc/transicc.vcxproj b/Projects/VC2017/transicc/transicc.vcxproj
-index d9b77c6..b3173d8 100644
---- a/Projects/VC2017/transicc/transicc.vcxproj
-+++ b/Projects/VC2017/transicc/transicc.vcxproj
-@@ -22,6 +22,7 @@
-     <ProjectGuid>{9EE22D66-C849-474C-9ED5-C3E141DAB160}</ProjectGuid>
-     <RootNamespace>transicc</RootNamespace>
-     <Keyword>Win32Proj</Keyword>
-+    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
-   </PropertyGroup>
-   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-diff --git a/src/cmscgats.c b/src/cmscgats.c
-index 1a87613..8c3e96d 100644
---- a/src/cmscgats.c
-+++ b/src/cmscgats.c
-@@ -1,7 +1,7 @@
- //---------------------------------------------------------------------------------
- //
- //  Little Color Management System
--//  Copyright (c) 1998-2017 Marti Maria Saguer
-+//  Copyright (c) 1998-2018 Marti Maria Saguer
- //
- // Permission is hereby granted, free of charge, to any person obtaining
- // a copy of this software and associated documentation files (the "Software"),
-@@ -1506,10 +1506,16 @@ void AllocateDataSet(cmsIT8* it8)
-     t-> nSamples   = atoi(cmsIT8GetProperty(it8, "NUMBER_OF_FIELDS"));
-     t-> nPatches   = atoi(cmsIT8GetProperty(it8, "NUMBER_OF_SETS"));
- 
--    t-> Data = (char**)AllocChunk (it8, ((cmsUInt32Number) t->nSamples + 1) * ((cmsUInt32Number) t->nPatches + 1) *sizeof (char*));
--    if (t->Data == NULL) {
-+    if (t -> nSamples < 0 || t->nSamples > 0x7ffe || t->nPatches < 0 || t->nPatches > 0x7ffe)
-+    {
-+        SynError(it8, "AllocateDataSet: too much data");
-+    }
-+    else {
-+        t->Data = (char**)AllocChunk(it8, ((cmsUInt32Number)t->nSamples + 1) * ((cmsUInt32Number)t->nPatches + 1) * sizeof(char*));
-+        if (t->Data == NULL) {
- 
--        SynError(it8, "AllocateDataSet: Unable to allocate data array");
-+            SynError(it8, "AllocateDataSet: Unable to allocate data array");
-+        }
-     }
- 
- }
diff --git a/gnu/packages/patches/libtirpc-hurd-client.patch b/gnu/packages/patches/libtirpc-hurd-client.patch
deleted file mode 100644
index 526ad262d2..0000000000
--- a/gnu/packages/patches/libtirpc-hurd-client.patch
+++ /dev/null
@@ -1,50 +0,0 @@
-Taken from https://salsa.debian.org/debian/libtirpc/-/raw/master/debian/patches/06-hurd-client-port.diff
-
-Description: Fix client code for hurd, avoiding malloc overflow
- When trying to setup a inet connection, it happens the following:
- - in libtirp, src/clnt_vc.c, clnt_vc_create gets called
- - when trying to allocate vc_fd_locks, __rpc_dtbsize() is used as size
-   for that array of fd locks
- - __rpc_dtbsize(), in src/rpc_generic.c, queries using rlimit the
-   maximum (rlim_max) number of file descriptors (RLIMIT_NOFILE):
-   - on Linux, the default is { rlim_cur = 1024, rlim_max = 4096 }
-   - on kFreeBSD, the default is { rlim_cur = 1024, rlim_max = 1024 }
-   - on Hurd, the default is { rlim_cur = 1024, rlim_max = RLIM_INFINITY }
-  meaning that on Hurd the memory allocation fails (as
-  __rpc_dtbsize() * sizeof(int) overflows and is negative)
-
- Change libtiprc so __rpc_dtbsize falls back on rlim_cur if rlim_max
- is unlimited.
-
- This patch fixes the client connection using inet sockets; local unix
- sockets are not working, for two reasons so far:
- - getpeername on them gives EOPNOTSUPP
- - SO_REUSEADDR is not implemented for them
-Author: Pino Toscano <pino@debian.org>
-
-Bug-Debian: http://bugs.debian.org/739674
-Forwarded: no
-Reviewed-By: Petter Reinholdtsen
-Last-Update: 2014-03-03
-
---- a/src/rpc_generic.c
-+++ b/src/rpc_generic.c
-@@ -107,12 +107,17 @@
- {
- 	static int tbsize;
- 	struct rlimit rl;
-+	rlim_t lim;
- 
- 	if (tbsize) {
- 		return (tbsize);
- 	}
- 	if (getrlimit(RLIMIT_NOFILE, &rl) == 0) {
--		return (tbsize = (int)rl.rlim_max);
-+		lim = rl.rlim_max;
-+		if (lim == RLIM_INFINITY) {
-+			lim = rl.rlim_cur;
-+		}
-+		return (tbsize = (int)lim);
- 	}
- 	/*
- 	 * Something wrong.  I'll try to save face by returning a
diff --git a/gnu/packages/patches/libxml2-parent-pointers.patch b/gnu/packages/patches/libxml2-parent-pointers.patch
new file mode 100644
index 0000000000..1f0615c512
--- /dev/null
+++ b/gnu/packages/patches/libxml2-parent-pointers.patch
@@ -0,0 +1,228 @@
+Fix a regression in 2.9.12 where some corrupt XML structures were handled
+incorrectly:
+
+  https://gitlab.gnome.org/GNOME/libxml2/-/issues/255
+
+This is an amalgamation of these upstream commits:
+
+  https://gitlab.gnome.org/GNOME/libxml2/-/commit/85b1792e37b131e7a51af98a37f92472e8de5f3f
+  https://gitlab.gnome.org/GNOME/libxml2/-/commit/13ad8736d294536da4cbcd70a96b0a2fbf47070c
+
+diff --git a/HTMLtree.c b/HTMLtree.c
+--- a/HTMLtree.c
++++ b/HTMLtree.c
+@@ -744,7 +744,7 @@ void
+ htmlNodeDumpFormatOutput(xmlOutputBufferPtr buf, xmlDocPtr doc,
+ 	                 xmlNodePtr cur, const char *encoding ATTRIBUTE_UNUSED,
+                          int format) {
+-    xmlNodePtr root;
++    xmlNodePtr root, parent;
+     xmlAttrPtr attr;
+     const htmlElemDesc * info;
+ 
+@@ -755,6 +755,7 @@ htmlNodeDumpFormatOutput(xmlOutputBufferPtr buf, xmlDocPtr doc,
+     }
+ 
+     root = cur;
++    parent = cur->parent;
+     while (1) {
+         switch (cur->type) {
+         case XML_HTML_DOCUMENT_NODE:
+@@ -762,13 +763,25 @@ htmlNodeDumpFormatOutput(xmlOutputBufferPtr buf, xmlDocPtr doc,
+             if (((xmlDocPtr) cur)->intSubset != NULL) {
+                 htmlDtdDumpOutput(buf, (xmlDocPtr) cur, NULL);
+             }
+-            if (cur->children != NULL) {
++            /* Always validate cur->parent when descending. */
++            if ((cur->parent == parent) && (cur->children != NULL)) {
++                parent = cur;
+                 cur = cur->children;
+                 continue;
+             }
+             break;
+ 
+         case XML_ELEMENT_NODE:
++            /*
++             * Some users like lxml are known to pass nodes with a corrupted
++             * tree structure. Fall back to a recursive call to handle this
++             * case.
++             */
++            if ((cur->parent != parent) && (cur->children != NULL)) {
++                htmlNodeDumpFormatOutput(buf, doc, cur, encoding, format);
++                break;
++            }
++
+             /*
+              * Get specific HTML info for that node.
+              */
+@@ -817,6 +830,7 @@ htmlNodeDumpFormatOutput(xmlOutputBufferPtr buf, xmlDocPtr doc,
+                     (cur->name != NULL) &&
+                     (cur->name[0] != 'p')) /* p, pre, param */
+                     xmlOutputBufferWriteString(buf, "\n");
++                parent = cur;
+                 cur = cur->children;
+                 continue;
+             }
+@@ -825,9 +839,9 @@ htmlNodeDumpFormatOutput(xmlOutputBufferPtr buf, xmlDocPtr doc,
+                 (info != NULL) && (!info->isinline)) {
+                 if ((cur->next->type != HTML_TEXT_NODE) &&
+                     (cur->next->type != HTML_ENTITY_REF_NODE) &&
+-                    (cur->parent != NULL) &&
+-                    (cur->parent->name != NULL) &&
+-                    (cur->parent->name[0] != 'p')) /* p, pre, param */
++                    (parent != NULL) &&
++                    (parent->name != NULL) &&
++                    (parent->name[0] != 'p')) /* p, pre, param */
+                     xmlOutputBufferWriteString(buf, "\n");
+             }
+ 
+@@ -842,9 +856,9 @@ htmlNodeDumpFormatOutput(xmlOutputBufferPtr buf, xmlDocPtr doc,
+                 break;
+             if (((cur->name == (const xmlChar *)xmlStringText) ||
+                  (cur->name != (const xmlChar *)xmlStringTextNoenc)) &&
+-                ((cur->parent == NULL) ||
+-                 ((xmlStrcasecmp(cur->parent->name, BAD_CAST "script")) &&
+-                  (xmlStrcasecmp(cur->parent->name, BAD_CAST "style"))))) {
++                ((parent == NULL) ||
++                 ((xmlStrcasecmp(parent->name, BAD_CAST "script")) &&
++                  (xmlStrcasecmp(parent->name, BAD_CAST "style"))))) {
+                 xmlChar *buffer;
+ 
+                 buffer = xmlEncodeEntitiesReentrant(doc, cur->content);
+@@ -902,13 +916,9 @@ htmlNodeDumpFormatOutput(xmlOutputBufferPtr buf, xmlDocPtr doc,
+                 break;
+             }
+ 
+-            /*
+-             * The parent should never be NULL here but we want to handle
+-             * corrupted documents gracefully.
+-             */
+-            if (cur->parent == NULL)
+-                return;
+-            cur = cur->parent;
++            cur = parent;
++            /* cur->parent was validated when descending. */
++            parent = cur->parent;
+ 
+             if ((cur->type == XML_HTML_DOCUMENT_NODE) ||
+                 (cur->type == XML_DOCUMENT_NODE)) {
+@@ -939,9 +949,9 @@ htmlNodeDumpFormatOutput(xmlOutputBufferPtr buf, xmlDocPtr doc,
+                     (cur->next != NULL)) {
+                     if ((cur->next->type != HTML_TEXT_NODE) &&
+                         (cur->next->type != HTML_ENTITY_REF_NODE) &&
+-                        (cur->parent != NULL) &&
+-                        (cur->parent->name != NULL) &&
+-                        (cur->parent->name[0] != 'p')) /* p, pre, param */
++                        (parent != NULL) &&
++                        (parent->name != NULL) &&
++                        (parent->name[0] != 'p')) /* p, pre, param */
+                         xmlOutputBufferWriteString(buf, "\n");
+                 }
+             }
+diff --git a/xmlsave.c b/xmlsave.c
+--- a/xmlsave.c
++++ b/xmlsave.c
+@@ -847,7 +847,7 @@ htmlNodeDumpOutputInternal(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+ static void
+ xmlNodeDumpOutputInternal(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+     int format = ctxt->format;
+-    xmlNodePtr tmp, root, unformattedNode = NULL;
++    xmlNodePtr tmp, root, unformattedNode = NULL, parent;
+     xmlAttrPtr attr;
+     xmlChar *start, *end;
+     xmlOutputBufferPtr buf;
+@@ -856,6 +856,7 @@ xmlNodeDumpOutputInternal(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+     buf = ctxt->buf;
+ 
+     root = cur;
++    parent = cur->parent;
+     while (1) {
+         switch (cur->type) {
+         case XML_DOCUMENT_NODE:
+@@ -868,7 +869,9 @@ xmlNodeDumpOutputInternal(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+             break;
+ 
+         case XML_DOCUMENT_FRAG_NODE:
+-            if (cur->children != NULL) {
++            /* Always validate cur->parent when descending. */
++            if ((cur->parent == parent) && (cur->children != NULL)) {
++                parent = cur;
+                 cur = cur->children;
+                 continue;
+             }
+@@ -887,7 +890,18 @@ xmlNodeDumpOutputInternal(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+             break;
+ 
+         case XML_ELEMENT_NODE:
+-	    if ((cur != root) && (ctxt->format == 1) && (xmlIndentTreeOutput))
++            /*
++             * Some users like lxml are known to pass nodes with a corrupted
++             * tree structure. Fall back to a recursive call to handle this
++             * case.
++             */
++            if ((cur->parent != parent) && (cur->children != NULL)) {
++                xmlNodeDumpOutputInternal(ctxt, cur);
++                break;
++            }
++
++	    if ((ctxt->level > 0) && (ctxt->format == 1) &&
++                (xmlIndentTreeOutput))
+ 		xmlOutputBufferWrite(buf, ctxt->indent_size *
+ 				     (ctxt->level > ctxt->indent_nr ?
+ 				      ctxt->indent_nr : ctxt->level),
+@@ -942,6 +956,7 @@ xmlNodeDumpOutputInternal(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+                 xmlOutputBufferWrite(buf, 1, ">");
+                 if (ctxt->format == 1) xmlOutputBufferWrite(buf, 1, "\n");
+                 if (ctxt->level >= 0) ctxt->level++;
++                parent = cur;
+                 cur = cur->children;
+                 continue;
+             }
+@@ -1058,13 +1073,9 @@ xmlNodeDumpOutputInternal(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+                 break;
+             }
+ 
+-            /*
+-             * The parent should never be NULL here but we want to handle
+-             * corrupted documents gracefully.
+-             */
+-            if (cur->parent == NULL)
+-                return;
+-            cur = cur->parent;
++            cur = parent;
++            /* cur->parent was validated when descending. */
++            parent = cur->parent;
+ 
+             if (cur->type == XML_ELEMENT_NODE) {
+                 if (ctxt->level > 0) ctxt->level--;
+diff --git a/xmlsave.c b/xmlsave.c
+--- a/xmlsave.c
++++ b/xmlsave.c
+@@ -890,6 +890,13 @@ xmlNodeDumpOutputInternal(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+             break;
+ 
+         case XML_ELEMENT_NODE:
++	    if ((cur != root) && (ctxt->format == 1) &&
++                (xmlIndentTreeOutput))
++		xmlOutputBufferWrite(buf, ctxt->indent_size *
++				     (ctxt->level > ctxt->indent_nr ?
++				      ctxt->indent_nr : ctxt->level),
++				     ctxt->indent);
++
+             /*
+              * Some users like lxml are known to pass nodes with a corrupted
+              * tree structure. Fall back to a recursive call to handle this
+@@ -900,13 +907,6 @@ xmlNodeDumpOutputInternal(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+                 break;
+             }
+ 
+-	    if ((ctxt->level > 0) && (ctxt->format == 1) &&
+-                (xmlIndentTreeOutput))
+-		xmlOutputBufferWrite(buf, ctxt->indent_size *
+-				     (ctxt->level > ctxt->indent_nr ?
+-				      ctxt->indent_nr : ctxt->level),
+-				     ctxt->indent);
+-
+             xmlOutputBufferWrite(buf, 1, "<");
+             if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
+                 xmlOutputBufferWriteString(buf, (const char *)cur->ns->prefix);
diff --git a/gnu/packages/patches/libxml2-terminating-newline.patch b/gnu/packages/patches/libxml2-terminating-newline.patch
new file mode 100644
index 0000000000..3f5c88dd4e
--- /dev/null
+++ b/gnu/packages/patches/libxml2-terminating-newline.patch
@@ -0,0 +1,33 @@
+Fix a regression in 2.9.12 where serializing empty HTML documents would
+not add a terminating newline.
+
+  https://gitlab.gnome.org/GNOME/libxml2/-/issues/266
+
+Taken from upstream:
+
+  https://gitlab.gnome.org/GNOME/libxml2/-/commit/92d9ab4c28842a09ca2b76d3ff2f933e01b6cd6f
+
+diff --git a/HTMLtree.c b/HTMLtree.c
+--- a/HTMLtree.c
++++ b/HTMLtree.c
+@@ -763,11 +763,15 @@ htmlNodeDumpFormatOutput(xmlOutputBufferPtr buf, xmlDocPtr doc,
+             if (((xmlDocPtr) cur)->intSubset != NULL) {
+                 htmlDtdDumpOutput(buf, (xmlDocPtr) cur, NULL);
+             }
+-            /* Always validate cur->parent when descending. */
+-            if ((cur->parent == parent) && (cur->children != NULL)) {
+-                parent = cur;
+-                cur = cur->children;
+-                continue;
++            if (cur->children != NULL) {
++                /* Always validate cur->parent when descending. */
++                if (cur->parent == parent) {
++                    parent = cur;
++                    cur = cur->children;
++                    continue;
++                }
++            } else {
++                xmlOutputBufferWriteString(buf, "\n");
+             }
+             break;
+ 
diff --git a/gnu/packages/patches/libxml2-xpath-recursion-limit.patch b/gnu/packages/patches/libxml2-xpath-recursion-limit.patch
new file mode 100644
index 0000000000..051196c635
--- /dev/null
+++ b/gnu/packages/patches/libxml2-xpath-recursion-limit.patch
@@ -0,0 +1,20 @@
+Fix recursion accounting in XPath expressions:
+
+  https://gitlab.gnome.org/GNOME/libxml2/-/issues/264
+
+Taken from upstream:
+
+  https://gitlab.gnome.org/GNOME/libxml2/-/commit/3e1aad4fe584747fd7d17cc7b2863a78e2d21a77
+
+diff --git a/xpath.c b/xpath.c
+--- a/xpath.c
++++ b/xpath.c
+@@ -10983,7 +10983,7 @@ xmlXPathCompileExpr(xmlXPathParserContextPtr ctxt, int sort) {
+     }
+ 
+     if (xpctxt != NULL)
+-        xpctxt->depth -= 1;
++        xpctxt->depth -= 10;
+ }
+ 
+ /**
diff --git a/gnu/packages/patches/libxt-guix-search-paths.patch b/gnu/packages/patches/libxt-guix-search-paths.patch
index 5419edd1bd..61022d232a 100644
--- a/gnu/packages/patches/libxt-guix-search-paths.patch
+++ b/gnu/packages/patches/libxt-guix-search-paths.patch
@@ -1,13 +1,9 @@
 diff --git a/src/Intrinsic.c b/src/Intrinsic.c
-index c9624ec..addcdba 100644
 --- a/src/Intrinsic.c
 +++ b/src/Intrinsic.c
-@@ -1312,21 +1312,101 @@ static void FillInLangSubs(
-     } else (void) strcpy(*rest, string);
+@@ -1345,21 +1345,99 @@ FillInLangSubs(Substitution subs, XtPerDisplay pd)
  }
  
-+
-+
  /*
 - * default path used if environment variable XFILESEARCHPATH
 - * is not defined.  Also substitued for %D.
@@ -24,8 +20,9 @@ index c9624ec..addcdba 100644
 +   These values provide the default paths where Guix/GuixSD can expect
 +   to find resources for installed packages.
   */
--static const char *implementation_default_path(void)
-+static const char *guix_default_path(void)
+ static const char *
+-implementation_default_path(void)
++guix_default_path(void)
  {
 -#if defined(WIN32)
 -    static char xfilesearchpath[] = "";
@@ -115,7 +112,7 @@ index c9624ec..addcdba 100644
  }
  
  
-@@ -1354,7 +1434,7 @@ _XtString XtResolvePathname(
+@@ -1388,7 +1466,7 @@ XtResolvePathname(Display *dpy,
  {
      XtPerDisplay pd;
      static const char *defaultPath = NULL;
diff --git a/gnu/packages/patches/mariadb-cmake-compat.patch b/gnu/packages/patches/mariadb-cmake-compat.patch
new file mode 100644
index 0000000000..44b0daa186
--- /dev/null
+++ b/gnu/packages/patches/mariadb-cmake-compat.patch
@@ -0,0 +1,17 @@
+Fix if statement that triggers syntax error in CMake 3.20 and later.
+
+Taken from upstream:
+https://github.com/mariadb-corporation/mariadb-connector-c/commit/242cab8c
+
+diff --git a/libmariadb/cmake/ConnectorName.cmake b/libmariadb/cmake/ConnectorName.cmake
+--- a/libmariadb/cmake/ConnectorName.cmake
++++ b/libmariadb/cmake/ConnectorName.cmake
+@@ -22,7 +22,7 @@ IF(CMAKE_SYSTEM_NAME MATCHES "Windows")
+     SET(MACHINE_NAME "x64")
+   ELSE()
+     SET(MACHINE_NAME "32")
+-  END()
++  ENDIF()
+ ENDIF()
+ 
+ SET(product_name "mysql-connector-c-${CPACK_PACKAGE_VERSION}-${PLATFORM_NAME}${CONCAT_SIGN}${MACHINE_NAME}")
\ No newline at end of file
diff --git a/gnu/packages/patches/meson-for-build-rpath.patch b/gnu/packages/patches/meson-for-build-rpath.patch
deleted file mode 100644
index ef9a73f07c..0000000000
--- a/gnu/packages/patches/meson-for-build-rpath.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-This patch removes a part of meson that clears the rpath upon installation.
-This will only be applied to a special version of meson, used for the
-meson-build-system.
-
-Original patch for Meson 0.42.0 by Peter Mikkelsen <petermikkelsen10@gmail.com>
-
---- meson-0.47.1/mesonbuild/minstall.py.old	2018-08-10 11:01:27.812327013 +0200
-+++ meson-0.47.1/mesonbuild/minstall.py	2018-08-10 11:01:51.940368505 +0200
-@@ -436,15 +436,6 @@
-                         print("Symlink creation does not work on this platform. "
-                               "Skipping all symlinking.")
-                         printed_symlink_error = True
--            if os.path.isfile(outname):
--                try:
--                    depfixer.fix_rpath(outname, install_rpath, final_path,
--                                       install_name_mappings, verbose=False)
--                except SystemExit as e:
--                    if isinstance(e.code, int) and e.code == 0:
--                        pass
--                    else:
--                        raise
- 
- def run(args):
-     parser = buildparser()
diff --git a/gnu/packages/patches/mit-krb5-hurd.patch b/gnu/packages/patches/mit-krb5-hurd.patch
index d4962b1e60..449320cea4 100644
--- a/gnu/packages/patches/mit-krb5-hurd.patch
+++ b/gnu/packages/patches/mit-krb5-hurd.patch
@@ -148,18 +148,3 @@ index 7e981d4..d83b3b6 100644
 +# define MAXPATHLEN 4096
 +#endif
  #endif /* _DB_INT_H_ */
-diff --git a/src/tests/resolve/resolve.c b/src/tests/resolve/resolve.c
-index 7339d21..38f7253 100644
---- a/src/tests/resolve/resolve.c
-+++ b/src/tests/resolve/resolve.c
-@@ -73,6 +73,10 @@ char *strchr();
- #include <netinet/in.h>
- #include <netdb.h>
- 
-+#ifndef MAXHOSTNAMELEN
-+# define MAXHOSTNAMELEN 256
-+#endif
-+
- int
- main(argc, argv)
-     int argc;
diff --git a/gnu/packages/patches/mit-krb5-qualify-short-hostnames.patch b/gnu/packages/patches/mit-krb5-qualify-short-hostnames.patch
deleted file mode 100644
index 491a358731..0000000000
--- a/gnu/packages/patches/mit-krb5-qualify-short-hostnames.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-Fix a null pointer dereference when no DNS search path is configured.
-This showed up as a segfault while running the gsasl test suite.
-
-Taken from upstream:
-https://github.com/krb5/krb5/commit/cd82bf377e7fad2409c76bf8b241920692f34fda
-
-diff --git a/src/lib/krb5/os/dnsglue.c b/src/lib/krb5/os/dnsglue.c
-index e35ca9d76c..0cd213fdd7 100644
---- a/src/lib/krb5/os/dnsglue.c
-+++ b/src/lib/krb5/os/dnsglue.c
-@@ -91,7 +91,7 @@ static int initparse(struct krb5int_dns_state *);
- #define DECLARE_HANDLE(h) struct __res_state h
- #define INIT_HANDLE(h) (memset(&h, 0, sizeof(h)), res_ninit(&h) == 0)
- #define SEARCH(h, n, c, t, a, l) res_nsearch(&h, n, c, t, a, l)
--#define PRIMARY_DOMAIN(h) strdup(h.dnsrch[0])
-+#define PRIMARY_DOMAIN(h) ((h.dnsrch[0] == NULL) ? NULL : strdup(h.dnsrch[0]))
- #if HAVE_RES_NDESTROY
- #define DESTROY_HANDLE(h) res_ndestroy(&h)
- #else
-@@ -104,7 +104,8 @@ static int initparse(struct krb5int_dns_state *);
- #define DECLARE_HANDLE(h)
- #define INIT_HANDLE(h) (res_init() == 0)
- #define SEARCH(h, n, c, t, a, l) res_search(n, c, t, a, l)
--#define PRIMARY_DOMAIN(h) strdup(_res.defdname)
-+#define PRIMARY_DOMAIN(h) \
-+    ((_res.defdname == NULL) ? NULL : strdup(_res.defdname))
- #define DESTROY_HANDLE(h)
- 
- #endif
diff --git a/gnu/packages/patches/nss-getcwd-nonnull.patch b/gnu/packages/patches/nss-getcwd-nonnull.patch
new file mode 100644
index 0000000000..37c1b1c539
--- /dev/null
+++ b/gnu/packages/patches/nss-getcwd-nonnull.patch
@@ -0,0 +1,30 @@
+Disable -Werror=nonnull on getcwd(0, 4096) because GCC incorrectly warns that
+the second argument should be NULL with recent glibc.  See:
+
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96832
+https://sourceware.org/bugzilla/show_bug.cgi?id=26545
+
+diff --git a/nss/coreconf/nsinstall/nsinstall.c b/nss/coreconf/nsinstall/nsinstall.c
+--- a/nss/coreconf/nsinstall/nsinstall.c
++++ b/nss/coreconf/nsinstall/nsinstall.c
+@@ -236,14 +236,20 @@ main(int argc, char **argv)
+ 	return 0;
+ 
+     if (!cwd) {
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Wnonnull"
+ 	cwd = GETCWD(0, PATH_MAX);
++#pragma GCC diagnostic pop
+ 	if (!cwd)
+ 	    fail("could not get CWD");
+     }
+ 
+     /* make sure we can get into todir. */
+     xchdir(todir);
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Wnonnull"
+     todir = GETCWD(0, PATH_MAX);
++#pragma GCC diagnostic pop
+     if (!todir)
+ 	fail("could not get CWD in todir");
+     tdlen = strlen(todir);
diff --git a/gnu/packages/patches/perl-cross.patch b/gnu/packages/patches/perl-cross.patch
deleted file mode 100644
index a7d10b4e1f..0000000000
--- a/gnu/packages/patches/perl-cross.patch
+++ /dev/null
@@ -1,60 +0,0 @@
-Submitted upstream.
-
-From 4c3eb19a11dfe5c88c902481a8294c4f675fcd03 Mon Sep 17 00:00:00 2001
-From: "Jan (janneke) Nieuwenhuizen" <janneke@gnu.org>
-Date: Sun, 19 Apr 2020 23:33:28 +0200
-Subject: [PATCH] Support cross-compiling to the Hurd.
-
-* cnf/hints/gnu: New file.
-* cnf/configure_tool.sh: Guess it.
----
- cnf/configure_tool.sh |  4 ++++
- cnf/hints/gnu         | 21 +++++++++++++++++++++
- 2 files changed, 25 insertions(+)
- create mode 100644 cnf/hints/gnu
-
-diff --git a/cnf/configure_tool.sh b/cnf/configure_tool.sh
-index 32201c0..7b0baa4 100644
---- a/cnf/configure_tool.sh
-+++ b/cnf/configure_tool.sh
-@@ -266,6 +266,10 @@ if not hinted 'osname'; then
- 			define osname "bsd"
- 			result "BSD"
- 			;;
-+		*-gnu*)
-+			define osname "gnu"
-+			result "GNU"
-+			;;
- 		*)
- 			result "no"
- 			;;
-diff --git a/cnf/hints/gnu b/cnf/hints/gnu
-new file mode 100644
-index 0000000..a0583a2
---- /dev/null
-+++ b/cnf/hints/gnu
-@@ -0,0 +1,21 @@
-+# Hurd syscalls
-+d_voidsig='define'
-+d_nanosleep='undef'
-+d_clock_gettime='define'
-+d_clock_getres='define'
-+d_clock_nanosleep='define'
-+d_clock='define'
-+
-+# From the original linux.sh
-+usemallocwrap='define'
-+
-+# libraries to test
-+libswanted='m crypt pthread nm ndbm gdbm dbm db dl gdbm_compat'
-+
-+d_procselfexe='undef'
-+procselfexe='"undef"'
-+
-+st_ino_sign=1
-+st_ino_size=8
-+
-+d_fcntl_can_lock='define'
--- 
-2.26.0
-
diff --git a/gnu/packages/patches/perl-deterministic-ordering.patch b/gnu/packages/patches/perl-deterministic-ordering.patch
deleted file mode 100644
index be63d5cde3..0000000000
--- a/gnu/packages/patches/perl-deterministic-ordering.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-From <https://bugs.debian.org/801523>.
-
-From c01f602d1926b0671fd2c8d91f7e52c4e4c9fb24 Mon Sep 17 00:00:00 2001
-From: Niko Tyni <ntyni@debian.org>
-Date: Sun, 11 Oct 2015 19:27:56 +0300
-Subject: [PATCH] Sort the list of XS code files when generating RealPPPort.xs
-
-all_files_in_dir() uses readdir() ordering to make the list of
-input files. This can vary between build systems, breaking build
-reproducibility.
----
- cpan/Devel-PPPort/PPPort_xs.PL | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/dist/Devel-PPPort/PPPort_xs.PL b/dist/Devel-PPPort/PPPort_xs.PL
-index 5f18940..149f2fe 100644
---- a/dist/Devel-PPPort/PPPort_xs.PL
-+++ b/dist/Devel-PPPort/PPPort_xs.PL
-@@ -38,7 +38,7 @@ END
- my $file;
- my $sec;
- 
--for $file (all_files_in_dir('parts/inc')) {
-+for $file (sort(all_files_in_dir('parts/inc'))) {
-   my $spec = parse_partspec($file);
- 
-   my $msg = 0;
--- 
-2.5.1
diff --git a/gnu/packages/patches/perl-io-socket-ssl-openssl-1.0.2f-fix.patch b/gnu/packages/patches/perl-io-socket-ssl-openssl-1.0.2f-fix.patch
deleted file mode 100644
index f2166aebfd..0000000000
--- a/gnu/packages/patches/perl-io-socket-ssl-openssl-1.0.2f-fix.patch
+++ /dev/null
@@ -1,33 +0,0 @@
-Work around a problem arising from the update to OpenSSL 1.0.2f, based on the
-following upstream commit:
-
-  https://github.com/noxxi/p5-io-socket-ssl/commit/6e23ee4a433f83f1065bd2467255eba5ee9b1ddd
-
-Attempting to update to IO-Socket-SSL-2.023, which includes this commit,
-caused other test failures.  See:
-
-  https://lists.gnu.org/archive/html/guix-devel/2016-01/msg01032.html
-
-Description from the upstream commit:
-
-  OpenSSL 1.0.2f changed the behavior of SSL shutdown in case the TLS connection
-  was not fully established (commit: f73c737c7ac908c5d6407c419769123392a3b0a9).
-  This somehow resulted in Net::SSLeay::shutdown returning 0 (i.e. keep trying)
-  which caused an endless loop. It will now ignore this result in case the TLS
-  connection was not yet established and consider the TLS connection closed
-  instead.
-
---- IO-Socket-SSL-2.002/lib/IO/Socket/SSL.pm.orig	2014-10-21 16:51:16.000000000 -0400
-+++ IO-Socket-SSL-2.002/lib/IO/Socket/SSL.pm	2016-01-31 15:07:14.971099894 -0500
-@@ -1213,6 +1213,11 @@
- 		    # shutdown complete
- 		    last;
- 		}
-+		if ((${*$self}{'_SSL_opened'}||0) <= 0) {
-+		    # not really open, thus don't expect shutdown to return
-+		    # something meaningful
-+		    last;
-+		}
- 
- 		# initiate or complete shutdown
- 		local $SIG{PIPE} = 'IGNORE';
diff --git a/gnu/packages/patches/perl-no-sys-dirs.patch b/gnu/packages/patches/perl-no-sys-dirs.patch
index 2269d715c7..14d634cac9 100644
--- a/gnu/packages/patches/perl-no-sys-dirs.patch
+++ b/gnu/packages/patches/perl-no-sys-dirs.patch
@@ -6,7 +6,7 @@ Patch adapted from Nixpkgs, originally by Eelco Dolstra
 diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/Configure perl-5.20.0/Configure
 --- perl-5.20.0-orig/Configure	2014-05-26 15:34:18.000000000 +0200
 +++ perl-5.20.0/Configure	2014-06-25 10:43:35.368285986 +0200
-@@ -106,15 +106,7 @@
+@@ -108,15 +108,7 @@
  fi
  
  : Proper PATH setting
@@ -23,8 +23,8 @@ diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/Configure perl-5.20.0/Configure
  
  for p in $paths
  do
-@@ -1337,8 +1329,7 @@
- archname=''
+@@ -1435,8 +1427,7 @@
+ i_whoami=''
  : Possible local include directories to search.
  : Set locincpth to "" in a hint file to defeat local include searches.
 -locincpth="/usr/local/include /opt/local/include /usr/gnu/include"
@@ -33,8 +33,8 @@ diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/Configure perl-5.20.0/Configure
  :
  : no include file wanted by default
  inclwanted=''
-@@ -1349,17 +1340,12 @@
- 
+@@ -1450,17 +1441,12 @@
+ archobjs=''
  libnames=''
  : change the next line if compiling for Xenix/286 on Xenix/386
 -xlibpth='/usr/lib/386 /lib/386'
@@ -54,8 +54,8 @@ diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/Configure perl-5.20.0/Configure
  
  : Private path used by Configure to find libraries.  Its value
  : is prepended to libpth. This variable takes care of special
-@@ -1391,8 +1377,6 @@
- libswanted="$libswanted m crypt sec util c cposix posix ucb bsd BSD"
+@@ -1495,8 +1481,6 @@
+ libswanted="$libswanted sun m crypt sec util c cposix posix ucb bsd BSD"
  : We probably want to search /usr/shlib before most other libraries.
  : This is only used by the lib/ExtUtils/MakeMaker.pm routine extliblist.
 -glibpth=`echo " $glibpth " | sed -e 's! /usr/shlib ! !'`
@@ -63,7 +63,7 @@ diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/Configure perl-5.20.0/Configure
  : Do not use vfork unless overridden by a hint file.
  usevfork=false
  
-@@ -2446,7 +2430,6 @@
+@@ -2553,7 +2537,6 @@
  zip
  "
  pth=`echo $PATH | sed -e "s/$p_/ /g"`
@@ -71,7 +71,7 @@ diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/Configure perl-5.20.0/Configure
  for file in $loclist; do
  	eval xxx=\$$file
  	case "$xxx" in
-@@ -4936,7 +4919,7 @@
+@@ -5049,7 +5033,7 @@
  : Set private lib path
  case "$plibpth" in
  '') if ./mips; then
@@ -80,7 +80,7 @@ diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/Configure perl-5.20.0/Configure
      fi;;
  esac
  case "$libpth" in
-@@ -8600,13 +8583,8 @@
+@@ -8877,13 +8861,8 @@
  echo " "
  case "$sysman" in
  '')
@@ -96,7 +96,7 @@ diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/Configure perl-5.20.0/Configure
  	;;
  esac
  if $test -d "$sysman"; then
-@@ -19900,9 +19878,10 @@
+@@ -21027,9 +21006,10 @@
  case "$full_ar" in
  '') full_ar=$ar ;;
  esac
@@ -169,7 +169,7 @@ diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/hints/freebsd.sh perl-5.20.0/hints/
 diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/hints/linux.sh perl-5.20.0/hints/linux.sh
 --- perl-5.20.0-orig/hints/linux.sh	2014-05-26 15:34:20.000000000 +0200
 +++ perl-5.20.0/hints/linux.sh	2014-06-25 10:33:47.354883843 +0200
-@@ -150,25 +150,6 @@
+@@ -150,28 +150,6 @@
      ;;
  esac
  
@@ -188,6 +188,9 @@ diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/hints/linux.sh perl-5.20.0/hints/li
 -# plibpth to bypass this check.
 -if [ -x /usr/bin/gcc ] ; then
 -    gcc=/usr/bin/gcc
+-# clang also provides -print-search-dirs
+-elif ${cc:-cc} --version 2>/dev/null | grep -q '^clang ' ; then
+-    gcc=${cc:-cc}
 -else
 -    gcc=gcc
 -fi
@@ -195,7 +198,40 @@ diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/hints/linux.sh perl-5.20.0/hints/li
  case "$plibpth" in
  '') plibpth=`LANG=C LC_ALL=C $gcc $ccflags $ldflags -print-search-dirs | grep libraries |
  	cut -f2- -d= | tr ':' $trnl | grep -v 'gcc' | sed -e 's:/$::'`
-@@ -367,33 +322,6 @@
+@@ -208,32 +186,6 @@
+   ;;
+ esac
+ 
+-case "$libc" in
+-'')
+-# If you have glibc, then report the version for ./myconfig bug reporting.
+-# (Configure doesn't need to know the specific version since it just uses
+-# gcc to load the library for all tests.)
+-# We don't use __GLIBC__ and  __GLIBC_MINOR__ because they
+-# are insufficiently precise to distinguish things like
+-# libc-2.0.6 and libc-2.0.7.
+-    for p in $plibpth
+-    do
+-        for trylib in libc.so.6 libc.so
+-        do
+-            if $test -e $p/$trylib; then
+-                libc=`ls -l $p/$trylib | awk '{print $NF}'`
+-                if $test "X$libc" != X; then
+-                    break
+-                fi
+-            fi
+-        done
+-        if $test "X$libc" != X; then
+-            break
+-        fi
+-    done
+-    ;;
+-esac
+-
+ if ${sh:-/bin/sh} -c exit; then
+   echo ''
+   echo 'You appear to have a working bash.  Good.'
+@@ -311,33 +263,6 @@
  	;;
  esac
  
@@ -229,40 +265,3 @@ diff -ru -x '*~' -x '*.rej' perl-5.20.0-orig/hints/linux.sh perl-5.20.0/hints/li
  # Linux on Synology.
  if [ -f /etc/synoinfo.conf -a -d /usr/syno ]; then
      # Tested on Synology DS213 and DS413
-diff --git a/hints/linux.sh b/hints/linux.sh
-index 3f38ea0..97aed11 100644
---- a/hints/linux.sh
-+++ b/hints/linux.sh
-@@ -195,32 +195,6 @@ case "$usequadmath" in
-   ;;
- esac
- 
--case "$libc" in
--'')
--# If you have glibc, then report the version for ./myconfig bug reporting.
--# (Configure doesn't need to know the specific version since it just uses
--# gcc to load the library for all tests.)
--# We don't use __GLIBC__ and  __GLIBC_MINOR__ because they
--# are insufficiently precise to distinguish things like
--# libc-2.0.6 and libc-2.0.7.
--    for p in $plibpth
--    do
--        for trylib in libc.so.6 libc.so
--        do
--            if $test -e $p/$trylib; then
--                libc=`ls -l $p/$trylib | awk '{print $NF}'`
--                if $test "X$libc" != X; then
--                    break
--                fi
--            fi
--        done
--        if $test "X$libc" != X; then
--            break
--        fi
--    done
--    ;;
--esac
--
- if ${sh:-/bin/sh} -c exit; then
-   echo ''
-   echo 'You appear to have a working bash.  Good.'
diff --git a/gnu/packages/patches/python-2.7-no-static-lib.patch b/gnu/packages/patches/python-2.7-no-static-lib.patch
new file mode 100644
index 0000000000..02529989be
--- /dev/null
+++ b/gnu/packages/patches/python-2.7-no-static-lib.patch
@@ -0,0 +1,70 @@
+From 92e2dcace7a3c02289b314238c5f18caec659ff1 Mon Sep 17 00:00:00 2001
+From: Julien Lepiller <julien@lepiller.eu>
+Date: Sat, 5 Jun 2021 12:41:47 +0200
+Subject: [PATCH] No static lib.
+
+This patch is adapted from Fedora. The original patch did not apply
+because of whitespace changes.
+
+00111 #
+Patch the Makefile.pre.in so that the generated Makefile doesn't try to build
+a libpythonMAJOR.MINOR.a (bug 550692):
+Downstream only: not appropriate for upstream
+---
+ Makefile.pre.in | 26 +-------------------------
+ 1 file changed, 1 insertion(+), 25 deletions(-)
+
+diff --git a/Makefile.pre.in b/Makefile.pre.in
+index 6239fc3..948f196 100644
+--- a/Makefile.pre.in
++++ b/Makefile.pre.in
+@@ -486,7 +486,7 @@ coverage-report: regen-grammar
+ 
+ 
+ # Build the interpreter
+-$(BUILDPYTHON):	Modules/python.o $(LIBRARY) $(LDLIBRARY)
++$(BUILDPYTHON):	Modules/python.o $(LDLIBRARY)
+ 		$(LINKCC) $(LDFLAGS) $(LINKFORSHARED) -o $@ \
+ 			Modules/python.o \
+ 			$(BLDLIBRARY) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)
+@@ -527,18 +527,6 @@ sharedmods: $(BUILDPYTHON) pybuilddir.txt Modules/_math.o
+ 		_TCLTK_INCLUDES='$(TCLTK_INCLUDES)' _TCLTK_LIBS='$(TCLTK_LIBS)' \
+ 		$(PY_BUILD_ENVIRON) $(PYTHON_FOR_BUILD) $(srcdir)/setup.py $$quiet build
+ 
+-# Build static library
+-# avoid long command lines, same as LIBRARY_OBJS
+-$(LIBRARY): $(LIBRARY_OBJS)
+-	-rm -f $@
+-	$(AR) $(ARFLAGS) $@ Modules/getbuildinfo.o
+-	$(AR) $(ARFLAGS) $@ $(PARSER_OBJS)
+-	$(AR) $(ARFLAGS) $@ $(OBJECT_OBJS)
+-	$(AR) $(ARFLAGS) $@ $(PYTHON_OBJS)
+-	$(AR) $(ARFLAGS) $@ $(MODULE_OBJS) $(SIGNAL_OBJS)
+-	$(AR) $(ARFLAGS) $@ $(MODOBJS)
+-	$(RANLIB) $@
+-
+ libpython$(VERSION).so: $(LIBRARY_OBJS)
+ 	if test $(INSTSONAME) != $(LDLIBRARY); then \
+ 		$(BLDSHARED) -Wl,-h$(INSTSONAME) -o $(INSTSONAME) $(LIBRARY_OBJS) $(MODLIBS) $(SHLIBS) $(LIBC) $(LIBM) $(LDLAST); \
+@@ -1216,18 +1204,6 @@ libainstall:	@DEF_MAKE_RULE@ python-config
+ 		else	true; \
+ 		fi; \
+ 	done
+-	@if test -d $(LIBRARY); then :; else \
+-		if test "$(PYTHONFRAMEWORKDIR)" = no-framework; then \
+-			if test "$(SO)" = .dll; then \
+-				$(INSTALL_DATA) $(LDLIBRARY) $(DESTDIR)$(LIBPL) ; \
+-			else \
+-				$(INSTALL_DATA) $(LIBRARY) $(DESTDIR)$(LIBPL)/$(LIBRARY) ; \
+-				$(RANLIB) $(DESTDIR)$(LIBPL)/$(LIBRARY) ; \
+-			fi; \
+-		else \
+-			echo Skip install of $(LIBRARY) - use make frameworkinstall; \
+-		fi; \
+-	fi
+ 	$(INSTALL_DATA) Modules/config.c $(DESTDIR)$(LIBPL)/config.c
+ 	$(INSTALL_DATA) Modules/python.o $(DESTDIR)$(LIBPL)/python.o
+ 	$(INSTALL_DATA) $(srcdir)/Modules/config.c.in $(DESTDIR)$(LIBPL)/config.c.in
+-- 
+2.31.1
+
diff --git a/gnu/packages/patches/python-3-fix-tests.patch b/gnu/packages/patches/python-3-fix-tests.patch
index e13790bd41..b44e743c71 100644
--- a/gnu/packages/patches/python-3-fix-tests.patch
+++ b/gnu/packages/patches/python-3-fix-tests.patch
@@ -1,10 +1,39 @@
-See the discussion about the issues fixed here at:
-http://bugs.python.org/issue20868 .
+From f0698133e7d6c353a3e6ae0fc62e57ba558a9bc0 Mon Sep 17 00:00:00 2001
+From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
+Date: Wed, 28 Oct 2020 22:55:05 -0400
+Subject: [PATCH] Skip problematic Python 3 tests in Guix.
+
+A subset of the hunks in this patch is tracked upstream at
+https://bugs.python.org/issue38845, which was contributed by Tanguy Le
+Carrour <tanguy@bioneland.org>.
+---
+ Lib/ctypes/test/test_callbacks.py         | 3 +++
+ Lib/ctypes/test/test_find.py              | 1 +
+ Lib/ctypes/test/test_libc.py              | 3 +++
+ Lib/distutils/tests/test_archive_util.py  | 2 ++
+ Lib/distutils/tests/test_sdist.py         | 1 +
+ Lib/test/_test_multiprocessing.py         | 2 ++
+ Lib/test/test_asyncio/test_base_events.py | 2 ++
+ Lib/test/test_generators.py               | 1 +
+ Lib/test/test_pathlib.py                  | 3 +--
+ Lib/test/test_pdb.py                      | 4 ++--
+ Lib/test/test_regrtest.py                 | 2 ++
+ Lib/test/test_resource.py                 | 1 +
+ Lib/test/test_shutil.py                   | 2 ++
+ Lib/test/test_signal.py                   | 4 ++++
+ Lib/test/test_socket.py                   | 8 ++++++++
+ Lib/test/test_spwd.py                     | 6 ++----
+ Lib/test/test_tarfile.py                  | 9 ++++++---
+ Lib/test/test_threading.py                | 3 +++
+ Lib/test/test_unicodedata.py              | 1 +
+ Tools/scripts/run_tests.py                | 2 +-
+ 20 files changed, 48 insertions(+), 12 deletions(-)
 
 diff --git a/Lib/ctypes/test/test_callbacks.py b/Lib/ctypes/test/test_callbacks.py
+index d8e9c5a760..94fc5929c9 100644
 --- a/Lib/ctypes/test/test_callbacks.py
 +++ b/Lib/ctypes/test/test_callbacks.py
-@@ -3,6 +3,7 @@ import unittest
+@@ -5,6 +5,7 @@ from test import support
  from ctypes import *
  from ctypes.test import need_symbol
  import _ctypes_test
@@ -12,7 +41,7 @@ diff --git a/Lib/ctypes/test/test_callbacks.py b/Lib/ctypes/test/test_callbacks.
  
  class Callbacks(unittest.TestCase):
      functype = CFUNCTYPE
-@@ -176,6 +177,8 @@ class SampleCallbacksTestCase(unittest.TestCase):
+@@ -178,6 +179,8 @@ class SampleCallbacksTestCase(unittest.TestCase):
  
          self.assertLess(diff, 0.01, "%s not less than 0.01" % diff)
  
@@ -21,7 +50,20 @@ diff --git a/Lib/ctypes/test/test_callbacks.py b/Lib/ctypes/test/test_callbacks.
      def test_issue_8959_a(self):
          from ctypes.util import find_library
          libc_path = find_library("c")
+diff --git a/Lib/ctypes/test/test_find.py b/Lib/ctypes/test/test_find.py
+index 92ac1840ad..c8eb75dedd 100644
+--- a/Lib/ctypes/test/test_find.py
++++ b/Lib/ctypes/test/test_find.py
+@@ -116,6 +116,7 @@ class FindLibraryLinux(unittest.TestCase):
+         with unittest.mock.patch("ctypes.util._findSoname_ldconfig", lambda *args: None):
+             self.assertNotEqual(find_library('c'), None)
+ 
++    @unittest.skipIf(True, "ldconfig is not used on Guix")
+     def test_find_library_with_ld(self):
+         with unittest.mock.patch("ctypes.util._findSoname_ldconfig", lambda *args: None), \
+              unittest.mock.patch("ctypes.util._findLib_gcc", lambda *args: None):
 diff --git a/Lib/ctypes/test/test_libc.py b/Lib/ctypes/test/test_libc.py
+index 56285b5ff8..c088ab3db8 100644
 --- a/Lib/ctypes/test/test_libc.py
 +++ b/Lib/ctypes/test/test_libc.py
 @@ -2,6 +2,7 @@ import unittest
@@ -42,6 +84,7 @@ diff --git a/Lib/ctypes/test/test_libc.py b/Lib/ctypes/test/test_libc.py
          comparefunc = CFUNCTYPE(c_int, POINTER(c_char), POINTER(c_char))
          lib.my_qsort.argtypes = c_void_p, c_size_t, c_size_t, comparefunc
 diff --git a/Lib/distutils/tests/test_archive_util.py b/Lib/distutils/tests/test_archive_util.py
+index e9aad0e40f..8bbaa51ee5 100644
 --- a/Lib/distutils/tests/test_archive_util.py
 +++ b/Lib/distutils/tests/test_archive_util.py
 @@ -333,6 +333,7 @@ class ArchiveUtilTestCase(support.TempdirManager,
@@ -61,6 +104,7 @@ diff --git a/Lib/distutils/tests/test_archive_util.py b/Lib/distutils/tests/test
          tmpdir =  self._create_files()
          base_name = os.path.join(self.mkdtemp(), 'archive')
 diff --git a/Lib/distutils/tests/test_sdist.py b/Lib/distutils/tests/test_sdist.py
+index 23db126959..6e2329df7d 100644
 --- a/Lib/distutils/tests/test_sdist.py
 +++ b/Lib/distutils/tests/test_sdist.py
 @@ -443,6 +443,7 @@ class SDistTestCase(BasePyPIRCCommandTestCase):
@@ -72,9 +116,10 @@ diff --git a/Lib/distutils/tests/test_sdist.py b/Lib/distutils/tests/test_sdist.
          # now building a sdist
          dist, cmd = self.get_cmd()
 diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
+index e47905c863..31a5a9c308 100644
 --- a/Lib/test/_test_multiprocessing.py
 +++ b/Lib/test/_test_multiprocessing.py
-@@ -1473,6 +1473,7 @@ class _TestCondition(BaseTestCase):
+@@ -1577,6 +1577,7 @@ class _TestCondition(BaseTestCase):
          if pid is not None:
              os.kill(pid, signal.SIGINT)
  
@@ -82,10 +127,19 @@ diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.
      def test_wait_result(self):
          if isinstance(self, ProcessesMixin) and sys.platform != 'win32':
              pid = os.getpid()
+@@ -3905,6 +3906,7 @@ class _TestSharedMemory(BaseTestCase):
+         sms.close()
+ 
+     @unittest.skipIf(os.name != "posix", "not feasible in non-posix platforms")
++    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
+     def test_shared_memory_SharedMemoryServer_ignores_sigint(self):
+         # bpo-36368: protect SharedMemoryManager server process from
+         # KeyboardInterrupt signals.
 diff --git a/Lib/test/test_asyncio/test_base_events.py b/Lib/test/test_asyncio/test_base_events.py
+index 533d5cc7f5..c4f860cc3b 100644
 --- a/Lib/test/test_asyncio/test_base_events.py
 +++ b/Lib/test/test_asyncio/test_base_events.py
-@@ -1323,6 +1323,8 @@ class BaseEventLoopWithSelectorTests(test_utils.TestCase):
+@@ -1341,6 +1341,8 @@ class BaseEventLoopWithSelectorTests(test_utils.TestCase):
          self._test_create_connection_ip_addr(m_socket, False)
  
      @patch_socket
@@ -95,9 +149,10 @@ diff --git a/Lib/test/test_asyncio/test_base_events.py b/Lib/test/test_asyncio/t
          m_socket.getaddrinfo = socket.getaddrinfo
          sock = m_socket.socket.return_value
 diff --git a/Lib/test/test_generators.py b/Lib/test/test_generators.py
+index 3bf1522808..04bac8a7db 100644
 --- a/Lib/test/test_generators.py
 +++ b/Lib/test/test_generators.py
-@@ -34,6 +34,7 @@ class SignalAndYieldFromTest(unittest.TestCase):
+@@ -33,6 +33,7 @@ class SignalAndYieldFromTest(unittest.TestCase):
          else:
              return "FAILED"
  
@@ -105,30 +160,11 @@ diff --git a/Lib/test/test_generators.py b/Lib/test/test_generators.py
      def test_raise_and_yield_from(self):
          gen = self.generator1()
          gen.send(None)
-diff --git a/Lib/test/test_normalization.py b/Lib/test/test_normalization.py
---- a/Lib/test/test_normalization.py
-+++ b/Lib/test/test_normalization.py
-@@ -2,6 +2,7 @@ from test.support import open_urlresource
- import unittest
- 
- from http.client import HTTPException
-+from urllib.error import URLError
- import sys
- from unicodedata import normalize, unidata_version
- 
-@@ -43,6 +44,8 @@ class NormalizationTest(unittest.TestCase):
-         except PermissionError:
-             self.skipTest(f"Permission error when downloading {TESTDATAURL} "
-                           f"into the test data directory")
-+        except URLError:
-+            self.skipTest("DNS lookups are not enabled.")
-         except (OSError, HTTPException):
-             self.fail(f"Could not retrieve {TESTDATAURL}")
- 
 diff --git a/Lib/test/test_pathlib.py b/Lib/test/test_pathlib.py
+index 3da35710b9..5404f9193d 100644
 --- a/Lib/test/test_pathlib.py
 +++ b/Lib/test/test_pathlib.py
-@@ -2134,8 +2134,7 @@ class PosixPathTest(_BasePathTest, unittest.TestCase):
+@@ -2408,8 +2408,7 @@ class PosixPathTest(_BasePathTest, unittest.TestCase):
          self.assertEqual(given, expect)
          self.assertEqual(set(p.rglob("FILEd*")), set())
  
@@ -139,9 +175,10 @@ diff --git a/Lib/test/test_pathlib.py b/Lib/test/test_pathlib.py
          P = self.cls
          support.import_module('pwd')
 diff --git a/Lib/test/test_pdb.py b/Lib/test/test_pdb.py
+index 8016f81e5a..10190486b4 100644
 --- a/Lib/test/test_pdb.py
 +++ b/Lib/test/test_pdb.py
-@@ -1150,11 +1150,11 @@ def test_pdb_issue_20766():
+@@ -1219,11 +1219,11 @@ def test_pdb_issue_20766():
      > <doctest test.test_pdb.test_pdb_issue_20766[0]>(6)test_function()
      -> print('pdb %d: %s' % (i, sess._previous_sigint_handler))
      (Pdb) continue
@@ -156,9 +193,10 @@ diff --git a/Lib/test/test_pdb.py b/Lib/test/test_pdb.py
  
  
 diff --git a/Lib/test/test_regrtest.py b/Lib/test/test_regrtest.py
+index a77638b10a..2069b349a8 100644
 --- a/Lib/test/test_regrtest.py
 +++ b/Lib/test/test_regrtest.py
-@@ -762,6 +762,7 @@ class ArgsTestCase(BaseTestCase):
+@@ -811,6 +811,7 @@ class ArgsTestCase(BaseTestCase):
          output = self.run_tests('--fromfile', filename)
          self.check_executed_tests(output, tests)
  
@@ -166,7 +204,7 @@ diff --git a/Lib/test/test_regrtest.py b/Lib/test/test_regrtest.py
      def test_interrupted(self):
          code = TEST_INTERRUPTED
          test = self.create_test('sigint', code=code)
-@@ -779,6 +780,7 @@ class ArgsTestCase(BaseTestCase):
+@@ -828,6 +829,7 @@ class ArgsTestCase(BaseTestCase):
                   % (self.TESTNAME_REGEX, len(tests)))
          self.check_line(output, regex)
  
@@ -175,9 +213,10 @@ diff --git a/Lib/test/test_regrtest.py b/Lib/test/test_regrtest.py
          # Issue #25373: test --slowest with an interrupted test
          code = TEST_INTERRUPTED
 diff --git a/Lib/test/test_resource.py b/Lib/test/test_resource.py
+index e5ece5284c..5299e54507 100644
 --- a/Lib/test/test_resource.py
 +++ b/Lib/test/test_resource.py
-@@ -145,6 +145,7 @@ class ResourceTest(unittest.TestCase):
+@@ -148,6 +148,7 @@ class ResourceTest(unittest.TestCase):
  
      @unittest.skipUnless(hasattr(resource, 'prlimit'), 'no prlimit')
      @support.requires_linux_version(2, 6, 36)
@@ -186,37 +225,75 @@ diff --git a/Lib/test/test_resource.py b/Lib/test/test_resource.py
          self.assertRaises(TypeError, resource.prlimit)
          self.assertRaises(ProcessLookupError, resource.prlimit,
 diff --git a/Lib/test/test_shutil.py b/Lib/test/test_shutil.py
+index e19af64be0..1b893df6fa 100644
 --- a/Lib/test/test_shutil.py
 +++ b/Lib/test/test_shutil.py
-@@ -1143,6 +1143,7 @@ class TestShutil(unittest.TestCase):
+@@ -1427,6 +1427,7 @@ class TestArchives(BaseTest, unittest.TestCase):
+         base_name = os.path.join(tmpdir, 'archive')
          self.assertRaises(ValueError, make_archive, base_name, 'xxx')
  
-     @support.requires_zlib
-+    @unittest.skipIf(True, "getgrgid(0)[0] raises a KeyError on Guix")
++    @unittest.skipIf(True, "The Guix build container has no root user")
+     @support.requires_zlib()
      def test_make_archive_owner_group(self):
          # testing make_archive with owner and group, with various combinations
-         # this works even if there's not gid/uid support
-@@ -1171,6 +1172,7 @@ class TestShutil(unittest.TestCase):
+@@ -1455,6 +1456,7 @@ class TestArchives(BaseTest, unittest.TestCase):
+         self.assertTrue(os.path.isfile(res))
  
  
-     @support.requires_zlib
-+    @unittest.skipIf(True, "getgrgid(0)[0] raises a KeyError on Guix")
++    @unittest.skipIf(True, "The Guix build container has no root user")
+     @support.requires_zlib()
      @unittest.skipUnless(UID_GID_SUPPORT, "Requires grp and pwd support")
      def test_tarfile_root_owner(self):
-         root_dir, base_dir = self._create_files()
+diff --git a/Lib/test/test_signal.py b/Lib/test/test_signal.py
+index 45553a6a42..55623f01a3 100644
+--- a/Lib/test/test_signal.py
++++ b/Lib/test/test_signal.py
+@@ -78,6 +78,7 @@ class PosixTests(unittest.TestCase):
+         self.assertLess(len(s), signal.NSIG)
+ 
+     @unittest.skipUnless(sys.executable, "sys.executable required.")
++    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
+     def test_keyboard_interrupt_exit_code(self):
+         """KeyboardInterrupt triggers exit via SIGINT."""
+         process = subprocess.run(
+@@ -128,6 +129,7 @@ class WindowsSignalTests(unittest.TestCase):
+             signal.signal(7, handler)
+ 
+     @unittest.skipUnless(sys.executable, "sys.executable required.")
++    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
+     def test_keyboard_interrupt_exit_code(self):
+         """KeyboardInterrupt triggers an exit using STATUS_CONTROL_C_EXIT."""
+         # We don't test via os.kill(os.getpid(), signal.CTRL_C_EVENT) here
+@@ -1245,6 +1247,7 @@ class StressTest(unittest.TestCase):
+ 
+ class RaiseSignalTest(unittest.TestCase):
+ 
++    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
+     def test_sigint(self):
+         with self.assertRaises(KeyboardInterrupt):
+             signal.raise_signal(signal.SIGINT)
+@@ -1275,6 +1278,7 @@ class RaiseSignalTest(unittest.TestCase):
+ 
+ class PidfdSignalTest(unittest.TestCase):
+ 
++    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
+     @unittest.skipUnless(
+         hasattr(signal, "pidfd_send_signal"),
+         "pidfd support not built in",
 diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
+index aefba4f397..6c89f558d5 100755
 --- a/Lib/test/test_socket.py
 +++ b/Lib/test/test_socket.py
-@@ -875,6 +875,8 @@ class GeneralModuleTests(unittest.TestCase):
+@@ -1009,6 +1009,8 @@ class GeneralModuleTests(unittest.TestCase):
          if not fqhn in all_host_names:
              self.fail("Error testing host resolution mechanisms. (fqdn: %s, all: %s)" % (fqhn, repr(all_host_names)))
  
 +    @unittest.skipUnless(support.is_resource_enabled('network'),
 +                         'network is not enabled')
      def test_host_resolution(self):
-         for addr in [support.HOSTv4, '10.0.0.1', '255.255.255.255']:
+         for addr in [socket_helper.HOSTv4, '10.0.0.1', '255.255.255.255']:
              self.assertEqual(socket.gethostbyname(addr), addr)
-@@ -1004,6 +1006,8 @@ class GeneralModuleTests(unittest.TestCase):
+@@ -1140,6 +1142,8 @@ class GeneralModuleTests(unittest.TestCase):
              self.assertWarns(DeprecationWarning, socket.ntohs, k)
              self.assertWarns(DeprecationWarning, socket.htons, k)
  
@@ -225,7 +302,7 @@ diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
      def testGetServBy(self):
          eq = self.assertEqual
          # Find one service that exists, then check all the related interfaces.
-@@ -1358,6 +1362,8 @@ class GeneralModuleTests(unittest.TestCase):
+@@ -1489,6 +1493,8 @@ class GeneralModuleTests(unittest.TestCase):
              raise
          self.assertRaises(TypeError, s.ioctl, socket.SIO_LOOPBACK_FAST_PATH, None)
  
@@ -234,7 +311,7 @@ diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
      def testGetaddrinfo(self):
          try:
              socket.getaddrinfo('localhost', 80)
-@@ -1440,6 +1446,8 @@ class GeneralModuleTests(unittest.TestCase):
+@@ -1571,6 +1577,8 @@ class GeneralModuleTests(unittest.TestCase):
          # only IP addresses are allowed
          self.assertRaises(OSError, socket.getnameinfo, ('mail.python.org',0), 0)
  
@@ -244,6 +321,7 @@ diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
                           'network is not enabled')
      def test_idna(self):
 diff --git a/Lib/test/test_spwd.py b/Lib/test/test_spwd.py
+index 07793c84c8..fec672bcbe 100644
 --- a/Lib/test/test_spwd.py
 +++ b/Lib/test/test_spwd.py
 @@ -5,8 +5,7 @@ from test import support
@@ -267,9 +345,10 @@ diff --git a/Lib/test/test_spwd.py b/Lib/test/test_spwd.py
  
      def test_getspnam_exception(self):
 diff --git a/Lib/test/test_tarfile.py b/Lib/test/test_tarfile.py
+index 29cde91bf7..8d0f20e8bf 100644
 --- a/Lib/test/test_tarfile.py
 +++ b/Lib/test/test_tarfile.py
-@@ -2509,9 +2509,12 @@ def root_is_uid_gid_0():
+@@ -2607,9 +2607,12 @@ def root_is_uid_gid_0():
          import pwd, grp
      except ImportError:
          return False
@@ -286,9 +365,10 @@ diff --git a/Lib/test/test_tarfile.py b/Lib/test/test_tarfile.py
      return True
  
 diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
+index c21cdf8eb7..6c9d575032 100644
 --- a/Lib/test/test_threading.py
 +++ b/Lib/test/test_threading.py
-@@ -1249,6 +1249,7 @@ class MiscTestCase(unittest.TestCase):
+@@ -1398,6 +1398,7 @@ class MiscTestCase(unittest.TestCase):
  
  
  class InterruptMainTests(unittest.TestCase):
@@ -296,7 +376,7 @@ diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
      def test_interrupt_main_subthread(self):
          # Calling start_new_thread with a function that executes interrupt_main
          # should raise KeyboardInterrupt upon completion.
-@@ -1260,6 +1261,8 @@ class InterruptMainTests(unittest.TestCase):
+@@ -1409,6 +1410,8 @@ class InterruptMainTests(unittest.TestCase):
              t.join()
          t.join()
  
@@ -305,10 +385,23 @@ diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
      def test_interrupt_main_mainthread(self):
          # Make sure that if interrupt_main is called in main thread that
          # KeyboardInterrupt is raised instantly.
+diff --git a/Lib/test/test_unicodedata.py b/Lib/test/test_unicodedata.py
+index b552d2bd17..28b1144e15 100644
+--- a/Lib/test/test_unicodedata.py
++++ b/Lib/test/test_unicodedata.py
+@@ -309,6 +309,7 @@ class UnicodeMiscTest(UnicodeDatabaseTest):
+                 self.assertEqual(len(lines), 1,
+                                  r"\u%.4x should not be a linebreak" % i)
+ 
++@requires_resource('network')
+ class NormalizationTest(unittest.TestCase):
+     @staticmethod
+     def check_version(testfile):
 diff --git a/Tools/scripts/run_tests.py b/Tools/scripts/run_tests.py
+index bcfa5e943b..1f2484971b 100644
 --- a/Tools/scripts/run_tests.py
 +++ b/Tools/scripts/run_tests.py
-@@ -39,7 +39,7 @@ def main(regrtest_args):
+@@ -41,7 +41,7 @@ def main(regrtest_args):
      if not any(is_multiprocess_flag(arg) for arg in regrtest_args):
          args.extend(['-j', '0'])  # Use all CPU cores
      if not any(is_resource_use_flag(arg) for arg in regrtest_args):
@@ -317,3 +410,6 @@ diff --git a/Tools/scripts/run_tests.py b/Tools/scripts/run_tests.py
      args.extend(regrtest_args)
      print(' '.join(args))
      if sys.platform == 'win32':
+-- 
+2.29.2
+
diff --git a/gnu/packages/patches/python-3-hurd-configure.patch b/gnu/packages/patches/python-3-hurd-configure.patch
new file mode 100644
index 0000000000..aa25a401c5
--- /dev/null
+++ b/gnu/packages/patches/python-3-hurd-configure.patch
@@ -0,0 +1,27 @@
+Upstream status: Not upstreamed.
+
+The build system refuses to cross-compile for unknown targets
+even though it works fine.  Add GNU/Hurd target.
+
+--- Python-3.8.5/configure.orig	2020-10-26 14:06:09.665423525 +0100
++++ Python-3.8.5/configure	2020-10-26 14:08:30.987765738 +0100
+@@ -3278,6 +3278,9 @@
+ 	*-*-vxworks*)
+ 	    ac_sys_system=VxWorks
+ 	    ;;
++	*-*-gnu)
++	    ac_sys_system=GNU
++	    ;;
+ 	*)
+ 		# for now, limit cross builds to known configurations
+ 		MACHDEP="unknown"
+@@ -3328,6 +3331,9 @@
+ 	*-*-vxworks*)
+ 		_host_cpu=$host_cpu
+ 		;;
++	*-*-gnu)
++		_host_cpu=$host_cpu
++	    ;;
+ 	*)
+ 		# for now, limit cross builds to known configurations
+ 		MACHDEP="unknown"
diff --git a/gnu/packages/patches/python-3-no-static-lib.patch b/gnu/packages/patches/python-3-no-static-lib.patch
new file mode 100644
index 0000000000..b44dbc976c
--- /dev/null
+++ b/gnu/packages/patches/python-3-no-static-lib.patch
@@ -0,0 +1,75 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: David Malcolm <dmalcolm@redhat.com>
+Date: Mon, 18 Jan 2010 17:59:07 +0000
+Subject: [PATCH] 00111: Don't try to build a libpythonMAJOR.MINOR.a
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Downstream only: not appropriate for upstream.
+
+See https://bugzilla.redhat.com/show_bug.cgi?id=556092
+
+Co-authored-by: David Malcolm <dmalcolm@redhat.com>
+Co-authored-by: Bohuslav Kabrda <bkabrda@redhat.com>
+Co-authored-by: Matej Stuchlik <mstuchli@redhat.com>
+Co-authored-by: Robert Kuska <rkuska@redhat.com>
+Co-authored-by: Charalampos Stratakis <cstratak@redhat.com>
+Co-authored-by: Miro Hrončok <miro@hroncok.cz>
+---
+ Makefile.pre.in | 21 ++-------------------
+ 1 file changed, 2 insertions(+), 19 deletions(-)
+
+diff --git a/Makefile.pre.in b/Makefile.pre.in
+index 0c3981c132..5587422ec7 100644
+--- a/Makefile.pre.in
++++ b/Makefile.pre.in
+@@ -589,7 +589,7 @@ clinic: check-clean-src $(srcdir)/Modules/_blake2/blake2s_impl.c
+ 	$(PYTHON_FOR_REGEN) $(srcdir)/Tools/clinic/clinic.py --make --srcdir $(srcdir)
+ 
+ # Build the interpreter
+-$(BUILDPYTHON):	Programs/python.o $(LIBRARY) $(LDLIBRARY) $(PY3LIBRARY) $(EXPORTSYMS)
++$(BUILDPYTHON):	Programs/python.o $(LDLIBRARY) $(PY3LIBRARY) $(EXPORTSYMS)
+ 	$(LINKCC) $(PY_CORE_LDFLAGS) $(LINKFORSHARED) -o $@ Programs/python.o $(BLDLIBRARY) $(LIBS) $(MODLIBS) $(SYSLIBS)
+ 
+ platform: $(BUILDPYTHON) pybuilddir.txt
+@@ -637,12 +637,6 @@ sharedmods: $(BUILDPYTHON) pybuilddir.txt Modules/_math.o
+ 		_TCLTK_INCLUDES='$(TCLTK_INCLUDES)' _TCLTK_LIBS='$(TCLTK_LIBS)' \
+ 		$(PYTHON_FOR_BUILD) $(srcdir)/setup.py $$quiet build
+ 
+-
+-# Build static library
+-$(LIBRARY): $(LIBRARY_OBJS)
+-	-rm -f $@
+-	$(AR) $(ARFLAGS) $@ $(LIBRARY_OBJS)
+-
+ libpython$(LDVERSION).so: $(LIBRARY_OBJS) $(DTRACE_OBJS)
+ 	if test $(INSTSONAME) != $(LDLIBRARY); then \
+ 		$(BLDSHARED) -Wl,-h$(INSTSONAME) -o $(INSTSONAME) $(LIBRARY_OBJS) $(MODLIBS) $(SHLIBS) $(LIBC) $(LIBM); \
+@@ -724,7 +718,7 @@ Makefile Modules/config.c: Makefile.pre \
+ 	@echo "The Makefile was updated, you may need to re-run make."
+ 
+ 
+-Programs/_testembed: Programs/_testembed.o $(LIBRARY) $(LDLIBRARY) $(PY3LIBRARY) $(EXPORTSYMS)
++Programs/_testembed: Programs/_testembed.o $(LDLIBRARY) $(PY3LIBRARY) $(EXPORTSYMS)
+ 	$(LINKCC) $(PY_CORE_LDFLAGS) $(LINKFORSHARED) -o $@ Programs/_testembed.o $(BLDLIBRARY) $(LIBS) $(MODLIBS) $(SYSLIBS)
+ 
+ ############################################################################
+@@ -1652,17 +1646,6 @@ libainstall:	@DEF_MAKE_RULE@ python-config
+ 		else	true; \
+ 		fi; \
+ 	done
+-	@if test -d $(LIBRARY); then :; else \
+-		if test "$(PYTHONFRAMEWORKDIR)" = no-framework; then \
+-			if test "$(SHLIB_SUFFIX)" = .dll; then \
+-				$(INSTALL_DATA) $(LDLIBRARY) $(DESTDIR)$(LIBPL) ; \
+-			else \
+-				$(INSTALL_DATA) $(LIBRARY) $(DESTDIR)$(LIBPL)/$(LIBRARY) ; \
+-			fi; \
+-		else \
+-			echo Skip install of $(LIBRARY) - use make frameworkinstall; \
+-		fi; \
+-	fi
+ 	$(INSTALL_DATA) Modules/config.c $(DESTDIR)$(LIBPL)/config.c
+ 	$(INSTALL_DATA) Programs/python.o $(DESTDIR)$(LIBPL)/python.o
+ 	$(INSTALL_DATA) $(srcdir)/Modules/config.c.in $(DESTDIR)$(LIBPL)/config.c.in
diff --git a/gnu/packages/patches/python-3.8-CVE-2021-3177.patch b/gnu/packages/patches/python-3.8-CVE-2021-3177.patch
deleted file mode 100644
index 01f6b52865..0000000000
--- a/gnu/packages/patches/python-3.8-CVE-2021-3177.patch
+++ /dev/null
@@ -1,194 +0,0 @@
-Fix CVE-2021-3177 for Python 3.8:
-
-https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3177
-
-Patch copied from upstream source repository:
-
-https://github.com/python/cpython/commit/ece5dfd403dac211f8d3c72701fe7ba7b7aa5b5f
-
-From ece5dfd403dac211f8d3c72701fe7ba7b7aa5b5f Mon Sep 17 00:00:00 2001
-From: "Miss Islington (bot)"
- <31488909+miss-islington@users.noreply.github.com>
-Date: Mon, 18 Jan 2021 13:28:52 -0800
-Subject: [PATCH] closes bpo-42938: Replace snprintf with Python unicode
- formatting in ctypes param reprs. (GH-24248)
-
-(cherry picked from commit 916610ef90a0d0761f08747f7b0905541f0977c7)
-
-Co-authored-by: Benjamin Peterson <benjamin@python.org>
-
-Co-authored-by: Benjamin Peterson <benjamin@python.org>
----
- Lib/ctypes/test/test_parameters.py            | 43 ++++++++++++++++
- .../2021-01-18-09-27-31.bpo-42938.4Zn4Mp.rst  |  2 +
- Modules/_ctypes/callproc.c                    | 51 +++++++------------
- 3 files changed, 64 insertions(+), 32 deletions(-)
- create mode 100644 Misc/NEWS.d/next/Security/2021-01-18-09-27-31.bpo-42938.4Zn4Mp.rst
-
-diff --git a/Lib/ctypes/test/test_parameters.py b/Lib/ctypes/test/test_parameters.py
-index e4c25fd880cef..531894fdec838 100644
---- a/Lib/ctypes/test/test_parameters.py
-+++ b/Lib/ctypes/test/test_parameters.py
-@@ -201,6 +201,49 @@ def __dict__(self):
-         with self.assertRaises(ZeroDivisionError):
-             WorseStruct().__setstate__({}, b'foo')
- 
-+    def test_parameter_repr(self):
-+        from ctypes import (
-+            c_bool,
-+            c_char,
-+            c_wchar,
-+            c_byte,
-+            c_ubyte,
-+            c_short,
-+            c_ushort,
-+            c_int,
-+            c_uint,
-+            c_long,
-+            c_ulong,
-+            c_longlong,
-+            c_ulonglong,
-+            c_float,
-+            c_double,
-+            c_longdouble,
-+            c_char_p,
-+            c_wchar_p,
-+            c_void_p,
-+        )
-+        self.assertRegex(repr(c_bool.from_param(True)), r"^<cparam '\?' at 0x[A-Fa-f0-9]+>$")
-+        self.assertEqual(repr(c_char.from_param(97)), "<cparam 'c' ('a')>")
-+        self.assertRegex(repr(c_wchar.from_param('a')), r"^<cparam 'u' at 0x[A-Fa-f0-9]+>$")
-+        self.assertEqual(repr(c_byte.from_param(98)), "<cparam 'b' (98)>")
-+        self.assertEqual(repr(c_ubyte.from_param(98)), "<cparam 'B' (98)>")
-+        self.assertEqual(repr(c_short.from_param(511)), "<cparam 'h' (511)>")
-+        self.assertEqual(repr(c_ushort.from_param(511)), "<cparam 'H' (511)>")
-+        self.assertRegex(repr(c_int.from_param(20000)), r"^<cparam '[li]' \(20000\)>$")
-+        self.assertRegex(repr(c_uint.from_param(20000)), r"^<cparam '[LI]' \(20000\)>$")
-+        self.assertRegex(repr(c_long.from_param(20000)), r"^<cparam '[li]' \(20000\)>$")
-+        self.assertRegex(repr(c_ulong.from_param(20000)), r"^<cparam '[LI]' \(20000\)>$")
-+        self.assertRegex(repr(c_longlong.from_param(20000)), r"^<cparam '[liq]' \(20000\)>$")
-+        self.assertRegex(repr(c_ulonglong.from_param(20000)), r"^<cparam '[LIQ]' \(20000\)>$")
-+        self.assertEqual(repr(c_float.from_param(1.5)), "<cparam 'f' (1.5)>")
-+        self.assertEqual(repr(c_double.from_param(1.5)), "<cparam 'd' (1.5)>")
-+        self.assertEqual(repr(c_double.from_param(1e300)), "<cparam 'd' (1e+300)>")
-+        self.assertRegex(repr(c_longdouble.from_param(1.5)), r"^<cparam ('d' \(1.5\)|'g' at 0x[A-Fa-f0-9]+)>$")
-+        self.assertRegex(repr(c_char_p.from_param(b'hihi')), "^<cparam 'z' \(0x[A-Fa-f0-9]+\)>$")
-+        self.assertRegex(repr(c_wchar_p.from_param('hihi')), "^<cparam 'Z' \(0x[A-Fa-f0-9]+\)>$")
-+        self.assertRegex(repr(c_void_p.from_param(0x12)), r"^<cparam 'P' \(0x0*12\)>$")
-+
- ################################################################
- 
- if __name__ == '__main__':
-#diff --git a/Misc/NEWS.d/next/Security/2021-01-18-09-27-31.bpo-42938.4Zn4Mp.rst b/Misc/NEWS.d/next/Security/2021-01-18-09-27-31.bpo-42938.4Zn4Mp.rst
-#new file mode 100644
-#index 0000000000000..7df65a156feab
-#--- /dev/null
-#+++ b/Misc/NEWS.d/next/Security/2021-01-18-09-27-31.bpo-42938.4Zn4Mp.rst
-#@@ -0,0 +1,2 @@
-#+Avoid static buffers when computing the repr of :class:`ctypes.c_double` and
-#+:class:`ctypes.c_longdouble` values.
-diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
-index a9b8675cd951b..de75918d49f37 100644
---- a/Modules/_ctypes/callproc.c
-+++ b/Modules/_ctypes/callproc.c
-@@ -484,58 +484,47 @@ is_literal_char(unsigned char c)
- static PyObject *
- PyCArg_repr(PyCArgObject *self)
- {
--    char buffer[256];
-     switch(self->tag) {
-     case 'b':
-     case 'B':
--        sprintf(buffer, "<cparam '%c' (%d)>",
-+        return PyUnicode_FromFormat("<cparam '%c' (%d)>",
-             self->tag, self->value.b);
--        break;
-     case 'h':
-     case 'H':
--        sprintf(buffer, "<cparam '%c' (%d)>",
-+        return PyUnicode_FromFormat("<cparam '%c' (%d)>",
-             self->tag, self->value.h);
--        break;
-     case 'i':
-     case 'I':
--        sprintf(buffer, "<cparam '%c' (%d)>",
-+        return PyUnicode_FromFormat("<cparam '%c' (%d)>",
-             self->tag, self->value.i);
--        break;
-     case 'l':
-     case 'L':
--        sprintf(buffer, "<cparam '%c' (%ld)>",
-+        return PyUnicode_FromFormat("<cparam '%c' (%ld)>",
-             self->tag, self->value.l);
--        break;
- 
-     case 'q':
-     case 'Q':
--        sprintf(buffer,
--#ifdef MS_WIN32
--            "<cparam '%c' (%I64d)>",
--#else
--            "<cparam '%c' (%lld)>",
--#endif
-+        return PyUnicode_FromFormat("<cparam '%c' (%lld)>",
-             self->tag, self->value.q);
--        break;
-     case 'd':
--        sprintf(buffer, "<cparam '%c' (%f)>",
--            self->tag, self->value.d);
--        break;
--    case 'f':
--        sprintf(buffer, "<cparam '%c' (%f)>",
--            self->tag, self->value.f);
--        break;
--
-+    case 'f': {
-+        PyObject *f = PyFloat_FromDouble((self->tag == 'f') ? self->value.f : self->value.d);
-+        if (f == NULL) {
-+            return NULL;
-+        }
-+        PyObject *result = PyUnicode_FromFormat("<cparam '%c' (%R)>", self->tag, f);
-+        Py_DECREF(f);
-+        return result;
-+    }
-     case 'c':
-         if (is_literal_char((unsigned char)self->value.c)) {
--            sprintf(buffer, "<cparam '%c' ('%c')>",
-+            return PyUnicode_FromFormat("<cparam '%c' ('%c')>",
-                 self->tag, self->value.c);
-         }
-         else {
--            sprintf(buffer, "<cparam '%c' ('\\x%02x')>",
-+            return PyUnicode_FromFormat("<cparam '%c' ('\\x%02x')>",
-                 self->tag, (unsigned char)self->value.c);
-         }
--        break;
- 
- /* Hm, are these 'z' and 'Z' codes useful at all?
-    Shouldn't they be replaced by the functionality of c_string
-@@ -544,22 +533,20 @@ PyCArg_repr(PyCArgObject *self)
-     case 'z':
-     case 'Z':
-     case 'P':
--        sprintf(buffer, "<cparam '%c' (%p)>",
-+        return PyUnicode_FromFormat("<cparam '%c' (%p)>",
-             self->tag, self->value.p);
-         break;
- 
-     default:
-         if (is_literal_char((unsigned char)self->tag)) {
--            sprintf(buffer, "<cparam '%c' at %p>",
-+            return PyUnicode_FromFormat("<cparam '%c' at %p>",
-                 (unsigned char)self->tag, (void *)self);
-         }
-         else {
--            sprintf(buffer, "<cparam 0x%02x at %p>",
-+            return PyUnicode_FromFormat("<cparam 0x%02x at %p>",
-                 (unsigned char)self->tag, (void *)self);
-         }
--        break;
-     }
--    return PyUnicode_FromString(buffer);
- }
- 
- static PyMemberDef PyCArgType_members[] = {
diff --git a/gnu/packages/patches/python-3.8-fix-tests.patch b/gnu/packages/patches/python-3.8-fix-tests.patch
deleted file mode 100644
index 4fbdd444c7..0000000000
--- a/gnu/packages/patches/python-3.8-fix-tests.patch
+++ /dev/null
@@ -1,42 +0,0 @@
-diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
-index 1474624..887f8ee 100644
---- a/Lib/test/_test_multiprocessing.py
-+++ b/Lib/test/_test_multiprocessing.py
-@@ -3801,6 +3801,7 @@ class _TestSharedMemory(BaseTestCase):
-         sms.close()
-
-     @unittest.skipIf(os.name != "posix", "not feasible in non-posix platforms")
-+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
-     def test_shared_memory_SharedMemoryServer_ignores_sigint(self):
-         # bpo-36368: protect SharedMemoryManager server process from
-         # KeyboardInterrupt signals.
-diff --git a/Lib/test/test_signal.py b/Lib/test/test_signal.py
-index d41e94b..a1c15e7 100644
---- a/Lib/test/test_signal.py
-+++ b/Lib/test/test_signal.py
-@@ -78,6 +78,7 @@ class PosixTests(unittest.TestCase):
-         self.assertLess(len(s), signal.NSIG)
-
-     @unittest.skipUnless(sys.executable, "sys.executable required.")
-+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
-     def test_keyboard_interrupt_exit_code(self):
-         """KeyboardInterrupt triggers exit via SIGINT."""
-         process = subprocess.run(
-@@ -128,6 +129,7 @@ class WindowsSignalTests(unittest.TestCase):
-             signal.signal(7, handler)
-
-     @unittest.skipUnless(sys.executable, "sys.executable required.")
-+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
-     def test_keyboard_interrupt_exit_code(self):
-         """KeyboardInterrupt triggers an exit using STATUS_CONTROL_C_EXIT."""
-         # We don't test via os.kill(os.getpid(), signal.CTRL_C_EVENT) here
-@@ -1245,6 +1247,7 @@ class StressTest(unittest.TestCase):
-
- class RaiseSignalTest(unittest.TestCase):
-
-+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
-     def test_sigint(self):
-         with self.assertRaises(KeyboardInterrupt):
-             signal.raise_signal(signal.SIGINT)
---
-2.23.0
diff --git a/gnu/packages/patches/python-3.9-fix-tests.patch b/gnu/packages/patches/python-3.9-fix-tests.patch
deleted file mode 100644
index dc6b8c4cc8..0000000000
--- a/gnu/packages/patches/python-3.9-fix-tests.patch
+++ /dev/null
@@ -1,370 +0,0 @@
-See the discussion about the issues fixed here at:
-http://bugs.python.org/issue20868 .
-
-diff --git a/Lib/ctypes/test/test_callbacks.py b/Lib/ctypes/test/test_callbacks.py
---- a/Lib/ctypes/test/test_callbacks.py
-+++ b/Lib/ctypes/test/test_callbacks.py
-@@ -3,6 +3,7 @@ import unittest
- from ctypes import *
- from ctypes.test import need_symbol
- import _ctypes_test
-+import platform
-
- class Callbacks(unittest.TestCase):
-     functype = CFUNCTYPE
-@@ -176,6 +177,8 @@ class SampleCallbacksTestCase(unittest.TestCase):
-
-         self.assertLess(diff, 0.01, "%s not less than 0.01" % diff)
-
-+    @unittest.skipIf(platform.machine() in ['mips64'],
-+                     "This test fails on this platform")
-     def test_issue_8959_a(self):
-         from ctypes.util import find_library
-         libc_path = find_library("c")
-diff --git a/Lib/ctypes/test/test_libc.py b/Lib/ctypes/test/test_libc.py
---- a/Lib/ctypes/test/test_libc.py
-+++ b/Lib/ctypes/test/test_libc.py
-@@ -2,6 +2,7 @@ import unittest
-
- from ctypes import *
- import _ctypes_test
-+import platform
-
- lib = CDLL(_ctypes_test.__file__)
-
-@@ -17,6 +18,8 @@ class LibTest(unittest.TestCase):
-         import math
-         self.assertEqual(lib.my_sqrt(2.0), math.sqrt(2.0))
-
-+    @unittest.skipIf(platform.machine() in ['mips64'],
-+                     "This test fails on this platform")
-     def test_qsort(self):
-         comparefunc = CFUNCTYPE(c_int, POINTER(c_char), POINTER(c_char))
-         lib.my_qsort.argtypes = c_void_p, c_size_t, c_size_t, comparefunc
-diff --git a/Lib/distutils/tests/test_archive_util.py b/Lib/distutils/tests/test_archive_util.py
---- a/Lib/distutils/tests/test_archive_util.py
-+++ b/Lib/distutils/tests/test_archive_util.py
-@@ -333,6 +333,7 @@ class ArchiveUtilTestCase(support.TempdirManager,
-         self.assertEqual(os.path.basename(res), 'archive.tar.xz')
-         self.assertEqual(self._tarinfo(res), self._created_files)
-
-+    @unittest.skipIf(True, "getgrgid(0)[0] raises a KeyError on Guix")
-     def test_make_archive_owner_group(self):
-         # testing make_archive with owner and group, with various combinations
-         # this works even if there's not gid/uid support
-@@ -362,6 +363,7 @@ class ArchiveUtilTestCase(support.TempdirManager,
-
-     @unittest.skipUnless(ZLIB_SUPPORT, "Requires zlib")
-     @unittest.skipUnless(UID_GID_SUPPORT, "Requires grp and pwd support")
-+    @unittest.skipIf(True, "getgrgid(0)[0] raises a KeyError on Guix")
-     def test_tarfile_root_owner(self):
-         tmpdir =  self._create_files()
-         base_name = os.path.join(self.mkdtemp(), 'archive')
-diff --git a/Lib/distutils/tests/test_sdist.py b/Lib/distutils/tests/test_sdist.py
---- a/Lib/distutils/tests/test_sdist.py
-+++ b/Lib/distutils/tests/test_sdist.py
-@@ -443,6 +443,7 @@ class SDistTestCase(BasePyPIRCCommandTestCase):
-                      "The tar command is not found")
-     @unittest.skipIf(find_executable('gzip') is None,
-                      "The gzip command is not found")
-+    @unittest.skipIf(True, "getgrgid(0)[0] raises a KeyError on Guix")
-     def test_make_distribution_owner_group(self):
-         # now building a sdist
-         dist, cmd = self.get_cmd()
-diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
---- a/Lib/test/_test_multiprocessing.py
-+++ b/Lib/test/_test_multiprocessing.py
-@@ -1473,6 +1473,7 @@ class _TestCondition(BaseTestCase):
-         if pid is not None:
-             os.kill(pid, signal.SIGINT)
-
-+    @unittest.skipIf(True, "This fails for unknown reasons on Guix")
-     def test_wait_result(self):
-         if isinstance(self, ProcessesMixin) and sys.platform != 'win32':
-             pid = os.getpid()
-diff --git a/Lib/test/test_asyncio/test_base_events.py b/Lib/test/test_asyncio/test_base_events.py
---- a/Lib/test/test_asyncio/test_base_events.py
-+++ b/Lib/test/test_asyncio/test_base_events.py
-@@ -1323,6 +1323,8 @@ class BaseEventLoopWithSelectorTests(test_utils.TestCase):
-         self._test_create_connection_ip_addr(m_socket, False)
-
-     @patch_socket
-+    @unittest.skipUnless(support.is_resource_enabled('network'),
-+                         'network is not enabled')
-     def test_create_connection_service_name(self, m_socket):
-         m_socket.getaddrinfo = socket.getaddrinfo
-         sock = m_socket.socket.return_value
-diff --git a/Lib/test/test_generators.py b/Lib/test/test_generators.py
---- a/Lib/test/test_generators.py
-+++ b/Lib/test/test_generators.py
-@@ -34,6 +34,7 @@ class SignalAndYieldFromTest(unittest.TestCase):
-         else:
-             return "FAILED"
-
-+    @unittest.skipIf(True, 'Keyboard interrupts do not work in the Guix build environment')
-     def test_raise_and_yield_from(self):
-         gen = self.generator1()
-         gen.send(None)
-diff --git a/Lib/test/test_pathlib.py b/Lib/test/test_pathlib.py
---- a/Lib/test/test_pathlib.py
-+++ b/Lib/test/test_pathlib.py
-@@ -2134,8 +2134,7 @@ class PosixPathTest(_BasePathTest, unittest.TestCase):
-         self.assertEqual(given, expect)
-         self.assertEqual(set(p.rglob("FILEd*")), set())
-
--    @unittest.skipUnless(hasattr(pwd, 'getpwall'),
--                         'pwd module does not expose getpwall()')
-+    @unittest.skipIf(True, "Guix builder home is '/' which causes trouble for these tests")
-     def test_expanduser(self):
-         P = self.cls
-         support.import_module('pwd')
-diff --git a/Lib/test/test_pdb.py b/Lib/test/test_pdb.py
---- a/Lib/test/test_pdb.py
-+++ b/Lib/test/test_pdb.py
-@@ -1150,11 +1150,11 @@ def test_pdb_issue_20766():
-     > <doctest test.test_pdb.test_pdb_issue_20766[0]>(6)test_function()
-     -> print('pdb %d: %s' % (i, sess._previous_sigint_handler))
-     (Pdb) continue
--    pdb 1: <built-in function default_int_handler>
-+    pdb 1: Handlers.SIG_IGN
-     > <doctest test.test_pdb.test_pdb_issue_20766[0]>(5)test_function()
-     -> sess.set_trace(sys._getframe())
-     (Pdb) continue
--    pdb 2: <built-in function default_int_handler>
-+    pdb 2: Handlers.SIG_IGN
-     """
-
-
-diff --git a/Lib/test/test_regrtest.py b/Lib/test/test_regrtest.py
---- a/Lib/test/test_regrtest.py
-+++ b/Lib/test/test_regrtest.py
-@@ -762,6 +762,7 @@ class ArgsTestCase(BaseTestCase):
-         output = self.run_tests('--fromfile', filename)
-         self.check_executed_tests(output, tests)
-
-+    @unittest.skipIf(True, 'Keyboard interrupts do not work in the Guix build environment.')
-     def test_interrupted(self):
-         code = TEST_INTERRUPTED
-         test = self.create_test('sigint', code=code)
-@@ -779,6 +780,7 @@ class ArgsTestCase(BaseTestCase):
-                  % (self.TESTNAME_REGEX, len(tests)))
-         self.check_line(output, regex)
-
-+    @unittest.skipIf(True, 'Keyboard interrupts do not work in the Guix build environment.')
-     def test_slowest_interrupted(self):
-         # Issue #25373: test --slowest with an interrupted test
-         code = TEST_INTERRUPTED
-diff --git a/Lib/test/test_resource.py b/Lib/test/test_resource.py
---- a/Lib/test/test_resource.py
-+++ b/Lib/test/test_resource.py
-@@ -145,6 +145,7 @@ class ResourceTest(unittest.TestCase):
-
-     @unittest.skipUnless(hasattr(resource, 'prlimit'), 'no prlimit')
-     @support.requires_linux_version(2, 6, 36)
-+    @unittest.skipIf(True, "Bug: the PermissionError is not raised")
-     def test_prlimit(self):
-         self.assertRaises(TypeError, resource.prlimit)
-         self.assertRaises(ProcessLookupError, resource.prlimit,
-diff --git a/Lib/test/test_shutil.py b/Lib/test/test_shutil.py
---- a/Lib/test/test_shutil.py
-+++ b/Lib/test/test_shutil.py
-@@ -1428,6 +1428,7 @@ class TestArchives(BaseTest, unittest.TestCase):
-         self.assertRaises(ValueError, make_archive, base_name, 'xxx')
-
-     @support.requires_zlib()
-+    @unittest.skipIf(True, "getgrgid(0)[0] raises a KeyError on Guix")
-     def test_make_archive_owner_group(self):
-         # testing make_archive with owner and group, with various combinations
-         # this works even if there's not gid/uid support
-@@ -1456,6 +1457,7 @@ class TestArchives(BaseTest, unittest.TestCase):
-
-
-     @support.requires_zlib()
-+    @unittest.skipIf(True, "getgrgid(0)[0] raises a KeyError on Guix")
-     @unittest.skipUnless(UID_GID_SUPPORT, "Requires grp and pwd support")
-     def test_tarfile_root_owner(self):
-         root_dir, base_dir = self._create_files()
-diff --git a/Lib/test/test_unicodedata.py b/Lib/test/test_unicodedata.py
---- a/Lib/test/test_unicodedata.py
-+++ b/Lib/test/test_unicodedata.py
-@@ -320,6 +320,7 @@ class NormalizationTest(unittest.TestCase):
-         data = [int(x, 16) for x in data.split(" ")]
-         return "".join([chr(x) for x in data])
-
-+    @unittest.skipIf(True, 'Network is not available in the Guix build environment')
-     def test_normalization(self):
-         TESTDATAFILE = "NormalizationTest.txt"
-         TESTDATAURL = f"http://www.pythontest.net/unicode/{unicodedata.unidata_version}/{TESTDATAFILE}"
-diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
---- a/Lib/test/test_socket.py
-+++ b/Lib/test/test_socket.py
-@@ -875,6 +875,8 @@ class GeneralModuleTests(unittest.TestCase):
-         if not fqhn in all_host_names:
-             self.fail("Error testing host resolution mechanisms. (fqdn: %s, all: %s)" % (fqhn, repr(all_host_names)))
-
-+    @unittest.skipUnless(support.is_resource_enabled('network'),
-+                         'network is not enabled')
-     def test_host_resolution(self):
-         for addr in [support.HOSTv4, '10.0.0.1', '255.255.255.255']:
-             self.assertEqual(socket.gethostbyname(addr), addr)
-@@ -1004,6 +1006,8 @@ class GeneralModuleTests(unittest.TestCase):
-             self.assertWarns(DeprecationWarning, socket.ntohs, k)
-             self.assertWarns(DeprecationWarning, socket.htons, k)
-
-+    @unittest.skipUnless(os.path.exists("/etc/services"),
-+                         "getservbyname uses /etc/services, which is not in the chroot")
-     def testGetServBy(self):
-         eq = self.assertEqual
-         # Find one service that exists, then check all the related interfaces.
-@@ -1358,6 +1362,8 @@ class GeneralModuleTests(unittest.TestCase):
-             raise
-         self.assertRaises(TypeError, s.ioctl, socket.SIO_LOOPBACK_FAST_PATH, None)
-
-+    @unittest.skipUnless(os.path.exists("/etc/gai.conf"),
-+                         "getaddrinfo() will fail")
-     def testGetaddrinfo(self):
-         try:
-             socket.getaddrinfo('localhost', 80)
-@@ -1440,6 +1446,8 @@ class GeneralModuleTests(unittest.TestCase):
-         # only IP addresses are allowed
-         self.assertRaises(OSError, socket.getnameinfo, ('mail.python.org',0), 0)
-
-+    @unittest.skipUnless(os.path.exists("/etc/gai.conf"),
-+                         "getaddrinfo() will fail")
-     @unittest.skipUnless(support.is_resource_enabled('network'),
-                          'network is not enabled')
-     def test_idna(self):
-diff --git a/Lib/test/test_spwd.py b/Lib/test/test_spwd.py
---- a/Lib/test/test_spwd.py
-+++ b/Lib/test/test_spwd.py
-@@ -5,8 +5,7 @@ from test import support
- spwd = support.import_module('spwd')
-
-
--@unittest.skipUnless(hasattr(os, 'geteuid') and os.geteuid() == 0,
--                     'root privileges required')
-+@unittest.skipUnless(os.path.exists("/etc/shadow"), 'spwd tests require /etc/shadow')
- class TestSpwdRoot(unittest.TestCase):
-
-     def test_getspall(self):
-@@ -56,8 +55,7 @@ class TestSpwdRoot(unittest.TestCase):
-             self.assertRaises(TypeError, spwd.getspnam, bytes_name)
-
-
--@unittest.skipUnless(hasattr(os, 'geteuid') and os.geteuid() != 0,
--                     'non-root user required')
-+@unittest.skipUnless(os.path.exists("/etc/shadow"), 'spwd tests require /etc/shadow')
- class TestSpwdNonRoot(unittest.TestCase):
-
-     def test_getspnam_exception(self):
-diff --git a/Lib/test/test_tarfile.py b/Lib/test/test_tarfile.py
---- a/Lib/test/test_tarfile.py
-+++ b/Lib/test/test_tarfile.py
-@@ -2509,9 +2509,12 @@ def root_is_uid_gid_0():
-         import pwd, grp
-     except ImportError:
-         return False
--    if pwd.getpwuid(0)[0] != 'root':
--        return False
--    if grp.getgrgid(0)[0] != 'root':
-+    try:
-+        if pwd.getpwuid(0)[0] != 'root':
-+            return False
-+        if grp.getgrgid(0)[0] != 'root':
-+            return False
-+    except KeyError:
-         return False
-     return True
-
-diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
---- a/Lib/test/test_threading.py
-+++ b/Lib/test/test_threading.py
-@@ -1249,6 +1249,7 @@ class MiscTestCase(unittest.TestCase):
-
-
- class InterruptMainTests(unittest.TestCase):
-+    @unittest.skipIf(True, 'Keyboard interrupts do not work in the Guix build container.')
-     def test_interrupt_main_subthread(self):
-         # Calling start_new_thread with a function that executes interrupt_main
-         # should raise KeyboardInterrupt upon completion.
-@@ -1260,6 +1261,8 @@ class InterruptMainTests(unittest.TestCase):
-             t.join()
-         t.join()
-
-+
-+    @unittest.skipIf(True, 'Keyboard interrupts do not work in the Guix build container.')
-     def test_interrupt_main_mainthread(self):
-         # Make sure that if interrupt_main is called in main thread that
-         # KeyboardInterrupt is raised instantly.
-diff --git a/Tools/scripts/run_tests.py b/Tools/scripts/run_tests.py
---- a/Tools/scripts/run_tests.py
-+++ b/Tools/scripts/run_tests.py
-@@ -39,7 +39,7 @@ def main(regrtest_args):
-     if not any(is_multiprocess_flag(arg) for arg in regrtest_args):
-         args.extend(['-j', '0'])  # Use all CPU cores
-     if not any(is_resource_use_flag(arg) for arg in regrtest_args):
--        args.extend(['-u', 'all,-largefile,-audio,-gui'])
-+        args.extend(['-u', 'all,-largefile,-audio,-gui,-network'])
-     args.extend(regrtest_args)
-     print(' '.join(args))
-     if sys.platform == 'win32':
-diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
-index 1474624..887f8ee 100644
---- a/Lib/test/_test_multiprocessing.py
-+++ b/Lib/test/_test_multiprocessing.py
-@@ -3801,6 +3801,7 @@ class _TestSharedMemory(BaseTestCase):
-         sms.close()
-
-     @unittest.skipIf(os.name != "posix", "not feasible in non-posix platforms")
-+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
-     def test_shared_memory_SharedMemoryServer_ignores_sigint(self):
-         # bpo-36368: protect SharedMemoryManager server process from
-         # KeyboardInterrupt signals.
-diff --git a/Lib/test/test_signal.py b/Lib/test/test_signal.py
-index d41e94b..a1c15e7 100644
---- a/Lib/test/test_signal.py
-+++ b/Lib/test/test_signal.py
-@@ -78,6 +78,7 @@ class PosixTests(unittest.TestCase):
-         self.assertLess(len(s), signal.NSIG)
-
-     @unittest.skipUnless(sys.executable, "sys.executable required.")
-+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
-     def test_keyboard_interrupt_exit_code(self):
-         """KeyboardInterrupt triggers exit via SIGINT."""
-         process = subprocess.run(
-@@ -128,6 +129,7 @@ class WindowsSignalTests(unittest.TestCase):
-             signal.signal(7, handler)
-
-     @unittest.skipUnless(sys.executable, "sys.executable required.")
-+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
-     def test_keyboard_interrupt_exit_code(self):
-         """KeyboardInterrupt triggers an exit using STATUS_CONTROL_C_EXIT."""
-         # We don't test via os.kill(os.getpid(), signal.CTRL_C_EVENT) here
-@@ -1245,6 +1247,7 @@ class StressTest(unittest.TestCase):
-
- class RaiseSignalTest(unittest.TestCase):
-
-+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
-     def test_sigint(self):
-         with self.assertRaises(KeyboardInterrupt):
-             signal.raise_signal(signal.SIGINT)
-@@ -1279,6 +1279,7 @@ class PidfdSignalTest(unittest.TestCase):
-         hasattr(signal, "pidfd_send_signal"),
-         "pidfd support not built in",
-     )
-+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
-     def test_pidfd_send_signal(self):
-         with self.assertRaises(OSError) as cm:
-             signal.pidfd_send_signal(0, signal.SIGINT)
-diff --git a/Lib/ctypes/test/test_find.py b/Lib/ctypes/test/test_find.py
-index 92ac184..49eec2c 100644
---- a/Lib/ctypes/test/test_find.py
-+++ b/Lib/ctypes/test/test_find.py
-@@ -116,6 +116,7 @@ class FindLibraryLinux(unittest.TestCase):
-         with unittest.mock.patch("ctypes.util._findSoname_ldconfig", lambda *args: None):
-             self.assertNotEqual(find_library('c'), None)
-
-+    @unittest.skipIf(True, "This fails for unknown reasons on Guix")
-     def test_find_library_with_ld(self):
-         with unittest.mock.patch("ctypes.util._findSoname_ldconfig", lambda *args: None), \
-              unittest.mock.patch("ctypes.util._findLib_gcc", lambda *args: None):
diff --git a/gnu/packages/patches/python-babel-fix-parse-future-test.patch b/gnu/packages/patches/python-babel-fix-parse-future-test.patch
new file mode 100644
index 0000000000..8a90166ec5
--- /dev/null
+++ b/gnu/packages/patches/python-babel-fix-parse-future-test.patch
@@ -0,0 +1,68 @@
+From 7bdaa28a55e8d8228d5434effa4b1473ab7b3669 Mon Sep 17 00:00:00 2001
+From: Felix Schwarz <felix.schwarz@oss.schwarz.eu>
+Date: Tue, 5 May 2020 08:05:56 +0000
+Subject: [PATCH] fix tests when using Python 3.9a6
+
+In Python 3.9a6 integer values for future flags were changed to prevent
+collision with compiler flags. We need to retrieve these at runtime so
+the test suite works with Python <= 3.8 as well as Python 3.9.
+---
+ tests/test_util.py | 17 ++++++++++++-----
+ 1 file changed, 12 insertions(+), 5 deletions(-)
+
+diff --git a/tests/test_util.py b/tests/test_util.py
+index a6a4450c..b9343aaa 100644
+--- a/tests/test_util.py
++++ b/tests/test_util.py
+@@ -11,6 +11,7 @@
+ # individuals. For the exact contribution history, see the revision
+ # history and logs, available at http://babel.edgewall.org/log/.
+ 
++import __future__
+ import unittest
+ 
+ import pytest
+@@ -20,6 +21,12 @@
+ from babel.util import parse_future_flags
+ 
+ 
++class _FF:
++    division         = __future__.division.compiler_flag
++    print_function   = __future__.print_function.compiler_flag
++    with_statement   = __future__.with_statement.compiler_flag
++    unicode_literals = __future__.unicode_literals.compiler_flag
++
+ def test_distinct():
+     assert list(util.distinct([1, 2, 1, 3, 4, 4])) == [1, 2, 3, 4]
+     assert list(util.distinct('foobar')) == ['f', 'o', 'b', 'a', 'r']
+@@ -70,25 +77,25 @@ def test_parse_encoding_non_ascii():
+ from __future__ import print_function,
+     division, with_statement,
+     unicode_literals
+-''', 0x10000 | 0x2000 | 0x8000 | 0x20000),
++''', _FF.print_function | _FF.division | _FF.with_statement | _FF.unicode_literals),
+     ('''
+ from __future__ import print_function, division
+ print('hello')
+-''', 0x10000 | 0x2000),
++''', _FF.print_function | _FF.division),
+     ('''
+ from __future__ import print_function, division, unknown,,,,,
+ print 'hello'
+-''', 0x10000 | 0x2000),
++''', _FF.print_function | _FF.division),
+     ('''
+ from __future__ import (
+     print_function,
+     division)
+-''', 0x10000 | 0x2000),
++''', _FF.print_function | _FF.division),
+     ('''
+ from __future__ import \\
+     print_function, \\
+     division
+-''', 0x10000 | 0x2000),
++''', _FF.print_function | _FF.division),
+ ])
+ def test_parse_future(source, result):
+     fp = BytesIO(source.encode('latin-1'))
diff --git a/gnu/packages/patches/python-typing-inspect-fix.patch b/gnu/packages/patches/python-typing-inspect-fix.patch
new file mode 100644
index 0000000000..e6e28981b7
--- /dev/null
+++ b/gnu/packages/patches/python-typing-inspect-fix.patch
@@ -0,0 +1,38 @@
+From 16919e21936179e53df2f376c8b59b5fc44bd2dd Mon Sep 17 00:00:00 2001
+From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
+Date: Fri, 15 Jan 2021 09:22:52 -0500
+Subject: [PATCH] Fix for Python 3.9+.
+
+Fixes <https://github.com/ilevkivskyi/typing_inspect/issues/60>.
+
+Based on an idea in
+https://github.com/ilevkivskyi/typing_inspect/issues/60#issuecomment-683187584.
+---
+ typing_inspect.py | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/typing_inspect.py b/typing_inspect.py
+index 1ca68ed..31d05ee 100644
+--- a/typing_inspect.py
++++ b/typing_inspect.py
+@@ -21,7 +21,7 @@ LEGACY_TYPING = False
+ 
+ if NEW_TYPING:
+     from typing import (
+-        Generic, Callable, Union, TypeVar, ClassVar, Tuple, _GenericAlias, ForwardRef
++        Generic, Callable, Union, TypeVar, ClassVar, Tuple, _GenericAlias, _SpecialGenericAlias, ForwardRef
+     )
+     from typing_extensions import Literal
+ else:
+@@ -75,7 +75,7 @@ def is_generic_type(tp):
+     """
+     if NEW_TYPING:
+         return (isinstance(tp, type) and issubclass(tp, Generic) or
+-                isinstance(tp, _GenericAlias) and
++                (isinstance(tp, _GenericAlias) or isinstance(tp, _SpecialGenericAlias)) and
+                 tp.__origin__ not in (Union, tuple, ClassVar, collections.abc.Callable))
+     return (isinstance(tp, GenericMeta) and not
+             isinstance(tp, (CallableMeta, TupleMeta)))
+-- 
+2.29.2
+
diff --git a/gnu/packages/patches/rust-1.19-mrustc.patch b/gnu/packages/patches/rust-1.19-mrustc.patch
deleted file mode 100644
index 261162172e..0000000000
--- a/gnu/packages/patches/rust-1.19-mrustc.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-See https://github.com/thepowersgang/mrustc/archive/v0.8.0.tar.gz
-
---- rustc-1.19.0-src-orig/src/libcore/intrinsics.rs
-+++ rustc-1.19.0-src/src/libcore/intrinsics.rs
-@@ -678,5 +678,9 @@
-     pub fn min_align_of_val<T: ?Sized>(_: &T) -> usize;
- 
-+    /// Obtain the length of a slice pointer
-+    #[cfg(rust_compiler="mrustc")]
-+    pub fn mrustc_slice_len<T>(pointer: *const [T]) -> usize;
-+
-     /// Gets a static string slice containing the name of a type.
-     pub fn type_name<T: ?Sized>() -> &'static str;
-
---- rustc-1.19.0-src-orig/src/libcore/slice/mod.rs
-+++ rustc-1.19.0-src/src/libcore/slice/mod.rs
-@@ -413,6 +413,8 @@
-     #[inline]
-     fn len(&self) -> usize {
--        unsafe {
--            mem::transmute::<&[T], Repr<T>>(self).len
--        }
-+        #[cfg(not(rust_compiler="mrustc"))]
-+        let rv = unsafe { mem::transmute::<&[T], Repr<T>>(self).len };
-+        #[cfg(rust_compiler="mrustc")]
-+        let rv = unsafe { ::intrinsics::mrustc_slice_len(self) };
-+        rv
-     }
diff --git a/gnu/packages/patches/rust-1.25-accept-more-detailed-gdb-lines.patch b/gnu/packages/patches/rust-1.25-accept-more-detailed-gdb-lines.patch
deleted file mode 100644
index a2bad55117..0000000000
--- a/gnu/packages/patches/rust-1.25-accept-more-detailed-gdb-lines.patch
+++ /dev/null
@@ -1,111 +0,0 @@
-GDB responds with some overly detailed lines - which makes the tests fail.
-Patch rust to accept those instead.
-See <https://github.com/rust-lang/rust/issues/54178>.
-diff -ur orig/rustc-1.25.0-src/src/test/debuginfo/generic-enum-with-different-disr-sizes.rs rustc-1.25.0-src/src/test/debuginfo/generic-enum-with-different-disr-sizes.rs
---- orig/rustc-1.25.0-src/src/test/debuginfo/generic-enum-with-different-disr-sizes.rs	2018-09-13 10:24:33.775565159 +0200
-+++ rustc-1.25.0-src/src/test/debuginfo/generic-enum-with-different-disr-sizes.rs	2018-09-13 10:25:56.322513658 +0200
-@@ -19,36 +19,36 @@
- 
- // gdb-command:print eight_bytes1
- // gdbg-check:$1 = {{RUST$ENUM$DISR = Variant1, __0 = 100}, {RUST$ENUM$DISR = Variant1, __0 = 100}}
--// gdbr-check:$1 = generic_enum_with_different_disr_sizes::Enum::Variant1(100)
-+// gdbr-check:$1 = generic_enum_with_different_disr_sizes::Enum<f64>::Variant1(100)
- 
- // gdb-command:print four_bytes1
- // gdbg-check:$2 = {{RUST$ENUM$DISR = Variant1, __0 = 101}, {RUST$ENUM$DISR = Variant1, __0 = 101}}
--// gdbr-check:$2 = generic_enum_with_different_disr_sizes::Enum::Variant1(101)
-+// gdbr-check:$2 = generic_enum_with_different_disr_sizes::Enum<i32>::Variant1(101)
- 
- // gdb-command:print two_bytes1
- // gdbg-check:$3 = {{RUST$ENUM$DISR = Variant1, __0 = 102}, {RUST$ENUM$DISR = Variant1, __0 = 102}}
--// gdbr-check:$3 = generic_enum_with_different_disr_sizes::Enum::Variant1(102)
-+// gdbr-check:$3 = generic_enum_with_different_disr_sizes::Enum<i16>::Variant1(102)
- 
- // gdb-command:print one_byte1
- // gdbg-check:$4 = {{RUST$ENUM$DISR = Variant1, __0 = 65 'A'}, {RUST$ENUM$DISR = Variant1, __0 = 65 'A'}}
--// gdbr-check:$4 = generic_enum_with_different_disr_sizes::Enum::Variant1(65)
-+// gdbr-check:$4 = generic_enum_with_different_disr_sizes::Enum<u8>::Variant1(65)
- 
- 
- // gdb-command:print eight_bytes2
- // gdbg-check:$5 = {{RUST$ENUM$DISR = Variant2, __0 = 100}, {RUST$ENUM$DISR = Variant2, __0 = 100}}
--// gdbr-check:$5 = generic_enum_with_different_disr_sizes::Enum::Variant2(100)
-+// gdbr-check:$5 = generic_enum_with_different_disr_sizes::Enum<f64>::Variant2(100)
- 
- // gdb-command:print four_bytes2
- // gdbg-check:$6 = {{RUST$ENUM$DISR = Variant2, __0 = 101}, {RUST$ENUM$DISR = Variant2, __0 = 101}}
--// gdbr-check:$6 = generic_enum_with_different_disr_sizes::Enum::Variant2(101)
-+// gdbr-check:$6 = generic_enum_with_different_disr_sizes::Enum<i32>::Variant2(101)
- 
- // gdb-command:print two_bytes2
- // gdbg-check:$7 = {{RUST$ENUM$DISR = Variant2, __0 = 102}, {RUST$ENUM$DISR = Variant2, __0 = 102}}
--// gdbr-check:$7 = generic_enum_with_different_disr_sizes::Enum::Variant2(102)
-+// gdbr-check:$7 = generic_enum_with_different_disr_sizes::Enum<i16>::Variant2(102)
- 
- // gdb-command:print one_byte2
- // gdbg-check:$8 = {{RUST$ENUM$DISR = Variant2, __0 = 65 'A'}, {RUST$ENUM$DISR = Variant2, __0 = 65 'A'}}
--// gdbr-check:$8 = generic_enum_with_different_disr_sizes::Enum::Variant2(65)
-+// gdbr-check:$8 = generic_enum_with_different_disr_sizes::Enum<u8>::Variant2(65)
- 
- // gdb-command:continue
- 
-diff -ur orig/rustc-1.25.0-src/src/test/debuginfo/generic-struct-style-enum.rs rustc-1.25.0-src/src/test/debuginfo/generic-struct-style-enum.rs
---- orig/rustc-1.25.0-src/src/test/debuginfo/generic-struct-style-enum.rs	2018-09-13 10:24:33.775565159 +0200
-+++ rustc-1.25.0-src/src/test/debuginfo/generic-struct-style-enum.rs	2018-09-13 10:27:43.353108111 +0200
-@@ -19,15 +19,15 @@
- 
- // gdb-command:print case1
- // gdbg-check:$1 = {{RUST$ENUM$DISR = Case1, a = 0, b = 31868, c = 31868, d = 31868, e = 31868}, {RUST$ENUM$DISR = Case1, [...]}, {RUST$ENUM$DISR = Case1, [...]}}
--// gdbr-check:$1 = generic_struct_style_enum::Regular::Case1{a: 0, b: 31868, c: 31868, d: 31868, e: 31868}
-+// gdbr-check:$1 = generic_struct_style_enum::Regular<u16, u32, i64>::Case1{a: 0, b: 31868, c: 31868, d: 31868, e: 31868}
- 
- // gdb-command:print case2
- // gdbg-check:$2 = {{RUST$ENUM$DISR = Case2, [...]}, {RUST$ENUM$DISR = Case2, a = 0, b = 286331153, c = 286331153}, {RUST$ENUM$DISR = Case2, [...]}}
--// gdbr-check:$2 = generic_struct_style_enum::Regular::Case2{a: 0, b: 286331153, c: 286331153}
-+// gdbr-check:$2 = generic_struct_style_enum::Regular<i16, u32, i64>::Case2{a: 0, b: 286331153, c: 286331153}
- 
- // gdb-command:print case3
- // gdbg-check:$3 = {{RUST$ENUM$DISR = Case3, [...]}, {RUST$ENUM$DISR = Case3, [...]}, {RUST$ENUM$DISR = Case3, a = 0, b = 6438275382588823897}}
--// gdbr-check:$3 = generic_struct_style_enum::Regular::Case3{a: 0, b: 6438275382588823897}
-+// gdbr-check:$3 = generic_struct_style_enum::Regular<u16, i32, u64>::Case3{a: 0, b: 6438275382588823897}
- 
- // gdb-command:print univariant
- // gdbg-check:$4 = {{a = -1}}
-diff -ur orig/rustc-1.25.0-src/src/test/debuginfo/generic-tuple-style-enum.rs rustc-1.25.0-src/src/test/debuginfo/generic-tuple-style-enum.rs
---- orig/rustc-1.25.0-src/src/test/debuginfo/generic-tuple-style-enum.rs	2018-09-13 10:24:33.775565159 +0200
-+++ rustc-1.25.0-src/src/test/debuginfo/generic-tuple-style-enum.rs	2018-09-13 10:28:26.328546298 +0200
-@@ -21,15 +21,15 @@
- 
- // gdb-command:print case1
- // gdbg-check:$1 = {{RUST$ENUM$DISR = Case1, __0 = 0, __1 = 31868, __2 = 31868, __3 = 31868, __4 = 31868}, {RUST$ENUM$DISR = Case1, [...]}, {RUST$ENUM$DISR = Case1, [...]}}
--// gdbr-check:$1 = generic_tuple_style_enum::Regular::Case1(0, 31868, 31868, 31868, 31868)
-+// gdbr-check:$1 = generic_tuple_style_enum::Regular<u16, u32, u64>::Case1(0, 31868, 31868, 31868, 31868)
- 
- // gdb-command:print case2
- // gdbg-check:$2 = {{RUST$ENUM$DISR = Case2, [...]}, {RUST$ENUM$DISR = Case2, __0 = 0, __1 = 286331153, __2 = 286331153}, {RUST$ENUM$DISR = Case2, [...]}}
--// gdbr-check:$2 = generic_tuple_style_enum::Regular::Case2(0, 286331153, 286331153)
-+// gdbr-check:$2 = generic_tuple_style_enum::Regular<i16, i32, i64>::Case2(0, 286331153, 286331153)
- 
- // gdb-command:print case3
- // gdbg-check:$3 = {{RUST$ENUM$DISR = Case3, [...]}, {RUST$ENUM$DISR = Case3, [...]}, {RUST$ENUM$DISR = Case3, __0 = 0, __1 = 6438275382588823897}}
--// gdbr-check:$3 = generic_tuple_style_enum::Regular::Case3(0, 6438275382588823897)
-+// gdbr-check:$3 = generic_tuple_style_enum::Regular<i16, i32, i64>::Case3(0, 6438275382588823897)
- 
- // gdb-command:print univariant
- // gdbg-check:$4 = {{__0 = -1}}
---- orig/rustc-1.25.0-src/src/test/debuginfo/nil-enum.rs	2018-09-13 10:24:33.783565071 +0200
-+++ rustc-1.25.0-src/src/test/debuginfo/nil-enum.rs	2018-10-26 18:19:20.404564587 +0200
-@@ -17,11 +17,11 @@
- 
- // gdb-command:print first
- // gdbg-check:$1 = {<No data fields>}
--// gdbr-check:$1 = <error reading variable>
-+// gdbr-check:$1 = nil_enum::ANilEnum
- 
- // gdb-command:print second
- // gdbg-check:$2 = {<No data fields>}
--// gdbr-check:$2 = <error reading variable>
-+// gdbr-check:$2 = nil_enum::AnotherNilEnum
- 
- #![allow(unused_variables)]
- #![feature(omit_gdb_pretty_printer_section)]
diff --git a/gnu/packages/patches/rust-1.30-gdb-llvm.patch b/gnu/packages/patches/rust-1.30-gdb-llvm.patch
deleted file mode 100644
index e8f0acc8b4..0000000000
--- a/gnu/packages/patches/rust-1.30-gdb-llvm.patch
+++ /dev/null
@@ -1,89 +0,0 @@
-Tweak some gdb tests which were broken during LLVM upgrades.
-This has been subsequently fixed upstream in later rustc versions,
-but still needed to bootstrap some earlier versions of the compiler.
-
-diff -r -u rustc-1.30.1-src-orig/src/test/debuginfo/borrowed-c-style-enum.rs rustc-1.30.1-src/src/test/debuginfo/borrowed-c-style-enum.rs
---- rustc-1.30.1-src-orig/src/test/debuginfo/borrowed-c-style-enum.rs	2019-02-04 12:49:34.055483896 -0800
-+++ rustc-1.30.1-src/src/test/debuginfo/borrowed-c-style-enum.rs	2019-02-04 13:01:10.915950356 -0800
-@@ -18,15 +18,15 @@
- 
- // gdb-command:print *the_a_ref
- // gdbg-check:$1 = TheA
--// gdbr-check:$1 = borrowed_c_style_enum::ABC::TheA
-+// gdbr-check:$1 = borrowed_c_style_enum::TheA
- 
- // gdb-command:print *the_b_ref
- // gdbg-check:$2 = TheB
--// gdbr-check:$2 = borrowed_c_style_enum::ABC::TheB
-+// gdbr-check:$2 = borrowed_c_style_enum::TheB
- 
- // gdb-command:print *the_c_ref
- // gdbg-check:$3 = TheC
--// gdbr-check:$3 = borrowed_c_style_enum::ABC::TheC
-+// gdbr-check:$3 = borrowed_c_style_enum::TheC
- 
- 
- // === LLDB TESTS ==================================================================================
-diff -r -u rustc-1.30.1-src-orig/src/test/debuginfo/c-style-enum-in-composite.rs rustc-1.30.1-src/src/test/debuginfo/c-style-enum-in-composite.rs
---- rustc-1.30.1-src-orig/src/test/debuginfo/c-style-enum-in-composite.rs	2019-02-04 12:49:34.051483727 -0800
-+++ rustc-1.30.1-src/src/test/debuginfo/c-style-enum-in-composite.rs	2019-02-04 13:02:00.981997525 -0800
-@@ -19,31 +19,31 @@
- 
- // gdb-command:print tuple_interior_padding
- // gdbg-check:$1 = {__0 = 0, __1 = OneHundred}
--// gdbr-check:$1 = (0, c_style_enum_in_composite::AnEnum::OneHundred)
-+// gdbr-check:$1 = (0, c_style_enum_in_composite::OneHundred)
- 
- // gdb-command:print tuple_padding_at_end
- // gdbg-check:$2 = {__0 = {__0 = 1, __1 = OneThousand}, __1 = 2}
--// gdbr-check:$2 = ((1, c_style_enum_in_composite::AnEnum::OneThousand), 2)
-+// gdbr-check:$2 = ((1, c_style_enum_in_composite::OneThousand), 2)
- 
- // gdb-command:print tuple_different_enums
- // gdbg-check:$3 = {__0 = OneThousand, __1 = MountainView, __2 = OneMillion, __3 = Vienna}
--// gdbr-check:$3 = (c_style_enum_in_composite::AnEnum::OneThousand, c_style_enum_in_composite::AnotherEnum::MountainView, c_style_enum_in_composite::AnEnum::OneMillion, c_style_enum_in_composite::AnotherEnum::Vienna)
-+// gdbr-check:$3 = (c_style_enum_in_composite::OneThousand, c_style_enum_in_composite::MountainView, c_style_enum_in_composite::OneMillion, c_style_enum_in_composite::Vienna)
- 
- // gdb-command:print padded_struct
- // gdbg-check:$4 = {a = 3, b = OneMillion, c = 4, d = Toronto, e = 5}
--// gdbr-check:$4 = c_style_enum_in_composite::PaddedStruct {a: 3, b: c_style_enum_in_composite::AnEnum::OneMillion, c: 4, d: c_style_enum_in_composite::AnotherEnum::Toronto, e: 5}
-+// gdbr-check:$4 = c_style_enum_in_composite::PaddedStruct {a: 3, b: c_style_enum_in_composite::OneMillion, c: 4, d: c_style_enum_in_composite::Toronto, e: 5}
- 
- // gdb-command:print packed_struct
- // gdbg-check:$5 = {a = 6, b = OneHundred, c = 7, d = Vienna, e = 8}
--// gdbr-check:$5 = c_style_enum_in_composite::PackedStruct {a: 6, b: c_style_enum_in_composite::AnEnum::OneHundred, c: 7, d: c_style_enum_in_composite::AnotherEnum::Vienna, e: 8}
-+// gdbr-check:$5 = c_style_enum_in_composite::PackedStruct {a: 6, b: c_style_enum_in_composite::OneHundred, c: 7, d: c_style_enum_in_composite::Vienna, e: 8}
- 
- // gdb-command:print non_padded_struct
- // gdbg-check:$6 = {a = OneMillion, b = MountainView, c = OneThousand, d = Toronto}
--// gdbr-check:$6 = c_style_enum_in_composite::NonPaddedStruct {a: c_style_enum_in_composite::AnEnum::OneMillion, b: c_style_enum_in_composite::AnotherEnum::MountainView, c: c_style_enum_in_composite::AnEnum::OneThousand, d: c_style_enum_in_composite::AnotherEnum::Toronto}
-+// gdbr-check:$6 = c_style_enum_in_composite::NonPaddedStruct {a: c_style_enum_in_composite::OneMillion, b: c_style_enum_in_composite::MountainView, c: c_style_enum_in_composite::OneThousand, d: c_style_enum_in_composite::Toronto}
- 
- // gdb-command:print struct_with_drop
- // gdbg-check:$7 = {__0 = {a = OneHundred, b = Vienna}, __1 = 9}
--// gdbr-check:$7 = (c_style_enum_in_composite::StructWithDrop {a: c_style_enum_in_composite::AnEnum::OneHundred, b: c_style_enum_in_composite::AnotherEnum::Vienna}, 9)
-+// gdbr-check:$7 = (c_style_enum_in_composite::StructWithDrop {a: c_style_enum_in_composite::OneHundred, b: c_style_enum_in_composite::Vienna}, 9)
- 
- // === LLDB TESTS ==================================================================================
- 
-diff -r -u rustc-1.30.1-src-orig/src/test/debuginfo/gdb-pretty-struct-and-enums-pre-gdb-7-7.rs rustc-1.30.1-src/src/test/debuginfo/gdb-pretty-struct-and-enums-pre-gdb-7-7.rs
---- rustc-1.30.1-src-orig/src/test/debuginfo/gdb-pretty-struct-and-enums-pre-gdb-7-7.rs	2019-02-04 12:49:34.043483393 -0800
-+++ rustc-1.30.1-src/src/test/debuginfo/gdb-pretty-struct-and-enums-pre-gdb-7-7.rs	2019-02-04 13:02:17.954691634 -0800
-@@ -27,15 +27,15 @@
- 
- // gdb-command: print c_style_enum1
- // gdbg-check:$3 = CStyleEnumVar1
--// gdbr-check:$3 = gdb_pretty_struct_and_enums_pre_gdb_7_7::CStyleEnum::CStyleEnumVar1
-+// gdbr-check:$3 = gdb_pretty_struct_and_enums_pre_gdb_7_7::CStyleEnumVar1
- 
- // gdb-command: print c_style_enum2
- // gdbg-check:$4 = CStyleEnumVar2
--// gdbr-check:$4 = gdb_pretty_struct_and_enums_pre_gdb_7_7::CStyleEnum::CStyleEnumVar2
-+// gdbr-check:$4 = gdb_pretty_struct_and_enums_pre_gdb_7_7::CStyleEnumVar2
- 
- // gdb-command: print c_style_enum3
- // gdbg-check:$5 = CStyleEnumVar3
--// gdbr-check:$5 = gdb_pretty_struct_and_enums_pre_gdb_7_7::CStyleEnum::CStyleEnumVar3
-+// gdbr-check:$5 = gdb_pretty_struct_and_enums_pre_gdb_7_7::CStyleEnumVar3
- 
- #![allow(dead_code, unused_variables)]
diff --git a/gnu/packages/patches/rust-1.45-linker-locale.patch b/gnu/packages/patches/rust-1.45-linker-locale.patch
deleted file mode 100644
index 40220e8e77..0000000000
--- a/gnu/packages/patches/rust-1.45-linker-locale.patch
+++ /dev/null
@@ -1,14 +0,0 @@
-Patch will be included upstream in 1.47: https://github.com/rust-lang/rust/pull/74416
-diff --git a/src/librustc_codegen_ssa/back/linker.rs b/src/librustc_codegen_ssa/back/linker.rs
-index e64aafa599f..12575ac4358 100644
---- a/src/librustc_codegen_ssa/back/linker.rs
-+++ b/src/librustc_codegen_ssa/back/linker.rs
-@@ -28,7 +28,7 @@ use rustc_target::spec::{LinkOutputKind, LinkerFlavor, LldFlavor};
- pub fn disable_localization(linker: &mut Command) {
-     // No harm in setting both env vars simultaneously.
-     // Unix-style linkers.
--    linker.env("LC_ALL", "C");
-+    linker.env("LC_ALL", "en_US.UTF-8");
-     // MSVC's `link.exe`.
-     linker.env("VSLANG", "1033");
- }
diff --git a/gnu/packages/patches/rust-1.48-linker-locale.patch b/gnu/packages/patches/rust-1.48-linker-locale.patch
deleted file mode 100644
index d06dcbe682..0000000000
--- a/gnu/packages/patches/rust-1.48-linker-locale.patch
+++ /dev/null
@@ -1,14 +0,0 @@
-https://github.com/rust-lang/rust/pull/74416
-diff --git a/compiler/rustc_codegen_ssa/src/back/linker.rs b/compiler/rustc_codegen_ssa/src/back/linker.rs
-index 3df956c465e..f45fee45be4 100644
---- a/compiler/rustc_codegen_ssa/src/back/linker.rs
-+++ b/compiler/rustc_codegen_ssa/src/back/linker.rs
-@@ -28,7 +28,7 @@
- pub fn disable_localization(linker: &mut Command) {
-     // No harm in setting both env vars simultaneously.
-     // Unix-style linkers.
--    linker.env("LC_ALL", "C");
-+    linker.env("LC_ALL", "en_US.UTF-8");
-     // MSVC's `link.exe`.
-     linker.env("VSLANG", "1033");
- }
diff --git a/gnu/packages/patches/rust-bootstrap-stage0-test.patch b/gnu/packages/patches/rust-bootstrap-stage0-test.patch
deleted file mode 100644
index e8484903e5..0000000000
--- a/gnu/packages/patches/rust-bootstrap-stage0-test.patch
+++ /dev/null
@@ -1,55 +0,0 @@
-Bootstrap tests failed with local stage0 cargo and rustc
-Backported changes from https://github.com/rust-lang/rust/pull/51977
-
-From 0834d9d771e912f51deca6c25699e44734624546 Mon Sep 17 00:00:00 2001
-From: Nikolai Merinov <nikolai.merinov@member.fsf.org>
-Date: Mon, 2 Jul 2018 01:45:35 +0500
-Subject: [PATCH] bootstrap: tests should use rustc from config.toml
-
-Tests should always use "rustc" and "cargo" from config.toml instead
-of assuming that stage0 binaries was downloaded to build directory.
----
- src/bootstrap/bootstrap.py | 2 ++
- src/bootstrap/config.rs    | 6 ++----
- 2 files changed, 4 insertions(+), 4 deletions(-)
-
-diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py
-index 487440becf..1701f7b83a 100644
---- a/src/bootstrap/bootstrap.py
-+++ b/src/bootstrap/bootstrap.py
-@@ -788,6 +788,8 @@ def bootstrap(help_triggered):
-     env["BOOTSTRAP_PARENT_ID"] = str(os.getpid())
-     env["BOOTSTRAP_PYTHON"] = sys.executable
-     env["BUILD_DIR"] = build.build_dir
-+    env["CARGO"] = build.cargo()
-+    env["RUSTC"] = build.rustc()
-     run(args, env=env, verbose=build.verbose)
- 
- 
-diff --git a/src/bootstrap/config.rs b/src/bootstrap/config.rs
-index 6dd6291be2..d1a0deb583 100644
---- a/src/bootstrap/config.rs
-+++ b/src/bootstrap/config.rs
-@@ -23,7 +23,6 @@ use std::cmp;
- 
- use num_cpus;
- use toml;
--use util::exe;
- use cache::{INTERNER, Interned};
- use flags::Flags;
- pub use flags::Subcommand;
-@@ -362,9 +361,8 @@ impl Config {
-         config.src = Config::path_from_python("SRC");
-         config.out = Config::path_from_python("BUILD_DIR");
- 
--        let stage0_root = config.out.join(&config.build).join("stage0/bin");
--        config.initial_rustc = stage0_root.join(exe("rustc", &config.build));
--        config.initial_cargo = stage0_root.join(exe("cargo", &config.build));
-+        config.initial_rustc = Config::path_from_python("RUSTC");
-+        config.initial_cargo = Config::path_from_python("CARGO");
- 
-         config
-     }
--- 
-2.17.1
-
diff --git a/gnu/packages/patches/tcl-fix-cross-compilation.patch b/gnu/packages/patches/tcl-fix-cross-compilation.patch
deleted file mode 100644
index 00c36b8f27..0000000000
--- a/gnu/packages/patches/tcl-fix-cross-compilation.patch
+++ /dev/null
@@ -1,39 +0,0 @@
-From f7fa48c4c75a1e748dc5071e709c0b62ff739eaa Mon Sep 17 00:00:00 2001
-From: "jan.nijtmans" <nijtmans@users.sourceforge.net>
-Date: Mon, 9 Dec 2019 10:02:20 +0000
-Subject: [PATCH] Fix [abd4abedd2]: Failed to build tk 8.6.10 with cross
- compile
-
-Patch taken from upstream to fix cross-compilation. To be removed on next Tcl release.
-
----
- compat/strtol.c  | 2 +-
- compat/strtoul.c | 2 +-
- 2 files changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/compat/strtol.c b/compat/strtol.c
-index b7f69196ce2..811006a64c3 100644
---- a/compat/strtol.c
-+++ b/compat/strtol.c
-@@ -53,7 +53,7 @@ strtol(
-      */
- 
-     p = string;
--    while (TclIsSpaceProc(*p)) {
-+    while (isspace(UCHAR(*p))) {
- 	p += 1;
-     }
- 
-diff --git a/compat/strtoul.c b/compat/strtoul.c
-index e37eb05f823..15587f1da1a 100644
---- a/compat/strtoul.c
-+++ b/compat/strtoul.c
-@@ -74,7 +74,7 @@ strtoul(
-      */
- 
-     p = string;
--    while (TclIsSpaceProc(*p)) {
-+    while (isspace(UCHAR(*p))) {
- 	p += 1;
-     }
-     if (*p == '-') {
diff --git a/gnu/packages/patches/tcsh-fix-autotest.patch b/gnu/packages/patches/tcsh-fix-autotest.patch
index 200867cb9b..9f5790641b 100644
--- a/gnu/packages/patches/tcsh-fix-autotest.patch
+++ b/gnu/packages/patches/tcsh-fix-autotest.patch
@@ -63,17 +63,6 @@
  
  AT_DATA([comment2.csh],
  [[echo testing...@%:@\
---- tests/subst.at
-+++ tests/subst.at
-@@ -54,7 +54,7 @@ AT_CHECK([export HOME=$(getent passwd $(id -un) | awk -F: '{ print $(NF - 1) }')
- , [1
- ])
- 
--AT_CHECK([export HOME=$(getent passwd $(id -un) | awk -F: '{ print $(NF - 1) }'); echo "echo ~$(id -un)/foo; echo \"\$HOME/foo\"" | tcsh -f | uniq dnl
-+AT_CHECK([export HOME=$(getent passwd $(id -un) | awk -F: '{ print $(NF - 1) }'); echo "echo ~$(id -un)//foo; echo \"\$HOME/foo\"" | tcsh -f | uniq dnl
- 	  | wc -l | tr -d ' \t'], , [1
- ])
- 
 --- tests/variables.at
 +++ tests/variables.at
 @@ -666,7 +666,8 @@ set listflags=(-xA $cwd/args.sh)
diff --git a/gnu/packages/patches/texlive-bin-poppler-0.83.patch b/gnu/packages/patches/texlive-bin-poppler-0.83.patch
deleted file mode 100644
index 5e57e3efac..0000000000
--- a/gnu/packages/patches/texlive-bin-poppler-0.83.patch
+++ /dev/null
@@ -1,52 +0,0 @@
-Fix build with Poppler 0.83 and later.
-
-Taken from Arch Linux, but adjusted to patch the versioned Poppler
-files, as upstream applies it after copying them in place.
-https://git.archlinux.org/svntogit/packages.git/tree/trunk/texlive-poppler-0.83.patch?h=packages/texlive-bin
-
-diff -ru texlive-source-orig/texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc texlive-source/texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc
---- texlive-source-orig/texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc
-+++ texlive-source/texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc
-@@ -723,7 +723,7 @@
- #endif
-     // initialize
-     if (!isInit) {
--        globalParams = new GlobalParams();
-+        globalParams.reset(new GlobalParams());
-         globalParams->setErrQuiet(false);
-         isInit = true;
-     }
-@@ -1108,6 +1108,5 @@
-             delete_document(p);
-         }
-         // see above for globalParams
--        delete globalParams;
-     }
- }
-diff -ru texlive-source-orig/texk/web2c/pdftexdir/pdftosrc-poppler0.76.0.cc texlive-source/texk/web2c/pdftexdir/pdftosrc-poppler0.76.0.cc
---- texlive-source-orig/texk/web2c/pdftexdir/pdftosrc-poppler0.76.0.cc
-+++ texlive-source/texk/web2c/pdftexdir/pdftosrc-poppler0.76.0.cc
-@@ -79,7 +79,7 @@
-         exit(1);
-     }
-     fileName = new GString(argv[1]);
--    globalParams = new GlobalParams();
-+    globalParams.reset(new GlobalParams());
-     doc = new PDFDoc(fileName);
-     if (!doc->isOk()) {
-         fprintf(stderr, "Invalid PDF file\n");
-@@ -100,7 +100,7 @@
-     if (objnum == 0) {
-         srcStream = catalogDict.dictLookup("SourceObject");
-         static char const_SourceFile[] = "SourceFile";
--        if (!srcStream.isStream(const_SourceFile)) {
-+        if (!srcStream.isDict(const_SourceFile)) {
-             fprintf(stderr, "No SourceObject found\n");
-             exit(1);
-         }
-@@ -202,5 +202,4 @@
-         fprintf(stderr, "Cross-reference table extracted to %s\n", outname);
-     fclose(outfile);
-     delete doc;
--    delete globalParams;
- }
diff --git a/gnu/packages/patches/texlive-bin-poppler-0.86.patch b/gnu/packages/patches/texlive-bin-poppler-0.86.patch
deleted file mode 100644
index b1adca657b..0000000000
--- a/gnu/packages/patches/texlive-bin-poppler-0.86.patch
+++ /dev/null
@@ -1,17 +0,0 @@
-Fix build with Poppler 0.86 and later.
-
-Taken from Arch Linux, but adjusted to patch the versioned Poppler
-files, as upstream applies it after copying them in place.
-https://git.archlinux.org/svntogit/packages.git/tree/trunk/texlive-poppler-0.86.patch?h=packages/texlive-bin
-
---- a/texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc	2020-03-03 21:11:35.102711802 +0000
-+++ b/texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc	2020-03-03 21:13:13.057420111 +0000
-@@ -757,7 +757,7 @@
-     if (page_name) {
-         // get page by name
-         GString name(page_name);
--        LinkDest *link = pdf_doc->doc->findDest(&name);
-+        LinkDest *link = pdf_doc->doc->findDest(&name).get();
-         if (link == 0 || !link->isOk())
-             pdftex_fail("PDF inclusion: invalid destination <%s>", page_name);
-         Ref ref = link->getPageRef();
diff --git a/gnu/packages/patches/zstd-CVE-2021-24031_CVE-2021-24032.patch b/gnu/packages/patches/zstd-CVE-2021-24031_CVE-2021-24032.patch
deleted file mode 100644
index 48b5eb18eb..0000000000
--- a/gnu/packages/patches/zstd-CVE-2021-24031_CVE-2021-24032.patch
+++ /dev/null
@@ -1,68 +0,0 @@
-Description: fix race condition allowing attackers to access destination file
- This commit addresses https://github.com/facebook/zstd/issues/2491.
- .
- Note that a downside of this solution is that it is global: `umask()` affects
- all file creation calls in the process. I believe this is safe since
- `fileio.c` functions should only ever be used in the zstd binary, and these
- are (almost) the only files ever created by zstd, and AIUI they're only
- created in a single thread. So we can get away with messing with global state.
- .
- Note that this doesn't change the permissions of files created by `dibio.c`.
- I'm not sure what those should be...
-Author: W. Felix Handte <w@felixhandte.com>
-Origin: upstream
-Bug: https://github.com/facebook/zstd/issues/2491
-Bug-Debian: https://github.com/facebook/zstd/issues/2491
-Applied-Upstream: commit:a774c5797399040af62db21d8a9b9769e005430e
-Reviewed-by: Étienne Mollier <etienne.mollier@mailoo.org>
-Last-Update: 2021-03-03
----
-This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
---- a/programs/fileio.c
-+++ b/programs/fileio.c
-@@ -606,11 +606,11 @@ FIO_openDstFile(FIO_prefs_t* const prefs
-             FIO_remove(dstFileName);
-     }   }
- 
--    {   FILE* const f = fopen( dstFileName, "wb" );
-+    {   const int old_umask = UTIL_umask(0177); /* u-x,go-rwx */
-+        FILE* const f = fopen( dstFileName, "wb" );
-+        UTIL_umask(old_umask);
-         if (f == NULL) {
-             DISPLAYLEVEL(1, "zstd: %s: %s\n", dstFileName, strerror(errno));
--        } else if(srcFileName != NULL && strcmp (srcFileName, stdinmark)) {
--            chmod(dstFileName, 00600);
-         }
-         return f;
-     }
---- a/programs/util.c
-+++ b/programs/util.c
-@@ -54,6 +54,15 @@ int UTIL_getFileStat(const char* infilen
-     return 1;
- }
- 
-+int UTIL_umask(int mode) {
-+#if PLATFORM_POSIX_VERSION > 0
-+    return umask(mode);
-+#else
-+    /* do nothing, fake return value */
-+    return mode;
-+#endif
-+}
-+
- int UTIL_setFileStat(const char *filename, stat_t *statbuf)
- {
-     int res = 0;
---- a/programs/util.h
-+++ b/programs/util.h
-@@ -136,6 +136,10 @@ int UTIL_isSameFile(const char* file1, c
- int UTIL_compareStr(const void *p1, const void *p2);
- int UTIL_isCompressedFile(const char* infilename, const char *extensionList[]);
- const char* UTIL_getFileExtension(const char* infilename);
-+/**
-+ * Wraps umask(). Does nothing when the platform doesn't have that concept.
-+ */
-+int UTIL_umask(int mode);
- 
- #ifndef _MSC_VER
- U32 UTIL_isFIFO(const char* infilename);
diff --git a/gnu/packages/patches/zziplib-CVE-2018-16548.patch b/gnu/packages/patches/zziplib-CVE-2018-16548.patch
deleted file mode 100644
index a17c6a9768..0000000000
--- a/gnu/packages/patches/zziplib-CVE-2018-16548.patch
+++ /dev/null
@@ -1,49 +0,0 @@
-The following 3 patches applied to 0.13.69 in this order, combined:
-https://github.com/gdraheim/zziplib/commit/9411bde3e4a70a81ff3ffd256b71927b2d90dcbb.patch
-https://github.com/gdraheim/zziplib/commit/d2e5d5c53212e54a97ad64b793a4389193fec687.patch
-https://github.com/gdraheim/zziplib/commit/0e1dadb05c1473b9df2d7b8f298dab801778ef99.patch
-
-diff --git a/test/test.zip b/test/test.zip
-index 2c992ea..952d475 100644
-Binary files a/test/test.zip and b/test/test.zip differ
-diff --git a/zzip/zip.c b/zzip/zip.c
-index 14e2e06..f97a40a 100644
---- a/zzip/zip.c
-+++ b/zzip/zip.c
-@@ -472,9 +472,15 @@ __zzip_parse_root_directory(int fd,
-         } else
-         {
-             if (io->fd.seeks(fd, zz_rootseek + zz_offset, SEEK_SET) < 0)
-+	    {
-+	    	free(hdr0);
-                 return ZZIP_DIR_SEEK;
-+	    }
-             if (io->fd.read(fd, &dirent, sizeof(dirent)) < __sizeof(dirent))
-+	    {
-+	    	free(hdr0);
-                 return ZZIP_DIR_READ;
-+	    }
-             d = &dirent;
-         }
- 
-@@ -574,11 +580,18 @@ __zzip_parse_root_directory(int fd,
- 
-         if (hdr_return)
-             *hdr_return = hdr0;
-+	else
-+	{
-+	    /* If it is not assigned to *hdr_return, it will never be free()'d */
-+	    free(hdr0);
-+	}
-     }                           /* else zero (sane) entries */
-+    else
-+        free(hdr0);
- #  ifndef ZZIP_ALLOW_MODULO_ENTRIES
--    return (entries != zz_entries ? ZZIP_CORRUPTED : 0);
-+    return (entries != zz_entries) ? ZZIP_CORRUPTED : 0;
- #  else
--    return ((entries & (unsigned)0xFFFF) != zz_entries ? ZZIP_CORRUPTED : 0);
-+    return ((entries & (unsigned)0xFFFF) != zz_entries) ? ZZIP_CORRUPTED : 0;
- #  endif
- }
- 
diff --git a/gnu/packages/patchutils.scm b/gnu/packages/patchutils.scm
index f190fec1a2..1a64ef3a94 100644
--- a/gnu/packages/patchutils.scm
+++ b/gnu/packages/patchutils.scm
@@ -348,7 +348,7 @@ you to figure out what is going on in that merge you keep avoiding.")
                  ;; as the python modules in this package in the wsgi.py file,
                  ;; as this will ensure they are available at runtime.
                  (define pythonpath
-                   (string-append (getenv "PYTHONPATH")
+                   (string-append (getenv "GUIX_PYTHONPATH")
                                   ":"
                                   (site-packages inputs outputs)))
                  (display
diff --git a/gnu/packages/pcre.scm b/gnu/packages/pcre.scm
index bc0e285001..318727915e 100644
--- a/gnu/packages/pcre.scm
+++ b/gnu/packages/pcre.scm
@@ -37,18 +37,14 @@
 (define-public pcre
   (package
    (name "pcre")
-   (version "8.44")
+   (version "8.45")
    (source (origin
             (method url-fetch)
-            (uri (list
-                  (string-append "ftp://ftp.csx.cam.ac.uk"
-                                 "/pub/software/programming/pcre/"
-                                 "pcre-" version ".tar.bz2")
-                  (string-append "mirror://sourceforge/pcre/pcre/"
-                                 version "/pcre-" version ".tar.bz2")))
+            (uri (string-append "https://ftp.pcre.org/pub/pcre/pcre-"
+                                version ".tar.bz2"))
             (sha256
              (base32
-              "0v9nk51wh55pcbnf2jr36yarz8ayajn6d7ywiq2wagivn9c8c40r"))))
+              "1f7zichy6iimmkfrqdl575sdlm795cyc75szgg1vc2xvsbf6zbjd"))))
    (build-system gnu-build-system)
    (outputs '("out"           ;library & headers
               "bin"           ;depends on Readline (adds 20MiB to the closure)
@@ -77,8 +73,7 @@
                                    (link lib (string-append static "/"
                                                             (basename lib)))
                                    (delete-file lib))
-                                 (find-files source "\\.a$"))
-                       #t))))))
+                                 (find-files source "\\.a$"))))))))
    (synopsis "Perl Compatible Regular Expressions")
    (description
     "The PCRE library is a set of functions that implement regular expression
@@ -91,14 +86,14 @@ POSIX regular expression API.")
 (define-public pcre2
   (package
     (name "pcre2")
-    (version "10.35")
+    (version "10.37")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/pcre/pcre2/"
                                   version "/pcre2-" version ".tar.bz2"))
               (sha256
                (base32
-                "04s6kmk9qdd4rjz477h547j4bx7hfz0yalpvrm381rqc5ghaijww"))))
+                "0w6jaswjmg3bc0wsw6msn5bvk66p90kf2asnnj9rhll0idpak5ad"))))
    (build-system gnu-build-system)
    (inputs `(("bzip2" ,bzip2)
              ("readline" ,readline)
@@ -117,8 +112,7 @@ POSIX regular expression API.")
         (add-after 'unpack 'patch-paths
           (lambda _
             (substitute* "RunGrepTest"
-              (("/bin/echo") (which "echo")))
-            #t)))))
+              (("/bin/echo") (which "echo"))))))))
    (synopsis "Perl Compatible Regular Expressions")
    (description
     "The PCRE library is a set of functions that implement regular expression
diff --git a/gnu/packages/pdf.scm b/gnu/packages/pdf.scm
index d6e87c0923..d0ccb4ebce 100644
--- a/gnu/packages/pdf.scm
+++ b/gnu/packages/pdf.scm
@@ -223,14 +223,14 @@ please install the @code{flyer-composer-gui} package.")))
 (define-public poppler
   (package
    (name "poppler")
-   (version "0.86.1")
+   (version "21.07.0")
    (source (origin
             (method url-fetch)
             (uri (string-append "https://poppler.freedesktop.org/poppler-"
                                 version ".tar.xz"))
             (sha256
              (base32
-              "0v3z4mk1rr8i0c4cfkab7pnxdbil30j4cm4w6cqlq6cfghkhlqxg"))))
+              "1m54hsi8z6c13jdbjwz55flkra1mahmkw2igavbf8p86d2gv4sp2"))))
    (build-system cmake-build-system)
    ;; FIXME:
    ;;  use libcurl:        no
@@ -256,12 +256,13 @@ please install the @code{flyer-composer-gui} package.")))
         ("glib" ,glib "bin")                      ; glib-mkenums, etc.
         ("gobject-introspection" ,gobject-introspection)))
    (arguments
-    `(#:tests? #f ; no test data provided with the tarball
+    `(#:tests? #f                      ;no test data provided with the tarball
       #:configure-flags
       (let* ((out (assoc-ref %outputs "out"))
              (lib (string-append out "/lib")))
         (list "-DENABLE_UNSTABLE_API_ABI_HEADERS=ON" ;to install header files
               "-DENABLE_ZLIB=ON"
+              "-DENABLE_BOOST=OFF"      ;disable Boost to save size
               (string-append "-DCMAKE_INSTALL_LIBDIR=" lib)
               (string-append "-DCMAKE_INSTALL_RPATH=" lib)))))
    (synopsis "PDF rendering library")
diff --git a/gnu/packages/perl-check.scm b/gnu/packages/perl-check.scm
index 87f233a3aa..cab1c0916d 100644
--- a/gnu/packages/perl-check.scm
+++ b/gnu/packages/perl-check.scm
@@ -971,7 +971,7 @@ bit more fine-grained control over test suites.")
 (define-public perl-test-needs
   (package
     (name "perl-test-needs")
-    (version "0.002005")
+    (version "0.002009")
     (source
      (origin
        (method url-fetch)
@@ -981,7 +981,7 @@ bit more fine-grained control over test suites.")
              ".tar.gz"))
        (sha256
         (base32
-         "16gkgpmr9hvkz382iaqd3500269lk2d44fqaw3dsrvc66nc36kss"))))
+         "1hsagkxw0b0xf9qk4i4c74dkjskrk23jcsxhb3graqfi78cj272p"))))
     (build-system perl-build-system)
     (home-page
      "https://metacpan.org/release/Test-Needs")
diff --git a/gnu/packages/perl.scm b/gnu/packages/perl.scm
index db10c44a20..99a152e0ab 100644
--- a/gnu/packages/perl.scm
+++ b/gnu/packages/perl.scm
@@ -13,7 +13,7 @@
 ;;; Copyright © 2016 Ben Woodcroft <donttrustben@gmail.com>
 ;;; Copyright © 2016, 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2017 Raoul J.P. Bonnal <ilpuccio.febo@gmail.com>
-;;; Copyright © 2017, 2018 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2017, 2018, 2020, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2017 Adriano Peluso <catonano@gmail.com>
 ;;; Copyright © 2017, 2018–2021 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
@@ -91,18 +91,17 @@
   ;; Yeah, Perl...  It is required early in the bootstrap process by Linux.
   (package
     (name "perl")
-    (version "5.30.2")
+    (version "5.34.0")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://cpan/src/5.0/perl-"
                                  version ".tar.gz"))
              (sha256
               (base32
-               "128nfdxcvxfn5kq55qcfrx2851ys8hv794dcdxbyny8rm7w7vnv6"))
+               "16mywn5afpv1mczv9dlc1w84rbgjgrr0pyr4c0hhb2wnif0zq7jm"))
              (patches (search-patches
                        "perl-no-sys-dirs.patch"
                        "perl-autosplit-default-time.patch"
-                       "perl-deterministic-ordering.patch"
                        "perl-reproducible-build-date.patch"))))
     (build-system gnu-build-system)
     (arguments
@@ -124,32 +123,25 @@
        #:phases
        (modify-phases %standard-phases
          (add-before 'configure 'setup-configure
-           (lambda _
+           (lambda* (#:key inputs #:allow-other-keys)
              ;; Use the right path for `pwd'.
-             ;; TODO: use coreutils from INPUTS instead of 'which'
-             ;; in next rebuild cycle, see fixup below.
              (substitute* "dist/PathTools/Cwd.pm"
-               (("/bin/pwd")
-                (which "pwd")))
+               (("'/bin/pwd'")
+                (string-append "'" (search-input-file inputs "bin/pwd") "'")))
 
              ;; Build in GNU89 mode to tolerate C++-style comment in libc's
              ;; <bits/string3.h>.
              (substitute* "cflags.SH"
                (("-std=c89")
-                "-std=gnu89"))
-             #t))
+                "-std=gnu89"))))
          ,@(if (%current-target-system)
                `((add-after 'unpack 'unpack-cross
                    (lambda* (#:key native-inputs inputs #:allow-other-keys)
                      (let ((cross-checkout
-                            (assoc-ref native-inputs "perl-cross"))
-                           (cross-patch
-                            (assoc-ref native-inputs "perl-cross-patch")))
+                            (assoc-ref native-inputs "perl-cross")))
                        (rename-file "Artistic" "Artistic.perl")
                        (rename-file "Copying" "Copying.perl")
-                       (copy-recursively cross-checkout ".")
-                       (format #t "Applying ~a\n" cross-patch)
-                       (invoke "patch" "-p1" "-i" cross-patch))
+                       (copy-recursively cross-checkout "."))
                      (let ((bash (assoc-ref inputs "bash")))
                        (substitute* '("Makefile.config.SH"
                                       "cnf/config.guess"
@@ -160,8 +152,7 @@
                          (("! */bin/sh") (string-append "! " bash "/bin/bash"))
                          ((" /bin/sh") (string-append bash "/bin/bash")))
                        (substitute* '("ext/Errno/Errno_pm.PL")
-                         (("\\$cpp < errno.c") "$Config{cc} -E errno.c")))
-                       #t))
+                         (("\\$cpp < errno.c") "$Config{cc} -E errno.c")))))
                  (replace 'configure
                    (lambda* (#:key configure-flags outputs inputs #:allow-other-keys)
                      (let* ((out (assoc-ref outputs "out"))
@@ -177,22 +168,18 @@
                                        (lambda (x) (or (string-prefix? "-d" x)
                                                        (string-prefix? "-Dcc=" x))))
                                       configure-flags)))
-                            (bash (assoc-ref inputs "bash"))
-                            (coreutils (assoc-ref inputs "coreutils")))
+                            (bash (assoc-ref inputs "bash")))
                        (format (current-error-port)
-                               "running ./configure ~a\n" (string-join configure-flags))
+                               "running ./configure ~a\n"
+                               (string-join configure-flags))
                        (apply invoke (cons "./configure" configure-flags))
                        (substitute* "config.sh"
                          (((string-append store-directory "/[^/]*-bash-[^/]*"))
                           bash))
                        (substitute* '("config.h")
                          (("^#define SH_PATH .*")
-                          (string-append  "#define SH_PATH \"" bash "/bin/bash\"\n")))
-                       ;;TODO: fix this in setup-configure next rebuild cycle
-                       (substitute* "dist/PathTools/Cwd.pm"
-                         (((string-append store-directory "/[^/]*-coreutils-[^/]*"))
-                          coreutils))
-                       #t)))
+                          (string-append  "#define SH_PATH \""
+                                          bash "/bin/bash\"\n"))))))
                  (add-after 'build 'touch-non-built-files-for-install
                    (lambda _
                      ;; `make install' wants to install these although they do
@@ -206,8 +193,7 @@
                                  '("Pod-Usage/blib/script/pod2text"
                                    "Pod-Usage/blib/script/pod2usage"
                                    "Pod-Checker/blib/script/podchecker"
-                                   "Pod-Parser/blib/script/podselect")))
-                     #t)))
+                                   "Pod-Parser/blib/script/podselect"))))))
                `((replace 'configure
                    (lambda* (#:key configure-flags #:allow-other-keys)
                      (format #t "Perl configure flags: ~s~%" configure-flags)
@@ -238,13 +224,12 @@
                              (("libpth => .*$")
                               (string-append "libpth => '" libc
                                              "/lib',\n"))))
-                         config2)
-               #t))))))
+                         config2)))))))
     (inputs
-     (if (%current-target-system)
-         `(("bash" ,bash-minimal)
-           ("coreutils" ,coreutils))
-         '()))
+     (append (list coreutils-minimal)
+             (if (%current-target-system)
+                 (list bash-minimal)
+                 '())))
     (native-inputs
      (if (%current-target-system)
          `(("perl-cross"
@@ -252,11 +237,10 @@
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/arsv/perl-cross")
-                     (commit "1.3.3")))
-               (file-name (git-file-name "perl-cross" "1.3.3"))
+                     (commit "1.3.6")))
+               (file-name (git-file-name "perl-cross" "1.3.6"))
                (sha256
-                (base32 "065qbl1x44maykaj8p8za0b6qxj74bz7fi2zsrlydir1mqb1js3d"))))
-           ("perl-cross-patch" ,@(search-patches "perl-cross.patch")))
+                (base32 "0k5vyj40czbkfl7r3dcwxpc7dvdlp2xliaav358bviq3dq9vq9bb")))))
          '()))
     (native-search-paths (list (search-path-specification
                                 (variable "PERL5LIB")
@@ -5126,6 +5110,25 @@ vaguely inspired by John Ousterhout's Tk_ParseArgv.")
     (home-page "https://metacpan.org/release/Getopt-Tabular")
     (license (package-license perl))))
 
+(define-public perl-gettext
+  (package
+    (name "perl-gettext")
+    (version "1.07")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://cpan/authors/id/P/PV/PVANDRY"
+                                  "/gettext-" version ".tar.gz"))
+              (sha256
+               (base32
+                "05cwqjxxary11di03gg3fm6j9lbvg1dr2wpr311c1rwp8salg7ch"))))
+    (build-system perl-build-system)
+    (home-page "https://metacpan.org/release/gettext")
+    (synopsis "Perl bindings for POSIX i18n gettext functions")
+    (description
+     "Locale::gettext provides an object oriented interface to the
+internationalization functions provided by the C library.")
+    (license license:perl-license)))
+
 (define-public perl-graph
   (package
     (name "perl-graph")
@@ -8645,13 +8648,39 @@ available.")
          "01xifj83dv492lxixijmg6va02rf3ydlxly0a9slmx22r6qa1drh"))))
     (build-system perl-build-system)
     (propagated-inputs
-     `(("perl-devel-symdump" ,perl-devel-symdump)))
+     `(("perl-devel-symdump" ,perl-devel-symdump)
+       ("perl-pod-parser" ,perl-pod-parser)))
     (home-page "https://metacpan.org/release/Pod-Coverage")
     (synopsis "Check for comprehensive documentation of a module")
     (description "This module provides a mechanism for determining if the pod
 for a given module is comprehensive.")
     (license (package-license perl))))
 
+(define-public perl-pod-parser
+  (package
+    (name "perl-pod-parser")
+    (version "1.63")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://cpan/authors/id/M/MA/MAREKR/Pod-Parser-"
+                    version ".tar.gz"))
+              (sha256
+               (base32
+                "1k8clxxdjag56zm6cv38c3q81gj7xphfhh98l21jynwp55hvbq6v"))))
+    (build-system perl-build-system)
+    (home-page "https://metacpan.org/release/Pod-Parser")
+    (synopsis "Modules for parsing/translating POD format documents")
+    (description
+     "@code{Pod::Parser} is a base class for creating POD filters and
+translators.  It handles most of the effort involved with parsing the POD
+sections from an input stream, leaving subclasses free to be concerned only
+with performing the actual translation of text.
+
+@emph{NOTE}: This module is considered legacy.  New projects should prefer
+@code{Pod::Simple} instead.")
+    (license license:perl-license)))
+
 (define-public perl-pod-simple
   (package
     (name "perl-pod-simple")
@@ -11481,7 +11510,7 @@ MYMETA.yml.")
 (define-public perl-module-build
   (package
     (name "perl-module-build")
-    (version "0.4229")
+    (version "0.4231")
     (source
      (origin
        (method url-fetch)
@@ -11489,7 +11518,7 @@ MYMETA.yml.")
                            "Module-Build-" version ".tar.gz"))
        (sha256
         (base32
-         "064c03wxia7jz0i578awj4srykj0nnigm4p5r0dv0559rnk93r0z"))))
+         "05xpn8qg814y49vrih16zfr9iiwb7pmdf57ahjnc2h0p5illq3vy"))))
     (build-system perl-build-system)
     (propagated-inputs
      `(("perl-cpan-meta" ,perl-cpan-meta)))
@@ -11779,9 +11808,8 @@ prop, vhea, vmtx and the reading and writing of all other table types.")
          ;; This is needed for tests
          (add-after 'unpack 'set-TZDIR
            (lambda* (#:key inputs #:allow-other-keys)
-             (setenv "TZDIR" (string-append (assoc-ref inputs "tzdata")
-                                            "/share/zoneinfo"))
-             #t)))))
+             (setenv "TZDIR"
+                     (search-input-directory inputs "share/zoneinfo")))))))
     (native-inputs
      `(("perl-module-build" ,perl-module-build)
        ("tzdata" ,tzdata-for-tests)))
diff --git a/gnu/packages/photo.scm b/gnu/packages/photo.scm
index 673989e06b..2197623363 100644
--- a/gnu/packages/photo.scm
+++ b/gnu/packages/photo.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014, 2015, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2015, 2017, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015, 2017 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2016, 2017, 2018, 2019, 2021 Efraim Flashner <efraim@flashner.co.il>
@@ -156,13 +156,13 @@
                                               "/bin"))
                                        ":"))
                    (gi-typelib-path   (getenv "GI_TYPELIB_PATH"))
-                   (python-path       (getenv "PYTHONPATH")))
+                   (python-path       (getenv "GUIX_PYTHONPATH")))
                (for-each
                 (lambda (program)
                   (wrap-program program
                     `("PATH" ":" prefix (,path))
                     `("GI_TYPELIB_PATH" ":" prefix (,gi-typelib-path))
-                    `("PYTHONPATH"             ":" prefix (,python-path))))
+                    `("GUIX_PYTHONPATH"             ":" prefix (,python-path))))
                 (map (lambda (name)
                        (string-append out "/bin/" name))
                      '("analyze-pv-structure"
@@ -506,9 +506,9 @@ photographic equipment.")
 
              ;; Ensure the OpenEXR headers are found.
              (setenv "CPATH"
-                     (string-append (assoc-ref inputs "ilmbase")
-                                    "/include/OpenEXR:" (or (getenv "CPATH") "")))
-             #t))
+                     (string-append
+                      (search-input-directory inputs "include/OpenEXR")
+                      ":" (or (getenv "CPATH") "")))))
          (add-after 'install 'wrap-program
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (wrap-program (string-append (assoc-ref outputs "out")
@@ -657,10 +657,10 @@ such as Batch image processing.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((out               (assoc-ref outputs "out"))
                    (gi-typelib-path   (getenv "GI_TYPELIB_PATH"))
-                   (python-path       (getenv "PYTHONPATH")))
+                   (python-path       (getenv "GUIX_PYTHONPATH")))
                (wrap-program (string-append out "/bin/entangle")
                  `("GI_TYPELIB_PATH" ":" prefix (,gi-typelib-path))
-                 `("PYTHONPATH" ":" prefix (,python-path))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,python-path))))
              #t)))))
     (native-inputs
      `(("cmake" ,cmake)
diff --git a/gnu/packages/plotutils.scm b/gnu/packages/plotutils.scm
index 4b89ddafd1..0b2c24c743 100644
--- a/gnu/packages/plotutils.scm
+++ b/gnu/packages/plotutils.scm
@@ -224,7 +224,7 @@ colors, styles, options and details.")
        ("perl" ,perl)
        ("texinfo" ,texinfo)             ;For generating documentation
        ;; For the manual and the tests.
-       ("texlive" ,(texlive-union (list texlive-amsfonts/patched
+       ("texlive" ,(texlive-updmap.cfg (list texlive-amsfonts
                                         texlive-epsf
                                         texlive-etoolbox
                                         texlive-latex-base
@@ -306,9 +306,9 @@ colors, styles, options and details.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              ;; Make sure 'xasy' runs with the correct PYTHONPATH.
              (let* ((out (assoc-ref outputs "out"))
-                    (path (getenv "PYTHONPATH")))
+                    (path (getenv "GUIX_PYTHONPATH")))
                (wrap-program (string-append out "/share/asymptote/GUI/xasy.py")
-                 `("PYTHONPATH" ":" prefix (,path))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,path))))
              #t)))))
     (home-page "http://asymptote.sourceforge.net")
     (synopsis "Script-based vector graphics language")
diff --git a/gnu/packages/presentation.scm b/gnu/packages/presentation.scm
index 0ad407d36c..8d24a81f9d 100644
--- a/gnu/packages/presentation.scm
+++ b/gnu/packages/presentation.scm
@@ -62,12 +62,12 @@
                      `("PATH" ":" prefix (,(dirname (which "cowsay"))
                                           ,(dirname (which "figlet"))
                                           ,(dirname (which "jp2a"))))
-                     `("PYTHONPATH" prefix
+                     `("GUIX_PYTHONPATH" prefix
                        ,(cons (string-append out "/lib/python"
                                              (python-version python)
                                              "/site-packages")
                               (search-path-as-string->list
-                                (or (getenv "PYTHONPATH") ""))))))
+                                (or (getenv "GUIX_PYTHONPATH") ""))))))
                  '("presentty" "presentty-console")))
              #t)))))
     (inputs
diff --git a/gnu/packages/pretty-print.scm b/gnu/packages/pretty-print.scm
index 1fc1441052..d7a5ddc8e5 100644
--- a/gnu/packages/pretty-print.scm
+++ b/gnu/packages/pretty-print.scm
@@ -2,7 +2,7 @@
 ;;; Copyright © 2016, 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016, 2021 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
-;;; Copyright © 2017, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2017, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017–2021 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2019 Meiyo Peng <meiyo@riseup.net>
 ;;; Copyright © 2020 Paul Garlick <pgarlick@tourbillion-technology.com>
@@ -217,8 +217,7 @@ to @code{IOStreams}.")
              (let ((gcc (assoc-ref inputs "gcc")))
                (setenv "CPLUS_INCLUDE_PATH"
                        (string-join
-                        (cons (string-append (assoc-ref inputs "libcxx")
-                                             "/include/c++/v1")
+                        (cons (search-input-directory inputs "/include/c++/v1")
                               ;; Hide GCC's C++ headers so that they do not interfere with
                               ;; the Clang headers.
                               (delete (string-append gcc "/include/c++")
diff --git a/gnu/packages/protobuf.scm b/gnu/packages/protobuf.scm
index 322ce61b13..f8dff1f229 100644
--- a/gnu/packages/protobuf.scm
+++ b/gnu/packages/protobuf.scm
@@ -275,26 +275,13 @@ mechanism for serializing structured data.")
     (arguments
      `(#:phases
        (modify-phases %standard-phases
-         (add-before 'check 'setup-test-env
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((out (assoc-ref outputs "out"))
-                    (py3sitedir
-                     (string-append out "/lib/python"
-                                    ,(version-major+minor
-                                      (package-version python))
-                                    "/site-packages")))
-               (setenv "PYTHONPATH"
-                       (string-append py3sitedir ":"
-                                      (getenv "PYTHONPATH"))))
-             #t))
          (replace 'check
            (lambda _
              (invoke "pytest" "--cov-report" "term-missing" "--cov"
                      "pure_protobuf")
              (invoke "flake8" "pure_protobuf" "tests"
                      "--ignore=F541")
-             (invoke "isort" "-rc" "-c" "pure_protobuf" "tests")
-             #t)))))
+             (invoke "isort" "-rc" "-c" "pure_protobuf" "tests"))))))
     (home-page "https://pypi.org/project/pure-protobuf/")
     (synopsis "Protobuf implementation using dataclasses")
     (description
diff --git a/gnu/packages/pulseaudio.scm b/gnu/packages/pulseaudio.scm
index ea61dd807c..fa9a111d40 100644
--- a/gnu/packages/pulseaudio.scm
+++ b/gnu/packages/pulseaudio.scm
@@ -99,10 +99,11 @@
                    (("^/usr/bin/env") "env"))
                  #t))))
     (build-system gnu-build-system)
-    (inputs
-     `(("libvorbis" ,libvorbis)
+    (propagated-inputs
+     `(("flac" ,flac)
        ("libogg" ,libogg)
-       ("flac" ,flac)))
+       ("libvorbis" ,libvorbis)
+       ("opus" ,opus)))
     (native-inputs
      `(("pkg-config" ,pkg-config)
        ("python" ,python)))
@@ -232,6 +233,7 @@ rates.")
        ("libltdl" ,libltdl)
        ("fftwf" ,fftwf)
        ("avahi" ,avahi)
+       ("webrtc-audio-processing", webrtc-audio-processing)
 
        ;; For the optional X11 modules.
        ("libice" ,libice)
diff --git a/gnu/packages/pumpio.scm b/gnu/packages/pumpio.scm
index f8a60af760..1cdb2fdd88 100644
--- a/gnu/packages/pumpio.scm
+++ b/gnu/packages/pumpio.scm
@@ -50,11 +50,9 @@
              ;; Fix dependency tests.
              (substitute* "pumpa.pro"
                (("/usr/include/tidy\\.h")
-                (string-append (assoc-ref inputs "tidy")
-                               "/include/tidy.h"))
+                (search-input-file inputs "/include/tidy.h"))
                (("/usr/include/aspell.h")
-                (string-append (assoc-ref inputs "aspell")
-                               "/include/aspell.h")))
+                (search-input-file inputs "/include/aspell.h")))
              ;; Run qmake with proper installation prefix.
              (let ((prefix (string-append "PREFIX="
                                           (assoc-ref outputs "out"))))
diff --git a/gnu/packages/python-build.scm b/gnu/packages/python-build.scm
index ace80382bb..59ee91aa9c 100644
--- a/gnu/packages/python-build.scm
+++ b/gnu/packages/python-build.scm
@@ -39,14 +39,14 @@
 (define-public python-wheel
   (package
     (name "python-wheel")
-    (version "0.36.2")
+    (version "0.33.6")
     (source
       (origin
         (method url-fetch)
         (uri (pypi-uri "wheel" version))
         (sha256
          (base32
-          "0pi4w0brz7a86ddk6pm8p6j0w6d7jgacgxm0c2dab3k5cb8yy7p1"))))
+          "0ii6f34rvpjg3nmw4bc2h7fhdsy38y1h93hghncfs5akfrldmj8h"))))
     (build-system python-build-system)
     (arguments
      ;; FIXME: The test suite runs "python setup.py bdist_wheel", which in turn
@@ -145,7 +145,15 @@ Language (TOML) configuration files.")
                 "1d6m21lijwm04g50nwgsgj7x3vhblzw7jv05ah8psqgzk20bbch8"))))
     (build-system python-build-system)
     (arguments
-     `(#:tests? #f))                    ;to tests in the PyPI release
+     `(#:tests? #f                      ;to tests in the PyPI release
+       #:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'relax-requirements
+                    (lambda _
+                      (substitute* "setup.cfg"
+                        ;; Drop the requirement on python-packaging, which is
+                        ;; not required.
+                        ((".*packaging.*")
+                         "")))))))
     (propagated-inputs
      `(("python-pep517", python-pep517-bootstrap)
        ("python-toml" ,python-toml)))
diff --git a/gnu/packages/python-check.scm b/gnu/packages/python-check.scm
index 2a4f50ad46..5436a878c6 100644
--- a/gnu/packages/python-check.scm
+++ b/gnu/packages/python-check.scm
@@ -437,7 +437,7 @@ sub-package.")
              (add-installed-pythonpath inputs outputs)
              (invoke "pytest" "-vv"))))))
     (native-inputs
-     `(("python-pytest" ,python-pytest-6)
+     `(("python-pytest" ,python-pytest)
        ("python-setuptools" ,python-setuptools) ; needs setuptools >= 50.3.2
        ("python-setuptools-scm" ,python-setuptools-scm)
        ("python-setuptools-declarative-requirements"
@@ -740,9 +740,6 @@ compliance.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH"
-                     (string-append (getcwd) ":"
-                                    (getenv "PYTHONPATH")))
              (invoke "pytest"))))))
     (propagated-inputs
      `(("python-isort" ,python-isort)
@@ -1311,7 +1308,7 @@ supported by the MyPy typechecker.")
        ("python-importlib-metadata" ,python-importlib-metadata)
        ("python-lxml" ,python-lxml)
        ("python-psutil" ,python-psutil)
-       ("python-pytest" ,python-pytest-6)
+       ("python-pytest" ,python-pytest)
        ("python-pytest-cov" ,python-pytest-cov)
        ("python-pytest-forked" ,python-pytest-forked)
        ("python-pytest-xdist" ,python-pytest-xdist)
@@ -1332,6 +1329,61 @@ any Python VM with basically no runtime overhead.")
     ;; mypyc/lib-rt/getargs.c
     (license (list license:expat license:psfl))))
 
+;;; This variant exists to break a cycle between python-pylama and python-isort.
+(define-public python-mypy-minimal
+  (hidden-package
+   (package
+     (inherit python-mypy)
+     (name "python-mypy-minimal")
+     (arguments
+      `(#:tests? #f
+        #:phases (modify-phases %standard-phases
+                   ;; XXX: Fails with: "In procedure utime: No such file or
+                   ;; directory".
+                   (delete 'ensure-no-mtimes-pre-1980))))
+     (native-inputs '()))))
+
+(define-public python-pylama
+  (package
+    (name "python-pylama")
+    (version "7.7.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "pylama" version))
+       (sha256
+        (base32
+         "13vx7daqz2918y9s8q3v2i3xaq3ah43a9p58srqi6hqskkpm7blv"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'disable-failing-tests
+                    (lambda _
+                      ;; Fails with: "ImportError: cannot import name
+                      ;; 'commented_out_code_line_numbers' from 'eradicate'".
+                      (delete-file "pylama/lint/pylama_eradicate.py")
+                      ;; Requires python-astroid, which fails to build on
+                      ;; Python 3.9+ (see:
+                      ;; https://github.com/PyCQA/astroid/issues/881).
+                      (delete-file "pylama/lint/pylama_pylint.py"))))))
+    (native-inputs
+     `(("python-py" ,python-py)
+       ("python-pytest" ,python-pytest)
+       ("python-radon" ,python-radon)))
+    (propagated-inputs
+     `(("python-mccabe" ,python-mccabe)
+       ("python-mypy", python-mypy-minimal)
+       ("python-pycodestyle" ,python-pycodestyle)
+       ("python-pydocstyle" ,python-pydocstyle)
+       ("python-pyflakes" ,python-pyflakes)))
+    (home-page "https://github.com/klen/pylama")
+    (synopsis "Code audit tool for python")
+    (description "Pylama is a code audit tool for Python and JavaScript to check
+for style, syntax and other code health metrics.  It is essentially a
+convenient wrapper above tools such as Pyflakes, pydocstyle, pycodestyle and
+McCabe, among others.")
+    (license license:lgpl3+)))
+
 (define-public python-pyannotate
   (package
     (name "python-pyannotate")
diff --git a/gnu/packages/python-crypto.scm b/gnu/packages/python-crypto.scm
index d9102adcc9..c864835248 100644
--- a/gnu/packages/python-crypto.scm
+++ b/gnu/packages/python-crypto.scm
@@ -591,14 +591,14 @@ message digests and key derivation functions.")
 (define-public python-pyopenssl
   (package
     (name "python-pyopenssl")
-    (version "20.0.0")
+    (version "20.0.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "pyOpenSSL" version))
        (sha256
         (base32
-         "1i8ab5zn9i9iq2ksizp3rd42v157kacddzz88kviqw3kpp68xw4j"))))
+         "0labcbh2g0jhgisd79wx9kixmi6fip28096d1xb05fj3jmsiq8sc"))))
     (build-system python-build-system)
     (arguments
      '(#:phases
@@ -610,7 +610,7 @@ message digests and key derivation functions.")
              ;; PyOpenSSL runs tests against a certificate with a fixed
              ;; expiry time.  To ensure successful builds in the future,
              ;; set the time to roughly the release date.
-             (invoke "faketime" "2020-12-01" "py.test" "-v" "-k"
+             (invoke "faketime" "2021-05-01" "py.test" "-v" "-k"
                      (string-append
                       ;; This test tries to look up certificates from
                       ;; the compiled-in default path in OpenSSL, which
@@ -810,31 +810,20 @@ PKCS#8, PKCS#12, PKCS#5, X.509 and TSP.")
            (substitute* "setup.py"
              (("\"wheel\"") ""))
            ;; Remove bundled libsodium.
-           (delete-file-recursively "src/libsodium")
-           #t))
+           (delete-file-recursively "src/libsodium")))
        (sha256
         (base32
          "01b56hxrbif3hx8l6rwz5kljrgvlbj7shmmd2rjh0hn7974a5sal"))))
     (build-system python-build-system)
     (arguments
-     `(#:modules (,@%python-build-system-modules
-                  (guix build utils)
-                  (ice-9 ftw)
-                  (srfi srfi-26))
-       #:phases
-       (modify-phases (@ (guix build python-build-system) %standard-phases)
+     `(#:phases
+       (modify-phases %standard-phases
          (add-before 'build 'use-system-sodium
            (lambda _
-             (setenv "SODIUM_INSTALL" "system")
-             #t))
+             (setenv "SODIUM_INSTALL" "system")))
          (replace 'check
            (lambda _
-             (let ((build-directory
-                    (car (scandir "build" (cut string-prefix? "lib" <>)))))
-               (setenv "PYTHONPATH"
-                       (string-append "./build/" build-directory ":"
-                                      (getenv "PYTHONPATH")))
-               (invoke "pytest" "-vv")))))))
+             (invoke "pytest" "-vv"))))))
     (native-inputs
      `(("python-hypothesis" ,python-hypothesis)
        ("python-pytest" ,python-pytest)))
@@ -1188,9 +1177,7 @@ none of them have everything that I'd like, so here's one more.  It uses
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "libnacl/__init__.py"
                (("/usr/local/lib/libsodium.so")
-                (string-append (assoc-ref inputs "libsodium")
-                               "/lib/libsodium.so")))
-             #t)))))
+                (search-input-file inputs "/lib/libsodium.so"))))))))
     (native-inputs
      `(("python-pyhamcrest" ,python-pyhamcrest)))
     (inputs
diff --git a/gnu/packages/python-web.scm b/gnu/packages/python-web.scm
index b75cb5ddfd..3b03a811ad 100644
--- a/gnu/packages/python-web.scm
+++ b/gnu/packages/python-web.scm
@@ -193,12 +193,9 @@ API rules.")
                 (string-append "@pytest.mark.xfail\n" all)))
 
              ;; Don't test the aiohttp pytest plugin to avoid a dependency loop.
-             (delete-file "tests/test_pytest_plugin.py")
-             #t))
+             (delete-file "tests/test_pytest_plugin.py")))
          (replace 'check
            (lambda* (#:key tests? #:allow-other-keys)
-             (setenv "PYTHONPATH"
-                     (string-append ".:" (getenv "PYTHONPATH")))
              (if tests?
                  (invoke "pytest" "-vv"
                          ;; Disable loading the aiohttp coverage plugin
@@ -321,9 +318,6 @@ comes with a SOCKS proxy client.")
      '(#:phases (modify-phases %standard-phases
                   (replace 'check
                     (lambda _
-                      (setenv "PYTHONPATH"
-                              (string-append "./build/lib:"
-                                             (getenv "PYTHONPATH")))
                       (invoke "pytest" "-vv"))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)
@@ -435,9 +429,6 @@ Model} (SAM) templates into AWS CloudFormation templates.")
                                   "tests/ext/aiohttp/test_client.py"))))
                   (replace 'check
                     (lambda _
-                      (setenv "PYTHONPATH"
-                              (string-append "./build/lib:.:"
-                                             (getenv "PYTHONPATH")))
                       (invoke "pytest" "-vv" "tests"))))))
     (native-inputs
      `(;; These are required for the test suite.
@@ -489,11 +480,6 @@ emit information from within their applications to the AWS X-Ray service.")
                          "test/unit/module/maintenance/test_update_documentation.py")
                         (delete-file
                          "test/unit/module/maintenance/test_update_resource_specs.py")
-                        (setenv "PYTHONPATH"
-                                (string-append "./build/lib:"
-                                               (getenv "PYTHONPATH")))
-                        (setenv "PATH" (string-append out "/bin:"
-                                                      (getenv "PATH")))
                         (invoke "python" "-m" "unittest" "discover"
                                 "-s" "test")))))))
     (native-inputs
@@ -776,9 +762,6 @@ content using a variety of algorithms.")
      `(#:phases (modify-phases %standard-phases
                   (replace 'check
                     (lambda _
-                      (setenv "PYTHONPATH"
-                              (string-append "./build/lib:"
-                                             (getenv "PYTHONPATH")))
                       (invoke "pytest" "-vv"
                               ;; Prevent running the flake8 and black
                               ;; pytest plugins, which only tests style
@@ -1471,9 +1454,6 @@ another XPath engine to find the matching elements in an XML or HTML document.")
      `(#:phases (modify-phases %standard-phases
                   (replace 'check
                     (lambda _
-                      (setenv "PYTHONPATH"
-                              (string-append "./build/lib:"
-                                             (getenv "PYTHONPATH")))
                       (invoke "pytest" "tests" "-vv"
                               ;; XXX: This fails with newer Pytest
                               ;; (upstream uses Pytest 3..).
@@ -2776,15 +2756,14 @@ authenticated session objects providing things like keep-alive.")
 (define-public python-urllib3
   (package
     (name "python-urllib3")
-    (version "1.26.2")
+    (version "1.26.4")
     (source
       (origin
         (method url-fetch)
         (uri (pypi-uri "urllib3" version))
         (sha256
          (base32
-          "024yldjwjavps39yb77sc422z8fa9bn20wcqrcncjwrqjab8y60r"))))
-    (replacement python-urllib3/fixed)
+          "0dw9w9bs3hmr5dp3r3h43jyzzb1g1046ag7lj8pqf58i4kvj3c77"))))
     (build-system python-build-system)
     (arguments `(#:tests? #f))
     (propagated-inputs
@@ -2803,18 +2782,6 @@ supports url redirection and retries, and also gzip and deflate decoding.")
     (properties `((python2-variant . ,(delay python2-urllib3))))
     (license license:expat)))
 
-(define python-urllib3/fixed
-  (package
-    (inherit python-urllib3)
-    (version "1.26.4")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "urllib3" version))
-       (sha256
-        (base32
-         "0dw9w9bs3hmr5dp3r3h43jyzzb1g1046ag7lj8pqf58i4kvj3c77"))))))
-
 ;; Some software requires an older version of urllib3, notably Docker.
 (define-public python-urllib3-1.24
   (package (inherit python-urllib3)
@@ -2976,8 +2943,6 @@ minimum of WSGI.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH" (string-append "./build/lib:"
-                                                 (getenv "PYTHONPATH")))
              (invoke "pytest" "-vv" "tests"))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)))
@@ -3010,8 +2975,6 @@ presume or force a developer to use a particular tool or library.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH" (string-append "./build/lib:"
-                                                 (getenv "PYTHONPATH")))
              (invoke "pytest" "-vv"))))))
     (propagated-inputs
      `(("python-flask-babel" ,python-flask-babel)
@@ -3785,13 +3748,9 @@ for Flask.")
                     (lambda _
                       ;; This test requires 'postcss' and 'babel' which are
                       ;; not yet available in Guix.
-                      (delete-file "tests/test_filters.py")
-                      #t))
+                      (delete-file "tests/test_filters.py")))
                   (replace 'check
                     (lambda _
-                      (setenv "PYTHONPATH"
-                              (string-append "./build/lib:"
-                                             (getenv "PYTHONPATH")))
                       (invoke "pytest" "-vv"))))))
     (native-inputs
      `(("python-jinja2" ,python-jinja2)
@@ -4559,7 +4518,8 @@ Python.")
        (sha256
         (base32 "0w22fapghmzk3xdasc4dn7h8sl58l08d1h5zbf72dh80drv1g9b9"))))
     (propagated-inputs
-     `(("python-unidecode" ,python-unidecode)))
+     `(("python-unidecode" ,python-unidecode)
+       ("python-text-unidecode" ,python-text-unidecode)))
     (arguments
      `(#:phases
        (modify-phases %standard-phases
@@ -4787,14 +4747,11 @@ event loop.  It is implemented in Cython and uses libuv under the hood.")
            (lambda _
              (invoke "make" "-C" "docs" "PAPER=a4" "html" "info")
              (delete-file "docs/build/texinfo/Makefile")
-             (delete-file "docs/build/texinfo/Gunicorn.texi")
-             #t))
+             (delete-file "docs/build/texinfo/Gunicorn.texi")))
          (replace 'check
            (lambda* (#:key tests? #:allow-other-keys)
              (if tests?
                  (begin
-                   (setenv "PYTHONPATH"
-                           (string-append ".:" (getenv "PYTHONPATH")))
                    (invoke "pytest" "-vv"
                            ;; Disable the geventlet tests because eventlet uses
                            ;; dnspython, which does not work in the build
@@ -5424,7 +5381,15 @@ files.")
          (base32
           "03s3ml6sbki24aajllf8aily0xzrn929zxi84p50zkkbikdd4raw"))))
     (build-system python-build-system)
-    (arguments '(#:tests? #f))  ; Tests not included in release tarball.
+    (arguments
+     '(#:tests? #f  ; Tests not included in release tarball.
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-websockets-package-name-requirement
+           (lambda* (#:key inputs #:allow-other-keys)
+             ;; Python package names use dot as separator.
+             (substitute* "setup.py"
+               (("websockets/extensions") "websockets.extensions")))))))
     (home-page "https://github.com/aaugustin/websockets")
     (synopsis
      "Python implementation of the WebSocket Protocol (RFC 6455 & 7692)")
diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 4b2ed02902..7f8764b672 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -53,7 +53,7 @@
 ;;; Copyright © 2018, 2019, 2020, 2021 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
 ;;; Copyright © 2018, 2019 Clément Lassieur <clement@lassieur.org>
-;;; Copyright © 2018, 2019, 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2018, 2019, 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2018 Luther Thompson <lutheroto@gmail.com>
 ;;; Copyright © 2018 Vagrant Cascadian <vagrant@debian.org>
 ;;; Copyright © 2015, 2018 Pjotr Prins <pjotr.guix@thebird.nl>
@@ -669,12 +669,7 @@ implementation for the Telegram Bot API.")
      `(#:phases (modify-phases %standard-phases
                   (replace 'check
                     (lambda _
-                      ;; Extend PYTHONPATH so the built package will be found.
-                      (setenv "PYTHONPATH"
-                              (string-append (getcwd) "/build/lib:"
-                                             (getenv "PYTHONPATH")))
-                      (invoke "pytest" "-p" "no:logging")
-                      #t)))))
+                      (invoke "pytest" "-p" "no:logging"))))))
     (home-page "https://github.com/borntyping/python-colorlog")
     (synopsis "Log formatting with colors for python")
     (description "The @code{colorlog.ColoredFormatter} is a formatter for use
@@ -1048,15 +1043,16 @@ by @code{binstar}, @code{binstar-build}, and @code{chalmers}.")
     (version "2.9.0")
     (source
      (origin
-      (method url-fetch)
-      (uri (pypi-uri "Babel" version))
-      (sha256
-       (base32
-        "018yg7g2pa6vjixx1nx41cfispgfi0azzp0a1chlycbj8jsil0ys"))))
+       (method url-fetch)
+       (uri (pypi-uri "Babel" version))
+       (sha256
+        (base32
+         "018yg7g2pa6vjixx1nx41cfispgfi0azzp0a1chlycbj8jsil0ys"))))
     (build-system python-build-system)
     (native-inputs
      `(("python-freezegun" ,python-freezegun)
-       ("python-pytest" ,python-pytest)))
+       ("python-pytest" ,python-pytest)
+       ("tzdata" ,tzdata-for-tests)))
     (propagated-inputs
      `(("python-pytz" ,python-pytz)))
     (arguments
@@ -1064,7 +1060,7 @@ by @code{binstar}, @code{binstar-build}, and @code{chalmers}.")
                   (replace 'check
                     (lambda _
                       (invoke "pytest" "-vv"))))))
-    (home-page "http://babel.pocoo.org/")
+    (home-page "https://babel.pocoo.org/")
     (synopsis
      "Tools for internationalizing Python applications")
     (description
@@ -1116,7 +1112,7 @@ and verifies that it matches the intended target hostname.")
     (build-system python-build-system)
     (native-inputs
      `(("python-coverage" ,python-coverage)
-       ("python-hypothesis" ,python-hypothesis-5.23) ; use_true_random=... from >=5.19.0
+       ("python-hypothesis" ,python-hypothesis)
        ("python-pre-commit" ,python-pre-commit)
        ("python-py" ,python-py)
        ("python-pytest" ,python-pytest)
@@ -1216,14 +1212,6 @@ Expressions are constructed from parsed strings or directly in Python.")
       (modify-phases %standard-phases
         (replace 'check
           (lambda _
-            ;; The 'runexamples' script sets PYTHONPATH to CWD, then goes
-            ;; on to import numpy. Somehow this works on their CI system.
-            ;; Let's just manage PYTHONPATH here instead.
-            (substitute* "runexamples.sh"
-              (("export PYTHONPATH=.*") ""))
-            (setenv "PYTHONPATH"
-                    (string-append (getcwd) ":"
-                                   (getenv "PYTHONPATH")))
             (invoke "./runexamples.sh")
             (invoke "nosetests" "-v"))))))
    (home-page "https://github.com/fhs/python-hdf4")
@@ -1796,9 +1784,6 @@ language.  It aims to be fast.")
      `(#:phases (modify-phases %standard-phases
                   (replace 'check
                     (lambda _
-                      (format #t "current working dir ~s~%" (getcwd))
-                      (setenv "PYTHONPATH"
-                              (string-append ".:" (getenv "PYTHONPATH")))
                       ;; We must run the test suite module directly, as it
                       ;; fails to define the 'tempdir' variable in scope for
                       ;; the tests otherwise
@@ -2323,14 +2308,14 @@ in the current session, Python, and the OS.")
 (define-public python-six
   (package
     (name "python-six")
-    (version "1.14.0")
+    (version "1.15.0")
     (source
      (origin
       (method url-fetch)
       (uri (pypi-uri "six" version))
       (sha256
        (base32
-        "02lw67hprv57hyg3cfy02y3ixjk3nzwc0dx3c4ynlvkfwkfdnsr3"))))
+        "0n82108wxn5giff50hd9ykjhd3zl7cndabdasi6568yvbh1rqqrh"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
@@ -2468,16 +2453,18 @@ audio playback capability for Python 3 on OSX, Windows, and Linux.")
 (define-public python-simplejson
   (package
     (name "python-simplejson")
-    (version "3.17.0")
+    (version "3.17.2")
     (source
      (origin
       (method url-fetch)
       (uri (pypi-uri "simplejson" version))
       (sha256
        (base32
-        "108yf3252fy4ndqab7h46raksxfhcn113bzy2yd8369vidrjnjrb"))))
+        "0hc8nqwdlll4a9cr1k9msn5kmb6kmbjirpgvhjh254nr4sgwgv3m"))))
     (build-system python-build-system)
-    (home-page "http://simplejson.readthedocs.org/en/latest/")
+    (native-inputs
+     `(("python-toml" ,python-toml)))
+    (home-page "https://simplejson.readthedocs.io/en/latest")
     (synopsis
      "Json library for Python")
     (description
@@ -3009,14 +2996,14 @@ server.")
 (define-public python-py
   (package
     (name "python-py")
-    (version "1.8.1")
+    (version "1.10.0")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "py" version))
        (sha256
         (base32
-         "1ajjazg3913n0sp3vjyva9c2qh5anx8ziryng935f89604a0h9sy"))))
+         "1lqvkqk3b440g9z82gqbzlzas84wrm6ir8kplzhzavmn2pd1pf11"))))
     (build-system python-build-system)
     (arguments
      ;; FIXME: "ImportError: 'test' module incorrectly imported from
@@ -3033,18 +3020,6 @@ server.")
 code introspection, and logging.")
     (license license:expat)))
 
-(define-public python-py-next
-  (package
-    (inherit python-py)
-    (version "1.9.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "py" version))
-       (sha256
-        (base32
-         "0hpk0gzd4v1pcnq7zinwg5n219czi23qghcswykqskkbwly8i9lw"))))))
-
 (define-public python2-py
   (package-with-python2 python-py))
 
@@ -3239,11 +3214,9 @@ interfaces.")
                                                  "cross-libc" "libc"))))
                (substitute* "src/click/_unicodefun.py"
                  (("'locale'")
-                  (string-append "'" glibc "/bin/locale'"))))
-             #t))
+                  (string-append "'" glibc "/bin/locale'"))))))
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH" (string-append "./src:" (getenv "PYTHONPATH")))
              (invoke "python" "-m" "pytest"))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)))
@@ -3359,8 +3332,6 @@ compare, diff, and patch JSON and JSON-like structures in Python.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda* (#:key inputs outputs #:allow-other-keys)
-             (add-installed-pythonpath inputs outputs)
-             (setenv "PYTHONPATH" (string-append ".:" (getenv "PYTHONPATH")))
              (invoke "trial" "jsonschema"))))))
     (native-inputs
      `(("python-setuptools_scm" ,python-setuptools-scm)
@@ -3511,9 +3482,6 @@ somewhat intelligible.")
      '(#:phases (modify-phases %standard-phases
                   (replace 'check
                     (lambda _
-                      (setenv "PYTHONPATH"
-                              (string-append "./build/lib:"
-                                             (getenv "PYTHONPATH")))
                       (invoke "pytest" "-vv"))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)))
@@ -3609,13 +3577,13 @@ JavaScript-like message boxes.  Types of dialog boxes include:
   (package
     (name "python-pympler")
     (home-page "https://pythonhosted.org/Pympler/")
-    (version "0.8")
+    (version "0.9")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "Pympler" version))
               (sha256
                (base32
-                "08mrpnb6cv2nvfncvr8a9a8bpwhnasa924anapnjvnaw5jcd4k7p"))))
+                "0ivfw2k86nbw9ck9swidl4422w7bhjldxwj90a4sy5r1cbgygjzj"))))
     (build-system python-build-system)
     (arguments
      `(#:phases (modify-phases %standard-phases
@@ -3676,7 +3644,8 @@ environments and back.")
          "0pm440pmpvgv5rbbnm8hk4qga5a292kvlm1bh3x2nwr8pb5p8xv0"))))
     (build-system python-build-system)
     (inputs
-     `(("libyaml" ,libyaml)))
+     `(("libyaml" ,libyaml)
+       ("python-cython" ,python-cython)))
     (home-page "https://pyyaml.org")
     (synopsis "YAML parser and emitter for Python")
     (description
@@ -3716,36 +3685,61 @@ e.g. filters, callbacks and errbacks can all be promises.")
 (define-public python-virtualenv
   (package
     (name "python-virtualenv")
-    (version "20.2.1")
+    (version "20.3.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "virtualenv" version))
        (sha256
         (base32
-         "1rd6wmymsgv0cdsn50jwybcvbbslzym3mzffcjbl42l8br9cgap0"))))
+         "1nbhnpzswcf3lmzn5xabmfdd7ki8r2w2i37y6wml54di6qi1l48c"))))
     (build-system python-build-system)
     (native-inputs
      `(("python-mock" ,python-mock)
        ("python-pytest" ,python-pytest)
-       ;; NOTE: guix lint remarks that "python-setuptools should probably not
-       ;; be an input at all". However, removing the input makes the build error:
-       ;; File "setup.py", line 4, in <module>
-       ;;   raise RuntimeError("setuptools >= 41 required to build")
-       ("python-setuptools" ,python-setuptools)
        ("python-setuptools-scm" ,python-setuptools-scm)))
     (propagated-inputs
      `(("python-appdirs" ,python-appdirs)
        ("python-distlib" ,python-distlib/next)
        ("python-filelock" ,python-filelock)
-       ("python-six" ,python-six)
-       ("python-importlib-metadata" ,python-importlib-metadata)))
+       ("python-six" ,python-six)))
     (home-page "https://virtualenv.pypa.io/")
     (synopsis "Virtual Python environment builder")
     (description
      "Virtualenv is a tool to create isolated Python environments.")
     (license license:expat)))
 
+(define-public python2-virtualenv
+  (let ((base (package-with-python2 (strip-python2-variant python-virtualenv))))
+    (package
+      (inherit base)
+      (arguments
+       `(#:python ,python-2
+         #:phases
+         (modify-phases %standard-phases
+           (add-after 'set-paths 'adjust-PYTHONPATH
+             (lambda* (#:key inputs #:allow-other-keys)
+               (let* ((python (assoc-ref inputs "python"))
+                      (python-sitedir (string-append python "/lib/python2.7"
+                                                     "/site-packages")))
+                 ;; XXX: 'python2' always comes first on PYTHONPATH
+                 ;; and shadows the 'setuptools' input.  Move python2
+                 ;; last: this should be fixed in python-build-system
+                 ;; in a future rebuild cycle.
+                 (setenv "PYTHONPATH"
+                         (string-append (string-join (delete python-sitedir
+                                                             (string-split
+                                                              (getenv "PYTHONPATH")
+                                                              #\:))
+                                                     ":")
+                                        ":" python-sitedir))
+                 (format #t "environment variable `PYTHONPATH' changed to `~a'~%"
+                         (getenv "PYTHONPATH"))
+                 #t))))))
+      (propagated-inputs
+       `(("python-contextlib2" ,python2-contextlib2)
+         ,@(package-propagated-inputs base))))))
+
 (define-public python-markupsafe
   (package
     (name "python-markupsafe")
@@ -3759,21 +3753,10 @@ e.g. filters, callbacks and errbacks can all be promises.")
          "0sqipg4fk7xbixqd8kq6rlkxj664d157bdwbh93farcphf92x1r9"))))
     (build-system python-build-system)
     (arguments
-     `(#:modules ((ice-9 ftw)
-                  (srfi srfi-1)
-                  (srfi srfi-26)
-                  (guix build utils)
-                  (guix build python-build-system))
-       #:phases (modify-phases %standard-phases
+     `(#:phases (modify-phases %standard-phases
                   (replace 'check
                     (lambda _
-                      (let ((cwd (getcwd))
-                            (libdir (find (cut string-prefix? "lib." <>)
-                                          (scandir "build"))))
-                      (setenv "PYTHONPATH"
-                              (string-append cwd "/build/" libdir ":"
-                                             (getenv "PYTHONPATH")))
-                      (invoke "pytest" "-vv")))))))
+                      (invoke "pytest" "-vv"))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)))
     (home-page "https://github.com/mitsuhiko/markupsafe")
@@ -3803,13 +3786,8 @@ for Python.")
                   (replace 'check
                     (lambda* (#:key tests? #:allow-other-keys)
                       (if tests?
-                          (begin
-                            (setenv "PYTHONPATH"
-                                    (string-append "./build/lib:"
-                                                   (getenv "PYTHONPATH")))
-                            (invoke "pytest" "-vv"))
-                          (format #t "test suite not run~%"))
-                      #t)))))
+                          (invoke "pytest" "-vv")
+                          (format #t "test suite not run~%")))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)))
     (propagated-inputs
@@ -4108,15 +4086,14 @@ text styles of documentation.")
 (define-public python-pygments
   (package
     (name "python-pygments")
-    (version "2.7.3")
+    (version "2.8.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "Pygments" version))
        (sha256
         (base32
-         "05mps9r966r3dpqw6zrs1nlwjdf5y4960hl9m7abwb3qyfnarwyc"))))
-    (replacement python-pygments/fixed)
+         "153zyxigm879sk2n71lfv03y2pgxb7dl0dlsbwkz9aydxnkf2mi6"))))
     (build-system python-build-system)
     (arguments
      ;; FIXME: Tests require sphinx, which depends on this.
@@ -4128,18 +4105,6 @@ text styles of documentation.")
     (license license:bsd-2)
     (properties `((python2-variant . ,(delay python2-pygments))))))
 
-(define python-pygments/fixed
-  (package
-    (inherit python-pygments)
-    (version "2.7.4")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "Pygments" version))
-       (sha256
-        (base32
-         "0dy35ry5qa8dpklk4fkj9kfpw2qb4mh5ha9866kw30wf96dx0jfz"))))))
-
 ;; Pygments 2.6 and later does not support Python 2.
 (define-public python2-pygments
   (let ((base (package-with-python2 (strip-python2-variant python-pygments))))
@@ -4346,8 +4311,7 @@ ecosystem, but can naturally be used also by other projects.")
                       ;;
                       ;; OverflowError: mktime argument out of range
                       (setenv "TZDIR"
-                              (string-append (assoc-ref inputs "tzdata")
-                                             "/share/zoneinfo"))
+                              (search-input-directory inputs "share/zoneinfo"))
                       (setenv "TZ" "Europe/Paris")
 
                       (invoke "python" "utest/run.py"))))))
@@ -4820,7 +4784,14 @@ matching of file paths.")
              (substitute* "tests/test_black.py"
                (("( *)def test_python38" match indent)
                 (string-append indent "@unittest.skip(\"guix\")\n" match)))
-             #t)))))
+             #t))
+         ;; Remove blackd, because it depends on python-aiohttp and
+         ;; python-aiohttp-cors.
+         (add-after 'unpack 'remove-entrypoint
+           (lambda _
+             (substitute* "setup.py"
+               (("\\s*\"blackd=blackd:patched_main \\[d\\]\",\n") "")
+                (("\"blackd\", ") "")))))))
     (propagated-inputs
      `(("python-click" ,python-click)
        ("python-attrs" ,python-attrs)
@@ -5310,11 +5281,11 @@ color scales, and color space conversion easy.  It has support for:
        ("pkg-config" ,pkg-config)
        ("python-sphinx" ,python-sphinx)
        ("python-numpydoc" ,python-numpydoc)
-       ("texlive" ,(texlive-union (list texlive-fonts-cm-super
+       ("texlive" ,(texlive-updmap.cfg (list texlive-fonts-cm-super
                                         texlive-fonts-ec
                                         texlive-generic-ifxetex
                                         texlive-generic-pdftex
-                                        texlive-amsfonts/patched
+                                        texlive-amsfonts
                                         texlive-latex-capt-of
                                         texlive-latex-cmap
                                         texlive-latex-environ
@@ -5376,7 +5347,7 @@ color scales, and color space conversion easy.  It has support for:
                     (sphinx-theme-checkout (assoc-ref inputs scipy-sphinx-theme))
                     (pyver ,(string-append "PYVER=")))
 
-               ;; FIXME: this is needed to for texlive-union to generate
+               ;; FIXME: this is needed to for texlive-updmap.cfg to generate
                ;; fonts, which are not found.
                (setenv "HOME" "/tmp")
 
@@ -5847,7 +5818,7 @@ toolkits.")
        ("python-ipykernel" ,python-ipykernel)
        ("python-mock" ,python-mock)
        ("graphviz" ,graphviz)
-       ("texlive" ,(texlive-union (list texlive-amsfonts/patched
+       ("texlive" ,(texlive-updmap.cfg (list texlive-amsfonts
                                         texlive-latex-amsmath
                                         texlive-latex-enumitem
                                         texlive-latex-expdlist
@@ -5873,9 +5844,7 @@ toolkits.")
          (replace 'build
            (lambda _
              (chdir "doc")
-             (setenv "PYTHONPATH"
-                     (string-append (getenv "PYTHONPATH")
-                                    ":" (getcwd) "/../examples/units"))
+             (setenv "PYTHONPATH" "../examples/units")
              (substitute* "conf.py"
                ;; Don't use git.
                (("^SHA = check_output.*")
@@ -5910,8 +5879,7 @@ toolkits.")
                           "./matplotlib-figures")
                  (invoke "makeinfo" "--no-split"
                          "-o" "matplotlib.info" "matplotlib.texi"))
-               (install-file "build/texinfo/matplotlib.info" info))
-             #t)))))
+               (install-file "build/texinfo/matplotlib.info" info)))))))
     (home-page (package-home-page python-matplotlib))
     (synopsis "Documentation for the python-matplotlib package")
     (description (package-description python-matplotlib))
@@ -6145,24 +6113,12 @@ Python code against some of the style conventions in
          "07ikq2c72kd263hpldw55y0px2l3g34hjk66ml9lryh1jv287qmf"))))
     (build-system python-build-system)
     (arguments
-     '(#:modules ((ice-9 ftw)
-                  (srfi srfi-1)
-                  (srfi srfi-26)
-                  (guix build utils)
-                  (guix build python-build-system))
-       #:phases (modify-phases %standard-phases
+     '(#:phases (modify-phases %standard-phases
                   (replace 'check
                     (lambda* (#:key tests? #:allow-other-keys)
                       (if tests?
-                          (begin
-                            (let ((libdir (find (cut string-prefix? "lib." <>)
-                                                (scandir "build"))))
-                              (setenv "PYTHONPATH"
-                                      (string-append "./build/" libdir ":"
-                                                     (getenv "PYTHONPATH")))
-                              (invoke "pytest" "-vv")))
-                          (format #t "test suite not run~%"))
-                      #t)))))
+                          (invoke "pytest" "-vv")
+                          (format #t "test suite not run~%")))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)
        ("python-pytest-cov" ,python-pytest-cov)))
@@ -6241,14 +6197,14 @@ by pycodestyle.")
 (define-public python-distlib
   (package
     (name "python-distlib")
-    (version "0.3.0")
+    (version "0.3.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "distlib" version ".zip"))
        (sha256
         (base32
-         "08fyi2r246733vharl2yckw20rilci28r91mzrnnvcr638inw5if"))))
+         "1wdzv7fsjhrkhh1wfkarlhcwa8m00mgcpdsvknmf2qy8f9l13xpd"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
@@ -6971,22 +6927,16 @@ support for Python 3 and PyPy.  It is based on cffi.")
                (("filenames = \\(library_filename,\\) \\+ filenames")
                 "pass")
                (("libcairo.so.2")
-                (string-append (assoc-ref inputs "cairo")
-                               "/lib/libcairo.so.2")))
+                (search-input-file inputs "/lib/libcairo.so.2")))
              (substitute* "cairocffi/pixbuf.py"
                (("libgdk_pixbuf-2.0.so.0")
-                (string-append (assoc-ref inputs "gdk-pixbuf")
-                               "/lib/libgdk_pixbuf-2.0.so.0"))
+                (search-input-file inputs "/lib/libgdk_pixbuf-2.0.so.0"))
                (("libgobject-2.0.so.0")
-                (string-append (assoc-ref inputs "glib")
-                               "/lib/libgobject-2.0.so.0"))
+                (search-input-file inputs "/lib/libgobject-2.0.so.0"))
                (("libglib-2.0.so.0")
-                (string-append (assoc-ref inputs "glib")
-                               "/lib/libglib-2.0.so.0"))
+                (search-input-file inputs "/lib/libglib-2.0.so.0"))
                (("libgdk-3.so.0")
-                (string-append (assoc-ref inputs "gtk+")
-                               "/lib/libgdk-3.so.0")))
-             #t))
+                (search-input-file inputs "/lib/libgdk-3.so.0")))))
          (add-after 'unpack 'disable-linters
            ;; Their check fails; none of our business.
            (lambda _
@@ -7025,13 +6975,13 @@ PNG, PostScript, PDF, and SVG file output.")
 (define-public python-decorator
   (package
     (name "python-decorator")
-    (version "4.3.0")
+    (version "4.4.2")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "decorator" version))
        (sha256
-        (base32 "0308djallnh00v112y5b7nadl657ysmkp6vc8xn51d6yzc9zm7n3"))))
+        (base32 "1rxzhk5zwiggk45hl53zydvy70lk654kg0nc1p54090p402jz9p3"))))
     (build-system python-build-system)
     (home-page "https://pypi.org/project/decorator/")
     (synopsis "Python module to simplify usage of decorators")
@@ -7283,13 +7233,13 @@ child application and control it as if a human were typing commands.")
 (define-public python-setuptools-scm
   (package
     (name "python-setuptools-scm")
-    (version "3.4.3")
+    (version "5.0.1")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "setuptools_scm" version))
               (sha256
                (base32
-                "083k93wi7mrmp1cn28hcbnr6sivbgls0y7zz2m5qzn1wg04a3f16"))))
+                "0ahlrxxkx2xhmxskx57gc96w3bdndflxx30304ihvm7ds136nny8"))))
     (build-system python-build-system)
     (home-page "https://github.com/pypa/setuptools_scm/")
     (synopsis "Manage Python package versions in SCM metadata")
@@ -8163,10 +8113,10 @@ computing.")
      `(("python-sphinx" ,python-sphinx)
        ("python-sphinx-rtd-theme" ,python-sphinx-rtd-theme)
        ;; FIXME: It's possible that a smaller union would work just as well.
-       ("texlive" ,(texlive-union (list texlive-amsfonts/patched
+       ("texlive" ,(texlive-updmap.cfg (list texlive-amsfonts
                                         texlive-fonts-ec
                                         texlive-generic-ifxetex
-                                        texlive-generic-pdftex
+                                        texlive-pdftex
                                         texlive-latex-capt-of
                                         texlive-latex-cmap
                                         texlive-latex-environ
@@ -9101,8 +9051,6 @@ Python 2 and Python 3.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH" (string-append "./build/lib:"
-                                                 (getenv "PYTHONPATH")))
              (invoke "py.test" "-v"))))))
     (native-inputs
      `(("python2-pytest" ,python2-pytest)))
@@ -9257,11 +9205,10 @@ PEP 8.")
         (method url-fetch)
         (uri (pypi-uri "pyflakes" version))
         (sha256
-          (base32
-            "1ny10364ciqh4ripasj4zzv4145l21l3s85m3qlrvfq5pk58xg7m"))))
+         (base32
+          "1ny10364ciqh4ripasj4zzv4145l21l3s85m3qlrvfq5pk58xg7m"))))
     (build-system python-build-system)
-    (home-page
-      "https://github.com/pyflakes/pyflakes")
+    (home-page "https://github.com/PyCQA/pyflakes")
     (synopsis "Passive checker of Python programs")
     (description
       "Pyflakes statically checks Python source code for common errors.")
@@ -9286,21 +9233,21 @@ PEP 8.")
     (name "python-mccabe")
     (version "0.6.1")
     (source
-      (origin
-        (method url-fetch)
-        (uri (pypi-uri "mccabe" version))
-        (sha256
-          (base32
-            "07w3p1qm44hgxf3vvwz84kswpsx6s7kvaibzrsx5dzm0hli1i3fx"))))
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "mccabe" version))
+       (sha256
+        (base32
+         "07w3p1qm44hgxf3vvwz84kswpsx6s7kvaibzrsx5dzm0hli1i3fx"))))
     (build-system python-build-system)
     (native-inputs
-      `(("python-pytest" ,python-pytest-bootstrap)
-        ("python-pytest-runner" ,python-pytest-runner)))
-    (home-page "https://github.com/flintwork/mccabe")
+     `(("python-toml", python-toml)
+       ("python-pytest" ,python-pytest-bootstrap)
+       ("python-pytest-runner" ,python-pytest-runner)))
+    (home-page "https://github.com/PyCQA/mccabe")
     (synopsis "McCabe checker, plugin for flake8")
-    (description
-      "This package provides a Flake8 plug-in to compute the McCabe cyclomatic
-complexity of Python source code.")
+    (description "This package provides a Flake8 plug-in to compute the McCabe
+cyclomatic complexity of Python source code.")
     (license license:expat)))
 
 (define-public python2-mccabe
@@ -9477,14 +9424,11 @@ unnecessary plus operators for explicit string literal concatenation.")
              (substitute* "setup.cfg"
                (("\\[pytest\\]")
                 "[tool:pytest]"))
-
-             (setenv "PYTHONPATH"
-                     (string-append (getcwd) "/build/lib:"
-                                    (getenv "PYTHONPATH")))
              (invoke "py.test" "-v"))))))
+    (propagated-inputs
+     `(("python-flake8" ,python-flake8)))
     (native-inputs
-     `(("python-flake8" ,python-flake8)
-       ("python-mock" ,python-mock)
+     `(("python-mock" ,python-mock)
        ("python-pep8" ,python-pep8)
        ("python-pycodestyle" ,python-pycodestyle)
        ("python-pytest" ,python-pytest)))
@@ -9523,14 +9467,14 @@ files.")
 (define-public python-flake8-pyi
   (package
     (name "python-flake8-pyi")
-    (version "20.5.0")
+    (version "20.10.0")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "flake8-pyi" version))
        (sha256
         (base32
-         "1zpq4s9kp8w95pccmhhyyx1ff2zhnidcf1zb3xs46lzcx9plvnzk"))))
+         "0b27n2pmrxcc7nva4wp2i7mrag0fnq0firvhg1ljq593a45b5qyf"))))
     (build-system python-build-system)
     (propagated-inputs
      `(("python-attrs" ,python-attrs)
@@ -9977,14 +9921,7 @@ third-party code.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (let ((cwd (getcwd)))
-               (setenv "PYTHONPATH"
-                       (string-append cwd "/build/"
-                                      (find (cut string-prefix? "lib" <>)
-                                            (scandir (string-append cwd "/build")))
-                                      ":"
-                                      (getenv "PYTHONPATH")))
-             (invoke "pytest" "-v" "test")))))))
+             (invoke "pytest" "-v" "test"))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)))
     (synopsis "MessagePack (de)serializer")
@@ -10647,6 +10584,7 @@ is binding LibSass.")
     (build-system python-build-system)
     (arguments
      `(#:tests? #f))          ;circular dependency with python-aiohttp
+    (propagated-inputs `(("python-idna" ,python-idna)))
     (home-page "https://github.com/aio-libs/idna-ssl")
     (synopsis "Patch @code{ssl.match_hostname} for Unicode(idna) domains support")
     (description "Patch @code{ssl.match_hostname} for Unicode(idna)
@@ -10963,7 +10901,7 @@ JSON Reference and JSON Pointer.")
         ("python-json-spec" ,python-json-spec)
         ("python-jsonschema" ,python-jsonschema)
         ("python-pylint" ,python-pylint)
-        ("python-pytest" ,python-pytest-6)
+        ("python-pytest" ,python-pytest)
         ("python-pytest-benchmark"
          ,python-pytest-benchmark)
         ("python-pytest-cache" ,python-pytest-cache)
@@ -11229,8 +11167,8 @@ time.")
        ("python-pytest" ,python-pytest)
        ("python-pytest-cov" ,python-pytest-cov)
        ("python-pytest-dependency" ,python-pytest-dependency)
-       ("texlive" ,(texlive-union (list texlive-adjustbox
-                                        texlive-amsfonts/patched
+       ("texlive" ,(texlive-updmap.cfg (list texlive-adjustbox
+                                        texlive-amsfonts
                                         texlive-booktabs
                                         texlive-caption
                                         texlive-eurosym
@@ -11821,14 +11759,15 @@ tables.")
 (define-public python-atomicwrites
   (package
     (name "python-atomicwrites")
-    (version "1.3.0")
+    (version "1.4.0")
     (source (origin
              (method url-fetch)
              (uri (pypi-uri "atomicwrites" version))
              (sha256
               (base32
-               "19ngcscdf3jsqmpcxn6zl5b6anmsajb6izp1smcd1n02midl9abm"))))
+               "0yla2svfhfqrcj8qbyqzx7wi4jy0dwcxvlkg0k3zjd54s5m3jw5f"))))
     (build-system python-build-system)
+    (arguments `(#:tests? #f))          ;avoid circular dependency with pytest
     (synopsis "Atomic file writes in Python")
     (description "Library for atomic file writes using platform dependent tools
 for atomic file system operations.")
@@ -12402,8 +12341,6 @@ text.")
                       #t))
                   (replace 'check
                     (lambda _
-                      (setenv "PYTHONPATH" (string-append "./build/lib:"
-                                                          (getenv "PYTHONPATH")))
                       (invoke "pytest" "-vv" "-m" "not network"
                               ;; These tests require Docker.
                               "-k" "not test_terminate_job \
@@ -13787,31 +13724,19 @@ syntax highlighting, markdown and more to the terminal.")
 (define-public python-magic
   (package
     (name "python-magic")
-    (version "0.4.15")
+    (version "0.4.22")
+    (home-page "https://github.com/ahupp/python-magic")
     (source
      (origin
-       (method url-fetch)
-       (uri (pypi-uri "python-magic" version))
+       (method git-fetch)
+       (uri (git-reference (url home-page) (commit version)))
+       (file-name (git-file-name name version))
        (sha256
         (base32
-         "1mgwig9pnzgkf86q9ji9pnc99bngms15lfszq5rgqb9db07mqxpk"))
-       (file-name (string-append name "-" version "-checkout"))))
+         "0zbdjr5shijs0jayz7gycpx0kn6v2bh83dpanyajk2vmy47jvbd6"))))
     (build-system python-build-system)
     (arguments
-     ;; The tests are unreliable, so don't run them.  The tests fail
-     ;; under Python3 because they were written for Python2 and
-     ;; contain import statements that do not work in Python3.  One of
-     ;; the tests fails under Python2 because its assertions are
-     ;; overly stringent; it relies on comparing output strings which
-     ;; are brittle and can change depending on the version of
-     ;; libmagic being used and the system on which the test is
-     ;; running.  In my case, under GuixSD 0.10.0, only one test
-     ;; failed, and it seems to have failed only because the version
-     ;; of libmagic that is packaged in Guix outputs a slightly
-     ;; different (but not wrong) string than the one that the test
-     ;; expected.
-     '(#:tests? #f
-       #:phases (modify-phases %standard-phases
+     '(#:phases (modify-phases %standard-phases
                   ;; Replace a specific method call with a hard-coded
                   ;; path to the necessary libmagic.so file in the
                   ;; store.  If we don't do this, then the method call
@@ -13821,24 +13746,22 @@ syntax highlighting, markdown and more to the terminal.")
                   (add-before 'build 'hard-code-path-to-libmagic
                     (lambda* (#:key inputs #:allow-other-keys)
                       (let ((file (assoc-ref inputs "file")))
-                        (substitute* "magic.py"
-                          (("ctypes.util.find_library\\('magic'\\)")
-                           (string-append "'" file "/lib/libmagic.so'")))
-                        #t)))
-                  (add-before 'install 'disable-egg-compression
-                    (lambda _
-                      (let ((port (open-file "setup.cfg" "a")))
-                        (display "\n[easy_install]\nzip_ok = 0\n"
-                                 port)
-                        (close-port port)
-                        #t))))))
+                        (substitute* "magic/loader.py"
+                          (("ctypes\\.util\\.find_library\\('magic'\\)")
+                           (string-append "'" file "/lib/libmagic.so'"))))))
+                  (replace 'check
+                    (lambda* (#:key tests? #:allow-other-keys)
+                      ;; The test suite mandates this variable.
+                      (setenv "LC_ALL" "en_US.UTF-8")
+                      (if tests?
+                          (invoke "python" "./test/test.py")
+                          (format #t "test suite not run~%")))))))
+    (native-inputs
+     `(("which" ,which)))
     (inputs
      ;; python-magic needs to be able to find libmagic.so.
      `(("file" ,file)))
-    (home-page
-     "https://github.com/ahupp/python-magic")
-    (synopsis
-     "File type identification using libmagic")
+    (synopsis "File type identification using libmagic")
     (description
      "This module uses ctypes to access the libmagic file type
 identification library.  It makes use of the local magic database and
@@ -14170,12 +14093,6 @@ module in Python 3.5 and later.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             ;; Upstream runs tests after installation and the package itself
-             ;; resides in a subdirectory. Extend PYTHONPATH so it will be
-             ;; found.
-             (setenv "PYTHONPATH"
-                     (string-append (getcwd) "/build/lib:"
-                                    (getenv "PYTHONPATH")))
              (invoke "py.test" "-vv" "tests" "README.rst"))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)
@@ -14338,13 +14255,6 @@ graphviz.")
                                     (string-join disabled-tests "\n")))))))
                   (replace 'check
                     (lambda _
-                      ;; Make sure the build directory is on PYTHONPATH.
-                      (setenv "PYTHONPATH"
-                              (string-append
-                               (getenv "PYTHONPATH") ":"
-                               (getcwd) "/build/"
-                               (car (scandir "build" (cut string-prefix? "lib." <>)))))
-
                       ;; Use the build daemons configured number of workers.
                       (setenv "NWORKERS" (number->string (parallel-job-count)))
 
@@ -14402,7 +14312,14 @@ format.")
                 "17d3hnxv9qndagzz63mdpyk99xj63p9gq586vjn0rxk8cl197nym"))))
     (build-system python-build-system)
     (arguments
-     '(#:tests? #f))                    ; FIXME: some tests fail
+     '(#:tests? #f                    ; FIXME: some tests fail
+       #:phases
+       (modify-phases %standard-phases
+         ;; Remove scripts, because they depend on [conch]
+         (add-after 'unpack 'remove-entrypoint
+           (lambda _
+             (substitute* "src/twisted/python/_setup.py"
+               (("\".+ = twisted\\.conch\\.scripts\\..+\",") "")))))))
     (propagated-inputs
      `(("python-zope-interface" ,python-zope-interface)
        ("python-pyhamcrest" ,python-pyhamcrest)
@@ -14965,17 +14882,15 @@ some degree most natural languages too.")
              (delete-file "libcst/tests/test_pyre_integration.py")
              (delete-file "libcst/codemod/tests/test_codemod_cli.py")
              (delete-file "libcst/metadata/tests/test_full_repo_manager.py")
-             (delete-file "libcst/metadata/tests/test_type_inference_provider.py")
-             #t))
+             (delete-file "libcst/metadata/tests/test_type_inference_provider.py")))
          (add-before 'check 'generate-test-data
            (lambda _
-             (setenv "PYTHONPATH" (string-append (getcwd) ":" (getenv "PYTHONPATH")))
              (invoke "python" "-m" "libcst.codegen.generate" "visitors")
              (invoke "python" "-m" "libcst.codegen.generate" "return_types")))
          (replace 'check
-           (lambda _
-             (invoke "python" "-m" "unittest")
-             #t)))))
+           (lambda* (#:key tests? #:allow-other-keys)
+             (when tests?
+               (invoke "python" "-m" "unittest")))))))
     (native-inputs
      `(("python-black" ,python-black)
        ("python-isort" ,python-isort)))
@@ -15000,6 +14915,14 @@ feels like an AST.")
                    ;; libcst/_add_slots.py
                    license:asl2.0))))
 
+(define-public python-libcst-minimal
+  (hidden-package
+   (package
+     (inherit python-libcst)
+     (name "python-libcst-minimal")
+     (arguments '(#:tests? #f))
+     (native-inputs '()))))
+
 (define-public python-typing-inspect
   (package
     (name "python-typing-inspect")
@@ -15009,7 +14932,8 @@ feels like an AST.")
               (uri (pypi-uri "typing_inspect" version))
               (sha256
                (base32
-                "1dzs9a1pr23dhbvmnvms2jv7l7jk26023g5ysf0zvnq8b791s6wg"))))
+                "1dzs9a1pr23dhbvmnvms2jv7l7jk26023g5ysf0zvnq8b791s6wg"))
+              (patches (search-patches "python-typing-inspect-fix.patch"))))
     (build-system python-build-system)
     (propagated-inputs
      `(("python-mypy-extensions" ,python-mypy-extensions)
@@ -15258,7 +15182,8 @@ YAML-serialized data.")
     (build-system python-build-system)
     (native-inputs
      `(("python-pytest" ,python-pytest)
-       ("python-nose" ,python-nose)))
+       ("python-nose" ,python-nose)
+       ("python-toml" ,python-toml)))
     (propagated-inputs
      `(("python-simplejson" ,python-simplejson)))
     (home-page "https://github.com/sdispater/backpack")
@@ -15570,9 +15495,7 @@ and/or Xon/Xoff.  The port is accessed in RAW mode.")
          (add-after 'patch-generated-file-shebangs 'set-sdl-paths
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "KIVY_SDL2_PATH"
-                     (string-append (assoc-ref inputs "sdl-union")
-                                    "/include/SDL2"))
-             #t)))))
+                     (search-input-directory inputs "/include/SDL2")))))))
     (native-inputs
      `(("pkg-config" ,pkg-config)
        ("python-cython" ,python-cython)))
@@ -15648,14 +15571,9 @@ binary or text.")
     (arguments
      `(#:phases
        (modify-phases %standard-phases
-         (add-before 'check 'set-pythonpath
+         (add-before 'check 'set-home
            (lambda _
-             (setenv "PYTHONPATH"
-                     (string-append
-                      (getcwd) "/src/"
-                      ":" (getenv "PYTHONPATH")))
-             (setenv "HOME" "")
-             #t)))))
+             (setenv "HOME" ""))))))
     (native-inputs
      `(("python-coverage" ,python-coverage)
        ("python-nose" ,python-nose)))
@@ -15803,8 +15721,6 @@ discovery, monitoring and configuration.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH" (string-append "./build/lib:"
-                                                 (getenv "PYTHONPATH")))
              (invoke "pytest" "-vv"))))))
     (build-system python-build-system)
     (native-inputs
@@ -15835,27 +15751,14 @@ Python to manipulate OpenDocument 1.2 files.")
                 "1ksqfai72dbcfbwx43pxl658j59mx2rvqypjy1fk0ax2qd6lccx6"))))
     (build-system python-build-system)
     (arguments
-     `(#:modules ((guix build utils)
-                  (guix build python-build-system)
-                  (srfi srfi-1)
-                  (srfi srfi-26)
-                  (ice-9 ftw))
-       #:phases
+     `(#:phases
        (modify-phases %standard-phases
          (add-before 'check 'set-cachedir
            ;; Tests require write access to $HOME by default
            (lambda _ (setenv "PYTHON_EGG_CACHE" "/tmp") #t))
          (replace 'check
            (lambda _
-             (let ((cwd (getcwd)))
-               (setenv "PYTHONPATH"
-                       (string-append
-                        cwd "/build/"
-                        (find (cut string-prefix? "lib" <>)
-                              (scandir (string-append cwd "/build")))
-                        ":"
-                        (getenv "PYTHONPATH")))
-               (invoke "pytest" "-v")))))))
+             (invoke "pytest" "-v"))))))
     (native-inputs
      `(("python-hypothesis" ,python-hypothesis)
        ("python-pytest-cov" ,python-pytest-cov)
@@ -16187,10 +16090,6 @@ is used by PostgreSQL and the OpenSSH Server for example.")
              (delete-file "tests/__init__.py")))
          (replace 'check
            (lambda _
-             ;; Extend PYTHONPATH so the built package will be found.
-             (setenv "PYTHONPATH"
-                     (string-append (getcwd) "/build/lib:"
-                                    (getenv "PYTHONPATH")))
              (invoke "py.test" "-vv" ))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)))
@@ -16219,16 +16118,6 @@ useful as a validator for JSON data.")
         (base32
          "090vdksbz341f7ljvr0zswblw4lspa8qaiikzyjkf318arpxmil9"))))
     (build-system python-build-system)
-    (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (add-before 'check 'set-pythonpath
-           (lambda _
-             (setenv "PYTHONPATH"
-                     (string-append
-                      (getcwd) "/test/"
-                      ":" (getenv "PYTHONPATH")))
-             #t)))))
     (home-page
      "https://github.com/eliben/pyelftools")
     (synopsis
@@ -16257,8 +16146,7 @@ Record Format (DWARF).")
        (modify-phases %standard-phases
          (add-after 'unpack 'patch
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((libev (string-append (assoc-ref inputs "libev")
-                                         "/lib/libev.so.4")))
+             (let ((libev (search-input-file inputs "/lib/libev.so.4")))
                (substitute* "setup.py"
                  (("libev_dll_name = find_library\\(\\\"ev\\\"\\)")
                   (string-append "libev_dll_name = \"" libev "\"")))))))))
@@ -16492,43 +16380,25 @@ possible on all supported Python versions.")
            "0ar5dqjnqaw0c17mymd6xgd81jn9br9fblawr0x438v1571bkaya"))))
     (build-system python-build-system)
     (arguments
-     `(#:modules ((guix build utils)
-                  (guix build python-build-system)
-                  (ice-9 ftw)
-                  (srfi srfi-1)
-                  (srfi srfi-26))
-       #:phases (modify-phases %standard-phases
+     `(#:phases (modify-phases %standard-phases
                   (add-after 'unpack 'use-absolute-python
                     (lambda _
                       (substitute* "Cheetah/CheetahWrapper.py"
                         (("#!/usr/bin/env python")
-                         (string-append "#!" (which "python"))))
-                      #t))
+                         (string-append "#!" (which "python"))))))
                   (add-after 'unpack 'fix-tests
                     (lambda _
                       (substitute* "Cheetah/Tests/ImportHooks.py"
                         (("os.path.dirname\\(__file__\\)")
-                         (string-append "'" (getcwd) "/Cheetah/Tests'")))
-                      #t))
+                         (string-append "'" (getcwd) "/Cheetah/Tests'")))))
                   (replace 'check
                     (lambda _
-                      (let ((cwd (getcwd)))
-                        (setenv "PYTHONPATH"
-                                (string-append
-                                 cwd "/build/"
-                                 (find (cut string-prefix? "lib" <>)
-                                       (scandir (string-append cwd "/build")))
-                                 ":" (getenv "PYTHONPATH")))
-                        (setenv "PATH"
-                                (string-append (getenv "PATH")
-                                               ":" cwd "/bin"))
-                        (setenv "TMPDIR" "/tmp")
-
-                        (substitute* "Cheetah/Tests/Test.py"
-                          (("unittest.TextTestRunner\\(\\)")
-                           "unittest.TextTestRunner(verbosity=2)"))
-
-                        (invoke "python" "Cheetah/Tests/Test.py")))))))
+                      (setenv "TMPDIR" "/tmp")
+                      (substitute* "Cheetah/Tests/Test.py"
+                        (("unittest.TextTestRunner\\(\\)")
+                         "unittest.TextTestRunner(verbosity=2)"))
+
+                      (invoke "python" "Cheetah/Tests/Test.py"))))))
     (propagated-inputs
      `(("python-markdown" ,python-markdown)))    ;optional
     (home-page "https://cheetahtemplate.org/")
@@ -16624,9 +16494,6 @@ protocols written in pure Python.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH"
-                     (string-append (getcwd) "/build/lib:"
-                                    (getenv "PYTHONPATH")))
              (invoke "python" "test/test_pbkdf2.py"))))))
     (propagated-inputs
      `(("python-pycrypto" ,python-pycrypto)))  ; optional
@@ -16962,7 +16829,15 @@ instead of servers and network commands.")
     ;; python-twisted depends on python-automat.  Twisted is optional, but the
     ;; tests fail if it is not available.  Also see
     ;; <https://github.com/glyph/automat/issues/71>.
-    (arguments '(#:tests? #f))
+    (arguments
+     `(#:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         ;; Remove script, because it depends on python-twisted.
+         (add-after 'unpack 'remove-entrypoint
+           (lambda _
+             (substitute* "setup.py"
+               (("\"automat-visualize = automat._visualize:tool\"") "")))))))
     (native-inputs
      `(("python-m2r" ,python-m2r)
        ("python-setuptools-scm" ,python-setuptools-scm)
@@ -17039,33 +16914,17 @@ and bit flag values.")
                 "1yzmwi5d197p0qhl7rl4xi9q1w8mk9i3zn6hrl22knbcrb1slspg"))))
     (build-system python-build-system)
     (arguments
-     `(#:modules ((guix build utils)
-                  (guix build python-build-system)
-                  (ice-9 ftw)
-                  (srfi srfi-1)
-                  (srfi srfi-26))
-       #:phases
-       (modify-phases %standard-phases
-         (replace 'check
-           (lambda* (#:key tests? #:allow-other-keys)
-             (when tests?
-               (let ((cwd (getcwd)))
-                 (setenv "PYTHONPATH"
-                         (string-append
-                          cwd "/build/"
-                          (find (cut string-prefix? "lib" <>)
-                                (scandir (string-append cwd "/build")))
-                          ":"
-                          (getenv "PYTHONPATH")))
-                 (invoke "python" "-m" "pytest"))))))))
+     `(#:phases (modify-phases %standard-phases
+                  (replace 'check
+                    (lambda* (#:key tests? #:allow-other-keys)
+                      (when tests?
+                        (invoke "pytest")))))))
     (native-inputs
      `(("python-coverage" ,python-coverage)
        ("python-hypothesis" ,python-hypothesis)
        ("python-pympler" ,python-pympler)
        ("python-pytest" ,python-pytest)
-       ("python-six" ,python-six)
-       ("python-sphinx" ,python-sphinx)
-       ("python-zope-interface" ,python-zope-interface)))
+       ("python-six" ,python-six)))
     (home-page "https://github.com/python-attrs/attrs/")
     (synopsis "Attributes without boilerplate")
     (description "@code{attrs} is a Python package with class decorators that
@@ -17080,13 +16939,6 @@ protocols.")
   (package
     (inherit python-attrs)
     (name "python-attrs-bootstrap")
-    (version "19.3.0")
-    (source (origin
-              (method url-fetch)
-              (uri (pypi-uri "attrs" version))
-              (sha256
-               (base32
-                "0wky4h28n7xnr6xv69p9z6kv8bzn50d10c3drmd9ds8gawbcxdzp"))))
     (native-inputs `())
     (arguments `(#:tests? #f))))
 
@@ -17192,35 +17044,34 @@ happens using the @code{logging} library.")
     (license license:gpl3+)))
 
 (define-public python-astroid
-  (package
-    (name "python-astroid")
-    (version "2.4.2")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "astroid" version))
-       (sha256
-        (base32 "00xp5gqxidxvgg1bwd91myqzdf2fpb9cjwbdl3p7gwqvlk17hh1g"))
-       (modules '((guix build utils)))
-       (snippet
-        '(begin
-           ;; Check to see if the version pinning has been removed.
-           (substitute* "astroid/__pkginfo__.py"
-             (("==1\\.4\\.\\*") ">=1.4.0"))
-           #t))))
-    (build-system python-build-system)
-    (propagated-inputs
-     `(("python-lazy-object-proxy" ,python-lazy-object-proxy)
-       ("python-six" ,python-six)
-       ("python-wrapt" ,python-wrapt)))
-    (native-inputs
-     `(("python-dateutil" ,python-dateutil)
-       ("python-pytest" ,python-pytest)
-       ("python-pytest-runner" ,python-pytest-runner)))
-    (home-page "https://github.com/PyCQA/astroid")
-    (synopsis "Common base representation of python source code for pylint and
+  (let ((revision "1")
+        (commit "5f67396894c79c4661e357ec8bb03aa134a51109"))
+    (package
+      (name "python-astroid")
+      (version (git-version "2.4.2" revision commit))
+      (source
+       (origin
+         ;; The current 2.4.2 release doesn't support Python 3.9.
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/PyCQA/astroid")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "1ir5716wqgz39jva7x9chhjy41yi3n7fkymb8snh5giwig8kyipk"))))
+      (build-system python-build-system)
+      (propagated-inputs
+       `(("python-lazy-object-proxy" ,python-lazy-object-proxy)
+         ("python-six" ,python-six)
+         ("python-wrapt" ,python-wrapt)))
+      (native-inputs
+       `(("python-dateutil" ,python-dateutil)
+         ("python-pytest" ,python-pytest)
+         ("python-pytest-runner" ,python-pytest-runner)))
+      (home-page "https://github.com/PyCQA/astroid")
+      (synopsis "Common base representation of python source code for pylint and
 other projects")
-    (description "@code{python-astroid} provides a common base representation
+      (description "@code{python-astroid} provides a common base representation
 of python source code for projects such as pychecker, pyreverse, pylint, etc.
 
 It provides a compatible representation which comes from the _ast module.  It
@@ -17229,8 +17080,8 @@ down the AST and building an extended ast.  The new node classes have
 additional methods and attributes for different usages.  They include some
 support for static inference and local name scopes.  Furthermore, astroid
 builds partial trees by inspecting living objects.")
-    (license license:lgpl2.1+)
-    (properties `((python2-variant . ,(delay python2-astroid))))))
+      (license license:lgpl2.1+)
+      (properties `((python2-variant . ,(delay python2-astroid)))))))
 
 (define-public python2-astroid
   (let ((base (package-with-python2
@@ -17291,23 +17142,77 @@ version, is suitable to be include as a dependency in other projects.")
 (define-public python-isort
   (package
     (name "python-isort")
-    (version "4.3.4")
+    (version "5.7.0")
     (source
      (origin
        (method git-fetch)
        (uri (git-reference
-              ;; Tests pass only from the Github sources
-              (url "https://github.com/timothycrosley/isort")
-              (commit version)))
+             ;; Tests pass only from the Github sources
+             (url "https://github.com/timothycrosley/isort")
+             (commit version)))
        (file-name (git-file-name name version))
+       (modules '((guix build utils)))
+       (snippet '(for-each delete-file (find-files "." "\\.whl$")))
        (sha256
         (base32
-         "1q0mlrpki5vjbgwxag5rghljjcfg7mvb0pbkwid80p0sqrxlm2p6"))))
+         "0phq4s911mjjdyr5h5siz93jnpkqb2qgphgcfk6axncgxr8i7vi1"))))
     (build-system python-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         ;; A foretaste of what our future python-build-system will need to
+         ;; do.
+         (replace 'build
+           (lambda _
+             (invoke "python" "-m" "build" "--wheel" "--no-isolation" ".")))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out"))
+                   (whl (car (find-files "dist" "\\.whl$"))))
+               (invoke "pip" "--no-cache-dir" "--no-input"
+                       "install" "--no-deps" "--prefix" out whl))))
+         (add-after 'install 'install-example-plugins
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               ;; Patch to use the core poetry API.
+               (substitute* '("example_isort_formatting_plugin/pyproject.toml"
+                              "example_shared_isort_profile/pyproject.toml")
+                 (("poetry>=0.12")
+                  "poetry-core>=1.0.0")
+                 (("poetry.masonry.api")
+                  "poetry.core.masonry.api"))
+               ;; Build the example plugins.
+               (for-each (lambda (source-directory)
+                           (invoke "python" "-m" "build" "--wheel"
+                                   "--no-isolation" "--outdir=dist"
+                                   source-directory))
+                         '("example_isort_formatting_plugin"
+                           "example_shared_isort_profile"))
+               ;; Install them to temporary storage, for the test.
+               (setenv "HOME" (getcwd))
+               (let ((example-whls (find-files "dist" "^example.*\\.whl$")))
+                 (apply invoke "pip" "--no-cache-dir" "--no-input"
+                        "install"  "--user" "--no-deps" example-whls)))))
+         (replace 'check
+           (lambda* (#:key tests? inputs outputs #:allow-other-keys)
+             (when tests?
+               (let ((bin (string-append (assoc-ref outputs "out") "/bin")))
+                 (setenv "PATH" (string-append (getenv "PATH") ":" bin)))
+               (add-installed-pythonpath inputs outputs)
+               (invoke "pytest" "-vv" "tests/unit/"
+                       "--ignore=tests/unit/test_deprecated_finders.py")))))))
     (native-inputs
-     `(("python-mock" ,python-mock)
+     `(("git" ,git-minimal)
+       ("python-black" ,python-black)
+       ("python-colorama" ,python-colorama)
+       ("python-hypothesmith" ,python-hypothesmith)
+       ("python-libcst" ,python-libcst-minimal)
+       ("python-poetry-core" ,python-poetry-core)
+       ("python-pylama" ,python-pylama)
+       ("python-pypa-build" ,python-pypa-build)
+       ("python-pytest-mock" ,python-pytest-mock)
        ("python-pytest" ,python-pytest)))
-    (home-page "https://github.com/timothycrosley/isort")
+    (home-page "https://github.com/PyCQA/isort")
     (synopsis "Python utility/library to sort python imports")
     (description "@code{python-isort} is a python utility/library to sort
 imports alphabetically, and automatically separated into sections.  It
@@ -17712,9 +17617,6 @@ of corner cases, factory_boy allows you to use objects customized for the
 current test, while only declaring the test-specific fields")
     (license license:expat)))
 
-(define-public python2-factory-boy
-  (package-with-python2 python-factory-boy))
-
 (define-public python-translate-toolkit
   (package
     (name "python-translate-toolkit")
@@ -17804,10 +17706,17 @@ information.")
    (package/inherit
     python-packaging
     (name "python-packaging-bootstrap")
+    (arguments
+      (substitute-keyword-arguments (package-arguments python-packaging)
+        ((#:phases phases)
+         `(modify-phases ,phases
+            (add-after 'unpack 'fix-dependencies
+              (lambda* (#:key tests? #:allow-other-keys)
+                (substitute* "setup.py" (("\"six\"") ""))))))
+         ((#:tests? _ #f) #f)))
     (native-inputs '())
     (propagated-inputs
-     `(("python-pyparsing" ,python-pyparsing)))
-    (arguments '(#:tests? #f)))))
+     `(("python-pyparsing" ,python-pyparsing))))))
 
 (define-public python2-packaging-bootstrap
   (hidden-package
@@ -17816,7 +17725,8 @@ information.")
     (name "python2-packaging-bootstrap")
     (native-inputs '())
     (propagated-inputs
-     `(("python-pyparsing" ,python2-pyparsing)))
+     `(("python-pyparsing" ,python2-pyparsing)
+       ("python-six" ,python2-six-bootstrap)))
     (arguments
      `(#:tests? #f
        ,@(package-arguments python2-packaging))))))
@@ -17862,6 +17772,13 @@ for more filetypes can be easily added by creating plugins for them.")
     (build-system python-build-system)
     (arguments
      `(#:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'relax-requirements
+                    (lambda _
+                      (substitute* "setup.py"
+                        ((".*'future'.*")
+                         "")
+                        (("colorama==0.4.1")
+                         "colorama>=0.4.1"))))
                   (replace 'check
                     (lambda _
                       (invoke "python" "radon/tests/run.py"))))))
@@ -18095,23 +18012,11 @@ applying JSON Patches according to RFC 6902.")
                 "17dvx15m3r49bmif5zlli8kzjd6bys6psixzbp14sd5367d9h8qi"))))
     (build-system python-build-system)
     (arguments
-     `(#:modules ((guix build utils)
-                  (guix build python-build-system)
-                  (ice-9 ftw)
-                  (srfi srfi-1)
-                  (srfi srfi-26))
-       #:phases
+     `(#:phases
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (let ((cwd (getcwd)))
-               (setenv "PYTHONPATH"
-                       (string-append cwd "/build/"
-                                      (find (cut string-prefix? "lib" <>)
-                                            (scandir (string-append cwd "/build")))
-                                      ":"
-                                      (getenv "PYTHONPATH")))
-             (invoke "pytest" "-v")))))))
+             (invoke "pytest" "-v"))))))
     (native-inputs
      `(("python-pytest" ,python-pytest)))
     (home-page "https://rfc3986.readthedocs.io/")
@@ -18433,19 +18338,13 @@ complex datatypes to and from native Python datatypes.")
     (build-system python-build-system)
     (arguments
      '(#:phases (modify-phases %standard-phases
-                  (add-after 'unpack 'disable-prance-tests
-                    (lambda _
-                      ;; Disable validation tests since they require the
-                      ;; optional 'prance' library which is not yet in Guix.
-                      (substitute* "tests/test_ext_marshmallow_openapi.py"
-                        (("def test_openapi_tools_validate.*" all)
-                         (string-append "@pytest.mark.xfail\n" all)))))
                   (replace 'check
                     (lambda _
-                      (setenv "PYTHONPATH"
-                              (string-append "./build/lib:"
-                                             (getenv "PYTHONPATH")))
-                      (invoke "pytest" "-vv"))))))
+                      (invoke "pytest" "-vv"
+                              ;; Disable validation tests since they require
+                              ;; the optional 'prance' library which is not
+                              ;; yet in Guix.
+                              "-k" "not openapi_tools_validate"))))))
     (propagated-inputs
      `(("python-pyyaml" ,python-pyyaml)))
     (native-inputs
@@ -18480,9 +18379,6 @@ as Swagger.")
              (substitute* "Makefile"
                (("flake8 flasgger --ignore=F403")
                 "flake8 flasgger --ignore=E731,F403"))
-             (setenv "PYTHONPATH" (string-append (getcwd)
-                                                 ":"
-                                                 (getenv "PYTHONPATH")))
              (invoke "py.test"))))))
     (propagated-inputs
      `(("python-flask" ,python-flask)
@@ -18869,25 +18765,26 @@ ignoring formatting changes.")
 (define-public python-tqdm
   (package
     (name "python-tqdm")
-    (version "4.43.0")
+    (version "4.60.0")
     (source
       (origin
         (method url-fetch)
         (uri (pypi-uri "tqdm" version))
          (sha256
            (base32
-             "093v4c2x5hpigv47zvyxl8wh10y2yd2gvz3l9vchn0zsp8hv2pzk"))))
+             "1bjpy4mjg6ryp0ijvqi77vgs76l5hh3zrv3x4vmcwxrlbswvvppb"))))
     (build-system python-build-system)
     (arguments
      '(#:phases (modify-phases %standard-phases
                   (replace 'check
-                    (lambda* (#:key inputs outputs #:allow-other-keys)
-                      (add-installed-pythonpath inputs outputs)
-                      ;; This invokation is taken from tox.ini.
-                      (invoke "nosetests" "--ignore-files=\"test_perf.py\""
-                              "-d" "-v" "tqdm/"))))))
+                    (lambda _
+                      (invoke "pytest" "-vv" "-k" "not perf"))))))
     (native-inputs
-     `(("python-nose" ,python-nose)))
+     `(("python-pytest" ,python-pytest)
+       ("python-pytest-asyncio" ,python-pytest-asyncio)
+       ("python-pytest-timeout" ,python-pytest-timeout)
+       ("python-setuptools-scm" ,python-setuptools-scm)
+       ("python-toml" ,python-toml)))
     (home-page "https://github.com/tqdm/tqdm")
     (synopsis "Fast, extensible progress meter")
     (description
@@ -19011,7 +18908,8 @@ lines are read from a single file.")
     (native-inputs
      `(("python-pbr" ,python-pbr-minimal)))
     (propagated-inputs
-      `(("python-linecache2" ,python-linecache2)))
+      `(("python-linecache2" ,python-linecache2)
+        ("python-six" ,python-six)))
     (home-page
       "https://github.com/testing-cabal/traceback2")
     (synopsis "Backports of the traceback module")
@@ -19951,7 +19849,7 @@ source bytes using the UTF-8 encoding and then rewrites Python 3.6 style
 (define-public python-typed-ast
   (package
     (name "python-typed-ast")
-    (version "1.4.0")
+    (version "1.4.2")
     (source
      (origin
        (method git-fetch)
@@ -19959,28 +19857,15 @@ source bytes using the UTF-8 encoding and then rewrites Python 3.6 style
              (url "https://github.com/python/typed_ast")
              (commit version)))
        (sha256
-        (base32 "0l0hz809f7i356kmqkvfsaswiidb98j9hs9rrjnfawzqcbffzgyb"))
+        (base32 "1wr6pkvvrq6rzjjw88pd5xy8fy06msam4hlxbkglvdmwh4c083l0"))
        (file-name (git-file-name name version))))
     (build-system python-build-system)
     (arguments
-     `(#:modules ((guix build utils)
-                  (guix build python-build-system)
-                  (ice-9 ftw)
-                  (srfi srfi-1)
-                  (srfi srfi-26))
-       #:phases
+     `(#:phases
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (let ((cwd (getcwd)))
-               (setenv "PYTHONPATH"
-                       (string-append cwd "/build/"
-                                      (find (cut string-prefix? "lib" <>)
-                                            (scandir (string-append cwd "/build")))
-                                      ":"
-                                      (getenv "PYTHONPATH"))))
-             (invoke "pytest")
-             #t)))))
+             (invoke "pytest"))))))
     (native-inputs `(("python-pytest" ,python-pytest)))
     (home-page "https://github.com/python/typed_ast")
     (synopsis "Fork of Python @code{ast} modules with type comment support")
@@ -20686,8 +20571,7 @@ user-space file systems in Python.")
                (("pytest < 5") "pytest < 7"))
              ;; We don't care about a coverage report.
              (substitute* "test/requirements.txt"
-               (("coverage.*") "coverage\n"))
-             #t))
+               (("coverage.*") "coverage\n"))))
          (replace 'check
            (lambda* (#:key tests? #:allow-other-keys)
              (when tests?
@@ -20695,11 +20579,7 @@ user-space file systems in Python.")
                (delete-file "test/test_js_client.py")
                (delete-file "test/test_tsd_types.py")
                (delete-file "test/test_python_gen.py")
-               (setenv "PYTHONPATH"
-                       (string-append (getcwd) ":"
-                                      (getenv "PYTHONPATH")))
-               (invoke "pytest"))
-             #t)))))
+               (invoke "pytest")))))))
     (propagated-inputs
      `(("python-ply" ,python-ply)
        ("python-six" ,python-six)))
@@ -21511,13 +21391,6 @@ data.")
     (arguments
      '(#:phases
        (modify-phases %standard-phases
-         (add-before 'check 'do-not-override-PYTHONPATH
-           (lambda _
-             ;; Append to PYTHONPATH instead of overriding it so
-             ;; that dependencies from Guix can be found.
-             (substitute* "tests/testutils.py"
-               (("env\\['PYTHONPATH'\\] = pythonpath")
-                "env['PYTHONPATH'] += os.pathsep + pythonpath"))))
          (replace 'check
            (lambda* (#:key tests? #:allow-other-keys)
              (if tests?
@@ -22997,8 +22870,6 @@ essential tools are located.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH"
-                     (string-append (getcwd) ":" (getenv "PYTHONPATH")))
              (invoke "python" "./tests/__main__.py"))))))
     (propagated-inputs
      `(("python-dill" ,python-dill)
@@ -24538,8 +24409,7 @@ be necessary when using @code{cmd}.")
        (modify-phases %standard-phases
          (add-before 'build 'qualify-libtidy
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((libtidy (string-append (assoc-ref inputs "tidy")
-                                           "/lib/libtidy.so")))
+             (let ((libtidy (search-input-file inputs "/lib/libtidy.so")))
                (substitute* "tidylib/tidy.py"
                  (("ctypes\\.util\\.find_library\\('tidy'\\)")
                   (format #f "'~a'" libtidy)))
@@ -24925,9 +24795,8 @@ It adds a simple and readable way to print stuff during development.")
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "TZ" "UTC")
              (setenv "TZDIR"
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo"))
-             #t)))))
+                     (search-input-directory inputs
+                                             "share/zoneinfo")))))))
     (home-page "https://github.com/scrapinghub/dateparser")
     (synopsis
      "Date parsing library designed to parse dates from HTML pages")
@@ -25045,7 +24914,7 @@ By default it uses the open Python vulnerability database Safety DB.")
     (propagated-inputs
      `(("wheel" ,python-wheel)))
     (native-inputs
-     `(("texlive" ,(texlive-union (list texlive-amsfonts/patched
+     `(("texlive" ,(texlive-updmap.cfg (list texlive-amsfonts
                                         texlive-fonts-ec
                                         texlive-latex-hyperref
                                         texlive-latex-oberdiek
@@ -25060,8 +24929,6 @@ By default it uses the open Python vulnerability database Safety DB.")
              (substitute* "tests.py"
                (("test_basic_conversion_from_http_url")
                 "skip_test_basic_conversion_from_http_url"))
-             ;; Needed by texlive-union to generate fonts
-             (setenv "HOME" "/tmp")
              #t)))))
     (home-page "https://github.com/bebraw/pypandoc")
     (synopsis "Python wrapper for pandoc")
diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index e694321e17..9e637a03d0 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2014, 2015, 2016 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2014, 2015 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014, 2017, 2019 Eric Bavier <bavier@member.fsf.org>
@@ -26,13 +26,13 @@
 ;;; Copyright © 2016, 2017 Nikita <nikita@n0.is>
 ;;; Copyright © 2016 Dylan Jeffers <sapientech@sapientech@openmailbox.org>
 ;;; Copyright © 2016 David Craven <david@craven.ch>
-;;; Copyright © 2016, 2017, 2018, 2019, 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2016, 2017, 2018, 2019, 2020, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2016, 2017 Stefan Reichör <stefan@xsteve.at>
 ;;; Copyright © 2016 Dylan Jeffers <sapientech@sapientech@openmailbox.org>
 ;;; Copyright © 2016, 2017 Alex Vong <alexvong1995@gmail.com>
 ;;; Copyright © 2016, 2017, 2018 Arun Isaac <arunisaac@systemreboot.net>
-;;; Copyright © 2016, 2017, 2018 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2016–2018, 2021 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2016, 2017, 2018, 2021 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2016, 2017 Thomas Danckaert <post@thomasdanckaert.be>
 ;;; Copyright © 2017 Carlo Zancanaro <carlo@zancanaro.id.au>
 ;;; Copyright © 2017 Frederick M. Muriithi <fredmanglis@gmail.com>
@@ -54,12 +54,12 @@
 ;;; Copyright © 2018 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
 ;;; Copyright © 2018 Clément Lassieur <clement@lassieur.org>
-;;; Copyright © 2018, 2019 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2018, 2019, 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2018 Luther Thompson <lutheroto@gmail.com>
 ;;; Copyright © 2018 Vagrant Cascadian <vagrant@debian.org>
 ;;; Copyright © 2019 Tanguy Le Carrour <tanguy@bioneland.org>
 ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
-;;; Copyright © 2021 Greg Hogan <code@greghogan.com>
+;;; Copyright © 2020, 2021 Greg Hogan <code@greghogan.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -96,68 +96,104 @@
   #:use-module (gnu packages tcl)
   #:use-module (gnu packages tls)
   #:use-module (gnu packages xml)
+  #:use-module (guix gexp)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix utils)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system trivial)
   #:use-module (srfi srfi-1)
-  #:use-module (srfi srfi-26))
+  #:use-module (srfi srfi-26)
+
+  #:export (customize-site
+            guix-pythonpath-search-path))
+
+(define* (customize-site version)
+  "Generate a install-sitecustomize.py phase, using VERSION."
+  `(lambda* (#:key native-inputs inputs outputs #:allow-other-keys)
+     (let* ((out (assoc-ref outputs "out"))
+            (site-packages (string-append
+                            out "/lib/python"
+                            ,(version-major+minor version)
+                            "/site-packages"))
+            (sitecustomize.py (assoc-ref (or native-inputs inputs)
+                                         "sitecustomize.py"))
+            (dest (string-append site-packages "/sitecustomize.py")))
+       (mkdir-p site-packages)
+       (copy-file sitecustomize.py dest)
+       ;; Set the correct permissions on the installed file, else the byte
+       ;; compilation phase fails with a permission denied error.
+       (chmod dest #o644))))
+
+(define (guix-pythonpath-search-path version)
+  "Generate a GUIX_PYTHONPATH search path specification, using VERSION."
+  (search-path-specification (variable "GUIX_PYTHONPATH")
+                             (files (list (string-append
+                                           "lib/python"
+                                           (version-major+minor version)
+                                           "/site-packages")))))
 
 (define-public python-2.7
   (package
     (name "python2")
-    (version "2.7.17")
+    (version "2.7.18")
     (source
      (origin
-      (method url-fetch)
-      (uri (string-append "https://www.python.org/ftp/python/"
-                          version "/Python-" version ".tar.xz"))
-      (sha256
-       (base32
-        "0hds28cg226m8j8sr394nm9yc4gxhvlv109w0avsf2mxrlrz0hsd"))
-      (patches (search-patches "python-2.7-search-paths.patch"
-                               "python-2-deterministic-build-info.patch"
-                               "python-2.7-site-prefixes.patch"
-                               "python-2.7-source-date-epoch.patch"
-                               "python-2.7-adjust-tests.patch"
-                               "python-cross-compile.patch"
-                               "python-2.7-CVE-2021-3177.patch"))
-      (modules '((guix build utils)))
-      (snippet
-       '(begin
-          ;; Ensure the bundled copies of these libraries are not used.
-          (for-each delete-file-recursively
-                    '("Modules/_ctypes/libffi" "Modules/expat" "Modules/zlib"))
+       (method url-fetch)
+       (uri (string-append "https://www.python.org/ftp/python/"
+                           version "/Python-" version ".tar.xz"))
+       (sha256
+        (base32
+         "0hzgxl94hnflis0d6m4szjx0b52gah7wpmcg5g00q7am6xwhwb5n"))
+       (patches (search-patches "python-2.7-search-paths.patch"
+                                "python-2-deterministic-build-info.patch"
+                                "python-2.7-site-prefixes.patch"
+                                "python-2.7-source-date-epoch.patch"
+                                "python-2.7-adjust-tests.patch"
+                                "python-cross-compile.patch"
+                                "python-2.7-CVE-2021-3177.patch"
+                                "python-2.7-no-static-lib.patch"))
+       (modules '((guix build utils)))
+       (snippet
+        '(begin
+           ;; Ensure the bundled copies of these libraries are not used.
+           (for-each delete-file-recursively
+                     '("Modules/_ctypes/libffi" "Modules/expat" "Modules/zlib"))
 
-          (substitute* "Modules/Setup.dist"
-            ;; Link Expat instead of embedding the bundled one.
-            (("^#pyexpat.*") "pyexpat pyexpat.c -lexpat\n"))
+           (substitute* "Modules/Setup.dist"
+             ;; Link Expat instead of embedding the bundled one.
+             (("^#pyexpat.*") "pyexpat pyexpat.c -lexpat\n"))
 
-          ;; Suboptimal to delete failing tests here, but if we delete them in
-          ;; the arguments then we need to make sure to strip out that phase
-          ;; when it gets inherited by python and python-minimal.
-          (for-each delete-file
-                    '("Lib/test/test_compileall.py"
-                      "Lib/test/test_ctypes.py" ; fails on mips64el
-                      "Lib/test/test_distutils.py"
-                      "Lib/test/test_import.py"
-                      "Lib/test/test_shutil.py"
-                      "Lib/test/test_socket.py"
-                      "Lib/test/test_subprocess.py"))
-          #t))))
+           ;; Suboptimal to delete failing tests here, but if we delete them in
+           ;; the arguments then we need to make sure to strip out that phase
+           ;; when it gets inherited by python and python-minimal.
+           (for-each delete-file
+                     '("Lib/test/test_compileall.py"
+                       "Lib/test/test_ctypes.py" ; fails on mips64el
+                       "Lib/test/test_distutils.py"
+                       "Lib/test/test_import.py"
+                       "Lib/test/test_shutil.py"
+                       "Lib/test/test_socket.py"
+                       "Lib/test/test_subprocess.py"))))))
     (outputs '("out"
-               "tk"))                     ;tkinter; adds 50 MiB to the closure
+               "tk"                     ;tkinter; adds 50 MiB to the closure
+               "idle"))                 ;programming environment; weighs 5MB
     (build-system gnu-build-system)
     (arguments
      `(#:test-target "test"
        #:configure-flags
-       (list "--enable-shared"                    ;allow embedding
-             "--with-system-expat"                ;for XML support
-             "--with-system-ffi"                  ;build ctypes
-             "--with-ensurepip=install"           ;install pip and setuptools
+       (list "--enable-shared"          ;allow embedding
+             "--with-system-expat"      ;for XML support
+             "--with-system-ffi"        ;build ctypes
+             "--with-ensurepip=install" ;install pip and setuptools
+             "--with-computed-gotos"    ;main interpreter loop optimization
              "--enable-unicode=ucs4"
 
+             ;; FIXME: These flags makes Python significantly faster, but
+             ;; leads to non-reproducible binaries.
+             ;; "--with-lto"               ;increase size by 20MB, but 15% speedup
+             ;; "--enable-optimizations"
+
              ;; Prevent the installed _sysconfigdata.py from retaining a reference
              ;; to coreutils.
              "INSTALL=install -c"
@@ -170,8 +206,13 @@
                      "ac_cv_file__dev_ptmx=no"
                      "ac_cv_file__dev_ptc=no")
                    '())
+             ;; -fno-semantic-interposition reinstates some optimizations by gcc
+             ;; leading to around 15% speedup. This is the default starting from
+             ;; python 3.10.
+             "CFLAGS=-fno-semantic-interposition"
              (string-append "LDFLAGS=-Wl,-rpath="
-                            (assoc-ref %outputs "out") "/lib"))
+                            (assoc-ref %outputs "out") "/lib"
+                            " -fno-semantic-interposition"))
        ;; With no -j argument tests use all available cpus, so provide one.
        #:make-flags
        (list (string-append
@@ -183,12 +224,12 @@
               ;; https://github.com/python/cpython/commit/529525fb5a8fd9b96ab4021311a598c77588b918.
               " --exclude test_urllib2_localnet test_httplib"))
 
-        #:modules ((ice-9 ftw) (ice-9 match)
-                   (guix build utils) (guix build gnu-build-system))
-        #:phases
-        (modify-phases %standard-phases
-          (add-before
-           'configure 'patch-lib-shells
+       #:modules ((ice-9 ftw) (ice-9 match)
+                  (guix build utils) (guix build gnu-build-system))
+       #:phases
+       (modify-phases %standard-phases
+         (add-before
+             'configure 'patch-lib-shells
            (lambda _
              ;; This variable is used in setup.py to enable cross compilation
              ;; specific switches. As it is not set properly by configure
@@ -204,40 +245,34 @@
                                     "Lib/distutils/tests/test_spawn.py"
                                     "Lib/test/support/__init__.py"
                                     "Lib/test/test_subprocess.py"))
-               (("/bin/sh") (which "sh")))
-             #t))
-          ,@(if (hurd-system?)
-                `((add-before 'build 'patch-regen-for-hurd
-                    (lambda* (#:key inputs #:allow-other-keys)
-                      (let ((libc (assoc-ref inputs "libc")))
-                        (substitute* "Lib/plat-generic/regen"
-                          (("/usr/include/") (string-append libc "/include/")))
-                        #t))))
-                '())
-          (add-before 'configure 'do-not-record-configure-flags
-            (lambda* (#:key configure-flags #:allow-other-keys)
-              ;; Remove configure flags from the installed '_sysconfigdata.py'
-              ;; and 'Makefile' so we don't end up keeping references to the
-              ;; build tools.
-              ;;
-              ;; Preserve at least '--with-system-ffi' since otherwise the
-              ;; thing tries to build libffi, fails, and we end up with a
-              ;; Python that lacks ctypes.
-              (substitute* "configure"
-                (("^CONFIG_ARGS=.*$")
-                 (format #f "CONFIG_ARGS='~a'\n"
-                         (if (member "--with-system-ffi" configure-flags)
-                             "--with-system-ffi"
-                             ""))))
-              #t))
-          (add-before
-           'check 'pre-check
+               (("/bin/sh") (which "sh")))))
+         ,@(if (hurd-system?)
+               `((add-before 'build 'patch-regen-for-hurd
+                   (lambda* (#:key inputs #:allow-other-keys)
+                     (let ((libc (assoc-ref inputs "libc")))
+                       (substitute* "Lib/plat-generic/regen"
+                         (("/usr/include/") (string-append libc "/include/")))))))
+               '())
+         (add-before 'configure 'do-not-record-configure-flags
+           (lambda* (#:key configure-flags #:allow-other-keys)
+             ;; Remove configure flags from the installed '_sysconfigdata.py'
+             ;; and 'Makefile' so we don't end up keeping references to the
+             ;; build tools.
+             ;;
+             ;; Preserve at least '--with-system-ffi' since otherwise the
+             ;; thing tries to build libffi, fails, and we end up with a
+             ;; Python that lacks ctypes.
+             (substitute* "configure"
+               (("^CONFIG_ARGS=.*$")
+                (format #f "CONFIG_ARGS='~a'\n"
+                        (if (member "--with-system-ffi" configure-flags)
+                            "--with-system-ffi"
+                            ""))))))
+         (add-before 'check 'pre-check
            (lambda _
              ;; 'Lib/test/test_site.py' needs a valid $HOME
-             (setenv "HOME" (getcwd))
-             #t))
-          (add-after
-           'unpack 'set-source-file-times-to-1980
+             (setenv "HOME" (getcwd))))
+         (add-after 'unpack 'set-source-file-times-to-1980
            ;; XXX One of the tests uses a ZIP library to pack up some of the
            ;; source tree, and fails with "ZIP does not support timestamps
            ;; before 1980".  Work around this by setting the file times in the
@@ -246,98 +281,130 @@
              (let ((circa-1980 (* 10 366 24 60 60)))
                (ftw "." (lambda (file stat flag)
                           (utime file circa-1980 circa-1980)
-                          #t))
-               #t)))
-          (add-after 'install 'remove-tests
-            ;; Remove 25 MiB of unneeded unit tests.  Keep test_support.*
-            ;; because these files are used by some libraries out there.
-            (lambda* (#:key outputs #:allow-other-keys)
-              (let ((out (assoc-ref outputs "out")))
-                (match (scandir (string-append out "/lib")
-                                (lambda (name)
-                                  (string-prefix? "python" name)))
-                  ((pythonX.Y)
-                   (let ((testdir (string-append out "/lib/" pythonX.Y
-                                                 "/test")))
-                     (with-directory-excursion testdir
-                       (for-each delete-file-recursively
-                                 (scandir testdir
-                                          (match-lambda
-                                            ((or "." "..") #f)
-                                            ("support" #f)
-                                            (file
-                                             (not
-                                              (string-prefix? "test_support."
-                                                              file))))))
-                       (call-with-output-file "__init__.py" (const #t))
-                       #t)))))))
-          (add-after 'remove-tests 'rebuild-bytecode
-            (lambda* (#:key outputs #:allow-other-keys)
-              (let ((out (assoc-ref outputs "out")))
-                ;; Disable hash randomization to ensure the generated .pycs
-                ;; are reproducible.
-                (setenv "PYTHONHASHSEED" "0")
-                (for-each
-                 (lambda (opt)
-                   (format #t "Compiling with optimization level: ~a\n"
-                           (if (null? opt) "none" (car opt)))
-                   (for-each (lambda (file)
-                               (apply invoke
-                                      `(,,(if (%current-target-system)
-                                              "python2"
-                                              '(string-append out "/bin/python"))
-                                        ,@opt
-                                        "-m" "compileall"
-                                        "-f" ; force rebuild
-                                        ;; Don't build lib2to3, because it contains Python 3 code.
-                                        "-x" "lib2to3/.*"
-                                        ,file)))
-                             (find-files out "\\.py$")))
-                 (list '() '("-O") '("-OO")))
-                #t)))
-          (add-after 'install 'move-tk-inter
-            (lambda* (#:key outputs #:allow-other-keys)
-              ;; When Tkinter support is built move it to a separate output so
-              ;; that the main output doesn't contain a reference to Tcl/Tk.
-              (let ((out (assoc-ref outputs "out"))
-                    (tk  (assoc-ref outputs "tk")))
-                (when tk
-                  (match (find-files out "tkinter.*\\.so")
-                    ((tkinter.so)
-                     ;; The .so is in OUT/lib/pythonX.Y/lib-dynload, but we
-                     ;; want it under TK/lib/pythonX.Y/site-packages.
-                     (let* ((len    (string-length out))
-                            (target (string-append
-                                     tk "/"
-                                     (string-drop
-                                      (dirname (dirname tkinter.so))
-                                      len)
-                                     "/site-packages")))
-                       (install-file tkinter.so target)
-                       (delete-file tkinter.so)))))
-                #t))))))
+                          #t)))))
+         (add-after 'install 'remove-tests
+           ;; Remove 25 MiB of unneeded unit tests.  Keep test_support.*
+           ;; because these files are used by some libraries out there.
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               (match (scandir (string-append out "/lib")
+                               (lambda (name)
+                                 (string-prefix? "python" name)))
+                 ((pythonX.Y)
+                  (let ((testdir (string-append out "/lib/" pythonX.Y
+                                                "/test")))
+                    (with-directory-excursion testdir
+                      (for-each delete-file-recursively
+                                (scandir testdir
+                                         (match-lambda
+                                           ((or "." "..") #f)
+                                           ("support" #f)
+                                           (file
+                                            (not
+                                             (string-prefix? "test_support."
+                                                             file))))))
+                      (call-with-output-file "__init__.py" (const #t))))
+                  (let ((libdir (string-append out "/lib/" pythonX.Y)))
+                    (for-each
+                     (lambda (directory)
+                       (let ((dir (string-append libdir "/" directory)))
+                         (when (file-exists? dir)
+                           (delete-file-recursively dir))))
+                     '("email/test" "ctypes/test" "unittest/test" "tkinter/test"
+                       "sqlite3/test" "bsddb/test" "lib-tk/test" "lib2to3/tests"
+                       "json/tests" "distutils/tests"))))))))
+         (add-after 'remove-tests 'move-tk-inter
+           (lambda* (#:key outputs #:allow-other-keys)
+             ;; When Tkinter support is built move it to a separate output so
+             ;; that the main output doesn't contain a reference to Tcl/Tk.
+             (let ((out (assoc-ref outputs "out"))
+                   (tk  (assoc-ref outputs "tk")))
+               (when tk
+                 (match (find-files out "tkinter.*\\.so")
+                   ((tkinter.so)
+                    ;; The .so is in OUT/lib/pythonX.Y/lib-dynload, but we
+                    ;; want it under TK/lib/pythonX.Y/site-packages.
+                    (let* ((len    (string-length out))
+                           (target (string-append
+                                    tk "/"
+                                    (string-drop
+                                     (dirname (dirname tkinter.so))
+                                     len)
+                                    "/site-packages")))
+                      (install-file tkinter.so target)
+                      (delete-file tkinter.so))))))))
+         (add-after 'move-tk-inter 'move-idle
+           (lambda* (#:key outputs #:allow-other-keys)
+             ;; when idle is built, move it to a separate output to save some
+             ;; space (5MB)
+             (let ((out (assoc-ref outputs "out"))
+                   (idle (assoc-ref outputs "idle")))
+               (when idle
+                 (for-each
+                  (lambda (file)
+                    (let ((target (string-append idle "/bin/" (basename file))))
+                      (install-file file (dirname target))
+                      (delete-file file)))
+                  (find-files (string-append out "/bin") "^idle"))
+                 (match (find-files out "^idlelib$" #:directories? #t)
+                   ((idlelib)
+                    (let* ((len (string-length out))
+                           (target (string-append idle "/"
+                                                  (string-drop idlelib len)
+                                                  "/site-packages")))
+                      (mkdir-p (dirname target))
+                      (rename-file idlelib target))))))))
+         (add-after 'move-idle 'rebuild-bytecode
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               ;; Disable hash randomization to ensure the generated .pycs
+               ;; are reproducible.
+               (setenv "PYTHONHASHSEED" "0")
+               (for-each
+                (lambda (output)
+                  (for-each (lambda (opt)
+                              (format #t "Compiling with optimization level: ~a\n"
+                                      (if (null? opt) "none" (car opt)))
+                              (apply invoke
+                                     `(,,(if (%current-target-system)
+                                             "python2"
+                                             '(string-append out "/bin/python"))
+                                       ,@opt
+                                       "-m" "compileall"
+                                       "-f" ; force rebuild
+                                       ;; Don't build lib2to3, because it contains
+                                       ;; Python 3 code.
+                                       "-x" "lib2to3/.*"
+                                       ,output)))
+                            ;; Python 2 has a single file extension (.pyo) for the
+                            ;; chosen level of optimization, so it doesn't make
+                            ;; sense to byte compile with more than one level.
+                            (list '() '("-OO"))))
+                (map cdr outputs)))))
+         (add-after 'install 'install-sitecustomize.py
+           ,(customize-site version)))))
     (inputs
      `(("bzip2" ,bzip2)
        ("expat" ,expat)
        ("gdbm" ,gdbm)
-       ("libffi" ,libffi)                         ; for ctypes
-       ("sqlite" ,sqlite)                         ; for sqlite extension
+       ("libffi" ,libffi)               ; for ctypes
+       ("sqlite" ,sqlite)               ; for sqlite extension
        ("openssl" ,openssl)
        ("readline" ,readline)
        ("zlib" ,zlib)
        ("tcl" ,tcl)
-       ("tk" ,tk)))                               ; for tkinter
+       ("tk" ,tk)))                     ; for tkinter
     (native-inputs
      `(("pkg-config" ,pkg-config)
+       ("sitecustomize.py" ,(local-file (search-auxiliary-file
+                                         "python/sitecustomize.py")))
        ;; When cross-compiling, a native version of Python itself is needed.
        ,@(if (%current-target-system)
              `(("python2" ,this-package)
                ("which" ,which))
              '())))
     (native-search-paths
-     (list (search-path-specification
-            (variable "PYTHONPATH")
-            (files '("lib/python2.7/site-packages")))))
+     (list (guix-pythonpath-search-path version)))
     (home-page "https://www.python.org")
     (synopsis "High-level, dynamically-typed programming language")
     (description
@@ -362,24 +429,25 @@ data types.")
     (name "python")
     (properties `((superseded . ,python-2)))))
 
-(define-public python-3.8
-  (package (inherit python-2)
+(define-public python-3.9
+  (package
+    (inherit python-2)
     (name "python")
-    (version "3.8.2")
+    (version "3.9.6")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://www.python.org/ftp/python/"
                                   version "/Python-" version ".tar.xz"))
               (patches (search-patches
-                        "python-CVE-2020-26116.patch"
-                        "python-3.8-CVE-2021-3177.patch"
-                        "python-3-fix-tests.patch"
-                        "python-3.8-fix-tests.patch"
+                        "python-3-arm-alignment.patch"
                         "python-3-deterministic-build-info.patch"
-                        "python-3-search-paths.patch"))
+                        "python-3-fix-tests.patch"
+                        "python-3-hurd-configure.patch"
+                        "python-3-search-paths.patch"
+                        "python-3-no-static-lib.patch"))
               (sha256
                (base32
-                "1ps5v323cp5czfshqjmbsqw7nvrdpcbk06f62jbzaqik4gfffii6"))
+                "12hhw2685i68pwfx5hdkqngzhbji4ccyjmqb5rzvkigg6fpj0y9r"))
               (modules '((guix build utils)))
               (snippet
                '(begin
@@ -388,17 +456,16 @@ data types.")
                   (substitute* "Modules/Setup"
                     ;; Link Expat instead of embedding the bundled one.
                     (("^#pyexpat.*") "pyexpat pyexpat.c -lexpat\n"))
-                  #t))))
+                  ;; Delete windows binaries
+                  (for-each delete-file
+                            (find-files "Lib/distutils/command" "\\.exe$"))))))
     (arguments
      (substitute-keyword-arguments (package-arguments python-2)
        ((#:make-flags _)
         `(list (string-append
                 (format #f "TESTOPTS=-j~d" (parallel-job-count))
-                ;; test_mmap fails on low-memory systems.
-                " --exclude test_mmap"
-                ;; test_socket may hang and eventually run out of memory
-                ;; on some systems: <https://bugs.python.org/issue34587>.
-                " test_socket"
+                ;; test_mmap fails on low-memory systems
+                " --exclude test_mmap test_socket"
                 ,@(if (hurd-target?)
                       '(" test_posix"      ;multiple errors
                         " test_time"
@@ -432,124 +499,90 @@ data types.")
                         " test_write_pty")
                       '()))))
        ((#:phases phases)
-       `(modify-phases ,phases
-          ,@(if (hurd-system?)
-                `((delete 'patch-regen-for-hurd)) ;regen was removed after 3.5.9
-                '())
-          ,@(if (hurd-target?)
-                ;; The build system refuses to cross-compile for unknown targets
-                ;; even though it works fine.  Add GNU/Hurd target.
-                ;; TODO: Make it a patch in a future rebuild cycle.
-                '((add-before 'configure 'support-hurd-cross-compile
-                    (lambda _
-                      (substitute* "configure"
-                        (("\\*-\\*-vxworks.*" all)
-                         (string-append "*-*-gnu)\nac_sys_system=GNU\n;;\n" all)))
-                      #t)))
-                '())
-          (add-before 'check 'set-TZDIR
-            (lambda* (#:key inputs native-inputs #:allow-other-keys)
-              ;; test_email requires the Olson time zone database.
-              (setenv "TZDIR"
-                      (string-append (assoc-ref
-                                      (or native-inputs inputs) "tzdata")
-                                     "/share/zoneinfo"))
-              #t))
-          ;; Unset SOURCE_DATE_EPOCH while running the test-suite and set it
-          ;; again afterwards.  See <https://bugs.python.org/issue34022>.
-          (add-before 'check 'unset-SOURCE_DATE_EPOCH
-            (lambda _ (unsetenv "SOURCE_DATE_EPOCH") #t))
-          (add-after 'check 'reset-SOURCE_DATE_EPOCH
-            (lambda _ (setenv "SOURCE_DATE_EPOCH" "1") #t))
+        `(modify-phases ,phases
+           ,@(if (hurd-system?)
+                 `((delete 'patch-regen-for-hurd)) ;regen was removed after 3.5.9
+                 '())
+           (add-after 'unpack 'remove-windows-binaries
+             (lambda _
+               ;; Delete .exe from embedded .whl (zip) files
+               (for-each
+                (lambda (whl)
+                  (let ((dir "whl-content")
+                        (circa-1980 (* 10 366 24 60 60)))
+                    (mkdir-p dir)
+                    (with-directory-excursion dir
+                      (let ((whl (string-append "../" whl)))
+                        (invoke "unzip" whl)
+                        (for-each delete-file
+                                  (find-files "." "\\.exe$"))
+                        (delete-file whl)
+                        ;; Reset timestamps to prevent them from ending
+                        ;; up in the Zip archive.
+                        (ftw "." (lambda (file stat flag)
+                                   (utime file circa-1980 circa-1980)
+                                   #t))
+                        (apply invoke "zip" "-X" whl
+                               (find-files "." #:directories? #t))))
+                    (delete-file-recursively dir)))
+                (find-files "Lib/ensurepip" "\\.whl$"))))
+           (add-before 'check 'set-TZDIR
+             (lambda* (#:key inputs native-inputs #:allow-other-keys)
+               ;; test_email requires the Olson time zone database.
+               (setenv "TZDIR"
+                       (string-append (assoc-ref
+                                       (or native-inputs inputs) "tzdata")
+                                      "/share/zoneinfo"))))
            (replace 'rebuild-bytecode
              (lambda* (#:key outputs #:allow-other-keys)
                (let ((out (assoc-ref outputs "out")))
                  ;; Disable hash randomization to ensure the generated .pycs
                  ;; are reproducible.
                  (setenv "PYTHONHASHSEED" "0")
-                 (for-each
-                  (lambda (opt)
-                    (format #t "Compiling with optimization level: ~a\n"
-                            (if (null? opt) "none" (car opt)))
-                    (for-each (lambda (file)
-                                (apply invoke
-                                       `(,,(if (%current-target-system)
-                                               "python3"
-                                               '(string-append out
-                                                               "/bin/python3"))
-                                          ,@opt
-                                          "-m" "compileall"
-                                          "-f" ; force rebuild
-                                          ;; Don't build lib2to3, because it's Python 2 code.
-                                          "-x" "lib2to3/.*"
-                                          ,file)))
-                              (find-files out "\\.py$")))
-                  (list '() '("-O") '("-OO")))
-                 #t)))
-           ;; XXX: Apply patch on ARM platforms only to avoid a full rebuild.
-           ;; Remove this phase in the next rebuild cycle.
-           ,@(let ((system (or (%current-target-system)
-                               (%current-system))))
-               (if (any (cute string-prefix? <> system)
-                        '("arm" "aarch64"))
-                   '((add-after 'unpack 'apply-alignment-patch
-                       (lambda* (#:key native-inputs inputs #:allow-other-keys)
-                        (invoke "patch" "-p1" "--force" "--input"
-                                (assoc-ref (or native-inputs inputs)
-                                           "arm-alignment.patch")))))
-                   '()))))))
-    (native-inputs
-     `(("tzdata" ,tzdata-for-tests)
 
-       ;; Disable unaligned accesses in the sha3 module on ARM as
-       ;; it causes a test failure when building 32-bit Python on a
-       ;; 64-bit kernel.  See <https://bugs.python.org/issue36515>.
-       ;; TODO: make this a regular patch in the next rebuild cycle.
-       ,@(let ((system (or (%current-target-system)
-                           (%current-system))))
-           (if (any (cute string-prefix? <> system)
-                    '("arm" "aarch64"))
-               `(("arm-alignment.patch" ,(search-patch "python-3-arm-alignment.patch")))
-               '()))
+                 (for-each (lambda (output)
+                             ;; XXX: Delete existing pycs generated by the build
+                             ;; system beforehand because the -f argument does
+                             ;; not necessarily overwrite all files, leading to
+                             ;; indeterministic results.
+                             (for-each (lambda (pyc)
+                                         (delete-file pyc))
+                                       (find-files output "\\.pyc$"))
 
+                             (apply invoke
+                                    `(,,(if (%current-target-system)
+                                            "python3"
+                                            '(string-append out
+                                                            "/bin/python3"))
+                                      "-m" "compileall"
+                                      "-o" "0" "-o" "1" "-o" "2"
+                                      "-f" ; force rebuild
+                                      "--invalidation-mode=unchecked-hash"
+                                      ;; Don't build lib2to3, because it's
+                                      ;; Python 2 code.
+                                      "-x" "lib2to3/.*"
+                                      ,output)))
+                           (map cdr outputs)))))
+           (replace 'install-sitecustomize.py
+             ,(customize-site version))))))
+    (native-inputs
+     `(("tzdata" ,tzdata-for-tests)
+       ("unzip" ,unzip)
+       ("zip" ,(@ (gnu packages compression) zip))
        ,@(if (%current-target-system)
              `(("python3" ,this-package))
              '())
        ,@(package-native-inputs python-2)))
     (native-search-paths
-     (list (search-path-specification
-            (variable "PYTHONPATH")
-            (files (list (string-append "lib/python"
-                                        (version-major+minor version)
-                                        "/site-packages"))))))))
-
-(define-public python-3.9
-  (package (inherit python-3.8)
-    (name "python-next")
-    (version "3.9.2")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://www.python.org/ftp/python/"
-                                  version "/Python-" version ".tar.xz"))
-              (patches (search-patches
-                        "python-3.9-fix-tests.patch"
-                        "python-3-deterministic-build-info.patch"
-                        "python-3-search-paths.patch"))
-              (sha256
-               (base32
-                "0z94vv5qhlwvcgc4sy9sdiqs0220s84wx3b62vslh5419z2k881w"))
-              (modules '((guix build utils)))
-              (snippet
-               '(begin
-                  ;; Delete the bundled copy of libexpat.
-                  (delete-file-recursively "Modules/expat")
-                  (substitute* "Modules/Setup"
-                    ;; Link Expat instead of embedding the bundled one.
-                    (("^#pyexpat.*") "pyexpat pyexpat.c -lexpat\n"))
-                  #t))))))
+     (list (guix-pythonpath-search-path version)
+           ;; Used to locate tzdata by the zoneinfo module introduced in
+           ;; Python 3.9.
+           (search-path-specification
+            (variable "PYTHONTZPATH")
+            (files (list "share/zoneinfo")))))))
 
 ;; Current 3.x version.
-(define-public python-3 python-3.8)
+(define-public python-3 python-3.9)
 
 ;; Current major version.
 (define-public python python-3)
@@ -623,8 +656,8 @@ for more information.")))
                   (lambda (old new)
                     (symlink (string-append python old)
                              (string-append bin "/" new)))
-                  `("python3" ,"pydoc3" ,"idle3" ,"pip3")
-                  `("python"  ,"pydoc"  ,"idle"  ,"pip"))
+                  `("python3" ,"pydoc3" ,"pip3")
+                  `("python"  ,"pydoc"  ,"pip"))
                 ;; python-config outputs search paths based upon its location,
                 ;; use a bash wrapper to avoid changing its outputs.
                 (let ((bash (string-append (assoc-ref %build-inputs "bash")
@@ -635,8 +668,7 @@ for more information.")))
                     (lambda ()
                       (format #t "#!~a~%" bash)
                       (format #t "exec \"~a\" \"$@\"~%" old)
-                      (chmod new #o755)
-                      #t)))))))
+                      (chmod new #o755))))))))
     (synopsis "Wrapper for the Python 3 commands")
     (description
      "This package provides wrappers for the commands of Python@tie{}3.x such
@@ -790,7 +822,7 @@ ease from the desktop to a microcontroller or embedded system.")
                       (substitute* '("lib-python/3/subprocess.py")
                         ;; Fix shell path
                         (("/bin/sh")
-                         (string-append (assoc-ref inputs "bash-minimal") "/bin/sh")))
+                         (search-input-file inputs "/bin/sh")))
                       (substitute* '("lib-python/3/distutils/unixccompiler.py")
                         ;; gcc-toolchain does not provide symlink cc -> gcc
                         (("\"cc\"") "\"gcc\""))
@@ -816,9 +848,6 @@ ease from the desktop to a microcontroller or embedded system.")
                                 "targetpypystandalone"))
                       ;; Build c modules and package everything, so tests work.
                       (with-directory-excursion "pypy/tool/release"
-                        (unsetenv "PYTHONPATH") ; Do not use the system’s python libs:
-                                        ; AttributeError: module 'enum' has no
-                                        ; attribute 'IntFlag'
                         (invoke "python2" "package.py"
                                 "--archive-name" "pypy-dist"
                                 "--builddir" (getcwd)))))
diff --git a/gnu/packages/qt.scm b/gnu/packages/qt.scm
index 95618a9787..f80ea336d8 100644
--- a/gnu/packages/qt.scm
+++ b/gnu/packages/qt.scm
@@ -168,9 +168,7 @@
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "qt5ct.pro"
                (("\\$\\$\\[QT_INSTALL_BINS\\]/lrelease")
-                (string-append (assoc-ref inputs "qttools")
-                               "/bin/lrelease")))
-             #t))
+                (search-input-file inputs "/bin/lrelease")))))
          (replace 'configure
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out")))
diff --git a/gnu/packages/radio.scm b/gnu/packages/radio.scm
index f255764b27..d8f4161eb7 100644
--- a/gnu/packages/radio.scm
+++ b/gnu/packages/radio.scm
@@ -502,10 +502,10 @@ used by RDS Spy, and audio files containing @dfn{multiplex} signals (MPX).")
        ("python-pyzmq" ,python-pyzmq)
        ("python-scipy" ,python-scipy)
        ("python-sphinx" ,python-sphinx)
-       ("texlive" ,(texlive-union (list texlive-amsfonts/patched
-                                        texlive-latex-amsmath
-                                        ;; TODO: Add newunicodechar.
-                                        texlive-latex-graphics)))
+       ("texlive" ,(texlive-updmap.cfg (list texlive-amsfonts
+                                             texlive-latex-amsmath
+                                             ;; TODO: Add newunicodechar.
+                                             texlive-latex-graphics)))
        ("xorg-server" ,xorg-server-for-tests)))
     (inputs
      `(("alsa-lib" ,alsa-lib)
@@ -579,8 +579,7 @@ used by RDS Spy, and audio files containing @dfn{multiplex} signals (MPX).")
          (add-before 'check 'set-test-environment
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "HOME" "/tmp")
-             (system (string-append (assoc-ref inputs "xorg-server")
-                                    "/bin/Xvfb :1 &"))
+             (system "Xvfb :1 &")
              (setenv "DISPLAY" ":1")
              #t))
          (replace 'check
@@ -621,7 +620,7 @@ used by RDS Spy, and audio files containing @dfn{multiplex} signals (MPX).")
             (variable "GRC_BLOCKS_PATH")
             (files '("share/gnuradio/grc/blocks")))
            (search-path-specification
-            (variable "PYTHONPATH")
+            (variable "GUIX_PYTHONPATH")
             (files (list (string-append "lib/python"
                                         (version-major+minor
                                          (package-version python))
@@ -711,7 +710,7 @@ to access different radio hardware.")
        ("doxygen" ,doxygen)
        ("libtool" ,libtool)
        ("pkg-config" ,pkg-config)
-       ("texlive" ,(texlive-union (list texlive-amsfonts/patched
+       ("texlive" ,(texlive-updmap.cfg (list texlive-amsfonts
                                         texlive-latex-amsmath
                                         ;; TODO: Add newunicodechar.
                                         texlive-latex-graphics)))))
@@ -724,9 +723,7 @@ to access different radio hardware.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "git-version-gen"
                (("/bin/sh")
-                (string-append (assoc-ref inputs "bash")
-                               "/bin/bash")))
-             #t)))))
+                (search-input-file inputs "/bin/bash"))))))))
     (synopsis "DSP primitives for SDR")
     (description
      "This a C-language library for common DSP (Digital Signal Processing)
@@ -1652,8 +1649,7 @@ methods:
                 "-lncurses"))
              (substitute* "src/libcw/libcw_pa.c"
                (("libpulse-simple.so" all)
-                (string-append (assoc-ref inputs "pulseaudio")
-                               "/lib/" all))))))))
+                (search-input-file inputs "/lib/libpulse-simple.so"))))))))
     (home-page "http://unixcw.sourceforge.net/")
     (synopsis "Morse code library and programs")
     (description
@@ -1787,23 +1783,17 @@ Compatible hardware/software:
                                (assoc-ref outputs "out")
                                "/share/man/man1"))
                (("/usr/include/pulse/")
-                (string-append (assoc-ref inputs "pulseaudio")
-                               "/include/pulse/"))
+                (search-input-directory inputs "include/pulse"))
                (("/usr/include/sndfile\\.h")
-                (string-append (assoc-ref inputs "libsndfile")
-                               "/include/sndfile.h"))
+                (search-input-file inputs "/include/sndfile.h"))
                (("/usr/include/opus/")
-                (string-append (assoc-ref inputs "opus")
-                               "/include/opus/"))
+                (search-input-directory inputs "include/opus"))
                (("/usr/include/speex/")
-                (string-append (assoc-ref inputs "speexdsp")
-                               "/include/speex/"))
+                (search-input-directory inputs "include/speex"))
                (("/usr/include/qwt/")
-                (string-append (assoc-ref inputs "qwt")
-                               "/include/qwt/"))
+                (search-input-directory inputs "include/qwt"))
                (("\\$\\$OUT_PWD/include/neaacdec\\.h")
-                (string-append (assoc-ref inputs "faad2")
-                               "/include/neaacdec.h")))))
+                (search-input-file inputs "/include/neaacdec.h")))))
          (replace 'configure
            (lambda _
              (invoke "qmake"))))))
diff --git a/gnu/packages/readline.scm b/gnu/packages/readline.scm
index c7db9e611d..9aeb7d0e7e 100644
--- a/gnu/packages/readline.scm
+++ b/gnu/packages/readline.scm
@@ -3,7 +3,7 @@
 ;;; Copyright © 2016, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2018, 2021 Tobias Geerinckx-Rice <me@tobias.gr>
-;;; Copyright © 2019 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2019, 2020 Marius Bakke <marius@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -48,13 +48,10 @@
   (list (readline-patch version seqno (base32 hash))
         ...))
 
-(define %patch-series-8.0
+(define %patch-series-8.1
   (patch-series
-   "8.0"
-   (1 "0sfh7wn0pr743xspnb1zndxndlv9rc0hcg14cbw5cmyg6f4ykrfq")
-   (2 "1xy8mv8xm8hsfixwp3ci9kfx3dii3y92cq27wwd0jq75y6zzxc1n")
-   (3 "1vza7sxjcsr2z295ij12nzgncdil1vb6as3mqy4m7svi1chv5pcl")
-   (4 "0k1rfx9w32lglxg564yvp0mw6jg6883p8ac2f2lxxqpf80m3vami")))
+   "8.1"
+   (1 "0i4ikdqgcjnb40y2ss3lm09rq56zih5rzma3bib50dk3d1d4cak8")))
 
 (define %patch-series-7.0
   (patch-series
@@ -68,16 +65,16 @@
 (define-public readline
   (package
     (name "readline")
-    (version (string-append "8.0."
-                            (number->string (length %patch-series-8.0))))
+    (version (string-append "8.1."
+                            (number->string (length %patch-series-8.1))))
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnu/readline/readline-"
                                   (version-major+minor version) ".tar.gz"))
               (sha256
                (base32
-                "0qg4924hf4hg0r0wbx2chswsr08734536fh5iagkd3a7f4czafg3"))
-              (patches (append %patch-series-8.0
+                "00ibp0n9crbwx15k9vvckq5wsipw98b1px8pd8i34chy2gpb9kpq"))
+              (patches (append %patch-series-8.1
                                (search-patches "readline-link-ncurses.patch")))
               (patch-flags '("-p0"))))
     (build-system gnu-build-system)
diff --git a/gnu/packages/rrdtool.scm b/gnu/packages/rrdtool.scm
index 13419e4d37..b8b48e21d6 100644
--- a/gnu/packages/rrdtool.scm
+++ b/gnu/packages/rrdtool.scm
@@ -73,9 +73,7 @@
          (add-before 'check 'prepare-test-environment
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "TZDIR"
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo"))
-             #t))
+                     (search-input-directory inputs "share/zoneinfo"))))
          (add-after 'install 'remove-native-input-references
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
diff --git a/gnu/packages/ruby.scm b/gnu/packages/ruby.scm
index 14197e1eab..5a8a7e14bd 100644
--- a/gnu/packages/ruby.scm
+++ b/gnu/packages/ruby.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014, 2015 Pjotr Prins <pjotr.guix@thebird.nl>
-;;; Copyright © 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2015, 2016, 2017, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014, 2015 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014, 2015 David Thompson <davet@gnu.org>
 ;;; Copyright © 2015, 2019 Ricardo Wurmus <rekado@elephly.net>
@@ -95,7 +95,7 @@
         license:gpl2+
         license:gpl3+))
 
-(define-public ruby
+(define-public ruby-2.6
   (package
     (name "ruby")
     (version "2.6.5")
@@ -153,7 +153,7 @@ a focus on simplicity and productivity.")
 
 (define-public ruby-2.7
   (package
-    (inherit ruby)
+    (inherit ruby-2.6)
     (version "2.7.2")
     (source
      (origin
@@ -210,7 +210,7 @@ a focus on simplicity and productivity.")
 
 (define-public ruby-2.5
   (package
-    (inherit ruby)
+    (inherit ruby-2.6)
     (version "2.5.8")
     (source
      (origin
@@ -229,7 +229,7 @@ a focus on simplicity and productivity.")
 
 (define-public ruby-2.4
   (package
-    (inherit ruby)
+    (inherit ruby-2.6)
     (version "2.4.10")
     (source
      (origin
@@ -246,6 +246,8 @@ a focus on simplicity and productivity.")
                    (delete-file-recursively "ext/fiddle/libffi-3.2.1")
                    #t))))))
 
+(define-public ruby ruby-2.7)
+
 (define-public mruby
   (package
     (name "mruby")
@@ -1173,8 +1175,7 @@ structure.  Supports custom object formatting via plugins.")
              #t))
          (add-after 'unpack 'patch-pandoc-path
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((pandoc (string-append (assoc-ref inputs "pandoc")
-                                          "/bin/pandoc")))
+             (let ((pandoc (search-input-file inputs "/bin/pandoc")))
                (substitute* "lib/pandoc-ruby.rb"
                  (("@@pandoc_path = 'pandoc'")
                   (format #f "@@pandoc_path = '~a'" pandoc)))
@@ -1296,14 +1297,6 @@ syntax to the minimum while remaining clear.")
      `(#:test-target "test:all"
        #:phases
        (modify-phases %standard-phases
-         (replace 'replace-git-ls-files
-           (lambda _
-             ;; TODO: Remove after the fix of using 'cut' to better mimic the
-             ;; git ls-files output is merged in ruby-build-system.
-             (substitute* "asciidoctor.gemspec"
-               (("`git ls-files -z`")
-                "`find . -type f -print0 |sort -z|cut -zc3-`"))
-             #t))
          (add-after 'extract-gemspec 'strip-version-requirements
            (lambda _
              (delete-file "Gemfile")
@@ -1502,17 +1495,7 @@ loader for the file type associated with a filename extension, and it augments
          "1dmk94z6ivhrz5hsq68vl5vgydhkz89n394rha1ymddw3rymbfcv"))))
     (build-system ruby-build-system)
     (arguments
-     `(#:test-target "spec"
-       #:phases
-       (modify-phases %standard-phases
-         (replace 'replace-git-ls-files
-           (lambda _
-             ;; TODO: Remove after the fix of using 'cut' to better mimic the
-             ;; git ls-files output is merged in ruby-build-system.
-             (substitute* "treetop.gemspec"
-               (("`git ls-files -z`")
-                "`find . -type f -print0 |sort -z|cut -zc3-`"))
-             #t)))))
+     `(#:test-target "spec"))
     (native-inputs
      `(("ruby-activesupport" ,ruby-activesupport)
        ("ruby-rr" ,ruby-rr)
@@ -1735,15 +1718,6 @@ only what they care about.")
            (lambda _
              (delete-file "Gemfile")
              (delete-file "Gemfile.lock")
-             #t))
-         (replace 'replace-git-ls-files
-           (lambda _
-             ;; TODO: Remove after the fix of using 'cut' to better mimic the
-             ;; git ls-files output is merged in ruby-build-system.
-             (substitute* "standard.gemspec"
-               (("`git ls-files -z`")
-                "`find . -type f -not -regex '.*\\.gem$' -print0 \
-|sort -z|cut -zc3-`"))
              #t)))))
     (native-inputs
      `(("ruby-gimme" ,ruby-gimme)
@@ -1785,14 +1759,6 @@ to save time in the following ways:
            (lambda _
              (substitute* (find-files "." "\\.rb$")
                (("require.*bundler/setup.*") ""))
-             #t))
-         (replace 'replace-git-ls-files
-           (lambda _
-             ;; TODO: Remove after the fix of using 'cut' to better mimic the
-             ;; git ls-files output is merged in ruby-build-system.
-             (substitute* "chunky_png.gemspec"
-               (("`git ls-files`")
-                "`find . -type f -not -regex '.*\\.gem$' |sort |cut -c3-`"))
              #t)))))
     (native-inputs
      `(("bundler" ,bundler)
@@ -1914,15 +1880,6 @@ web pages.")
                  (("(.*add_.*dependency '[_A-Za-z0-9-]+').*" _ stripped)
                   (string-append stripped "\n")))
                #t))
-           (replace 'replace-git-ls-files
-             ;; TODO: Remove after the fix of using 'cut' to better mimic the
-             ;; git ls-files output is merged in ruby-build-system.
-             (lambda _
-               (substitute* "asciidoctor-pdf.gemspec"
-                 (("`git ls-files -z`")
-                  "`find . -type f -not -regex '.*\\.gem$' -print0 \
-|sort -z|cut -zc3-`"))
-               #t))
            ;; The tests rely on the Gem being installed, so move the check phase
            ;; after the install phase.
            (delete 'check)
@@ -4892,8 +4849,7 @@ you to merge elements inside a hash together recursively.")
                     (lambda* (#:key inputs outputs #:allow-other-keys)
                       ;; Make the default git binary an absolute path to the
                       ;; store.
-                      (let ((git    (string-append (assoc-ref inputs "git")
-                                                   "/bin/git"))
+                      (let ((git    (search-input-file inputs "/bin/git"))
                             (config (string-append
                                      (assoc-ref outputs "out")
                                      "/lib/ruby/vendor_ruby/gems/git-"
diff --git a/gnu/packages/rust.scm b/gnu/packages/rust.scm
index 73f94a3929..fd6233fc94 100644
--- a/gnu/packages/rust.scm
+++ b/gnu/packages/rust.scm
@@ -4,13 +4,14 @@
 ;;; Copyright © 2016 Nikita <nikita@n0.is>
 ;;; Copyright © 2017 Ben Woodcroft <donttrustben@gmail.com>
 ;;; Copyright © 2017, 2018 Nikolai Merinov <nikolai.merinov@member.fsf.org>
-;;; Copyright © 2017, 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2017, 2019, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Danny Milosavljevic <dannym+a@scratchpost.org>
 ;;; Copyright © 2019 Ivan Petkov <ivanppetkov@gmail.com>
 ;;; Copyright © 2020, 2021 Jakub Kądziołka <kuba@kadziolka.net>
 ;;; Copyright © 2020 Pierre Langlois <pierre.langlois@gmx.com>
 ;;; Copyright © 2020 Matthew James Kraai <kraai@ftbfs.org>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -107,455 +108,274 @@
     (inherit base-rust)
     (version version)
     (source
-      (origin
-        (inherit (package-source base-rust))
-        (uri (rust-uri version))
-        (sha256 (base32 checksum))))
+     (origin
+       (inherit (package-source base-rust))
+       (uri (rust-uri version))
+       (sha256 (base32 checksum))))
     (native-inputs
      (alist-replace "cargo-bootstrap" (list base-rust "cargo")
                     (alist-replace "rustc-bootstrap" (list base-rust)
                                    (package-native-inputs base-rust))))))
 
-(define-public mrustc
-  (let ((rustc-version "1.19.0"))
-    (package
-      (name "mrustc")
-      (version "0.9")
-      (source (origin
-                (method git-fetch)
-                (uri (git-reference
-                      (url "https://github.com/thepowersgang/mrustc")
-                      (commit (string-append "v" version))))
-                (file-name (git-file-name name version))
-                (sha256
-                 (base32
-                  "194ny7vsks5ygiw7d8yxjmp1qwigd71ilchis6xjl6bb2sj97rd2"))))
-      (outputs '("out" "cargo"))
-      (build-system gnu-build-system)
-      (inputs
-       `(("zlib" ,zlib)))
-      (native-inputs
-       `(("bison" ,bison)
-         ("flex" ,flex)
-         ;; Required for the libstd sources.
-         ("rustc" ,(package-source rust-1.19))))
-      (arguments
-       `(#:test-target "test"
-         #:make-flags
-         (list ,(string-append "RUSTC_TARGET="
-                               (or (%current-target-system)
-                                   (nix-system->gnu-triplet-for-rust))))
-         #:phases
-         (modify-phases %standard-phases
-          (add-after 'unpack 'patch-date
-            (lambda _
-              (substitute* "Makefile"
-               (("shell date") "shell date -d @1"))
-              (substitute* "run_rustc/Makefile"
-               (("[$]Vtime ") "$V "))
-              #t))
-           (add-after 'patch-date 'unpack-target-compiler
-             (lambda* (#:key inputs outputs #:allow-other-keys)
-               (invoke "tar" "xf" (assoc-ref inputs "rustc"))
-               (chdir ,(string-append "rustc-" rustc-version "-src"))
-               (invoke "patch" "-p0" ,(string-append "../rustc-" rustc-version
-                                                     "-src.patch"))
-               (chdir "..")
-               (setenv "RUSTC_VERSION" ,rustc-version)
-               (setenv "MRUSTC_TARGET_VER"
-                ,(version-major+minor rustc-version))
-               (setenv "OUTDIR_SUF" "")
-               #t))
-           (replace 'configure
-             (lambda* (#:key inputs #:allow-other-keys)
-               (setenv "CC" (string-append (assoc-ref inputs "gcc")
-                                           "/bin/gcc"))
-               (setenv "CXX" (string-append (assoc-ref inputs "gcc")
-                                            "/bin/g++"))
-               #t))
-           (add-after 'build 'build-minicargo
-             (lambda* (#:key make-flags #:allow-other-keys)
-               ;; TODO: minicargo.mk: RUSTC_VERSION=$(RUSTC_VERSION) RUSTC_CHANNEL=$(RUSTC_SRC_TY) OUTDIR_SUF=$(OUTDIR_SUF)
-               (apply invoke "make" "-f" "minicargo.mk" "LIBS" make-flags)
-               (apply invoke "make" "-C" "tools/minicargo" make-flags)))
-           ;(add-after 'check 'check-locally
-           ;  (lambda* (#:key make-flags #:allow-other-keys)
-           ;    ;; The enum test wouldn't work otherwise.
-           ;    ;; See <https://github.com/thepowersgang/mrustc/issues/137>.
-           ;    (setenv "MRUSTC_TARGET_VER" ,(version-major+minor rustc-version))
-           ;    (apply invoke "make" "local_tests" make-flags)))
-           (replace 'install
-             (lambda* (#:key inputs outputs #:allow-other-keys)
-               (let* ((out (assoc-ref outputs "out"))
-                      (bin (string-append out "/bin"))
-                      (tools-bin (string-append out "/tools/bin"))
-                      (cargo-out (assoc-ref outputs "cargo"))
-                      (cargo-bin (string-append cargo-out "/bin"))
-                      (lib (string-append out "/lib"))
-                      (lib/rust (string-append lib "/mrust"))
-                      (gcc (assoc-ref inputs "gcc"))
-                      (run_rustc (string-append out
-                                                "/share/mrustc/run_rustc")))
-                 ;; These files are not reproducible.
-                 (for-each delete-file (find-files "output" "\\.txt$"))
-                 ;(delete-file-recursively "output/local_tests")
-                 (mkdir-p (dirname lib/rust))
-                 (copy-recursively "output" lib/rust)
-                 (mkdir-p bin)
-                 (mkdir-p tools-bin)
-                 (install-file "bin/mrustc" bin)
-                 ;; minicargo uses relative paths to resolve mrustc.
-                 (install-file "tools/bin/minicargo" tools-bin)
-                 (install-file "tools/bin/minicargo" cargo-bin)
-                 (mkdir-p run_rustc)
-                 (copy-file "run_rustc/Makefile"
-                            (string-append run_rustc "/Makefile"))
-                 #t))))))
-      (synopsis "Compiler for the Rust programming language")
-      (description "Rust is a systems programming language that provides memory
-safety and thread safety guarantees.")
-      (home-page "https://github.com/thepowersgang/mrustc")
-      ;; Dual licensed.
-      (license (list license:asl2.0 license:expat)))))
-
-(define rust-1.19
+;;; Note: mrustc's only purpose is to be able to bootstap Rust; it's designed
+;;; to be used in source form.
+(define %mrustc-source
+  (let ((name "mrustc")
+        (version "0.9"))
+    (origin
+      (method git-fetch)
+      (uri (git-reference
+            (url "https://github.com/thepowersgang/mrustc")
+            (commit (string-append "v" version))))
+      (file-name (git-file-name name version))
+      (sha256
+       (base32
+        "194ny7vsks5ygiw7d8yxjmp1qwigd71ilchis6xjl6bb2sj97rd2")))))
+
+;;; Rust 1.29 is special in that it is built with mrustc, which shortens the
+;;; bootstrap path.  Note: the build is non-deterministic.
+(define-public rust-1.29
   (package
     (name "rust")
-    (version "1.19.0")
+    (version "1.29.2")
     (source
-      (origin
-        (method url-fetch)
-        (uri (rust-uri "1.19.0"))
-        (sha256 (base32 "0l8c14qsf42rmkqy92ahij4vf356dbyspxcips1aswpvad81y8qm"))
-        (modules '((guix build utils)))
-        (snippet '(begin (delete-file-recursively "src/llvm") #t))
-        (patches (search-patches "rust-1.19-mrustc.patch"))))
+     (origin
+       (method url-fetch)
+       (uri (rust-uri version))
+       (sha256 (base32 "1jb787080z754caa2w3w1amsygs4qlzj9rs1vy64firfmabfg22h"))
+       (modules '((guix build utils)))
+       (snippet '(for-each delete-file-recursively
+                           '("src/jemalloc"
+                             "src/llvm"
+                             "src/llvm-emscripten")))
+       (patches (search-patches "rust-reproducible-builds.patch"))))
     (outputs '("out" "cargo"))
-    (properties '((timeout . 72000)               ;20 hours
-                  (max-silent-time . 18000)))     ;5 hours (for armel)
+    (properties '((timeout . 72000)           ;20 hours
+                  (max-silent-time . 18000))) ;5 hours (for armel)
+    (build-system gnu-build-system)
+    (inputs
+     `(("libcurl" ,curl)
+       ("libssh2" ,libssh2)
+       ;; Use llvm-7, which enables rust to be built reproducibly.
+       ;; Versions newer than 7 fail to compile.
+       ("llvm" ,llvm-7)
+       ("openssl" ,openssl)
+       ("zlib" ,zlib)))
+    (native-inputs
+     `(("bison" ,bison)
+       ("flex" ,flex)
+       ("pkg-config" ,pkg-config)
+       ;; Required for the libstd sources.
+       ("mrustc-source" ,%mrustc-source)))
     (arguments
      `(#:imported-modules ,%cargo-utils-modules ;for `generate-all-checksums'
-       #:modules ((guix build utils) (ice-9 match) (guix build gnu-build-system))
+       #:modules ((guix build cargo-utils)
+                  (guix build utils)
+                  (guix build gnu-build-system))
+       #:test-target "test"
+       ;; Rust's own .so library files are not found in any RUNPATH, but
+       ;; that doesn't seem to cause issues.
+       #:validate-runpath? #f
+       #:make-flags
+       (list ,(string-append "RUSTC_TARGET="
+                             (or (%current-target-system)
+                                 (nix-system->gnu-triplet-for-rust)))
+             ,(string-append "RUSTCSRC=../"))
        #:phases
        (modify-phases %standard-phases
-         (add-after 'unpack 'set-env
+         (add-after 'unpack 'patch-reference-to-cc
+           ;; This prevents errors like 'error: linker `cc` not found' when
+           ;; "cc" is not found on PATH.
            (lambda* (#:key inputs #:allow-other-keys)
-             ;; Disable test for cross compilation support.
-             (setenv "CFG_DISABLE_CROSS_TESTS" "1")
-             (setenv "SHELL" (which "sh"))
-             (setenv "CONFIG_SHELL" (which "sh"))
-             (setenv "CC" (string-append (assoc-ref inputs "gcc") "/bin/gcc"))
-             ;; guix llvm-3.9.1 package installs only shared libraries
-             (setenv "LLVM_LINK_SHARED" "1")
-             #t))
-         (add-after 'unpack 'patch-cargo-tomls
-           (lambda* (#:key inputs outputs #:allow-other-keys)
-             (substitute* "src/librustc_errors/Cargo.toml"
-               (("[[]dependencies[]]") "
-[dependencies]
-term = \"0.4.4\"
-"))
-             (substitute* "src/librustc/Cargo.toml"
-               (("[[]dependencies[]]") "
-[dependencies]
-getopts = { path = \"../libgetopts\" }
-"))
-             (substitute* "src/librustdoc/Cargo.toml"
-               (("[[]dependencies[]]") "
-[dependencies]
-test = { path = \"../libtest\" }
-"))
-             #t))
-         (add-after 'unpack 'patch-tests
+             (let ((gcc (assoc-ref inputs "gcc")))
+               (substitute* (find-files "." "^link.rs$")
+                 (("\"cc\".as_ref")
+                  (format #f "~s.as_ref" (string-append gcc "/bin/gcc")))))))
+         (add-after 'unpack 'copy-mrustc-and-patch
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((bash (assoc-ref inputs "bash")))
-               (substitute* "src/libstd/process.rs"
-                 ;; The newline is intentional.
-                 ;; There's a line length "tidy" check in Rust which would
-                 ;; fail otherwise.
-                 (("\"/bin/sh\"") (string-append "\n\"" bash "/bin/sh\"")))
-               (substitute* "src/libstd/net/tcp.rs"
-                 ;; There is no network in build environment
-                 (("fn connect_timeout_unroutable")
-                  "#[ignore]\nfn connect_timeout_unroutable"))
-               ;; <https://lists.gnu.org/archive/html/guix-devel/2017-06/msg00222.html>
-               (substitute* "src/libstd/sys/unix/process/process_common.rs"
-                (("fn test_process_mask") "#[allow(unused_attributes)]
-    #[ignore]
-    fn test_process_mask"))
-               #t)))
-         (add-after 'patch-tests 'patch-aarch64-test
-           (lambda* _
-             (substitute* "src/librustc_back/dynamic_lib.rs"
-               ;; This test is known to fail on aarch64 and powerpc64le:
-               ;; https://github.com/rust-lang/rust/issues/45410
-               (("fn test_loading_cosine") "#[ignore]\nfn test_loading_cosine"))
-             #t))
-         (add-after 'patch-tests 'use-readelf-for-tests
-           (lambda* _
-             ;; nm doesn't recognize the file format because of the
-             ;; nonstandard sections used by the Rust compiler, but readelf
-             ;; ignores them.
-             (substitute* "src/test/run-make/atomic-lock-free/Makefile"
-               (("\tnm ")
-                "\treadelf -c "))
-             #t))
-         (add-after 'patch-tests 'remove-unsupported-tests
-           (lambda* _
-             ;; Our ld-wrapper cannot process non-UTF8 bytes in LIBRARY_PATH.
-             ;; <https://lists.gnu.org/archive/html/guix-devel/2017-06/msg00193.html>
-             (delete-file-recursively "src/test/run-make/linker-output-non-utf8")
-             #t))
+             (copy-recursively (assoc-ref inputs "mrustc-source") "mrustc")
+             (invoke "patch" "-p0" "-i" "mrustc/rustc-1.29.0-src.patch")))
+         (add-after 'copy-mrustc-and-patch 'patch-makefiles
+           ;; This disables building the (unbundled) LLVM.
+           (lambda* (#:key inputs parallel-build? #:allow-other-keys)
+             (let ((llvm (assoc-ref inputs "llvm"))
+                   (job-spec (format #f "-j~a"
+                                     (if parallel-build?
+                                         (number->string (parallel-job-count))
+                                         "1"))))
+               (with-directory-excursion "mrustc"
+                 (substitute* '("minicargo.mk"
+                                "run_rustc/Makefile")
+                   ;; Use the system-provided LLVM.
+                   (("LLVM_CONFIG := .*")
+                    (string-append "LLVM_CONFIG := " llvm "/bin/llvm-config\n"))
+                   (("\\$\\(LLVM_CONFIG\\): .*")
+                    "$(LLVM_CONFIG):\n")
+                   (("\\$Vcd \\$\\(RUSTCSRC\\)build && \\$\\(MAKE\\).*")
+                    "true\n"))
+                 ;; Patch date.
+                 (substitute* "Makefile"
+                   (("shell date")
+                    "shell date -d @1"))
+                 (substitute* "run_rustc/Makefile"
+                   (("[$]Vtime ")
+                    "$V ")
+                   ;; Unlock the number of parallel jobs for cargo.
+                   (("-j [[:digit:]]+ ")
+                    "")
+                   ;; Patch the shebang of a generated wrapper for rustc, and
+                   ;; make sure that \n newline escapes get interpreted
+                   ;; correctly, specifying the '-e' option of echo.
+                   (("echo '#!/bin/sh")
+                    (string-append "echo -e '#!" (which "sh"))))))))
          (add-after 'patch-source-shebangs 'patch-cargo-checksums
            (lambda* _
-             (use-modules (guix build cargo-utils))
              (substitute* "src/Cargo.lock"
                (("(\"checksum .* = )\".*\"" all name)
                 (string-append name "\"" ,%cargo-reference-hash "\"")))
-             (generate-all-checksums "src/vendor")
-             #t))
-         ;; This phase is overridden by newer versions.
+             (generate-all-checksums "src/vendor")))
          (replace 'configure
-           (const #t))
-         ;; This phase is overridden by newer versions.
+           (lambda _
+             (setenv "CC" "gcc")
+             (setenv "CXX" "g++")
+             ;; The Guix LLVM package installs only shared libraries.
+             (setenv "LLVM_LINK_SHARED" "1")
+             ;; This is a workaround for
+             ;; https://github.com/thepowersgang/mrustc/issues/138.
+             (setenv "LIBSSH2_SYS_USE_PKG_CONFIG" "yes")))
+         (delete 'patch-generated-file-shebangs)
          (replace 'build
-           (lambda* (#:key inputs outputs #:allow-other-keys)
-             (let ((rustc-bootstrap (assoc-ref inputs "rustc-bootstrap")))
-               (setenv "CFG_COMPILER_HOST_TRIPLE"
-                ,(nix-system->gnu-triplet (%current-system)))
-               (setenv "CFG_RELEASE" "")
-               (setenv "CFG_RELEASE_CHANNEL" "stable")
-               (setenv "CFG_LIBDIR_RELATIVE" "lib")
-               (setenv "CFG_VERSION" "1.19.0-stable-mrustc")
-               (setenv "MRUSTC_TARGET_VER" ,(version-major+minor version))
-               ; bad: (setenv "CFG_PREFIX" "mrustc") ; FIXME output path.
-               (mkdir-p "output")
-               ;; mrustc 0.9 doesn't check the search paths for crates anymore.
-               (copy-recursively (string-append rustc-bootstrap "/lib/mrust")
-                                 "output")
-               (invoke (string-append rustc-bootstrap "/tools/bin/minicargo")
-                       "src/rustc" "--vendor-dir" "src/vendor"
-                       "--output-dir" "output/rustc-build"
-                       "-L" (string-append rustc-bootstrap "/lib/mrust")
-                       "-j" "1")
-               (setenv "CFG_COMPILER_HOST_TRIPLE" #f)
-               (setenv "CFG_RELEASE" #f)
-               (setenv "CFG_RELEASE_CHANNEL" #f)
-               (setenv "CFG_VERSION" #f)
-               (setenv "CFG_PREFIX" #f)
-               (setenv "CFG_LIBDIR_RELATIVE" #f)
-               (invoke (string-append rustc-bootstrap "/tools/bin/minicargo")
-                       "src/tools/cargo" "--vendor-dir" "src/vendor"
-                       "--output-dir" "output/cargo-build"
-                       "-L" "output/"
-                       "-L" (string-append rustc-bootstrap "/lib/mrust")
-                       "-j" "1")
-               ;; Now use the newly-built rustc to build the libraries.
-               ;; One day that could be replaced by:
-               ;; (invoke "output/cargo-build/cargo" "build"
-               ;;         "--manifest-path" "src/bootstrap/Cargo.toml"
-               ;;         "--verbose") ; "--locked" "--frozen"
-               ;; but right now, Cargo has problems with libstd's circular
-               ;; dependencies.
-               (mkdir-p "output/target-libs")
-               (for-each (match-lambda
-                          ((name . flags)
-                            (write name)
-                            (newline)
-                            (apply invoke
-                                   "output/rustc-build/rustc"
-                                   "-C" (string-append "linker="
-                                                       (getenv "CC"))
-                                   ;; Required for libterm.
-                                   "-Z" "force-unstable-if-unmarked"
-                                   "-L" "output/target-libs"
-                                   (string-append "src/" name "/lib.rs")
-                                   "-o"
-                                   (string-append "output/target-libs/"
-                                                  (car (string-split name #\/))
-                                                  ".rlib")
-                                   flags)))
-                         '(("libcore")
-                           ("libstd_unicode")
-                           ("liballoc")
-                           ("libcollections")
-                           ("librand")
-                           ("liblibc/src" "--cfg" "stdbuild")
-                           ("libunwind" "-l" "gcc_s")
-                           ("libcompiler_builtins")
-                           ("liballoc_system")
-                           ("libpanic_unwind")
-                           ;; Uses "cc" to link.
-                           ("libstd" "-l" "dl" "-l" "rt" "-l" "pthread")
-                           ("libarena")
-
-                           ;; Test dependencies:
-
-                           ("libgetopts")
-                           ("libterm")
-                           ("libtest")))
-               #t)))
-         ;; This phase is overridden by newer versions.
-         (replace 'check
-           (const #t))
-         ;; This phase is overridden by newer versions.
+           (lambda* (#:key make-flags parallel-build? #:allow-other-keys)
+             (let* ((job-count (if parallel-build?
+                                   (parallel-job-count)
+                                   1))
+                    (job-spec (string-append "-j" (number->string job-count)))
+                    (make-flags* (cons job-spec make-flags)))
+               ;; Adapted from:
+               ;; https://github.com/dtolnay/bootstrap/blob/master/build.sh.
+               (chdir "mrustc")
+               (setenv "MINICARGO_FLAGS" job-spec)
+               (setenv "CARGO_BUILD_JOBS" (number->string job-count))
+               (display "Building rustc...\n")
+               (apply invoke "make" "-f" "minicargo.mk" "output/rustc"
+                      make-flags*)
+               (display "Building cargo...\n")
+               (apply invoke "make" "-f" "minicargo.mk" "output/cargo"
+                      make-flags*)
+               (display "Rebuilding stdlib with rustc...\n")
+               (with-directory-excursion "run_rustc"
+                 (apply invoke "make" "RUST_SRC=../../src/" make-flags*)))))
          (replace 'install
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
-                    (target-system ,(or (%current-target-system)
-                                        (nix-system->gnu-triplet
-                                         (%current-system))))
-                    (out-libs (string-append out "/lib/rustlib/"
-                                             target-system "/lib")))
-                                        ;(setenv "CFG_PREFIX" out)
-               (mkdir-p out-libs)
-               (copy-recursively "output/target-libs" out-libs)
-               (install-file "output/rustc-build/rustc"
-                             (string-append out "/bin"))
-               (install-file "output/rustc-build/rustdoc"
-                             (string-append out "/bin"))
-               (install-file "output/cargo-build/cargo"
-                             (string-append (assoc-ref outputs "cargo")
-                                            "/bin")))
-             #t)))))
-    (build-system gnu-build-system)
-    (native-inputs
-     `(("bison" ,bison) ; For the tests
-       ("cmake" ,cmake-minimal)
-       ("flex" ,flex) ; For the tests
-       ;; FIXME: Rust 1.27 and some later versions require GDB 8.2 specifically.
-       ;; See <https://bugs.gnu.org/37810>.  Use it on all Rusts for simplicity.
-       ("gdb" ,gdb-8.2) ; For the tests
-       ("procps" ,procps) ; For the tests
-       ("python-2" ,python-2)
-       ("rustc-bootstrap" ,mrustc)
-       ("cargo-bootstrap" ,mrustc "cargo")
-       ("pkg-config" ,pkg-config) ; For "cargo"
-       ("which" ,which)))
-    (inputs
-     `(("jemalloc" ,jemalloc-4.5.0)
-       ("llvm" ,llvm-3.9.1)
-       ("openssl" ,openssl-1.0)
-       ("libssh2" ,libssh2) ; For "cargo"
-       ("libcurl" ,curl)))  ; For "cargo"
-
-    ;; rustc invokes gcc, so we need to set its search paths accordingly.
-    ;; Note: duplicate its value here to cope with circular dependencies among
-    ;; modules (see <https://bugs.gnu.org/31392>).
-    (native-search-paths
-     (list (search-path-specification
-            (variable "C_INCLUDE_PATH")
-            (files '("include")))
-           (search-path-specification
-            (variable "CPLUS_INCLUDE_PATH")
-            (files '("include/c++" "include")))
-           (search-path-specification
-            (variable "LIBRARY_PATH")
-            (files '("lib" "lib64")))))
-
-    (supported-systems
-     (delete "i686-linux"               ; fails to build, see #35519
-             %supported-systems))
+                    (cargo (assoc-ref outputs "cargo"))
+                    (bin (string-append out "/bin"))
+                    (rustc (string-append bin "/rustc"))
+                    (cargo-bin (string-append cargo "/bin"))
+                    (lib (string-append out "/lib"))
+                    (gnu-triplet ,(or (%current-target-system)
+                                      (nix-system->gnu-triplet-for-rust)))
+                    (system-lib-prefix (string-append lib "/rustlib/"
+                                                      gnu-triplet "/lib")))
+               (mkdir-p (dirname rustc))
+               (copy-file "run_rustc/output/prefix/bin/rustc_binary" rustc)
+               (wrap-program rustc
+                 `("LD_LIBRARY_PATH" = (,system-lib-prefix)))
+               (mkdir-p lib)
+               (copy-recursively "run_rustc/output/prefix/lib" lib)
+               (install-file "run_rustc/output/prefix/bin/cargo" cargo-bin)))))))
     (synopsis "Compiler for the Rust programming language")
     (description "Rust is a systems programming language that provides memory
 safety and thread safety guarantees.")
-    (home-page "https://www.rust-lang.org")
+    (home-page "https://github.com/thepowersgang/mrustc")
     ;; Dual licensed.
     (license (list license:asl2.0 license:expat))))
 
-(define-public rust-1.20
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.19 "1.20.0"
-          "0542y4rnzlsrricai130mqyxl8r6rd991frb4qsnwb27yigqg91a")))
-    (package
-      (inherit base-rust)
-      (source
-        (origin
-          (inherit (package-source base-rust))
-          (snippet '(begin
-                      (delete-file-recursively "src/jemalloc")
-                      (delete-file-recursively "src/llvm")
-                      #t))
-          (patches '())))
-      (native-inputs
-       `(;; The tests fail with newer versions of GNU Make.
-         ("make" ,gnu-make-4.2)
-         ,@(package-native-inputs base-rust)))
-      (outputs '("out" "doc" "cargo"))
-      ;; Since rust-1.19 is local, it's quite probable that Hydra
-      ;; will build rust-1.19 only as a dependency of rust-1.20.
-      ;; But then Hydra will use the wrong properties, the ones here,
-      ;; for rust-1.19.  Therefore, we copied the properties of
-      ;; rust-1.19 here.
-      (properties '((timeout . 72000)               ;20 hours
-                    (max-silent-time . 18000)))     ;5 hours (for armel)
-      (arguments
-       (substitute-keyword-arguments (package-arguments rust-1.19)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (add-after 'patch-tests 'patch-cargo-tests
-               (lambda _
-                 (substitute* "src/tools/cargo/tests/build.rs"
-                  (("/usr/bin/env") (which "env"))
-                  ;; Guix llvm is compiled without asmjs-unknown-emscripten.
-                  (("fn wasm32_final_outputs") "#[ignore]\nfn wasm32_final_outputs"))
-                 (substitute* "src/tools/cargo/tests/death.rs"
-                  ;; This is stuck when built in container.
-                  (("fn ctrl_c_kills_everyone") "#[ignore]\nfn ctrl_c_kills_everyone"))
-                 ;; Prints test output in the wrong order when built on
-                 ;; i686-linux.
-                 (substitute* "src/tools/cargo/tests/test.rs"
-                   (("fn cargo_test_env") "#[ignore]\nfn cargo_test_env"))
-
-                 ;; These tests pull in a dependency on "git", which changes
-                 ;; too frequently take part in the Rust toolchain.
-                 (substitute* "src/tools/cargo/tests/new.rs"
-                   (("fn author_prefers_cargo") "#[ignore]\nfn author_prefers_cargo")
-                   (("fn finds_author_git") "#[ignore]\nfn finds_author_git")
-                   (("fn finds_local_author_git") "#[ignore]\nfn finds_local_author_git"))
-                 #t))
-             (add-after 'patch-cargo-tests 'ignore-glibc-2.27-incompatible-test
-               ;; https://github.com/rust-lang/rust/issues/47863
-               (lambda _
-                 (substitute* "src/test/run-pass/out-of-stack.rs"
-                   (("// ignore-android") "// ignore-test\n// ignore-android"))
-                 #t))
-             (replace 'configure
-               (lambda* (#:key inputs outputs #:allow-other-keys)
-                 (let* ((out (assoc-ref outputs "out"))
-                        (doc (assoc-ref outputs "doc"))
-                        (gcc (assoc-ref inputs "gcc"))
-                        (gdb (assoc-ref inputs "gdb"))
-                        (binutils (assoc-ref inputs "binutils"))
-                        (python (assoc-ref inputs "python-2"))
-                        (rustc (assoc-ref inputs "rustc-bootstrap"))
-                        (cargo (assoc-ref inputs "cargo-bootstrap"))
-                        (llvm (assoc-ref inputs "llvm"))
-                        (jemalloc (assoc-ref inputs "jemalloc")))
-                   (call-with-output-file "config.toml"
-                     (lambda (port)
-                       (display (string-append "
+(define-public rust-1.30
+  (package
+    (name "rust")
+    (version "1.30.1")
+    (source (origin
+              (inherit (package-source rust-1.29))
+              (uri (rust-uri version))
+              (sha256
+               (base32 "0aavdc1lqv0cjzbqwl5n59yd0bqdlhn0zas61ljf38yrvc18k8rn"))
+              (snippet '(for-each delete-file-recursively
+                                  '("src/jemalloc"
+                                    "src/llvm"
+                                    "src/llvm-emscripten"
+                                    "src/tools/clang"
+                                    "src/tools/lldb")))))
+    (outputs '("out" "cargo"))
+    (properties '((timeout . 72000)           ;20 hours
+                  (max-silent-time . 18000))) ;5 hours (for armel)
+    (build-system gnu-build-system)
+    (arguments
+     ;; Only the final Rust is tested, not the intermediate bootstrap ones,
+     ;; for performance and simplicity.
+     `(#:tests? #f
+       #:imported-modules ,%cargo-utils-modules ;for `generate-all-checksums'
+       #:modules ((guix build utils)
+                  (guix build gnu-build-system)
+                  (ice-9 match)
+                  (srfi srfi-1))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'set-env
+           (lambda* (#:key inputs #:allow-other-keys)
+             (setenv "SHELL" (which "sh"))
+             (setenv "CONFIG_SHELL" (which "sh"))
+             (setenv "CC" (search-input-file inputs "/bin/gcc"))
+             ;; The Guix LLVM package installs only shared libraries.
+             (setenv "LLVM_LINK_SHARED" "1")))
+         (add-after 'unpack 'neuter-tidy
+           ;; We often need to patch tests with various Guix-specific paths.
+           ;; This often increases the line length and makes tidy, rustc's
+           ;; style checker, complain.  We could insert additional newlines or
+           ;; add an "// ignore-tidy-linelength" comment, but as an ignore
+           ;; comment must be used, both approaches are fragile due to
+           ;; upstream formatting changes.  As such, disable running the
+           ;; linter during tests, since it's intended for rustc developers
+           ;; anyway.
+           (lambda _
+             (substitute* "src/bootstrap/builder.rs"
+               ((".*::Tidy,.*")
+                ""))))
+         (add-after 'patch-generated-file-shebangs 'patch-cargo-checksums
+           (lambda* _
+             (use-modules (guix build cargo-utils))
+             (substitute* "src/Cargo.lock"
+               (("(\"checksum .* = )\".*\"" all name)
+                (string-append name "\"" ,%cargo-reference-hash "\"")))
+             (generate-all-checksums "src/vendor")))
+         (replace 'configure
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (gcc (assoc-ref inputs "gcc"))
+                    (python (assoc-ref inputs "python"))
+                    (binutils (assoc-ref inputs "binutils"))
+                    (rustc (assoc-ref inputs "rustc-bootstrap"))
+                    (cargo (assoc-ref inputs "cargo-bootstrap"))
+                    (llvm (assoc-ref inputs "llvm"))
+                    (jemalloc (assoc-ref inputs "jemalloc")))
+               (call-with-output-file "config.toml"
+                 (lambda (port)
+                   (display (string-append "
 [llvm]
 [build]
 cargo = \"" cargo "/bin/cargo" "\"
 rustc = \"" rustc "/bin/rustc" "\"
-docs = true
-python = \"" python "/bin/python2" "\"
-gdb = \"" gdb "/bin/gdb" "\"
+docs = false
+python = \"" python "/bin/python" "\"
 vendor = true
 submodules = false
 [install]
 prefix = \"" out "\"
-docdir = \"" doc "/share/doc/rust" "\"
 sysconfdir = \"etc\"
 [rust]
 default-linker = \"" gcc "/bin/gcc" "\"
 channel = \"stable\"
 rpath = true
-" ;; There are 2 failed codegen tests:
-;; codegen/mainsubprogram.rs and codegen/mainsubprogramstart.rs
-;; These tests require a patched LLVM
-"codegen-tests = false
 [target." ,(nix-system->gnu-triplet-for-rust) "]
 llvm-config = \"" llvm "/bin/llvm-config" "\"
 cc = \"" gcc "/bin/gcc" "\"
@@ -563,473 +383,110 @@ cxx = \"" gcc "/bin/g++" "\"
 ar = \"" binutils "/bin/ar" "\"
 jemalloc = \"" jemalloc "/lib/libjemalloc_pic.a" "\"
 [dist]
-") port)))
-                   #t)))
-             (add-after 'configure 'provide-cc
-               (lambda* (#:key inputs #:allow-other-keys)
-                 (symlink (string-append (assoc-ref inputs "gcc") "/bin/gcc")
-                          "/tmp/cc")
-                 (setenv "PATH" (string-append "/tmp:" (getenv "PATH")))
-                 #t))
-             (add-after 'provide-cc 'configure-archiver
-               (lambda* (#:key inputs #:allow-other-keys)
-                 (substitute* "src/build_helper/lib.rs"
-                  ;; Make sure "ar" is always used as the archiver.
-                  (("\"musl\"") "\"\"")
-                  ;; Then substitute "ar" by our name.
-                  (("\"ar\"") (string-append "\""
-                               (assoc-ref inputs "binutils")
-                               "/bin/ar\"")))
-                 #t))
-             (delete 'patch-cargo-tomls)
-             (add-before 'build 'reset-timestamps-after-changes
-               (lambda* _
-                 (for-each
-                  (lambda (filename)
-                    ;; Rust 1.20.0 treats timestamp 0 as "file doesn't exist".
-                    ;; Therefore, use timestamp 1.
-                    (utime filename 1 1 1 1))
-                  (find-files "." #:directories? #t))
-                 #t))
-             (replace 'build
-               (lambda* _
-                 (invoke "./x.py" "build")
-                 (invoke "./x.py" "build" "src/tools/cargo")))
-             (replace 'check
-               (lambda* _
-                 ;; Disable parallel execution to prevent EAGAIN errors when
-                 ;; running tests.
-                 (invoke "./x.py" "-j1" "test" "-vv")
-                 (invoke "./x.py" "-j1" "test" "src/tools/cargo")
-                 #t))
-             (replace 'install
-               (lambda* (#:key outputs #:allow-other-keys)
-                 (invoke "./x.py" "install")
-                 (substitute* "config.toml"
-                   ;; replace prefix to specific output
-                   (("prefix = \"[^\"]*\"")
-                    (string-append "prefix = \"" (assoc-ref outputs "cargo") "\"")))
-                 (invoke "./x.py" "install" "cargo")))
-             (add-after 'install 'delete-install-logs
-               (lambda* (#:key outputs #:allow-other-keys)
-                 (define (delete-manifest-file out-path file)
-                   (delete-file (string-append out-path "/lib/rustlib/" file)))
-
-                 (let ((out (assoc-ref outputs "out"))
-                       (cargo-out (assoc-ref outputs "cargo")))
-                   (for-each
-                     (lambda (file) (delete-manifest-file out file))
-                     '("install.log"
-                       "manifest-rust-docs"
-                       ,(string-append "manifest-rust-std-"
-                                       (nix-system->gnu-triplet-for-rust))
-                       "manifest-rustc"))
-                   (for-each
-                     (lambda (file) (delete-manifest-file cargo-out file))
-                     '("install.log"
-                       "manifest-cargo"))
-                   #t)))
-             (add-after 'install 'wrap-rustc
-               (lambda* (#:key inputs outputs #:allow-other-keys)
-                 (let ((out (assoc-ref outputs "out"))
-                       (libc (assoc-ref inputs "libc"))
-                       (ld-wrapper (assoc-ref inputs "ld-wrapper")))
-                   ;; Let gcc find ld and libc startup files.
-                   (wrap-program (string-append out "/bin/rustc")
-                     `("PATH" ":" prefix (,(string-append ld-wrapper "/bin")))
-                     `("LIBRARY_PATH" ":" suffix (,(string-append libc "/lib"))))
-                   #t))))))))))
-
-(define-public rust-1.21
-  (let ((base-rust (rust-bootstrapped-package rust-1.20 "1.21.0"
-                    "1yj8lnxybjrybp00fqhxw8fpr641dh8wcn9mk44xjnsb4i1c21qp")))
-    (package
-      (inherit base-rust)
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (add-after 'configure 'remove-ar
-               (lambda* (#:key inputs #:allow-other-keys)
-                 ;; Remove because toml complains about "unknown field".
-                 (substitute* "config.toml"
-                  (("^ar =.*") "\n"))
-                 #t)))))))))
-
-(define-public rust-1.22
-  (let ((base-rust (rust-bootstrapped-package rust-1.21 "1.22.1"
-                    "1lrzzp0nh7s61wgfs2h6ilaqi6iq89f1pd1yaf65l87bssyl4ylb")))
-    (package
-      (inherit base-rust)
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (add-after 'unpack 'remove-flaky-test
-               (lambda _
-                 ;; See <https://github.com/rust-lang/rust/issues/43402>.
-                 (when (file-exists? "src/test/run-make/issue-26092")
-                   (delete-file-recursively "src/test/run-make/issue-26092"))
-                 #t)))))))))
-
-(define-public rust-1.23
-  (let ((base-rust (rust-bootstrapped-package rust-1.22 "1.23.0"
-                    "14fb8vhjzsxlbi6yrn1r6fl5dlbdd1m92dn5zj5gmzfwf4w9ar3l")))
-    (package
-      (inherit base-rust)
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (delete 'configure-archiver)
-             (delete 'remove-ar)
-             (add-after 'unpack 'dont-build-native
-               (lambda _
-                 ;; XXX: Revisit this when we use gcc 6.
-                 (substitute* "src/binaryen/CMakeLists.txt"
-                  (("ADD_COMPILE_FLAG\\(\\\"-march=native\\\"\\)") ""))
-                 #t)))))))))
-
-(define-public rust-1.24
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.23 "1.24.1"
-          "1vv10x2h9kq7fxh2v01damdq8pvlp5acyh1kzcda9sfjx12kv99y")))
-    (package
-      (inherit base-rust)
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (delete 'use-readelf-for-tests)
-             (replace 'patch-aarch64-test
-               (lambda* _
-                 (substitute* "src/librustc_metadata/dynamic_lib.rs"
-                   ;; This test is known to fail on aarch64 and powerpc64le:
-                   ;; https://github.com/rust-lang/rust/issues/45410
-                   (("fn test_loading_cosine") "#[ignore]\nfn test_loading_cosine"))
-                 #t)))))))))
-
-;;; Rust 1.25 release support work with llvm 6--but build with llvm 6 is
-;;; not determenistic due to <https://github.com/rust-lang/rust/issues/50556>.
-;;; Keep using llvm 3.9.1 until builds become determenistic
-(define-public rust-1.25
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.24 "1.25.0"
-          "0baxjr99311lvwdq0s38bipbnj72pn6fgbk6lcq7j555xq53mxpf")))
-    (package
-      (inherit base-rust)
-      (source
-        (origin
-          (inherit (package-source base-rust))
-          (snippet '(begin
-                      (delete-file-recursively "src/jemalloc")
-                      (delete-file-recursively "src/llvm")
-                      (delete-file-recursively "src/llvm-emscripten")
-                      #t))
-          (patches (search-patches
-                     "rust-1.25-accept-more-detailed-gdb-lines.patch"))))
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (add-after 'patch-cargo-tests 'patch-cargo-index-update
-               (lambda _
-                 (substitute* "src/tools/cargo/tests/generate-lockfile.rs"
-                   ;; This test wants to update the crate index.
-                   (("fn no_index_update") "#[ignore]\nfn no_index_update"))
-                 #t))
-             (replace 'patch-aarch64-test
-               (lambda _
-                 (substitute* "src/librustc_metadata/dynamic_lib.rs"
-                   ;; This test is known to fail on aarch64 and powerpc64le:
-                   ;; https://github.com/rust-lang/rust/issues/45410
-                   (("fn test_loading_cosine") "#[ignore]\nfn test_loading_cosine"))
-                 ;; This test fails on aarch64 with llvm@6.0:
-                 ;; https://github.com/rust-lang/rust/issues/49807
-                 ;; other possible solution:
-                 ;; https://github.com/rust-lang/rust/pull/47688
-                 (delete-file "src/test/debuginfo/by-value-self-argument-in-trait-impl.rs")
-                 #t))
-             (delete 'ignore-glibc-2.27-incompatible-test))))))))
-
-(define-public rust-1.26
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.25 "1.26.2"
-          "0047ais0fvmqvngqkdsxgrzhb0kljg8wy85b01kbbjc88hqcz7pv")))
-    (package
-      (inherit base-rust)
-      (source
-        (origin
-          (inherit (package-source base-rust))
-          (patches (search-patches
-                     "rust-coresimd-doctest.patch"
-                     "rust-1.25-accept-more-detailed-gdb-lines.patch"))))
-      (inputs
-       (alist-replace "openssl" (list openssl)
-                      (package-inputs base-rust)))
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             ;; binaryen was replaced with LLD project from LLVM
-             (delete 'dont-build-native)
-             (replace 'check
-               (lambda* _
-                 ;; Enable parallel execution.
-                 (let ((parallel-job-spec
-                        (string-append "-j" (number->string
-                                             (min 4
-                                                  (parallel-job-count))))))
-                   (invoke "./x.py" parallel-job-spec "test" "-vv")
-                   (invoke "./x.py" parallel-job-spec "test"
-                           "src/tools/cargo"))))
-             (replace 'remove-unsupported-tests
-               (lambda* _
-                 ;; Our ld-wrapper cannot process non-UTF8 bytes in LIBRARY_PATH.
-                 ;; <https://lists.gnu.org/archive/html/guix-devel/2017-06/msg00193.html>
-                 (delete-file-recursively "src/test/run-make-fulldeps/linker-output-non-utf8")
-                 #t))
-             (replace 'patch-cargo-tests
-               (lambda* _
-                 (substitute* "src/tools/cargo/tests/testsuite/build.rs"
-                   (("/usr/bin/env") (which "env"))
-                   ;; Guix llvm is compiled without asmjs-unknown-emscripten.
-                   (("fn wasm32_final_outputs") "#[ignore]\nfn wasm32_final_outputs"))
-                 (substitute* "src/tools/cargo/tests/testsuite/death.rs"
-                   ;; This is stuck when built in container.
-                   (("fn ctrl_c_kills_everyone") "#[ignore]\nfn ctrl_c_kills_everyone"))
-                 ;; Prints test output in the wrong order when built on
-                 ;; i686-linux.
-                 (substitute* "src/tools/cargo/tests/testsuite/test.rs"
-                   (("fn cargo_test_env") "#[ignore]\nfn cargo_test_env"))
-
-                 ;; Avoid dependency on "git".
-                 (substitute* "src/tools/cargo/tests/testsuite/new.rs"
-                   (("fn author_prefers_cargo") "#[ignore]\nfn author_prefers_cargo")
-                   (("fn finds_author_git") "#[ignore]\nfn finds_author_git")
-                   (("fn finds_local_author_git") "#[ignore]\nfn finds_local_author_git"))
-                 #t))
-             (add-after 'patch-cargo-tests 'disable-cargo-test-for-nightly-channel
-               (lambda* _
-                 ;; This test failed to work on "nightly" channel builds
-                 ;; https://github.com/rust-lang/cargo/issues/5648
-                 (substitute* "src/tools/cargo/tests/testsuite/resolve.rs"
-                   (("fn test_resolving_minimum_version_with_transitive_deps")
-                    "#[ignore]\nfn test_resolving_minimum_version_with_transitive_deps"))
-                 #t))
-             (replace 'patch-cargo-index-update
-               (lambda* _
-                 (substitute* "src/tools/cargo/tests/testsuite/generate_lockfile.rs"
-                   ;; This test wants to update the crate index.
-                   (("fn no_index_update") "#[ignore]\nfn no_index_update"))
-                 #t))))))
-      (supported-systems
-       (delete "aarch64-linux"          ; fails to build, see #47019
-               (package-supported-systems base-rust))))))
-
-(define-public rust-1.27
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.26 "1.27.2"
-          "0pg1s37bhx9zqbynxyydq5j6q7kij9vxkcv8maz0m25prm88r0cs")))
-    (package
-      (inherit base-rust)
-      (source
-        (origin
-          (inherit (package-source base-rust))
-          (patches (search-patches "rust-coresimd-doctest.patch"
-                                   "rust-bootstrap-stage0-test.patch"
-                                   "rust-1.25-accept-more-detailed-gdb-lines.patch"
-                                   "rust-reproducible-builds.patch"))))
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (add-before 'install 'mkdir-prefix-paths
-               (lambda* (#:key outputs #:allow-other-keys)
-                 ;; As result of https://github.com/rust-lang/rust/issues/36989
-                 ;; `prefix' directory should exist before `install' call
-                 (mkdir-p (assoc-ref outputs "out"))
-                 (mkdir-p (assoc-ref outputs "cargo"))
-                 #t))
-             (add-after 'patch-cargo-tests 'disable-thinlto-test
-               (lambda* _
-                 ;; thinlto required llvm 6.0 for work
-                 (substitute* "src/tools/cargo/tests/testsuite/path.rs"
-                   (("fn thin_lto_works") "#[ignore]\nfn thin_lto_works"))
-                 #t)))))))))
-
-(define-public rust-1.28
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.27 "1.28.0"
-          "11k4rn77bca2rikykkk9fmprrgjswd4x4kaq7fia08vgkir82nhx")))
-    (package
-      (inherit base-rust)
-      (source
-        (origin
-          (inherit (package-source base-rust))
-          (patches (search-patches "rust-coresimd-doctest.patch"
-                                   "rust-bootstrap-stage0-test.patch"
-                                   "rust-1.25-accept-more-detailed-gdb-lines.patch"
-                                   "rust-reproducible-builds.patch"))))
-      (inputs
-       ;; Use LLVM 6.0
-       (alist-replace "llvm" (list llvm-6)
-                      (package-inputs base-rust)))
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (add-after 'configure 'enable-codegen-tests
-               ;; Codegen tests should pass with llvm 6, so enable them.
-               (lambda* _
-                 (substitute* "config.toml"
-                   (("codegen-tests = false") ""))
-                 #t))
-             (add-after 'patch-tests 'disable-amd64-avx-test
-               ;; That test would fail on x86_64 machines without avx.
-               (lambda* _
-                 (substitute* "src/test/run-pass/issue-44056.rs"
-                   (("only-x86_64") "ignore-test"))
-                 #t))
-             ;; This is no longer needed as of 1.28
-             (delete 'disable-cargo-test-for-nightly-channel)
-             ;; The thinlto test should pass with llvm 6.
-             (delete 'disable-thinlto-test))))))))
-
-(define-public rust-1.29
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.28 "1.29.2"
-          "1jb787080z754caa2w3w1amsygs4qlzj9rs1vy64firfmabfg22h")))
-    (package
-      (inherit base-rust)
-      (source
-        (origin
-          (inherit (package-source base-rust))
-          (patches (search-patches "rust-1.25-accept-more-detailed-gdb-lines.patch"
-                                   "rust-reproducible-builds.patch")))))))
-
-(define-public rust-1.30
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.29 "1.30.1"
-          "0aavdc1lqv0cjzbqwl5n59yd0bqdlhn0zas61ljf38yrvc18k8rn")))
-    (package
-      (inherit base-rust)
-      (source
-        (origin
-          (inherit (package-source base-rust))
-          (snippet '(begin
-                      (delete-file-recursively "src/jemalloc")
-                      (delete-file-recursively "src/llvm")
-                      (delete-file-recursively "src/llvm-emscripten")
-                      (delete-file-recursively "src/tools/clang")
-                      (delete-file-recursively "src/tools/lldb")
-                      #t))))
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (add-after 'patch-cargo-tests 'patch-cargo-env-shebang
-               (lambda* (#:key inputs #:allow-other-keys)
-                 (let ((coreutils (assoc-ref inputs "coreutils")))
-                   (substitute* "src/tools/cargo/tests/testsuite/fix.rs"
-                     ;; Cargo has a test which explicitly sets a
-                     ;; RUSTC_WRAPPER environment variable which points
-                     ;; to /usr/bin/env. Since it's not a shebang, it
-                     ;; needs to be manually patched
-                     (("\"/usr/bin/env\"")
-                      (string-append "\"" coreutils "/bin/env\"")))
-                   #t)))
-             (add-after 'patch-cargo-env-shebang 'ignore-cargo-package-tests
-               (lambda* _
-                 (substitute* "src/tools/cargo/tests/testsuite/package.rs"
-                   ;; These tests largely check that cargo outputs warning/error
-                   ;; messages as expected. It seems that cargo outputs an
-                   ;; absolute path to something in the store instead of the
-                   ;; expected relative path (e.g. `[..]`) so we'll ignore
-                   ;; these for now
-                   (("fn include") "#[ignore]\nfn include")
-                   (("fn exclude") "#[ignore]\nfn exclude"))
-                   #t))
-             ;; The test has been moved elsewhere.
-             (replace 'disable-amd64-avx-test
-               (lambda _
-                 (substitute* "src/test/ui/run-pass/issues/issue-44056.rs"
-                  (("only-x86_64") "ignore-test"))
-                  #t)))))))))
-
-(define (patch-command-exec-tests-phase test-path)
-  "The command-exec.rs test moves around between releases.  We need to apply
-a Guix-specific patch to it for each release.  This function generates the phase
-that applies said patch, parametrized by the test-path.  This is done this way
-because the phase is more complex than the equivalents for other tests that
-move around."
- `(lambda* (#:key inputs #:allow-other-keys)
-    (let ((coreutils (assoc-ref inputs "coreutils")))
-      (substitute* ,test-path
-        ;; This test suite includes some tests that the stdlib's
-        ;; `Command` execution properly handles situations where
-        ;; the environment or PATH variable are empty, but this
-        ;; fails since we don't have `echo` available in the usual
-        ;; Linux directories.
-        ;; NB: the leading space is so we don't fail a tidy check
-        ;; for trailing whitespace, and the newlines are to ensure
-        ;; we don't exceed the 100 chars tidy check as well
-        ((" Command::new\\(\"echo\"\\)")
-         (string-append "\nCommand::new(\"" coreutils "/bin/echo\")\n")))
-      #t)))
+") port))))))
+         (replace 'build
+           (lambda* (#:key parallel-build? #:allow-other-keys)
+             (let ((job-spec (string-append
+                              "-j" (if parallel-build?
+                                       (number->string (parallel-job-count))
+                                       "1"))))
+               (invoke "./x.py" job-spec "build")
+               (invoke "./x.py" job-spec "build" "src/tools/cargo"))))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out"))
+                   (cargo-out (assoc-ref outputs "cargo")))
+               (mkdir-p out)
+               (invoke "./x.py" "install")
+               (substitute* "config.toml"
+                 ;; Adjust the prefix to the 'cargo' output.
+                 (("prefix = \"[^\"]*\"")
+                  (format #f "prefix = ~s" cargo-out)))
+               (mkdir-p cargo-out)
+               (invoke "./x.py" "install" "cargo"))))
+         (add-after 'install 'delete-install-logs
+           (lambda* (#:key outputs #:allow-other-keys)
+             (for-each (lambda (f)
+                         (false-if-exception (delete-file f)))
+                       (append-map (lambda (output)
+                                     (find-files (string-append
+                                                  output "/lib/rustlib")
+                                                 "(^install.log$|^manifest-)"))
+                                   (map cdr outputs)))))
+         (add-after 'install 'wrap-rustc
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out"))
+                   (libc (assoc-ref inputs "libc"))
+                   (ld-wrapper (assoc-ref inputs "ld-wrapper")))
+               ;; Let gcc find ld and libc startup files.
+               (wrap-program (string-append out "/bin/rustc")
+                 `("PATH" ":" prefix (,(string-append ld-wrapper "/bin")))
+                 `("LIBRARY_PATH" ":"
+                   suffix (,(string-append libc "/lib"))))))))))
+    (native-inputs
+     `(("cmake" ,cmake-minimal)
+       ("pkg-config" ,pkg-config)       ; For "cargo"
+       ("python" ,python-wrapper)
+       ("rustc-bootstrap" ,rust-1.29)
+       ("cargo-bootstrap" ,rust-1.29 "cargo")
+       ("which" ,which)))
+    (inputs
+     `(("jemalloc" ,jemalloc-4.5.0)
+       ("llvm" ,llvm-7)
+       ("openssl" ,openssl)
+       ("libssh2" ,libssh2)             ; For "cargo"
+       ("libcurl" ,curl)))              ; For "cargo"
+    ;; rustc invokes gcc, so we need to set its search paths accordingly.
+    ;; Note: duplicate its value here to cope with circular dependencies among
+    ;; modules (see <https://bugs.gnu.org/31392>).
+    (native-search-paths
+     (list (search-path-specification
+            (variable "C_INCLUDE_PATH")
+            (files '("include")))
+           (search-path-specification
+            (variable "CPLUS_INCLUDE_PATH")
+            (files '("include/c++" "include")))
+           (search-path-specification
+            (variable "LIBRARY_PATH")
+            (files '("lib" "lib64")))))
+    (supported-systems
+     (delete "i686-linux"  ; fails to build, see bug #35519
+             %supported-systems))
+    (synopsis "Compiler for the Rust progamming language")
+    (description "Rust is a systems programming language that provides memory
+safety and thread safety guarantees.")
+    (home-page "https://www.rust-lang.org")
+    ;; Dual licensed.
+    (license (list license:asl2.0 license:expat))))
 
 (define-public rust-1.31
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.30 "1.31.1"
-          "0sk84ff0cklybcp0jbbxcw7lk7mrm6kb6km5nzd6m64dy0igrlli")))
-    (package
-      (inherit base-rust)
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (add-after 'patch-tests 'patch-command-exec-tests
-               ,(patch-command-exec-tests-phase
-                  "src/test/run-pass/command-exec.rs"))
-             ;; The test has been moved elsewhere.
-             (replace 'disable-amd64-avx-test
-               (lambda _
-                 (substitute* "src/test/ui/issues/issue-44056.rs"
-                  (("only-x86_64") "ignore-test"))
-                 #t))
-             (add-after 'patch-tests 'patch-process-docs-rev-cmd
-               (lambda* _
-                 ;; Disable some doc tests which depend on the "rev" command
-                 ;; https://github.com/rust-lang/rust/pull/58746
-                 (substitute* "src/libstd/process.rs"
-                   (("```rust") "```rust,no_run"))
-                 #t)))))))))
+  (rust-bootstrapped-package
+   rust-1.30 "1.31.1" "0sk84ff0cklybcp0jbbxcw7lk7mrm6kb6km5nzd6m64dy0igrlli"))
 
 (define-public rust-1.32
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.31 "1.32.0"
-          "0ji2l9xv53y27xy72qagggvq47gayr5lcv2jwvmfirx029vlqnac")))
+  (let ((base-rust (rust-bootstrapped-package
+                    rust-1.31 "1.32.0"
+                    "0ji2l9xv53y27xy72qagggvq47gayr5lcv2jwvmfirx029vlqnac")))
     (package
       (inherit base-rust)
       (source
-        (origin
-          (inherit (package-source base-rust))
-          (snippet '(begin (delete-file-recursively "src/llvm")
-                           (delete-file-recursively "src/llvm-emscripten")
-                           (delete-file-recursively "src/tools/clang")
-                           (delete-file-recursively "src/tools/lldb")
-                           (delete-file-recursively "vendor/jemalloc-sys/jemalloc")
-                           #t))
-          (patches (search-patches "rust-reproducible-builds.patch"))
+       (origin
+         (inherit (package-source base-rust))
+         (snippet '(for-each delete-file-recursively
+                             '("src/llvm"
+                               "src/llvm-emscripten"
+                               "src/tools/clang"
+                               "src/tools/lldb"
+                               "vendor/jemalloc-sys/jemalloc")))
           ;; the vendor directory has moved to the root of
           ;; the tarball, so we have to strip an extra prefix
-          (patch-flags '("-p2"))))
-      (inputs
-       ;; Downgrade to LLVM 6, all LTO tests appear to fail with LLVM 7.0.1
-       (alist-replace "llvm" (list llvm-6)
-                      (package-inputs base-rust)))
+         (patch-flags '("-p2"))))
       (arguments
        (substitute-keyword-arguments (package-arguments base-rust)
+         ;; The test suite fails due to LLVM 7, required for the build to be
+         ;; reproducible.
+         ((#:tests? _ #t)
+          #f)
          ((#:phases phases)
           `(modify-phases ,phases
              ;; Cargo.lock and the vendor/ directory have been moved to the
@@ -1040,9 +497,8 @@ move around."
                  (substitute* "Cargo.lock"
                    (("(\"checksum .* = )\".*\"" all name)
                     (string-append name "\"" ,%cargo-reference-hash "\"")))
-                 (generate-all-checksums "vendor")
-                 #t))
-             (add-after 'enable-codegen-tests 'override-jemalloc
+                 (generate-all-checksums "vendor")))
+             (add-after 'configure 'override-jemalloc
                (lambda* (#:key inputs #:allow-other-keys)
                  ;; The compiler is no longer directly built against jemalloc,
                  ;; but rather via the jemalloc-sys crate (which vendors the
@@ -1052,96 +508,59 @@ move around."
                  (substitute* "config.toml"
                    (("^jemalloc =.*$") "")
                    (("[[]rust[]]") "\n[rust]\njemalloc=true\n"))
-                 (setenv "JEMALLOC_OVERRIDE" (string-append (assoc-ref inputs "jemalloc")
-                                                            "/lib/libjemalloc_pic.a"))
-                 #t))
-             ;; Remove no longer relevant steps
-             (delete 'remove-flaky-test)
-             (delete 'patch-aarch64-test))))))))
+                 (setenv "JEMALLOC_OVERRIDE"
+                         (search-input-file inputs
+                                            "/lib/libjemalloc_pic.a")))))))))))
 
 (define-public rust-1.33
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.32 "1.33.0"
-           "152x91mg7bz4ygligwjb05fgm1blwy2i70s2j03zc9jiwvbsh0as")))
+  (let ((base-rust (rust-bootstrapped-package
+                    rust-1.32 "1.33.0"
+                    "152x91mg7bz4ygligwjb05fgm1blwy2i70s2j03zc9jiwvbsh0as")))
     (package
       (inherit base-rust)
       (source
-        (origin
-          (inherit (package-source base-rust))
-          (patches '())
-          (patch-flags '("-p1"))))
+       (origin
+         (inherit (package-source base-rust))
+         (patches '())
+         (patch-flags '("-p1"))))
       (inputs
-       ;; Upgrade to jemalloc@5.1.0
-       (alist-replace "jemalloc" (list jemalloc)
-                      (package-inputs base-rust)))
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (delete 'ignore-cargo-package-tests)
-             (add-after 'configure 'configure-test-threads
-               ;; Several rustc and cargo tests will fail if run on one core
-               ;; https://github.com/rust-lang/rust/issues/59122
-               ;; https://github.com/rust-lang/cargo/issues/6746
-               ;; https://github.com/rust-lang/rust/issues/58907
-               (lambda* (#:key inputs #:allow-other-keys)
-                 (setenv "RUST_TEST_THREADS" "2")
-                 #t)))))))))
+       ;; Upgrade jemalloc.
+       (alist-replace "jemalloc" (list jemalloc) (package-inputs base-rust))))))
 
 (define-public rust-1.34
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.33 "1.34.1"
-           "19s09k7y5j6g3y4d2rk6kg9pvq6ml94c49w6b72dmq8p9lk8bixh")))
+  (let ((base-rust (rust-bootstrapped-package
+                    rust-1.33 "1.34.1"
+                    "19s09k7y5j6g3y4d2rk6kg9pvq6ml94c49w6b72dmq8p9lk8bixh")))
     (package
       (inherit base-rust)
       (source
-        (origin
-          (inherit (package-source base-rust))
-          (snippet '(begin
-                      (delete-file-recursively "src/llvm-emscripten")
-                      (delete-file-recursively "src/llvm-project")
-                      (delete-file-recursively "vendor/jemalloc-sys/jemalloc")
-                      #t)))))))
+       (origin
+         (inherit (package-source base-rust))
+         (snippet '(for-each delete-file-recursively
+                             '("src/llvm-emscripten"
+                               "src/llvm-project"
+                               "vendor/jemalloc-sys/jemalloc"))))))))
 
 (define-public rust-1.35
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.34 "1.35.0"
-           "0bbizy6b7002v1rdhrxrf5gijclbyizdhkglhp81ib3bf5x66kas")))
+  (let ((base-rust (rust-bootstrapped-package
+                    rust-1.34 "1.35.0"
+                    "0bbizy6b7002v1rdhrxrf5gijclbyizdhkglhp81ib3bf5x66kas")))
     (package
       (inherit base-rust)
-      (inputs
-       (alist-replace "llvm" (list llvm-8)
-                      (package-inputs base-rust)))
       (arguments
        (substitute-keyword-arguments (package-arguments base-rust)
          ((#:phases phases)
           `(modify-phases ,phases
-             ;; The tidy test includes a pass which ensures large binaries
-             ;; don't accidentally get checked into the rust git repo.
-             ;; Unfortunately the test assumes that git is always available,
-             ;; so we'll comment out the invocation of this pass.
-             (add-after 'configure 'disable-tidy-bins-check
-               (lambda* _
-                 (substitute* "src/tools/tidy/src/main.rs"
-                   (("bins::check") "//bins::check"))
-                 #t)))))))))
+             (delete 'disable-codegen-tests))))))))
 
 (define-public rust-1.36
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.35 "1.36.0"
-           "06xv2p6zq03lidr0yaf029ii8wnjjqa894nkmrm6s0rx47by9i04")))
-    (package
-      (inherit base-rust)
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (delete 'patch-process-docs-rev-cmd))))))))
+  (rust-bootstrapped-package
+   rust-1.35 "1.36.0" "06xv2p6zq03lidr0yaf029ii8wnjjqa894nkmrm6s0rx47by9i04"))
 
 (define-public rust-1.37
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.36 "1.37.0"
-           "1hrqprybhkhs6d9b5pjskfnc5z9v2l2gync7nb39qjb5s0h703hj")))
+  (let ((base-rust (rust-bootstrapped-package
+                    rust-1.36 "1.37.0"
+                    "1hrqprybhkhs6d9b5pjskfnc5z9v2l2gync7nb39qjb5s0h703hj")))
     (package
       (inherit base-rust)
       (arguments
@@ -1152,36 +571,16 @@ move around."
                (lambda _
                  (let ((cargo-home (string-append (getcwd) "/.cargo")))
                    (mkdir-p cargo-home)
-                   (setenv "CARGO_HOME" cargo-home)
-                   #t))))))))))
+                   (setenv "CARGO_HOME" cargo-home)))))))))))
 
 (define-public rust-1.38
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.37 "1.38.0"
-           "101dlpsfkq67p0hbwx4acqq6n90dj4bbprndizpgh1kigk566hk4")))
-    (package
-      (inherit base-rust)
-      (inputs
-        (alist-replace "llvm" (list llvm-9)
-                       (package-inputs base-rust)))
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (replace 'patch-command-exec-tests
-               ,(patch-command-exec-tests-phase
-                  "src/test/ui/command-exec.rs"))
-             (add-after 'patch-tests 'patch-command-uid-gid-test
-               (lambda _
-                 (substitute* "src/test/ui/command-uid-gid.rs"
-                   (("/bin/sh") (which "sh"))
-                   (("ignore-sgx") "ignore-sgx\n// ignore-tidy-linelength"))
-                 #t)))))))))
+  (rust-bootstrapped-package
+    rust-1.37 "1.38.0" "101dlpsfkq67p0hbwx4acqq6n90dj4bbprndizpgh1kigk566hk4"))
 
 (define-public rust-1.39
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.38 "1.39.0"
-           "0mwkc1bnil2cfyf6nglpvbn2y0zfbv44zfhsd5qg4c9rm6vgd8dl")))
+  (let ((base-rust (rust-bootstrapped-package
+                    rust-1.38 "1.39.0"
+                    "0mwkc1bnil2cfyf6nglpvbn2y0zfbv44zfhsd5qg4c9rm6vgd8dl")))
     (package
       (inherit base-rust)
       (arguments
@@ -1195,136 +594,85 @@ move around."
                  (substitute* "Cargo.lock"
                    (("(checksum = )\".*\"" all name)
                     (string-append name "\"" ,%cargo-reference-hash "\"")))
-                 (generate-all-checksums "vendor")
-                 #t)))))))))
+                 (generate-all-checksums "vendor"))))))))))
 
 (define-public rust-1.40
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.39 "1.40.0"
-           "1ba9llwhqm49w7sz3z0gqscj039m53ky9wxzhaj11z6yg1ah15yx")))
+  (let ((base-rust (rust-bootstrapped-package
+                    rust-1.39 "1.40.0"
+                    "1ba9llwhqm49w7sz3z0gqscj039m53ky9wxzhaj11z6yg1ah15yx")))
     (package
       (inherit base-rust)
       (source
-        (origin
-          (inherit (package-source base-rust))
-          ;; llvm-emscripten is no longer bundled, as that codegen backend
-          ;; got removed.
-          (snippet '(begin
-                      (delete-file-recursively "src/llvm-project")
-                      (delete-file-recursively "vendor/jemalloc-sys/jemalloc")
-                      #t))))
-      (arguments
-       ;; Rust 1.40 does not ship rustc-internal libraries by default
-       ;; (see rustc-dev-split). This means that librustc_driver.so is no
-       ;; longer available in lib/rustlib/$target/lib, which is the directory
-       ;; included in the runpath of librustc_codegen_llvm-llvm.so.
-       ;; This is detected by our validate-runpath phase as an error, but it
-       ;; is harmless as the codegen backend is loaded by librustc_driver.so
-       ;; itself, which must at that point have been already loaded.
-       ;; As such, we skip validating the runpath for Rust 1.40.
-       ;; Rust 1.41 stopped putting the codegen backend in a separate library,
-       ;; which makes this workaround only necessary for this release.
-       (cons* #:validate-runpath? #f
-         (substitute-keyword-arguments (package-arguments base-rust)
-           ((#:phases phases)
-            `(modify-phases ,phases
-               ;; We often need to patch tests with various Guix-specific paths.
-               ;; This often increases the line length and makes tidy, rustc's
-               ;; style checker, complain. We could insert additional newlines
-               ;; or add an "// ignore-tidy-linelength" comment, but as an
-               ;; ignore comment must be used, both approaches are fragile due
-               ;; to upstream formatting changes. As such, disable running the
-               ;; linter during tests, since it's intended for rustc developers
-               ;; anyway.
-               ;;
-               ;; TODO(rebuild-rust): This phase could be added earlier to
-               ;; simplify a significant amount of code, but it would require
-               ;; rebuilding the entire rusty universe.
-               (add-after 'patch-tests 'neuter-tidy
-                 (lambda _
-                   (substitute* "src/bootstrap/builder.rs"
-                     (("^.*::Tidy,") ""))
-                   #t))
-               ;; TODO(rebuild-rust): Adapt the find-files approach for
-               ;; earlier testsuite patches.
-               (replace 'patch-command-uid-gid-test
-                 (lambda _
-                   (match (find-files "src/test" "command-uid-gid\\.rs")
-                     ((file)
-                      (substitute* file
-                        (("/bin/sh") (which "sh")))))
-                   #t))
-               (replace 'patch-command-exec-tests
-                 ,(patch-command-exec-tests-phase
-                    '(match (find-files "src/test" "command-exec\\.rs")
-                       ((file) file))))
-               ;; The test got removed in commit 000fe63b6fc57b09828930cacbab20c2ee6e6d15
-               ;; "Remove painful test that is not pulling its weight"
-               (delete 'remove-unsupported-tests)))))))))
+       (origin
+         (inherit (package-source base-rust))
+         ;; llvm-emscripten is no longer bundled, as that codegen backend
+         ;; got removed.
+         (snippet '(for-each delete-file-recursively
+                             '("src/llvm-project"
+                               "vendor/jemalloc-sys/jemalloc")))))
+       ;; Rust 1.40 does not ship rustc-internal libraries by default (see
+       ;; rustc-dev-split). This means that librustc_driver.so is no longer
+       ;; available in lib/rustlib/$target/lib, which is the directory
+       ;; included in the runpath of librustc_codegen_llvm-llvm.so.  This is
+       ;; detected by our validate-runpath phase as an error, but it is
+       ;; harmless as the codegen backend is loaded by librustc_driver.so
+       ;; itself, which must at that point have been already loaded.  As such,
+       ;; we skip validating the runpath for Rust 1.40.  Rust 1.41 stopped
+       ;; putting the codegen backend in a separate library, which makes this
+       ;; workaround only necessary for this release.
+      (arguments (substitute-keyword-arguments (package-arguments base-rust)
+         ((#:validate-runpath? _ #f)
+          #f))))))
 
 (define-public rust-1.41
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.40 "1.41.1"
-           "0ws5x0fxv57fyllsa6025h3q6j9v3m8nb3syl4x0hgkddq0kvj9q")))
+  (let ((base-rust (rust-bootstrapped-package
+                    rust-1.40 "1.41.1"
+                    "0ws5x0fxv57fyllsa6025h3q6j9v3m8nb3syl4x0hgkddq0kvj9q")))
     (package
       (inherit base-rust)
       (arguments
        (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:validate-runpath? _) #t))))))
+         ((#:validate-runpath? _ #t)
+          #t))))))
 
 (define-public rust-1.42
-  (rust-bootstrapped-package rust-1.41 "1.42.0"
-    "0x9lxs82may6c0iln0b908cxyn1cv7h03n5cmbx3j1bas4qzks6j"))
+  (rust-bootstrapped-package
+   rust-1.41 "1.42.0" "0x9lxs82may6c0iln0b908cxyn1cv7h03n5cmbx3j1bas4qzks6j"))
 
 (define-public rust-1.43
-  (rust-bootstrapped-package rust-1.42 "1.43.0"
-    "18akhk0wz1my6y9vhardriy2ysc482z0fnjdcgs9gy59kmnarxkm"))
+  (rust-bootstrapped-package
+   rust-1.42 "1.43.0" "18akhk0wz1my6y9vhardriy2ysc482z0fnjdcgs9gy59kmnarxkm"))
 
+;; This version needs llvm >= 8.0 and NOT 11
 (define-public rust-1.44
-  (rust-bootstrapped-package rust-1.43 "1.44.1"
-    "0ww4z2v3gxgn3zddqzwqya1gln04p91ykbrflnpdbmcd575n8bky"))
+  (let ((base-rust  (rust-bootstrapped-package
+                      rust-1.43 "1.44.1"
+                      "0ww4z2v3gxgn3zddqzwqya1gln04p91ykbrflnpdbmcd575n8bky")))
+    (package
+      (inherit base-rust)
+      (inputs
+       (alist-replace "llvm" (list llvm-10) (package-inputs base-rust))))))
 
 (define-public rust-1.45
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.44 "1.45.2"
-           "0273a1g3f59plyi1n0azf21qjzwml1yqdnj5z472crz37qggr8xp")))
+  (let ((base-rust (rust-bootstrapped-package
+                    rust-1.44 "1.45.2"
+                    "0273a1g3f59plyi1n0azf21qjzwml1yqdnj5z472crz37qggr8xp")))
     (package
       (inherit base-rust)
-      (source
-        (origin
-          (inherit (package-source base-rust))
-          (patches (search-patches "rust-1.45-linker-locale.patch"))))
-      (inputs
-        (alist-replace "llvm" (list llvm-10)
-                       (package-inputs base-rust)))
       (arguments
-        (substitute-keyword-arguments (package-arguments base-rust)
-          ((#:phases phases)
-           `(modify-phases ,phases
-              ;; These tests make sure that the parser behaves properly when
-              ;; a source file starts with a shebang. Unfortunately,
-              ;; the patch-shebangs phase changes the meaning of these edge-cases.
-              ;; We skip the test since it's drastically unlikely Guix's packaging
-              ;; will introduce a bug here.
-              (add-after 'patch-tests 'skip-shebang-tests
-                (lambda _
-                  (with-directory-excursion "src/test/ui/parser/shebang"
-                    (delete-file "shebang-doc-comment.rs")
-                    (delete-file "sneaky-attrib.rs")
-                    #t)))
-              ;; This test case synchronizes itself by starting a localhost TCP
-              ;; server. This doesn't work as networking is not available.
-              (add-after 'patch-tests 'skip-networking-test
-                (lambda _
-                  (substitute* "src/tools/cargo/tests/testsuite/freshness.rs"
-                    (("fn linking_interrupted" all)
-                     (string-append "#[ignore] " all)))
-                 #t)))))))))
+       (substitute-keyword-arguments (package-arguments base-rust)
+         ((#:phases phases)
+          `(modify-phases ,phases
+             (add-after 'unpack 'set-linker-locale-to-utf8
+               (lambda _
+                 (substitute* (find-files "." "^linker.rs$")
+                   (("linker.env\\(\"LC_ALL\", \"C\"\\);")
+                    "linker.env(\"LC_ALL\", \"en_US.UTF-8\");")))))))))))
 
 (define-public rust-1.46
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.45 "1.46.0"
-           "0a17jby2pd050s24cy4dfc0gzvgcl585v3vvyfilniyvjrqknsid")))
+  (let ((base-rust (rust-bootstrapped-package
+                    rust-1.45 "1.46.0"
+                    "0a17jby2pd050s24cy4dfc0gzvgcl585v3vvyfilniyvjrqknsid")))
     (package
       (inherit base-rust)
       (outputs (cons "rustfmt" (package-outputs base-rust)))
@@ -1333,128 +681,161 @@ move around."
          ((#:phases phases)
           `(modify-phases ,phases
              (replace 'build
-               (lambda* _
-                 (invoke "./x.py" "build")
-                 (invoke "./x.py" "build" "src/tools/cargo")
-                 (invoke "./x.py" "build" "src/tools/rustfmt")))
+               ;; Phase overridden to also build rustfmt.
+               (lambda* (#:key parallel-build? #:allow-other-keys)
+                 (let ((job-spec (string-append
+                                  "-j" (if parallel-build?
+                                           (number->string (parallel-job-count))
+                                           "1"))))
+                   (invoke "./x.py" job-spec "build")
+                   (invoke "./x.py" job-spec "build" "src/tools/cargo")
+                   (invoke "./x.py" job-spec "build" "src/tools/rustfmt"))))
              (replace 'check
-               (lambda* _
-                 ;; Test rustfmt.
-                 (let ((parallel-job-spec
-                        (string-append "-j" (number->string
-                                             (min 4
-                                                  (parallel-job-count))))))
-                   (invoke "./x.py" parallel-job-spec "test" "-vv")
-                   (invoke "./x.py" parallel-job-spec "test"
-                           "src/tools/cargo")
-                   (invoke "./x.py" parallel-job-spec "test"
-                           "src/tools/rustfmt"))))
+               ;; Phase overridden to also test rustfmt.
+               (lambda* (#:key tests? parallel-build? #:allow-other-keys)
+                 (when tests?
+                   (let ((job-spec (string-append
+                                    "-j" (if parallel-build?
+                                             (number->string (parallel-job-count))
+                                             "1"))))
+                     (invoke "./x.py" job-spec "test" "-vv")
+                     (invoke "./x.py" job-spec "test" "src/tools/cargo")
+                     (invoke "./x.py" job-spec "test" "src/tools/rustfmt")))))
              (replace 'install
+               ;; Phase overridden to also install rustfmt.
                (lambda* (#:key outputs #:allow-other-keys)
                  (invoke "./x.py" "install")
                  (substitute* "config.toml"
-                   ;; replace prefix to specific output
+                   ;; Adjust the prefix to the 'cargo' output.
                    (("prefix = \"[^\"]*\"")
-                    (string-append "prefix = \"" (assoc-ref outputs "cargo") "\"")))
+                    (format #f "prefix = ~s" (assoc-ref outputs "cargo"))))
                  (invoke "./x.py" "install" "cargo")
                  (substitute* "config.toml"
-                   ;; replace prefix to specific output
+                   ;; Adjust the prefix to the 'rustfmt' output.
                    (("prefix = \"[^\"]*\"")
-                    (string-append "prefix = \"" (assoc-ref outputs "rustfmt") "\"")))
-                 (invoke "./x.py" "install" "rustfmt")))
-             (replace 'delete-install-logs
-               (lambda* (#:key outputs #:allow-other-keys)
-                 (define (delete-manifest-file out-path file)
-                   (delete-file (string-append out-path "/lib/rustlib/" file)))
-
-                 (let ((out (assoc-ref outputs "out"))
-                       (cargo-out (assoc-ref outputs "cargo"))
-                       (rustfmt-out (assoc-ref outputs "rustfmt")))
-                   (for-each
-                     (lambda (file) (delete-manifest-file out file))
-                     '("install.log"
-                       "manifest-rust-docs"
-                       ,(string-append "manifest-rust-std-"
-                                       (nix-system->gnu-triplet-for-rust))
-                       "manifest-rustc"))
-                   (for-each
-                     (lambda (file) (delete-manifest-file cargo-out file))
-                     '("install.log"
-                       "manifest-cargo"))
-                   (for-each
-                     (lambda (file) (delete-manifest-file rustfmt-out file))
-                     '("install.log"
-                       "manifest-rustfmt-preview"))
-                   #t))))))))))
+                    (format #f "prefix = ~s" (assoc-ref outputs "rustfmt"))))
+                 (invoke "./x.py" "install" "rustfmt"))))))))))
 
 (define-public rust-1.47
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.46 "1.47.0"
-          "07fqd2vp7cf1ka3hr207dnnz93ymxml4935vp74g4is79h3dz19i")))
-    (package
-      (inherit base-rust)
-      (inputs
-        (alist-replace "llvm" (list llvm-11)
-                       (package-inputs base-rust)))
-      (arguments
-       (substitute-keyword-arguments (package-arguments base-rust)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             ;; The source code got rearranged: libstd is now in the newly created library folder.
-             (replace 'patch-tests
-               (lambda* (#:key inputs #:allow-other-keys)
-                 (let ((bash (assoc-ref inputs "bash")))
-                   (substitute* "library/std/src/process.rs"
-                     (("\"/bin/sh\"") (string-append "\"" bash "/bin/sh\"")))
-                   ;; <https://lists.gnu.org/archive/html/guix-devel/2017-06/msg00222.html>
-                   (substitute* "library/std/src/sys/unix/process/process_common.rs"
-                     (("fn test_process_mask") "#[allow(unused_attributes)]
-    #[ignore]
-    fn test_process_mask"))
-                   #t)))
-             (delete 'patch-cargo-checksums)
-             (add-after 'patch-generated-file-shebangs 'patch-cargo-checksums
-               ;; Generate checksums after patching generated files (in
-               ;; particular, vendor/jemalloc/rep/Makefile).
-               (lambda* _
-                 (use-modules (guix build cargo-utils))
-                 (substitute* "Cargo.lock"
-                   (("(checksum = )\".*\"" all name)
-                    (string-append name "\"" ,%cargo-reference-hash "\"")))
-                 (generate-all-checksums "vendor")
-                 #t)))))))))
+  (rust-bootstrapped-package
+    rust-1.46 "1.47.0" "07fqd2vp7cf1ka3hr207dnnz93ymxml4935vp74g4is79h3dz19i"))
 
 (define-public rust-1.48
-  (let ((base-rust
-         (rust-bootstrapped-package rust-1.47 "1.48.0"
-           "0fz4gbb5hp5qalrl9lcl8yw4kk7ai7wx511jb28nypbxninkwxhf")))
+  (rust-bootstrapped-package
+   rust-1.47 "1.48.0" "0fz4gbb5hp5qalrl9lcl8yw4kk7ai7wx511jb28nypbxninkwxhf"))
+
+(define-public rust-1.49
+  (let ((base-rust (rust-bootstrapped-package
+                    rust-1.48 "1.49.0"
+                    "0yf7kll517398dgqsr7m3gldzj0iwsp3ggzxrayckpqzvylfy2mm")))
     (package
       (inherit base-rust)
-      (source
-        (origin
-          (inherit (package-source base-rust))
-          ;; New patch required due to the second part of the source code rearrangement:
-          ;; the relevant source code is now in the compiler directory.
-          (patches (search-patches "rust-1.48-linker-locale.patch"))))
+      (outputs (cons "doc" (package-outputs base-rust)))
       (arguments
        (substitute-keyword-arguments (package-arguments base-rust)
+         ((#:tests? _ #f)
+          #t)
          ((#:phases phases)
           `(modify-phases ,phases
-             ;; Some tests got split out into separate files.
-             (replace 'patch-tests
+             (add-after 'unpack 'relax-gdb-auto-load-safe-path
+               ;; Allow GDB to load binaries from any location, otherwise the
+               ;; gdbinfo tests fail.  This is only useful when testing with a
+               ;; GDB version newer than 8.2.
+               (lambda _
+                 (setenv "HOME" (getcwd))
+                 (with-output-to-file (string-append (getenv "HOME") "/.gdbinit")
+                   (lambda _
+                     (format #t "set auto-load safe-path /~%")))
+                 ;; Do not launch gdb with '-nx' which causes it to not execute
+                 ;; any init file.
+                 (substitute* "src/tools/compiletest/src/runtest.rs"
+                   (("\"-nx\".as_ref\\(\\), ")
+                    ""))))
+             (add-after 'unpack 'patch-cargo-env-shebang
+               (lambda _
+                 (substitute* '("src/tools/cargo/tests/testsuite/build.rs"
+                                "src/tools/cargo/tests/testsuite/fix.rs")
+                   ;; The cargo *_wrapper tests set RUSTC.*WRAPPER environment
+                   ;; variable which points to /usr/bin/env.  Since it's not a
+                   ;; shebang, it needs to be manually patched.
+                   (("/usr/bin/env")
+                    (which "env")))))
+             (add-after 'unpack 'disable-tests-requiring-git
+               (lambda _
+                 (substitute* "src/tools/cargo/tests/testsuite/new.rs"
+                   (("fn author_prefers_cargo")
+                    "#[ignore]\nfn author_prefers_cargo")
+                   (("fn finds_author_git")
+                    "#[ignore]\nfn finds_author_git")
+                   (("fn finds_local_author_git")
+                    "#[ignore]\nfn finds_local_author_git"))))
+             (add-after 'unpack 'patch-command-exec-tests
+               ;; This test suite includes some tests that the stdlib's
+               ;; `Command` execution properly handles in situations where
+               ;; the environment or PATH variable are empty, but this fails
+               ;; since we don't have `echo` available at its usual FHS
+               ;; location.
+               (lambda _
+                 (substitute* (match (find-files "." "^command-exec.rs$")
+                                ((file) file))
+                   (("Command::new\\(\"echo\"\\)")
+                    (format #f "Command::new(~s)" (which "echo"))))))
+             (add-after 'unpack 'patch-command-uid-gid-test
+               (lambda _
+                 (substitute* (match (find-files "." "^command-uid-gid.rs$")
+                                ((file) file))
+                   (("/bin/sh")
+                    (which "sh")))))
+             (add-after 'unpack 'skip-shebang-tests
+               ;; This test make sure that the parser behaves properly when a
+               ;; source file starts with a shebang. Unfortunately, the
+               ;; patch-shebangs phase changes the meaning of these edge-cases.
+               ;; We skip the test since it's drastically unlikely Guix's
+               ;; packaging will introduce a bug here.
+               (lambda _
+                 (delete-file "src/test/ui/parser/shebang/sneaky-attrib.rs")))
+             (add-after 'unpack 'patch-process-tests
                (lambda* (#:key inputs #:allow-other-keys)
                  (let ((bash (assoc-ref inputs "bash")))
                    (substitute* "library/std/src/process/tests.rs"
-                     (("\"/bin/sh\"") (string-append "\"" bash "/bin/sh\"")))
+                     (("\"/bin/sh\"")
+                      (string-append "\"" bash "/bin/sh\"")))
                    (substitute* "library/std/src/sys/unix/process/process_common/tests.rs"
-                     (("fn test_process_mask") "#[allow(unused_attributes)]
+                     (("fn test_process_mask")
+                      "#[allow(unused_attributes)]
     #[ignore]
-    fn test_process_mask"))
-                   #t))))))))))
-
-(define-public rust-1.49
-  (rust-bootstrapped-package rust-1.48 "1.49.0"
-    "0yf7kll517398dgqsr7m3gldzj0iwsp3ggzxrayckpqzvylfy2mm"))
+    fn test_process_mask")))))
+             (add-after 'unpack 'disable-interrupt-tests
+               (lambda _
+                 ;; This test hangs in the build container; disable it.
+                 (substitute* (match (find-files "." "^freshness.rs$")
+                                ((file) file))
+                   (("fn linking_interrupted")
+                    "#[ignore]\nfn linking_interrupted"))
+                 ;; Likewise for the ctrl_c_kills_everyone test.
+                 (substitute* (match (find-files "." "^death.rs$")
+                                ((file) file))
+                   (("fn ctrl_c_kills_everyone")
+                    "#[ignore]\nfn ctrl_c_kills_everyone"))))
+             (add-after 'configure 'enable-docs
+               (lambda _
+                 (substitute* "config.toml"
+                   (("docs = false")
+                    "docs = true"))))
+             (add-after 'configure 'add-gdb-to-config
+               (lambda* (#:key inputs #:allow-other-keys)
+                 (let ((gdb (assoc-ref inputs "gdb")))
+                   (substitute* "config.toml"
+                     (("^python =.*" all)
+                      (string-append all
+                                     "gdb = \"" gdb "/bin/gdb\"\n"))))))))))
+      ;; Add test inputs.
+      (native-inputs (cons*
+                      ;; The tests fail when using GDB 10 (see:
+                      ;; https://github.com/rust-lang/rust/issues/79009).
+                      `("gdb" ,gdb-9.2)
+                      `("procps" ,procps)
+                      (package-native-inputs base-rust))))))
 
 (define-public rust-1.50
   (rust-bootstrapped-package rust-1.49 "1.50.0"
@@ -1474,5 +855,8 @@ move around."
         (alist-replace "llvm" (list llvm-12)
                        (package-inputs base-rust))))))
 
-;; TODO(staging): Bump this variable to the latest packaged rust.
-(define-public rust rust-1.45)
+;;; Note: Only the latest versions of Rust are supported and tested.  The
+;;; intermediate rusts are built for bootstrapping purposes and should not
+;;; be relied upon.  This is to ease maintenance and reduce the time
+;;; required to build the full Rust bootstrap chain.
+(define-public rust rust-1.49)
diff --git a/gnu/packages/scheme.scm b/gnu/packages/scheme.scm
index fa17b9d566..3a87dad69f 100644
--- a/gnu/packages/scheme.scm
+++ b/gnu/packages/scheme.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2018, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2018, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
 ;;; Copyright © 2015, 2016 Federico Beffa <beffa@fbengineering.ch>
 ;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
@@ -126,10 +126,6 @@
                (("\\./configure")
                 (string-append (which "sh") " configure")))
              #t))
-         ;; FIXME: the texlive-union insists on regenerating fonts.  It stores
-         ;; them in HOME, so it needs to be writeable.
-         (add-before 'build 'set-HOME
-           (lambda _ (setenv "HOME" "/tmp") #t))
          (replace 'build
            (lambda* (#:key system outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out")))
@@ -177,7 +173,7 @@
        ("autoconf" ,autoconf)
        ("automake" ,automake)
        ("libtool" ,libtool)
-       ("texlive" ,(texlive-union (list texlive-tex-texinfo)))
+       ("texlive" ,(texlive-updmap.cfg (list texlive-tex-texinfo)))
        ("texinfo" ,texinfo)
        ("m4" ,m4)))
     (inputs
@@ -625,8 +621,7 @@ utility functions for all standard Scheme implementations.")
          (replace 'build
                   (lambda* (#:key inputs outputs #:allow-other-keys)
                     (setenv "SCHEME_LIBRARY_PATH"
-                            (string-append (assoc-ref inputs "slib")
-                                           "/lib/slib/"))
+                            (search-input-directory inputs "lib/slib"))
                     (invoke "make" "scmlit" "CC=gcc")
                     (invoke "make" "all")))
          (add-after 'install 'post-install
@@ -636,8 +631,7 @@ utility functions for all standard Scheme implementations.")
                         (delete-file req)
                         (format (open req (logior O_WRONLY O_CREAT))
                                 "(define (library-vicinity) ~s)\n"
-                                (string-append (assoc-ref inputs "slib")
-                                               "/lib/slib/"))
+                                (search-input-directory inputs "lib/slib"))
 
                         ;; We must generate the slibcat file.
                         (invoke (string-append out "/bin/scm")
diff --git a/gnu/packages/screen.scm b/gnu/packages/screen.scm
index 4426d9d562..502e8f11af 100644
--- a/gnu/packages/screen.scm
+++ b/gnu/packages/screen.scm
@@ -132,14 +132,13 @@ controlling terminal and attach to it later.")
          (add-after
           'install 'wrap-python-scripts
           (lambda* (#:key inputs outputs #:allow-other-keys)
-            (let* ((python (string-append (assoc-ref inputs "python")
-                                          "/bin/python"))
+            (let* ((python (search-input-file inputs "/bin/python"))
                    (out    (assoc-ref outputs "out"))
                    (config (string-append out "/bin/byobu-config"))
                    (select (string-append out "/bin/byobu-select-session")))
               (wrap-program config
                 `("BYOBU_PYTHON" = (,python))
-                `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH"))))
+                `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH"))))
               (wrap-program select
                 `("BYOBU_PYTHON" = (,python)))
               #t))))))
diff --git a/gnu/packages/sdl.scm b/gnu/packages/sdl.scm
index 128bd95af8..f2afe763c5 100644
--- a/gnu/packages/sdl.scm
+++ b/gnu/packages/sdl.scm
@@ -115,7 +115,7 @@ joystick, and graphics hardware.")
 (define-public sdl2
   (package (inherit sdl)
     (name "sdl2")
-    (version "2.0.12")
+    (version "2.0.14")
     (source (origin
              (method url-fetch)
              (uri
@@ -123,7 +123,7 @@ joystick, and graphics hardware.")
                              version ".tar.gz"))
              (sha256
               (base32
-               "0qy8wbqvfkb5ps8kxgaaf2zzpkjqbsw712hlp74znbn0jpv6i4il"))))
+               "1g1jahknv5r4yhh1xq5sf0md20ybdw1zh1i15lry26sq39bmn8fq"))))
     (arguments
      (substitute-keyword-arguments (package-arguments sdl)
        ((#:configure-flags flags)
diff --git a/gnu/packages/security-token.scm b/gnu/packages/security-token.scm
index f8c9661df1..f722c27cd7 100644
--- a/gnu/packages/security-token.scm
+++ b/gnu/packages/security-token.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Mike Gerwitz <mtg@gnu.org>
 ;;; Copyright © 2016 Marius Bakke <mbakke@fastmail.com>
@@ -10,6 +10,7 @@
 ;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2020 Raphaël Mélotte <raphael.melotte@mind.be>
 ;;; Copyright © 2021 Antero Mejr <antero@kodmin.com>
+;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re>
 ;;; Copyright © 2021 Sergey Trofimov <sarg@sarg.org.ru>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -224,14 +225,14 @@ with a PKCS #11 Cryptographic Token Interface.")
 (define-public pcsc-lite
   (package
     (name "pcsc-lite")
-    (version "1.9.0")
+    (version "1.9.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://pcsclite.apdu.fr/files/"
                                   "pcsc-lite-" version ".tar.bz2"))
               (sha256
                (base32
-                "1y9f9zipnrmgiw0mxrvcgky8vfrcmg6zh40gbln5a93i2c1x8j01"))))
+                "0fk8bvjpcci43iq2jzlvkml8bzjxclhxlg291ykk7a3ng2dpii3k"))))
     (build-system gnu-build-system)
     (arguments
      `(#:configure-flags '("--enable-usbdropdir=/var/lib/pcsc/drivers"
@@ -302,8 +303,8 @@ website for more information about Yubico and the YubiKey.")
          ;; configuration file at runtime.
          (add-after 'unpack 'set-default-libpcsclite.so.1-path
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((libpcsclite (string-append (assoc-ref inputs "pcsc-lite")
-                                               "/lib/libpcsclite.so.1")))
+             (let ((libpcsclite (search-input-file inputs
+                                                   "/lib/libpcsclite.so.1")))
                (substitute* "configure"
                  (("DEFAULT_PCSC_PROVIDER=\"libpcsclite\\.so\\.1\"")
                   (string-append
@@ -441,8 +442,8 @@ retrieve a YubiKey's serial number, and so forth.")
                (("lib = \"libpcsclite\\.so\\.1\";")
                 (simple-format #f
                                "lib = \"~a\";"
-                               (string-append (assoc-ref inputs "pcsc-lite")
-                                              "/lib/libpcsclite.so.1"))))
+                               (search-input-file inputs
+                                                  "/lib/libpcsclite.so.1"))))
              #t)))))
     (inputs
      `(("pcsc-lite" ,pcsc-lite)))
@@ -613,10 +614,11 @@ your existing infrastructure.")
          (add-after 'unpack 'install-public-suffix-list
            (lambda* (#:key inputs #:allow-other-keys)
              (copy-file
-              (string-append (assoc-ref inputs "public-suffix-list")
-                             "/share/public-suffix-list-"
-                             ,(package-version public-suffix-list)
-                             "/public_suffix_list.dat")
+              (search-input-file inputs
+                                 (string-append
+                                  "/share/public-suffix-list-"
+                                  ,(package-version public-suffix-list)
+                                  "/public_suffix_list.dat"))
               "fido2/public_suffix_list.dat")
              #t)))))
     (propagated-inputs
diff --git a/gnu/packages/selinux.scm b/gnu/packages/selinux.scm
index 4c2228871f..8a75538d10 100644
--- a/gnu/packages/selinux.scm
+++ b/gnu/packages/selinux.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2016, 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2019, 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -47,47 +48,40 @@
 (define-public libsepol
   (package
     (name "libsepol")
-    (version "3.0")
-    (source (let ((release "20191204"))
-              (origin
-                (method git-fetch)
-                (uri (git-reference
-                      (url "https://github.com/SELinuxProject/selinux")
-                      (commit release)))
-                (file-name (string-append "selinux-" release "-checkout"))
-                (sha256
-                 (base32
-                  "05rpzm72cgprd0ccr6lvx9hm8j8b5nkqi4avshlsyg7s3sdlcxjs")))))
+    (version "3.2")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                     (url "https://github.com/SELinuxProject/selinux")
+                     (commit version)))
+              (file-name (git-file-name "selinux" version))
+              (sha256
+               (base32
+                "03p3lmvrvkcvsmiczsjzhyfgxlxdkdyq0p8igv3s3hdak5n92jjn"))))
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f ; tests require checkpolicy, which requires libsepol
        #:test-target "test"
        #:make-flags
-       (let ((out (assoc-ref %outputs "out"))
-             (target ,(%current-target-system)))
+       (let ((out (assoc-ref %outputs "out")))
          (list (string-append "PREFIX=" out)
                (string-append "SHLIBDIR=" out "/lib")
                (string-append "MAN3DIR=" out "/share/man/man3")
                (string-append "MAN5DIR=" out "/share/man/man5")
                (string-append "MAN8DIR=" out "/share/man/man8")
                (string-append "LDFLAGS=-Wl,-rpath=" out "/lib")
-               (string-append "CC="
-                              (if target
-                                  (string-append (assoc-ref %build-inputs "cross-gcc")
-                                                 "/bin/" target "-gcc")
-                                  "gcc"))))
+               (string-append "CC=" ,(cc-for-target))))
        #:phases
        (modify-phases %standard-phases
          (delete 'configure)
          (add-after 'unpack 'enter-dir
-           (lambda _ (chdir ,name) #t))
+           (lambda _ (chdir ,name)))
          (add-after 'enter-dir 'portability
            (lambda _
              (substitute* "src/ibpkeys.c"
                (("#include \"ibpkey_internal.h\"" line)
                 (string-append line "\n#include <inttypes.h>\n"))
-               (("%#lx") "%#\" PRIx64 \""))
-             #t)))))
+               (("%#lx") "%#\" PRIx64 \"")))))))
     (native-inputs
      `(("flex" ,flex)))
     (home-page "https://selinuxproject.org/")
@@ -106,23 +100,18 @@ boolean settings).")
     (arguments
      `(#:tests? #f ; there is no check target
        #:make-flags
-       (let ((out (assoc-ref %outputs "out"))
-             (target ,(%current-target-system)))
+       (let ((out (assoc-ref %outputs "out")))
          (list (string-append "PREFIX=" out)
                (string-append "LIBSEPOLA="
                               (assoc-ref %build-inputs "libsepol")
                               "/lib/libsepol.a")
-               (string-append "CC="
-                              (if target
-                                  (string-append (assoc-ref %build-inputs "cross-gcc")
-                                                 "/bin/" target "-gcc")
-                                  "gcc"))))
+               (string-append "CC=" ,(cc-for-target))))
        #:phases
        (modify-phases %standard-phases
          (delete 'configure)
          (delete 'portability)
          (add-after 'unpack 'enter-dir
-           (lambda _ (chdir ,name) #t)))))
+           (lambda _ (chdir ,name))))))
     (inputs
      `(("libsepol" ,libsepol)))
     (native-inputs
@@ -159,7 +148,7 @@ module into a binary representation.")
         `(modify-phases ,phases
            (delete 'portability)
            (replace 'enter-dir
-             (lambda _ (chdir ,name) #t))
+             (lambda _ (chdir ,name)))
            (add-after 'build 'pywrap
              (lambda* (#:key make-flags #:allow-other-keys)
                (apply invoke "make" "pywrap" make-flags)))
@@ -209,13 +198,12 @@ the core SELinux management utilities.")
         `(modify-phases ,phases
            (delete 'portability)
            (replace 'enter-dir
-             (lambda _ (chdir ,name) #t))
+             (lambda _ (chdir ,name)))
            (add-before 'install 'adjust-semanage-conf-location
              (lambda _
                (substitute* "src/Makefile"
                  (("DEFAULT_SEMANAGE_CONF_LOCATION=/etc")
-                  "DEFAULT_SEMANAGE_CONF_LOCATION=$(PREFIX)/etc"))
-               #t))
+                  "DEFAULT_SEMANAGE_CONF_LOCATION=$(PREFIX)/etc"))))
            (add-after 'build 'pywrap
              (lambda* (#:key make-flags #:allow-other-keys)
                (apply invoke "make" "pywrap" make-flags)))
@@ -256,7 +244,7 @@ binary policies.")
         `(modify-phases ,phases
            (delete 'portability)
            (replace 'enter-dir
-             (lambda _ (chdir ,name) #t))))))
+             (lambda _ (chdir ,name)))))))
     (inputs
      `(("libsepol" ,libsepol)))
     (native-inputs
@@ -279,7 +267,7 @@ binary policies.")
             `(modify-phases ,phases
                (delete 'portability)
                (replace 'enter-dir
-                 (lambda _ (chdir "python/sepolgen") #t))
+                 (lambda _ (chdir "python/sepolgen")))
                ;; By default all Python files would be installed to
                ;; $out/gnu/store/...-python-.../, so we override the
                ;; PACKAGEDIR to fix this.
@@ -301,8 +289,7 @@ binary policies.")
                                         (assoc-ref inputs "python"))
                                        "/site-packages/sepolgen")))
                      (substitute* "src/share/Makefile"
-                       (("\\$\\(DESTDIR\\)") (assoc-ref outputs "out"))))
-                   #t)))))))
+                       (("\\$\\(DESTDIR\\)") (assoc-ref outputs "out")))))))))))
     (inputs
      `(("python" ,python-wrapper)))
     (native-inputs '())
@@ -342,8 +329,7 @@ based on required access.")
          (add-after 'unpack 'set-SEPOL-variable
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "SEPOL"
-                     (string-append (assoc-ref inputs "libsepol")
-                                    "/lib/libsepol.a"))))
+                     (search-input-file inputs "/lib/libsepol.a"))))
          (add-after 'unpack 'remove-Werror
            (lambda _
              (substitute* "setup.py"
@@ -379,7 +365,7 @@ tools, and libraries designed to facilitate SELinux policy analysis.")
      `(#:test-target "test"
        #:make-flags
        (let ((out (assoc-ref %outputs "out")))
-         (list "CC=gcc"
+         (list (string-append "CC=" ,(cc-for-target))
                (string-append "PREFIX=" out)
                (string-append "LOCALEDIR=" out "/share/locale")
                (string-append "BASHCOMPLETIONDIR=" out
@@ -401,9 +387,8 @@ tools, and libraries designed to facilitate SELinux policy analysis.")
        #:phases
        (modify-phases %standard-phases
          (delete 'configure)
-         (delete 'portability)
          (add-after 'unpack 'enter-dir
-           (lambda _ (chdir ,name) #t))
+           (lambda _ (chdir ,name)))
          (add-after 'enter-dir 'ignore-/usr-tests
            (lambda* (#:key inputs #:allow-other-keys)
              ;; Rewrite lookup paths for header files.
@@ -411,10 +396,9 @@ tools, and libraries designed to facilitate SELinux policy analysis.")
                             "setfiles/Makefile"
                             "run_init/Makefile")
                (("/usr(/include/security/pam_appl.h)" _ file)
-                (string-append (assoc-ref inputs "pam") file))
+                (search-input-file inputs file))
                (("/usr(/include/libaudit.h)" _ file)
-                (string-append (assoc-ref inputs "audit") file)))
-             #t)))))
+                (search-input-file inputs file))))))))
     (inputs
      `(("audit" ,audit)
        ("pam" ,linux-pam)
diff --git a/gnu/packages/sequoia.scm b/gnu/packages/sequoia.scm
index 2c68f43e36..719a9d2ef4 100644
--- a/gnu/packages/sequoia.scm
+++ b/gnu/packages/sequoia.scm
@@ -70,7 +70,7 @@
        ("sqlite" ,sqlite)))
     (arguments
      `(#:tests? #f ;; building the tests requires 9.7GB total
-       #:rust ,rust-1.46
+       #:rust ,rust
        #:cargo-inputs
        (("rust-anyhow" ,rust-anyhow-1)
         ("rust-backtrace" ,rust-backtrace-0.3)
diff --git a/gnu/packages/serialization.scm b/gnu/packages/serialization.scm
index 8f292ae408..7fd083f93d 100644
--- a/gnu/packages/serialization.scm
+++ b/gnu/packages/serialization.scm
@@ -10,6 +10,7 @@
 ;;; Copyright © 2017 Nikita <nikita@n0.is>
 ;;; Copyright © 2017, 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Joshua Sierles, Nextjournal <joshua@nextjournal.com>
+;;; Copyright © 2020 Martin Becze <mjbecze@riseup.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -106,8 +107,7 @@ implement RPC protocols.")
              (let ((gcc (assoc-ref inputs  "gcc")))
                (setenv "CPLUS_INCLUDE_PATH"
                        (string-join
-                        (cons* (string-append (assoc-ref inputs "libcxx+libcxxabi")
-                                              "/include/c++/v1")
+                        (cons* (search-input-directory inputs "include/c++/v1")
                                ;; Hide GCC's C++ headers so that they do not interfere with
                                ;; the Clang headers.
                                (delete (string-append gcc "/include/c++")
@@ -359,16 +359,15 @@ that implements both the msgpack and msgpack-rpc specifications.")
 (define-public jsoncpp
   (package
     (name "jsoncpp")
-    (version "1.9.2")
+    (version "1.9.4")
     (home-page "https://github.com/open-source-parsers/jsoncpp")
     (source (origin
               (method git-fetch)
               (uri (git-reference (url home-page) (commit version)))
               (file-name (git-file-name name version))
-              (patches (search-patches "jsoncpp-fix-inverted-case.patch"))
               (sha256
                (base32
-                "037d1b1qdmn3rksmn1j71j26bv4hkjv7sn7da261k853xb5899sg"))))
+                "0qnx5y6c90fphl9mj9d20j2dfgy6s5yr5l0xnzid0vh71zrp6jwv"))))
     (build-system cmake-build-system)
     (arguments
      `(#:configure-flags '("-DBUILD_SHARED_LIBS:BOOL=YES"
diff --git a/gnu/packages/shells.scm b/gnu/packages/shells.scm
index f2d5834faa..a694790fe3 100644
--- a/gnu/packages/shells.scm
+++ b/gnu/packages/shells.scm
@@ -16,6 +16,7 @@
 ;;; Copyright © 2020 Brice Waegeneire <brice@waegenei.re>
 ;;; Copyright © 2020 Ryan Prior <rprior@protonmail.com>
 ;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2020 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2021 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;; Copyright © 2021 Felix Gruber <felgru@posteo.net>
 ;;;
@@ -392,7 +393,7 @@ written by Paul Haahr and Byron Rakitzis.")
 (define-public tcsh
   (package
     (name "tcsh")
-    (version "6.22.02")
+    (version "6.22.03")
     (source (origin
               (method url-fetch)
               ;; Old tarballs are moved to old/.
@@ -402,7 +403,7 @@ written by Paul Haahr and Byron Rakitzis.")
                                         "old/tcsh-" version ".tar.gz")))
               (sha256
                (base32
-                "0nw8prz1n0lmr82wnpyhrzmki630afn7p9cfgr3vl00vr9c72a7d"))
+                "1dv24bsp6faayinvwds092ylk9sb6894rl9ddm87y31a7mjzsb5y"))
               (patches (search-patches "tcsh-fix-autotest.patch"))
               (patch-flags '("-p0"))))
     (build-system gnu-build-system)
@@ -427,6 +428,16 @@ written by Paul Haahr and Byron Rakitzis.")
               ;; Take care of pwd
               (substitute* '("tests/commands.at" "tests/variables.at")
                 (("/bin/pwd") (which "pwd")))
+              (substitute* "Makefile"
+                ;; Likewise for /usr/bin/env.
+                (("/usr/bin/env") "env")
+                ;; Don't reset the environment (PATH, etc).
+                (("\\$\\(ENVCMD\\) -") "$(ENVCMD)"))
+              ;; This test does not expect the home directory from
+              ;; /etc/passwd to be '/'.
+              (substitute* "tests/subst.at"
+                (("\\$\\(id -un\\)/foo")
+                 "$(id -un)//foo"))
               ;; The .at files create shell scripts without shebangs. Erk.
               (substitute* "tests/commands.at"
                 (("./output.sh") "/bin/sh output.sh"))
diff --git a/gnu/packages/simulation.scm b/gnu/packages/simulation.scm
index 96928dfa07..ebf249e155 100644
--- a/gnu/packages/simulation.scm
+++ b/gnu/packages/simulation.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017, 2018, 2019, 2020, 2021 Paul Garlick <pgarlick@tourbillion-technology.com>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -270,16 +271,13 @@ problems for efficient solution on parallel systems.")
          (replace 'check
            (lambda _
              (setenv "HOME" "/tmp")
-             (setenv "PYTHONPATH"
-                     (string-append (getcwd) ":" (getenv "PYTHONPATH")))
              (with-directory-excursion "test"
                ;; Disable parallel tests to avoid race condition.  See
                ;; https://github.com/pytest-dev/pytest-cov/issues/237.
                (substitute* "runtests.sh"
                  (("for p in 1 4 8 16; do")
                   "for p in 1; do"))
-               (invoke "./runtests.sh"))
-             #t)))))
+               (invoke "./runtests.sh")))))))
     (home-page "https://bitbucket.org/fenics-project/dijitso/")
     (synopsis "Distributed just-in-time building of shared libraries")
     (description
@@ -315,11 +313,7 @@ the complexity of that interface.  Parallel support depends on the
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH"
-                     (string-append (getcwd) ":" (getenv "PYTHONPATH")))
-             (with-directory-excursion "test"
-               (invoke "py.test"))
-             #t)))))
+             (invoke "py.test" "test"))))))
     (home-page "https://bitbucket.org/fenics-project/ufl/")
     (synopsis "Unified language for form-compilers")
     (description "The Unified Form Language (UFL) is a domain specific
@@ -353,8 +347,6 @@ UFL is part of the FEniCS Project.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (setenv "PYTHONPATH"
-                     (string-append (getcwd) ":" (getenv "PYTHONPATH")))
              (with-directory-excursion "test"
                ;; FIXME: three FIAT test modules are known to fail
                ;; with recent versions of pytest (>= 4).  These are
@@ -364,8 +356,7 @@ UFL is part of the FEniCS Project.")
                (invoke "py.test" "unit/"
                        "--ignore=unit/test_fiat.py"
                        "--ignore=unit/test_quadrature.py"
-                       "--ignore=unit/test_reference_element.py"))
-             #t)))))
+                       "--ignore=unit/test_reference_element.py")))))))
     (home-page "https://bitbucket.org/fenics-project/fiat/")
     (synopsis "Tabulation of finite element function spaces")
     (description
@@ -405,8 +396,6 @@ FIAT is part of the FEniCS Project.")
          (replace 'check
            (lambda _
              (setenv "HOME" (getcwd))
-             (setenv "PYTHONPATH"
-                     (string-append (getcwd) ":" (getenv "PYTHONPATH")))
              (with-directory-excursion "test"
                ;; FIXME: the tests in subdirectory
                ;; 'unit/ufc/finite_element' require the ffc_factory
@@ -631,8 +620,7 @@ user interface to the FEniCS core components and external libraries.")
              ;; Define paths to store locations.
              (setenv "PYBIND11_DIR" (assoc-ref %build-inputs "pybind11"))
              ;; Move to python sub-directory.
-             (chdir "python")
-             #t))
+             (chdir "python")))
          (add-after 'build 'mpi-setup
            ,%openmpi-setup)
          (add-before 'check 'pre-check
@@ -674,14 +662,8 @@ user interface to the FEniCS core components and external libraries.")
                  "d for d in demos if d[0].stem not in "
                  "excludeList]\n")))
              (setenv "HOME" (getcwd))
-             (setenv "PYTHONPATH"
-                     (string-append
-                      (getcwd) "/build/lib.linux-x86_64-"
-                      ,(version-major+minor (package-version python)) ":"
-                      (getenv "PYTHONPATH")))
              ;; Restrict OpenBLAS to MPI-only in preference to MPI+OpenMP.
-             (setenv "OPENBLAS_NUM_THREADS" "1")
-             #t))
+             (setenv "OPENBLAS_NUM_THREADS" "1")))
          (replace 'check
            (lambda _
              (with-directory-excursion "test"
@@ -693,8 +675,7 @@ user interface to the FEniCS core components and external libraries.")
                                        (min 3 (parallel-job-count)))
                        "python" "-B" "-m"
                        "pytest" "unit" "--ignore"
-                       "unit/nls/test_PETScSNES_solver.py"))
-             #t))
+                       "unit/nls/test_PETScSNES_solver.py"))))
          (add-after 'install 'install-demo-files
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((demos (string-append
@@ -708,8 +689,7 @@ user interface to the FEniCS core components and external libraries.")
                                (unless (equal? "." dir)
                                  (mkdir-p tgt-dir)
                                  (install-file file tgt-dir))))
-                           (find-files "." ".*\\.(py|gz|xdmf)$"))))
-             #t)))))
+                           (find-files "." ".*\\.(py|gz|xdmf)$")))))))))
     (home-page "https://fenicsproject.org/")
     (synopsis "High-level environment for solving differential equations")
     (description
diff --git a/gnu/packages/solidity.scm b/gnu/packages/solidity.scm
new file mode 100644
index 0000000000..26167ee659
--- /dev/null
+++ b/gnu/packages/solidity.scm
@@ -0,0 +1,92 @@
+;;; Copyright © 2020 Martin Becze <mjbecze@riseup.net>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages solidity)
+  #:use-module (gnu packages base)
+  #:use-module (gnu packages boost)
+  #:use-module (gnu packages maths)
+  #:use-module (gnu packages serialization)
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages ncurses)
+  #:use-module (guix packages)
+  #:use-module (guix git-download)
+  #:use-module (guix build-system cmake)
+  #:use-module ((guix licenses) #:prefix license:))
+
+(define-public solidity
+  (let ((commit "3f05b770bdbf60eca866382049ea191dd701409a"))
+    (package
+      (name "solidity")
+      (version "0.7.4")
+      (source
+       (origin
+         (method git-fetch)
+         (uri
+          (git-reference
+           (url "https://github.com/ethereum/solidity")
+           (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "1mswhjymiwnd3n7h3sjvjx5x8223yih0yvfcr0zpqr4aizpfx5z8"))))
+      (build-system cmake-build-system)
+      (arguments
+       `(#:phases
+         (modify-phases %standard-phases
+           (add-after 'unpack 'create-commit_hash.txt
+             (lambda _
+               (with-output-to-file "commit_hash.txt"
+                 (lambda _
+                   (display
+                    (substring ,commit 0 8))))))
+           (delete 'configure)
+           (delete 'install)
+           (replace 'build
+             (lambda* (#:key outputs #:allow-other-keys)
+               ;; Unbundle jsoncpp
+               (delete-file "./cmake/jsoncpp.cmake")
+               (substitute* "CMakeLists.txt"
+                 (("include\\(jsoncpp\\)") ""))
+               ;; Bug list is always sorted since we only build releases
+               (substitute* "./test/cmdlineTests.sh"
+                 (("\"\\$REPO_ROOT\"/scripts/update_bugs_by_version\\.py") ""))
+               (substitute* "./scripts/build.sh"
+                 (("sudo\\ make\\ install") "make install")
+                 (("cmake\\ ..")
+                  (string-append "cmake .. -DCMAKE_INSTALL_PREFIX="
+                                 (assoc-ref outputs "out"))))
+               (setenv "CIRCLECI" "1")
+               (invoke "./scripts/build.sh")
+               #t))
+           (replace 'check
+             (lambda _
+               (invoke "./scripts/tests.sh")
+               #t)))))
+      (inputs
+       `(("boost-static" ,boost-static)
+         ("jsoncpp" ,jsoncpp)
+         ("z3" ,z3)))
+      (native-inputs
+       `(("python" ,python)
+         ("tput" ,ncurses)
+         ("xargs" ,findutils)))
+      (home-page "https://solidity.readthedocs.io")
+      (synopsis "Contract-Oriented Programming Language")
+      (description
+       "Solidity is a statically-typed curly-braces programming language
+designed for developing smart contracts that run on the Ethereum Virtual
+Machine.")
+      (license license:gpl3+))))
diff --git a/gnu/packages/sphinx.scm b/gnu/packages/sphinx.scm
index 6f1656eb82..2e55c067aa 100644
--- a/gnu/packages/sphinx.scm
+++ b/gnu/packages/sphinx.scm
@@ -56,14 +56,14 @@
 (define-public python-sphinx
   (package
     (name "python-sphinx")
-    (version "3.3.1")
+    (version "4.0.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "Sphinx" version))
        (sha256
         (base32
-         "0023vc2i29pjxmvdqbz1wdbi7gbj56y1br1b2z8h8wa44li5k38y"))))
+         "0k0bfjw4f76k2yyz8k2rl3s66ig2mn7y13m8dzqbgckifmvh8lfg"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
diff --git a/gnu/packages/spice.scm b/gnu/packages/spice.scm
index 7fce241aca..5c065151d1 100644
--- a/gnu/packages/spice.scm
+++ b/gnu/packages/spice.scm
@@ -252,6 +252,14 @@ which allows users to view a desktop computing environment.")
         '("--enable-lz4"
           "--enable-automated-tests")
 
+        #:phases
+        (modify-phases %standard-phases
+          ;; XXX: Otherwise the server listen tests fails with
+          ;;   Failed to create /homeless-shelter/.config/glib-2.0/settings
+          (add-before 'check 'set-XDG_CONFIG_HOME
+            (lambda _
+              (setenv "XDG_CONFIG_HOME" "/tmp"))))
+
         ;; Several tests appear to be opening the same sockets concurrently.
         #:parallel-tests? #f))
     (synopsis "Server implementation of the SPICE protocol")
@@ -342,16 +350,14 @@ resolution scaling on graphical console window resize.")
                 "0azj3rqr2smg0lai24xrn3zr628xmjfrzcggay877zrr64ybj1c0"))))
     (build-system meson-build-system)
     (arguments
-     '(#:tests? #f                      ; TODO Tests require gnutls built with
-                                        ; p11-kit
-       #:phases
+     '(#:phases
        (modify-phases %standard-phases
          (add-after 'unpack 'patch-tests
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "tests/setup-softhsm2.sh"
                (("\\/usr\\/lib64\\/pkcs11\\/libsofthsm2\\.so")
-                (string-append (assoc-ref inputs "softhsm")
-                               "/lib/softhsm/libsofthsm2.so"))))))))
+                (search-input-file inputs
+                                   "/lib/softhsm/libsofthsm2.so"))))))))
     (propagated-inputs
      `(("glib" ,glib)                   ; Requires: in the pkg-config file
        ("nss" ,nss)))                   ; Requires.private: in the pkg-config
diff --git a/gnu/packages/sqlite.scm b/gnu/packages/sqlite.scm
index a48d724488..934c7c6918 100644
--- a/gnu/packages/sqlite.scm
+++ b/gnu/packages/sqlite.scm
@@ -1,12 +1,12 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2015, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2015, 2018, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014, 2015, 2016, 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014 Sree Harsha Totakura <sreeharsha@totakura.in>
 ;;; Copyright © 2015, 2016 Sou Bunnbu <iyzsong@gmail.com>
 ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Ben Woodcroft <donttrustben@gmail.com>
 ;;; Copyright © 2016 David Craven <david@craven.ch>
-;;; Copyright © 2016, 2017, 2018, 2019, 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2016, 2017, 2018, 2019, 2020, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2017 Jelle Licht <jlicht@fsfe.org>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
@@ -45,34 +45,32 @@
 ;;; This module has been separated from (gnu packages databases) to reduce the
 ;;; number of module references for core packages.
 
+(define (sqlite-uri version year)
+  (let ((numeric-version
+         (match (string-split version #\.)
+           ((first-digit other-digits ...)
+            (string-append first-digit
+                           (string-pad-right
+                            (string-concatenate
+                             (map (cut string-pad <> 2 #\0)
+                                  other-digits))
+                            6 #\0))))))
+    (string-append "https://sqlite.org/" (number->string year)
+                   "/sqlite-autoconf-" numeric-version ".tar.gz")))
+
 (define-public sqlite
   (package
    (name "sqlite")
-   (version "3.31.1")
+   (version "3.36.0")
    (source (origin
             (method url-fetch)
-            (uri (let ((numeric-version
-                        (match (string-split version #\.)
-                          ((first-digit other-digits ...)
-                           (string-append first-digit
-                                          (string-pad-right
-                                           (string-concatenate
-                                            (map (cut string-pad <> 2 #\0)
-                                                 other-digits))
-                                           6 #\0))))))
-                   (string-append "https://sqlite.org/2020/sqlite-autoconf-"
-                                  numeric-version ".tar.gz")))
+            (uri (sqlite-uri version 2021))
+            (patches (search-patches "sqlite-hurd.patch"))
             (sha256
              (base32
-              "1bj936svd8i5g25xd1bj52hj4zca01fgl3sqkj86z9q5pkz4wa32"))))
-   (replacement sqlite/fixed)
+              "1qxwkfvd185dfcqbakrzikrsw6ffr5jp1gl3dch9dsdyjvmw745x"))))
    (build-system gnu-build-system)
    (inputs `(("readline" ,readline)))
-   (native-inputs (if (hurd-target?)
-                      ;; TODO move into origin on the next rebuild cycle.
-                      `(("hurd-locking-mode.patch"
-                         ,@(search-patches "sqlite-hurd.patch")))
-                      '()))
    (outputs '("out" "static"))
    (arguments
     `(#:configure-flags
@@ -80,25 +78,13 @@
       ;; -DSQLITE_ENABLE_UNLOCK_NOTIFY and -DSQLITE_ENABLE_DBSTAT_VTAB
       ;; to CFLAGS.  GNU Icecat will refuse to use the system SQLite
       ;; unless these options are enabled.
-      (list (string-append "CFLAGS=-O2 -DSQLITE_SECURE_DELETE "
+      (list (string-append "CFLAGS=-O2 -g -DSQLITE_SECURE_DELETE "
                            "-DSQLITE_ENABLE_FTS3 "
                            "-DSQLITE_ENABLE_UNLOCK_NOTIFY "
                            "-DSQLITE_ENABLE_DBSTAT_VTAB "
                            ;; Column metadata is required by GNU Jami and Qt, et.al.
                            "-DSQLITE_ENABLE_COLUMN_METADATA"))
       #:phases (modify-phases %standard-phases
-                 ;; TODO: remove in the next rebuild cycle
-                 ,@(if (hurd-target?)
-                       `((add-after 'unpack 'patch-sqlite/hurd
-                           (lambda* (#:key inputs native-inputs
-                                     #:allow-other-keys)
-                             (let ((patch (assoc-ref
-                                           (if ,(%current-target-system)
-                                               native-inputs
-                                               inputs)
-                                           "hurd-locking-mode.patch")))
-                               (invoke "patch" "-p1" "--force" "-i" patch)))))
-                       '())
                  (add-after 'install 'move-static-library
                    (lambda* (#:key outputs #:allow-other-keys)
                      (let* ((out    (assoc-ref outputs "out"))
@@ -123,26 +109,16 @@ widely deployed SQL database engine in the world.  The source code for SQLite
 is in the public domain.")
    (license license:public-domain)))
 
-(define-public sqlite/fixed
+(define-public sqlite-3.33
   (package
     (inherit sqlite)
-    (version "3.32.3")
+    (version "3.33.0")
     (source (origin
               (method url-fetch)
-              (uri (let ((numeric-version
-                          (match (string-split version #\.)
-                            ((first-digit other-digits ...)
-                             (string-append first-digit
-                                            (string-pad-right
-                                             (string-concatenate
-                                              (map (cut string-pad <> 2 #\0)
-                                                   other-digits))
-                                             6 #\0))))))
-                     (string-append "https://sqlite.org/2020/sqlite-autoconf-"
-                                    numeric-version ".tar.gz")))
+              (uri (sqlite-uri version 2020))
               (sha256
                (base32
-                "0rlbaq177gcgk5dswd3akbhv2nvvzljrbhgy18hklbhw7h90f5d3"))))))
+                "05dvdfaxd552gj5p7k0i72sfam7lykaw1g2pfn52jnppqx42qshh"))))))
 
 ;; Column metadata support was added to the regular 'sqlite' package with
 ;; commit fad5b1a6d8d9c36bea5785ae4fbc1beb37e644d7.
diff --git a/gnu/packages/ssh.scm b/gnu/packages/ssh.scm
index 7429d4e956..7723390c16 100644
--- a/gnu/packages/ssh.scm
+++ b/gnu/packages/ssh.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2014 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2014, 2015, 2016 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015, 2016, 2018, 2019, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
@@ -15,7 +15,7 @@
 ;;; Copyright © 2019, 2020 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2020 Oleg Pykhalov <go.wigust@gmail.com>
-;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -313,11 +313,12 @@ Additionally, various channel-specific options can be negotiated.")
               (uri (git-reference
                     (url home-page)
                     (commit (string-append "v" version))))
-              (file-name (string-append name "-" version ".tar.gz"))
+              (file-name (git-file-name name version))
               (sha256
                (base32
                 "1xpxkvgj7wgcl450djkcrmrf957mcy2f36hfs5g6kpla1gax2d1g"))
-              (modules '((guix build utils)))))
+              (patches (search-patches "guile-ssh-fix-test-suite.patch"
+                                       "guile-ssh-read-error.patch"))))
     (build-system gnu-build-system)
     (outputs '("out" "debug"))
     (arguments
@@ -383,6 +384,9 @@ libssh library.")
   (package
     (inherit guile-ssh)
     (name "guile2.0-ssh")
+    (source (origin
+              (inherit (package-source guile-ssh))
+              (patches (search-patches "guile-ssh-fix-test-suite.patch"))))
     (native-inputs
      `(("guile" ,guile-2.0) ;needed when cross-compiling.
        ,@(alist-delete "guile" (package-native-inputs guile-ssh))))
@@ -393,6 +397,9 @@ libssh library.")
   (package
     (inherit guile-ssh)
     (name "guile2.2-ssh")
+    (source (origin
+              (inherit (package-source guile-ssh))
+              (patches (search-patches "guile-ssh-fix-test-suite.patch"))))
     (native-inputs
      `(("guile" ,guile-2.2) ;needed when cross-compiling.
        ,@(alist-delete "guile" (package-native-inputs guile-ssh))))
diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index 7b50d287f2..b95a8d0b04 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -12,6 +12,7 @@
 ;;; Copyright © 2017 Alex Kost <alezost@gmail.com>
 ;;; Copyright © 2018 Alex Branham <alex.branham@gmail.com>
 ;;; Copyright © 2020 Tim Howes <timhowes@lavabit.com>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2021 Bonface Munyoki Kilyungi <me@bonfacemunyoki.com>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -215,9 +216,8 @@ This package also provides @command{xls2csv} to export Excel files to CSV.")
              #t))
          (add-before 'configure 'patch-coreutils-paths
            (lambda* (#:key inputs #:allow-other-keys)
-             (let* ((coreutils (assoc-ref inputs "coreutils"))
-                   (uname-bin (string-append coreutils "/bin/uname"))
-                   (rm-bin (string-append coreutils "/bin/rm")))
+             (let ((uname-bin (search-input-file inputs "/bin/uname"))
+                   (rm-bin (search-input-file inputs "/bin/rm")))
                (substitute* "src/scripts/R.sh.in"
                  (("uname") uname-bin))
                (substitute* "src/unix/sys-std.c"
@@ -299,9 +299,8 @@ as.POSIXct(if (\"\" != Sys.getenv(\"SOURCE_DATE_EPOCH\")) {\
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "TZ" "UTC+1")
              (setenv "TZDIR"
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo"))
-             #t))
+                     (search-input-directory inputs
+                                             "share/zoneinfo"))))
          (add-after 'build 'make-info
           (lambda _ (invoke "make" "info")))
          (add-after 'build 'install-info
@@ -341,14 +340,16 @@ as.POSIXct(if (\"\" != Sys.getenv(\"SOURCE_DATE_EPOCH\")) {\
        ("perl" ,perl)
        ("pkg-config" ,pkg-config)
        ("texinfo" ,texinfo) ; for building HTML manuals
-       ("texlive" ,(texlive-union (list texlive-ae
+       ("texlive" ,(texlive-updmap.cfg (list texlive-ae
                                         texlive-inconsolata
                                         texlive-fonts-ec
-                                        texlive-amsfonts/patched
+                                        texlive-grfext
+                                        texlive-amsfonts
                                         texlive-latex-base
                                         texlive-latex-fancyvrb
                                         texlive-latex-graphics
                                         texlive-latex-hyperref
+                                        texlive-latex-l3backend
                                         texlive-latex-oberdiek
                                         texlive-latex-tools
                                         texlive-latex-upquote
@@ -5737,25 +5738,15 @@ to any arbitrary string.  In this case, it is up to you to set valid values.")
           "1cysswxr5glrdblyl2zsmywcj7xhxn3wmyihxinrz9gm8gmaacax"))))
     (build-system python-build-system)
     (arguments
-     '(#:modules ((ice-9 ftw)
-                  (srfi srfi-1)
-                  (srfi srfi-26)
-                  (guix build utils)
-                  (guix build python-build-system))
-       #:phases
+     '(#:phases
        (modify-phases %standard-phases
          (replace 'check
            (lambda* (#:key outputs inputs #:allow-other-keys)
              (let ((cwd (getcwd)))
-               (setenv "TZ" "UTC")
-               (setenv "PYTHONPATH"
-                       (string-append cwd "/build/"
-                                      (find (cut string-prefix? "lib" <>)
-                                            (scandir (string-append cwd "/build")))
-                                      ":"
-                                      (getenv "PYTHONPATH"))))
+               (setenv "TZ" "UTC"))
              ;; test_vector_complex has issues when run in our environment.
-             (invoke "pytest" "-v" "rpy2/tests/" "-k" "not test_vector_complex"))))))
+             (invoke "pytest" "-v" "rpy2/tests/"
+                     "-k" "not test_vector_complex"))))))
     (propagated-inputs
      `(("python-cffi" ,python-cffi)
        ("python-six" ,python-six)
diff --git a/gnu/packages/storage.scm b/gnu/packages/storage.scm
index d53327df75..4c2fa21a78 100644
--- a/gnu/packages/storage.scm
+++ b/gnu/packages/storage.scm
@@ -168,10 +168,7 @@
                                     "/site-packages")))
                ;; The Python install scripts refuses to function if
                ;; the install directory is not on PYTHONPATH.
-               (setenv "PYTHONPATH"
-                       (string-append py3sitedir ":"
-                                      (getenv "PYTHONPATH")))
-               #t)))
+               (setenv "PYTHONPATH" py3sitedir))))
          (add-after 'install 'wrap-python-scripts
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
@@ -190,7 +187,7 @@
                                  (sitedir prettytable))))
                (for-each (lambda (executable)
                            (wrap-program (string-append out "/bin/" executable)
-                             `("PYTHONPATH" ":" prefix (,PYTHONPATH))))
+                             `("GUIX_PYTHONPATH" ":" prefix (,PYTHONPATH))))
                          scripts)
                #t))))))
     (outputs
diff --git a/gnu/packages/suckless.scm b/gnu/packages/suckless.scm
index 65f4fa85a9..0f0491b39b 100644
--- a/gnu/packages/suckless.scm
+++ b/gnu/packages/suckless.scm
@@ -353,8 +353,8 @@ drawing.")
          (add-before 'build 'set-dmenu-and-xprop-file-name
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "config.def.h"
-               (("dmenu") (string-append (assoc-ref inputs "dmenu") "/bin/dmenu"))
-               (("xprop") (string-append (assoc-ref inputs "xprop") "/bin/xprop")))
+               (("dmenu") (search-input-file inputs "/bin/dmenu"))
+               (("xprop") (search-input-file inputs "/bin/xprop")))
              #t)))))
     (inputs
      `(("dmenu" ,dmenu)
diff --git a/gnu/packages/swig.scm b/gnu/packages/swig.scm
index 86c1407da9..b14bcd6401 100644
--- a/gnu/packages/swig.scm
+++ b/gnu/packages/swig.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
-;;; Copyright © 2018 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2018, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2020 Arun Isaac <arunisaac@systemreboot.net>
 ;;;
@@ -35,7 +35,7 @@
 (define-public swig
   (package
     (name "swig")
-    (version "4.0.1")
+    (version "4.0.2")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/" name "/" name "/"
@@ -43,18 +43,8 @@
                                  name "-" version ".tar.gz"))
              (sha256
               (base32
-               "1ac7g0gd8ndwv3ybqn5vjgqxa7090bby4db164a7mn9ssp8b803s"))))
+               "1z06m5zv87mha6hvys1iay810ghc1jngilfby1ms2n4d1mryjfym"))))
     (build-system gnu-build-system)
-    (arguments
-     '(#:phases
-       (modify-phases %standard-phases
-         (add-before 'configure 'workaround-gcc-bug
-           (lambda _
-             ;; XXX: Don't add the -isystem flag, or GCCs #include_next
-             ;; won't be able to find <stdlib.h>.
-             (substitute* "configure"
-               (("-isystem ") "-I"))
-             #t)))))
     (native-inputs `(("boost" ,boost)
                      ("pcre" ,pcre "bin")       ;for 'pcre-config'
                      ;; The following are for tests and examples:
diff --git a/gnu/packages/sync.scm b/gnu/packages/sync.scm
index c85b4f801c..d36e200def 100644
--- a/gnu/packages/sync.scm
+++ b/gnu/packages/sync.scm
@@ -156,9 +156,8 @@
                (("ON CACHE") "OFF CACHE"))
              (substitute* "src/gui/CMakeLists.txt"
                (("@kwidgetsaddons@")
-                (string-append (assoc-ref inputs "kwidgetsaddons")
-                               "/include/KF5/KWidgetsAddons/")))
-             #t))
+                (search-input-directory inputs
+                                        "/include/KF5/KWidgetsAddons/")))))
          (add-before 'check 'pre-check
            (lambda _
              ;; Tests write to $HOME.
diff --git a/gnu/packages/syndication.scm b/gnu/packages/syndication.scm
index f3690a1a29..a55f1180f7 100644
--- a/gnu/packages/syndication.scm
+++ b/gnu/packages/syndication.scm
@@ -375,10 +375,10 @@ file system, and many more features.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((out               (assoc-ref outputs "out"))
                    (gi-typelib-path   (getenv "GI_TYPELIB_PATH"))
-                   (python-path       (getenv "PYTHONPATH")))
+                   (python-path       (getenv "GUIX_PYTHONPATH")))
                (wrap-program (string-append out "/bin/liferea")
                  `("GI_TYPELIB_PATH" ":" prefix (,gi-typelib-path))
-                 `("PYTHONPATH" ":" prefix (,python-path))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,python-path))))
              #t)))))
     (native-inputs
      `(("autoconf" ,autoconf)
@@ -434,9 +434,8 @@ a simple interface that makes it easy to organize and browse feeds.")
            (lambda* (#:key inputs #:allow-other-keys)
              (setenv "HOME" (getcwd))
              (setenv "TERM" "linux")
-             (setenv "TERMINFO" (string-append (assoc-ref inputs "ncurses")
-                                               "/share/terminfo"))
-             #t)))
+             (setenv "TERMINFO"
+                     (search-input-directory inputs "share/terminfo")))))
        #:tests? #f)) ; tests fail: _curses.error: nocbreak() returned ERR
     (propagated-inputs
      `(("python-beautifulsoup4" ,python-beautifulsoup4)
@@ -599,7 +598,7 @@ that aims to be quite fast and comfortable to its user.")
          (add-after 'unpack 'patch-mpv-path
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "gfeeds/confManager.py"
-               (("mpv") (string-append (assoc-ref inputs "mpv") "/bin/mpv")))
+               (("mpv") (search-input-file inputs "/bin/mpv")))
              #t))
          (add-after 'install 'wrap-gfeeds
            (lambda* (#:key outputs #:allow-other-keys)
diff --git a/gnu/packages/task-management.scm b/gnu/packages/task-management.scm
index 7d24e00764..db2a6d9f54 100644
--- a/gnu/packages/task-management.scm
+++ b/gnu/packages/task-management.scm
@@ -211,11 +211,11 @@ a task.")
              (let* ((out               (assoc-ref outputs "out"))
                     (gi-typelib-path   (getenv "GI_TYPELIB_PATH"))
                     (gst-plugin-path   (getenv "GST_PLUGIN_SYSTEM_PATH"))
-                    (python-path       (getenv "PYTHONPATH")))
+                    (python-path       (getenv "GUIX_PYTHONPATH")))
                (wrap-program (string-append out "/bin/blanket")
                  `("GI_TYPELIB_PATH" ":" prefix (,gi-typelib-path))
                  `("GST_PLUGIN_SYSTEM_PATH" ":" prefix (,gst-plugin-path))
-                 `("PYTHONPATH" ":" prefix (,python-path))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,python-path))))
              #t)))))
     (native-inputs
      `(("desktop-file-utils" ,desktop-file-utils)
diff --git a/gnu/packages/tcl.scm b/gnu/packages/tcl.scm
index 55a95792cb..5fccfa5da9 100644
--- a/gnu/packages/tcl.scm
+++ b/gnu/packages/tcl.scm
@@ -44,20 +44,19 @@
 (define-public tcl
   (package
     (name "tcl")
-    (version "8.6.10")
+    (version "8.6.11")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/tcl/Tcl/"
                                   version "/tcl" version "-src.tar.gz"))
               (sha256
                (base32
-                "1vc7imilx6kcb5319r7hnrp4jn5pqb41an3vr3azhgcfcgvdp5ji"))
-              (patches (search-patches "tcl-fix-cross-compilation.patch"))))
+                "0n4211j80mxr6ql0xx52rig8r885rcbminfpjdb2qrw6hmk8c14c"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases (modify-phases %standard-phases
                   (add-before 'configure 'pre-configure
-                    (lambda _ (chdir "unix") #t))
+                    (lambda _ (chdir "unix")))
                  (add-after 'install 'install-private-headers
                    (lambda* (#:key outputs #:allow-other-keys)
                      ;; Private headers are needed by Expect.
@@ -68,8 +67,7 @@
                        ;; Programs such as Ghostscript rely on it.
                        (with-directory-excursion bin
                          (symlink (car (find-files "." "tclsh"))
-                                  "tclsh"))
-                       #t))))
+                                  "tclsh"))))))
 
        ;; By default, man pages are put in PREFIX/man, but we want them in
        ;; PREFIX/share/man.  The 'validate-documentation-location' phase is
@@ -197,7 +195,7 @@ X11 GUIs.")
 (define-public tk
   (package
     (name "tk")
-    (version "8.6.10")
+    (version "8.6.11.1")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/tcl/Tcl/"
@@ -205,38 +203,31 @@ X11 GUIs.")
                                  version "-src.tar.gz"))
              (sha256
               (base32
-               "11p3ycqbr5116vpaxv6fl6md6gcav1ffspgr8wrlc2lxhn543pv3"))
+               "1gh9k7l76qg9l0sb78ijw9xz4xl1af47aqbdifb6mjpf3cbsnv00"))
              (patches (search-patches "tk-find-library.patch"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases (modify-phases %standard-phases
-                  (add-before
-                   'configure 'pre-configure
-                   (lambda _
-                     (chdir "unix")
-                     #t))
-                  (add-after
-                   'install 'create-wish-symlink
-                   (lambda* (#:key outputs #:allow-other-keys)
-                     (let ((out (assoc-ref outputs "out")))
-                       (symlink (string-append out "/bin/wish"
-                                               ,(version-major+minor
+                  (add-before 'configure 'pre-configure
+                    (lambda _ (chdir "unix")))
+                  (add-after 'install 'create-wish-symlink
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let ((out (assoc-ref outputs "out")))
+                        (symlink (string-append out "/bin/wish"
+                                                ,(version-major+minor
                                                   (package-version tk)))
-                                (string-append out "/bin/wish")))
-                     #t))
-                  (add-after
-                   'install 'add-fontconfig-flag
-                   (lambda* (#:key inputs outputs #:allow-other-keys)
-                     ;; Add the missing -L flag for Fontconfig in 'tk.pc' and
-                     ;; 'tkConfig.sh'.
-                     (let ((out        (assoc-ref outputs "out"))
-                           (fontconfig (assoc-ref inputs "fontconfig")))
-                       (substitute* (find-files out
-                                                "^(tkConfig\\.sh|tk\\.pc)$")
-                         (("-lfontconfig")
-                          (string-append "-L" fontconfig
-                                         "/lib -lfontconfig")))
-                       #t))))
+                                 (string-append out "/bin/wish")))))
+                  (add-after 'install 'add-fontconfig-flag
+                    (lambda* (#:key inputs outputs #:allow-other-keys)
+                      ;; Add the missing -L flag for Fontconfig in 'tk.pc' and
+                      ;; 'tkConfig.sh'.
+                      (let ((out        (assoc-ref outputs "out"))
+                            (fontconfig (assoc-ref inputs "fontconfig")))
+                        (substitute* (find-files out
+                                                 "^(tkConfig\\.sh|tk\\.pc)$")
+                          (("-lfontconfig")
+                           (string-append "-L" fontconfig
+                                          "/lib -lfontconfig")))))))
 
        #:configure-flags
        (list (string-append "--with-tcl="
diff --git a/gnu/packages/telephony.scm b/gnu/packages/telephony.scm
index f75a168948..9924031993 100644
--- a/gnu/packages/telephony.scm
+++ b/gnu/packages/telephony.scm
@@ -556,8 +556,8 @@ address of one of the participants.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (invoke "qmake" "main.pro" "QMAKE_LRELEASE=lrelease"
                      (string-append "MUMBLE_PYTHON="
-                                    (string-append (assoc-ref inputs "python")
-                                                   "/bin/python3"))
+                                    (search-input-file inputs
+                                                       "/bin/python3"))
                      (string-append "CONFIG+="
                                     (string-join
                                      ;; Options used are listed in the same order
@@ -894,14 +894,11 @@ Initiation Protocol (SIP) and a multimedia framework.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "os/linux/AudioPulse.cpp"
                (("libpulse\\.so")
-                (string-append (assoc-ref inputs "pulseaudio")
-                              "/lib/libpulse.so")))
+                (search-input-file inputs "/lib/libpulse.so")))
              (substitute* '("os/linux/AudioInputALSA.cpp"
                             "os/linux/AudioOutputALSA.cpp")
                (("libasound\\.so")
-                (string-append (assoc-ref inputs "alsa-lib")
-                               "/lib/libasound.so")))
-             #t)))))
+                (search-input-file inputs "/lib/libasound.so"))))))))
     (synopsis "VoIP library for Telegram clients")
     (description "A collection of libraries and header files for implementing
 telephony functionality into custom Telegram clients.")
diff --git a/gnu/packages/terminals.scm b/gnu/packages/terminals.scm
index 9377e5622b..496b725543 100644
--- a/gnu/packages/terminals.scm
+++ b/gnu/packages/terminals.scm
@@ -714,8 +714,7 @@ eye-candy, customizable, and reasonably lightweight.")
                 "0rm7w29wf3gipf69qf7s42qw8857z74gsigrpz9g6vvd1x58f03m"))))
     (build-system meson-build-system)
     (arguments
-     `(#:meson ,meson-0.55
-       ;; Using a "release" build is recommended both for performance, and
+     `(;; Using a "release" build is recommended both for performance, and
        ;; also to address a GCC 10 issue when doing PGO builds.
        #:build-type "release"
        ;; Enable LTO as recommended by INSTALL.md.
@@ -1351,7 +1350,7 @@ basic input/output.")
                     (bin   (string-append out "/bin"))
                     (share (string-append out "/share"))
                     (icons (string-append share "/icons/hicolor/scalable/apps"))
-                    (tic   (string-append (assoc-ref inputs "ncurses") "/bin/tic"))
+                    (tic   (search-input-file inputs "/bin/tic"))
                     (man   (string-append share "/man/man1"))
                     (alacritty-bin "target/release/alacritty"))
                ;; Install the executable.
diff --git a/gnu/packages/tex.scm b/gnu/packages/tex.scm
index b404ca8ff1..b23b5256d7 100644
--- a/gnu/packages/tex.scm
+++ b/gnu/packages/tex.scm
@@ -8,7 +8,7 @@
 ;;; Copyright © 2016 Thomas Danckaert <post@thomasdanckaert.be>
 ;;; Copyright © 2016, 2017, 2018, 2019, 2020, 2021 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
-;;; Copyright © 2017, 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2017, 2020, 2021 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2017, 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Danny Milosavljevic <dannym+a@scratchpost.org>
 ;;; Copyright © 2018, 2020 Arun Isaac <arunisaac@systemreboot.net>
@@ -19,6 +19,7 @@
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
 ;;; Copyright © 2021 Ivan Gankevich <i.gankevich@spbu.ru>
 ;;; Copyright © 2021 Julien Lepiller <julien@lepiller.eu>
+;;; Copyright © 2021 Thiago Jung Bauermann <bauermann@kolabnow.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -39,6 +40,7 @@
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
   #:use-module (guix download)
+  #:use-module (guix build-system copy)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system perl)
   #:use-module (guix build-system python)
@@ -46,6 +48,7 @@
   #:use-module (guix build-system trivial)
   #:use-module (guix build-system texlive)
   #:use-module (guix utils)
+  #:use-module (guix deprecation)
   #:use-module (guix git-download)
   #:use-module (guix svn-download)
   #:use-module (gnu packages)
@@ -122,7 +125,7 @@ copied to their outputs; otherwise the TEXLIVE-BUILD-SYSTEM is used."
                           (string-append doc "/doc")))
                        '())
                  (mkdir-p out)
-                 (copy-recursively (assoc-ref inputs "source") out)
+                 (copy-recursively "." out)
                  ,@(if with-documentation?
                        '((delete-file-recursively (string-append out "/doc")))
                        '())
@@ -151,7 +154,7 @@ copied to their outputs; otherwise the TEXLIVE-BUILD-SYSTEM is used."
                               "-checkout"))
     (sha256
      (base32
-      "0lk7shx768sxvgr85y8bnmmnj8x4bbkgpxrz3z8jp8avi33prw83"))))
+      "04xzf5gr3ylyh3ls09imrx4mwq3qp1k97r9njzlan6hlff875rx2"))))
 
 (define (texlive-hyphen-package name code locations hash)
   "Return a TeX Live hyphenation package with the given NAME, using source
@@ -224,111 +227,101 @@ files from LOCATIONS with expected checksum HASH.  CODE is not currently in use.
 (define texlive-extra-src
   (origin
     (method url-fetch)
-    (uri "ftp://tug.org/historic/systems/texlive/2019/texlive-20190410-extra.tar.xz")
+    (uri "ftp://tug.org/historic/systems/texlive/2021/texlive-20210325-extra.tar.xz")
     (sha256 (base32
-             "13ncf2an4nlqv18lki6y2p6pcsgs1i54zqkhfwprax5j53bk70j8"))))
+             "171kg1n9zapw3d2g47d8l0cywa99bl9m54xkqvp9625ks22z78s6"))))
 
 (define texlive-texmf-src
   (origin
     (method url-fetch)
-    (uri "ftp://tug.org/historic/systems/texlive/2019/texlive-20190410-texmf.tar.xz")
+    (uri "ftp://tug.org/historic/systems/texlive/2021/texlive-20210325-texmf.tar.xz")
     (sha256 (base32
-             "00n4qh9fj8v9zzy3y488hpfq1g3dnnh72y4yjsaikfcqpi59gv62"))))
+             "070gczcm1h9rx29w2f02xd3nhd84c4k28nfmm8qgp69yq8vd84pz"))))
 
 (define-public texlive-bin
   (package
-   (name "texlive-bin")
-   (version "20190410")
-   (source
-    (origin
-      (method url-fetch)
-      (uri (string-append "ftp://tug.org/historic/systems/texlive/2019/"
-                          "texlive-" version "-source.tar.xz"))
-      (sha256
-       (base32
-        "1dfps39q6bdr1zsbp9p74mvalmy3bycihv19sb9c6kg30kprz8nj"))
-      (patches
-       (let ((arch-patch
-              (lambda (name revision hash)
-                (origin
-                  (method url-fetch)
-                  (uri (string-append "https://git.archlinux.org/svntogit/packages.git"
-                                      "/plain/trunk/" name "?h=packages/texlive-bin"
-                                      "&id=" revision))
-                  (file-name (string-append "texlive-bin-" name))
-                  (sha256 (base32 hash)))))
-             (arch-revision "49d7fe25e5ea63f136ebc20270c1d8fc9b00041c"))
-         (list
-          (arch-patch "pdftex-poppler0.76.patch" arch-revision
-                      "03vc88dz37mjjyaspzv0fik2fp5gp8qv82114869akd1dhszbaax")
-          (search-patch "texlive-bin-poppler-0.83.patch")
-          (arch-patch "texlive-poppler-0.84.patch" arch-revision
-                      "1ia6cr99krk4ipx4hdi2qdb98bh2h26mckjlpxdzrjnfhlnghksa")
-          (search-patch "texlive-bin-poppler-0.86.patch"))))
-      (modules '((guix build utils)
-                 (ice-9 ftw)))
-      (snippet
-       '(begin
-          (with-directory-excursion "libs"
-            (let ((preserved-directories '("." ".." "lua53" "luajit")))
-              ;; Delete bundled software, except Lua which cannot easily be
-              ;; used as an external dependency.
-              (for-each delete-file-recursively
-                        (scandir "."
-                                 (lambda (file)
-                                   (and (not (member file preserved-directories))
-                                        (eq? 'directory (stat:type (stat file)))))))))
-          ;; TODO: Unbundle stuff in texk/dvisvgm/dvisvgm-src/libs too.
-          #t))))
-   (build-system gnu-build-system)
-   (inputs
-    `(("texlive-extra-src" ,texlive-extra-src)
-      ("texlive-scripts"
-       ,(origin
-          (method svn-fetch)
-          (uri (svn-reference
-                (url (string-append "svn://www.tug.org/texlive/tags/"
-                                    %texlive-tag "/Master/texmf-dist/"
-                                    "/scripts/texlive"))
-                (revision %texlive-revision)))
-          (file-name (string-append "texlive-scripts-"
-                                    (number->string %texlive-revision)
-                                    "-checkout"))
-          (sha256
-           (base32
-            "1cj04svl8bpfwjr4gqfcc04rmklz3aggrxvgj7q5bxrh7c7g18xh"))))
-      ("cairo" ,cairo)
-      ("fontconfig" ,fontconfig)
-      ("fontforge" ,fontforge)
-      ("freetype" ,freetype)
-      ("gd" ,gd)
-      ("gmp" ,gmp)
-      ("ghostscript" ,ghostscript)
-      ("graphite2" ,graphite2)
-      ("harfbuzz" ,harfbuzz)
-      ("icu4c" ,icu4c)
-      ("libpaper" ,libpaper)
-      ("libpng" ,libpng)
-      ("libxaw" ,libxaw)
-      ("libxt" ,libxt)
-      ("mpfr" ,mpfr)
-      ("perl" ,perl)
-      ("pixman" ,pixman)
-      ("poppler" ,poppler)
-      ("potrace" ,potrace)
-      ("python" ,python-2) ; incompatible with Python 3 (print syntax)
-      ("ruby" ,ruby)
-      ("tcsh" ,tcsh)
-      ("teckit" ,teckit)
-      ("zlib" ,zlib)
-      ("zziplib" ,zziplib)))
-   (native-inputs
-    `(("pkg-config" ,pkg-config)))
-   (arguments
-    `(#:out-of-source? #t
-      #:configure-flags
+    (name "texlive-bin")
+    (version "20210325")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "ftp://tug.org/historic/systems/texlive/2021/"
+                           "texlive-" version "-source.tar.xz"))
+       (sha256
+        (base32
+         "0jsq1p66l46k2qq0gbqmx25flj2nprsz4wrd1ybn286p11kdkvvs"))
+       (modules '((guix build utils)
+                  (ice-9 ftw)))
+       (snippet
+        '(begin
+           (with-directory-excursion "libs"
+             (let ((preserved-directories '("." ".." "lua53" "luajit" "pplib" "xpdf")))
+               ;; Delete bundled software, except Lua which cannot easily be
+               ;; used as an external dependency, pplib and xpdf which aren't
+               ;; supported as system libraries (see m4/kpse-xpdf-flags.m4).
+               (for-each delete-file-recursively
+                         (scandir "."
+                                  (lambda (file)
+                                    (and (not (member file preserved-directories))
+                                         (eq? 'directory (stat:type (stat file)))))))))
+           ;; TODO: Unbundle stuff in texk/dvisvgm/dvisvgm-src/libs too.
+           #t))))
+    (build-system gnu-build-system)
+    (inputs
+     `(("texlive-extra-src" ,texlive-extra-src)
+       ("config" ,config)
+       ("texlive-scripts"
+        ,(origin
+           (method svn-fetch)
+           (uri (svn-reference
+                 (url (string-append "svn://www.tug.org/texlive/tags/"
+                                     %texlive-tag "/Master/texmf-dist/"
+                                     "/scripts/texlive"))
+                 (revision %texlive-revision)))
+           (file-name (string-append "texlive-scripts-"
+                                     (number->string %texlive-revision)
+                                     "-checkout"))
+           (sha256
+            (base32
+             "10xpa4nnz1biap7qfv7fb0zk6132ki5g1j8w0bqwkggfncdfl07d"))))
+       ("cairo" ,cairo)
+       ("fontconfig" ,fontconfig)
+       ("fontforge" ,fontforge)
+       ("freetype" ,freetype)
+       ("gd" ,gd)
+       ("gmp" ,gmp)
+       ("ghostscript" ,ghostscript)
+       ("graphite2" ,graphite2)
+       ("harfbuzz" ,harfbuzz)
+       ("icu4c" ,icu4c)
+       ("libpaper" ,libpaper)
+       ("libpng" ,libpng)
+       ("libxaw" ,libxaw)
+       ("libxt" ,libxt)
+       ("mpfr" ,mpfr)
+       ("perl" ,perl)
+       ("pixman" ,pixman)
+       ("potrace" ,potrace)
+       ("python" ,python)
+       ("ruby" ,ruby)
+       ("tcsh" ,tcsh)
+       ("teckit" ,teckit)
+       ("zlib" ,zlib)
+       ("zziplib" ,zziplib)))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (arguments
+     `(#:modules ((guix build gnu-build-system)
+                  (guix build utils)
+                  (ice-9 ftw)
+                  (srfi srfi-1)
+                  (srfi srfi-26))
+       #:out-of-source? #t
+       #:configure-flags
        '("--disable-static"
          "--disable-native-texlive-build"
+         "--enable-shared"
+         "--with-banner-add=/GNU Guix"
          "--with-system-cairo"
          "--with-system-freetype2"
          "--with-system-gd"
@@ -341,16 +334,15 @@ files from LOCATIONS with expected checksum HASH.  CODE is not currently in use.
          "--with-system-libpng"
          "--with-system-mpfr"
          "--with-system-pixman"
-         "--with-system-poppler"
          "--with-system-potrace"
          "--with-system-teckit"
-         "--with-system-xpdf"
          "--with-system-zlib"
          "--with-system-zziplib"
          ;; LuaJIT is not ported to powerpc64le* yet.
          ,@(if (string-prefix? "powerpc64le" (or (%current-target-system)
                                                  (%current-system)))
                '("--disable-luajittex"
+                 "--disable-luajithbtex"
                  "--disable-mfluajit")
                '()))
 
@@ -363,102 +355,178 @@ files from LOCATIONS with expected checksum HASH.  CODE is not currently in use.
                            (string-prefix? "mips64" s)
                            (string-prefix? "powerpc64le" s))))
 
-      #:phases
-      (modify-phases %standard-phases
-        (add-after 'unpack 'configure-ghostscript-executable
-          ;; ps2eps.pl uses the "gswin32c" ghostscript executable on Windows,
-          ;; and the "gs" ghostscript executable on Unix. It detects Unix by
-          ;; checking for the existence of the /usr/bin directory. Since
-          ;; Guix System does not have /usr/bin, it is also detected as Windows.
-          (lambda* (#:key inputs #:allow-other-keys)
-            (substitute* "utils/ps2eps/ps2eps-src/bin/ps2eps.pl"
-              (("gswin32c") "gs"))
-            (substitute* "texk/texlive/linked_scripts/epstopdf/epstopdf.pl"
-              (("\"gs\"")
-               (string-append "\"" (assoc-ref inputs "ghostscript") "/bin/gs\"")))
-            #t))
-        (add-after 'unpack 'use-code-for-new-poppler
-          (lambda _
-            (copy-file "texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc"
-                       "texk/web2c/pdftexdir/pdftoepdf.cc")
-            (copy-file "texk/web2c/pdftexdir/pdftosrc-poppler0.76.0.cc"
-                       "texk/web2c/pdftexdir/pdftosrc.cc")
-            #t))
-        (add-after 'unpack 'patch-dvisvgm-build-files
-          (lambda _
-            ;; XXX: Ghostscript is detected, but HAVE_LIBGS is never set, so
-            ;; the appropriate linker flags are not added.
-            (substitute* "texk/dvisvgm/configure"
-              (("^have_libgs=yes" all)
-               (string-append all "\nHAVE_LIBGS=1")))
-            #t))
-        (add-after 'unpack 'disable-failing-test
-          (lambda _
-            ;; FIXME: This test fails on 32-bit architectures since Glibc 2.28:
-            ;; <https://bugzilla.redhat.com/show_bug.cgi?id=1631847>.
-            (substitute* "texk/web2c/omegafonts/check.test"
-              (("^\\./omfonts -ofm2opl \\$srcdir/tests/check tests/xcheck \\|\\| exit 1")
-               "./omfonts -ofm2opl $srcdir/tests/check tests/xcheck || exit 77"))
-            #t))
-        (add-after 'install 'postint
-          (lambda* (#:key inputs outputs #:allow-other-keys #:rest args)
-            (let* ((out (assoc-ref outputs "out"))
-                   (share (string-append out "/share"))
-                   (texlive-extra (assoc-ref inputs "texlive-extra-src"))
-                   (unpack (assoc-ref %standard-phases 'unpack))
-                   (patch-source-shebangs
-                    (assoc-ref %standard-phases 'patch-source-shebangs)))
-              (substitute* (string-append share "/texmf-dist/web2c/texmf.cnf")
-                ;; Don't truncate lines.
-                (("^error_line = .*$") "error_line = 254\n")
-                (("^half_error_line = .*$") "half_error_line = 238\n")
-                (("^max_print_line = .*$") "max_print_line = 1000\n"))
-              ;; Create symbolic links for the latex variants and their
-              ;; man pages.
-              (with-directory-excursion (string-append out "/bin/")
-                (for-each symlink
-                          '("pdftex" "pdftex"   "xetex"   "luatex")
-                          '("latex"  "pdflatex" "xelatex" "lualatex")))
-              (with-directory-excursion (string-append share "/man/man1/")
-                (symlink "luatex.1" "lualatex.1"))
-              ;; Unpack texlive-extra and install tlpkg.
-              (mkdir "texlive-extra")
-              (with-directory-excursion "texlive-extra"
-                (apply unpack (list #:source texlive-extra))
-                (apply patch-source-shebangs (list #:source texlive-extra))
-                (invoke "mv" "tlpkg" share))
-              (let ((scripts (string-append share "/texmf-dist/scripts/texlive/")))
-                (mkdir-p scripts)
-                (copy-recursively (assoc-ref inputs "texlive-scripts") scripts)
-                ;; Make sure that fmtutil can find its Perl modules.
-                (substitute* (string-append scripts "fmtutil.pl")
-                  (("\\$TEXMFROOT/") (string-append share "/"))))
-
-              ;; texlua shebangs are not patched by the patch-source-shebangs
-              ;; phase because the texlua executable does not exist at that
-              ;; time.
-              (setenv "PATH" (string-append (getenv "PATH") ":" out "/bin"))
-              (with-directory-excursion out
-                (patch-source-shebangs))))))))
-   (native-search-paths
-    (list (search-path-specification
-           (variable "TEXMF")
-           (files '("share/texmf-dist"))
-           (separator #f))
-          (search-path-specification
-           (variable "TEXMFCNF")
-           (files '("share/texmf-dist/web2c"))
-           (separator #f))))
-   (synopsis "TeX Live, a package of the TeX typesetting system")
-   (description
-    "TeX Live provides a comprehensive TeX document production system.
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'configure-ghostscript-executable
+           ;; ps2eps.pl uses the "gswin32c" ghostscript executable on Windows,
+           ;; and the "gs" ghostscript executable on Unix. It detects Unix by
+           ;; checking for the existence of the /usr/bin directory. Since
+           ;; Guix System does not have /usr/bin, it is also detected as Windows.
+           (lambda* (#:key inputs #:allow-other-keys)
+             (substitute* "utils/ps2eps/ps2eps-src/bin/ps2eps.pl"
+               (("gswin32c") "gs"))
+             (substitute* "texk/texlive/linked_scripts/epstopdf/epstopdf.pl"
+               (("\"gs\"")
+                (string-append "\"" (assoc-ref inputs "ghostscript") "/bin/gs\"")))
+             #t))
+         (add-after 'unpack 'patch-dvisvgm-build-files
+           (lambda _
+             ;; XXX: Ghostscript is detected, but HAVE_LIBGS is never set, so
+             ;; the appropriate linker flags are not added.
+             (substitute* "texk/dvisvgm/configure"
+               (("^have_libgs=yes" all)
+                (string-append all "\nHAVE_LIBGS=1")))
+             #t))
+         (add-after 'unpack 'disable-failing-test
+           (lambda _
+             ;; FIXME: This test fails on 32-bit architectures since Glibc 2.28:
+             ;; <https://bugzilla.redhat.com/show_bug.cgi?id=1631847>.
+             (substitute* "texk/web2c/omegafonts/check.test"
+               (("^\\./omfonts -ofm2opl \\$srcdir/tests/check tests/xcheck \\|\\| exit 1")
+                "./omfonts -ofm2opl $srcdir/tests/check tests/xcheck || exit 77"))
+             #t))
+         (add-after 'unpack 'unpack-texlive-extra
+           (lambda* (#:key inputs #:allow-other-keys)
+             (mkdir "texlive-extra")
+             (with-directory-excursion "texlive-extra"
+               (apply (assoc-ref %standard-phases 'unpack)
+                      (list #:source (assoc-ref inputs "texlive-extra-src"))))))
+         (add-after 'unpack-texlive-extra 'unpack-texlive-scripts
+           (lambda* (#:key inputs #:allow-other-keys)
+             (mkdir "texlive-scripts")
+             (with-directory-excursion "texlive-scripts"
+               (apply (assoc-ref %standard-phases 'unpack)
+                      (list #:source (assoc-ref inputs "texlive-scripts"))))))
+         (add-after 'unpack-texlive-scripts 'patch-scripts
+           (lambda _
+             (let* ((scripts (append (find-files "texk/kpathsea" "^mktex")
+                                     (find-files "texk/texlive/linked_scripts"
+                                                 "\\.sh$")
+                                     (find-files "texlive-scripts" "\\.sh$")))
+                    (commands '("awk" "basename" "cat" "grep" "mkdir" "rm"
+                                "sed" "sort" "uname"))
+                    (command-regexp (format #f "\\b(~a)\\b"
+                                            (string-join commands "|")))
+                    (iso-8859-1-encoded-scripts
+                     '("texk/texlive/linked_scripts/texlive-extra/rubibtex.sh"
+                       "texk/texlive/linked_scripts/texlive-extra/rumakeindex.sh")))
+
+               (define (substitute-commands scripts)
+                 (substitute* scripts
+                   ((command-regexp dummy command)
+                    (which command))))
+
+               (substitute-commands (lset-difference string= scripts
+                                                     iso-8859-1-encoded-scripts))
+
+               (with-fluids ((%default-port-encoding "ISO-8859-1"))
+                 (substitute-commands iso-8859-1-encoded-scripts))
+
+               #t)))
+         (add-after 'check 'customize-texmf.cnf
+           ;; The default texmf.cnf is provided by this package, texlive-bin.
+           ;; Every variable of interest is set relatively to the GUIX_TEXMF
+           ;; environment variable defined via a search path specification
+           ;; further below.  The configuration file is patched after the test
+           ;; suite has run, as it relies on the default configuration to find
+           ;; its paths (and the GUIX_TEXMF variable isn't set yet).
+           (lambda _
+             ;; The current directory is build/ because of the out-of-tree
+             ;; build.
+             (let* ((source    (first (scandir ".." (cut string-suffix?
+                                                         "source" <>))))
+                    (texmf.cnf (string-append "../" source
+                                              "/texk/kpathsea/texmf.cnf")))
+               (substitute* texmf.cnf
+                 (("^TEXMFROOT = .*")
+                  "TEXMFROOT = {$GUIX_TEXMF}/..\n")
+                 (("^TEXMF = .*")
+                  "TEXMF = {$GUIX_TEXMF}\n")
+                 (("^%TEXMFCNF = .*")
+                  "TEXMFCNF = {$GUIX_TEXMF}/web2c\n")
+                 ;; Don't truncate lines.
+                 (("^error_line = .*$") "error_line = 254\n")
+                 (("^half_error_line = .*$") "half_error_line = 238\n")
+                 (("^max_print_line = .*$") "max_print_line = 1000\n")))
+             #t))
+         (add-after 'install 'post-install
+           (lambda* (#:key inputs outputs #:allow-other-keys #:rest args)
+             (let* ((out (assoc-ref outputs "out"))
+                    (patch-source-shebangs (assoc-ref %standard-phases
+                                                      'patch-source-shebangs))
+                    (share (string-append out "/share"))
+                    (scripts (string-append share
+                                            "/texmf-dist/scripts/texlive"))
+                    (source (string-append
+                             "../" (first (scandir ".." (cut string-suffix?
+                                                             "source" <>)))))
+                    (tl-extra-root (string-append source "/texlive-extra"))
+                    (tl-extra-dir (first
+                                   (scandir tl-extra-root
+                                            (negate
+                                             (cut member <> '("." ".."))))))
+                    (tlpkg-src (string-append tl-extra-root "/" tl-extra-dir
+                                              "/tlpkg"))
+                    (config.guess (search-input-file inputs
+                                                     "/bin/config.guess")))
+
+               ;; Create symbolic links for the latex variants and their
+               ;; man pages.
+               (with-directory-excursion (string-append out "/bin/")
+                 (for-each symlink
+                           '("pdftex" "pdftex"   "xetex"   "luatex")
+                           '("latex"  "pdflatex" "xelatex" "lualatex")))
+               (with-directory-excursion (string-append share "/man/man1/")
+                 (symlink "luatex.1" "lualatex.1"))
+
+               ;; Install tlpkg.
+               (copy-recursively tlpkg-src (string-append share "/tlpkg"))
+
+               ;; Install texlive-scripts.
+               (copy-recursively (string-append
+                                  source "/texlive-scripts/source/")
+                                 scripts)
+
+               ;; Make sure that fmtutil can find its Perl modules.
+               (substitute* (string-append scripts "/fmtutil.pl")
+                 (("\\$TEXMFROOT/")
+                  (string-append share "/")))
+
+               ;; Likewise for updmap.pl.
+               (substitute* (string-append scripts "/updmap.pl")
+                 (("\\$TEXMFROOT/tlpkg")
+                  (string-append share "/tlpkg")))
+
+               ;; Likewise for the tlmgr.
+               (substitute* (string-append scripts "/tlmgr.pl")
+                 ((".*\\$::installerdir = \\$Master.*" all)
+                  (format #f "  $Master = ~s;~%~a" share all)))
+
+               ;; Install the config.guess script, required by tlmgr.
+               (with-directory-excursion share
+                 (mkdir-p "tlpkg/installer/")
+                 (symlink config.guess "tlpkg/installer/config.guess"))
+
+               ;; texlua shebangs are not patched by the patch-source-shebangs
+               ;; phase because the texlua executable does not exist at that
+               ;; time.
+               (setenv "PATH" (string-append (getenv "PATH") ":" out "/bin"))
+               (with-directory-excursion out
+                 (patch-source-shebangs))))))))
+    (native-search-paths
+     (list (search-path-specification
+            (variable "GUIX_TEXMF")
+            (files '("share/texmf-dist")))))
+    (synopsis "TeX Live, a package of the TeX typesetting system")
+    (description
+     "TeX Live provides a comprehensive TeX document production system.
 It includes all the major TeX-related programs, macro packages, and fonts
 that are free software, including support for many languages around the
 world.
 
 This package contains the binaries.")
-   (license (license:fsf-free "https://www.tug.org/texlive/copying.html"))
-   (home-page "https://www.tug.org/texlive/")))
+    (license (license:fsf-free "https://www.tug.org/texlive/copying.html"))
+    (home-page "https://www.tug.org/texlive/")))
 
 (define-public texlive-libkpathsea
   (package/inherit texlive-bin
@@ -500,7 +568,7 @@ executables.  It is maintained as a part of TeX Live.")))
               "texlive-docstrip"
               (list "/tex/latex/base/docstrip.tex")
               (base32
-               "1f9sx1lp7v34zwm186msf03q2h28rrg0lh65z59zc0cvqffs6dvb")
+               "1pxbqbia0727vg01xv8451szm55z2w8sb0vv3kf4iqx5ibb6m0d2")
               #:trivial? #t))
     (home-page "https://www.ctan.org/texlive")
     (synopsis "Utility to strip documentation from TeX files.")
@@ -515,7 +583,7 @@ documentation from TeX files.  It is part of the LaTeX base.")
               (list "/tex/generic/unicode-data/"
                     "/doc/generic/unicode-data/")
               (base32
-               "0zy4v9y667cka5fi4dnc6x500907812y7pcaf63s5qxi8l7khxxy")
+               "1d41zvjsig7sqf2j2m89dnbv3gicpb16r04b4ikps4gabhbky83k")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/unicode-data")
     (synopsis "Unicode data and loaders for TeX")
@@ -548,7 +616,7 @@ out to date by @code{unicode-letters.tex}. ")
                     "/tex/generic/hyphen/hypht1.tex"
                     "/tex/generic/hyphen/zerohyph.tex")
               (base32
-               "0f19nml4hdx9lh7accqdk1b9ismwfm2523l5zsc4kb4arysgcakz")
+               "1sagn9aybs34m1s6m3zwya5g5kbiwfnw8ifcgxssygmzzs88dgjp")
               #:trivial? #t))
     (home-page "https://tug.org/texlive/")
     (synopsis "Core hyphenation support files")
@@ -569,7 +637,7 @@ default versions of those), etc.")
                     "/fonts/enc/dvips/base/"
                     "/tex/generic/dvips/")
               (base32
-               "1qr7h0ahycmz5wmpv54glfss9jqdmmyymj6kim626d1c8v9bmg86")
+               "0rns1hpjy4fmsskmkwx197j8qbgdmyj0j9214sq9vhpa6nv7czm3")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/dvips")
     (synopsis "DVI to PostScript drivers")
@@ -597,21 +665,22 @@ to adapt the plain e-TeX source file to work with XeTeX and LuaTeX.")
 (define-public texlive-generic-tex-ini-files
   (deprecated-package "texlive-generic-tex-ini-files" texlive-tex-ini-files))
 
-(define-public texlive-metafont-base
+(define-public texlive-metafont
   (package
-    (name "texlive-metafont-base")
+    (name "texlive-metafont")
     (version (number->string %texlive-revision))
     (source (origin
-              (method svn-fetch)
-              (uri (svn-reference
+              (method svn-multi-fetch)
+              (uri (svn-multi-reference
                     (url (string-append "svn://www.tug.org/texlive/tags/"
-                                        %texlive-tag "/Master/texmf-dist/"
-                                        "/metafont"))
+                                        %texlive-tag "/Master/texmf-dist"))
+                    (locations '("/metafont/"
+                                 "/fonts/source/public/modes/"))
                     (revision %texlive-revision)))
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1yl4n8cn5xqk2nc22zgzq6ymd7bhm6xx1mz3azip7i3ki4bhb5q5"))))
+                "17y72xmz5a36vdsq7pfrwj0j4c7llrm9j5kcq349cpaas7r32lmb"))))
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f ; no test target
@@ -620,14 +689,17 @@ to adapt the plain e-TeX source file to work with XeTeX and LuaTeX.")
          (delete 'configure)
          (replace 'build
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((cwd (getcwd)))
+             (let* ((cwd (getcwd))
+                    (mf (string-append cwd "/metafont"))
+                    (modes (string-append cwd "/fonts/source/public/modes")))
                (setenv "MFINPUTS"
-                       (string-append cwd "/base:"
-                                      cwd "/misc:"
-                                      cwd "/roex:"
-                                      cwd "/feynmf:"
-                                      cwd "/mfpic:"
-                                      cwd "/config")))
+                       (string-append modes ":"
+                                      mf "/base:"
+                                      mf "/misc:"
+                                      mf "/roex:"
+                                      mf "/feynmf:"
+                                      mf "/mfpic:"
+                                      mf "/config")))
              (mkdir "build")
              (with-directory-excursion "build"
                (invoke "inimf" "mf.mf"))))
@@ -635,12 +707,14 @@ to adapt the plain e-TeX source file to work with XeTeX and LuaTeX.")
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out  (assoc-ref outputs "out"))
                     (base (string-append out "/share/texmf-dist/web2c"))
-                    (mf   (string-append out "/share/texmf-dist/metafont/base")))
+                    (mf   (string-append out "/share/texmf-dist/metafont/")))
                (mkdir-p base)
                (mkdir-p mf)
                (install-file "build/mf.base" base)
-               (copy-recursively "base" mf)
-               #t))))))
+               (with-directory-excursion "metafont"
+                 (for-each (lambda (where)
+                             (copy-recursively where (string-append mf where)))
+                           (list "base" "misc" "config")))))))))
     (native-inputs
      `(("texlive-bin" ,texlive-bin)))
     (home-page "https://www.ctan.org/pkg/metafont")
@@ -649,6 +723,9 @@ to adapt the plain e-TeX source file to work with XeTeX and LuaTeX.")
 build fonts using the Metafont system.")
     (license license:knuth)))
 
+(define-public texlive-metafont-base
+  (deprecated-package "texlive-metafont-base" texlive-metafont))
+
 (define-public texlive-fontinst
   (let ((template (simple-texlive-package
                    "texlive-fontinst"
@@ -673,11 +750,9 @@ build fonts using the Metafont system.")
                          "/tex/fontinst/latinetx/"
                          "/tex/fontinst/latinmtx/"
                          "/tex/fontinst/mathmtx/"
-                         "/tex/fontinst/smblmtx/"
-
-                         "/scripts/texlive/fontinst.sh")
+                         "/tex/fontinst/smblmtx/")
                    (base32
-                    "0lprwib7n2ygfxvrw675vhif7ghyip2x6k70kqs9syp8lqxiizf8")
+                    "195jsijrpv828pqy99gm13j31nsc8bsa58zlbln2r0h5j9l44b5g")
                    #:trivial? #t)))
     (package
       (inherit template)
@@ -749,7 +824,7 @@ typesetting in these fonts.")
               (list "/doc/fonts/fontname/fontname.texi"
                     "/fonts/map/fontname/")
               (base32
-               "0h5im5rnhycrrkd6z10f17m2caa8lv594wf482b68qjmnxfrqnxj")
+               "009qvjpw48lajp0gxpvdk10n5qw3q41cpq05ycns67mxwkcaywq6")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/fontname")
     (synopsis "Scheme for naming fonts in TeX")
@@ -766,7 +841,7 @@ documents.")
                          "/fonts/map/dvips/cm/cmtext-bsr-interpolated.map"
                          "/doc/fonts/cm/")
                    (base32
-                    "09mvl94qrwlb9b4pkigi151l256v3djhwl4m5lgvk6yhn5y75zrp")
+                    "1ky4gvcn8qn3d61bvb39512b8r92igv6il7vh02hw04223yj6q8i")
                    #:trivial? #t)))
     (package
       (inherit template)
@@ -780,7 +855,7 @@ documents.")
           `(modify-phases ,phases
              (replace 'build
                (lambda* (#:key inputs #:allow-other-keys)
-                 (let ((mf (assoc-ref inputs "texlive-metafont-base")))
+                 (let ((mf (assoc-ref inputs "texlive-metafont")))
                    ;; Tell mf where to find mf.base
                    (setenv "MFBASES" (string-append mf "/share/texmf-dist/web2c"))
                    ;; Tell mf where to look for source files
@@ -824,7 +899,7 @@ documents.")
                    #t)))))))
       (native-inputs
        `(("texlive-bin" ,texlive-bin)
-         ("texlive-metafont-base" ,texlive-metafont-base)))
+         ("texlive-metafont" ,texlive-metafont)))
       (home-page "https://www.ctan.org/pkg/cm")
       (synopsis "Computer Modern fonts for TeX")
       (description "This package provides the Computer Modern fonts by Donald
@@ -889,7 +964,7 @@ originals.")
                     "/tex4ht/ht-fonts/alias/adobe/courier/"
                     "/tex4ht/ht-fonts/unicode/adobe/courier/")
               (base32
-               "1hfgisdi7mjf5156ax6d6zsbiq42zkmp1x5lg17rgzf61k6d6z1y")
+               "05lglavi073glj26k9966351hka5ac22g4vim61dkfy001vz4i7r")
               #:trivial? #t))
     (home-page "https://ctan.org/pkg/urw-base35")
     (synopsis "URW Base 35 font pack for LaTeX")
@@ -898,6 +973,45 @@ font from Adobe's basic set.")
     ;; No license version specified.
     (license license:gpl3+)))
 
+(define-public texlive-tex-gyre
+  (package
+    (inherit (simple-texlive-package
+              "texlive-tex-gyre"
+              '("/doc/fonts/tex-gyre/GUST-FONT-LICENSE.txt"
+                "/fonts/afm/public/tex-gyre/"
+                "/fonts/enc/dvips/tex-gyre/"
+                "/fonts/map/dvips/tex-gyre/"
+                "/fonts/opentype/public/tex-gyre/"
+                "/fonts/tfm/public/tex-gyre/"
+                "/fonts/type1/public/tex-gyre/"
+                "/tex/latex/tex-gyre/")
+              (base32
+               "1ldnlmclghm3gnyv02r8a6cqybygz2ifq07mhykhf43h1pw3aq7k")
+              #:trivial? #t))
+    (home-page "https://ctan.org/pkg/tex-gyre")
+    (synopsis "TeX fonts extending URW fonts")
+    (description
+     "The TeX-GYRE bundle consist of multiple font families:
+@itemize @bullet
+@item Adventor, based on the URW Gothic L family of fonts;
+@item Bonum, based on the URW Bookman L family;
+@item Chorus, based on URW Chancery L Medium Italic;
+@item Cursor, based on URW Nimbus Mono L;
+@item Heros, based on URW Nimbus Sans L;
+@item Pagella, based on URW Palladio L;
+@item Schola, based on the URW Century Schoolbook L family;
+@item Termes, based on the URW Nimbus Roman No9 L family of fonts.
+@end itemize
+
+The constituent standard faces of each family have been greatly extended
+(though Chorus omits Greek support and has no small-caps family).  Each
+family is available in Adobe Type 1 and Open Type formats, and LaTeX
+support (for use with a variety of encodings) is provided.")
+    ;; The GUST font license (GFL) is legally identical to the LaTeX Project
+    ;; Public License (LPPL), version 1.3c or later, but comes with an
+    ;; additional but not legally binding clause.
+    (license license:lppl1.3c+)))
+
 (define-public texlive-lm
   (package
     (inherit (simple-texlive-package
@@ -912,7 +1026,7 @@ font from Adobe's basic set.")
                     "/fonts/type1/public/lm/"
                     "/tex/latex/lm/")
               (base32
-               "0i1hwr8rp0jqyvs4qyplrirscd4w7lsgwsncyv3yzy80bsa56jq5")
+               "0yyk0dr4yms82mwy4dc03zf5igyhgcb65icdah042rk23rlpxygv")
               #:trivial? #t))
     (home-page "http://www.gust.org.pl/projects/e-foundry/latin-modern/")
     (synopsis "Latin Modern family of fonts")
@@ -927,73 +1041,69 @@ Computers & Typesetting series.")
 (define-public texlive-fonts-lm
   (deprecated-package "texlive-fonts-lm" texlive-lm))
 
-(define-public texlive-fonts-knuth-lib
-  (package
-    (name "texlive-fonts-knuth-lib")
-    (version (number->string %texlive-revision))
-    (source (origin
-              (method svn-fetch)
-              (uri (svn-reference
-                    (url (string-append "svn://www.tug.org/texlive/tags/"
-                                        %texlive-tag "/Master/texmf-dist/"
-                                        "/fonts/source/public/knuth-lib"))
-                    (revision %texlive-revision)))
-              (file-name (string-append name "-" version "-checkout"))
-              (sha256
-               (base32
-                "0in9aqyi8jkyf9d16z0li50z5fpwj1iwgwm83gmvwqcf7chfs04y"))))
-    (build-system gnu-build-system)
-    (arguments
-     `(#:modules ((guix build gnu-build-system)
-                  (guix build utils)
-                  (srfi srfi-26))
-       #:tests? #f ; no tests
-       #:phases
-       (modify-phases %standard-phases
-         (delete 'configure)
-         (replace 'build
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((mf (assoc-ref inputs "texlive-metafont-base")))
-               ;; Tell mf where to find mf.base
-               (setenv "MFBASES"
-                       (string-append mf "/share/texmf-dist/web2c"))
-               ;; Tell mf where to look for source files
-               (setenv "MFINPUTS"
-                       (string-append (getcwd) ":"
-                                      mf "/share/texmf-dist/metafont/base")))
-             (mkdir "build")
-             (for-each (lambda (font)
-                         (format #t "building font ~a\n" font)
-                         (invoke "mf" "-progname=mf"
-                                 "-output-directory=build"
-                                 (string-append "\\"
-                                                "mode:=ljfour; "
-                                                "mag:=1; "
-                                                "batchmode; "
-                                                "input " font)))
-                       (find-files "." "(manfnt|logo.+)\\.mf$"))
-             #t))
-         (replace 'install
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((out (assoc-ref outputs "out"))
-                    (tfm (string-append
-                          out "/share/texmf-dist/fonts/tfm/public/knuth-lib"))
-                    (mf  (string-append
-                          out "/share/texmf-dist/fonts/source/public/knuth-lib")))
-               (for-each (cut install-file <> tfm)
-                         (find-files "build" "\\.*"))
-               (for-each (cut install-file <> mf)
-                         (find-files "." "\\.mf"))
-               #t))))))
-    (native-inputs
-     `(("texlive-bin" ,texlive-bin)
-       ("texlive-metafont-base" ,texlive-metafont-base)))
-    (home-page "https://www.ctan.org/pkg/knuth-lib")
-    (synopsis "Small library of METAFONT sources")
-    (description "This is a collection of core TeX and METAFONT macro files
+(define-public texlive-knuth-lib
+  (let ((template (simple-texlive-package
+                   "texlive-knuth-lib"
+                   (list "/fonts/source/public/knuth-lib/"
+                         "/tex/generic/knuth-lib/"
+                         "/tex/plain/knuth-lib/")
+                   (base32
+                    "1cxyqqprp8sj2j4zp9l0wry8cq2awpz3a8i5alzpc4ndg7a6pgdf")
+                   #:trivial? #t)))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:modules _ '())
+          '((guix build gnu-build-system)
+            (guix build utils)
+            (srfi srfi-26)))
+         ((#:phases phases '())
+          `(modify-phases ,phases
+             (replace 'build
+               (lambda* (#:key inputs #:allow-other-keys)
+                 (with-directory-excursion "fonts/source/public/knuth-lib"
+                   (let ((mf (assoc-ref inputs "texlive-metafont")))
+                     ;; Tell mf where to find mf.base
+                     (setenv "MFBASES"
+                             (string-append mf "/share/texmf-dist/web2c"))
+                     ;; Tell mf where to look for source files
+                     (setenv "MFINPUTS"
+                             (string-append (getcwd) ":"
+                                            mf "/share/texmf-dist/metafont/base")))
+                   (mkdir "build")
+                   (for-each (lambda (font)
+                               (format #t "building font ~a\n" font)
+                               (invoke "mf" "-progname=mf"
+                                       "-output-directory=build"
+                                       (string-append "\\"
+                                                      "mode:=ljfour; "
+                                                      "mag:=1; "
+                                                      "batchmode; "
+                                                      "input " font)))
+                             (find-files "." "(manfnt|logo.+)\\.mf$")))
+                 #t))
+             (add-after 'install 'install-fonts
+               (lambda* (#:key outputs #:allow-other-keys)
+                 (with-directory-excursion "fonts/source/public/knuth-lib"
+                   (let* ((out (assoc-ref outputs "out"))
+                          (tfm (string-append
+                                out "/share/texmf-dist/fonts/tfm/public/knuth-lib")))
+                     (for-each (cut install-file <> tfm)
+                               (find-files "build" "\\.tfm"))
+                     #t))))))))
+      (native-inputs
+       `(("texlive-bin" ,texlive-bin)
+         ("texlive-metafont" ,texlive-metafont)))
+      (home-page "https://www.ctan.org/pkg/knuth-lib")
+      (synopsis "Small library of METAFONT sources")
+      (description "This is a collection of core TeX and METAFONT macro files
 from Donald Knuth, including the plain format, plain base, and the MF logo
 fonts.")
-    (license license:knuth)))
+      (license license:knuth))))
+
+(define-public texlive-fonts-knuth-lib
+  (deprecated-package "texlive-fonts-knuth-lib" texlive-knuth-lib))
 
 (define-public texlive-fonts-latex
   (package
@@ -1022,7 +1132,7 @@ fonts.")
          (delete 'configure)
          (replace 'build
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((mf (assoc-ref inputs "texlive-metafont-base")))
+             (let ((mf (assoc-ref inputs "texlive-metafont")))
                ;; Tell mf where to find mf.base
                (setenv "MFBASES" (string-append mf "/share/texmf-dist/web2c"))
                ;; Tell mf where to look for source files
@@ -1061,7 +1171,7 @@ fonts.")
                #t))))))
     (native-inputs
      `(("texlive-bin" ,texlive-bin)
-       ("texlive-metafont-base" ,texlive-metafont-base)
+       ("texlive-metafont" ,texlive-metafont)
        ("texlive-cm" ,texlive-cm)))
     (home-page "https://www.ctan.org/pkg/latex-fonts")
     (synopsis "Collection of fonts used in LaTeX distributions")
@@ -1071,27 +1181,81 @@ class), line and circle fonts (for use in the picture environment) and LaTeX
 symbol fonts.")
     (license license:lppl1.2+)))
 
-(define-public texlive-latex-mflogo
-  (package
-    (name "texlive-latex-mflogo")
-    (version (number->string %texlive-revision))
-    (source
-     (origin
-       (method svn-fetch)
-       (uri (texlive-ref "latex" "mflogo"))
-       (file-name (string-append name "-" version "-checkout"))
-       (sha256
-        (base32
-         "15i2ib6nvhf31g1b92c6njf7n0g29znlq7hbfp9ii7qabhcwwvrj"))))
-    (build-system texlive-build-system)
-    (arguments '(#:tex-directory "latex/mflogo"))
-    (home-page "http://www.ctan.org/pkg/mflogo")
-    (synopsis "LaTeX support for Metafont logo fonts")
-    (description
-     "This package provides LaTeX and font definition files to access the
+(define-public texlive-mflogo
+  (let ((template (simple-texlive-package
+                   "texlive-mflogo"
+                   (list "/doc/latex/mflogo/"
+                         "/source/latex/mflogo/"
+                         "/fonts/source/public/mflogo/logosl8.mf")
+                   (base32
+                    "1vb4mg7fh4k54g7nqwiw3qm4iir8whpfnspis76l4sddzar1amh7"))))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:modules _ '())
+          '((guix build texlive-build-system)
+            (guix build utils)
+            (srfi srfi-1)
+            (srfi srfi-26)))
+         ((#:tex-directory _ #t)
+          "latex/mflogo")
+         ((#:phases phases '())
+          `(modify-phases ,phases
+             (add-after 'unpack 'chdir
+               (lambda _
+                 (chdir "source/latex/mflogo") #t))
+             (add-after 'build 'build-font-metrics
+               (lambda* (#:key inputs #:allow-other-keys)
+                 (let ((root "../../..")
+                       (mf (assoc-ref inputs "texlive-metafont"))
+                       (kl (assoc-ref inputs "texlive-knuth-lib")))
+                   ;; Tell mf where to find mf.base
+                   (setenv "MFBASES"
+                           (string-append mf "/share/texmf-dist/web2c"))
+                   ;; Tell mf where to look for source files
+                   (setenv "MFINPUTS"
+                           (string-append root ":"
+                                          mf "/share/texmf-dist/metafont/base:"
+                                          kl "/share/texmf-dist/fonts/source/public/knuth-lib:"
+                                          root "/fonts/source/public/mflogo/"))
+                   (for-each (lambda (font)
+                               (format #t "building font ~a\n" font)
+                               (invoke "mf" "-progname=mf"
+                                       "-output-directory=build"
+                                       (string-append "\\"
+                                                      "mode:=ljfour; "
+                                                      "mag:=1; "
+                                                      "scrollmode; "
+                                                      "input " (basename font))))
+                             (find-files (string-append root
+                                                        "/fonts/source/public/mflogo/")
+                                         "\\.mf$")))
+                 #t))
+             (add-before 'install 'install-fonts
+               (lambda* (#:key outputs #:allow-other-keys)
+                 (let* ((out (assoc-ref outputs "out"))
+                        (tfm (string-append
+                              out "/share/texmf-dist/fonts/tfm/public/mflogo")))
+                   (for-each (lambda (file)
+                               (install-file file tfm)
+                               (delete-file file))
+                             (find-files "build" "\\.tfm"))
+                   #t)))))))
+      (native-inputs
+       `(("texlive-bin" ,texlive-bin)
+         ("texlive-metafont" ,texlive-metafont)
+         ("texlive-knuth-lib" ,texlive-knuth-lib)))
+      (home-page "http://www.ctan.org/pkg/mflogo")
+      (synopsis "LaTeX support for Metafont logo fonts")
+      (description
+       "This package provides LaTeX and font definition files to access the
 Knuthian mflogo fonts described in The Metafontbook and to typeset Metafont
 logos in LaTeX documents.")
-    (license license:lppl)))
+      (license license:lppl))))
+
+(define-public texlive-latex-mflogo
+  (deprecated-package "texlive-latex-mflogo" texlive-mflogo))
 
 (define-public texlive-mflogo-font
   (package
@@ -1147,171 +1311,11 @@ Taco Hoekwater.")
           `(modify-phases ,phases
              (add-before 'build 'build-fonts
                (lambda* (#:key inputs #:allow-other-keys)
-                 (let ((mf  (assoc-ref inputs "texlive-union"))
-                       (src (string-append (getcwd) "/fonts/source/public/amsfonts/")))
-                   ;; Make METAFONT reproducible
-                   (setenv "SOURCE_DATE_EPOCH" "1")
-                   ;; Tell mf where to find mf.base
-                   (setenv "MFBASES" (string-append mf "/share/texmf-dist/web2c"))
-                   ;; Tell mf where to look for source files
-                   (setenv "MFINPUTS"
-                           (string-append src ":"
-                                          src "/cmextra:"
-                                          src "/cyrillic:"
-                                          src "/dummy:"
-                                          src "/symbols:"
-                                          mf "/share/texmf-dist/metafont/base:"
-                                          (assoc-ref inputs "texlive-cm")
-                                          "/share/texmf-dist/fonts/source/public/cm")))
-                 (let ((build (string-append (getcwd) "/build-fonts")))
-                   (mkdir-p build)
-                   (with-directory-excursion "fonts/source/public/amsfonts"
-                     (for-each (lambda (font)
-                                 (format #t "building font ~a\n" (basename font ".mf"))
-                                 (with-directory-excursion (dirname font)
-                                   (invoke "mf" "-progname=mf"
-                                           (string-append "-output-directory=" build)
-                                           (string-append "\\"
-                                                          "mode:=ljfour; "
-                                                          "mag:=1; "
-                                                          "nonstopmode; "
-                                                          "input "
-                                                          (getcwd) "/"
-                                                          (basename font ".mf")))))
-                               (find-files "." "[0-9]+\\.mf$"))))
-
-                 ;; There are no metafont sources for the Euler fonts, so we
-                 ;; convert the afm files instead.
-                 (let ((build (string-append (getcwd) "/build-fonts/euler")))
-                   (mkdir build)
-                   (with-directory-excursion "fonts/afm/public/amsfonts/"
-                     (for-each (lambda (font)
-                                 (format #t "converting afm font ~a\n" (basename font ".afm"))
-                                 (invoke "afm2tfm" font
-                                         (string-append build "/"
-                                                        (basename font ".tfm"))))
-                               (find-files "." "\\.afm$")))
-
-                   ;; Frustratingly, not all fonts can be created this way.  To
-                   ;; generate eufm8.tfm, for example, we first scale down
-                   ;; eufm10.afm to eufm8.pl, and then generate the tfm file from
-                   ;; the pl file.
-                   (setenv "TEXINPUTS"
-                           (string-append build "//:"
-                                          (getcwd) "/fonts/afm/public/amsfonts//:"
-                                          (getcwd) "/source/latex/amsfonts//:"
-                                          (assoc-ref inputs "texlive-union") "//"))
-                   (with-directory-excursion build
-                     (for-each (match-lambda
-                                 (((target-base target-size)
-                                   (source-base source-size))
-                                  (let ((factor (number->string
-                                                 (truncate/ (* 1000 target-size)
-                                                            source-size))))
-                                    (invoke "tex"
-                                            "-interaction=scrollmode"
-                                            (string-append "\\input fontinst.sty "
-                                                           "\\transformfont{" target-base "}"
-                                                           "{\\scalefont{" factor "}"
-                                                           "{\\fromafm{" source-base "}}} "
-                                                           "\\bye")))
-                                  (invoke "pltotf"
-                                          (string-append target-base ".pl")
-                                          (string-append target-base ".tfm"))
-                                  (delete-file (string-append target-base ".pl"))))
-
-                               '((("eufm8" 8) ("eufm10" 10))
-
-                                 (("eufb6" 6) ("eufb7" 7))
-                                 (("eufb8" 8) ("eufb10" 10))
-                                 (("eufb9" 9) ("eufb10" 10))
-
-                                 (("eufm6" 6) ("eufb7" 7))
-                                 (("eufm9" 9) ("eufb10" 10))
-
-                                 (("eurb6" 6) ("eurb7" 7))
-                                 (("eurb8" 8) ("eurb10" 10))
-                                 (("eurb9" 9) ("eurb10" 10))
-
-                                 (("eurm6" 6) ("eurm7" 7))
-                                 (("eurm8" 8) ("eurm10" 10))
-                                 (("eurm9" 9) ("eurm10" 10))))))
-                 #t))
-             (add-after 'install 'install-generated-fonts
-               (lambda* (#:key inputs outputs #:allow-other-keys)
-                 (copy-recursively "build-fonts"
-                                   (string-append
-                                    (assoc-ref outputs "out")
-                                    "/share/texmf-dist/fonts/tfm/public/amsfonts"))
-                 #t))))))
-      (native-inputs
-       `(("texlive-union" ,(texlive-union (list texlive-tex-fontinst-base
-                                                texlive-cm
-                                                texlive-metafont-base)))))
-      (home-page "https://www.ctan.org/pkg/amsfonts")
-      (synopsis "TeX fonts from the American Mathematical Society")
-      (description
-       "This package provides an extended set of fonts for use in mathematics,
-including: extra mathematical symbols; blackboard bold letters (uppercase
-only); fraktur letters; subscript sizes of bold math italic and bold Greek
-letters; subscript sizes of large symbols such as sum and product; added sizes
-of the Computer Modern small caps font; cyrillic fonts (from the University of
-Washington); Euler mathematical fonts.  All fonts are provided as Adobe Type 1
-files, and all except the Euler fonts are provided as Metafont source.  The
-distribution also includes the canonical Type 1 versions of the Computer
-Modern family of fonts.  The Euler fonts are supported by separate packages;
-details can be found in the documentation.")
-      (license license:silofl1.1))))
+                 ;; Allow self fonts sources and other resources to be
+                 ;; discovered.
+                 (setenv "GUIX_TEXMF" (string-append (getenv "GUIX_TEXMF")
+                                                     ":" (getcwd)))
 
-;; XXX: we can only change texlive-amsfonts on the core-updates branch.  This
-;; patched version generates only tfm files for fonts provided by the source
-;; files of this package, not variants of the fonts provided by texlive-cm.
-(define-public texlive-amsfonts/patched
-  (let ((template (simple-texlive-package
-                   "texlive-amsfonts"
-                   (list "/source/latex/amsfonts/"
-                         "/fonts/source/public/amsfonts/"
-                         "/fonts/type1/public/amsfonts/"
-                         "/fonts/afm/public/amsfonts/"
-                         "/fonts/map/dvips/amsfonts/"
-                         "/tex/plain/amsfonts/"
-                         "/doc/fonts/amsfonts/")
-                   (base32
-                    "15q70nkjf8wqzbd5ivcdx3i2sdgqxjb38q0qn9a2qw9i0qcnx6zw"))))
-    (package
-      (inherit template)
-      (arguments
-       (substitute-keyword-arguments (package-arguments template)
-         ((#:build-targets _ #t)
-          '(list "amsfonts.ins"))
-         ((#:tex-directory _ #t)
-          "latex/amsfonts")
-         ((#:modules modules '())
-          `((guix build texlive-build-system)
-            (guix build utils)
-            (ice-9 match)
-            (srfi srfi-1)
-            (srfi srfi-26)))
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (add-before 'build 'build-fonts
-               (lambda* (#:key inputs #:allow-other-keys)
-                 (let ((mf  (assoc-ref inputs "texlive-union"))
-                       (src (string-append (getcwd) "/fonts/source/public/amsfonts/")))
-                   ;; Make METAFONT reproducible
-                   (setenv "SOURCE_DATE_EPOCH" "1")
-                   ;; Tell mf where to find mf.base
-                   (setenv "MFBASES" (string-append mf "/share/texmf-dist/web2c"))
-                   ;; Tell mf where to look for source files
-                   (setenv "MFINPUTS"
-                           (string-append src ":"
-                                          src "/cmextra:"
-                                          src "/cyrillic:"
-                                          src "/dummy:"
-                                          src "/symbols:"
-                                          mf "/share/texmf-dist/metafont/base:"
-                                          (assoc-ref inputs "texlive-cm")
-                                          "/share/texmf-dist/fonts/source/public/cm")))
                  (let ((build (string-append (getcwd) "/build-fonts")))
                    (mkdir-p build)
                    (with-directory-excursion "fonts/source/public/amsfonts"
@@ -1333,7 +1337,7 @@ details can be found in the documentation.")
                  ;; convert the afm files instead.
                  (let ((build (string-append (getcwd) "/build-fonts/euler")))
                    (mkdir build)
-                   (with-directory-excursion "fonts/afm/public/amsfonts/"
+                   (with-directory-excursion "fonts/afm/public/amsfonts/euler"
                      (for-each (lambda (font)
                                  (format #t "converting afm font ~a\n" (basename font ".afm"))
                                  (invoke "afm2tfm" font
@@ -1347,10 +1351,9 @@ details can be found in the documentation.")
                    ;; eufm10.afm to eufm8.pl, and then generate the tfm file from
                    ;; the pl file.
                    (setenv "TEXINPUTS"
-                           (string-append build "//:"
+                           (string-append ":" build "//:"
                                           (getcwd) "/fonts/afm/public/amsfonts//:"
-                                          (getcwd) "/source/latex/amsfonts//:"
-                                          (assoc-ref inputs "texlive-union") "//"))
+                                          (getcwd) "/source/latex/amsfonts//:"))
                    (with-directory-excursion build
                      (for-each (match-lambda
                                  (((target-base target-size)
@@ -1385,19 +1388,16 @@ details can be found in the documentation.")
 
                                  (("eurm6" 6) ("eurm7" 7))
                                  (("eurm8" 8) ("eurm10" 10))
-                                 (("eurm9" 9) ("eurm10" 10))))))
-                 #t))
+                                 (("eurm9" 9) ("eurm10" 10))))))))
              (add-after 'install 'install-generated-fonts
                (lambda* (#:key inputs outputs #:allow-other-keys)
                  (copy-recursively "build-fonts"
                                    (string-append
                                     (assoc-ref outputs "out")
-                                    "/share/texmf-dist/fonts/tfm/public/amsfonts"))
-                 #t))))))
+                                    "/share/texmf-dist/fonts/tfm/public/amsfonts"))))))))
       (native-inputs
-       `(("texlive-union" ,(texlive-union (list texlive-tex-fontinst-base
-                                                texlive-cm
-                                                texlive-metafont-base)))))
+       `(("texlive-updmap.cfg" ,(texlive-updmap.cfg
+                                 (list texlive-fontinst)))))
       (home-page "https://www.ctan.org/pkg/amsfonts")
       (synopsis "TeX fonts from the American Mathematical Society")
       (description
@@ -1461,7 +1461,7 @@ output encodings, and features generation of clean UTF-8 patterns.")
              ;; Build tfm font.
              (replace 'build
                (lambda* (#:key inputs #:allow-other-keys)
-                 (let ((mf (assoc-ref inputs "texlive-metafont-base")))
+                 (let ((mf (assoc-ref inputs "texlive-metafont")))
                    ;; Tell mf where to find mf.base
                    (setenv "MFBASES" (string-append mf "/share/texmf-dist/web2c"))
                    ;; Tell mf where to look for source files
@@ -1487,7 +1487,7 @@ output encodings, and features generation of clean UTF-8 patterns.")
                  #t))))))
       (native-inputs
        `(("texlive-bin" ,texlive-bin)
-         ("texlive-metafont-base" ,texlive-metafont-base)
+         ("texlive-metafont" ,texlive-metafont)
          ("texlive-cm" ,texlive-cm)))
       (home-page "https://www.ctan.org/pkg/etex")
       (synopsis "Extended version of TeX")
@@ -1505,7 +1505,7 @@ incorporates the e-TeX extensions.")
               "texlive-tex-plain"
               (list "/tex/plain/")
               (base32
-               "1m4qpaszwfv7j8a85rlwl7rs4iv5nlj67c1vvn6ysly72h9gjydb")
+               "0gwygkm8i2jmpf7bfg6fb6824rl7fq4a2s0wni73v0fz6s4chr1n")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/plain")
     (synopsis "Plain TeX format and supporting files")
@@ -1612,11 +1612,9 @@ language.")
   (package
     (inherit (texlive-hyphen-package
               "texlive-hyphen-bulgarian" "bg"
-              (list "/doc/generic/hyph-utf8/bg/azbukaExtended.pdf"
-                    "/doc/generic/hyph-utf8/bg/azbukaExtended.tex"
-                    "/tex/generic/hyph-utf8/patterns/tex/hyph-bg.tex")
+              '("/tex/generic/hyph-utf8/patterns/tex/hyph-bg.tex")
               (base32
-               "0ngrgw2rmipxss76rgfk62x9nnsgwmaxxna2jqxxhybai3q39mx5")))
+               "0m254y71j3qrb71klvfalfmic3kjy31l85b9cgpdm5yznlsq3i8d")))
     (synopsis "Hyphenation patterns for Bulgarian")
     (description "The package provides hyphenation patterns for the Bulgarian
 language in T2A and UTF-8 encodings.")
@@ -1640,9 +1638,10 @@ T1/EC and UTF-8 encodings.")
   (package
     (inherit (texlive-hyphen-package
               "texlive-hyphen-chinese" "zh-latn-pinyin"
-              (list "/tex/generic/hyph-utf8/patterns/tex/hyph-zh-latn-pinyin.tex")
+              '("/tex/generic/hyph-utf8/patterns/ptex/hyph-zh-latn-pinyin.ec.tex"
+                "/tex/generic/hyph-utf8/patterns/tex/hyph-zh-latn-pinyin.tex")
               (base32
-               "1j68mry2zy91m1kbzwhin5q2jajf6xh48npdds8wvp1sqmzih2a3")))
+               "1hhh30hcjymm2igpllly04cavsfmd6xrjkd9zax6b2wdxn3ka4pm")))
     (synopsis "Hyphenation patterns for unaccented Chinese pinyin")
     (description "The package provides hyphenation patterns for unaccented
 Chinese pinyin T1/EC and UTF-8 encodings.")
@@ -1784,12 +1783,24 @@ be replaced by files tailored to individual languages.")
               "texlive-hyphen-finnish" "fi"
               (list "/tex/generic/hyph-utf8/patterns/tex/hyph-fi.tex")
               (base32
-               "1f72b4ydb4zddvw2i004948khmwzigxkdkwfym5v1kkq0183sfpj")))
+               "1pa8sjs9zvnv1y6dma4s60sf9cr4zrvhxwm6i8cnshm84q16w4bc")))
     (synopsis "Hyphenation patterns for Finnish")
     (description "The package provides hyphenation patterns for Finnish in
 T1/EC and UTF-8 encodings.")
     (license license:public-domain)))
 
+(define-public texlive-hyphen-schoolfinnish
+  (package
+    (inherit (texlive-hyphen-package
+              "texlive-hyphen-schoolfinnish" "fi-x-school"
+              (list "/tex/generic/hyph-utf8/patterns/tex/hyph-fi-x-school.tex")
+              (base32
+               "1w5n6gaclgifbbnafg32vz3mfaibyldvh4yh1ya3sq9fwfmv035c")))
+    (synopsis "Hyphenation patterns for Finnish for school")
+    (description "The package provides hyphenation patterns for Finnish for
+school in T1/EC and UTF-8 encodings.")
+    (license license:public-domain)))
+
 (define-public texlive-hyphen-french
   (package
     (inherit (texlive-hyphen-package
@@ -1851,7 +1862,7 @@ T8M, T8K, and UTF-8 encodings.")
                     "/tex/generic/dehyph/dehyphtex.tex"
                     "/tex/generic/dehyph/README")
               (base32
-               "0wp5by5kkf4ac6li5mbppqzw11500wa7f22p5vpz3m1kwd15zavw")))
+               "17cc5hd0fr3ykpgly9nxaiz4sik3kmfn2wyxz1fkdnqqhl3i41a0")))
     (synopsis "Hyphenation patterns for German")
     (description "This package provides hyphenation patterns for German in
 T1/EC and UTF-8 encodings, for traditional and reformed spelling, including
@@ -1881,10 +1892,10 @@ in monotonic and polytonic spelling in LGR and UTF-8 encodings.")
     (inherit (texlive-hyphen-package
               "texlive-hyphen-hungarian" "hu"
               (list "/doc/generic/huhyphen/"
-                    "/doc/generic/hyph-utf8/hu/"
+                    "/doc/generic/hyph-utf8/languages/hu/"
                     "/tex/generic/hyph-utf8/patterns/tex/hyph-hu.tex")
               (base32
-               "1j1b8kksg9r8nmjyjvvz8fr3hgcrjj6jlybf9p06nwrrwm2r8j8f")))
+               "006d2290lcsqzh9ljansbaj9k52s17zgkw0kpsspn5l7a8n00zcl")))
     (synopsis "Hyphenation patterns for Hungarian")
     (description "This package provides hyphenation patterns for Hungarian in
 T1/EC and UTF-8 encodings.")
@@ -1996,11 +2007,12 @@ Europe, in T1/EC and UTF-8 encodings.")
   (package
     (inherit (texlive-hyphen-package
               "texlive-hyphen-latin" '("la-x-classic" "la-x-liturgic" "la")
-              (list "/tex/generic/hyph-utf8/patterns/tex/hyph-la-x-classic.tex"
-                    "/tex/generic/hyph-utf8/patterns/tex/hyph-la-x-liturgic.tex"
-                    "/tex/generic/hyph-utf8/patterns/tex/hyph-la.tex")
+              '("/tex/generic/hyph-utf8/patterns/tex/hyph-la-x-classic.tex"
+                "/tex/generic/hyph-utf8/patterns/tex/hyph-la-x-liturgic.tex"
+                "/tex/generic/hyph-utf8/patterns/tex/hyph-la.tex"
+                "/tex/generic/hyph-utf8/patterns/tex-8bit/hyph-la-x-classic.ec.tex")
               (base32
-               "0rxg8a4s5cpj8vlkz5a74a036axda5jqgvr3f9aj2cc2x9f2f3w9")))
+               "119rf6sk1f639ky6zr9njn21nsxzgfmjci94y26745qs8w08ilkl")))
     (synopsis "Liturgical Latin hyphenation patterns")
     (description "This package provides hyphenation patterns for Latin in
 T1/EC and UTF-8 encodings, mainly in modern spelling (u when u is needed and v
@@ -2042,6 +2054,19 @@ L7X and UTF-8 encodings.")
     ;; the hyph-utf8 package we choose the LPPL license.
     (license license:lppl)))
 
+(define-public texlive-hyphen-macedonian
+  (package
+    (inherit (texlive-hyphen-package
+              "texlive-hyphen-macedonian" "mk"
+              '("/tex/generic/hyph-utf8/patterns/tex/hyph-mk.tex"
+                "/tex/generic/hyph-utf8/patterns/tex-8bit/hyph-mk.macedonian.tex")
+              (base32
+               "1fv6y8gpic5ciw8cclfxc8h3wr5xir1j0a7shixja1pmdyz7db2b")))
+    (synopsis "Macedonian hyphenation patterns")
+    (description "This package provides hypenation patterns for Macedonian.")
+    ;; XXX: License just says 'GPL'.  Assume GPL2 since the file predates GPL3.
+    (license license:gpl2+)))
+
 (define-public texlive-hyphen-mongolian
   (package
     (inherit (texlive-hyphen-package
@@ -2180,10 +2205,10 @@ T2A and UTF-8 encodings.")
   (package
     (inherit (texlive-hyphen-package
               "texlive-hyphen-sanskrit" "sa"
-              (list "/doc/generic/hyph-utf8/sa/hyphenmin.txt"
+              (list "/doc/generic/hyph-utf8/languages/sa/hyphenmin.txt"
                     "/tex/generic/hyph-utf8/patterns/tex/hyph-sa.tex")
               (base32
-               "0gi2qk0wf388h9n25gzhv0cdz67ph83wal8h3iz2sqnpdjsw8kpc")))
+               "1bkzj8swj4lbswf1vr4pb1jg6dixzs7p8h8zm8s8as52h442aida")))
     (synopsis "Sanskrit hyphenation patterns")
     (description "This package provides hyphenation patterns for Sanskrit and
 Prakrit in longdesc transliteration, and in Devanagari, Bengali, Kannada,
@@ -2241,7 +2266,7 @@ T1/EC and UTF-8 encodings.")
               "texlive-hyphen-spanish" "es"
               (list "/tex/generic/hyph-utf8/patterns/tex/hyph-es.tex")
               (base32
-               "1h3yg9vcq0lf7hxv0ahkqmyg269dxjs8m2mz8sgz5l1fxmvahvaj")))
+               "05lbvjkj304xxghyihk8js0kmg97ddlgijld3bp81bc28h4cav0v")))
     (synopsis "Hyphenation patterns for Spanish")
     (description "The package provides hyphenation patterns for Spanish in
 T1/EC and UTF-8 encodings.")
@@ -2361,7 +2386,7 @@ T1/EC and UTF-8 encodings.")
                     "/doc/generic/hyph-utf8/img/miktex-languages.png"
                     "/doc/generic/hyph-utf8/img/texlive-collection.png")
               (base32
-               "1bar5mc808ch20anhqrdxcwiych359qsvr7mggxpg2l2kq5xdyq0")))
+               "0rgp0zn36gwzqwpmjb9h01ns3m19v3r7lpw1h0pc9bx115w6c9jx")))
     (outputs '("out" "doc"))
     (build-system gnu-build-system)
     (arguments
@@ -2397,7 +2422,7 @@ T1/EC and UTF-8 encodings.")
              (setenv "TFMFONTS"
                      (string-append (assoc-ref inputs "texlive-cm")
                                     "/share/texmf-dist/fonts/tfm/public/cm:"
-                                    (assoc-ref inputs "texlive-fonts-knuth-lib")
+                                    (assoc-ref inputs "texlive-knuth-lib")
                                     "/share/texmf-dist/fonts/tfm/public/knuth-lib"))
              ;; ...and find all tex files in this environment.
              (setenv "TEXINPUTS"
@@ -2451,7 +2476,7 @@ T1/EC and UTF-8 encodings.")
        ;; for a working "tex".
        ("texlive-tex-plain" ,texlive-tex-plain)
        ("texlive-cm" ,texlive-cm)
-       ("texlive-fonts-knuth-lib" ,texlive-fonts-knuth-lib)
+       ("texlive-knuth-lib" ,texlive-knuth-lib)
        ("texlive-hyphen-base" ,texlive-hyphen-base)))
     (home-page "https://ctan.org/pkg/hyph-utf8")
     (synopsis "Hyphenation patterns expressed in UTF-8")
@@ -2494,7 +2519,7 @@ converters, will completely supplant the older patterns.")
               (list "/tex/generic/dehyph-exptl/"
                     "/doc/generic/dehyph-exptl/")
               (base32
-               "1fnqc63gz8gvdyfz45bx8dxn1r1rwrypahs3bqd2vlc8ff76xp86")
+               "0l57a0r4gycp94kz6lrxqvh9m57j2shmbr2laf5zjb0qnrisq46d")
               #:trivial? #t))
     (propagated-inputs
      `(("texlive-hyphen-base" ,texlive-hyphen-base)
@@ -2601,7 +2626,7 @@ UCY (Omega Unicode Cyrillic), LCY, LWN (OT2), and koi8-r.")
                     "/web2c/tcvn-t5.tcx"
                     "/web2c/viscii-t5.tcx")
               (base32
-               "191i8n3g46p53bb9dkx2ggwpzy7skgg0pbklsrpx8x4ayd86wcaf")
+               "00q2nny7lw7jxyln6ch4h0alygbrzk8yynliyc291m53kds1h0mr")
               #:trivial? #t))
     (home-page "https://www.tug.org/texlive/")
     (synopsis "Files related to the path searching library for TeX")
@@ -2617,7 +2642,7 @@ mechanism.  This package provides supporting files.")
               "texlive-latexconfig"
               (list "/tex/latex/latexconfig/")
               (base32
-               "1wa7yhdpnz1nyidwgli68fyr33jn951bnniqrih5lj98k09rqc3h")
+               "10ynmd8b9b9l1wl1mva23yz4zir53p6r5z31s39wmxz19pj12qvx")
               #:trivial? #t))
     (home-page "https://www.tug.org/")
     (synopsis "Configuration files for LaTeX-related formats")
@@ -2643,7 +2668,7 @@ formats.")
                          "/tex/latex/base/testpage.tex"
                          "/tex/latex/base/texsys.cfg")
                    (base32
-                    "0m0gjb4hbsf2iqkkx3px4f28r2scjvsjv4zb2whkbnb44apyw1f0")
+                    "0msyjz0937rc7hs77v6la152sdiwd73qj41z1mlyh0m3dns9qz4g")
                    #:trivial? #t)))
     (package
       (inherit template)
@@ -2677,7 +2702,7 @@ formats.")
                                '(("texlive-etex" . "/etex")
                                  ("texlive-cm" . "/cm")
                                  ("texlive-fonts-latex" . "/latex-fonts")
-                                 ("texlive-fonts-knuth-lib" . "/knuth-lib")))
+                                 ("texlive-knuth-lib" . "/knuth-lib")))
                           ":"))
                  (let ((cwd (getcwd)))
                    (setenv "TEXINPUTS"
@@ -2687,7 +2712,8 @@ formats.")
                             cwd "/build:"
                             (string-join
                              (map (match-lambda ((_ . dir) dir)) inputs)
-                             "//:"))))
+                             "//:")))
+                   (setenv "LUAINPUTS" (string-append cwd "/build:")))
 
                  ;; This is the actual build step.
                  (mkdir "build")
@@ -2704,12 +2730,14 @@ formats.")
                  (let ((disabled-formats
                         '("aleph aleph" "lamed aleph" "uptex uptex" "euptex euptex"
                           "eptex eptex" "ptex ptex" "pdfxmltex pdftex" "platex eptex"
+                          "platex-dev eptex" "uplatex-dev euptex"
                           "csplain pdftex" "mf mf-nowin" "mex pdftex" "pdfmex pdftex"
-                          "luacsplain luatex"
+                          "luacsplain luatex" "optex luatex"
+                          ;; LuaJIT is not ported to powerpc64le* yet.
                           ,@(if (string-prefix? "powerpc64le"
                                                 (or (%current-target-system)
                                                     (%current-system)))
-                              '("luajittex") '())
+                              '("luajittex" "luajithbtex" "mfluajit") '())
                           "cont-en xetex" "cont-en pdftex" "pdfcsplain xetex"
                           "pdfcsplain pdftex" "pdfcsplain luatex" "cslatex pdftex"
                           "mptopdf pdftex" "uplatex euptex" "jadetex pdftex"
@@ -2724,7 +2752,10 @@ formats.")
                    (make-file-writable "web2c/fmtutil.cnf")
                    (substitute* "web2c/fmtutil.cnf"
                      (((string-append "^(" (string-join disabled-formats "|") ")") m)
-                      (string-append "#! " m))))
+                      (string-append "#! " m))
+                     (("translate-file=cp227")
+                      (format #f "translate-file=~a/share/texmf-dist/web2c/cp227"
+                              (assoc-ref inputs "texlive-kpathsea")))))
                  (invoke "fmtutil-sys" "--all"
                          "--fmtdir=web2c"
                          (string-append "--cnffile=web2c/fmtutil.cnf"))
@@ -2760,7 +2791,7 @@ formats.")
          ("texlive-kpathsea" ,texlive-kpathsea)
          ("texlive-cm" ,texlive-cm)
          ("texlive-fonts-latex" ,texlive-fonts-latex)
-         ("texlive-fonts-knuth-lib" ,texlive-fonts-knuth-lib)
+         ("texlive-knuth-lib" ,texlive-knuth-lib)
          ("texlive-luatexconfig"
           ,(texlive-origin
             "texlive-luatexconfig" (number->string %texlive-revision)
@@ -2768,7 +2799,7 @@ formats.")
                   "/tex/generic/config/luatexiniconfig.tex"
                   "/web2c/texmfcnf.lua")
             (base32
-             "1gi87wy12r8w8fhx9ajcid382dmqzf6b9070b5nndvbbjrvhwf23")))))
+             "0yjx7nw9mgfgnq1givkzbxh7z7ncw1liaddjgm7n2nwn0aw6xfdg")))))
       (propagated-inputs
        `(("texlive-dehyph-exptl" ,texlive-dehyph-exptl)
          ("texlive-etex" ,texlive-etex)
@@ -2793,6 +2824,7 @@ formats.")
          ("texlive-hyphen-estonian" ,texlive-hyphen-estonian)
          ("texlive-hyphen-ethiopic" ,texlive-hyphen-ethiopic)
          ("texlive-hyphen-finnish" ,texlive-hyphen-finnish)
+         ("texlive-hyphen-schoolfinnish" ,texlive-hyphen-schoolfinnish)
          ("texlive-hyphen-french" ,texlive-hyphen-french)
          ("texlive-hyphen-friulan" ,texlive-hyphen-friulan)
          ("texlive-hyphen-galician" ,texlive-hyphen-galician)
@@ -2810,6 +2842,7 @@ formats.")
          ("texlive-hyphen-latin" ,texlive-hyphen-latin)
          ("texlive-hyphen-latvian" ,texlive-hyphen-latvian)
          ("texlive-hyphen-lithuanian" ,texlive-hyphen-lithuanian)
+         ("texlive-hyphen-macedonian" ,texlive-hyphen-macedonian)
          ("texlive-hyphen-mongolian" ,texlive-hyphen-mongolian)
          ("texlive-hyphen-norwegian" ,texlive-hyphen-norwegian)
          ("texlive-hyphen-occitan" ,texlive-hyphen-occitan)
@@ -2835,6 +2868,11 @@ formats.")
          ("texlive-unicode-data" ,texlive-unicode-data)
          ("texlive-ukrhyph" ,texlive-ukrhyph)
          ("texlive-ruhyphen" ,texlive-ruhyphen)
+         ("texlive-latex-l3kernel" ,texlive-latex-l3kernel)
+         ;; TODO: This dependency isn't needed for LaTeX version 2021-06-01
+         ;; and later. See:
+         ;; https://tug.org/pipermail/tex-live/2021-June/047180.html
+         ("texlive-latex-l3packages" ,texlive-latex-l3packages)
          ("texlive-latexconfig" ,texlive-latexconfig)))
       (home-page "https://www.ctan.org/pkg/latex-base")
       (synopsis "Base sources of LaTeX")
@@ -2845,6 +2883,60 @@ with the required packages, constitutes what every LaTeX distribution should
 contain.")
       (license license:lppl1.3c+))))
 
+(define-public texlive-latex-atveryend
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-atveryend"
+              '("/doc/latex/atveryend/README.md"
+                "/tex/latex/atveryend/")
+              (base32
+               "1gz5ssxjlqa53a8blsmdk2qjahzc910ldh26xjxfxgqnqb03rqx7")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/atveryend")
+    (synopsis "Hooks at the very end of a document")
+    (description
+     "This LaTeX packages provides two hooks for @code{\\end@{document@}}
+that are executed after the hook of @code{\\AtEndDocument}:
+@code{\\AfterLastShipout} can be used for code that is to be executed right
+after the last @code{\\clearpage} before the @file{.aux} file is closed.
+@code{\\AtVeryEndDocument} is used for code after closing and final reading
+of the @file{.aux} file.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-latex-auxhook
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-auxhook"
+              '("/doc/latex/auxhook/README.md"
+                "/tex/latex/auxhook/")
+              (base32
+               "1xh445shr00rh43nnz03xh8k2mdrxgsr03lllqpgvwhm6yzsydkf")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/auxhook")
+    (synopsis "Hooks for auxiliary files")
+    (description
+     "This package provides hooks for adding code at the beginning of
+@file{.aux} files.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-latex-epstopdf-pkg
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-epstopdf-pkg"
+              '("/doc/latex/epstopdf-pkg/"
+                "/tex/latex/epstopdf-pkg/")
+              (base32
+               "0zl6jiyp2cvvyqx3lwxdkcvvnkqgbwj4issq07cagf61gljq6fns")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/epstopdf-pkg")
+    (synopsis "Call @command{epstopdf} \"on the fly\"")
+    (description
+     "The package adds support for EPS files in the @code{graphicx} package
+when running under pdfTeX.  If an EPS graphic is detected, the package
+spawns a process to convert the EPS to PDF, using the script
+@command{epstopdf}.")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-latex-filecontents
   (package
     (name "texlive-latex-filecontents")
@@ -2855,7 +2947,7 @@ contain.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1h78zw0vhldx478zs4v86ajg7vpkysd1kg3npc480qqls3q6ba40"))))
+                "1cmfigg5jx3hmdyh4gv8kwxi7dg076ldkxmr46s05xvhzjig1z9x"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/filecontents"))
     (home-page "https://www.ctan.org/pkg/filecontents")
@@ -2870,31 +2962,6 @@ overwrite existing files and letting you use @code{filecontents} /
 @code{filecontents*} anywhere.")
     (license license:lppl1.3c+)))
 
-(define-public texlive-generic-ifxetex
-  (package
-    (name "texlive-generic-ifxetex")
-    (version (number->string %texlive-revision))
-    (source (origin
-              (method svn-fetch)
-              (uri (texlive-ref "generic" "ifxetex"))
-              (file-name (string-append name "-" version "-checkout"))
-              (sha256
-               (base32
-                "0w2xj7n0szavj329kds09q626szkc378p3w0sk022q0ln4ksz86d"))))
-    (build-system texlive-build-system)
-    (arguments
-     '(#:tex-directory "generic/ifxetex"
-       #:tex-format "xelatex"))
-    (inputs
-     `(("texlive-latex-filecontents" ,texlive-latex-filecontents)))
-    (home-page "https://www.ctan.org/pkg/ifxetex")
-    (synopsis "Am I running under XeTeX?")
-    (description
-     "This is a simple package which provides an @code{\\ifxetex} conditional,
-so that other code can determine that it is running under XeTeX.  The package
-requires the e-TeX extensions to the TeX primitive set.")
-    (license license:lppl1.3c+)))
-
 (define-public texlive-epsf
   (package
     (inherit (simple-texlive-package
@@ -2925,7 +2992,7 @@ users, via its Plain TeX version.)")
               (list "/doc/latex/fancyvrb/README"
                     "/tex/latex/fancyvrb/")
               (base32
-               "1dwkcradz9nwpjwmv1sjzn77lvw25ypr0rrgmf1kd8pd2mw7dxcn")
+               "0pdilgpw4zc0ipp4z9kdi61nymifyjy2mfpk74xk2cw9vhynkk3w")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/fancyvrb")
     (synopsis "Sophisticated verbatim text")
@@ -2945,8 +3012,10 @@ verbatim source).")
               (list "/doc/latex/graphics-def/README.md"
                     "/tex/latex/graphics-def/")
               (base32
-               "0zrbn9cwfnnrrl3b2zsd74ldksp9jwpvjh7z93ild1m75crpb39a")
+               "0b66fy06safyrd717rfr476g1gz6nqfv1vqvam7ac2yy0g0djb17")
               #:trivial? #t))
+    (propagated-inputs
+     `(("texlive-latex-epstopdf-pkg" ,texlive-latex-epstopdf-pkg)))
     (home-page "https://www.ctan.org/pkg/latex-graphics")
     (synopsis "Color and graphics option files")
     (description
@@ -2982,7 +3051,7 @@ set default \"driver\" options for the color and graphics packages.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0nlfhn55ax89rcvpkrl9570671b62kcr4c9l5ch3w5zw9vmi00dz"))))
+                "0fgjl58f25zvagssz4dwmmsclzw8cr7mx00kdrbx2kcnamcb7h8d"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/graphics"))
     (propagated-inputs
@@ -2997,6 +3066,22 @@ documents.  It comprises the packages color, graphics, graphicx, trig, epsfig,
 keyval, and lscape.")
     (license license:lppl1.3c+)))
 
+(define-public texlive-latex-hycolor
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-hycolor"
+              (list "/doc/latex/hycolor/README.md"
+                    "/tex/latex/hycolor/")
+              (base32
+               "026lfb4l7b3q8g6zc68siqandhb1x98cbycn7njknqva6s99aiqn")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/latex-graphics")
+    (synopsis "Color for hyperref and bookmark")
+    (description
+     "This package provides the code for the @code{color} option that is
+used by @code{hyperref} and @code{bookmark}.")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-xcolor
   (let ((template (simple-texlive-package
                    "texlive-xcolor"
@@ -3037,29 +3122,120 @@ tables.")
 (define-public texlive-latex-xcolor
   (deprecated-package "texlive-latex-xcolor" texlive-xcolor))
 
-(define-public texlive-latex-hyperref
-  (package
-    (name "texlive-latex-hyperref")
-    (version "6.84a2")
-    ;; The sources in the TeX Live SVN repository do not contain hluatex.dtx,
-    ;; so we fetch the release from GitHub.
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://github.com/ho-tex/hyperref/"
-                                  "archive/release-" version ".tar.gz"))
-              (file-name (string-append name "-" version ".tar.gz"))
-              (sha256
-               (base32
-                "1d3rmjgzh0025a1dza55zb6nzzlgd1y9snwx45wq1c1vf42m79h2"))))
-    (build-system texlive-build-system)
-    (arguments '(#:tex-directory "latex/hyperref"))
-    (propagated-inputs
-     `(("texlive-latex-oberdiek" ,texlive-latex-oberdiek) ; for ltxcmds.sty
-       ("texlive-latex-url" ,texlive-latex-url)))
-    (home-page "https://www.ctan.org/pkg/hyperref")
-    (synopsis "Extensive support for hypertext in LaTeX")
-    (description
-     "The @code{hyperref} package is used to handle cross-referencing commands
+(define-public texlive-xmltex
+  (let ((template (simple-texlive-package
+                   "texlive-xmltex"
+                   (list
+                    "/doc/otherformats/xmltex/"
+                    "/tex/xmltex/")
+                   (base32
+                    "023gv9axq05vwqz50fnkig24dzahwlc4raks2s8xc4pzrv2dv1zy"))))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:tex-directory _ #t)
+          "tex/xmltex/base")
+         ((#:phases phases '%standard-phases)
+          `(modify-phases ,phases
+             (add-before 'install 'generate-formats
+               (lambda* (#:key inputs #:allow-other-keys)
+                 (mkdir "web2c")
+                 (for-each (lambda (f)
+                             (copy-file f (basename f)))
+                           (find-files "tex" "\\.(ini|tex)$"))
+                 (invoke "fmtutil-sys" "--byfmt" "xmltex"
+                         "--fmtdir=web2c")
+                 (invoke "fmtutil-sys" "--byfmt" "pdfxmltex"
+                         "--fmtdir=web2c")))
+             (add-after 'install 'install-formats-and-wrappers
+               (lambda* (#:key inputs outputs #:allow-other-keys)
+                 (let* ((out (assoc-ref outputs "out"))
+                        (texlive-bin (assoc-ref inputs "texlive-bin"))
+                        (pdftex (string-append texlive-bin "/bin/pdftex"))
+                        (web2c (string-append out "/share/texmf-dist/web2c")))
+                   (mkdir-p web2c)
+                   (copy-recursively "web2c" web2c)
+                   ;; Create convenience command wrappers.
+                   (mkdir-p (string-append out "/bin"))
+                   (symlink pdftex (string-append out "/bin/xmltex"))
+                   (symlink pdftex (string-append out "/bin/pdfxmltex"))
+                   #t)))))))
+      (propagated-inputs
+       ;; The following fonts are propagated as a texlive-updmap.cfg as the font
+       ;; maps need to be recreated for the fonts to be usable.  They are
+       ;; required by xmltex through mlnames.sty and unicode.sty.
+       `(("texlive" ,(texlive-updmap.cfg
+                      (list
+                       texlive-amsfonts
+                       texlive-babel
+                       texlive-courier
+                       texlive-helvetic
+                       texlive-hyperref
+                       texlive-symbol
+                       texlive-tipa
+                       texlive-times
+                       texlive-zapfding
+                       ;; The following fonts, while not required, are used if
+                       ;; available:
+                       texlive-stmaryrd
+                       texlive-wasy)))))
+      (native-inputs
+       `(("texlive-tex-ini-files" ,texlive-tex-ini-files)))
+      (home-page "https://www.ctan.org/pkg/xmltex/")
+      (synopsis "Support for parsing XML documents")
+      (description "The package provides an implementation of a parser for
+documents matching the XML 1.0 and XML Namespace Recommendations.  Element and
+attribute names, as well as character data, may use any characters allowed in
+XML, using UTF-8 or a suitable 8-bit encoding.")
+      (license license:lppl1.0+))))        ;per xmltex/base/readme.txt
+
+(define-public texlive-hyperref
+  (let ((template (simple-texlive-package
+                   "texlive-hyperref"
+                   (list "/doc/latex/hyperref/"
+                         "/source/latex/hyperref/"
+                         ;; These files are not generated from the sources
+                         "/tex/latex/hyperref/minitoc-hyper.sty"
+                         "/tex/latex/hyperref/ntheorem-hyper.sty"
+                         "/tex/latex/hyperref/xr-hyper.sty")
+                   (base32
+                    "0nmbxaq676m2y9fgdji0bxqchmrli4hwhspijaszx51b3ki6bj2h"))))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:tex-directory _ #t)
+          "latex/hyperref")
+         ((#:phases phases)
+          `(modify-phases ,phases
+             (add-after 'unpack 'chdir
+               (lambda _ (chdir "source/latex/hyperref") #t))))))
+      (propagated-inputs
+       `(("texlive-generic-atbegshi" ,texlive-generic-atbegshi)
+         ("texlive-generic-bitset" ,texlive-generic-bitset)
+         ("texlive-generic-etexcmds" ,texlive-generic-etexcmds)
+         ("texlive-generic-gettitlestring" ,texlive-generic-gettitlestring)
+         ("texlive-generic-iftex" ,texlive-generic-iftex)
+         ("texlive-generic-infwarerr" ,texlive-generic-infwarerr)
+         ("texlive-generic-intcalc" ,texlive-generic-intcalc)
+         ("texlive-generic-kvdefinekeys" ,texlive-generic-kvdefinekeys)
+         ("texlive-generic-kvsetkeys" ,texlive-generic-kvsetkeys)
+         ("texlive-generic-ltxcmds" ,texlive-generic-ltxcmds)
+         ("texlive-generic-pdfescape" ,texlive-generic-pdfescape)
+         ("texlive-latex-auxhook" ,texlive-latex-auxhook)
+         ("texlive-latex-atveryend" ,texlive-latex-atveryend)
+         ("texlive-latex-hycolor" ,texlive-latex-hycolor)
+         ("texlive-latex-kvoptions" ,texlive-latex-kvoptions)
+         ("texlive-latex-letltxmacro" ,texlive-latex-letltxmacro)
+         ("texlive-latex-pdftexcmds" ,texlive-latex-pdftexcmds)
+         ("texlive-latex-refcount" ,texlive-latex-refcount)
+         ("texlive-latex-rerunfilecheck" ,texlive-latex-rerunfilecheck)
+         ("texlive-latex-url" ,texlive-latex-url)))
+      (home-page "https://www.ctan.org/pkg/hyperref")
+      (synopsis "Extensive support for hypertext in LaTeX")
+      (description
+       "The @code{hyperref} package is used to handle cross-referencing commands
 in LaTeX to produce hypertext links in the document.  The package provides
 backends for the @code{\\special} set defined for HyperTeX DVI processors; for
 embedded @code{pdfmark} commands for processing by Acrobat
@@ -3067,11 +3243,14 @@ Distiller (@code{dvips} and Y&Y's @code{dvipsone}); for Y&Y's @code{dviwindo};
 for PDF control within pdfTeX and @code{dvipdfm}; for TeX4ht; and for VTeX's
 pdf and HTML backends.  The package is distributed with the @code{backref} and
 @code{nameref} packages, which make use of the facilities of @code{hyperref}.")
-    (license license:lppl1.3+)))
+      (license license:lppl1.3+))))
 
-(define-public texlive-latex-oberdiek
+(define-public texlive-latex-hyperref
+  (deprecated-package "texlive-latex-hyperref" texlive-hyperref))
+
+(define-public texlive-oberdiek
   (package
-    (name "texlive-latex-oberdiek")
+    (name "texlive-oberdiek")
     (version (number->string %texlive-revision))
     (source (origin
               (method svn-fetch)
@@ -3079,7 +3258,7 @@ pdf and HTML backends.  The package is distributed with the @code{backref} and
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0pi2d6gsddcs9wprdbar46s91kdc5fxl1m79g7xrbccsx8s9xbml"))))
+                "1cadrkpdqs65gxsaszfgfd8wqp8pvpik2sjmlyq3hz5p9yna3p9m"))))
     (build-system texlive-build-system)
     (arguments
      '(#:tex-directory "latex/oberdiek"
@@ -3093,7 +3272,7 @@ pdf and HTML backends.  The package is distributed with the @code{backref} and
                (("ifpdf.ins") "ifpdf.dtx"))
              #t)))))
     (propagated-inputs
-     `(("texlive-generic-ifxetex" ,texlive-generic-ifxetex)))
+     `(("texlive-generic-iftex" ,texlive-generic-iftex)))
     (home-page "https://www.ctan.org/pkg/oberdiek")
     (synopsis "Bundle of packages submitted by Heiko Oberdiek")
     (description
@@ -3102,6 +3281,31 @@ better accessibility support for PDF files; extensible chemists reaction
 arrows; record information about document class(es) used; and many more.")
     (license license:lppl1.3+)))
 
+(define-public texlive-latex-oberdiek
+  (deprecated-package "texlive-latex-oberdiek" texlive-oberdiek))
+
+(define-public texlive-latex-rerunfilecheck
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-rerunfilecheck"
+              '("/doc/latex/rerunfilecheck/"
+                "/tex/latex/rerunfilecheck/")
+              (base32
+               "1myz0d5bxhxvl4220ikywh921qld8n324kk9kscqbc5iw4063g56")
+              #:trivial? #t))
+    (propagated-inputs
+     `(("texlive-generic-infwarerr" ,texlive-generic-infwarerr)
+       ("texlive-generic-uniquecounter" ,texlive-generic-uniquecounter)
+       ("texlive-latex-atveryend" ,texlive-latex-atveryend)
+       ("texlive-latex-kvoptions" ,texlive-latex-kvoptions)
+       ("texlive-latex-pdftexcmds" ,texlive-latex-pdftexcmds)))
+    (home-page "https://www.ctan.org/pkg/rerunfilecheck")
+    (synopsis "Checksum based rerun checks on auxiliary files")
+    (description
+     "This package provides additional rerun warnings if some auxiliary
+files have changed.  It is based on MD5 checksum, provided by pdfTeX.")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-latex-tools
   (package
     (name "texlive-latex-tools")
@@ -3112,11 +3316,23 @@ arrows; record information about document class(es) used; and many more.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1wqvn4z0s92h5iqzrvxw7hinzp95avjk9v8lnqbqr4kz6nv4xb9l"))))
+                "1vm5wfyd0vbmv31a29fc7k8y14xiw00msvdx9n7dzsn9zpfjflqs"))))
     (build-system texlive-build-system)
     (arguments
      '(#:tex-directory "latex/tools"
-       #:build-targets '("tools.ins")))
+       #:build-targets '("tools.ins")
+       #:phases (modify-phases %standard-phases
+                  (add-after 'install 'provide-array-2016-10-06.sty
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      ;; XXX: array.sty does:
+                      ;;  "DeclareRelease{}{2016-10-06}{array-2016-10-06.sty}"
+                      ;; ...which causes some users (hypre) to look for that
+                      ;; file specifically.  Provide it.
+                      (with-directory-excursion (string-append
+                                                 (assoc-ref outputs "out")
+                                                 "/share/texmf-dist/tex"
+                                                 "/latex/tools")
+                        (symlink "array.sty" "array-2016-10-06.sty")))))))
     (home-page "https://www.ctan.org/pkg/latex-tools")
     (synopsis "LaTeX standard tools bundle")
     (description
@@ -3181,10 +3397,15 @@ Live distribution.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0s77z2cbv841l45qrpf0s8qhzfa4wi689lg7zkw88qg18nzvy0ly"))))
+                "068xkinrkl6qjf8r6a9i0msvnzp4y7a3gnd2h12ws0km1dv19r20"))))
     (build-system texlive-build-system)
     (arguments
-     '(#:tex-directory "latex/l3kernel"))
+     '(#:tex-directory "latex/l3kernel"
+       #:tex-engine "tex"
+       #:tex-format #f
+       #:texlive-latex-base #f))
+    (native-inputs
+     `(("texlive-docstrip" ,texlive-docstrip)))
     (home-page "https://www.ctan.org/pkg/l3kernel")
     (synopsis "LaTeX3 programmers’ interface")
     (description
@@ -3195,20 +3416,59 @@ code are built: it is an API for TeX programmers.  The packages are set up so
 that the LaTeX3 conventions can be used with regular LaTeX 2e packages.")
     (license license:lppl1.3c+)))
 
-(define-public texlive-latex-l3packages
+(define-public texlive-latex-l3backend
   (package
-    (name "texlive-latex-l3packages")
+    (name "texlive-latex-l3backend")
     (version (number->string %texlive-revision))
     (source (origin
               (method svn-fetch)
-              (uri (texlive-ref "latex" "l3packages"))
+              (uri (texlive-ref "latex" "l3backend"))
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1cv4fk9pabh7mkxhfsdmh4k8xpmzg1psgcsvd11c869m7n3a629h"))))
+                "0mlwyzssqn6wkyv9hzp24d40p8f20zrjqgvqyqs1rd7q7awan42a"))))
+    (build-system texlive-build-system)
+    (arguments
+     '(#:tex-directory "latex/l3backend"
+       #:tex-engine "tex"
+       #:tex-format #f
+       #:texlive-latex-base #f))
+    (native-inputs
+     `(("texlive-docstrip" ,texlive-docstrip)))
+    (home-page "https://www.ctan.org/pkg/l3backend")
+    (synopsis "LaTeX3 backend drivers")
+    (description
+     "This package forms parts of expl3, and contains the code used to
+interface with backends (drivers) across the expl3 codebase. The functions
+here are defined differently depending on the engine in use. As such, these
+are distributed separately from l3kernel to allow this code to be updated on
+an independent schedule.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-latex-l3packages
+  (package
+    (name "texlive-latex-l3packages")
+    (version (number->string %texlive-revision))
+    (source (texlive-origin name version
+                            '("/source/latex/l3packages/"
+                              ;; These files have been generated with a
+                              ;; bespoke source tree and then modified by
+                              ;; hand. It's unfeasible to recreate them. See:
+                              ;; https://tug.org/pipermail/tex-live/2021-June/047188.html
+                              "/tex/latex/l3packages/xparse/xparse-2018-04-12.sty"
+                              "/tex/latex/l3packages/xparse/xparse-2020-10-01.sty"
+
+                              ;; TODO: This file can be removed when using
+                              ;; LaTeX version 2021-06-01 or newer. See:
+                              ;; https://tug.org/pipermail/tex-live/2021-June/047180.html
+                              "/tex/latex/l3packages/xparse/xparse-generic.tex")
+                            (base32 "05rjxdqhhg7z1z2rmhmwj2qf09xygymayy3jzj9fdphk0pab3amm")))
     (build-system texlive-build-system)
     (arguments
      '(#:tex-directory "latex/l3packages"
+       #:tex-engine "tex"
+       #:tex-format #f
+       #:texlive-latex-base #f
        ;; build-targets must be specified manually since they are in
        ;; sub-directories.
        #:build-targets '("l3keys2e.ins" "xparse.ins" "xfrac.ins" "xfp.ins" "xtemplate.ins")
@@ -3220,16 +3480,23 @@ that the LaTeX3 conventions can be used with regular LaTeX 2e packages.")
            (lambda _
              (let ((cwd (getcwd)))
                (setenv "TEXINPUTS"
-                       (string-append cwd "/l3keys2e:"
-                                      cwd "/xparse:"
-                                      cwd "/xfrac:"
-                                      cwd "/xfp:"
-                                      cwd "/xtemplate"
+                       (string-append cwd "/source/latex/l3packages/l3keys2e:"
+                                      cwd "/source/latex/l3packages/xparse:"
+                                      cwd "/source/latex/l3packages/xfrac:"
+                                      cwd "/source/latex/l3packages/xfp:"
+                                      cwd "/source/latex/l3packages/xtemplate"
                                       ;; The terminating ":" is required to include the
                                       ;; l3kernel input as well.
                                       ":")))
-             #t)))
+             #t))
+         (add-after 'install 'copy-generated-files
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((dest (string-append (assoc-ref outputs "out")
+                                        "/share/texmf-dist/tex/latex/l3packages")))
+               (copy-recursively "tex/latex/l3packages/xparse" dest)))))
        ))
+    (native-inputs
+     `(("texlive-docstrip" ,texlive-docstrip)))
     (propagated-inputs
      `(("texlive-latex-l3kernel" ,texlive-latex-l3kernel)))
     (home-page "https://www.ctan.org/pkg/l3packages")
@@ -3250,58 +3517,84 @@ programming tools and kernel sup­port.  Packages provided in this release are:
 @end enumerate\n")
     (license license:lppl1.3c+)))
 
-(define-public texlive-latex-fontspec
-  (package
-    (name "texlive-latex-fontspec")
-    (version (number->string %texlive-revision))
-    (source (origin
-              (method svn-fetch)
-              (uri (texlive-ref "latex" "fontspec"))
-              (file-name (string-append name "-" version "-checkout"))
-              (sha256
-               (base32
-                "1223cw029n6zff7pqpwbsq1x8v3w63smczkmnybqxkw5h2za8gbz"))))
-    (build-system texlive-build-system)
-    (arguments
-     '(#:tex-directory "latex/fontspec"
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'install 'install-default-fontspec.cfg
-           (lambda* (#:key outputs #:allow-other-keys)
-             (with-output-to-file
-                 (string-append (assoc-ref outputs "out")
-                                "/share/texmf-dist/tex/latex/fontspec/fontspec.cfg")
-               (lambda _
-                 (display "\
-%%% FONTSPEC.CFG %%%
-%
-% This configuration file sets up TeX Ligatures by default for all fonts loaded
-% with `\\setmainfont` and `\\setsansfont`.
-%
-% In addition, `\\setmonofont` has default features to enforce \"monospace\"
-% settings with regard to space stretchability and shrinkability.
-
-\\defaultfontfeatures
- [\\rmfamily,\\sffamily]
- {Ligatures=TeX}
-
-\\defaultfontfeatures
- [\\ttfamily]
- {WordSpace={1,0,0},
-  HyphenChar=None,
-  PunctuationSpace=WordSpace}
-")))
-             #t)))))
-    (propagated-inputs
-     `(("texlive-latex-l3packages" ,texlive-latex-l3packages)))
-    (home-page "https://www.ctan.org/pkg/fontspec")
-    (synopsis "Advanced font selection in XeLaTeX and LuaLaTeX")
-    (description
-     "Fontspec is a package for XeLaTeX and LuaLaTeX.  It provides an
+(define-public texlive-fontspec
+  (let ((template (simple-texlive-package
+                   "texlive-fontspec"
+                   (list "/doc/latex/fontspec/"
+                         "/source/latex/fontspec/"
+                         "/tex/latex/fontspec/fontspec.cfg")
+                   (base32
+                    "06rms8dw1j67v3rgv6xmfykdmgbxi5rp78yxc782cy1sw07blgsg"))))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:tex-directory _ #t)
+          "latex/fontspec")
+         ((#:phases phases)
+          `(modify-phases ,phases
+             (add-after 'unpack 'chdir
+               (lambda _ (chdir "source/latex/fontspec/") #t))))))
+      (propagated-inputs
+       `(("texlive-latex-l3packages" ,texlive-latex-l3packages)))
+      (home-page "https://www.ctan.org/pkg/fontspec")
+      (synopsis "Advanced font selection in XeLaTeX and LuaLaTeX")
+      (description
+       "Fontspec is a package for XeLaTeX and LuaLaTeX.  It provides an
 automatic and unified interface to feature-rich AAT and OpenType fonts through
 the NFSS in LaTeX running on XeTeX or LuaTeX engines.  The package requires
 the l3kernel and xparse bundles from the LaTeX 3 development team.")
-    (license license:lppl1.3+)))
+      (license license:lppl1.3+))))
+
+(define-public texlive-latex-fontspec
+  (deprecated-package "texlive-latex-fontspec" texlive-fontspec))
+
+(define-public texlive-l3build
+  (let ((template (simple-texlive-package
+                   "texlive-l3build"
+                   (list "/doc/latex/l3build/"
+                         "/doc/man/man1/l3build.1"
+                         "/scripts/l3build/"
+                         "/tex/latex/l3build/"
+                         ;; TODO: The dtx file builds only the documentation.
+                         ;; We avoid this for a simpler package definition,
+                         ;; but it may be possible to exclude
+                         ;; /doc/latex/l3build and the man page in the future.
+                         "/source/latex/l3build/")
+                   (base32
+                    "1fcay05jj53qgp2b98jpawi0id298fs5xc4y1r5krrfr4sp4hd59")
+                   #:trivial? #t)))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:phases phases)
+          `(modify-phases ,phases
+             (add-after 'install 'patch-shebangs-again
+               (lambda* (#:key inputs outputs #:allow-other-keys)
+                 ;; XXX: Since the 'patch-shebangs' phase cannot change the
+                 ;; original source files patch the shebangs again here.
+                 (let* ((coreutils (assoc-ref inputs "coreutils"))
+                        (texlive-bin (assoc-ref inputs "texlive-bin"))
+                        (path (list (string-append coreutils "/bin")
+                                    (string-append texlive-bin "/bin"))))
+                   (for-each (lambda (file)
+                               (format #t "~a~%" file)
+                               (patch-shebang file path))
+                             (find-files (assoc-ref outputs "out")))
+                   #t)))))))
+      (inputs
+       `(("coreutils" ,coreutils)
+         ("texlive-bin" ,texlive-bin)))
+      (home-page "https://github.com/latex3/luaotfload")
+      (synopsis "Testing and building system for LaTeX")
+      (description
+       "The l3build module is designed to support the development of
+high-quality LaTeX code by providing: a unit testing system, automated
+typesetting of code sources, and a reliable packaging system for CTAN
+releases.  The bundle consists of a Lua script to run the tasks and a
+@code{.tex} file which provides the testing environment.")
+      (license license:lppl1.3c+))))
 
 ;; The SVN directory contains little more than a dtx file that generates three
 ;; of the many lua files that should be installed as part of this package.
@@ -3341,97 +3634,38 @@ this bundle for use independent of ConTeXt.")
     ;; GPL version 2 only
     (license license:gpl2)))
 
-(define-public texlive-luatex-luaotfload
-  (package
-    (name "texlive-luatex-luaotfload")
-    (version "2.8-fix-2")
-    ;; The release tarball does not contain all source files.
-    (source (origin
-              (method git-fetch)
-              (uri (git-reference
-                    (url "https://github.com/lualatex/luaotfload")
-                    (commit (string-append "v" version))))
-              (file-name (git-file-name name version))
-              (sha256
-               (base32
-                "0l5l7iq3dxcxl65qaghcpjg27yd9iw1sxa8pnd7xlvlm09dhfdnf"))))
-    (build-system gnu-build-system)
-    (arguments
-     `(#:make-flags
-       (list (string-append "DESTDIR="
-                            (assoc-ref %outputs "out")
-                            "/share/texmf-dist")
-             "all")
-       #:parallel-build? #f ; not supported
-       #:phases
-       (modify-phases %standard-phases
-         (replace 'configure
-           (lambda* (#:key inputs #:allow-other-keys)
-             (substitute* "doc/Makefile"
-               (("rst2man") "rst2man.py")
-               ;; Don't build the PDF.  This requires more of LaTeX.
-               (("\\$\\(DOCPDF\\)") ""))
-
-             (substitute* "Makefile"
-               ;; We don't build the PDF, so don't attempt to install it.
-               (("cp \\$\\(RESOURCES\\) \\$\\(DOCPDF\\)")
-                "cp $(RESOURCES)")
-               (("= \\$\\(DOCPDF\\)") "= ")
-               ;; Fix name of fontloader file
-               (("^LOADER.*= \\$\\(BUILDDIR\\)/fontloader-\\$\\(shell date \\+%F\\).lua")
-                "LOADER = $(BUILDDIR)/fontloader.lua"))
-
-             (mkdir "build")
-
-             ;; Don't download this file.
-             (copy-file (assoc-ref inputs "glyphlist")
-                        "build/glyphlist.txt")
-
-             ;; Don't use git
-             (let ((notes
-                    `((committer . "Philipp Gesang <phg@phi-gamma.net>")
-                      (description . ,version)
-                      (loader . "fontloader.lua")
-                      (revision . "ad480924393fffa2896156e1a32c22f5c61120dd")
-                      (timestamp . "2019-01-01 00:00:00 +0000"))))
-               (substitute* "scripts/mkstatus"
-                 (("local notes.*=.*")
-                  (string-append "local notes = {"
-                                 (string-join
-                                  (map (lambda (entry)
-                                         (format "[\"~a\"]=\"~a\","
-                                                 (symbol->string (car entry))
-                                                 (cdr entry)))
-                                       notes))
-                                 "}"))))
-             #t)))))
-    (native-inputs
-     `(("zip" ,zip)
-       ("unzip" ,unzip)
-       ("graphviz" ,graphviz)
-       ("lualatex" ,(texlive-union (list texlive-luatex-lualibs
-                                         texlive-context-base)))
-       ("python-docutils" ,python-docutils)
-       ("glyphlist"
-        ,(origin
-           (method url-fetch)
-           (uri (string-append "https://raw.githubusercontent.com/adobe-type-tools/"
-                               "agl-aglfn/b2a04cb906f9257cc06a2fe0ad4b3d663bc02136/"
-                               "glyphlist.txt"))
-           (sha256
-            (base32 "1s6svfw23rqzdvflv8frgd4xrwvrmsj8szwzqgcd39dp9rpjafjp"))))))
-    (propagated-inputs
-     `(("texlive-luatex-lualibs" ,texlive-luatex-lualibs)))
-    (home-page "https://github.com/lualatex/luaotfload")
-    (synopsis "OpenType font loader for LuaTeX")
-    (description
-     "Luaotfload is an adaptation of the ConTeXt font loading system for the
+;; TODO: We should be able to build this from the sources on Github with
+;; texlive-l3build, but I haven't been able to get it to work.
+(define-public texlive-luaotfload
+  (let ((template (simple-texlive-package
+                   "texlive-luaotfload"
+                   (list "/doc/luatex/luaotfload/"
+                         "/doc/man/man1/luaotfload-tool.1"
+                         "/doc/man/man5/luaotfload.conf.5"
+                         "/source/luatex/luaotfload/fontloader-reference-load-order.lua"
+                         "/source/luatex/luaotfload/fontloader-reference-load-order.tex"
+                         "/scripts/luaotfload/luaotfload-tool.lua"
+                         "/tex/luatex/luaotfload/")
+                   (base32
+                    "10wznvxx3qsl88n560py5vyx5r3a3914anbqfhwcmhmwg097xxl4")
+                   #:trivial? #t)))
+    (package
+      (inherit template)
+      (propagated-inputs
+       `(("texlive-luatex-lualibs" ,texlive-luatex-lualibs)))
+      (home-page "https://github.com/lualatex/luaotfload")
+      (synopsis "OpenType font loader for LuaTeX")
+      (description
+       "Luaotfload is an adaptation of the ConTeXt font loading system for the
 Plain and LaTeX formats.  It allows OpenType fonts to be loaded with font
 features accessible using an extended font request syntax while providing
 compatibilitywith XeTeX.  By indexing metadata in a database it facilitates
 loading fonts by their proper names instead of file names.")
-    ;; GPL version 2 only
-    (license license:gpl2)))
+      ;; GPL version 2 only
+      (license license:gpl2))))
+
+(define-public texlive-luatex-luaotfload
+  (deprecated-package "texlive-luatex-luaotfload" texlive-luaotfload))
 
 (define-public texlive-latex-amsmath
   (package
@@ -3443,7 +3677,7 @@ loading fonts by their proper names instead of file names.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0qgk2332dacsxn1z95qzp35gbs7wrzl1ipjdhnmk1r897msm4sf5"))))
+                "172zybw7rp05jca8wl6x0mh6z6gncdyi1j9wdfyjnhbvqw0z4wi4"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/amsmath"))
     (home-page "https://www.ctan.org/pkg/amsmath")
@@ -3462,64 +3696,86 @@ mathematics, and @code{ntheoremntheorem}, for specifying theorem (and similar)
 definitions.")
     (license license:lppl1.3c+)))
 
-(define-public texlive-latex-amscls
-  (package
-    (name "texlive-latex-amscls")
-    (version (number->string %texlive-revision))
-    (source (origin
-              (method svn-fetch)
-              (uri (texlive-ref "latex" "amscls"))
-              (file-name (string-append name "-" version "-checkout"))
-              (sha256
-               (base32
-                "0c2j9xh4qpi0x1vvcxdjxq6say0zhyr569fryi5cmhp8bclh4kca"))))
-    (build-system texlive-build-system)
-    (arguments
-     `(#:tex-directory "latex/amscls"))
-    (home-page "https://www.ctan.org/pkg/amscls")
-    (synopsis "AMS document classes for LaTeX")
-    (description
-     "This bundle contains three AMS classes: @code{amsartamsart} (for writing
+(define-public texlive-amscls
+  (let ((template (simple-texlive-package
+                   "texlive-amscls"
+                   (list "/doc/latex/amscls/"
+                         "/source/latex/amscls/"
+                         "/bibtex/bst/amscls/")
+                   (base32
+                    "0vw0b815slvfqfd8qffyfzb3xfvyv6k77m12xp0l67hs8p08s5b7"))))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:tex-directory _ #t)
+          "latex/amscls")
+         ((#:phases phases)
+          `(modify-phases ,phases
+             (add-after 'unpack 'chdir
+               (lambda _ (chdir "source/latex/amscls/") #t))))))
+      (home-page "https://www.ctan.org/pkg/amscls")
+      (synopsis "AMS document classes for LaTeX")
+      (description
+       "This bundle contains three AMS classes: @code{amsartamsart} (for writing
 articles for the AMS), @code{amsbookamsbook} (for books) and
 @code{amsprocamsproc} (for proceedings), together with some supporting
 material.  The material is made available as part of the AMS-LaTeX
 distribution.")
-    (license license:lppl1.3c+)))
+      (license license:lppl1.3c+))))
 
-(define-public texlive-latex-babel
-  (package
-    (name "texlive-latex-babel")
-    (version (number->string %texlive-revision))
-    (source (origin
-              (method svn-fetch)
-              (uri (texlive-ref "latex" "babel"))
-              (file-name (string-append name "-" version "-checkout"))
-              (sha256
-               (base32
-                "1rwqq841i1rxywymzwkw0cw2yhgvxwjx5mgygfasvypwrwll6f6s"))))
-    (build-system texlive-build-system)
-    (arguments
-     '(#:tex-directory "generic/babel"
-       #:phases
-       (modify-phases %standard-phases
-         ;; This package tries to produce babel.aux twice but refuses to
-         ;; overwrite the first one.
-         (add-before 'build 'fix-ins
-           (lambda _
-             (substitute* "babel.ins"
-               (("askonceonly") "askforoverwritefalse"))
-             #t)))))
-    (home-page "https://www.ctan.org/pkg/babel")
-    (synopsis "Multilingual support for Plain TeX or LaTeX")
-    (description
-     "The package manages culturally-determined typographical (and other)
+(define-public texlive-latex-amscls
+  (deprecated-package "texlive-latex-amscls" texlive-amscls))
+
+(define-public texlive-babel
+  (let ((template (simple-texlive-package
+                   "texlive-babel"
+                   (list "/doc/latex/babel/"
+                         "/source/latex/babel/"
+                         "/makeindex/babel/")
+                   (base32
+                    "0qr5vjp79g1c1l6k173qhfdfabgbky73wymzhm56pazx4a8r08wz"))))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:tex-directory _ #t)
+          "generic/babel")
+         ((#:phases phases)
+          `(modify-phases ,phases
+             (add-after 'unpack 'chdir
+               (lambda _ (chdir "source/latex/babel/") #t))
+             ;; This package tries to produce babel.aux twice but refuses to
+             ;; overwrite the first one.
+             (add-before 'build 'fix-ins
+               (lambda _
+                 (substitute* "babel.ins"
+                   (("askonceonly") "askforoverwritefalse"))
+                 #t))
+             (add-after 'install 'install-locales
+               (lambda* (#:key outputs #:allow-other-keys)
+                 (let ((locale-directory
+                        (string-append (assoc-ref outputs "out")
+                                       "/share/texmf-dist/tex/generic/babel/locale/")))
+                   (mkdir-p locale-directory)
+                   (invoke "unzip" "locale.zip" "-d"
+                           locale-directory))))))))
+      (native-inputs
+       `(("unzip" ,unzip)))
+      (home-page "https://www.ctan.org/pkg/babel")
+      (synopsis "Multilingual support for Plain TeX or LaTeX")
+      (description
+       "The package manages culturally-determined typographical (and other)
 rules, and hyphenation patterns for a wide range of languages.  A document may
 select a single language to be supported, or it may select several, in which
 case the document may switch from one language to another in a variety of
 ways.  Babel uses contributed configuration files that provide the detail of
 what has to be done for each language.  Users of XeTeX are advised to use the
 polyglossia package rather than Babel.")
-    (license license:lppl1.3+)))
+      (license license:lppl1.3+))))
+
+(define-public texlive-latex-babel
+  (deprecated-package "texlive-latex-babel" texlive-babel))
 
 (define-public texlive-generic-babel-english
   (package
@@ -3553,7 +3809,7 @@ for Canadian and USA text.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "129f9w41cb6yyrr6kpv3zz9ml6334hyq1wcz7j9jn47p0hlxqfk8"))))
+                "1x9hnr9gz5mqdb97cinivn9xjnfr4qi996aa4cnr2sm2dsbhqxnp"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "generic/babel-german"))
     (home-page "https://www.ctan.org/pkg/babel-german")
@@ -3571,7 +3827,7 @@ Swiss varieties of German.")
                    "texlive-babel-swedish"
                    (list "/source/generic/babel-swedish/")
                    (base32
-                    "0swdg2l5i7cbcvy4q4xgsnwwnbxiyvs6f5b72kiw7mjn24v27g8f"))))
+                    "03rp4n9wkqyckman765r8v8j2pg5fg9frbfxsnhq0i2mr0yhbr6v"))))
     (package
       (inherit template)
       (arguments
@@ -3614,30 +3870,133 @@ T2* and X2 encodings. These encodings cover (between them) pretty much every
 language that is written in a Cyrillic alphabet.")
     (license license:lppl1.3c+)))
 
-(define-public texlive-latex-psnfss
-  (package
-    (name "texlive-latex-psnfss")
-    (version (number->string %texlive-revision))
-    (source (origin
-              (method svn-fetch)
-              (uri (texlive-ref "latex" "psnfss"))
-              (file-name (string-append name "-" version "-checkout"))
-              (sha256
-               (base32
-                "1920dcq8613yzprasbg80fh4fcjcidvvl54wkx438nimyxcri7qz"))))
-    (build-system texlive-build-system)
-    (arguments '(#:tex-directory "latex/psnfss"))
-    (home-page "https://www.ctan.org/pkg/psnfss")
-    (synopsis "Font support for common PostScript fonts")
-    (description
-     "The PSNFSS collection includes a set of files that provide a complete
+(define-public texlive-psnfss
+  (let ((template (simple-texlive-package
+                   "texlive-psnfss"
+                   (list "/doc/latex/psnfss/"
+                         "/source/latex/psnfss/"
+                         "/fonts/map/dvips/psnfss/"
+
+                         ;; Only the .sty files are generated from the sources.
+                         "/tex/latex/psnfss/8rbch.fd"
+                         "/tex/latex/psnfss/8rpag.fd"
+                         "/tex/latex/psnfss/8rpbk.fd"
+                         "/tex/latex/psnfss/8rpcr.fd"
+                         "/tex/latex/psnfss/8rphv.fd"
+                         "/tex/latex/psnfss/8rpnc.fd"
+                         "/tex/latex/psnfss/8rppl.fd"
+                         "/tex/latex/psnfss/8rptm.fd"
+                         "/tex/latex/psnfss/8rput.fd"
+                         "/tex/latex/psnfss/8rpzc.fd"
+                         "/tex/latex/psnfss/omlbch.fd"
+                         "/tex/latex/psnfss/omlpag.fd"
+                         "/tex/latex/psnfss/omlpbk.fd"
+                         "/tex/latex/psnfss/omlpcr.fd"
+                         "/tex/latex/psnfss/omlphv.fd"
+                         "/tex/latex/psnfss/omlpnc.fd"
+                         "/tex/latex/psnfss/omlppl.fd"
+                         "/tex/latex/psnfss/omlptm.fd"
+                         "/tex/latex/psnfss/omlptmcm.fd"
+                         "/tex/latex/psnfss/omlput.fd"
+                         "/tex/latex/psnfss/omlpzc.fd"
+                         "/tex/latex/psnfss/omlzplm.fd"
+                         "/tex/latex/psnfss/omlzpple.fd"
+                         "/tex/latex/psnfss/omlztmcm.fd"
+                         "/tex/latex/psnfss/omsbch.fd"
+                         "/tex/latex/psnfss/omspag.fd"
+                         "/tex/latex/psnfss/omspbk.fd"
+                         "/tex/latex/psnfss/omspcr.fd"
+                         "/tex/latex/psnfss/omsphv.fd"
+                         "/tex/latex/psnfss/omspnc.fd"
+                         "/tex/latex/psnfss/omsppl.fd"
+                         "/tex/latex/psnfss/omsptm.fd"
+                         "/tex/latex/psnfss/omsput.fd"
+                         "/tex/latex/psnfss/omspzc.fd"
+                         "/tex/latex/psnfss/omspzccm.fd"
+                         "/tex/latex/psnfss/omszplm.fd"
+                         "/tex/latex/psnfss/omszpple.fd"
+                         "/tex/latex/psnfss/omsztmcm.fd"
+                         "/tex/latex/psnfss/omxpsycm.fd"
+                         "/tex/latex/psnfss/omxzplm.fd"
+                         "/tex/latex/psnfss/omxzpple.fd"
+                         "/tex/latex/psnfss/omxztmcm.fd"
+                         "/tex/latex/psnfss/ot1bch.fd"
+                         "/tex/latex/psnfss/ot1pag.fd"
+                         "/tex/latex/psnfss/ot1pbk.fd"
+                         "/tex/latex/psnfss/ot1pcr.fd"
+                         "/tex/latex/psnfss/ot1phv.fd"
+                         "/tex/latex/psnfss/ot1pnc.fd"
+                         "/tex/latex/psnfss/ot1ppl.fd"
+                         "/tex/latex/psnfss/ot1pplj.fd"
+                         "/tex/latex/psnfss/ot1pplx.fd"
+                         "/tex/latex/psnfss/ot1ptm.fd"
+                         "/tex/latex/psnfss/ot1ptmcm.fd"
+                         "/tex/latex/psnfss/ot1put.fd"
+                         "/tex/latex/psnfss/ot1pzc.fd"
+                         "/tex/latex/psnfss/ot1zplm.fd"
+                         "/tex/latex/psnfss/ot1zpple.fd"
+                         "/tex/latex/psnfss/ot1ztmcm.fd"
+                         "/tex/latex/psnfss/t1bch.fd"
+                         "/tex/latex/psnfss/t1pag.fd"
+                         "/tex/latex/psnfss/t1pbk.fd"
+                         "/tex/latex/psnfss/t1pcr.fd"
+                         "/tex/latex/psnfss/t1phv.fd"
+                         "/tex/latex/psnfss/t1pnc.fd"
+                         "/tex/latex/psnfss/t1ppl.fd"
+                         "/tex/latex/psnfss/t1pplj.fd"
+                         "/tex/latex/psnfss/t1pplx.fd"
+                         "/tex/latex/psnfss/t1ptm.fd"
+                         "/tex/latex/psnfss/t1put.fd"
+                         "/tex/latex/psnfss/t1pzc.fd"
+                         "/tex/latex/psnfss/ts1bch.fd"
+                         "/tex/latex/psnfss/ts1pag.fd"
+                         "/tex/latex/psnfss/ts1pbk.fd"
+                         "/tex/latex/psnfss/ts1pcr.fd"
+                         "/tex/latex/psnfss/ts1phv.fd"
+                         "/tex/latex/psnfss/ts1pnc.fd"
+                         "/tex/latex/psnfss/ts1ppl.fd"
+                         "/tex/latex/psnfss/ts1pplj.fd"
+                         "/tex/latex/psnfss/ts1pplx.fd"
+                         "/tex/latex/psnfss/ts1ptm.fd"
+                         "/tex/latex/psnfss/ts1put.fd"
+                         "/tex/latex/psnfss/ts1pzc.fd"
+                         "/tex/latex/psnfss/ufplm.fd"
+                         "/tex/latex/psnfss/ufplmbb.fd"
+                         "/tex/latex/psnfss/upsy.fd"
+                         "/tex/latex/psnfss/upzd.fd")
+                   (base32
+                    "11f14dzhwsy4pli21acccip43d36nf3pac33ihjffnps1i2mhqkd"))))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:tex-directory _ #t)
+          "latex/psnfss")
+         ((#:phases phases)
+          `(modify-phases ,phases
+             (add-after 'unpack 'chdir
+               (lambda _
+                 (chdir "source/latex/psnfss") #t))))))
+      (native-inputs
+       `(("texlive-cm" ,texlive-cm)))
+      (home-page "https://www.ctan.org/pkg/psnfss")
+      (synopsis "Font support for common PostScript fonts")
+      (description
+       "The PSNFSS collection includes a set of files that provide a complete
 working setup of the LaTeX font selection scheme (NFSS2) for use with common
-PostScript fonts.  It covers the so-called \"Base\" fonts (which are built
-into any Level 2 PostScript printing device and the Ghostscript interpreter)
-and a number of free fonts.  It provides font definition files, macros and
-font metrics.  The bundle as a whole is part of the LaTeX required set of
-packages.")
-    (license license:lppl1.2+)))
+PostScript fonts.  The base set of text fonts covered by PSNFSS includes the
+AvantGarde, Bookman, Courier, Helvetica, New Century Schoolbook, Palatino,
+Symbol, Times Roman and Zapf Dingbats fonts.  In addition, the fonts Bitstream
+Charter and Adobe Utopia are covered.  Separate packages are provided to load
+each font for use as the main text font.  The package @code{helvet} allows
+Helvetica to be loaded with its size scaled to something more appropriate for
+use as a Sans-Serif font to match Times, while @code{pifont} provides the
+means to select single glyphs from symbol fonts.  The bundle as a whole is
+part of the LaTeX required set of packages.")
+      (license license:lppl1.2+))))
+
+(define-public texlive-latex-psnfss
+  (deprecated-package "texlive-latex-psnfss" texlive-psnfss))
 
 ;; For user profiles
 (define-public texlive-base
@@ -3646,17 +4005,19 @@ packages.")
                 texlive-dvips
                 texlive-fontname
                 texlive-cm
+                texlive-cm-super ; to avoid bitmap fonts
                 texlive-fonts-latex
-                texlive-metafont-base
+                texlive-metafont
                 texlive-latex-base
+                texlive-kpathsea       ;for mktex.opt
                 ;; LaTeX packages from the "required" set.
                 texlive-latex-amsmath
-                texlive-latex-amscls
-                texlive-latex-babel
+                texlive-amscls
+                texlive-babel
                 texlive-generic-babel-english
                 texlive-latex-cyrillic
                 texlive-latex-graphics
-                texlive-latex-psnfss
+                texlive-psnfss
                 texlive-latex-tools
                 texlive-tetex)))
     (package
@@ -3684,144 +4045,86 @@ It includes little more than the required set of LaTeX packages.")
                      '()
                      default-packages)))))
 
-(define-public texlive-default-updmap.cfg
-  (origin
-    (method url-fetch)
-    (uri (string-append "https://tug.org/svn/texlive/tags/"
-                        %texlive-tag "/Master/texmf-dist/web2c/updmap.cfg"
-                        "?revision=" (number->string %texlive-revision)))
-    (file-name (string-append "updmap.cfg-"
-                              (number->string %texlive-revision)))
-    (sha256
-     (base32
-      "0faqknqxs80qp9ywk0by5k85s0yalg97c4lja4q56lsyblrr4j7i"))))
-
-;; For use in package definitions only
-(define-public texlive-union
+;;; TODO: Add a TeX Live profile hook computing fonts maps (and others?)
+;;; configuration from the packages in the profile, similar to what's done
+;;; below.
+(define-public texlive-updmap.cfg
   (lambda* (#:optional (packages '()))
-    "Return 'texlive-union' package which is a union of PACKAGES and the
-standard LaTeX packages."
+    "Return a 'texlive-updmap.cfg' package which contains the fonts map
+configuration of a base set of packages plus PACKAGES."
     (let ((default-packages (match (package-propagated-inputs texlive-base)
                               (((labels packages) ...) packages))))
-      (package (inherit texlive-base)
-        (name "texlive-union")
-        (build-system trivial-build-system)
+      (package
+        (version (number->string %texlive-revision))
+        (source (origin
+                  (method url-fetch)
+                  (uri (string-append "https://tug.org/svn/texlive/tags/"
+                                      %texlive-tag
+                                      "/Master/texmf-dist/web2c/updmap.cfg"
+                                      "?revision=" version))
+                  (file-name "updmap.cfg")
+                  (sha256
+                   (base32
+                    "1q3l7yx5sng080ibfb8z3rdah0hhq170j6xw8z1w8i4w9m37lp94"))))
+        (name "texlive-updmap.cfg")
+        (build-system copy-build-system)
         (arguments
-         '(#:modules ((guix build union)
+         '(#:modules ((guix build copy-build-system)
                       (guix build utils)
-                      (guix build texlive-build-system)
-                      (guix build gnu-build-system)
-                      (guix build gremlin)
-                      (guix elf))
-           #:builder
-           (begin
-             (use-modules (ice-9 match)
-                          (ice-9 popen)
-                          (srfi srfi-26)
-                          (guix build union)
-                          (guix build utils)
-                          (guix build texlive-build-system))
-             (let* ((out       (assoc-ref %outputs "out"))
-                    (texmf.cnf (string-append out "/share/texmf-dist/web2c/texmf.cnf")))
-               ;; Build a modifiable union of all inputs (but exclude bash and
-               ;; the updmap.cfg file)
-               (match (filter (match-lambda
-                                ((name . _)
-                                 (not (member name '("bash"
-                                                     "coreutils"
-                                                     "sed"
-                                                     "updmap.cfg")))))
-                              %build-inputs)
-                 (((names . directories) ...)
-                  (union-build (assoc-ref %outputs "out")
-                               directories
-                               #:create-all-directories? #t
-                               #:log-port (%make-void-port "w"))))
-
-               ;; The configuration file "texmf.cnf" is provided by the
-               ;; "texlive-bin" package.  We take it and override only the
-               ;; setting for TEXMFROOT and TEXMF.  This file won't be consulted
-               ;; by default, though, so we still need to set TEXMFCNF.
-               (substitute* texmf.cnf
-                 (("^TEXMFROOT = .*")
-                  (string-append "TEXMFROOT = " out "/share\n"))
-                 (("^TEXMF = .*")
-                  "TEXMF = $TEXMFROOT/share/texmf-dist\n"))
-               (setenv "PATH" (string-append
-                               (assoc-ref %build-inputs "bash") "/bin:"
-                               (assoc-ref %build-inputs "coreutils") "/bin:"
-                               (assoc-ref %build-inputs "sed") "/bin:"
-                               (string-append out "/bin")))
-               (for-each
-                (cut wrap-program <>
-                     `("TEXMFCNF" ":" suffix (,(dirname texmf.cnf)))
-                     `("TEXMF"    ":" suffix (,(string-append out "/share/texmf-dist"))))
-                (find-files (string-append out "/bin") ".*"))
-
-               ;; Remove invalid maps from config file.
-               (let ((web2c (string-append out "/share/texmf-config/web2c/"))
-                     (maproot (string-append out "/share/texmf-dist/fonts/map/")))
-                 (mkdir-p web2c)
-                 (copy-file
-                  (assoc-ref %build-inputs "updmap.cfg")
-                  (string-append web2c "updmap.cfg"))
-                 (make-file-writable (string-append web2c "updmap.cfg"))
+                      (ice-9 popen)
+                      (ice-9 textual-ports))
+           #:install-plan '(("updmap.cfg" "share/texmf-config/web2c/")
+                            ("map" "share/texmf-dist/fonts/map"))
+           #:phases
+           (modify-phases %standard-phases
+             (add-before 'install 'regenerate-updmap.cfg
+               (lambda _
+                 (make-file-writable "updmap.cfg")
 
+                 ;; Disable unavailable map files.
                  (let* ((port (open-pipe* OPEN_WRITE "updmap-sys"
                                           "--syncwithtrees"
                                           "--nohash"
-                                          (string-append "--cnffile=" web2c "updmap.cfg"))))
+                                          "--cnffile" "updmap.cfg")))
                    (display "Y\n" port)
                    (when (not (zero? (status:exit-val (close-pipe port))))
                      (error "failed to filter updmap.cfg")))
+
+                 ;; Set TEXMFSYSVAR to a sane and writable value; updmap fails
+                 ;; if it cannot create its log file there.
+                 (setenv "TEXMFSYSVAR" (getcwd))
+
                  ;; Generate maps.
                  (invoke "updmap-sys"
-                         (string-append "--cnffile=" web2c "updmap.cfg")
-                         (string-append "--dvipdfmxoutputdir="
-                                        maproot "dvipdfmx/updmap/")
-                         (string-append "--dvipsoutputdir="
-                                        maproot "dvips/updmap/")
-                         (string-append "--pdftexoutputdir="
-                                        maproot "pdftex/updmap/"))
-                 ;; Having this file breaks all file lookups later.
-                 (delete-file (string-append out "/share/texmf-dist/ls-R")))
-               #t))))
-        (inputs
-         `(("bash" ,bash)
-           ,@(map (lambda (package)
-                    (list (package-name package) package))
-                  (append default-packages packages))))
-        (native-inputs
-         `(("coreutils" ,coreutils)
-           ("sed" ,sed)
-           ("updmap.cfg"
-            ,(origin
-               (method url-fetch)
-               (uri (string-append "https://tug.org/svn/texlive/tags/"
-                                   %texlive-tag "/Master/texmf-dist/web2c/updmap.cfg"
-                                   "?revision=" (number->string %texlive-revision)))
-               (file-name (string-append "updmap.cfg-"
-                                         (number->string %texlive-revision)))
-               (sha256
-                (base32
-                 "0faqknqxs80qp9ywk0by5k85s0yalg97c4lja4q56lsyblrr4j7i"))))))
+                         "--cnffile"           "updmap.cfg"
+                         "--dvipdfmxoutputdir" "map/dvipdfmx/updmap/"
+                         "--dvipsoutputdir"    "map/dvips/updmap/"
+                         "--pdftexoutputdir"   "map/pdftex/updmap/"))))))
+        (propagated-inputs (map (lambda (package)
+                                  (list (package-name package) package))
+                                (append default-packages packages)))
         (home-page (package-home-page texlive-bin))
-        (synopsis "Union of TeX Live packages")
-        (description "This package provides a subset of the TeX Live
-distribution.")
-        (license (fold (lambda (package result)
-                         (match (package-license package)
-                           ((lst ...)
-                            (append lst result))
-                           ((? license:license? license)
-                            (cons license result))))
-                       '()
-                       (append default-packages packages)))))))
+        (synopsis "TeX Live fonts map configuration")
+        (description "This package contains the fonts map configuration file
+generated for the base TeX Live packages as well as, optionally, user-provided
+ones.")
+        (license (delete-duplicates
+                  (fold (lambda (package result)
+                          (match (package-license package)
+                            ((lst ...)
+                             (append lst result))
+                            ((? license:license? license)
+                             (cons license result))))
+                        '()
+                        (append default-packages packages))))))))
+
+(define-deprecated/alias texlive-union texlive-updmap.cfg)
+(export texlive-union)
 
 ;; For use in package definitions only
 (define-public texlive-tiny
   (package
-    (inherit (texlive-union))
+    (inherit (texlive-updmap.cfg))
     (name "texlive-tiny")
     (description "This is a very limited subset of the TeX Live distribution.
 It includes little more than the required set of LaTeX packages.")))
@@ -3838,7 +4141,7 @@ It includes little more than the required set of LaTeX packages.")))
                     "/fonts/type1/public/tipa/"
                     "/tex/latex/tipa/")
               (base32
-               "1h53dscv8z6fsa0ax5dys3x11b2f1g60l22hpdf7c88cvdhcs8sn")
+               "0cqzf8vb10b8jw99m9gflskxa4c3rpiznxglix6chl5lai5sgw44")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/tipa")
     (synopsis "Fonts and macros for IPA phonetics characters")
@@ -3981,7 +4284,7 @@ package.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1zyl2pcz2x529gzj5m93a1s4ipymdabf7qdjl3l1673pizd4hfyv"))))
+                "0rhn74ywv000b89w8qjf1i0qsk6kd1mjapfwis14jwjvbjqgvj95"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/draftwatermark"))
     (home-page "https://www.ctan.org/pkg/draftwatermark")
@@ -4045,6 +4348,37 @@ for a variety of alignment purposes, as is evidenced by the examples in
 also provided.")
     (license license:lppl1.3+)))
 
+(define-public texlive-latex-etoc
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-etoc"
+              '("/doc/latex/etoc/README.md"
+                "/doc/latex/etoc/etoc.pdf"
+                "/tex/latex/etoc/")
+              (base32
+               "0198cn75m1y8ggbfv1qlnif0d9275f6mxqsansyqw4np0rv6q9sv")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/etoc")
+    (synopsis "Completely customisable TOCs")
+    (description
+     "This package gives the user complete control of how the entries of
+the table of contents should be constituted from the name, number, and page
+number of each sectioning unit.  The layout is controlled by the definition
+of ‘line styles’ for each sectioning level used in the document.
+
+The package provides its own custom line styles (which may be used as
+examples), and continues to support the standard formatting inherited from
+the LaTeX document classes, but the package can also allow the user to
+delegate the details to packages dealing with list making environments (such
+as enumitem).  The package’s default global style typesets tables of contents
+in a multi-column format, with either a standard heading, or a ruled title
+(optionally with a frame around the table).
+
+The @code{\\tableofcontents} command may be used arbitrarily many times in
+the same document, while @code{\\localtableofcontents} provides a ‘local’
+table of contents.")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-latex-expdlist
   (package
     (name "texlive-latex-expdlist")
@@ -4102,6 +4436,22 @@ but non-expandable ones.")
 (define-public texlive-latex-filemod
   (deprecated-package "texlive-latex-filemod" texlive-filemod))
 
+(define-public texlive-latex-hanging
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-hanging"
+              '("/tex/latex/hanging/")
+              (base32
+               "0s86yaxyfv9zxf4svwg9s13by9vrw38apfg0hsfchsimsdd6gsbb")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/hanging")
+    (synopsis "Typeset hanging paragraphs")
+    (description
+     "The @code{hanging} package facilitates the typesetting of hanging
+paragraphs.  The package also enables typesetting with hanging punctuation,
+by making punctuation characters active.")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-latex-ifplatform
   (package
     (name "texlive-latex-ifplatform")
@@ -4151,6 +4501,42 @@ that are compatible with @code{natbib}: @code{plainnat}, @code{unsrtnat},
 designed from the start to be compatible with @code{natbib}.")
     (license license:lppl)))
 
+(define-public texlive-latex-newunicodechar
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-newunicodechar"
+              '("/doc/latex/newunicodechar/" "/tex/latex/newunicodechar/")
+              (base32
+               "0pwx3ylhvk5hxjnalas00grrbwla79j424i27hrm0zgflq7wsbrj")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/newunicodechar")
+    (synopsis "Definitions of the meaning of Unicode characters")
+    (description
+     "This package provides a friendly interface for defining the meaning of
+Unicode characters.  The document should be processed by (pdf)LaTeX with the
+Unicode option of @code{inputenc} or @code{inputenx}, or by XeLaTeX/LuaLaTeX.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-latex-pdftexcmds
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-pdftexcmds"
+              '("/doc/generic/pdftexcmds/"
+                "/tex/generic/pdftexcmds/")
+              (base32
+               "1hph0djbfc8hlwfc41rzlf8l3ccyyvc0n7a0qdrr9881jwd6iv1b")
+              #:trivial? #t))
+    (propagated-inputs
+     `(("texlive-generic-iftex" ,texlive-generic-iftex)
+       ("texlive-generic-infwarerr" ,texlive-generic-infwarerr)
+       ("texlive-generic-ltxcmds" ,texlive-generic-ltxcmds)))
+    (home-page "https://www.ctan.org/pkg/pdftexcmds")
+    (synopsis "LuaTeX support for pdfTeX utility functions")
+    (description
+     "This package makes a number of utility functions from pdfTeX
+available for luaTeX by reimplementing them using Lua.")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-latex-psfrag
   (package
     (name "texlive-latex-psfrag")
@@ -4191,7 +4577,7 @@ rotated.")
        ("texlive-latex-graphics" ,texlive-latex-graphics)
        ("texlive-latex-ifplatform" ,texlive-latex-ifplatform)
        ("texlive-latex-l3kernel" ,texlive-latex-l3kernel) ; for expl3
-       ("texlive-latex-oberdiek" ,texlive-latex-oberdiek)
+       ("texlive-oberdiek" ,texlive-oberdiek)
        ("texlive-latex-psfrag" ,texlive-latex-psfrag)
        ("texlive-latex-tools" ,texlive-latex-tools) ; for shellesc
        ("texlive-latex-trimspaces" ,texlive-latex-trimspaces)
@@ -4208,6 +4594,25 @@ re-processing.")
 (define-public texlive-latex-pstool
   (deprecated-package "texlive-latex-pstool" texlive-pstool))
 
+(define-public texlive-latex-refcount
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-refcount"
+              (list "/doc/latex/refcount/"
+                    "/tex/latex/refcount/")
+              (base32
+               "0pkmqj2qihndlv3ks33xzqw91q46jx79r3aygj68d8dflyddi583")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/refcount")
+    (synopsis "Counter operations with label references")
+    (description
+     "This package provides the @code{\\setcounterref} and
+@code{\\addtocounterref} commands which use the section (or other) number
+from the reference as the value to put into the counter.  It also provides
+@code{\\setcounterpageref} and @code{\\addtocounterpageref} that do the
+corresponding thing with the page reference of the label.")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-seminar
   (package
     (inherit (simple-texlive-package
@@ -4231,6 +4636,40 @@ recent classes such as powerdot or beamer, both of which are tuned to
 (define-public texlive-latex-seminar
   (deprecated-package "texlive-latex-seminar" texlive-seminar))
 
+(define-public texlive-latex-stackengine
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-stackengine"
+              (list "/doc/latex/stackengine/"
+                    "/tex/latex/stackengine/")
+              (base32
+               "1rbw3dmb6kl3wlnpxacr8cmp2ivac1kpnb33k7r5s3lp1q59ck38")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/stackengine")
+    (synopsis "Customised stacking of objects")
+    (description
+     "The package provides a versatile way to stack objects vertically in a
+variety of customizable ways.  A number of useful macros are provided, all
+of which make use of the @code{stackengine} core.")
+    (license license:lppl1.3+)))
+
+(define-public texlive-latex-tocloft
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-tocloft"
+              '("/doc/latex/tocloft/" "/tex/latex/tocloft/")
+              (base32
+               "0mg3hpzq7wpm6mnnvb0rp3wby56zyxkyai8d2h3f4vk93zrc6awk")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/tocloft")
+    (synopsis "Control table of contents")
+    (description
+     "This package provides control over the typography of the
+@dfn{Table of Contents}, @dfn{List of Figures} and @dfn{List of Tables},
+and the ability to create new ‘List of ...’. The ToC @code{\\parskip} may
+be changed. ")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-latex-trimspaces
   (package
     (name "texlive-latex-trimspaces")
@@ -4329,7 +4768,7 @@ hyperlink to the target of the DOI.")
               (list "/doc/latex/etoolbox/"
                     "/tex/latex/etoolbox/")
               (base32
-               "1cc1vw1ach55g4ff4x30by8k1mg01w199ccxvn72f5khlnnxial0")
+               "070iaj540rglf0c80l0hjkwg6aa7qyskhh4iwyhf7n8vrg5cjjab")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/etoolbox")
     (synopsis "e-TeX tools for LaTeX")
@@ -4504,11 +4943,11 @@ BibLaTeX, and is considered experimental.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0a8f38c2ds1flxcr0apdpyaaz3k6fyalz6dkbrmcv9srjc40mh3n"))))
+                "0a9nrmiwksnpa6iaapirqid974ai56qgin2n4h9mggy9v8gp7r71"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/geometry"))
     (propagated-inputs
-     `(("texlive-latex-oberdiek" ,texlive-latex-oberdiek))) ;for ifpdf
+     `(("texlive-oberdiek" ,texlive-oberdiek))) ;for ifpdf
     (home-page "https://www.ctan.org/pkg/geometry")
     (synopsis "Flexible and complete interface to document dimensions")
     (description
@@ -4555,7 +4994,7 @@ array environments; verbatim handling; and syntax diagrams.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0na7v4hsyx5s67cpjj2dbnq8j67k8lln6b19hmj631gfs27slss1"))))
+                "1ci6hr8hx4g2x359n6wqvw6w8fv42cjjpzxxxd3pn6av5nkaiav3"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/polyglossia"))
     (home-page "https://www.ctan.org/pkg/polyglossia")
@@ -4575,7 +5014,7 @@ and XeLaTeX; it relies on the @code{fontspec} package, version 2.0 at least.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "14b2bc7cqz4ckxxycim9sw6jkrr1pahivm1rdbpz5k6hl967w1s3"))))
+                "19fd0bqxjkzc16bza3w20pnsc90gbhbllm244b3h6sink4dlnn54"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/supertabular"))
     (home-page "https://www.ctan.org/pkg/supertabular")
@@ -4601,7 +5040,7 @@ situations where longtable has problems.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "16jy02m089m7n6v9vbfi4xjgngc1fnvsmmppk8axfwzbhdky3c9c"))))
+                "1qcmcsxdsibca0mad559vhz36xaxsbkivgv1hc98vdyd90fg4y31"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -4695,7 +5134,7 @@ considered obsolete; alternatives are the @code{typearea} package from the
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0rxfpr8vq3brwx5rc7qn91ixlp9zva4zrms8a579fqa1g5yva7vg"))))
+                "1gc2brr2rs495w7qi6spdva1xrza94x7a36dncjdkghnsq8r92h4"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/appendix"))
     (home-page "https://www.ctan.org/pkg/appendix")
@@ -4708,6 +5147,23 @@ environment is provided which can be used instead of the @code{\\appendix}
 command.")
     (license license:lppl)))
 
+(define-public texlive-latex-bookmark
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-bookmark"
+              (list "/doc/latex/bookmark/"
+                    "/tex/latex/bookmark/")
+              (base32
+               "0xwjdah0p4an0fknvgj9y5phl62sf522z6570pvy6c09hkz0j4h1")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/bookmark")
+    (synopsis "Bookmark (outline) organization for hyperref")
+    (description
+     "This package implements a new bookmark (outline) organization for the
+@code{hyperref} package.  Bookmark properties such as style and color.  Other
+action types are available (URI, GoToR, Named).")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-latex-changebar
   (package
     (name "texlive-latex-changebar")
@@ -4745,7 +5201,7 @@ drivers, and VTeX and pdfTeX.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1s1rv6zgw105w2j6ffhnk914qrix87y1ndzri1q72g2kbr91zlbg"))))
+                "0m4r52gw9vwsi1pzwh0cy03jxhwizymi4a2fj3jfs5rrvh105r5y"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -4775,7 +5231,7 @@ copy-and-paste functions work properly.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "16vd99p01a0y30xr5yf1z2j5da9x8gy21vb30wk08jh31zffbaqj"))))
+                "1qa0mh0fy9hcvfsmprv6q50q0qzdjjfbxi3axap26z6zg3qj68bc"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/colortbl"))
     (home-page "https://www.ctan.org/pkg/colortbl")
@@ -4834,7 +5290,7 @@ floats, center, flushleft, and flushright, lists, and pages.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0hrwspqkqfahxyzzsnjyrxlgxj06zw1f3636gx76pvl4xhvdj1cj"))))
+                "1h2zv7cps0pknqhy2dyfclyi002lmsfshm0rn6ywfl9p4fnvh0bc"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -4902,6 +5358,24 @@ the same place.  The package also has a range of techniques for labelling
 footnotes with symbols rather than numbers.")
     (license license:lppl1.3+)))
 
+(define-public texlive-latex-letltxmacro
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-letltxmacro"
+              (list "/doc/latex/letltxmacro/"
+                    "/tex/latex/letltxmacro/")
+              (base32
+               "0yy1m1jiyxq2pssp0pidaa2swx6lyxw3zwpm2r8m0v2r3lvsyyxx")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/letltxmacro")
+    (synopsis "Let assignment for macros")
+    (description
+     "TeX’s @code{\\let} assignment does not work for LaTeX macros with
+optional arguments, or for macros that are defined as robust macros by
+@code{\\DeclareRobustCommand}.  This package defines @code{\\LetLtxMacro}
+that also takes care of the involved internal macros.")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-latex-listings
   (package
     (name "texlive-latex-listings")
@@ -4912,7 +5386,7 @@ footnotes with symbols rather than numbers.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1fbrhqj22vzakn30j71fc41l8nliqbv1dmxm0zlwi2qjjbq6fwav"))))
+                "082zri3gp8s6p2difhk1pbix2vzmvsf6fmld2z78v35xwk3fiya0"))))
     (build-system texlive-build-system)
     (arguments
      '(#:tex-directory "latex/listings"
@@ -4965,6 +5439,25 @@ transliterate semitic languages; patches to make (La)TeX formulae embeddable
 in SGML; use maths minus in text as appropriate; simple Young tableaux.")
     (license license:gpl2)))
 
+(define-public texlive-latex-kvoptions
+  (package
+    (inherit (simple-texlive-package
+              "texlive-latex-kvoptions"
+              (list "/doc/latex/kvoptions/"
+                    "/tex/latex/kvoptions/")
+              (base32
+               "02i4n2n3j4lg68d3nam08m63kb4irc99wfhyc2z51r02lm1wwmvw")
+              #:trivial? #t))
+    (propagated-inputs
+     `(("texlive-generic-kvsetkeys" ,texlive-generic-kvsetkeys)
+       ("texlive-generic-ltxcmds" ,texlive-generic-ltxcmds)))
+    (home-page "https://www.ctan.org/pkg/kvoptions")
+    (synopsis "Key/value format for package options")
+    (description
+     "This package provides facilities for using key-value format in
+package options.")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-fonts-ec
   (package
     (name "texlive-fonts-ec")
@@ -4992,7 +5485,7 @@ in SGML; use maths minus in text as appropriate; simple Young tableaux.")
          (delete 'configure)
          (replace 'build
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((mf (assoc-ref inputs "texlive-metafont-base")))
+             (let ((mf (assoc-ref inputs "texlive-metafont")))
                ;; Tell mf where to find mf.base
                (setenv "MFBASES" (string-append mf "/share/texmf-dist/web2c"))
                ;; Tell mf where to look for source files
@@ -5027,7 +5520,7 @@ in SGML; use maths minus in text as appropriate; simple Young tableaux.")
                #t))))))
     (native-inputs
      `(("texlive-bin" ,texlive-bin)
-       ("texlive-metafont-base" ,texlive-metafont-base)
+       ("texlive-metafont" ,texlive-metafont)
        ("texlive-cm" ,texlive-cm)))
     (home-page "https://www.ctan.org/pkg/ec")
     (synopsis "Computer modern fonts in T1 and TS1 encodings")
@@ -5085,7 +5578,7 @@ via the CM-super, Latin Modern and (in a restricted way) CM-LGC font sets.")
                     "/fonts/type1/public/inconsolata/"
                     "/tex/latex/inconsolata/")
               (base32
-               "1a77w26m4c4j0202s1qkikz7ha6cxlv8zxhzi9s3l0x1l2pl7cr2")
+               "19lvma52vk7x8d7j4s9ymjwm3w2k08860fh6dkzn76scgpdm4wlb")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/inconsolata")
     (synopsis "Monospaced font with support files for use with TeX")
@@ -5209,7 +5702,7 @@ Adobe's basic set.")
          (delete 'configure)
          (replace 'build
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((mf (assoc-ref inputs "texlive-metafont-base")))
+             (let ((mf (assoc-ref inputs "texlive-metafont")))
                ;; Tell mf where to find mf.base
                (setenv "MFBASES" (string-append mf "/share/texmf-dist/web2c"))
                ;; Tell mf where to look for source files
@@ -5244,7 +5737,7 @@ Adobe's basic set.")
                #t))))))
     (native-inputs
      `(("texlive-bin" ,texlive-bin)
-       ("texlive-metafont-base" ,texlive-metafont-base)
+       ("texlive-metafont" ,texlive-metafont)
        ("texlive-cm" ,texlive-cm)))
     (home-page "https://www.ctan.org/pkg/rsfs")
     (synopsis "Ralph Smith's Formal Script font")
@@ -5267,7 +5760,7 @@ one of the packages @code{calrsfs} and @code{mathrsfs}.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0y2y08kr3w6asm9lblj9yywqmhaal36fq71zzcbfsc7cvwf641q7"))))
+                "12f7pbhiav4iz3rra5vq85v9f14h8j1ybi42kvnkzgjsay87p7gf"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/eso-pic"))
     (home-page "https://www.ctan.org/pkg/eso-pic")
@@ -5329,7 +5822,7 @@ splines, and filled circles and ellipses.  The package uses @code{tpic}
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1vm9xp67hzif0pqab4r3ialf0cyhi0fa4p8kxgp1ymcf85pqip14"))))
+                "1j8svflnx9w897mdavyf1f0n256wh4bbclrhv5vx7b501gmlbp7d"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -5361,7 +5854,7 @@ in the form @code{key=value} are available, for example:
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "07vbcp6avdwldr870cwf65av2s9lfyzcpp8gpld53yw6lcxgaipj"))))
+                "1kak9i6nwz6vc4xjj6lbvkb69s49pis6qynjzvsjraxbdw28y2dq"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/multirow"))
     (home-page "https://www.ctan.org/pkg/multirow")
@@ -5386,7 +5879,7 @@ entry at the \"natural\" width of its text.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1pr6ym3ad7x14ng7gmhsmywh3685d2cnm5qgyrqbigng2r6fcc1k"))))
+                "1ygsr0rsdabj61zask3346xrwiphz5i6f1nfb9k4d3234psh09kb"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -5422,7 +5915,7 @@ positions; a grid for orientation is available.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0j1fhm1m9k6rz80lmch3x44g20y9nm4abaaf8czb0q8hzwlx5aq5"))))
+                "1zll8jci8lsd7y44j567akf6y8fp2p7qq23rs527zhr0br9mn3sh"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -5452,7 +5945,7 @@ designed class) helps alleviate this untidiness.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0s4izcah7im67889qz4d26pcfpasmm35sj1rw4ragkkdk3rlbbbd"))))
+                "140kl8r7g2ak2frjn5pmwiwibfynyfwp897r9vk8pypmn390lzr2"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/pdfpages"))
     (home-page "https://www.ctan.org/pkg/pdfpages")
@@ -5466,38 +5959,48 @@ package supports pdfTeX (pdfLaTeX) and VTeX.  With VTeX it is even possible to
 use this package to insert PostScript files, in addition to PDF files.")
     (license license:lppl1.3+)))
 
-(define-public texlive-fonts-stmaryrd
-  (package
-    (name "texlive-fonts-stmaryrd")
-    (version (number->string %texlive-revision))
-    (source (origin
-              (method svn-fetch)
-              (uri (texlive-ref "fonts" "stmaryrd"))
-              (file-name (string-append name "-" version "-checkout"))
-              (sha256
-               (base32
-                "08pn4ca3vl6qm9l3wm5h5iyjsrg411kkm1yana329xwg2j14s9n6"))))
-    (build-system texlive-build-system)
-    (arguments
-     '(#:tex-directory "latex/stmaryrd"
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'configure 'patch-ins
-           (lambda _
-             (substitute* "stmaryrd.ins"
-               (("^%% LaTeX2e.*") "\\input docstrip\n")
-               (("fontdef\\}\\}" line)
-                (string-append line "\n\\endbatchfile")))
-             #t)))))
-    (home-page "https://www.ctan.org/pkg/stmaryrd")
-    (synopsis "St Mary Road symbols for theoretical computer science")
-    (description
-     "The fonts were originally distributed as Metafont sources only, but
+(define-public texlive-stmaryrd
+  (let ((template (simple-texlive-package
+                   "texlive-stmaryrd"
+                   (list "/fonts/afm/public/stmaryrd/"
+                         "/fonts/map/dvips/stmaryrd/"
+                         "/fonts/source/public/stmaryrd/"
+                         "/fonts/tfm/public/stmaryrd/"
+                         "/fonts/type1/public/stmaryrd/"
+                         "/source/fonts/stmaryrd/"
+                         "/doc/fonts/stmaryrd/")
+                   (base32
+                    "0yn0yl6x1z9ab5gb56lhvkqabd2agz3ggxifwxkiysrj5780j29z"))))
+    (package
+      (inherit template)
+      (arguments (substitute-keyword-arguments (package-arguments template)
+                   ((#:tex-directory _ #t)
+                    "latex/stmaryrd")
+                   ((#:phases phases)
+                    `(modify-phases ,phases
+                       (add-after 'unpack 'chdir
+                         (lambda _
+                           (chdir "source/fonts/stmaryrd")
+                           #t))
+                       (add-after 'chdir 'patch-ins
+                         (lambda _
+                           (substitute* "stmaryrd.ins"
+                             (("^%% LaTeX2e.*") "\\input docstrip\n")
+                             (("fontdef\\}\\}" line)
+                              (string-append line "\n\\endbatchfile")))
+                           #t))))))
+      (home-page "https://www.ctan.org/pkg/stmaryrd")
+      (synopsis "St Mary Road symbols for theoretical computer science")
+      (description
+       "The fonts were originally distributed as Metafont sources only, but
 Adobe Type 1 versions are also now available.  Macro support is provided for
 use under LaTeX; the package supports the @code{only} option (provided by the
 @code{somedefs} package) to restrict what is loaded, for those who don't need
 the whole font.")
-    (license license:lppl)))
+      (license license:lppl))))
+
+(define-public texlive-fonts-stmaryrd
+  (deprecated-package "texlive-fonts-stmaryrd" texlive-stmaryrd))
 
 (define-public texlive-latex-subfigure
   (package
@@ -5673,12 +6176,10 @@ of ink traps which typify the Kurier font.")
               "texlive-jknappen"
               (list "/fonts/source/jknappen/"
                     "/fonts/tfm/jknappen/"
-                    "/fonts/source/jknappen/"
-                    "/fonts/tfm/jknappen/"
                     "/tex4ht/ht-fonts/alias/jknappen/"
                     "/tex4ht/ht-fonts/unicode/jknappen/")
               (base32
-               "1v5wk5il41bddzr81h5636h3cjz0w1qann5g9garsb7qfch9fhws")
+               "0xvy3c845jc7iw1h9rcm1r2yvm1ni1sm9r9k9j2cfc82xy43rwij")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/jknappen")
     (synopsis "Miscellaneous packages by Jörg Knappen")
@@ -5717,6 +6218,90 @@ Simple Young tableaux.
 @end table")
     (license license:gpl2)))                    ;per the 00readme_txt file.
 
+(define-public texlive-jadetex
+  (let ((template (simple-texlive-package
+                   "texlive-jadetex"
+                   (list "/doc/man/man1/jadetex.1"
+                         "/doc/man/man1/jadetex.man1.pdf"
+                         "/doc/man/man1/pdfjadetex.1"
+                         "/doc/man/man1/pdfjadetex.man1.pdf"
+                         "/source/jadetex/base/"
+                         ;; The following files are not generated from
+                         ;; sources.
+                         "/tex/jadetex/base/jadetex.ini"
+                         "/tex/jadetex/base/pdfjadetex.ini"
+                         "/tex/jadetex/base/uentities.sty")
+                   (base32
+                    "03chyc3vjqgxcj985gy4k0bd0lf1n4a6sgbhc7k84jparjk3hx4i"))))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:tex-directory _ #t)
+          "jadetex/base")
+         ((#:phases phases)
+          `(modify-phases ,phases
+             (add-after 'unpack 'unify-source-directory
+               (lambda _
+                 (chdir "source/jadetex/base")
+                 (for-each (lambda (f)
+                             (copy-file f (basename f)))
+                           (find-files "../../../tex/jadetex/base"))
+                 #t))
+             (add-after 'build 'generate-formats
+               (lambda* (#:key inputs #:allow-other-keys)
+                 (mkdir "web2c")
+                 (for-each (lambda (f)
+                             (symlink f (basename f)))
+                           (find-files "build"))
+                 (invoke "fmtutil-sys" "--byfmt" "jadetex"
+                         "--fmtdir=web2c")
+                 (invoke "fmtutil-sys" "--byfmt" "pdfjadetex"
+                         "--fmtdir=web2c")))
+             (add-after 'install 'install-formats-and-wrappers
+               (lambda* (#:key inputs outputs #:allow-other-keys)
+                 (let* ((out (assoc-ref outputs "out"))
+                        (texlive-bin (assoc-ref inputs "texlive-bin"))
+                        (pdftex (string-append texlive-bin "/bin/pdftex"))
+                        (web2c (string-append out "/share/texmf-dist/web2c")))
+                   (mkdir-p web2c)
+                   (copy-recursively "web2c" web2c)
+                   ;; Create convenience command wrappers.
+                   (mkdir-p (string-append out "/bin"))
+                   (symlink pdftex (string-append out "/bin/jadetex"))
+                   (symlink pdftex (string-append out "/bin/pdfjadetex"))
+                   #t)))))))
+      (propagated-inputs
+       ;; Propagate the texlive-updmap.cfg input used by xmltex, which provides the
+       ;; required fonts for its use.
+       `(("texlive-xmltex" ,texlive-xmltex)
+         ("texlive-kpathsea" ,texlive-kpathsea))) ;for fmtutil.cnf template
+      (native-inputs
+       `(("texlive-cm" ,texlive-cm)     ;for cmex10 and others
+         ("texlive-fonts-latex" ,texlive-fonts-latex) ;for lasy6
+         ;; The t1cmr.fd file of texlive-latex-base refers to the ecrm font,
+         ;; provided by the jknappen package collection.
+         ("texlive-jknappen" ,texlive-jknappen)
+         ("texlive-generic-ulem" ,texlive-generic-ulem)
+         ("texlive-hyperref" ,texlive-hyperref)
+         ("texlive-latex-colortbl" ,texlive-latex-colortbl)
+         ("texlive-latex-fancyhdr" ,texlive-latex-fancyhdr)
+         ("texlive-latex-graphics" ,texlive-latex-graphics) ;for color.sty
+         ("texlive-latex-tools" ,texlive-latex-tools)       ;for array.sty
+         ("texlive-marvosym" ,texlive-marvosym)
+         ("texlive-tex-ini-files" ,texlive-tex-ini-files))) ;for pdftexconfig
+      (home-page "https://www.ctan.org/pkg/jadetex/")
+      (synopsis "TeX macros to produce TeX output using OpenJade")
+      (description "JadeTeX is a companion package to the OpenJade DSSSL
+processor.  OpenJade applies a DSSSL stylesheet to an SGML or XML document.
+The output of this process can be in a number of forms, including a set of
+high level LaTeX macros.  It is the task of the JadeTeX package to transform
+these macros into DVI/PostScript (using the @command{jadetex} command) or
+Portable Document Format (PDF) form (using the @command{pdfjadetex}
+command).")
+      ;; The license text is found at the header of the jadetex.dtx file.
+      (license license:expat))))
+
 (define-public texlive-libertine
   (package
     (inherit (simple-texlive-package
@@ -5732,7 +6317,7 @@ Simple Young tableaux.
 
                     "/tex/latex/libertine/")
               (base32
-               "1v2vimpfi0b08sd79dadrck7wkpa0bphiakwyvhjc3ygq9k5bp8k")
+               "1d5r80isyvs2v3i8pzlhsn7ns6bn8ldkbs82g25widraixlhg6yg")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/libertine")
     (synopsis "Use Linux Libertine and Biolinum fonts with LaTeX")
@@ -5790,7 +6375,7 @@ LGR.  The package doesn't (currently) support mathematics.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "04nmkhqx6jxcxx9a30zbcd5smxi5fd0cbp132bki7fnvhspnhg21"))))
+                "1kw7dvxvdfbf31zw0n8r0g5xak3vcdf25n33fqw93j59zpc5nvbl"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -5841,23 +6426,32 @@ now contains a package @code{fix-cm},f which performs the task of
 @code{ec} fonts.")
     (license license:lppl)))
 
-(define-public texlive-latex-lh
-  (package
-    (name "texlive-latex-lh")
-    (version (number->string %texlive-revision))
-    (source (origin
-              (method svn-fetch)
-              (uri (texlive-ref "latex" "lh"))
-              (file-name (string-append name "-" version "-checkout"))
-              (sha256
-               (base32
-                "00gdiwh3sfhh1iimjhpja7lm7k4vzqzql2irgwnpz94qvh25zwi5"))))
-    (build-system texlive-build-system)
-    (arguments '(#:tex-directory "latex/lh"))
-    (home-page "https://www.ctan.org/pkg/lh")
-    (synopsis "Cyrillic fonts that support LaTeX standard encodings")
-    (description
-     "The LH fonts address the problem of the wide variety of alphabets that
+(define-public texlive-lh
+  (let ((template (simple-texlive-package
+                   "texlive-lh"
+                   (list "/doc/fonts/lh/"
+                         "/source/fonts/lh/"
+                         "/source/latex/lh/"
+                         "/fonts/source/lh/"
+                         "/tex/plain/lh/")
+                   (base32
+                    "0vw75i52asi5sssp8k9r8dy4ihvqbvmbsl3dini3ls8cky15lz37"))))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:tex-directory _ #t)
+          "latex/lh")
+         ((#:build-targets _ '())
+          ''("nfssfox.ins" "lcyfonts.ins" "ot2fonts.ins" "t2ccfonts.ins"))
+         ((#:phases phases)
+          `(modify-phases ,phases
+             (add-after 'unpack 'chdir
+               (lambda _ (chdir "source/latex/lh") #t))))))
+      (home-page "https://www.ctan.org/pkg/lh")
+      (synopsis "Cyrillic fonts that support LaTeX standard encodings")
+      (description
+       "The LH fonts address the problem of the wide variety of alphabets that
 are written with Cyrillic-style characters.  The fonts are the original basis
 of the set of T2* and X2 encodings that are now used when LaTeX users need to
 write in Cyrillic languages.  Macro support in standard LaTeX encodings is
@@ -5866,7 +6460,10 @@ offers support for other (more traditional) encodings.  The fonts, in the
 standard T2* and X2 encodings are available in Adobe Type 1 format, in the
 CM-Super family of fonts.  The package also offers its own LaTeX support for
 OT2 encoded fonts, CM bright shaped fonts and Concrete shaped fonts.")
-    (license license:lppl)))
+      (license license:lppl))))
+
+(define-public texlive-latex-lh
+  (deprecated-package "texlive-latex-lh" texlive-lh))
 
 (define-public texlive-marvosym
   (package
@@ -5908,7 +6505,7 @@ the derived Type 1 font, together with support files for TeX (LaTeX).")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1xyd57c8z1xi0kbqpbad61flcazz68i9ssxrag0gjvci3irxi8xh"))))
+                "140k9dz2g2vj5ypgyqx3px9c1y9a820y8kq139p96lw0yk6839aw"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -5937,7 +6534,7 @@ than the bitmaps Metafont creates.")
               (uri (texlive-ref "latex" "acmart"))
               (sha256
                (base32
-                "18rl67p2zhngskisnhv78mksv8q8q658l6igkswzswldixmkpphq"))
+                "12wxav9r6v7dlfja9myrwz7famgfpcfwd292qzmgg283xgngh9kd"))
               (file-name (string-append name "-" version "-checkout"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/acmart"))
@@ -5991,7 +6588,7 @@ get a narrower “natural” width.")
                     "/tex/plain/wasy/"
                     "/doc/fonts/wasy/")
               (base32
-               "10dxbqgv42niybj65hj6y47x8lsl83m48rgw2v2s50k05wbghwbm")
+               "1swzxgld3lndi5q0q6zkwbw06ndh13fvp04as7zpwyhh646s0hbx")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/wasy")
     (synopsis "Waldi symbol fonts")
@@ -6000,9 +6597,9 @@ in the Metafont and Adobe Type 1 formats.  Support under LaTeX is provided by
 the @code{wasysym} package.")
     (license license:public-domain)))
 
-(define-public texlive-latex-wasysym
+(define-public texlive-wasysym
   (package
-    (name "texlive-latex-wasysym")
+    (name "texlive-wasysym")
     (version (number->string %texlive-revision))
     (source (origin
               (method svn-fetch)
@@ -6010,7 +6607,7 @@ the @code{wasysym} package.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1sgwbfwjjf70g54hh93gsd9jp9nm67w6n74x9d72a56n07jbk5hv"))))
+                "0zxcf0pfqf439cfwl0r5dd93b0v4pbiih36n2pwshdlvnmy0nr50"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/wasysym"))
     (home-page "https://www.ctan.org/pkg/wasysym")
@@ -6022,6 +6619,9 @@ male and female symbols and astronomical symbols, as well as the complete
 implements an easy to use interface for these symbols.")
     (license license:lppl)))
 
+(define-public texlive-latex-wasysym
+  (deprecated-package "texlive-latex-wasysym" texlive-wasysym))
+
 (define-public texlive-latex-wrapfig
   (package
     (name "texlive-latex-wrapfig")
@@ -6106,7 +6706,7 @@ package of that name now exists.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1hpsk4yp08qvbl43kqiv0hhwxv3gcqqxcpahyv6ch2b38pbj4bh6"))))
+                "0hnf821yvki9bzfkz79ns9m1msjp3yvd4dhf3268wrpr1zjx6w8v"))))
     (build-system texlive-build-system)
     (arguments
      '(#:tex-directory "latex/preview"
@@ -6138,7 +6738,7 @@ files.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0jmasg40bk53zdd2jc8nc18jvdai3p2wmamy7hwli8gls4nf25qp"))))
+                "09pd4wynksg1y1ddxnqbhk2dc185zw5nyi794d86n3qx8l014ijy"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/acronym"))
     (home-page "https://www.ctan.org/pkg/acronym")
@@ -6151,49 +6751,24 @@ requires the suffix package, which in turn requires that it runs under
 e-TeX.")
     (license license:lppl1.3+)))
 
-(define-public texlive-generic-pdftex
+(define-public texlive-pdftex
   (package
-    (name "texlive-generic-pdftex")
-    (version (number->string %texlive-revision))
-    (source (origin
-              (method svn-fetch)
-              (uri (svn-reference
-                    (url (string-append "svn://www.tug.org/texlive/tags/"
-                                        %texlive-tag "/Master/texmf-dist/"
-                                        "/tex/generic/pdftex"))
-                    (revision %texlive-revision)))
-              (file-name (string-append name "-" version "-checkout"))
-              (sha256
-               (base32
-                "0k68zmqzs4qvrqxdwsrawbjb14hxqjfamq649azvai0jjxdpkljd"))))
-    (build-system trivial-build-system)
-    (arguments
-     `(#:modules ((guix build utils))
-       #:builder
-       (begin
-         (use-modules (guix build utils))
-         (let ((target (string-append (assoc-ref %outputs "out")
-                                      "/share/texmf-dist/tex/generic/pdftex"))
-               (target-map (string-append (assoc-ref %outputs "out")
-                                      "/share/texmf-dist/fonts/map/pdftex")))
-           (mkdir-p target)
-           (copy-recursively (assoc-ref %build-inputs "source") target)
-           (mkdir-p target-map)
-           (copy-recursively (assoc-ref %build-inputs "pdftex-map") target-map)
-           #t))))
-    (native-inputs
-     `(("pdftex-map"
-        ,(origin
-           (method svn-fetch)
-           (uri (svn-reference
-                 (url (string-append "svn://www.tug.org/texlive/tags/"
-                                     %texlive-tag "/Master/texmf-dist/"
-                                     "/fonts/map/pdftex"))
-                 (revision %texlive-revision)))
-           (file-name (string-append name "-map-" version "-checkout"))
-           (sha256
-            (base32
-             "03rfif2631pgd8g1ar4xblcdh078kky7fvw3kfsj5a47rxxgicp2"))))))
+    (inherit (simple-texlive-package
+              "texlive-pdftex"
+              (list "/doc/pdftex/"
+                    "/doc/man/man1/pdfetex.1"
+                    "/doc/man/man1/pdftex.1"
+
+                    "/fonts/map/dvips/dummy-space/dummy-space.map"
+                    "/fonts/tfm/public/pdftex/dummy-space.tfm"
+                    "/fonts/type1/public/pdftex/dummy-space.pfb"
+                    "/scripts/simpdftex/simpdftex"
+
+                    "/tex/generic/config/pdftex-dvi.tex"
+                    "/tex/generic/pdftex/")
+              (base32
+               "1wx928rqsv0x1a8vc7aq49w3nglr4bmlhl822slqglymfxrmb91b")
+              #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/pdftex")
     (synopsis "TeX extension for direct creation of PDF")
     (description
@@ -6201,17 +6776,20 @@ e-TeX.")
 directly generate PDF documents instead of DVI.")
     (license license:gpl2+)))
 
+(define-public texlive-generic-pdftex
+  (deprecated-package "texlive-generic-pdftex" texlive-pdftex))
+
 (define texlive-texmf
   (package
    (name "texlive-texmf")
-   (version "20190410")
+   (version "20210325")
    (source texlive-texmf-src)
    (build-system gnu-build-system)
    (inputs
     `(("texlive-bin" ,texlive-bin)
       ("lua" ,lua)
       ("perl" ,perl)
-      ("python" ,python-2) ; incompatible with Python 3 (print syntax)
+      ("python" ,python)
       ("ruby" ,ruby)
       ("tcsh" ,tcsh)))
    (arguments
@@ -6281,10 +6859,10 @@ This package contains the complete tree of texmf-dist data.")
 (define-public texlive
   (package
    (name "texlive")
-   (version "20190410")
+   (version "20210325")
    (source #f)
    (build-system trivial-build-system)
-   (inputs `(("bash" ,bash) ; for wrap-program
+   (inputs `(("bash" ,bash-minimal)     ;for wrap-program
              ("texlive-bin" ,texlive-bin)
              ("texlive-texmf" ,texlive-texmf)))
    (native-search-paths
@@ -6344,7 +6922,7 @@ This package contains the complete TeX Live distribution.")
 (define-public perl-text-bibtex
   (package
     (name "perl-text-bibtex")
-    (version "0.85")
+    (version "0.88")
     (source
      (origin
        (method url-fetch)
@@ -6352,7 +6930,7 @@ This package contains the complete TeX Live distribution.")
                            version ".tar.gz"))
        (sha256
         (base32
-         "036kxgbn1jf70pfm2lmjlzjwnhbkd888fp5lyvmkjpdd15gla18h"))))
+         "0b7lmjvfmypps1nw6nsdikgaakm0n0g4186glaqazg5xd1p5h55h"))))
     (build-system perl-build-system)
     (arguments
      `(#:phases
@@ -6389,20 +6967,16 @@ values (strings, macros, or numbers) pasted together.")
     ;; checking the Biber/BibLaTeX compatibility matrix in the BibLaTeX manual
     ;; at <https://ctan.org/pkg/biblatex>.
     (name "biber")
-    (version "2.12")
+    (version "2.16")
     (source (origin
               (method git-fetch)
               (uri (git-reference
                     (url "https://github.com/plk/biber/")
                     (commit (string-append "v" version))))
               (file-name (git-file-name name version))
-              ;; TODO: Patch awaiting inclusion upstream (see:
-              ;; https://github.com/plk/biber/issues/239).
-              (patches (search-patches "biber-fix-encoding-write.patch"
-                                       "biber-sortinithash.patch"))
               (sha256
                (base32
-                "1g1hi6zvf2hmrjly1sidjaxy5440gfqm4p7p3n7kayshnjsmlskx"))))
+                "0586q8y1f2k23mvb02ccm3qsb35cwskafksixsjaih7a7xcf5gxx"))))
     (build-system perl-build-system)
     (arguments
      `(#:phases
@@ -6425,6 +6999,7 @@ values (strings, macros, or numbers) pasted together.")
        ("perl-datetime-format-builder" ,perl-datetime-format-builder)
        ("perl-datetime-calendar-julian" ,perl-datetime-calendar-julian)
        ("perl-file-slurper" ,perl-file-slurper)
+       ("perl-io-string" ,perl-io-string)
        ("perl-ipc-cmd" ,perl-ipc-cmd)
        ("perl-ipc-run3" ,perl-ipc-run3)
        ("perl-list-allutils" ,perl-list-allutils)
@@ -6432,10 +7007,8 @@ values (strings, macros, or numbers) pasted together.")
        ("perl-mozilla-ca" ,perl-mozilla-ca)
        ("perl-regexp-common" ,perl-regexp-common)
        ("perl-log-log4perl" ,perl-log-log4perl)
-       ;; We cannot use perl-unicode-collate here, because otherwise the
-       ;; hardcoded hashes in the tests would differ.  See
-       ;; https://mail-archive.com/debian-bugs-dist@lists.debian.org/msg1469249.html
-       ;;("perl-unicode-collate" ,perl-unicode-collate)
+       ("perl-parse-recdescent" ,perl-parse-recdescent)
+       ("perl-unicode-collate" ,perl-unicode-collate)
        ("perl-unicode-normalize" ,perl-unicode-normalize)
        ("perl-unicode-linebreak" ,perl-unicode-linebreak)
        ("perl-encode-eucjpascii" ,perl-encode-eucjpascii)
@@ -6576,12 +7149,12 @@ develop documents with LaTeX, in a single application.")
              (delete-file "book.pdf")
              #t)))))
     (native-inputs
-     `(("texlive" ,(texlive-union (list texlive-amsfonts
+     `(("texlive" ,(texlive-updmap.cfg (list texlive-amsfonts
                                         texlive-fonts-adobe-palatino
                                         texlive-fonts-adobe-zapfding
-                                        texlive-fonts-knuth-lib
+                                        texlive-knuth-lib
                                         texlive-fonts-mflogo-font
-                                        texlive-generic-pdftex)))
+                                        texlive-pdftex)))
        ("automake" ,automake)))
     (home-page "https://www.gnu.org/software/teximpatient/")
     (synopsis "Book on TeX, plain TeX and Eplain")
@@ -6646,7 +7219,7 @@ and Karl Berry.")
        ("qtsvg" ,qtsvg)
        ("zlib" ,zlib)))
     (propagated-inputs
-     `(("texlive" ,(texlive-union (list texlive-fonts-ec)))))
+     `(("texlive" ,(texlive-updmap.cfg (list texlive-fonts-ec)))))
     (native-inputs
      `(("python" ,python)
        ("pkg-config" ,pkg-config)))
@@ -6673,7 +7246,7 @@ required: automatic sectioning and pagination, spell checking and so forth.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0s86v2b6b1vky1svmmn8pn0l2gz3v280mvjbr2d9l2sjyarlgz9w"))))
+                "0a1v70k6231323y1lazfda1y9568w8hn7c8jhc7rblkhdfv3slw7"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -6713,7 +7286,7 @@ specification.  It replaces the now obsolete @code{movie15} package.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1yhp51w8yr10c10pc9196q7hlw80brzqinnqbjw81d0sf2p0llc5"))))
+                "1mrz1mj59m27bfya52vi4lm84ifisaf30pmf8id1biqwcq4jyynh"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -6754,7 +7327,7 @@ It also ensures compatibility with the @code{media9} and @code{animate} packages
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0m4wx3yjb5al1qsv995z8fii8xxy96mcfihbnlx43lpgayiwz35s"))))
+                "04ww5abfm7dx81d21yr2gwy9jswaalnfm2384xp4cyx7srd9spfv"))))
     (build-system texlive-build-system)
     (arguments
      '(#:tex-directory "latex/ms"
@@ -6877,7 +7450,7 @@ is preferred in many parts of the world, as distinct from that which is used in
        (file-name (string-append name "-" version "-checkout"))
        (sha256
         (base32
-         "1rzdniqq9zk39w8ch8ylx3ywh2mj87s4ivchrsk2b8nx06jyn797"))))
+         "161ka7sckiakcr1fgydxpc580sr16vp4sp3avjl2v9jn1pd2pwp0"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -6914,7 +7487,7 @@ striking out (line through words) and crossing out (/// over words).")
        (file-name (string-append name "-" version "-checkout"))
        (sha256
         (base32
-         "1dscrgwyr71vgx35mzb316xl669arzagfgq50fdv3nxga63959b3"))))
+         "1jk10rxz5f8vh46am11b40hxhhikk67h9jr3z877q5qc8kwppgza"))))
     (build-system trivial-build-system)
     (native-inputs
      `(("texlive-latex-pgf-generic"
@@ -6928,7 +7501,7 @@ striking out (line through words) and crossing out (/// over words).")
            (file-name (string-append "texlive-latex-pgf-generic" version "-checkout"))
            (sha256
             (base32
-             "0hk5x2j15n4pps279cmkbjl1dvhasq3mbhna5xdvp2qgh635ahks"))))))
+             "05zdq7y3am109m5534ahqqp9x5iar3ha68v1r4zkrdly2mijxz2j"))))))
     (propagated-inputs
      `(("texlive-latex-xcolor" ,texlive-latex-xcolor)))
     (arguments
@@ -6972,7 +7545,7 @@ produce either PostScript or PDF output.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1vz9zg7s5w52xr323zgglzprfrvba2zvyzf6b8vrdf4wdghlpv4z"))))
+                "1m6i8162r6ka19q517llrf0lax80rrsq564qirwk1chv5dqsmnfi"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -7017,6 +7590,165 @@ refers to the version of scrbook, scrreprt, scrartcl, scrlttr2 and
 typearea (which are the main parts of the bundle).")
     (license license:lppl1.3+)))
 
+(define-public texlive-generic-atbegshi
+  (package
+    (inherit (simple-texlive-package
+              "texlive-generic-atbegshi"
+              '("/doc/latex/atbegshi/"
+                "/tex/generic/atbegshi/")
+              (base32
+               "184fr5kd3wl44ix63lwb3ll7dhiikkyw1czbnzrl4am4rx0zh4d8")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/atbegshi")
+    (synopsis "Execute commands at @code{\\shipout} time")
+    (description
+     "This package is a modern reimplementation of package @code{everyshi},
+providing various commands to be executed before a @code{\\shipout} command.
+It makes use of e-TeX’s facilities if they are available.  The package may
+be used either with LaTeX or with plain TeX.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-generic-bigintcalc
+  (package
+    (inherit (simple-texlive-package
+              "texlive-generic-bigintcalc"
+              '("/doc/latex/bigintcalc/README.md"
+                "/tex/generic/bigintcalc/")
+              (base32
+               "19grk4p1dh566hgpzhnjyjnrw57hpjijcpr7ci401n9jszcc1xkz")
+              #:trivial? #t))
+    (propagated-inputs
+     `(("texlive-latex-pdftexcmds" ,texlive-latex-pdftexcmds)))
+    (home-page "https://www.ctan.org/pkg/bigintcalc")
+    (synopsis "Integer calculations on very large numbers")
+    (description
+     "This package provides expandable arithmetic operations with big
+integers that can exceed TeX's number limits.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-generic-bitset
+  (package
+    (inherit (simple-texlive-package
+              "texlive-generic-bitset"
+              '("/doc/latex/bitset/README.md"
+                "/tex/generic/bitset/")
+              (base32
+               "0inj6qpzizvsbxdfsaijnl4iq976kyrnchnm3gc1kc2w389zrn1l")
+              #:trivial? #t))
+    (propagated-inputs
+     `(("texlive-generic-infwarerr" ,texlive-generic-infwarerr)
+       ("texlive-generic-intcalc" ,texlive-generic-intcalc)
+       ("texlive-generic-bigintcalc" ,texlive-generic-bigintcalc)))
+    (home-page "https://www.ctan.org/pkg/bitset")
+    (synopsis "Handle bit-vector datatype")
+    (description
+     "This package defines and implements the data type bit set, a vector
+of bits.  The size of the vector may grow dynamically.  Individual bits
+can be manipulated.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-generic-etexcmds
+  (package
+    (inherit (simple-texlive-package
+              "texlive-generic-etexcmds"
+              '("/doc/latex/etexcmds/README.md"
+                "/tex/generic/etexcmds/")
+              (base32
+               "11y6pnlq13bp0ybi7c82g8ds8085zv1zaslgqv3dzhgi3dklpc0c")
+              #:trivial? #t))
+    (propagated-inputs
+     `(("texlive-generic-infwarerr" ,texlive-generic-infwarerr)
+       ("texlive-generic-iftex" ,texlive-generic-iftex)))
+    (home-page "https://www.ctan.org/pkg/etexcmds")
+    (synopsis "Avoid name clashes with e-TeX commands")
+    (description
+     "New primitive commands are introduced in e-TeX; sometimes the names
+collide with existing macros.  This package solves the name clashes by
+adding a prefix to e-TeX’s commands.  For example, ε-TeX’s
+@code{\\unexpanded} is provided as @code{\\etex@@unexpanded}.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-generic-gettitlestring
+  (package
+    (inherit (simple-texlive-package
+              "texlive-generic-gettitlestring"
+              '("/doc/latex/gettitlestring/"
+                "/tex/generic/gettitlestring/")
+              (base32
+               "1p4hg9mac03rzvj9dw0ws3zdh55fy1ns954f912algw9f2aq4xgp")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/gettitlestring")
+    (synopsis "Clean up title references")
+    (description
+     "This package provides commands for cleaning up the title string
+(such as removing @code{\\label} commands) for packages that typeset such
+strings.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-generic-infwarerr
+  (package
+    (inherit (simple-texlive-package
+              "texlive-generic-infwarerr"
+              '("/tex/generic/infwarerr/")
+              (base32
+               "19nlrbfmqbkjrrx9x75s9nd6crg1lzimb2fr3hfblaivj6lx8p4r")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/infwarerr")
+    (synopsis "Information/warning/error macros")
+    (description
+     "This package provides a complete set of macros for information,
+warning and error messages.  Under LaTeX, the commands are wrappers for
+the corresponding LaTeX commands; under Plain TeX they are available as
+complete implementations.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-generic-intcalc
+  (package
+    (inherit (simple-texlive-package
+              "texlive-generic-intcalc"
+              '("/tex/generic/intcalc/")
+              (base32
+               "0llrnayqwdqxi91yh7panbbiljina3bynv2hxhi6sssaw3pyd92l")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/intcalc")
+    (synopsis "Expandable arithmetic operations with integers")
+    (description
+     "This package provides expandable arithmetic operations with integers,
+using the e-TeX extension @code{\\numexpr} if it is available.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-generic-kvdefinekeys
+  (package
+    (inherit (simple-texlive-package
+              "texlive-generic-kvdefinekeys"
+              '("/tex/generic/kvdefinekeys/")
+              (base32
+               "12nn74skhwiszbdhawqds31caz6d59a5pjmwar0r8lmk4f1jr3xh")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/kvdefinekeys")
+    (synopsis "Define keys for use in the @code{kvsetkeys} package")
+    (description
+     "This package provides the @code{\\kv@@define@@key} (analogous to
+keyval’s @code{\\define@@key}, to define keys for use by @code{kvsetkeys}.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-generic-kvsetkeys
+  (package
+    (inherit (simple-texlive-package
+              "texlive-generic-kvsetkeys"
+              '("/tex/generic/kvsetkeys/")
+              (base32
+               "149vpmv4vms269dzq4sghlngg380sasvxnb3sx9rfs7d9j0finvi")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/kvsetkeys")
+    (synopsis "Key value parser with default handler support")
+    (description
+     "This package provides @code{\\kvsetkeys}, a variant of @code{\\setkeys}
+from the @code{keyval} package.  Users can specify a handler that deals with
+unknown options.  Active commas and equal signs may be used, and only one
+level of curly braces are removed from the values.")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-generic-listofitems
   (package
     (name "texlive-generic-listofitems")
@@ -7031,7 +7763,7 @@ typearea (which are the main parts of the bundle).")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "1x4wnpca97rnbvvg6wjmbkxxvnfva274q9ahzx746b435q93z3i1"))))
+                "1wnbnfrhi6hgqa78jsw6hljzi03i5x99mlr5n2419hgws52hk67y"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -7051,6 +7783,58 @@ the parsing character has been selected by the user, and to access any of
 these items with a simple syntax.")
     (license license:lppl1.3c+)))
 
+(define-public texlive-generic-ltxcmds
+  (package
+    (inherit (simple-texlive-package
+              "texlive-generic-ltxcmds"
+              '("/tex/generic/ltxcmds/")
+              (base32
+               "1lr77yai2qivlx26s5094czpfxmg96bhxps5wbm8xn7cpsw0zbd9")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/ltxcmds")
+    (synopsis "LaTeX kernel commands extracted for general use")
+    (description
+     "This package exports some utility macros from the LaTeX kernel into
+a separate namespace and also makes them available for other formats such
+as plain TeX.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-generic-pdfescape
+  (package
+    (inherit (simple-texlive-package
+              "texlive-generic-pdfescape"
+              '("/tex/generic/pdfescape/")
+              (base32
+               "1vbdjmm9bi9ngzz2z1b8jnf6nzf9xsaj5pvyswg13y4dr00mnz6n")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/pdfescape")
+    (synopsis "pdfTeX's escape features for plain TeX")
+    (description
+     "This package implements pdfTeX's escape features (@code{\\pdfescapehex},
+@code{\\pdfunescapehex}, @code{\\pdfescapename}, @code{\\pdfescapestring})
+using TeX or e-TeX.")
+    (license license:lppl1.3c+)))
+
+(define-public texlive-generic-uniquecounter
+  (package
+    (inherit (simple-texlive-package
+              "texlive-generic-uniquecounter"
+              '("/doc/latex/uniquecounter/"
+                "/tex/generic/uniquecounter/")
+              (base32
+               "1bjh8vwiqlkmjqndnh4xp116524x4m3hdcyq2s231jiqy8il8dcc")
+              #:trivial? #t))
+    (propagated-inputs
+     `(("texlive-generic-bigintcalc" ,texlive-generic-bigintcalc)
+       ("texlive-generic-infwarerr" ,texlive-generic-infwarerr)))
+    (home-page "https://www.ctan.org/pkg/uniquecounter")
+    (synopsis "Unlimited unique counter")
+    (description
+     "This package provides a kind of counter that provides unique number
+values.  Several counters can be created with different names.  The numeric
+values are not limited.")
+    (license license:lppl1.3c+)))
+
 (define-public texlive-latex-readarray
   (package
     (name "texlive-latex-readarray")
@@ -7220,7 +8004,7 @@ AMS-LaTeX, AMS-TeX, and plain TeX).  The distribution includes Michael Barr's
        (file-name (string-append name "-" version "-checkout"))
        (sha256
         (base32
-         "1wijqq605cbhn2bdaryby3xpkwmnk9ixcrjn5zwlfrxbgfblzfmz"))))
+         "0fr0s3jhrvplddb42if570dxllz54fa0pf4d2am27h8m385nghbf"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -7279,7 +8063,7 @@ Support for use with LaTeX is available in @code{freenfss}, part of
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0d7d74giz5knvj4rj6mbzd6c05mwg9jrxab86jxdqbc3jy7cl4kz"))))
+                "1xprxdy0a5bwhyiyzdffq0q0dd4ijhra8hs39djdjd32r1mk3n8a"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -7298,6 +8082,52 @@ supports advanced interactive documents.  See the ConTeXt garden for a wealth
 of support information.")
     (license license:gpl2+)))
 
+(define-public texlive-context
+  (package
+    (inherit (simple-texlive-package
+              "texlive-context"
+              (list "/doc/context/"
+                    ;; XXX Omitting /doc/man/man1/*.pdf
+                    "/bibtex/bst/context/mkii/"
+                    "/context/data/"
+
+                    "/fonts/afm/hoekwater/context/contnav.afm"
+                    "/fonts/cid/fontforge/Adobe-CNS1-4.cidmap"
+                    "/fonts/cid/fontforge/Adobe-GB1-4.cidmap"
+                    "/fonts/cid/fontforge/Adobe-Identity-0.cidmap"
+                    "/fonts/cid/fontforge/Adobe-Japan1-5.cidmap"
+                    "/fonts/cid/fontforge/Adobe-Japan1-6.cidmap"
+                    "/fonts/cid/fontforge/Adobe-Japan2-0.cidmap"
+                    "/fonts/cid/fontforge/Adobe-Korea1-2.cidmap"
+                    "/fonts/enc/dvips/context/"
+                    "/fonts/map/dvips/context/"
+                    "/fonts/map/luatex/context/"
+                    "/fonts/map/pdftex/context/"
+                    "/fonts/misc/xetex/fontmapping/context/"
+                    "/fonts/tfm/hoekwater/context/contnav.tfm"
+                    "/fonts/type1/hoekwater/context/"
+
+                    "/metapost/context/"
+                    "/scripts/context/"
+                    "/tex/context/"
+
+                    "/tex/generic/context/luatex/"
+                    "/tex/generic/context/ppchtex/"
+                    "/tex/latex/context/")
+              (base32
+               "0qrc9278h50c9k94jdjlbcbjnsmidxf7pqh10azqf6sgzifx3d7s")
+              #:trivial? #t))
+    (home-page "https://www.ctan.org/pkg/context")
+    (synopsis "ConTeXt macro package")
+    (description "ConTeXt is a full featured, parameter driven macro package,
+which fully supports advanced interactive documents.  See the ConTeXt garden
+for a wealth of support information.")
+    ;; The GPL applies to all code; alternatively, the LaTeX license may be used.
+    ;; The CC-BY-SA license applies to all documentation.
+    (license (list license:lppl1.3c+
+                   license:gpl2+
+                   license:cc-by-sa4.0))))
+
 (define-public texlive-beamer
   (package
     (inherit (simple-texlive-package
@@ -7305,11 +8135,11 @@ of support information.")
               (list "/doc/latex/beamer/"
                     "/tex/latex/beamer/")
               (base32
-               "1fqzbkmw2kfxihab8j4dadc3v68xap6v2ghpp2064fna47xlwy1c")
+               "091n27n4l3iac911bvmpp735ffryyzaq46mkclgn3q9jsvc4ngiv")
               #:trivial? #t))
     (propagated-inputs
      `(("texlive-latex-hyperref" ,texlive-latex-hyperref)
-       ("texlive-latex-oberdiek" ,texlive-latex-oberdiek)
+       ("texlive-oberdiek" ,texlive-oberdiek)
        ("texlive-latex-etoolbox" ,texlive-latex-etoolbox)
        ("texlive-latex-pgf" ,texlive-latex-pgf)))
     (home-page "https://www.ctan.org/pkg/beamer")
@@ -7353,58 +8183,45 @@ the metadata is stored in an XML file, and this XML stream is then embedded in
 the file to which it applies.")
     (license license:gpl3+)))
 
-(define-public texlive-latex-pdfx
-  (package
-    (name "texlive-latex-pdfx")
-    (version (number->string %texlive-revision))
-    (source
-     (origin
-       (method svn-fetch)
-       (uri (texlive-ref "latex" "pdfx"))
-       (file-name (string-append name "-" version "-checkout"))
-       (sha256
-        (base32
-         "18294h0cr05fs424m3x6aq24z5hf5zmiflalkj4kvpmsyyqqsj74"))))
-    (build-system texlive-build-system)
-    (arguments
-     '(#:tex-directory "latex/pdfx"
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'fix-encoding
-           (lambda _
-             (substitute* "pdfx.dtx"
-               (("    .+umaczy") "umaczy"))
-             #t))
-         (add-before 'install 'install-tex-files
-           (lambda* (#:key inputs outputs #:allow-other-keys)
-             (let ((target (string-append (assoc-ref outputs "out")
-                                          "/share/texmf-dist/tex/latex/pdfx")))
-               (mkdir-p target)
-               (copy-recursively (assoc-ref inputs "texlive-tex-pdfx") target)
-               ;; Install the generated version in the "install" phase.
-               (delete-file (string-append target "/pdfx.sty"))
-               #t))))))
-    (propagated-inputs
-     `(("texlive-generic-pdftex" ,texlive-generic-pdftex)))
-    (native-inputs
-     `(("texlive-tex-pdfx"
-        ,(origin
-           (method svn-fetch)
-           (uri (svn-reference
-                 (url (string-append "svn://www.tug.org/texlive/tags/"
-                                     %texlive-tag "/Master/texmf-dist/"
-                                     "/tex/latex/pdfx"))
-                 (revision %texlive-revision)))
-           (file-name (string-append "texlive-tex-latex-pdfx-" version "-checkout"))
-           (sha256
-            (base32
-             "171ffvpkj2fab4ljcxv3l6l5c8ga8zavdhmhfq07id8zyyr619ip"))))))
-    (home-page "https://www.ctan.org/pkg/pdfx")
-    (synopsis "PDF/X and PDF/A support for pdfTeX, LuaTeX and XeTeX")
-    (description
-     "This package helps LaTeX users to create PDF/X, PDF/A and other
+(define-public texlive-pdfx
+  (let ((template (simple-texlive-package
+                   "texlive-pdfx"
+                   (list "/doc/latex/pdfx/"
+                         "/source/latex/pdfx/"
+                         "/tex/latex/pdfx/")
+                   (base32
+                    "1z4j4d92k2fjmf8jfap4zn7ij97d9rz2jcs9aslcac07ag4x5bdp"))))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:tex-directory _ #t)
+          "latex/pdfx")
+         ((#:phases phases)
+          `(modify-phases ,phases
+             (add-after 'unpack 'delete-generated-file
+               (lambda _
+                 ;; Generate this file from sources
+                 (delete-file "tex/latex/pdfx/pdfx.sty")
+                 #t))
+             (add-after 'delete-generated-file 'chdir
+               (lambda _ (chdir "source/latex/pdfx") #t))
+             (add-after 'chdir 'fix-encoding
+               (lambda _
+                 (substitute* "pdfx.dtx"
+                   (("    .+umaczy") "umaczy"))
+                 #t))))))
+      (propagated-inputs
+       `(("texlive-pdftex" ,texlive-pdftex)))
+      (home-page "https://www.ctan.org/pkg/pdfx")
+      (synopsis "PDF/X and PDF/A support for pdfTeX, LuaTeX and XeTeX")
+      (description
+       "This package helps LaTeX users to create PDF/X, PDF/A and other
 standards-compliant PDF documents with pdfTeX, LuaTeX and XeTeX.")
-    (license license:lppl1.2+)))
+      (license license:lppl1.2+))))
+
+(define-public texlive-latex-pdfx
+  (deprecated-package "texlive-latex-pdfx" texlive-pdfx))
 
 (define-public texlive-ydoc
   (let ((template (simple-texlive-package
@@ -7428,21 +8245,11 @@ standards-compliant PDF documents with pdfTeX, LuaTeX and XeTeX.")
              (add-after 'unpack 'chdir
                (lambda _ (chdir "source/latex/ydoc") #t))
              (add-after 'copy-files 'move-files
-               (lambda* (#:key outputs #:allow-other-keys)
-                 (let* ((share (string-append (assoc-ref outputs "out")
-                                              "/share/texmf-dist"))
-                        (target (string-append share "/tex/generic/ydoc"))
-                        (doc (string-append (assoc-ref outputs "doc")
-                                            "/share/texmf-dist/doc") ))
-                   (mkdir-p target)
-                   (for-each
-                    (lambda (file)
-                      (rename-file (string-append share "/tex/latex/ydoc/" file)
-                                   (string-append target "/" file)))
-                    '("ydocincl.tex" "ydocstrip.tex"))
-                   (mkdir-p doc)
-                   (rename-file (string-append share "/doc") doc)
-                   #t)))))))
+               (lambda* (#:key inputs outputs #:allow-other-keys)
+                 (let ((source (assoc-ref inputs "source"))
+                       (doc (string-append (assoc-ref outputs "doc")
+                                           "/share/texmf-dist/doc")))
+                   (copy-recursively (string-append source "/doc")  doc))))))))
       (home-page "http://www.ctan.org/pkg/ydoc")
       (synopsis "Macros for documentation of LaTeX classes and packages")
       (description "The package provides macros and environments to document
@@ -7462,7 +8269,7 @@ change.")
                          "/tex/generic/pstricks/"
                          "/tex/latex/pstricks/")
                    (base32
-                    "0sdxdd0qi4sccw9il7d4s7jivs24pq99cdzfnrf0gkqjb1y8s7cl")
+                    "15c9iqfq2y9c8c78cvqb6vzd5a5rm7qq5x7m05jq1hb8sgqrqb0j")
                    #:trivial? #t)))
     (package
       (inherit template)
@@ -7508,7 +8315,7 @@ of the old package @code{pst-char}.")
                    "texlive-marginnote"
                    (list "/source/latex/marginnote/marginnote.dtx")
                    (base32
-                    "1vj1k8xm11gjdfj60as42d8lsv3dbzrm5dlgqcfk89d9dzm3k39j"))))
+                    "152bwxhnssj40rr72r6cfirvqbnc0h7xnagfrbz58v2xck53qhg1"))))
     (package
       (inherit template)
       (home-page "http://www.ctan.org/pkg/marginnote")
@@ -7529,13 +8336,13 @@ may be used instead of @code{\\marginpar} at almost every place where
 frames made with the @code{framed} package.")
       (license license:lppl1.3c+))))
 
-(define-public texlive-iftex
+(define-public texlive-generic-iftex
   (let ((template (simple-texlive-package
-                   "texlive-iftex"
+                   "texlive-generic-iftex"
                    (list "/doc/generic/iftex/"
-                         "/tex/generic/iftex/iftex.sty")
+                         "/tex/generic/iftex/")
                    (base32
-                    "089zvw31gby150n1k0zdk2c0q97pgbqs46phxydaqil64b55nnl7")
+                    "147xa5kl4kjs05nj8v3kd7dpr5xkz3xp3gdvjih32ccd7527f5vp")
                    #:trivial? #t)))
     (package
       (inherit template)
@@ -7549,13 +8356,19 @@ package also provides the @code{\\RequirePDFTeX}, @code{\\RequireXeTeX}, and
 LuaTeX (respectively) is not the engine in use.")
       (license license:lppl1.3+))))
 
+(define-public texlive-iftex
+  (deprecated-package "texlive-iftex" texlive-generic-iftex))
+
+(define-public texlive-generic-ifxetex
+  (deprecated-package "texlive-generic-ifxetex" texlive-generic-iftex))
+
 (define-public texlive-tools
   (let ((template (simple-texlive-package
                    "texlive-tools"
                    (list "/doc/latex/tools/"
                          "/source/latex/tools/")
                    (base32
-                    "1ivhij7171wvrgcjn4wah84wxwpd21d0chh3zxab4pj067c8d0mh"))))
+                    "1xas0b69r3d5x4zhcqysgybyqaikd9avv6r1bdckb947id3iaz58"))))
     (package
       (inherit template)
       (arguments
@@ -7590,7 +8403,7 @@ are part of the LaTeX required tools distribution, comprising the packages:
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "0wancavix39j240pd8m9cgmwsijwx6jd6n54v8wg0x2rk5m44myp"))))
+                "0w4x82wmdvcmy8z3p55xvpz5q7jac1q1j591hi8mngfyqa8rda1c"))))
     (build-system texlive-build-system)
     (arguments
      '(#:tex-directory "latex/xkeyval"
@@ -7636,6 +8449,7 @@ are part of the LaTeX required tools distribution, comprising the packages:
                #t))))))
     (native-inputs
      `(("texlive-latex-base" ,texlive-latex-base)
+       ("texlive-latex-l3backend" ,texlive-latex-l3backend)
        ("texlive-cm" ,texlive-cm)
        ("texlive-lm" ,texlive-lm)
        ("texlive-url" ,texlive-url)
@@ -7643,7 +8457,7 @@ are part of the LaTeX required tools distribution, comprising the packages:
        ("texlive-xcolor" ,texlive-xcolor)
        ("texlive-latex-footmisc" ,texlive-latex-footmisc)
        ("texlive-latex-listings" ,texlive-latex-listings)
-       ("texlive-iftex" ,texlive-iftex)
+       ("texlive-generic-iftex" ,texlive-generic-iftex)
        ("texlive-pstricks" ,texlive-pstricks)
        ("texlive-pst-text" ,texlive-pst-text)
        ("texlive-tools" ,texlive-tools)
@@ -7698,7 +8512,7 @@ The behaviour in standalone mode may adjusted using a configuration file
              (list "/source/latex/siunitx/siunitx.dtx"
                    "/doc/latex/siunitx/README.md")
              (base32
-              "11kf6znkgw7y5qmw75qk6px6pqf57bwr53q0673zaiyq20lif96c")))
+              "05kl7yid2npp2gbfshnv2xd08w81fkh5h2n5wd9xcpbhlqjzx9sj")))
     (build-system texlive-build-system)
     (arguments
      '(#:tex-directory "latex/siunitx"
@@ -7738,7 +8552,7 @@ package to handle all of the possible unit-related needs of LaTeX users.")
        (file-name (string-append name "-" version "-checkout"))
        (sha256
         (base32
-         "1dqid48vgh25wmw8xzmx6x3pfgz1y9f0r8aza1yxq2mjny5yf68x"))))
+         "1mycxzl761p2zzmva8xsjbxbvrxx3vhi5p160mh9kiqwhrs5biz5"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/booktabs"))
     (home-page "http://www.ctan.org/pkg/booktabs")
@@ -7756,7 +8570,7 @@ to what constitutes a good table in this context.  The package offers
                    (list "/doc/latex/csquotes/"
                          "/tex/latex/csquotes/")
                    (base32
-                    "088gvi60d7sdl6fgg68fbz30fnpqc3yrpkx80sfw7vwgar3wm3av")
+                    "17y5mrmjmi7n0cgq4cnqr55f4bni6lx1pfdv5pzsmbrzha3mhbfg")
                    #:trivial? #t)))
     (package
       (inherit template)
@@ -7814,7 +8628,7 @@ XML file.
                    (list "/doc/latex/biblatex/"
                          "/tex/latex/biblatex/")
                    (base32
-                    "11kzvny50iklzkamr0rqd5x532q8rxny1xhmf96jl8mzj1d2zmay")
+                    "091cz2vrq22d1fr05wljd8vbllsz95q2hn2p8hhrwb2l2xrmxwn8")
                    #:trivial? #t)))
     (package
       (inherit template)
@@ -7853,7 +8667,7 @@ section.
                    (list "/doc/latex/todonotes/"
                          "/tex/latex/todonotes/")
                    (base32
-                    "0lvxsskz4bdfxhd59hf77kiq8k4nh2spb66vc6hifdgi21z8r8wm")
+                    "1jqw8jy73488bdr971w0dnlggsvicagpnpx8ddqkma920ba8rabp")
                    #:trivial? #t)))
     (package
       (inherit template)
@@ -7892,7 +8706,7 @@ included in the @code{units} bundle.")
                    (list "/doc/latex/microtype/"
                          "/tex/latex/microtype/")
                    (base32
-                    "0xmjpzbj4nqmnl5m7xx1bshdk2c8n57rmbvn0j479ypj4wdlq9iy")
+                    "07861ixrjzxm0l24z82ivhaj4v6xm4ijbaabp66jxsf8s8h7dq9n")
                    #:trivial? #t)))
     (package
       (inherit template)
@@ -7917,7 +8731,7 @@ the bundle.")
                    (list "/doc/latex/caption/"
                          "/tex/latex/caption/")
                    (base32
-                    "09gmh8yjj9f5zak8r18g87w9p5jn7flnvmlhxmvdq6992mbdc6hg")
+                    "1isnn375d14xsx398j3m8rbb0pdk12kijw4xcgl82xici170klwq")
                    #:trivial? #t)))
     (package
       (inherit template)
@@ -8094,7 +8908,7 @@ a repackaging, for use with TeX, of the Bitstream Vera family.")
                     "/fonts/vf/public/fourier/"
                     "/tex/latex/fourier/")
               (base32
-               "1vs2xdx6f6hd01zlslx3y93g3dsa7k3yhqpnhgkizgjmz0r9ipz1")
+               "04d575nd4yvl58g9dfab9mrjxiv4792bdkz4bjvlkx6x257vlfzn")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/fourier")
     (synopsis "Utopia fonts for LaTeX documents")
@@ -8140,7 +8954,7 @@ matching maths fonts are provided by the @code{fourier} and
        (file-name (string-append name "-" version "-checkout"))
        (sha256
         (base32
-         "19mhp9l7cjw0sbq55c9lz0l2pffkyhyir3i63jqynifjmglbgkl7"))))
+         "0j3w1y66pkf3bjl9dh5xy3lfg33rg08s4wx37a3jcndvcji20j3f"))))
     (build-system texlive-build-system)
     (arguments '(#:tex-directory "latex/fontaxes"))
     (home-page "http://www.ctan.org/pkg/fontaxes")
@@ -8183,7 +8997,7 @@ footnote style author/affiliation input in the @command{\\author} command,
               (list "/doc/latex/mweights/"
                     "/tex/latex/mweights/")
               (base32
-               "1k2xclk54q3xgn48hji23q52nivkzgwf0s30bmm6k83f7v57qv8h")
+               "12493g3yz06mhiybnphqbp49fjzy36clzw63b74mkfhsg1pq7h1b")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/mweights")
     (synopsis "Support for multiple-weight font packages")
@@ -8209,7 +9023,7 @@ or if it differs from the weight desired for another font family.  The
                     "/fonts/vf/impallari/cabin/"
                     "/tex/latex/cabin/")
               (base32
-               "0dfq9gqch80iyvp58spmpmqfc9h61sjvnddm81ba0af1p8ag8sfg")
+               "1gqqqbj7i18fs1ss5n3axd821hzq5kbv1dl7dqxp4gba619f1rli")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/cabin")
     (synopsis "Humanist Sans Serif font with LaTeX support")
@@ -8240,7 +9054,7 @@ use with [pdf]LaTeX.")
                     "/fonts/vf/public/newtx/"
                     "/tex/latex/newtx/")
               (base32
-               "0rqjj33m6xkhrjzjhf24kxdg61az5sqsbcl0m7xqkf4akqybn22d")
+               "0h0wm3cd0wxag5x7vy3vgr42jd8m6ffkl90pnkvqdxzbnfdjv3l6")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/newtx")
     (synopsis "Repackaging of the TX fonts with improved metrics")
@@ -8268,7 +9082,7 @@ mathematics package that matches Libertine text quite well.")
                     "/fonts/vf/public/xcharter/"
                     "/tex/latex/xcharter/")
               (base32
-               "0krm4h53lw7h9jbmv5nc89fm4x7i8l574aig1l4mw8w3ziknwmi7")
+               "0d8rvcmvxrlxqqxpirxqbhmiijpsz5y4vvldh1jnc018aannjlhm")
               #:trivial? #t))
     (home-page "https://www.ctan.org/pkg/xcharter")
     (synopsis "Extension of the Bitstream Charter fonts")
@@ -8539,13 +9353,38 @@ Arguments may contain verbatim material or other special use of characters.
 The macros were designed for use within other macros.")
       (license license:lppl1.3))))
 
+(define-public texlive-grfext
+  (let ((template (simple-texlive-package
+                   "texlive-grfext"
+                   (list "/doc/latex/grfext/README.md"
+                         "/source/latex/grfext/grfext.dtx")
+                   (base32
+                    "1cdvjp9gcnixxlbl8ibwz1yr799gwax5hm686hwmwsigdgafhzgq"))))
+    (package
+      (inherit template)
+      (arguments
+       (substitute-keyword-arguments (package-arguments template)
+         ((#:tex-directory _ '())
+          "latex/grfext")
+         ((#:build-targets _ '())
+          ''("grfext.dtx"))
+         ((#:phases phases)
+          `(modify-phases ,phases
+             (add-after 'unpack 'chdir
+               (lambda _ (chdir "source/latex/grfext")))))))
+      (home-page "https://github.com/ho-tex/grfext")
+      (synopsis "Manipulate the graphics package's list of extensions")
+      (description "This package provides macros for adding to, and reordering
+the list of graphics file extensions recognised by package graphics.")
+      (license license:lppl1.3c+))))
+
 (define-public texlive-adjustbox
   (let ((template (simple-texlive-package
                    "texlive-adjustbox"
                    (list "/doc/latex/adjustbox/"
                          "/source/latex/adjustbox/")
                    (base32
-                    "14vd0yd50bky2pbbjkn59q1aglnqpdhh8vwjdyan0jkzljsr2ch8"))))
+                    "074nxbnl184b6iwhis5n85pilq3b2pld3bbrq0wc30hw462m898k"))))
     (package
       (inherit template)
       (arguments
@@ -8586,7 +9425,7 @@ provided box macros are @code{\\lapbox}, @code{\\marginbox},
                    (list "/doc/latex/tcolorbox/"
                          "/tex/latex/tcolorbox/")
                    (base32
-                    "172lcnk6964alsga5w6kcvjhpjjcw1g9df73k8pyhl5lf4fmxa29")
+                    "1qnsbblkadzdn1fx2k21xnlwcb35pg9xya24chkm66jmidi22qp0")
                    #:trivial? #true)))
     (package
       (inherit template)
diff --git a/gnu/packages/texinfo.scm b/gnu/packages/texinfo.scm
index a2fe989f1a..f9c40b3450 100644
--- a/gnu/packages/texinfo.scm
+++ b/gnu/packages/texinfo.scm
@@ -5,7 +5,7 @@
 ;;; Copyright © 2017, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2019 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2019 Pierre-Moana Levesque <pierre.moana.levesque@gmail.com>
-;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
+;;; Copyright © 2019, 2020 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2020 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 ;;;
@@ -59,21 +59,18 @@
      ;; with the native compiler, the environment is reset. This leads to
      ;; multiple environment variables missing. Do not reset the environment
      ;; to prevent that.
-     (if (%current-target-system)
-         '(#:phases
-           (modify-phases %standard-phases
-             (add-before 'configure 'fix-cross-configure
-               (lambda _
-                 (substitute* "configure"
-                   (("env -i")
-                    "env "))
-                 #t))))
-         '()))
+     `(#:phases
+       (if ,(%current-target-system)
+            (modify-phases %standard-phases
+              (add-before 'configure 'fix-cross-configure
+                (lambda _
+                  (substitute* "configure"
+                    (("env -i")
+                     "env "))
+                  #t)))
+            %standard-phases)))
     (inputs `(("ncurses" ,ncurses)
-              ;; TODO: remove `if' in the next rebuild cycle.
-              ,@(if (%current-target-system)
-                    `(("perl" ,perl))
-                    '())))
+              ("perl" ,perl)))
     ;; When cross-compiling, texinfo will build some of its own binaries with
     ;; the native compiler. This means ncurses is needed both in both inputs
     ;; and native-inputs.
diff --git a/gnu/packages/text-editors.scm b/gnu/packages/text-editors.scm
index 5a2c7bc20d..7bdfbbbd35 100644
--- a/gnu/packages/text-editors.scm
+++ b/gnu/packages/text-editors.scm
@@ -766,7 +766,8 @@ environment with Markdown markup.")
                (let ((bin (string-append out "/bin"))
                      (executable (string-append share "/bin/manuskript")))
                  (wrap-program executable
-                   (list "PYTHONPATH" 'prefix (list (getenv "PYTHONPATH"))))
+                   (list "GUIX_PYTHONPATH" 'prefix
+                         (list (getenv "GUIX_PYTHONPATH"))))
                  (mkdir-p bin)
                  (with-directory-excursion bin
                    (symlink (string-append share "/bin/manuskript")
diff --git a/gnu/packages/tls.scm b/gnu/packages/tls.scm
index 3e202a901b..04271ce16f 100644
--- a/gnu/packages/tls.scm
+++ b/gnu/packages/tls.scm
@@ -5,7 +5,7 @@
 ;;; Copyright © 2013, 2015 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2015 David Thompson <davet@gnu.org>
 ;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020 Leo Famulari <leo@famulari.name>
-;;; Copyright © 2016, 2017, 2019 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2017, 2019, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016, 2017, 2018 Nikita <nikita@n0.is>
 ;;; Copyright © 2016 Hartmut Goebel <h.goebel@crazy-compilers.com>
 ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
@@ -15,8 +15,10 @@
 ;;; Copyright © 2018 Clément Lassieur <clement@lassieur.org>
 ;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2021 Solene Rapenne <solene@perso.pw>
 ;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;; Copyright © 2021 Matthew James Kraai <kraai@ftbfs.org>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -40,6 +42,7 @@
   #:use-module (guix download)
   #:use-module (guix git-download)
   #:use-module (guix utils)
+  #:use-module (guix gexp)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system go)
   #:use-module (guix build-system perl)
@@ -61,6 +64,7 @@
   #:use-module (gnu packages linux)
   #:use-module (gnu packages ncurses)
   #:use-module (gnu packages nettle)
+  #:use-module (gnu packages networking)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
@@ -76,7 +80,7 @@
 (define-public libtasn1
   (package
     (name "libtasn1")
-    (version "4.16.0")
+    (version "4.17.0")
     (source
      (origin
       (method url-fetch)
@@ -84,7 +88,7 @@
                           version ".tar.gz"))
       (sha256
        (base32
-        "179jskl7dmfp1rd2khkzmlibzgki4wi6hvmmwfv7q49r728b03qf"))))
+        "19a53i1ajs4dd8nnlr2i6gbzvla84ay71g3y1phvh8krx8f5brzc"))))
     (build-system gnu-build-system)
     (arguments
      `(#:configure-flags '("--disable-static")))
@@ -167,8 +171,7 @@ living in the same process.")
 (define-public gnutls
   (package
     (name "gnutls")
-    (version "3.6.15")
-    (replacement gnutls-3.6.16)
+    (version "3.7.2")
     (source (origin
               (method url-fetch)
               ;; Note: Releases are no longer on ftp.gnu.org since the
@@ -177,20 +180,20 @@ living in the same process.")
                                   (version-major+minor version)
                                   "/gnutls-" version ".tar.xz"))
               (patches (search-patches "gnutls-skip-trust-store-test.patch"
-                                       "gnutls-cross.patch"
-                                       "gnutls-CVE-2021-20231.patch"
-                                       "gnutls-CVE-2021-20232.patch"))
+                                       "gnutls-cross.patch"))
               (sha256
                (base32
-                "0n0m93ymzd0q9hbknxc2ycanz49sqlkyyf73g9fk7n787llc7a0f"))))
+                "0li7mwjnm64mbxhacz0rpf6i9qd83f53fvbrx96alpqqk9d6qvk4"))))
     (build-system gnu-build-system)
     (arguments
      `(#:tests? ,(not (or (%current-target-system)
                           (hurd-target?)))
-       ;; Ensure we don't keep a reference to net-tools.
-       #:disallowed-references ,(if (hurd-target?) '() (list net-tools))
+       ;; Ensure we don't keep a reference to the tools used for testing.
+       #:disallowed-references ,(if (hurd-target?)
+                                    '()
+                                    (list net-tools iproute socat))
        #:configure-flags
-       (list
+       (cons*
              ;; GnuTLS doesn't consult any environment variables to specify
              ;; the location of the system-wide trust store.  Instead it has a
              ;; configure-time option.  Unless specified, its configure script
@@ -211,13 +214,25 @@ living in the same process.")
              (string-append "--with-guile-extension-dir="
                             "$(libdir)/guile/$(GUILE_EFFECTIVE_VERSION)/extensions")
 
-             ;; FIXME: Temporarily disable p11-kit support since it is not
-             ;; working on mips64el.
-             "--without-p11-kit")
+             (let ((system ,(or (%current-target-system)
+                                (%current-system))))
+               (if (string-prefix? "mips64el" system)
+                   (list
+                    ;; FIXME: Temporarily disable p11-kit support since it is
+                    ;; not working on mips64el.
+                    "--without-p11-kit")
+                   '())))
 
        #:phases (modify-phases %standard-phases
-                  (add-after
-                   'install 'move-doc
+                  ;; fastopen.sh fails to connect to the server in the builder
+                  ;; environment (see:
+                  ;; https://gitlab.com/gnutls/gnutls/-/issues/1095).
+                  (add-after 'unpack 'disable-failing-tests
+                    (lambda _
+                      (substitute* "tests/fastopen.sh"
+                        (("^unset RETCODE")
+                         "exit 77\n")))) ;skip
+                  (add-after 'install 'move-doc
                    (lambda* (#:key outputs #:allow-other-keys)
                      ;; Copy the 4.1 MiB of section 3 man pages to "doc".
                      (let* ((out    (assoc-ref outputs "out"))
@@ -226,8 +241,7 @@ living in the same process.")
                             (oldman (string-append out "/share/man/man3")))
                        (mkdir-p mandir)
                        (copy-recursively oldman mandir)
-                       (delete-file-recursively oldman)
-                       #t))))))
+                       (delete-file-recursively oldman)))))))
     (outputs '("out"                              ;4.4 MiB
                "debug"
                "doc"))                            ;4.1 MiB of man pages
@@ -237,10 +251,14 @@ living in the same process.")
              '())
        ,@(if (hurd-target?)
              '()
-             `(("net-tools" ,net-tools)))
+             `(("net-tools" ,net-tools)
+               ("iproute" ,iproute)               ;for 'ss'
+               ("socat" ,socat)))                 ;several tests rely on it
        ("pkg-config" ,pkg-config)
+       ("texinfo" ,texinfo)
        ("which" ,which)
-       ,@(if (hurd-target?) '()
+       ,@(if (hurd-target?)
+             '()
              `(("datefudge" ,datefudge)))         ;tests rely on 'datefudge'
        ("util-linux" ,util-linux)))               ;one test needs 'setsid'
     (inputs
@@ -250,7 +268,12 @@ living in the same process.")
      `(("libtasn1" ,libtasn1)
        ("libidn2" ,libidn2)
        ("nettle" ,nettle)
-       ("zlib" ,zlib)))
+       ("zlib" ,zlib)
+       ,@(let ((system (or (%current-target-system)
+                           (%current-system))))
+           (if (string-prefix? "mips64el" system)
+               '()
+               `(("p11-kit" ,p11-kit))))))
     (home-page "https://www.gnu.org/software/gnutls/")
     (synopsis "Transport layer security library")
     (description
@@ -262,68 +285,6 @@ required structures.")
     (properties '((ftp-server . "ftp.gnutls.org")
                   (ftp-directory . "/gcrypt/gnutls")))))
 
-;; Replacement package to fix CVE-2021-20305.
-(define gnutls-3.6.16
-  (package
-    (inherit gnutls)
-    (version "3.6.16")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "mirror://gnupg/gnutls/v"
-                                  (version-major+minor version)
-                                  "/gnutls-" version ".tar.xz"))
-              (patches (search-patches "gnutls-skip-trust-store-test.patch"
-                                       "gnutls-cross.patch"))
-              (sha256
-               (base32
-                "1czk511pslz367shf32f2jvvkp7y1323bcv88c2qng98mj0v6y8v"))))
-    (arguments
-     (if (%current-target-system)
-         (substitute-keyword-arguments (package-arguments gnutls)
-           ((#:phases phases '%standard-phases)
-            `(modify-phases ,phases
-               (add-before 'configure 'build-eccdata-headers
-                 (lambda* (#:key configure-flags #:allow-other-keys)
-                   ;; Build the 'ecc/eccdata' program using the native
-                   ;; compiler, not the cross-compiler as happens by default,
-                   ;; and use it to build lib/nettle/ecc/ecc-*.h.  In GnuTLS
-                   ;; 3.6.15, this was not necessary because the tarball
-                   ;; contained pre-generated lib/nettle/ecc/ecc-*.h files as
-                   ;; well as 'ecc/eccdata.stamp'.
-                   (let ((jobs  (number->string (parallel-job-count)))
-                         (patch (assoc-ref %standard-phases
-                                           'patch-generated-file-shebangs)))
-                     (mkdir "+native-build")
-                     (with-directory-excursion "+native-build"
-                       ;; Build natively, with the native compiler, GMP, etc.
-                       (invoke "../configure"
-                               (string-append "SHELL=" (which "sh"))
-                               (string-append "CONFIG_SHELL=" (which "sh"))
-                               "NETTLE_CFLAGS=   " "NETTLE_LIBS=   "
-                               "HOGWEED_CFLAGS=   " "HOGWEED_LIBS=   "
-                               "LIBTASN1_CFLAGS=   " "LIBTASN1_LIBS=   "
-                               "ac_cv_func_nettle_rsa_sec_decrypt=yes"
-                               "--without-p11-kit" "--disable-guile")
-                       (patch)
-                       (invoke "make" "-C" "gl" "-j" jobs)
-                       (invoke "make" "-C" "lib/nettle" "V=1" "-j" jobs))
-
-                     ;; Copy the files we obtained during native build.
-                     (for-each (lambda (file)
-                                 (install-file file "lib/nettle/ecc"))
-                               (find-files
-                                "+native-build/lib/nettle/ecc"
-                                "^(eccdata\\.stamp|ecc-.*\\.h)$"))))))))
-         (package-arguments gnutls)))
-    (native-inputs
-     (if (%current-target-system)
-         `(("libtasn1" ,libtasn1)                 ;for 'ecc/eccdata'
-           ("libidn2" ,libidn2)
-           ("nettle" ,nettle)
-           ("zlib" ,zlib)
-           ,@(package-native-inputs gnutls))
-         (package-native-inputs gnutls)))))
-
 (define-public gnutls/guile-2.0
   ;; GnuTLS for Guile 2.0.
   (package/inherit gnutls
@@ -351,148 +312,34 @@ required structures.")
 (define-public guile3.0-gnutls
   (deprecated-package "guile3.0-gnutls" gnutls))
 
-(define-public openssl
-  (package
-   (name "openssl")
-   (version "1.1.1j")
-   (replacement openssl-1.1.1k)
-   (source (origin
-             (method url-fetch)
-             (uri (list (string-append "https://www.openssl.org/source/openssl-"
-                                       version ".tar.gz")
-                        (string-append "ftp://ftp.openssl.org/source/"
-                                       "openssl-" version ".tar.gz")
-                        (string-append "ftp://ftp.openssl.org/source/old/"
-                                       (string-trim-right version char-set:letter)
-                                       "/openssl-" version ".tar.gz")))
-             (patches (search-patches "openssl-1.1-c-rehash-in.patch"))
-             (sha256
-              (base32
-               "1gw17520vh13izy1xf5q0a2fqgcayymjjj5bk0dlkxndfnszrwma"))))
-   (build-system gnu-build-system)
-   (outputs '("out"
-              "doc"         ;6.8 MiB of man3 pages and full HTML documentation
-              "static"))    ;6.4 MiB of .a files
-   (native-inputs `(("perl" ,perl)))
-   (arguments
-    `(#:parallel-tests? #f
-      #:test-target "test"
-
-      ;; Changes to OpenSSL sometimes cause Perl to "sneak in" to the closure,
-      ;; so we explicitly disallow it here.
-      #:disallowed-references ,(list (canonical-package perl))
-      #:phases
-      (modify-phases %standard-phases
-       ,@(if (%current-target-system)
-           '((add-before
-               'configure 'set-cross-compile
-               (lambda* (#:key target outputs #:allow-other-keys)
-                 (setenv "CROSS_COMPILE" (string-append target "-"))
-                 (setenv "CONFIGURE_TARGET_ARCH"
-                         (cond
-                           ((string-prefix? "i586" target)
-                            "hurd-x86")
-                           ((string-prefix? "i686" target)
-                            "linux-x86")
-                           ((string-prefix? "x86_64" target)
-                            "linux-x86_64")
-                           ((string-prefix? "mips64el" target)
-                            "linux-mips64")
-                           ((string-prefix? "arm" target)
-                            "linux-armv4")
-                           ((string-prefix? "aarch64" target)
-                            "linux-aarch64")
-                           ((string-prefix? "powerpc64le" target)
-                            "linux-ppc64le")
-                           ((string-prefix? "powerpc64" target)
-                            "linux-ppc64")
-                           ((string-prefix? "powerpc" target)
-                            "linux-ppc")))
-                 #t)))
-           '())
-        (replace 'configure
-          (lambda* (#:key outputs #:allow-other-keys)
-            (let* ((out (assoc-ref outputs "out"))
-                   (lib (string-append out "/lib")))
-              ;; It's not a shebang so patch-source-shebangs misses it.
-              (substitute* "config"
-                (("/usr/bin/env")
-                 (string-append (assoc-ref %build-inputs "coreutils")
-                                "/bin/env")))
-              (invoke ,@(if (%current-target-system)
-                          '("./Configure")
-                          '("./config"))
-                      "shared"       ;build shared libraries
-                      "--libdir=lib"
-
-                      ;; The default for this catch-all directory is
-                      ;; PREFIX/ssl.  Change that to something more
-                      ;; conventional.
-                      (string-append "--openssldir=" out
-                                     "/share/openssl-"
-                                     ,(package-version this-package))
+(define (target->openssl-target target)
+  "Return the value to set CONFIGURE_TARGET_ARCH to when cross-compiling
+OpenSSL for TARGET."
+  ;; Keep this code outside the build code,
+  ;; such that new targets can be added
+  ;; without causing rebuilds for other targets.
+  (cond ((string-prefix? "i586" target)
+         "hurd-x86")
+        ((string-prefix? "i686" target)
+         "linux-x86")
+        ((string-prefix? "x86_64" target)
+         "linux-x86_64")
+        ((string-prefix? "mips64el" target)
+         "linux-mips64")
+        ((string-prefix? "arm" target)
+         "linux-armv4")
+        ((string-prefix? "aarch64" target)
+         "linux-aarch64")
+        ((string-prefix? "powerpc64le" target)
+         "linux-ppc64le")
+        ((string-prefix? "powerpc64" target)
+         "linux-ppc64")
+        ((string-prefix? "powerpc" target)
+         "linux-ppc")))
 
-                      (string-append "--prefix=" out)
-                      (string-append "-Wl,-rpath," lib)
-                      ,@(if (%current-target-system)
-                          '((getenv "CONFIGURE_TARGET_ARCH"))
-                          '())))))
-        (add-after 'install 'move-static-libraries
-          (lambda* (#:key outputs #:allow-other-keys)
-            ;; Move static libraries to the "static" output.
-            (let* ((out    (assoc-ref outputs "out"))
-                   (lib    (string-append out "/lib"))
-                   (static (assoc-ref outputs "static"))
-                   (slib   (string-append static "/lib")))
-              (for-each (lambda (file)
-                          (install-file file slib)
-                          (delete-file file))
-                        (find-files lib "\\.a$"))
-              #t)))
-        (add-after 'install 'move-extra-documentation
-          (lambda* (#:key outputs #:allow-other-keys)
-               ;; Move man3 pages and full HTML documentation to "doc".
-               (let* ((out    (assoc-ref outputs "out"))
-                      (man3   (string-append out "/share/man/man3"))
-                      (html (string-append out "/share/doc/openssl"))
-                      (doc    (assoc-ref outputs "doc"))
-                      (man-target (string-append doc "/share/man/man3"))
-                      (html-target (string-append doc "/share/doc/openssl")))
-                 (copy-recursively man3 man-target)
-                 (delete-file-recursively man3)
-                 (copy-recursively html html-target)
-                 (delete-file-recursively html)
-                 #t)))
-        (add-after
-         'install 'remove-miscellany
-         (lambda* (#:key outputs #:allow-other-keys)
-           ;; The 'misc' directory contains random undocumented shell and Perl
-           ;; scripts.  Remove them to avoid retaining a reference on Perl.
-           (let ((out (assoc-ref outputs "out")))
-             (delete-file-recursively (string-append out "/share/openssl-"
-                                                     ,(package-version this-package)
-                                                     "/misc"))
-             #t))))))
-   (native-search-paths
-    (list (search-path-specification
-           (variable "SSL_CERT_DIR")
-           (separator #f)                        ;single entry
-           (files '("etc/ssl/certs")))
-          (search-path-specification
-           (variable "SSL_CERT_FILE")
-           (file-type 'regular)
-           (separator #f)                        ;single entry
-           (files '("etc/ssl/certs/ca-certificates.crt")))))
-   (synopsis "SSL/TLS implementation")
-   (description
-    "OpenSSL is an implementation of SSL/TLS.")
-   (license license:openssl)
-   (home-page "https://www.openssl.org/")))
-
-;; Replacement package to fix CVE-2021-3449 and CVE-2021-3450.
-(define openssl-1.1.1k
+(define-public openssl
   (package
-    (inherit openssl)
+    (name "openssl")
     (version "1.1.1k")
     (source (origin
               (method url-fetch)
@@ -506,7 +353,109 @@ required structures.")
               (patches (search-patches "openssl-1.1-c-rehash-in.patch"))
               (sha256
                (base32
-                "1rdfzcrxy9y38wqdw5942vmdax9hjhgrprzxm42csal7p5shhal9"))))))
+                "1rdfzcrxy9y38wqdw5942vmdax9hjhgrprzxm42csal7p5shhal9"))))
+    (build-system gnu-build-system)
+    (outputs '("out"
+               "doc"         ;6.8 MiB of man3 pages and full HTML documentation
+               "static"))    ;6.4 MiB of .a files
+    (native-inputs `(("perl" ,perl)))
+    (arguments
+     `(#:parallel-tests? #f
+       #:test-target "test"
+
+       ;; Changes to OpenSSL sometimes cause Perl to "sneak in" to the closure,
+       ;; so we explicitly disallow it here.
+       #:disallowed-references ,(list (canonical-package perl))
+       #:phases
+       ,#~
+       (modify-phases %standard-phases
+         #$@(if (%current-target-system)
+                #~((add-before
+                       'configure 'set-cross-compile
+                     (lambda* (#:key target #:allow-other-keys)
+                       (setenv "CROSS_COMPILE" (string-append target "-"))
+                       (setenv "CONFIGURE_TARGET_ARCH"
+                               #$(target->openssl-target
+                                  (%current-target-system))))))
+                #~())
+         (replace 'configure
+           (lambda* (#:key configure-flags #:allow-other-keys)
+             (let* ((out #$output)
+                    (lib (string-append out "/lib")))
+               ;; It's not a shebang so patch-source-shebangs misses it.
+               (substitute* "config"
+                 (("/usr/bin/env")
+                  (string-append (assoc-ref %build-inputs "coreutils")
+                                 "/bin/env")))
+               (apply
+                invoke #$@(if (%current-target-system)
+                              #~("./Configure")
+                              #~("./config"))
+                "shared"    ;build shared libraries
+                "--libdir=lib"
+
+                ;; The default for this catch-all directory is
+                ;; PREFIX/ssl.  Change that to something more
+                ;; conventional.
+                (string-append "--openssldir=" out
+                               "/share/openssl-"
+                               #$(package-version this-package))
+
+                (string-append "--prefix=" out)
+                (string-append "-Wl,-rpath," lib)
+                #$@(if (%current-target-system)
+                       #~((getenv "CONFIGURE_TARGET_ARCH"))
+                       #~())
+                configure-flags)
+               ;; Output the configure variables.
+               (invoke "perl" "configdata.pm" "--dump"))))
+         (add-after 'install 'move-static-libraries
+           (lambda _
+             ;; Move static libraries to the "static" output.
+             (let* ((out    #$output)
+                    (lib    (string-append out "/lib"))
+                    (static #$output:static)
+                    (slib   (string-append static "/lib")))
+               (for-each (lambda (file)
+                           (install-file file slib)
+                           (delete-file file))
+                         (find-files lib "\\.a$")))))
+         (add-after 'install 'move-extra-documentation
+           (lambda _
+             ;; Move man pages and full HTML documentation to "doc".
+             (let* ((out    #$output)
+                    (man    (string-append out "/share/man"))
+                    (html   (string-append out "/share/doc/openssl"))
+                    (doc    #$output:doc)
+                    (man-target (string-append doc "/share/man"))
+                    (html-target (string-append doc "/share/doc/openssl")))
+               (mkdir-p (dirname man-target))
+               (mkdir-p (dirname html-target))
+               (rename-file man man-target)
+               (rename-file html html-target))))
+         (add-after
+             'install 'remove-miscellany
+           (lambda _
+             ;; The 'misc' directory contains random undocumented shell and Perl
+             ;; scripts.  Remove them to avoid retaining a reference on Perl.
+             (delete-file-recursively (string-append #$output "/share/openssl-"
+                                                     #$(package-version this-package)
+                                                     "/misc")))))))
+    (native-search-paths
+     (list (search-path-specification
+            (variable "SSL_CERT_DIR")
+            (separator #f)                        ;single entry
+            (files '("etc/ssl/certs")))
+           (search-path-specification
+            (variable "SSL_CERT_FILE")
+            (file-type 'regular)
+            (separator #f)                        ;single entry
+            (files '("etc/ssl/certs/ca-certificates.crt")))))
+    (synopsis "SSL/TLS implementation")
+    (description
+     "OpenSSL is an implementation of SSL/TLS.")
+    (license license:openssl)
+    (home-page "https://www.openssl.org/")))
 
 (define-public openssl-1.0
   (package
@@ -535,7 +484,7 @@ required structures.")
        ;; Parallel build is not supported in 1.0.x.
        ((#:parallel-build? _ #f) #f)
        ((#:phases phases)
-        `(modify-phases ,phases
+       #~(modify-phases #$phases
            (add-before 'patch-source-shebangs 'patch-tests
              (lambda* (#:key inputs native-inputs #:allow-other-keys)
                (let ((bash (assoc-ref (or native-inputs inputs) "bash")))
@@ -558,9 +507,9 @@ required structures.")
 	     ;; Override this phase because OpenSSL 1.0 does not understand -rpath.
 	     (lambda* (#:key outputs #:allow-other-keys)
 	       (let ((out (assoc-ref outputs "out")))
-		 (invoke ,@(if (%current-target-system)
-			       '("./Configure")
-			       '("./config"))
+		 (invoke #$@(if (%current-target-system)
+			        #~("./Configure")
+			        #~("./config"))
 			 "shared"                 ;build shared libraries
 			 "--libdir=lib"
 
@@ -568,12 +517,12 @@ required structures.")
 			 ;; PREFIX/ssl.  Change that to something more
 			 ;; conventional.
 			 (string-append "--openssldir=" out
-					"/share/openssl-" ,version)
+					"/share/openssl-" #$version)
 
 			 (string-append "--prefix=" out)
-			 ,@(if (%current-target-system)
-			       '((getenv "CONFIGURE_TARGET_ARCH"))
-			       '())))))
+			 #$@(if (%current-target-system)
+			        '((getenv "CONFIGURE_TARGET_ARCH"))
+			        '())))))
         (delete 'move-extra-documentation)
         (add-after 'install 'move-man3-pages
           (lambda* (#:key outputs #:allow-other-keys)
@@ -598,7 +547,7 @@ required structures.")
                ;; scripts.  Remove them to avoid retaining a reference on Perl.
                (let ((out (assoc-ref outputs "out")))
                  (delete-file-recursively (string-append out "/share/openssl-"
-                                                         ,version "/misc"))
+                                                         #$version "/misc"))
                  #t)))))))))
 
 (define-public libressl
@@ -918,8 +867,7 @@ number generator")
        (modify-phases %standard-phases
          (add-after 'unpack 'patch-paths
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((pem (string-append (assoc-ref inputs "libressl")
-                                       "/etc/ssl/cert.pem")))
+             (let ((pem (search-input-file inputs "/etc/ssl/cert.pem")))
                (substitute* "http.c"
                  (("/etc/ssl/cert.pem") pem))
                #t)))
diff --git a/gnu/packages/tmux.scm b/gnu/packages/tmux.scm
index 682fa9737a..e0aa2b3751 100644
--- a/gnu/packages/tmux.scm
+++ b/gnu/packages/tmux.scm
@@ -171,10 +171,6 @@ windows.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             ;; Extend PYTHONPATH so the built package will be found.
-             (setenv "PYTHONPATH"
-                     (string-append (getcwd) "/build/lib:"
-                                    (getenv "PYTHONPATH")))
              ;; Fix <https://github.com/tmux-python/libtmux/issues/265>.
              (setenv "LANG" "en_US.utf8")
              ;; Skip tests that I suspect fail because of a change
diff --git a/gnu/packages/uml.scm b/gnu/packages/uml.scm
index ad766beece..83f10a08a1 100644
--- a/gnu/packages/uml.scm
+++ b/gnu/packages/uml.scm
@@ -54,8 +54,7 @@
              #t))
          (add-after 'delete-extra-from-classpath 'patch-usr-bin-dot
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((dot (string-append (assoc-ref inputs "graphviz")
-                                       "/bin/dot")))
+             (let ((dot (search-input-file inputs "/bin/dot")))
                (substitute*
                    "src/net/sourceforge/plantuml/cucadiagram/dot/GraphvizLinux.java"
                  (("/usr/bin/dot") dot)))
diff --git a/gnu/packages/valgrind.scm b/gnu/packages/valgrind.scm
index 4036bd461b..e90142b6a7 100644
--- a/gnu/packages/valgrind.scm
+++ b/gnu/packages/valgrind.scm
@@ -35,7 +35,7 @@
     (name "valgrind")
     ;; Note: check "guix refresh -l -e '(@ (gnu packages valgrind) valgrind)'"
     ;; when updating this package to find which branch it should go to.
-    (version "3.16.1")
+    (version "3.17.0")
     (source (origin
               (method url-fetch)
               (uri (list (string-append "https://sourceware.org/pub/valgrind"
@@ -44,7 +44,7 @@
                                         "/valgrind-" version ".tar.bz2")))
               (sha256
                (base32
-                "1jik19rcd34ip8a5c9nv5wfj8k8maqb8cyclr4xhznq2gcpkl7y9"))
+                "18l5jbk301j3462gipqn9bkfx44mdmwn0pwr73r40gl1irkfqfmd"))
               (patches (search-patches "valgrind-enable-arm.patch"))))
     (build-system gnu-build-system)
     (outputs '("doc"                              ;16 MB
diff --git a/gnu/packages/version-control.scm b/gnu/packages/version-control.scm
index 7c1dbe8b26..8bdac8df53 100644
--- a/gnu/packages/version-control.scm
+++ b/gnu/packages/version-control.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2014 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2015, 2016 Mathieu Lirzin <mthl@gnu.org>
 ;;; Copyright © 2014, 2015, 2016 Mark H Weaver <mhw@netris.org>
@@ -672,12 +672,12 @@ logs to GNU ChangeLog format.")
                    (git (assoc-ref inputs "git")))
                (wrap-program (string-append out "/bin/gl")
                  `("PATH" ":" prefix (,(string-append git "/bin")))
-                 `("PYTHONPATH" ":" =
+                 `("GUIX_PYTHONPATH" ":" =
                    (,(string-append out "/lib/python"
                                     ,(version-major+minor
                                       (package-version python))
                                     "/site-packages:")
-                    ,(getenv "PYTHONPATH"))))
+                    ,(getenv "GUIX_PYTHONPATH"))))
                #t))))))
     (native-inputs
      `(("git-for-tests" ,git-minimal)))
@@ -978,7 +978,7 @@ collaboration using typical untrusted file hosts or services.")
               (lambda (file)
                 (wrap-program (string-append (assoc-ref outputs "out")
                                              "/lib/cgit/filters/" file)
-                  `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH")))))
+                  `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH")))))
               '("syntax-highlighting.py"
                 "html-converters/md2html"))
              #t)))))
@@ -1035,9 +1035,8 @@ a built-in cache to decrease server I/O pressure.")
                                (assoc-ref inputs "git") "/bin/git"
                                "'"))
                (("/usr/sbin/sendmail")
-                (string-append (assoc-ref inputs "sendmail")
-                               "/usr/sbin/sendmail")))
-             #t)))))
+                (search-input-file inputs
+                                   "/usr/sbin/sendmail"))))))))
     (inputs
      `(("git" ,git)
        ("sendmail" ,sendmail)))
@@ -1424,8 +1423,7 @@ also walk each side of a merge and test those changes individually.")
                   (delete 'build)
                   (add-before 'install 'patch-scripts
                     (lambda* (#:key inputs #:allow-other-keys)
-                      (let ((perl (string-append (assoc-ref inputs "perl")
-                                                 "/bin/perl")))
+                      (let ((perl (search-input-file inputs "/bin/perl")))
                         ;; This seems to take care of every shell script that
                         ;; invokes Perl.
                         (substitute* (find-files "." ".*")
@@ -1462,8 +1460,7 @@ also walk each side of a merge and test those changes individually.")
                       (substitute* '("src/lib/Gitolite/Hooks/PostUpdate.pm"
                                      "src/lib/Gitolite/Hooks/Update.pm")
                         (("/usr/bin/perl")
-                         (string-append (assoc-ref inputs "perl")
-                                        "/bin/perl")))
+                         (search-input-file inputs "/bin/perl")))
 
                       (substitute* "src/lib/Gitolite/Common.pm"
                         (("\"ssh-keygen")
@@ -1759,10 +1756,8 @@ history.  It implements the changeset evolution concept for Mercurial.")
          (modify-phases %standard-phases
            (add-after 'unpack 'patch-paths
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((gpg (string-append (assoc-ref inputs "gnupg")
-                                       "/bin/gpg"))
-                   (openssl (string-append (assoc-ref inputs "openssl")
-                                           "/bin/openssl")))
+             (let ((gpg (search-input-file inputs "/bin/gpg"))
+                   (openssl (search-input-file inputs "/bin/openssl")))
                (substitute* "commitsigs.py"
                  (("b'gpg',") (string-append "b'" gpg "',"))
                  (("b'openssl',") (string-append "b'" openssl "',")))))))
@@ -2505,7 +2500,7 @@ by rclone usable with git-annex.")
 (define-public fossil
   (package
     (name "fossil")
-    (version "2.11")
+    (version "2.14")
     (source
      (origin
        (method url-fetch)
@@ -2513,7 +2508,7 @@ by rclone usable with git-annex.")
               "https://www.fossil-scm.org/index.html/uv/"
               "fossil-src-" version ".tar.gz"))
        (sha256
-        (base32 "0c9nzx42wxfmym9vf1pnbdb1c7gp7a7zqky60izxsph7w2xh8nix"))
+        (base32 "1fazl117ph5z7xg7h6w7i32sf7rsa67499rg2llsxn3d34hckl5q"))
        (modules '((guix build utils)))
        (snippet
         '(begin
@@ -2707,8 +2702,7 @@ directory full of HOWTOs.")
                #t))
            (add-before 'install 'patch-git
              (lambda* (#:key inputs #:allow-other-keys)
-               (let ((git (string-append (assoc-ref inputs "git")
-                                         "/bin/git")))
+               (let ((git (search-input-file inputs "/bin/git")))
                  (substitute* "bin/git-when-merged"
                    (("'git'") (string-append "'" git "'")))
                  #t)))
@@ -2716,7 +2710,7 @@ directory full of HOWTOs.")
              (lambda* (#:key outputs #:allow-other-keys)
                (wrap-program (string-append (assoc-ref outputs "out")
                                             "/bin/git-when-merged")
-                 `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH"))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH"))))
                #t)))))
       (inputs
        `(("git" ,git)
@@ -2752,8 +2746,7 @@ how information about the merge is displayed.")
          (delete 'configure)
          (add-before 'install 'patch-git
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((git (string-append (assoc-ref inputs "git")
-                                       "/bin/git")))
+             (let ((git (search-input-file inputs "/bin/git")))
                (substitute* "git-imerge"
                  (("'git'") (string-append "'" git "'")))
                #t)))
@@ -2761,7 +2754,7 @@ how information about the merge is displayed.")
            (lambda* (#:key outputs #:allow-other-keys)
              (wrap-program (string-append (assoc-ref outputs "out")
                                           "/bin/git-imerge")
-               `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH"))))
+               `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH"))))
              #t)))))
     (inputs
      `(("git" ,git)
@@ -3045,11 +3038,10 @@ defects faster.")
                (substitute* "tests/test_main.py"
                  (("'gita\\\\n'") "'source\\n'")
                  (("'gita'") "'source'"))
-               (invoke (string-append (assoc-ref inputs "git") "/bin/git")
+               (invoke (search-input-file inputs "/bin/git")
                        "init")
                (add-installed-pythonpath inputs outputs)
-               (invoke (string-append (assoc-ref inputs "python-pytest")
-                                      "/bin/pytest")
+               (invoke (search-input-file inputs "/bin/pytest")
                        "-vv" "tests")))
            (add-after 'install 'install-shell-completions
              (lambda* (#:key outputs #:allow-other-keys)
diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 399327741f..7ae5c62a58 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -205,10 +205,14 @@
     (arguments
      `(#:configure-flags
        (list
-        "--enable-libv4l2"
+        ;; XXX: Broken API.
+        ;; Undeclared variables 'sys_nerr' and 'sys_errlist'.
+        ;; "--enable-libv4l2"
         "--enable-libmpeg2"
         "--enable-libmpeg2convert"
-        "--enable-v4l"
+        ;; XXX: Broken API.
+        ;; Undeclared variables 'sys_nerr' and 'sys_errlist'.
+        ;; "--enable-v4l"
         ;;; XXX: Not available.
         ;"--enable-bktr"
         ;"--enable-sunau"
@@ -270,7 +274,7 @@
        ("lzo" ,lzo)
        ("mjepgtools" ,mjpegtools)
        ("sdl" ,sdl)
-       ("v4l-utils" ,v4l-utils)
+       ;; ("v4l-utils" ,v4l-utils)
        ("x11" ,libx11)
        ("x264" ,libx264)
        ("xaw" ,libxaw)
@@ -973,10 +977,8 @@ H.264 (MPEG-4 AVC) video streams.")
              #t)))
          (add-before 'configure 'add-googletest
            (lambda* (#:key inputs #:allow-other-keys)
-             (symlink
-               (string-append (assoc-ref inputs "googletest")
-                              "/include/gtest") "lib/gtest")
-             #t))
+             (symlink (search-input-file inputs "/include/gtest")
+                      "lib/gtest")))
          (replace 'build
            (lambda _
              (let ((-j (list "-j" (number->string (parallel-job-count)))))
@@ -2437,8 +2439,7 @@ other site that youtube-dl supports.")
            ;; Explicitly invoke the input ffmpeg, instead of whichever one
            ;; happens to be in the user's $PATH at run time.
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((ffmpeg (string-append (assoc-ref inputs "ffmpeg")
-                                          "/bin/ffmpeg")))
+             (let ((ffmpeg (search-input-file inputs "/bin/ffmpeg")))
                (substitute* "src/you_get/processor/ffmpeg.py"
                  ;; Don't blindly replace all occurrences of ‘'ffmpeg'’: the
                  ;; same string is also used when sniffing ffmpeg's output.
@@ -4270,7 +4271,7 @@ tools for styling them, including a built-in real-time video preview.")
               (let ((prog (string-append (assoc-ref outputs "out")
                                          "/bin/pitivi")))
                 (wrap-program prog
-                  `("PYTHONPATH" = (,(getenv "PYTHONPATH")))
+                  `("GUIX_PYTHONPATH" = (,(getenv "GUIX_PYTHONPATH")))
                   `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH")))
                   ;; We've only added inputs for what Pitivi deems either
                   ;; necessary or optional.  Let the user's packages take
@@ -4597,9 +4598,8 @@ create smoother and stable videos.")
              (setenv "ZMQDIR"
                      (assoc-ref inputs "zeromq"))
              (setenv "UNITTEST_DIR"
-                     (string-append (assoc-ref inputs "unittest++")
-                                    "/include/UnitTest++"))
-             #t)))))
+                     (search-input-directory inputs
+                                             "include/UnitTest++")))))))
     (home-page "https://openshot.org")
     (synopsis "Video-editing, animation, and playback library")
     (description "OpenShot Library (libopenshot) is a powerful C++ video
diff --git a/gnu/packages/vim.scm b/gnu/packages/vim.scm
index 98e96b331f..cb7090ee0d 100644
--- a/gnu/packages/vim.scm
+++ b/gnu/packages/vim.scm
@@ -109,8 +109,7 @@
            (lambda* (#:key inputs #:allow-other-keys)
              ;; One of the tests tests timezone-dependent functions.
              (setenv "TZDIR"
-                     (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo"))
+                     (search-input-directory inputs "share/zoneinfo"))
 
              ;; Make sure the TERM environment variable is set for the tests
              (setenv "TERM" "xterm")
@@ -772,8 +771,7 @@ refactor Vim in order to:
        (modify-phases %standard-phases
          (add-after 'configure 'reference-nvim
            (lambda* (#:key inputs #:allow-other-keys)
-             (let ((nvim (string-append (assoc-ref inputs "neovim")
-                                        "/bin/nvim")))
+             (let ((nvim (search-input-file inputs "/bin/nvim")))
                ;; This substitution should change one line, and replaces the default
                ;; value in the struct of options with an absolute store reference.
                (substitute* "../source/src/main.c"
diff --git a/gnu/packages/virtualization.scm b/gnu/packages/virtualization.scm
index 1bbcb46b99..b223016d17 100644
--- a/gnu/packages/virtualization.scm
+++ b/gnu/packages/virtualization.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015, 2016, 2017, 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2016, 2017, 2018. 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016, 2017 Ricardo Wurmus <rekado@elephly.net>
@@ -247,7 +247,7 @@
          ;; Configure, build and install QEMU user-emulation static binaries.
          (add-after 'configure 'configure-user-static
            (lambda* (#:key inputs outputs #:allow-other-keys)
-             (let* ((gcc (string-append (assoc-ref inputs "gcc") "/bin/gcc"))
+             (let* ((gcc (search-input-file inputs "/bin/gcc"))
                     (static (assoc-ref outputs "static"))
                     ;; This is the common set of configure flags; it is
                     ;; duplicated here to isolate this phase from manipulations
@@ -333,8 +333,7 @@ exec smbd $@")))
                      ("perl" ,perl)
                      ("flex" ,flex)
                      ("bison" ,bison)
-                     ;; Using meson 0.57.1 enables reproducible QEMU builds.
-                     ("meson" ,meson-next)
+                     ("meson" ,meson)
                      ("ninja" ,ninja)
                      ("pkg-config" ,pkg-config)
                      ("python-wrapper" ,python-wrapper)
@@ -342,7 +341,7 @@ exec smbd $@")))
                      ("texinfo" ,texinfo)
                      ;; The following static libraries are required to build
                      ;; the static output of QEMU.
-                     ("glib-static" ,glib-static)
+                     ("glib:static" ,glib "static")
                      ("pcre:static" ,pcre "static")
                      ("zlib:static" ,zlib "static")))
     (home-page "https://www.qemu.org")
@@ -448,8 +447,7 @@ server and embedded PowerPC, and S390 guests.")
                                        "ganeti-drbd-compat.patch"
                                        "ganeti-os-disk-size.patch"
                                        "ganeti-haskell-pythondir.patch"
-                                       "ganeti-disable-version-symlinks.patch"
-                                       "ganeti-preserve-PYTHONPATH.patch"))))
+                                       "ganeti-disable-version-symlinks.patch"))))
     (build-system gnu-build-system)
     (arguments
      `(#:imported-modules (,@%gnu-build-system-modules
@@ -457,7 +455,6 @@ server and embedded PowerPC, and S390 guests.")
                            (guix build python-build-system))
        #:modules (,@%gnu-build-system-modules
                   ((guix build haskell-build-system) #:prefix haskell:)
-                  ((guix build python-build-system) #:select (python-version))
                   (ice-9 rdelim))
 
        ;; The default test target includes a lot of checks that are only really
@@ -504,8 +501,7 @@ server and embedded PowerPC, and S390 guests.")
              (unless (file-exists? "vcs-version")
                (call-with-output-file "vcs-version"
                  (lambda (port)
-                   (format port "v~a~%" ,version))))
-             #t))
+                   (format port "v~a~%" ,version))))))
          (add-after 'unpack 'patch-absolute-file-names
            (lambda _
              (substitute* '("lib/utils/process.py"
@@ -531,8 +527,7 @@ server and embedded PowerPC, and S390 guests.")
                (("ndisc6") (which "ndisc6"))
                (("fping") (which "fping"))
                (("grep") (which "grep"))
-               (("ip addr") (string-append (which "ip") " addr")))
-             #t))
+               (("ip addr") (string-append (which "ip") " addr")))))
          (add-after 'unpack 'override-builtin-PATH
            (lambda _
              ;; Ganeti runs OS install scripts and similar with a built-in
@@ -540,8 +535,7 @@ server and embedded PowerPC, and S390 guests.")
              (substitute* "src/Ganeti/Constants.hs"
                (("/sbin:/bin:/usr/sbin:/usr/bin")
                 "/run/setuid-programs:/run/current-system/profile/sbin:\
-/run/current-system/profile/bin"))
-             #t))
+/run/current-system/profile/bin"))))
          (add-after 'bootstrap 'patch-sphinx-version-detection
            (lambda _
              ;; The build system runs 'sphinx-build --version' to verify that
@@ -549,8 +543,8 @@ server and embedded PowerPC, and S390 guests.")
              ;; .sphinx-build-real executable name created by the Sphinx wrapper.
              (substitute* "configure"
                (("\\$SPHINX --version 2>&1")
-                "$SPHINX --version 2>&1 | sed 's/.sphinx-build-real/sphinx-build/g'"))
-             #t))
+                "$SPHINX --version 2>&1 \
+| sed 's/.sphinx-build-real/sphinx-build/g'"))))
 
          ;; The build system invokes Cabal and GHC, which do not work with
          ;; GHC_PACKAGE_PATH: <https://github.com/haskell/cabal/issues/3728>.
@@ -564,13 +558,11 @@ server and embedded PowerPC, and S390 guests.")
                (("\\$\\(CABAL\\)")
                 "$(CABAL) --package-db=../package.conf.d")
                (("\\$\\(GHC\\)")
-                "$(GHC) -package-db=../package.conf.d"))
-             #t))
+                "$(GHC) -package-db=../package.conf.d"))))
          (add-after 'configure 'make-ghc-use-shared-libraries
            (lambda _
              (substitute* "Makefile"
-               (("HFLAGS =") "HFLAGS = -dynamic -fPIC"))
-             #t))
+               (("HFLAGS =") "HFLAGS = -dynamic -fPIC"))))
          (add-after 'configure 'fix-installation-directories
            (lambda _
              (substitute* "Makefile"
@@ -580,8 +572,7 @@ server and embedded PowerPC, and S390 guests.")
                ;; Similarly, do not attempt to install the sample ifup scripts
                ;; to /etc/ganeti.
                (("\\$\\(DESTDIR\\)\\$\\(ifupdir\\)")
-                "$(DESTDIR)${prefix}$(ifupdir)"))
-             #t))
+                "$(DESTDIR)${prefix}$(ifupdir)"))))
          (add-before 'build 'adjust-tests
            (lambda _
              ;; Disable tests that can not run.  Do it early to prevent
@@ -600,36 +591,14 @@ server and embedded PowerPC, and S390 guests.")
                 "")
                ;; This test requires networking.
                (("test/py/import-export_unittest\\.bash")
-                ""))
-
-             ;; Many of the Makefile targets reset PYTHONPATH before running
-             ;; the Python interpreter, which does not work very well for us.
-             (substitute* "Makefile"
-               (("PYTHONPATH=")
-                (string-append "PYTHONPATH=" (getenv "PYTHONPATH") ":")))
-             #t))
+                ""))))
          (add-after 'build 'build-bash-completions
            (lambda _
-             (let ((orig-pythonpath (getenv "PYTHONPATH")))
-               (setenv "PYTHONPATH" (string-append ".:" orig-pythonpath))
-               (invoke "./autotools/build-bash-completion")
-               (setenv "PYTHONPATH" orig-pythonpath)
-               #t)))
+             (invoke "python" "-m" "./autotools/build-bash-completion")))
          (add-before 'check 'pre-check
            (lambda* (#:key inputs #:allow-other-keys)
              ;; Set TZDIR so that time zones are found.
-             (setenv "TZDIR" (string-append (assoc-ref inputs "tzdata")
-                                            "/share/zoneinfo"))
-
-             ;; This test checks whether PYTHONPATH is untouched, and extends
-             ;; it to include test directories if so.  Add an else branch for
-             ;; our modified PYTHONPATH, in order to prevent a confusing test
-             ;; failure where expired certificates are not cleaned because
-             ;; check-cert-expired is silently crashing.
-             (substitute* "test/py/ganeti-cleaner_unittest.bash"
-               (("then export PYTHONPATH=(.*)" all testpath)
-                (string-append all "else export PYTHONPATH="
-                               (getenv "PYTHONPATH") ":" testpath "\n")))
+             (setenv "TZDIR" (search-input-directory inputs "share/zoneinfo"))
 
              (substitute* "test/py/ganeti.utils.process_unittest.py"
                ;; This test attempts to run an executable with
@@ -652,8 +621,7 @@ server and embedded PowerPC, and S390 guests.")
                (for-each (lambda (file)
                            (symlink "../../src/htools" file))
                          '("hspace" "hscan" "hinfo" "hbal" "hroller"
-                           "hcheck" "hail" "hsqueeze")))
-             #t))
+                           "hcheck" "hail" "hsqueeze")))))
          (add-after 'install 'install-bash-completions
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
@@ -682,21 +650,15 @@ server and embedded PowerPC, and S390 guests.")
                                       (cons (basename (car (reverse (string-split
                                                                      line #\ ))))
                                             progs))
-                                (loop (read-line port) progs))))))))
-               #t)))
-         ;; Wrap all executables with PYTHONPATH.  We can't borrow the phase
-         ;; from python-build-system because we also need to wrap the scripts
-         ;; in $out/lib/ganeti such as "node-daemon-setup".
+                                (loop (read-line port) progs)))))))))))
+         ;; Wrap all executables with GUIX_PYTHONPATH.  We can't borrow
+         ;; the phase from python-build-system because we also need to wrap
+         ;; the scripts in $out/lib/ganeti such as "node-daemon-setup".
          (add-after 'install 'wrap
-           (lambda* (#:key inputs outputs #:allow-other-keys)
+           (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
                     (sbin (string-append out "/sbin"))
-                    (lib (string-append out "/lib"))
-                    (python (assoc-ref inputs "python"))
-                    (major+minor (python-version python))
-                    (PYTHONPATH (string-append lib "/python" major+minor
-                                               "/site-packages:"
-                                               (getenv "PYTHONPATH"))))
+                    (lib (string-append out "/lib")))
                (define (shell-script? file)
                  (call-with-ascii-input-file file
                    (lambda (port)
@@ -717,11 +679,11 @@ server and embedded PowerPC, and S390 guests.")
 
                (for-each (lambda (file)
                            (wrap-program file
-                             `("PYTHONPATH" ":" prefix (,PYTHONPATH))))
+                             `("GUIX_PYTHONPATH" ":" prefix
+                               (,(getenv "GUIX_PYTHONPATH")))))
                          (filter wrap?
                                  (append (find-files (string-append lib "/ganeti"))
-                                         (find-files sbin))))
-               #t))))))
+                                         (find-files sbin))))))))))
     (native-inputs
      `(("haskell" ,ghc)
        ("cabal" ,cabal-install)
@@ -1101,7 +1063,6 @@ It started as a side project of LXC but can be used by any run-time.")
              (string-append "-Dinstall_prefix=" (assoc-ref %outputs "out"))
              "--sysconfdir=/etc"
              "--localstatedir=/var")
-       #:meson ,meson-0.55
        #:phases
        (modify-phases %standard-phases
          (add-after 'unpack 'skip-directory-confusion
@@ -1278,8 +1239,8 @@ virtualization library.")
            (lambda* (#:key inputs #:allow-other-keys)
              ;; Xen is not available for now - so only patch qemu.
              (substitute* "virtManager/createconn.py"
-               (("/usr(/bin/qemu-system)" _ suffix)
-                (string-append (assoc-ref inputs "qemu") suffix)))
+               (("/usr(/bin/qemu-system-[a-zA-Z0-9_-]+)" _ suffix)
+                (search-input-file inputs suffix)))
              #t))
          (add-before 'wrap 'wrap-with-GI_TYPELIB_PATH
            (lambda* (#:key inputs outputs #:allow-other-keys)
@@ -1386,10 +1347,9 @@ domains, their live performance and resource utilization statistics.")
            (lambda* (#:key inputs #:allow-other-keys)
              ;; The includes for libnl are located in a sub-directory.
              (setenv "C_INCLUDE_PATH"
-                     (string-append (assoc-ref inputs "libnl")
-                                    "/include/libnl3:"
-                                    (or (getenv "C_INCLUDE_PATH") "")))
-             #t))
+                     (string-append
+                      (search-input-directory inputs "/include/libnl3")
+                      ":" (or (getenv "C_INCLUDE_PATH") "")))))
          (add-after 'configure 'fix-documentation
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (substitute* "Documentation/Makefile"
@@ -1411,17 +1371,16 @@ domains, their live performance and resource utilization statistics.")
                (("\\$\\(PYTHON\\)") "python2"))
              (substitute* "lib/Makefile"
                (("\\$\\(PYTHON\\)")
-                (string-append (assoc-ref inputs "python")
-                               "/bin/python")))
-             #t))
+                (search-input-file inputs "/bin/python")))))
          (add-before 'build 'fix-symlink
            (lambda* (#:key inputs #:allow-other-keys)
              ;; The file 'images/google/protobuf/descriptor.proto' points to
              ;; /usr/include/..., which obviously does not exist.
              (let* ((file "google/protobuf/descriptor.proto")
                     (target (string-append "images/" file))
-                    (source (string-append (assoc-ref inputs "protobuf")
-                                           "/include/" file)))
+                    (source (search-input-file
+                             inputs
+                             (string-append "include/" file))))
                (delete-file target)
                (symlink source target)
                #t)))
@@ -1434,9 +1393,9 @@ domains, their live performance and resource utilization statistics.")
                                          (string-take (string-take-right
                                                        (assoc-ref inputs "python") 5) 3)
                                          "/site-packages:"
-                                         (getenv "PYTHONPATH"))))
+                                         (or (getenv "GUIX_PYTHONPATH") ""))))
                (wrap-program (string-append out "/bin/crit")
-                 `("PYTHONPATH" ":" prefix (,path))))
+                 `("GUIX_PYTHONPATH" ":" prefix (,path))))
              #t)))))
     (inputs
      `(("protobuf" ,protobuf)
diff --git a/gnu/packages/vpn.scm b/gnu/packages/vpn.scm
index 330a3271b4..852d0038c7 100644
--- a/gnu/packages/vpn.scm
+++ b/gnu/packages/vpn.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
-;;; Copyright © 2013, 2016, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2016, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2015 Jeff Mickey <j@codemac.net>
 ;;; Copyright © 2016, 2017, 2019, 2021 Efraim Flashner <efraim@flashner.co.il>
@@ -323,7 +323,7 @@ endpoints.")
                                "/bin/" command)))
              (substitute* "src/libstrongswan/utils/process.c"
                (("/bin/sh")
-                (string-append (assoc-ref inputs "bash") "/bin/sh")))
+                (search-input-file inputs "/bin/sh")))
 
              (substitute* "src/libstrongswan/tests/suites/test_process.c"
                (("/bin/sh") (which "sh"))
@@ -332,9 +332,8 @@ endpoints.")
              #t))
          (add-before 'check 'set-up-test-environment
            (lambda* (#:key inputs #:allow-other-keys)
-             (setenv "TZDIR" (string-append (assoc-ref inputs "tzdata")
-                                            "/share/zoneinfo"))
-             #t)))
+             (setenv "TZDIR"
+                     (search-input-directory inputs "share/zoneinfo")))))
        #:configure-flags
        (list
         "--disable-ldap"
@@ -531,10 +530,12 @@ Only \"Universal TUN/TAP device driver support\" is needed in the kernel.")
              ;; Wrap scripts with paths to their common hard dependencies.
              ;; Optional dependencies will need to be installed by the user.
              (lambda* (#:key inputs outputs #:allow-other-keys)
-               (let ((out (assoc-ref outputs "out")))
+               (let ((out (assoc-ref outputs "out"))
+                     (guile (search-input-file inputs "bin/guile")))
                  (for-each
                   (lambda (script)
                     (wrap-script (string-append out "/etc/vpnc/" script)
+                      #:guile guile
                       `("PATH" ":" prefix
                         ,(map (lambda (name)
                                 (let ((input (assoc-ref inputs name)))
@@ -663,6 +664,7 @@ and probably others.")
                                        (assoc-ref inputs "qtwebengine")
                                        "/lib/qt5/libexec/QtWebEngineProcess")))
                (wrap-program bin
+                 #:sh (search-input-file inputs "bin/bash")
                  `("QTWEBENGINEPROCESS_PATH" = (,qt-process-path)))
                #t))))))
     (inputs
@@ -776,6 +778,7 @@ traversing network address translators (@dfn{NAT}s) and firewalls.")
              (let ((entrypoint (string-append (assoc-ref outputs "out")
                                               "/bin/.protonvpn-real")))
                (wrap-program entrypoint
+                            #:sh (search-input-file inputs "bin/bash")
                             `("PATH" ":" prefix
                               ,(map (lambda (name)
                                       (let ((input (assoc-ref inputs name)))
@@ -1061,6 +1064,7 @@ WireGuard was added to Linux 5.6.")
                    (coreutils (string-append (assoc-ref inputs "coreutils")
                                              "/bin")))
                (wrap-program (string-append out "/bin/wg-quick")
+                 #:sh (search-input-file inputs "bin/bash")
                  `("PATH" ":" prefix ,(append inputs-sbin
                                               (list coreutils))))
                #t))))))
@@ -1111,8 +1115,7 @@ public keys and can roam across IP addresses.")
                     (lambda* (#:key inputs #:allow-other-keys)
                       (substitute* "l2tp.h"
                         (("/usr/sbin/pppd")
-                         (string-append (assoc-ref inputs "ppp")
-                                        "/sbin/pppd")))
+                         (search-input-file inputs "/sbin/pppd")))
                       (setenv "KERNELSRC"
                               (assoc-ref inputs "linux-libre-headers"))
                       #t)))
diff --git a/gnu/packages/w3m.scm b/gnu/packages/w3m.scm
index 934a6d9e38..a14ca02e84 100644
--- a/gnu/packages/w3m.scm
+++ b/gnu/packages/w3m.scm
@@ -5,6 +5,7 @@
 ;;; Copyright © 2016, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018 Rutger Helling <rhelling@mykolab.com>
 ;;; Copyright © 2020 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -27,6 +28,7 @@
   #:use-module (gnu packages bdw-gc)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages gtk)
+  #:use-module (gnu packages image)
   #:use-module (gnu packages ncurses)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
@@ -40,7 +42,7 @@
 (define-public w3m
   (package
     (name "w3m")
-    (version "0.5.3+git20200502")
+    (version "0.5.3+git20210102")
     (source (origin
               (method git-fetch)
               ;; Debian's fork of w3m is the only one that is still maintained.
@@ -50,21 +52,22 @@
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "0yyfhwcwy1dvdbirj6zqwk4gl8z9npfavs0k7ipcg5fd16vnx7mi"))))
+                "0amq1wfjp5mhqjmvrc0yhxjlx1335p78d7ap8iykfjn5h8yhmrg5"))))
     (build-system gnu-build-system)
     (arguments
      '(#:tests? #f  ; no check target
        ;; Use $EDITOR instead of a hard-coded value.
-       #:configure-flags '("--with-editor=")
+       #:configure-flags (list "--with-editor="
+                               "--with-imagelib=imlib2")
        #:phases
        (modify-phases %standard-phases
          (add-before 'configure 'fix-perl
            (lambda _ (substitute* '("scripts/w3mmail.cgi.in"
                                     "scripts/dirlist.cgi.in")
-                       (("@PERL@") (which "perl")))
-             #t)))))
+                       (("@PERL@") (which "perl"))))))))
     (inputs
      `(("gdk-pixbuf" ,gdk-pixbuf)
+       ("imlib2" ,imlib2)
        ("libgc" ,libgc)
        ("libx11" ,libx11)
        ("ncurses" ,ncurses)
diff --git a/gnu/packages/web.scm b/gnu/packages/web.scm
index c59c4abb13..be6af8df38 100644
--- a/gnu/packages/web.scm
+++ b/gnu/packages/web.scm
@@ -47,6 +47,7 @@
 ;;; Copyright © 2020 Michael Rohleder <mike@rohleder.de>
 ;;; Copyright © 2020, 2021 Ryan Prior <rprior@protonmail.com>
 ;;; Copyright © 2020 Alexandru-Sergiu Marton <brown121407@posteo.ro>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2021 Stefan Reichör <stefan@xsteve.at>
 ;;; Copyright © 2021 la snesne <lasnesne@lagunposprasihopre.org>
 ;;; Copyright © 2021 Matthew James Kraai <kraai@ftbfs.org>
@@ -973,7 +974,7 @@ libraries for working with JNLP applets.")
 (define-public jansson
   (package
     (name "jansson")
-    (version "2.12")
+    (version "2.13.1")
     (source (origin
              (method url-fetch)
              (uri
@@ -981,7 +982,7 @@ libraries for working with JNLP applets.")
                              version ".tar.bz2"))
              (sha256
               (base32
-               "1lp1mv8pjp5yziws66cy0dhpcam4bbjqhffk13v4vgdybp674pb4"))))
+               "1g8h18vh8gyxlwfmvdivdp1siad26ywj5zr4j4avgdyjg7wa147f"))))
     (build-system gnu-build-system)
     (arguments
      `(#:configure-flags '("--disable-static")))
@@ -3853,16 +3854,14 @@ and IPv6 sockets, intended as a replacement for IO::Socket::INET.")
 (define-public perl-io-socket-ssl
   (package
     (name "perl-io-socket-ssl")
-    (version "2.066")
+    (version "2.068")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://cpan/authors/id/S/SU/SULLR/"
                                   "IO-Socket-SSL-" version ".tar.gz"))
               (sha256
                (base32
-                "1kgbws7dwp2hh16qid7169dfkhmcwg7dz9ffbm6k0id5h53hciqd"))
-              (patches (search-patches
-                        "perl-io-socket-ssl-openssl-1.0.2f-fix.patch"))))
+                "1ycgzg1l7p07y5wc0vzgnj122vm51p5aqpi4s56pp0piaq0gq824"))))
     (build-system perl-build-system)
     (propagated-inputs
      `(("perl-net-ssleay" ,perl-net-ssleay)
@@ -4482,14 +4481,14 @@ applications.")
 (define-public perl-uri
   (package
     (name "perl-uri")
-    (version "1.76")
+    (version "5.05")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://cpan/authors/id/O/OA/OALDERS/"
                                  "URI-" version ".tar.gz"))
              (sha256
               (base32
-               "0gj1aj18k43kmzc3y1zhj5giinf8rksacf757r475xfna0fqxjdj"))))
+               "1v3r3ck67w272kzfgm1nd3wb41av1hlnza56vkxxj1i7s3917hd5"))))
     (build-system perl-build-system)
     (native-inputs
      ;; For tests.
@@ -5728,7 +5727,7 @@ w3c webidl files and a binding configuration file.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* '("test/bloom.c" "test/hashtable.c")
                (("/usr/share/dict/words")
-                (string-append (assoc-ref inputs "miscfiles") "/share/web2")))
+                (search-input-file inputs "/share/web2")))
              #t))
          (add-after 'install 'install-more
            (lambda* (#:key outputs #:allow-other-keys)
@@ -6606,9 +6605,8 @@ Instagram and YouTube.")
      `(#:phases
        (modify-phases %standard-phases
          (replace 'check
-           (lambda* (#:key inputs outputs tests? #:allow-other-keys)
+           (lambda* (#:key tests? #:allow-other-keys)
              (when tests?
-               (add-installed-pythonpath inputs outputs)
                (invoke "py.test" "tests")))))))
     (home-page "https://linkchecker.github.io/linkchecker/")
     (synopsis "Check websites for broken links")
@@ -7611,7 +7609,7 @@ derivation by David Revoy from the original MonsterID by Andreas Gohr.")
 (define-public nghttp2
   (package
     (name "nghttp2")
-    (version "1.41.0")
+    (version "1.44.0")
     (source
      (origin
        (method url-fetch)
@@ -7620,7 +7618,7 @@ derivation by David Revoy from the original MonsterID by Andreas Gohr.")
                            "nghttp2-" version ".tar.xz"))
        (sha256
         (base32
-         "1hk77vngjmvvzb5y1gi1aqwf6qywrc7yak08zvzb7x81qs6mphmb"))))
+         "0p9wvva4g8hwj55x19rbyvnq2dbsnf65rphhxnpqs7ll54xlg6an"))))
     (build-system gnu-build-system)
     (outputs (list "out"
                    "lib"))              ; only libnghttp2
@@ -7629,6 +7627,7 @@ derivation by David Revoy from the original MonsterID by Andreas Gohr.")
 
        ;; Required by tests.
        ("cunit" ,cunit)
+       ("python" ,python)
        ("tzdata" ,tzdata-for-tests)))
     (inputs
      ;; Required to build the tools (i.e. without ‘--enable-lib-only’).
diff --git a/gnu/packages/wget.scm b/gnu/packages/wget.scm
index 8891170e10..58b3330293 100644
--- a/gnu/packages/wget.scm
+++ b/gnu/packages/wget.scm
@@ -45,7 +45,7 @@
 (define-public wget
   (package
     (name "wget")
-    (version "1.20.3")
+    (version "1.21.1")
     (source
      (origin
       (method url-fetch)
@@ -53,7 +53,7 @@
                           version ".tar.lz"))
       (sha256
        (base32
-        "1frajd86ds8vz2hprq30wq8ya89z9dcxnwm8nwk12bbc47l7qq39"))))
+        "1bchzkacjsc5c0x01ngaana9fs5j12wfw1c8qxps1yp68x9vx6yv"))))
     (build-system gnu-build-system)
     (inputs
      `(("gnutls" ,gnutls)
diff --git a/gnu/packages/wicd.scm b/gnu/packages/wicd.scm
index fec39ad530..073d440479 100644
--- a/gnu/packages/wicd.scm
+++ b/gnu/packages/wicd.scm
@@ -123,7 +123,10 @@
                        "--no-install-kde"
                        "--no-install-gnome-shell-extensions"
 
-                       "--distro=guixsd"
+                       ;; Don't pass --distro= despite setup.py's complaints.
+                       ;; Guix isn't recognised, and if it ever would be we'd
+                       ;; rather ask upstream to follow standards instead.
+
                        "--wicdgroup=netdev"
                        "--loggroup=root"
                        "--logperms=0640"
diff --git a/gnu/packages/wine.scm b/gnu/packages/wine.scm
index 5c6d02eec5..d05b5c1b8c 100644
--- a/gnu/packages/wine.scm
+++ b/gnu/packages/wine.scm
@@ -417,10 +417,10 @@ integrate Windows applications into your desktop.")
                     (let* ((out (assoc-ref outputs "out"))
                            (icd (string-append out "/share/vulkan/icd.d")))
                       (mkdir-p icd)
-                      (copy-file (string-append (assoc-ref inputs "mesa")
+                      (copy-file (search-input-file inputs
                                  "/share/vulkan/icd.d/radeon_icd.i686.json")
                                  (string-append icd "/radeon_icd.i686.json"))
-                      (copy-file (string-append (assoc-ref inputs "mesa")
+                      (copy-file (search-input-file inputs
                                  "/share/vulkan/icd.d/intel_icd.i686.json")
                                  (string-append icd "/intel_icd.i686.json"))
                       (wrap-program (string-append out "/bin/wine-preloader")
diff --git a/gnu/packages/wm.scm b/gnu/packages/wm.scm
index 920a7cbb3e..66440e5008 100644
--- a/gnu/packages/wm.scm
+++ b/gnu/packages/wm.scm
@@ -8,7 +8,7 @@
 ;;; Copyright © 2016, 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Al McElrath <hello@yrns.org>
 ;;; Copyright © 2016 Carlo Zancanaro <carlo@zancanaro.id.au>
-;;; Copyright © 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016, 2017, 2018, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016, 2017, 2018, 2020 Nikita <nikita@n0.is>
 ;;; Copyright © 2016 doncatnip <gnopap@gmail.com>
 ;;; Copyright © 2016 Ivan Vilata i Balaguer <ivan@selidor.net>
@@ -613,14 +613,10 @@ Features include:
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
                     (icons (string-append out "/share/i3lock-fancy/icons/"))
-                    (wmctrl (string-append (assoc-ref inputs "wmctrl")
-                                           "/bin/wmctrl"))
-                    (mconvert (string-append (assoc-ref inputs "imagemagick")
-                                             "/bin/convert"))
-                    (mimport (string-append (assoc-ref inputs "imagemagick")
-                                            "/bin/import"))
-                    (awk (string-append (assoc-ref inputs "gawk")
-                                        "/bin/gawk")))
+                    (wmctrl (search-input-file inputs "/bin/wmctrl"))
+                    (mconvert (search-input-file inputs "/bin/convert"))
+                    (mimport (search-input-file inputs "/bin/import"))
+                    (awk (search-input-file inputs "/bin/gawk")))
 
                (substitute* "lock"
                  (("\\$\\(command -V wmctrl\\)") wmctrl)
@@ -923,9 +919,7 @@ experience.")
                (base32
                 "1xaz13iry3fdjhqk9xzg29kbv7hqj8dzzqxr5mhrj8f2m013jdc3"))))
     (build-system meson-build-system)
-    (arguments
-     `( #:meson ,meson-0.55
-        #:build-type "release"))
+    (arguments `(#:build-type "release"))
     (native-inputs
      `(("pkg-config" ,pkg-config)
        ("wayland-protocols" ,wayland-protocols)
@@ -1427,7 +1421,7 @@ functionality to display information about the most commonly used services.")
 (define-public wlroots
   (package
     (name "wlroots")
-    (version "0.12.0")
+    (version "0.13.0")
     (source
      (origin
        (method git-fetch)
@@ -1436,11 +1430,10 @@ functionality to display information about the most commonly used services.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "01j38lmgs2c6fq68v8b75pkilia2wsgzgp46ivfbi9hhx47kgcfn"))))
+        (base32 "01plhbnsp5yg18arz0v8fr0pr9l4w4pdzwkg9px486qdvb3s1vgy"))))
     (build-system meson-build-system)
     (arguments
      `(#:configure-flags '("-Dlogind-provider=elogind")
-       #:meson ,meson-0.55
        #:phases
        (modify-phases %standard-phases
          (add-before 'configure 'hardcode-paths
@@ -1475,7 +1468,7 @@ modules for building a Wayland compositor.")
 (define-public sway
   (package
     (name "sway")
-    (version "1.5.1")
+    (version "1.6")
     (source
      (origin
        (method git-fetch)
@@ -1484,7 +1477,7 @@ modules for building a Wayland compositor.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "1xsa3h8zhf29p0mi90baxpr76jkd9pd1gr97ky8cnjbcs4isj9j0"))))
+        (base32 "0vnplva11yafhbijrk68wy7pw0psn9jm0caaymswq1s951xsn1c8"))))
     (build-system meson-build-system)
     (arguments
      `(#:phases
@@ -1630,8 +1623,7 @@ modules for building a Wayland compositor.")
               ("spdlog" ,spdlog)
               ("wayland" ,wayland)))
     (native-inputs
-     `(("gcc" ,gcc-8)                   ; for #include <filesystem>
-       ("glib:bin" ,glib "bin")
+     `(("glib:bin" ,glib "bin")
        ("pkg-config" ,pkg-config)
        ("scdoc" ,scdoc)
        ("wayland-protocols" ,wayland-protocols)))
diff --git a/gnu/packages/wxwidgets.scm b/gnu/packages/wxwidgets.scm
index 54d385fd53..475b5efe15 100644
--- a/gnu/packages/wxwidgets.scm
+++ b/gnu/packages/wxwidgets.scm
@@ -100,8 +100,7 @@
        (modify-phases %standard-phases
          (add-after 'unpack 'refer-to-inputs
            (lambda* (#:key inputs #:allow-other-keys)
-             (let* ((mime (string-append (assoc-ref inputs "shared-mime-info")
-                                         "/share/mime")))
+             (let* ((mime (search-input-directory inputs "/share/mime")))
                (substitute* "src/unix/utilsx11.cpp"
                  (("wxExecute\\(xdg_open \\+")
                   (string-append "wxExecute(\"" (which "xdg-open") "\"")))
@@ -216,7 +215,7 @@ and many other languages.")
              (setenv "WXWIN" (assoc-ref inputs "wxwidgets"))
              ;; Copy the waf executable to the source directory since it needs
              ;; to be in a writable directory.
-             (copy-file (string-append (assoc-ref inputs "python-waf") "/bin/waf")
+             (copy-file (search-input-file inputs "/bin/waf")
                         "bin/waf")
              (setenv "WAF" "bin/waf")
              ;; The build script tries to copy license files from the
@@ -306,8 +305,9 @@ provide a 100% native look and feel for the application.")
              (setenv "WXWIN" (assoc-ref inputs "wxwidgets"))
              (use-modules (ice-9 popen) (ice-9 rdelim))
              (let ((port (open-pipe* OPEN_READ
-                                     (string-append (assoc-ref inputs "wxwidgets")
-                                                    "/bin/wx-config") "--cppflags")))
+                                     (search-input-file inputs
+                                                        "/bin/wx-config")
+                                     "--cppflags")))
                (setenv "CPPFLAGS" (read-string port))
                (close-pipe port))
              #t)))))
diff --git a/gnu/packages/xdisorg.scm b/gnu/packages/xdisorg.scm
index 22f29c93be..d13392ae77 100644
--- a/gnu/packages/xdisorg.scm
+++ b/gnu/packages/xdisorg.scm
@@ -3,7 +3,7 @@
 ;;; Copyright © 2014, 2015, 2016 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2014, 2015, 2016 Alex Kost <alezost@gmail.com>
-;;; Copyright © 2013, 2015, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2015, 2017, 2018, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015, 2016 Mathieu Lirzin <mthl@gnu.org>
 ;;; Copyright © 2015 Alexander I.Grafov <grafov@gmail.com>
 ;;; Copyright © 2015 Andy Wingo <wingo@igalia.com>
@@ -32,7 +32,7 @@
 ;;; Copyright © 2020, 2021 Guillaume Le Vaillant <glv@posteo.net>
 ;;; Copyright © 2020 David Wilson <david@daviwil.com>
 ;;; Copyright © 2020 Ivan Vilata i Balaguer <ivan@selidor.net>
-;;; Copyright © 2020 Brice Waegeneire <brice@waegenei.re>
+;;; Copyright © 2020, 2021 Brice Waegeneire <brice@waegenei.re>
 ;;; Copyright © 2020 Damien Cassou <damien@cassou.me>
 ;;; Copyright © 2020 John Soo <jsoo1@asu.edu>
 ;;; Copyright © 2020 Boris A. Dekshteyn <boris.dekshteyn@gmail.com>
@@ -43,6 +43,7 @@
 ;;; Copyright © 2020 James Smith <jsubuntuxp@disroot.org>
 ;;; Copyright © 2020 B. Wilson <elaexuotee@wilsonb.com>
 ;;; Copyright © 2020, 2021 Zheng Junjie <873216071@qq.com>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2021 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
 ;;; Copyright © 2021 Renzo Poddighe <renzo@poddighe.nl>
@@ -230,8 +231,7 @@ program.")
        (modify-phases %standard-phases
          (add-before 'build 'configure
            (lambda* (#:key inputs outputs #:allow-other-keys)
-             (let ((xrandr (string-append (assoc-ref inputs "xrandr")
-                                          "/bin/xrandr")))
+             (let ((xrandr (search-input-file inputs "/bin/xrandr")))
                (substitute* "contrib/etc/xdg/autostart/autorandr.desktop"
                  (("/usr") (assoc-ref outputs "out")))
                (substitute* "autorandr.py"
@@ -420,14 +420,14 @@ avoiding password prompts when X11 forwarding has already been setup.")
 (define-public libxkbcommon
   (package
     (name "libxkbcommon")
-    (version "1.0.3")
+    (version "1.3.0")
     (source (origin
              (method url-fetch)
              (uri (string-append "https://xkbcommon.org/download/libxkbcommon-"
                                  version ".tar.xz"))
              (sha256
               (base32
-               "0lmwglj16anhpaq0h830xsl1ivknv75i4lir9bk88aq73s2jy852"))))
+               "0ysynzzgzd9jdrh1321r4bgw8wd5zljrlyn5y1a31g39xacf02bv"))))
     (build-system meson-build-system)
     (inputs
      `(("libx11" ,libx11)
@@ -603,7 +603,7 @@ following the mouse.")
 (define-public pixman
   (package
     (name "pixman")
-    (version "0.38.4")
+    (version "0.40.0")
     (source
      (origin
        (method url-fetch)
@@ -612,13 +612,17 @@ following the mouse.")
          "https://www.cairographics.org/releases/pixman-"
          version ".tar.gz"))
        (sha256
-        (base32 "1ryxzdf048x7wsx4dlvrr1p00gzwfs7lybnhgc7ygbj0dvyxcrns"))
+        (base32 "1z13n96m7x91j25qq9wlkxsbq04wfwjhw66ir17frna06zn0s83d"))
        (patches
         (search-patches
          "pixman-CVE-2016-5296.patch"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:configure-flags '("--disable-static")))
+     `(#:configure-flags
+       (list
+        "--disable-static"
+        "--enable-timers"
+        "--enable-gnuplot")))
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (inputs
@@ -629,12 +633,12 @@ following the mouse.")
 manipulation, providing features such as image compositing and trapezoid
 rasterisation.")
     (home-page "http://www.pixman.org/")
-    (license license:x11)))
+    (license license:expat)))
 
 (define-public libdrm
   (package
     (name "libdrm")
-    (version "2.4.103")
+    (version "2.4.104")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -642,7 +646,7 @@ rasterisation.")
                     version ".tar.xz"))
               (sha256
                (base32
-                "08h2nnf4w96b4ql7485mvjgbbsb8rwc0qa93fdm1cq34pbyszq1z"))))
+                "1jqvx9c23hgwhq109zqj6vg3ng40pcvh3r1k2fn1a424qasxhsnn"))))
     (build-system meson-build-system)
     (arguments
      `(#:configure-flags
@@ -1383,15 +1387,12 @@ the X.Org X Server version 1.7 and later (X11R7.5 or later).")
          (add-after 'split-outputs 'wrap
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((gtk (assoc-ref outputs "gtk"))
-                    (python-version
-                     (@ (guix build python-build-system) python-version))
-                    (python (assoc-ref inputs "python"))
-                    (sitedir (string-append gtk "/lib/python"
-                                            (python-version python)
-                                            "/site-packages")))
+                    (site-packages (@ (guix build python-build-system)
+                                      site-packages))
+                    (site (site-packages inputs outputs)))
                (wrap-program (string-append gtk "/bin/redshift-gtk")
-                 `("PYTHONPATH" ":" prefix
-                   (,(string-append sitedir ":" (getenv "PYTHONPATH"))))
+                 `("GUIX_PYTHONPATH" ":" prefix
+                   (,(string-append site ":" (getenv "GUIX_PYTHONPATH"))))
                  `("GI_TYPELIB_PATH" ":" prefix (,(getenv "GI_TYPELIB_PATH"))))
                #t))))))
     (outputs '("out" "gtk"))
@@ -2620,10 +2621,12 @@ tools to complement clipnotify.")
                       (gawk              (assoc-ref inputs "gawk"))
                       (util-linux        (assoc-ref inputs "util-linux"))
                       (xdotool           (assoc-ref inputs "xdotool"))
-                      (xsel              (assoc-ref inputs "xsel")))
+                      (xsel              (assoc-ref inputs "xsel"))
+                      (guile             (search-input-file inputs "bin/guile")))
                  (for-each
                   (lambda (prog)
                     (wrap-script (string-append out "/bin/" prog)
+                      #:guile guile
                       `("PATH" ":" prefix
                         ,(map (lambda (dir)
                                 (string-append dir "/bin"))
diff --git a/gnu/packages/xfce.scm b/gnu/packages/xfce.scm
index 24091f3bce..4d913d14c6 100644
--- a/gnu/packages/xfce.scm
+++ b/gnu/packages/xfce.scm
@@ -254,7 +254,7 @@ to share commonly used Xfce widgets among the Xfce applications.")
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out")))
                (wrap-program (string-append out "/bin/catfish")
-                 `("PYTHONPATH" = (,(getenv "PYTHONPATH")))
+                 `("GUIX_PYTHONPATH" = (,(getenv "GUIX_PYTHONPATH")))
                  `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH"))))))))
        #:tests? #f))
     (native-inputs
@@ -435,8 +435,7 @@ management D-Bus specification.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* (string-append "plugins/clock/clock.c")
                (("/usr/share/zoneinfo")
-                (string-append (assoc-ref inputs "tzdata") "/share/zoneinfo")))
-             #t)))))
+                (search-input-directory inputs "share/zoneinfo"))))))))
     (native-inputs
      `(("pkg-config" ,pkg-config)
        ("intltool" ,intltool)
diff --git a/gnu/packages/xiph.scm b/gnu/packages/xiph.scm
index fbbcbd6e61..0bc744734e 100644
--- a/gnu/packages/xiph.scm
+++ b/gnu/packages/xiph.scm
@@ -11,6 +11,7 @@
 ;;; Copyright © 2018 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2020 Vincent Legoll <vincent.legoll@gmail.com>
 ;;; Copyright © 2021 Brendan Tildesley <mail@brendan.scot>
+;;; Copyright © 2021 Matthew James Kraai <kraai@ftbfs.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -50,14 +51,14 @@
 (define-public libogg
   (package
    (name "libogg")
-   (version "1.3.4")
+   (version "1.3.5")
    (source (origin
             (method url-fetch)
             (uri (string-append "https://downloads.xiph.org/releases/ogg/libogg-"
                                 version ".tar.xz"))
             (sha256
              (base32
-              "1zlk33vxvxr0l9lhkbhkdwvylw96d2n0fnd3d8dl031hph9bqqy1"))))
+              "01b7050bghdvbxvw0gzv588fn4a27zh42ljpwzm4vrf8dziipnf4"))))
    (build-system gnu-build-system)
    (arguments
     '(#:configure-flags '("--disable-static")))
diff --git a/gnu/packages/xml.scm b/gnu/packages/xml.scm
index ed443413d0..9dfaf51310 100644
--- a/gnu/packages/xml.scm
+++ b/gnu/packages/xml.scm
@@ -5,7 +5,7 @@
 ;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com>
 ;;; Copyright © 2015, 2016, 2017, 2018, 2020 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015, 2016, 2017 Mark H Weaver <mhw@netris.org>
-;;; Copyright © 2015, 2016, 2017, 2018, 2021 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2015, 2016, 2017, 2018, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2015 Raimon Grau <raimonster@gmail.com>
 ;;; Copyright © 2016 Mathieu Lirzin <mthl@gnu.org>
 ;;; Copyright © 2016, 2017 Leo Famulari <leo@famulari.name>
@@ -121,8 +121,7 @@ the entire document.")
 (define-public expat
   (package
     (name "expat")
-    (version "2.2.9")
-    (replacement expat-2.4.1)
+    (version "2.4.1")
     (source (let ((dot->underscore (lambda (c) (if (char=? #\. c) #\_ c))))
               (origin
                 (method url-fetch)
@@ -134,10 +133,22 @@ the entire document.")
                             "/expat-" version ".tar.xz")))
                 (sha256
                  (base32
-                  "1960mmgbb4cm64n1p0nz3hrs1pw03hkrfcw8prmnn4622mdrd9hy")))))
+                  "0spvyb9d3hijs4ys3x64cfmilsynl8kv6clfahv8d4lvp86js0yg")))))
     (build-system gnu-build-system)
     (arguments
-     '(#:configure-flags '("--disable-static")))
+     '(#:phases (modify-phases %standard-phases
+                  (add-after 'install 'move-static-library
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let ((out    (assoc-ref outputs "out"))
+                            (static (assoc-ref outputs "static")))
+                        (mkdir-p (string-append static "/lib"))
+                        (link (string-append out "/lib/libexpat.a")
+                              (string-append static "/lib/libexpat.a"))
+                        (delete-file (string-append out "/lib/libexpat.a"))
+                        (substitute* (string-append out "/lib/libexpat.la")
+                          (("old_library=.*")
+                           "old_library=''"))))))))
+    (outputs '("out" "static"))
     (home-page "https://libexpat.github.io/")
     (synopsis "Stream-oriented XML parser library written in C")
     (description
@@ -146,24 +157,6 @@ stream-oriented parser in which an application registers handlers for
 things the parser might find in the XML document (like start tags).")
     (license license:expat)))
 
-;; Replacement package to fix CVE-2013-0340.
-(define expat-2.4.1
-  (package
-    (inherit expat)
-    (version "2.4.1")
-    (source (let ((dot->underscore (lambda (c) (if (char=? #\. c) #\_ c))))
-              (origin
-                (method url-fetch)
-                (uri (list (string-append "mirror://sourceforge/expat/expat/"
-                                          version "/expat-" version ".tar.xz")
-                           (string-append
-                            "https://github.com/libexpat/libexpat/releases/download/R_"
-                            (string-map dot->underscore version)
-                            "/expat-" version ".tar.xz")))
-                (sha256
-                 (base32
-                  "0spvyb9d3hijs4ys3x64cfmilsynl8kv6clfahv8d4lvp86js0yg")))))))
-
 (define-public libebml
   (package
     (name "libebml")
@@ -191,35 +184,43 @@ hierarchical form with variable field lengths.")
 (define-public libxml2
   (package
     (name "libxml2")
-    (version "2.9.10")
+    (version "2.9.12")
     (source (origin
              (method url-fetch)
              (uri (string-append "ftp://xmlsoft.org/libxml2/libxml2-"
                                  version ".tar.gz"))
              (sha256
               (base32
-               "07xynh8hcxb2yb1fs051xrgszjvj37wnxvxgsj10rzmqzy9y3zma"))))
+               "14hxwzmf5xqppx77z7i0ni9lpzg1a84dqpf8j8l1fvy570g6imn8"))
+             (patches (search-patches "libxml2-parent-pointers.patch"
+                                      "libxml2-terminating-newline.patch"
+                                      "libxml2-xpath-recursion-limit.patch"))))
     (build-system gnu-build-system)
-    (outputs '("out" "static"))
+    (outputs '("out" "static" "doc"))
     (arguments
      `(#:phases (modify-phases %standard-phases
-                  (add-after 'install 'move-static-libs
+                  (add-after 'install 'use-other-outputs
                     (lambda* (#:key outputs #:allow-other-keys)
-                      (let ((src (string-append (assoc-ref outputs "out") "/lib"))
+                      (let ((src (assoc-ref outputs "out"))
+                            (doc (string-append (assoc-ref outputs "doc") "/share"))
                             (dst (string-append (assoc-ref outputs "static")
                                                 "/lib")))
+                        (mkdir-p doc)
                         (mkdir-p dst)
+                        (for-each (lambda (dir)
+                                    (rename-file (string-append src "/share/" dir)
+                                                 (string-append doc "/" dir)))
+                                  '("doc" "gtk-doc"))
                         (for-each (lambda (ar)
                                     (rename-file ar (string-append dst "/"
                                                                    (basename ar))))
-                                  (find-files src "\\.a$"))
+                                  (find-files (string-append src "/lib") "\\.a$"))
 
                         ;; Remove reference to the static library from the .la
                         ;; file such that Libtool does the right thing when both
                         ;; the shared and static variants are available.
-                        (substitute* (string-append src "/libxml2.la")
-                          (("^old_library='libxml2.a'") "old_library=''"))
-                        #t))))))
+                        (substitute* (string-append src "/lib/libxml2.la")
+                          (("^old_library='libxml2.a'") "old_library=''"))))))))
     (home-page "http://www.xmlsoft.org/")
     (synopsis "C parser for XML")
     (inputs `(("xz" ,xz)))
@@ -374,8 +375,9 @@ It uses libxml2 to access the XML files.")
     (name "python-libxml2")
     (source (origin
               (inherit (package-source libxml2))
-              (patches (cons (search-patch "python-libxml2-utf8.patch")
-                             (origin-patches (package-source libxml2))))))
+              (patches
+                (append (search-patches "python-libxml2-utf8.patch")
+                        (origin-patches (package-source libxml2))))))
     (build-system python-build-system)
     (outputs '("out"))
     (arguments
@@ -396,8 +398,7 @@ It uses libxml2 to access the XML files.")
                  (format #f "ROOT = r'~a'" libxml2))
                 ;; For 'iconv.h'.
                 (("/opt/include")
-                 (string-append glibc "/include"))))
-            #t)))))
+                 (string-append glibc "/include")))))))))
     (inputs `(("libxml2" ,libxml2)))
     (synopsis "Python bindings for the libxml2 library")))
 
@@ -2570,15 +2571,18 @@ The central program included in this package is @code{onsgmls}, which replaces
 (define-public python-elementpath
   (package
     (name "python-elementpath")
-    (version "1.4.0")
+    (version "2.0.3")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "elementpath" version))
        (sha256
         (base32
-         "15h7d41v48q31hzjay7qzixdv531hnga3h35hksk7x52pgqcrkz7"))))
+         "1kxx573ywqfh6j6aih2i6hhsya6kz79qq4bgz6yskwk6b18jyr8z"))))
     (build-system python-build-system)
+    ;; The test suite is not run, to avoid a dependency cycle with
+    ;; python-xmlschema.
+    (arguments `(#:tests? #f))
     (home-page
      "https://github.com/sissaschool/elementpath")
     (synopsis
@@ -2595,13 +2599,20 @@ because lxml.etree already has its own implementation of XPath 1.0.")
 (define-public python-lxml
   (package
     (name "python-lxml")
-    (version "4.4.2")
+    (version "4.6.3")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "lxml" version))
        (sha256
-        (base32 "01nvb5j8vs9nk4z5s3250b1m22b4d08kffa36if3g1mdygdrvxpg"))))
+        (base32 "0s14r1w2x9sdlcsw8mxiqgw4rz5zs5lpqpxrfyn4a1mkndqqbdrr"))
+       ;; Adapt a test to libxml2 2.9.12, taken from this commit:
+       ;; https://github.com/lxml/lxml/commit/852ed1092bd80b6b9a51db24371047e
+       (modules '((guix build utils)))
+       (snippet
+        '(substitute* "src/lxml/tests/test_etree.py"
+             (("self\\.assertEqual\\(\\{'hha': None\\}, el\\.nsmap\\)")
+              "self.assertEqual({}, el.nsmap)")))))
     (build-system python-build-system)
     (arguments
      `(#:phases (modify-phases %standard-phases
@@ -2624,7 +2635,7 @@ libxml2 and libxslt.")
 (define-public python-xmlschema
   (package
     (name "python-xmlschema")
-    (version "1.1.2")
+    (version "1.2.5")
     (source (origin
               ;; Unit tests are not distributed with the PyPI archive.
               (method git-fetch)
@@ -2634,21 +2645,20 @@ libxml2 and libxslt.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "03bz5mp45y4shmlc1gxq1h69vjx60z1acg9cy4kq7fczgx8qg9jw"))))
+                "0rsa75x86gdjalvy4riq7613szb616hff80crx006chyppzdkxmq"))))
     (build-system python-build-system)
     (arguments
      '(#:phases
        (modify-phases %standard-phases
          (replace 'check
-           (lambda* (#:key (tests? #t) #:allow-other-keys)
+           (lambda* (#:key tests? #:allow-other-keys)
              (if tests?
-                 (begin
-                   (setenv "PYTHONPATH"
-                           (string-append "./build/lib:"
-                                          (getenv "PYTHONPATH")))
-                   (invoke "python" "-m" "unittest" "-v"))
-                 (format #t "test suite not run~%"))
-             #t)))))
+                 ;; Disable test_export_remote__issue_187, which is known to
+                 ;; fail (see:
+                 ;; https://github.com/sissaschool/xmlschema/issues/206).
+                 (invoke "python" "-m" "unittest" "-v"
+                         "-k" "not test_export_remote__issue_187")
+                 (format #t "test suite not run~%")))))))
     (native-inputs
      `(("python-lxml" ,python-lxml)))   ;for tests
     (propagated-inputs
diff --git a/gnu/packages/xorg.scm b/gnu/packages/xorg.scm
index 6f9633985e..c82b020f92 100644
--- a/gnu/packages/xorg.scm
+++ b/gnu/packages/xorg.scm
@@ -2,11 +2,11 @@
 ;;; Copyright © 2013, 2014 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2014, 2015, 2017, 2018, 2020 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014, 2015 Eric Bavier <bavier@member.fsf.org>
-;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Eric Dvorsak <eric@dvorsak.fr>
 ;;; Copyright © 2016 Mathieu Lirzin <mthl@gnu.org>
 ;;; Copyright © 2015 Cyrill Schenkel <cyrill.schenkel@gmail.com>
-;;; Copyright © 2016, 2017, 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2017, 2019, 2020, 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Nikita <nikita@n0.is>
 ;;; Copyright © 2016 Alex Kost <alezost@gmail.com>
 ;;; Copyright © 2016 David Craven <david@craven.ch>
@@ -29,6 +29,7 @@
 ;;; Copyright © 2021 Nicolò Balzarotti <nicolo@nixo.xyz>
 ;;; Copyright © 2021 Matthew James Kraai <kraai@ftbfs.org>
 ;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re>
+;;; Copyright © 2021 Matthew James Kraai <kraai@ftbfs.org>
 ;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;; Copyright © 2021 qblade <qblade@protonmail.com>
 ;;;
@@ -227,14 +228,14 @@ which can be read by any architecture.")
 (define-public xorgproto
   (package
     (name "xorgproto")
-    (version "2019.2")
+    (version "2021.4")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://xorg/individual/proto/"
                                   "xorgproto-" version ".tar.bz2"))
               (sha256
                (base32
-                "13kvir8dz9dvzhvyfndpff1z7k8h14s7kkl7mbl427andhax1v26"))))
+                "1gwz8lhvczjinndrq2jb0swfvhk7p65rprkwiqwlp132041mfl8g"))))
     (build-system gnu-build-system)
     (propagated-inputs
      ;; To get util-macros in (almost?) all package inputs.
@@ -1476,7 +1477,7 @@ treat it as part of their software base when porting.")
 (define-public libxres
   (package
     (name "libxres")
-    (version "1.2.0")
+    (version "1.2.1")
     (source
       (origin
         (method url-fetch)
@@ -1486,7 +1487,7 @@ treat it as part of their software base when porting.")
                ".tar.bz2"))
         (sha256
           (base32
-            "1m0jr0lbz9ixpp9ihk68349q0i7ry2379lnfzdy4mrl86ijc2xgz"))))
+            "049b7dk6hx47161hg47ryjrm6pwsp27r5pby05b0wqb1pcggprmn"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags '("--disable-static")))
@@ -1907,7 +1908,7 @@ management to participate in an X11R6 session.")
 (define-public util-macros
   (package
     (name "util-macros")
-    (version "1.19.2")
+    (version "1.19.3")
     (source
       (origin
         (method url-fetch)
@@ -1917,7 +1918,7 @@ management to participate in an X11R6 session.")
                ".tar.bz2"))
         (sha256
           (base32
-            "04p7ydqxgq37jklnfj18b70zsifiz4h50wvrk94i2112mmv37r6p"))))
+            "0w8ryfqylprz37zj9grl4jzdsqq67ibfwq5raj7vm1i7kmp2x08g"))))
     (build-system gnu-build-system)
     (native-inputs `(("pkg-config" ,pkg-config)))
     (arguments
@@ -2150,8 +2151,15 @@ emulate a TI-30 or an HP-10C.")
                "https://xcb.freedesktop.org/dist/xcb-proto-"
                version ".tar.xz"))
         (sha256
-          (base32
-           "01d62r286yfc3rpz714nqdgkl0wk9j0wqkd4ylas1d7r4vmkqshq"))))
+         (base32
+          "01d62r286yfc3rpz714nqdgkl0wk9j0wqkd4ylas1d7r4vmkqshq"))
+        (modules '((guix build utils)))
+        (snippet
+         '(begin
+            ;; fractions.gcd has been deprecated since python-3.5.
+            (substitute* "xcbgen/align.py"
+              (("from fractions import gcd") "from math import gcd"))
+            #t))))
     (build-system gnu-build-system)
     (native-inputs
       `(("pkg-config" ,pkg-config) ("python" ,python-minimal-wrapper)))
@@ -2282,8 +2290,7 @@ X server: @code{handhelds}, @code{redglass} and @code{whiteglass}.")
            (delete 'configure)
            (add-before 'build 'set-inkscape-environment-variable
              (lambda* (#:key inputs #:allow-other-keys)
-               (let ((inkscape (string-append (assoc-ref inputs "inkscape")
-                                              "/bin/inkscape")))
+               (let ((inkscape (search-input-file inputs "/bin/inkscape")))
                  (setenv "INKSCAPE" inkscape)
                  #t)))
            (add-before 'build 'placate-inkscape-warnings
@@ -3586,8 +3593,7 @@ X server.")
                (format #t "decompressing x86emu source code~%")
                (with-directory-excursion "libs"
                  (let ((srcs (assoc-ref inputs "xorg-server-sources"))
-                       (tar-binary (string-append (assoc-ref inputs "tar")
-                                                  "/bin/tar")))
+                       (tar-binary (search-input-file inputs "/bin/tar")))
                    (invoke tar-binary "xvf" srcs "--strip-components=3"
                            "--wildcards" "*/hw/xfree86/x86emu/")
                    ;; extract license:
@@ -3913,7 +3919,7 @@ alternative implementations like XRandR or TwinView.")
 (define xkbcomp-intermediate            ;used as input for xkeyboard-config
   (package
     (name "xkbcomp-intermediate")
-    (version "1.4.4")
+    (version "1.4.5")
     (source
      (origin
        (method url-fetch)
@@ -3921,7 +3927,7 @@ alternative implementations like XRandR or TwinView.")
                            version ".tar.bz2"))
        (sha256
         (base32
-         "0zpjkbap9160pdd6jpgb5f0yg5281w0rkkx1l0i7g887lq1ydk2r"))))
+         "0pmhshqinwqh5rip670l3szjpywky67hv232ql6gvdj489n0hlb8"))))
     (build-system gnu-build-system)
     (inputs
      `(("xorgproto" ,xorgproto)
@@ -4050,7 +4056,7 @@ extension to the X11 protocol.  It includes:
 (define-public xkeyboard-config
   (package
     (name "xkeyboard-config")
-    (version "2.31")
+    (version "2.33")
     (source
       (origin
         (method url-fetch)
@@ -4060,7 +4066,7 @@ extension to the X11 protocol.  It includes:
               ".tar.bz2"))
         (sha256
           (base32
-            "18xddaxh83zm698syh50w983jg6b7b8zgv0dfaf7ha485hgihi6s"))))
+            "1g6kn7l0mixw50kgn7d97gwv1990c5rczr2x776q3xywss8dfzv5"))))
     (build-system gnu-build-system)
     (inputs
       `(("libx11" ,libx11)
@@ -4764,9 +4770,13 @@ cannot be adequately worked around on the client side of the wire.")
           (base32
             "0azqxllcsfxc3ilhz6kwc6x7m8wc477p59ir9p0yrsldx766zbar"))))
     (build-system gnu-build-system)
+    (outputs '("out" "doc"))             ;man pages represent 40% of the total
     (arguments
      `(#:configure-flags
        (list "--disable-static"
+             (string-append "--mandir="
+                            (assoc-ref %outputs "doc")
+                            "/share/man")
              ;; Disable zero malloc check that fails when cross-compiling.
              ,@(if (%current-target-system)
                    '("--disable-malloc0returnsnull")
@@ -4980,9 +4990,8 @@ protocol and arbitrary X extension protocol.")
              (wrap-program (string-append (assoc-ref outputs "out")
                                           "/bin/mkfontdir")
                `("PATH" ":" prefix
-                 (,(string-append (assoc-ref inputs "mkfontscale")
-                                  "/bin"))))
-             #t)))))
+                 (,(dirname
+                    (search-input-file inputs "/bin/mkfontscale"))))))))))
     (inputs
       `(("mkfontscale" ,mkfontscale)))
     (native-inputs
@@ -5090,7 +5099,7 @@ an X Window System display.")
 (define-public libxfixes
   (package
     (name "libxfixes")
-    (version "5.0.3")
+    (version "6.0.0")
     (source
       (origin
         (method url-fetch)
@@ -5100,7 +5109,7 @@ an X Window System display.")
                ".tar.bz2"))
         (sha256
           (base32
-            "1miana3y4hwdqdparsccmygqr3ic3hs5jrqfzp70hvi2zwxd676y"))))
+            "0k2v4i4r24y3kdr5ici1qqhp69djnja919xfqp54c2rylm6s5hd7"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags '("--disable-static")))
@@ -5179,8 +5188,12 @@ new API's in libXft, or the legacy API's in libX11.")
           (base32
             "0q8hz3slga3w3ch8wp0k7ay9ilhz315qnab0w1y2x9w3cf7hv8rn"))))
     (build-system gnu-build-system)
+    (outputs '("out" "doc"))             ;man pages represent 28% of the total
     (arguments
-     '(#:configure-flags '("--disable-static")))
+     '(#:configure-flags (list "--disable-static"
+                               (string-append "--mandir="
+                                              (assoc-ref %outputs "doc")
+                                              "/share/man"))))
     (propagated-inputs
       `(("xorgproto" ,xorgproto)
         ("libx11" ,libx11)
@@ -5301,6 +5314,7 @@ protocol.")
           (base32
            "0d2chjgyn5lr9sfhacfvqgnj9l9faz11vn322a06jd6lk3dxcpm5"))))
     (build-system gnu-build-system)
+    (outputs '("out" "doc"))                      ;5.5 MiB of man pages
     (propagated-inputs
       `(("libpthread-stubs" ,libpthread-stubs)
         ("libxau" ,libxau)
@@ -5312,8 +5326,11 @@ protocol.")
       `(("pkg-config" ,pkg-config)
         ("python" ,python-minimal-wrapper)))
     (arguments
-     `(#:configure-flags '("--enable-xkb"
-                           "--disable-static")))
+     `(#:configure-flags (list "--enable-xkb"
+                               "--disable-static"
+                               (string-append "--mandir="
+                                              (assoc-ref %outputs "doc")
+                                              "/share/man"))))
     (home-page "https://xcb.freedesktop.org/")
     (synopsis "The X C Binding (XCB) library")
     (description
@@ -5415,13 +5432,11 @@ over Xlib, including:
              ;; The default is to use "uname -srm", which captures the kernel
              ;; version and makes builds non-reproducible.
              "--with-os-name=GNU"
-
-             "--with-os-vendor=GuixSD"    ;not strictly needed, but looks nice
-
+             "--with-os-vendor=Guix"    ; not strictly needed, but looks nice
 
              ;; For the log file, etc.
              "--localstatedir=/var"
-             ;; For sddm
+             ;; For sddm.
              "--enable-kdrive"
              "--enable-xephyr")
 
@@ -5514,18 +5529,15 @@ draggable titlebars and borders.")
 (define-public libx11
   (package
     (name "libx11")
-    (version "1.6.10")
+    (version "1.7.2")
     (source
       (origin
         (method url-fetch)
-        (uri (string-append
-               "mirror://xorg/individual/lib/libX11-"
-               version
-               ".tar.bz2"))
+        (uri (string-append "mirror://xorg/individual/lib/libX11-"
+                            version ".tar.bz2"))
         (sha256
           (base32
-            "09k2pqmqbn2m1bpgl7jfxyqxaaxsnzbnp2bp8ycmqldqi5ln4j5g"))))
-    (replacement libx11/fixed)
+            "0v7aj8q3rlchdyfwdna7n7vgpyzyir391dlv5rwy9fxagbikbyhw"))))
     (build-system gnu-build-system)
     (outputs '("out"
                "doc"))                            ;8 MiB of man pages + XML
@@ -5553,18 +5565,6 @@ draggable titlebars and borders.")
     (description "Xorg Core X11 protocol client library.")
     (license license:x11)))
 
-(define-public libx11/fixed
-  (package
-    (inherit libx11)
-    (version "1.7.1A")
-    (source
-      (origin
-        (method url-fetch)
-        (uri "mirror://xorg/individual/lib/libX11-1.7.1.tar.bz2")
-        (sha256
-          (base32
-            "0isxad59hvdwggbxqqjjjg3zmih9xiq4d9mdsnqbyb2nmbg46kp6"))))))
-
 ;; packages of height 5 in the propagated-inputs tree
 
 (define-public libxcursor
@@ -5608,7 +5608,7 @@ draggable titlebars and borders.")
 (define-public libxt
   (package
     (name "libxt")
-    (version "1.2.0")
+    (version "1.2.1")
     (source
       (origin
         (method url-fetch)
@@ -5618,7 +5618,7 @@ draggable titlebars and borders.")
                ".tar.bz2"))
         (sha256
           (base32
-           "0cbqlyssr8aia88c8i7z59z9d0kp3p2hp6683xhz9ndyv8qza7dk"))
+           "0q1x7842r8rcn2m0q4q9f69h4qa097fyizs8brzx5ns62s7w1737"))
         (patches (search-patches "libxt-guix-search-paths.patch"))))
     (build-system gnu-build-system)
     (outputs '("out"
@@ -5650,7 +5650,7 @@ draggable titlebars and borders.")
 (define-public libxaw
   (package
     (name "libxaw")
-    (version "1.0.13")
+    (version "1.0.14")
     (source
       (origin
         (method url-fetch)
@@ -5660,7 +5660,7 @@ draggable titlebars and borders.")
                ".tar.bz2"))
         (sha256
           (base32
-            "1kdhxplwrn43d9jp3v54llp05kwx210lrsdvqb6944jp29rhdy4f"))))
+            "13kg59r3086383g1dyhnwxanhp2frssh9062mrgn34nzlf7gkbkn"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags '("--disable-static")))
@@ -6428,7 +6428,8 @@ basic eye-candy effects.")
                ;; The trailing -- is intentional, so we only replace it inside
                ;; a command line.
                (("dbus-launch --")
-                (string-append (assoc-ref inputs "dbus") "/bin/dbus-launch --")))
+                (string-append (search-input-file inputs "/bin/dbus-launch")
+                               " --")))
              ;; /run/user does not exist on guix system
              (substitute* "./xpra/scripts/config.py"
                (("socket-dir.*: \"\",")
diff --git a/gnu/services/cups.scm b/gnu/services/cups.scm
index 8bcb450ddf..3caa954579 100644
--- a/gnu/services/cups.scm
+++ b/gnu/services/cups.scm
@@ -419,6 +419,9 @@ queues.  The URI @url{file:///dev/null} is always allowed.")
    (string "lp")
    "Specifies the group name or ID that will be used when executing external
 programs.")
+  (log-file-group
+   (string "lpadmin")
+   "Specifies the group name or ID that will be used for log files.")
   (log-file-perm
    (string "0644")
    "Specifies the permissions for all log files that the scheduler writes.")
diff --git a/gnu/system/locale.scm b/gnu/system/locale.scm
index 18bbe5ba32..dcbc93e3bf 100644
--- a/gnu/system/locale.scm
+++ b/gnu/system/locale.scm
@@ -147,8 +147,7 @@ data format changes between libc versions."
 
 (define %default-locale-libcs
   ;; The libcs for which we build locales by default.
-  ;; List the previous and current libc to ease transition.
-  (list glibc))
+  (list glibc-2.31 glibc))
 
 (define %default-locale-definitions
   ;; Arbitrary set of locales that are built by default.  They are here mostly
diff --git a/gnu/system/shadow.scm b/gnu/system/shadow.scm
index 7c57222716..59f0a02c8b 100644
--- a/gnu/system/shadow.scm
+++ b/gnu/system/shadow.scm
@@ -3,6 +3,7 @@
 ;;; Copyright © 2016 Alex Griffin <a@ajgrf.com>
 ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -164,7 +165,12 @@ XTerm*utf8: always
 XTerm*metaSendsEscape: true\n"))
         (gdbinit   (plain-file "gdbinit" "\
 # Tell GDB where to look for separate debugging files.
-set debug-file-directory ~/.guix-profile/lib/debug
+guile
+(use-modules (gdb))
+(execute (string-append \"set debug-file-directory \"
+                        (or (getenv \"GDB_DEBUG_FILE_DIRECTORY\")
+                            \"~/.guix-profile/lib/debug\")))
+end
 
 # Authorize extensions found in the store, such as the
 # pretty-printers of libstdc++.
diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm
index 3390f5a88f..da076a95f9 100644
--- a/gnu/system/vm.scm
+++ b/gnu/system/vm.scm
@@ -538,7 +538,7 @@ the operating system."
                      ;; Even as root in a VM, the initializer would fail due to
                      ;; lack of privileges if we use a root-directory that is on
                      ;; a file system that is shared with the host (e.g., /tmp).
-                     (root-directory "/guixsd-system-root"))
+                     (root-directory "/guix-system-root"))
                 (set-path-environment-variable "PATH" '("bin" "sbin") '(#+tar))
                 (mkdir root-directory)
                 (initialize root-directory)
@@ -708,8 +708,8 @@ with '-virtfs' options for the host file systems listed in SHARED-FS."
             '())
 
      "-no-reboot"
-     "-object" "rng-random,filename=/dev/urandom,id=guixsd-vm-rng"
-     "-device" "virtio-rng-pci,rng=guixsd-vm-rng"
+     "-object" "rng-random,filename=/dev/urandom,id=guix-vm-rng"
+     "-device" "virtio-rng-pci,rng=guix-vm-rng"
 
      #$@(map virtfs-option shared-fs)
      "-vga std"
diff --git a/guix/build-system/android-ndk.scm b/guix/build-system/android-ndk.scm
index dbfa626a19..211fd11311 100644
--- a/guix/build-system/android-ndk.scm
+++ b/guix/build-system/android-ndk.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016 Danny Milosavljevic <dannym@scratchpost.org>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,7 +21,8 @@
   #:use-module (guix search-paths)
   #:use-module (guix store)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix packages)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -34,62 +36,51 @@
     (guix build syscalls)
     ,@%gnu-build-system-modules))
 
-(define* (android-ndk-build store name inputs
-                      #:key
-                      (tests? #t)
-                      (test-target #f)
-                      (phases '(@ (guix build android-ndk-build-system)
-                                  %standard-phases))
-                      (outputs '("out"))
-                      (make-flags ''())
-                      (search-paths '())
-                      (system (%current-system))
-                      (guile #f)
-                      (imported-modules %android-ndk-build-system-modules)
-                      (modules '((guix build android-ndk-build-system)
-                                 (guix build utils))))
+(define* (android-ndk-build name inputs
+                            #:key
+                            source
+                            (tests? #t)
+                            (test-target #f)
+                            (phases '%standard-phases)
+                            (outputs '("out"))
+                            (make-flags #~'())
+                            (search-paths '())
+                            (system (%current-system))
+                            (guile #f)
+                            (imported-modules %android-ndk-build-system-modules)
+                            (modules '((guix build android-ndk-build-system)
+                                       (guix build utils))))
   "Build SOURCE using Android NDK, and with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (android-ndk-build #:name ,name
-                    #:source ,(match (assoc-ref inputs "source")
-                                (((? derivation? source))
-                                 (derivation->output-path source))
-                                ((source)
-                                 source)
-                                (source
-                                 source))
-                    #:system ,system
-                    #:test-target ,test-target
-                    #:tests? ,tests?
-                    #:phases ,phases
-                    #:make-flags (cons* "-f"
-                                         ,(string-append
-                                          (derivation->output-path
-                                           (car (assoc-ref inputs "android-build")))
-                                          "/share/android/build/core/main.mk")
-                                         ,make-flags)
-                    #:outputs %outputs
-                    #:search-paths ',(map search-path-specification->sexp
-                                          search-paths)
-                    #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
+          (android-ndk-build #:name #$name
+                             #:source #+source
+                             #:system #$system
+                             #:test-target #$test-target
+                             #:tests? #$tests?
+                             #:phases #$phases
+                             #:bootstrap-scripts '() ;no autotools machinery
+                             #:make-flags
+                             (cons* "-f"
+                                    #$(file-append (gexp-input-thing
+                                                    (car (assoc-ref inputs
+                                                                    "android-build")))
+                                                   "/share/android/build/core/main.mk")
+                                    #$make-flags)
+                             #:outputs #$(outputs->gexp outputs)
+                             #:search-paths '#$(sexp->gexp
+                                                (map search-path-specification->sexp
+                                                     search-paths))
+                             #:inputs #$(input-tuples->gexp inputs)))))
 
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad  ((guile (package->derivation (or guile (default-guile))
+                                                   system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
@@ -98,7 +89,7 @@
   "Return a bag for NAME."
 
   (define private-keywords
-    '(#:source #:target #:inputs #:native-inputs #:outputs))
+    '(#:target #:inputs #:native-inputs #:outputs))
 
   (and (not target) ;; TODO: support cross-compilation
        (bag
diff --git a/guix/build-system/ant.scm b/guix/build-system/ant.scm
index 1809d1f3d2..08a4c996f9 100644
--- a/guix/build-system/ant.scm
+++ b/guix/build-system/ant.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,7 +21,8 @@
   #:use-module (guix store)
   #:use-module (guix utils)
   #:use-module (guix packages)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -73,7 +75,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:jdk #:ant #:zip #:inputs #:native-inputs))
+    '(#:target #:jdk #:ant #:zip #:inputs #:native-inputs))
 
   (and (not target)                               ;XXX: no cross-compilation
        (bag
@@ -94,8 +96,9 @@
          (build ant-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (ant-build store name inputs
+(define* (ant-build name inputs
                     #:key
+                    source
                     (tests? #t)
                     (test-target "check")
                     (configure-flags ''())
@@ -107,8 +110,7 @@
                     (test-exclude (list "**/Abstract*.java"))
                     (source-dir "src")
                     (test-dir "src/test")
-                    (phases '(@ (guix build ant-build-system)
-                                %standard-phases))
+                    (phases '%standard-phases)
                     (outputs '("out"))
                     (search-paths '())
                     (system (%current-system))
@@ -119,49 +121,35 @@
                                (guix build utils))))
   "Build SOURCE with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (ant-build #:name ,name
-                  #:source ,(match (assoc-ref inputs "source")
-                              (((? derivation? source))
-                               (derivation->output-path source))
-                              ((source)
-                               source)
-                              (source
-                               source))
-                  #:make-flags ,make-flags
-                  #:configure-flags ,configure-flags
-                  #:system ,system
-                  #:tests? ,tests?
-                  #:test-target ,test-target
-                  #:build-target ,build-target
-                  #:jar-name ,jar-name
-                  #:main-class ,main-class
-                  #:test-include (list ,@test-include)
-                  #:test-exclude (list ,@test-exclude)
-                  #:source-dir ,source-dir
-                  #:test-dir ,test-dir
-                  #:phases ,phases
-                  #:outputs %outputs
-                  #:search-paths ',(map search-path-specification->sexp
-                                        search-paths)
-                  #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (ant-build #:name #$name
+                     #:source #+source
+                     #:make-flags #$make-flags
+                     #:configure-flags #$configure-flags
+                     #:system #$system
+                     #:tests? #$tests?
+                     #:test-target #$test-target
+                     #:build-target #$build-target
+                     #:jar-name #$jar-name
+                     #:main-class #$main-class
+                     #:test-include (list #$@test-include)
+                     #:test-exclude (list #$@test-exclude)
+                     #:source-dir #$source-dir
+                     #:test-dir #$test-dir
+                     #:phases #$phases
+                     #:outputs #$(outputs->gexp outputs)
+                     #:search-paths '#$(sexp->gexp
+                                        (map search-path-specification->sexp
+                                             search-paths))
+                     #:inputs #$(input-tuples->gexp inputs)))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                               ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad  ((guile (package->derivation (or guile (default-guile))
+                                                   system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define ant-build-system
   (build-system
diff --git a/guix/build-system/asdf.scm b/guix/build-system/asdf.scm
index b4e40ee8c2..f043e6a7a2 100644
--- a/guix/build-system/asdf.scm
+++ b/guix/build-system/asdf.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016, 2017 Andy Patterson <ajpatter@uwaterloo.ca>
 ;;; Copyright © 2019, 2020, 2021 Guillaume Le Vaillant <glv@posteo.net>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -22,7 +23,8 @@
   #:use-module (guix utils)
   #:use-module (guix memoization)
   #:use-module (guix packages)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module ((guix build utils)
                 #:select ((package-name->name+version
@@ -92,46 +94,33 @@
          (build asdf-build/source)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (asdf-build/source store name inputs
+(define* (asdf-build/source name inputs
                             #:key source outputs
-                            (phases '(@ (guix build asdf-build-system)
-                                        %standard-phases/source))
+                            (phases '%standard-phases/source)
                             (search-paths '())
                             (system (%current-system))
                             (guile #f)
                             (imported-modules %asdf-build-system-modules)
                             (modules %asdf-build-modules))
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (asdf-build/source #:name ,name
-                          #:source ,(match (assoc-ref inputs "source")
-                                      (((? derivation? source))
-                                       (derivation->output-path source))
-                                      ((source) source)
-                                      (source source))
-                          #:system ,system
-                          #:phases ,phases
-                          #:outputs %outputs
-                          #:search-paths ',(map search-path-specification->sexp
-                                                search-paths)
-                          #:inputs %build-inputs)))
-
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (asdf-build/source #:name #$name
+                             #:source #+source
+                             #:system #$system
+                             #:phases #$phases
+                             #:outputs #$(outputs->gexp outputs)
+                             #:search-paths '#$(sexp->gexp
+                                                (map search-path-specification->sexp
+                                                     search-paths))
+                             #:inputs #$(input-tuples->gexp inputs)))))
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define* (package-with-build-system from-build-system to-build-system
                                     from-prefix to-prefix
@@ -277,19 +266,18 @@ set up using CL source package conventions."
            (arguments (strip-keyword-arguments private-keywords arguments))))))
 
 (define (asdf-build lisp-type)
-  (lambda* (store name inputs
-                  #:key source outputs
-                  (tests? #t)
-                  (asd-files ''())
-                  (asd-systems ''())
-                  (test-asd-file #f)
-                  (phases '(@ (guix build asdf-build-system)
-                              %standard-phases))
-                  (search-paths '())
-                  (system (%current-system))
-                  (guile #f)
-                  (imported-modules %asdf-build-system-modules)
-                  (modules %asdf-build-modules))
+  (lambda* (name inputs
+                 #:key source outputs
+                 (tests? #t)
+                 (asd-files ''())
+                 (asd-systems ''())
+                 (test-asd-file #f)
+                 (phases '%standard-phases)
+                 (search-paths '())
+                 (system (%current-system))
+                 (guile #f)
+                 (imported-modules %asdf-build-system-modules)
+                 (modules %asdf-build-modules))
 
     (define systems
       (if (null? (cadr asd-systems))
@@ -304,44 +292,32 @@ set up using CL source package conventions."
           asd-systems))
 
     (define builder
-      `(begin
-         (use-modules ,@modules)
-         (parameterize ((%lisp (string-append
-                                (assoc-ref %build-inputs ,lisp-type)
-                                "/bin/" ,lisp-type))
-                        (%lisp-type ,lisp-type))
-           (asdf-build #:name ,name
-                       #:source ,(match (assoc-ref inputs "source")
-                                   (((? derivation? source))
-                                    (derivation->output-path source))
-                                   ((source) source)
-                                   (source source))
-                       #:asd-files ,asd-files
-                       #:asd-systems ,systems
-                       #:test-asd-file ,test-asd-file
-                       #:system ,system
-                       #:tests? ,tests?
-                       #:phases ,phases
-                       #:outputs %outputs
-                       #:search-paths ',(map search-path-specification->sexp
-                                             search-paths)
-                       #:inputs %build-inputs))))
-
-    (define guile-for-build
-      (match guile
-        ((? package?)
-         (package-derivation store guile system #:graft? #f))
-        (#f
-         (let* ((distro (resolve-interface '(gnu packages commencement)))
-                (guile (module-ref distro 'guile-final)))
-           (package-derivation store guile system #:graft? #f)))))
-
-    (build-expression->derivation store name builder
-                                  #:inputs inputs
-                                  #:system system
-                                  #:modules imported-modules
-                                  #:outputs outputs
-                                  #:guile-for-build guile-for-build)))
+      (with-imported-modules imported-modules
+        #~(begin
+            (use-modules #$@(sexp->gexp modules))
+            (parameterize ((%lisp (search-input-file
+                                   #$(input-tuples->gexp inputs)
+                                   (string-append "bin/" #$lisp-type)))
+                           (%lisp-type #$lisp-type))
+              (asdf-build #:name #$name
+                          #:source #+source
+                          #:asd-files #$asd-files
+                          #:asd-systems #$systems
+                          #:test-asd-file #$test-asd-file
+                          #:system #$system
+                          #:tests? #$tests?
+                          #:phases #$phases
+                          #:outputs #$(outputs->gexp outputs)
+                          #:search-paths '#$(sexp->gexp
+                                             (map search-path-specification->sexp
+                                                  search-paths))
+                          #:inputs #$(input-tuples->gexp inputs))))))
+
+    (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                    system #:graft? #f)))
+      (gexp->derivation name builder
+                        #:system system
+                        #:guile-for-build guile))))
 
 (define asdf-build-system/sbcl
   (build-system
diff --git a/guix/build-system/cargo.scm b/guix/build-system/cargo.scm
index e53d2a7523..60c35eed07 100644
--- a/guix/build-system/cargo.scm
+++ b/guix/build-system/cargo.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2016 David Craven <david@craven.ch>
@@ -26,7 +26,8 @@
   #:use-module (guix search-paths)
   #:use-module (guix store)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix packages)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -71,8 +72,9 @@ to NAME and VERSION."
     (guix build json)
     ,@%cargo-utils-modules))
 
-(define* (cargo-build store name inputs
+(define* (cargo-build name inputs
                       #:key
+                      source
                       (tests? #t)
                       (test-target #f)
                       (vendor-dir "guix-vendor")
@@ -82,8 +84,7 @@ to NAME and VERSION."
                       (features ''())
                       (skip-build? #f)
                       (install-source? #t)
-                      (phases '(@ (guix build cargo-build-system)
-                                  %standard-phases))
+                      (phases '%standard-phases)
                       (outputs '("out"))
                       (search-paths '())
                       (system (%current-system))
@@ -94,47 +95,35 @@ to NAME and VERSION."
   "Build SOURCE using CARGO, and with INPUTS."
 
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (cargo-build #:name ,name
-                    #:source ,(match (assoc-ref inputs "source")
-                                (((? derivation? source))
-                                 (derivation->output-path source))
-                                ((source)
-                                 source)
-                                (source
-                                 source))
-                    #:system ,system
-                    #:test-target ,test-target
-                    #:vendor-dir ,vendor-dir
-                    #:cargo-build-flags ,cargo-build-flags
-                    #:cargo-test-flags ,cargo-test-flags
-                    #:cargo-package-flags ,cargo-package-flags
-                    #:features ,features
-                    #:skip-build? ,skip-build?
-                    #:install-source? ,install-source?
-                    #:tests? ,(and tests? (not skip-build?))
-                    #:phases ,phases
-                    #:outputs %outputs
-                    #:search-paths ',(map search-path-specification->sexp
-                                          search-paths)
-                    #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
+          (cargo-build #:name #$name
+                       #:source #+source
+                       #:system #$system
+                       #:test-target #$test-target
+                       #:vendor-dir #$vendor-dir
+                       #:cargo-build-flags #$(sexp->gexp cargo-build-flags)
+                       #:cargo-test-flags #$(sexp->gexp cargo-test-flags)
+                       #:cargo-package-flags #$(sexp->gexp cargo-package-flags)
+                       #:features #$(sexp->gexp features)
+                       #:skip-build? #$skip-build?
+                       #:install-source? #$install-source?
+                       #:tests? #$(and tests? (not skip-build?))
+                       #:phases #$(if (pair? phases)
+                                      (sexp->gexp phases)
+                                      phases)
+                       #:outputs #$(outputs->gexp outputs)
+                       #:inputs #$(input-tuples->gexp inputs)
+                       #:search-paths '#$(sexp->gexp
+                                          (map search-path-specification->sexp
+                                               search-paths))))))
 
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (gexp->derivation name builder
+                    #:system system
+                    #:target #f
+                    #:guile-for-build guile))
 
 (define (package-cargo-inputs p)
   (apply
@@ -222,7 +211,7 @@ any dependent crates. This can be a benefits:
  - It avoids waiting for quadratic builds from source: cargo always builds
  dependencies within the current workspace. This is largely due to Rust not
  having a stable ABI and other resolutions that cargo applies. This means that
- if we have a depencency chain of X -> Y -> Z and we build each definition
+ if we have a dependency chain of X -> Y -> Z and we build each definition
  independently the following will happen:
   * Cargo will build and test crate Z
   * Cargo will build crate Z in Y's workspace, then build and test Y
@@ -253,7 +242,7 @@ any dependent crates. This can be a benefits:
   "Return a bag for NAME."
 
   (define private-keywords
-    '(#:source #:target #:rust #:inputs #:native-inputs #:outputs
+    '(#:target #:rust #:inputs #:native-inputs #:outputs
       #:cargo-inputs #:cargo-development-inputs))
 
   (and (not target) ;; TODO: support cross-compilation
diff --git a/guix/build-system/chicken.scm b/guix/build-system/chicken.scm
index 9abae0431a..c6978266fc 100644
--- a/guix/build-system/chicken.scm
+++ b/guix/build-system/chicken.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2020 raingloom <raingloom@riseup.net>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -18,7 +19,9 @@
 
 (define-module (guix build-system chicken)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix store)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -47,7 +50,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:chicken #:inputs #:native-inputs))
+    '(#:target #:chicken #:inputs #:native-inputs))
 
   ;; TODO: cross-compilation support
   (and (not target)
@@ -69,60 +72,45 @@
          (build chicken-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (chicken-build store name inputs
-                   #:key
-                   (phases '(@ (guix build chicken-build-system)
-                               %standard-phases))
-                   (outputs '("out"))
-                   (search-paths '())
-                   (egg-name "")
-                   (unpack-path "")
-                   (build-flags ''())
-                   (tests? #t)
-                   (system (%current-system))
-                   (guile #f)
-                   (imported-modules %chicken-build-system-modules)
-                   (modules '((guix build chicken-build-system)
-                              (guix build union)
-                              (guix build utils))))
+(define* (chicken-build name inputs
+                        #:key
+                        source
+                        (phases '%standard-phases)
+                        (outputs '("out"))
+                        (search-paths '())
+                        (egg-name "")
+                        (unpack-path "")
+                        (build-flags ''())
+                        (tests? #t)
+                        (system (%current-system))
+                        (guile #f)
+                        (imported-modules %chicken-build-system-modules)
+                        (modules '((guix build chicken-build-system)
+                                   (guix build union)
+                                   (guix build utils))))
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (chicken-build #:name ,name
-                 #:source ,(match (assoc-ref inputs "source")
-                             (((? derivation? source))
-                              (derivation->output-path source))
-                             ((source)
-                              source)
-                             (source
-                              source))
-                 #:system ,system
-                 #:phases ,phases
-                 #:outputs %outputs
-                 #:search-paths ',(map search-path-specification->sexp
-                                       search-paths)
-                 #:egg-name ,egg-name
-                 #:unpack-path ,unpack-path
-                 #:build-flags ,build-flags
-                 #:tests? ,tests?
-                 #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (chicken-build #:name #$name
+                         #:source #+source
+                         #:system #$system
+                         #:phases #$phases
+                         #:outputs #$(outputs->gexp outputs)
+                         #:search-paths '#$(sexp->gexp
+                                            (map search-path-specification->sexp
+                                                 search-paths))
+                         #:egg-name #$egg-name
+                         #:unpack-path #$unpack-path
+                         #:build-flags #$build-flags
+                         #:tests? #$tests?
+                         #:inputs #$(input-tuples->gexp inputs)))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system
-                             #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define chicken-build-system
   (build-system
diff --git a/guix/build-system/clojure.scm b/guix/build-system/clojure.scm
index 607f67aaec..39b7f44e89 100644
--- a/guix/build-system/clojure.scm
+++ b/guix/build-system/clojure.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2018 Alex Vong <alexvong1995@gmail.com>
-;;; Copyright © 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -25,7 +25,9 @@
                 #:select (standard-packages)
                 #:prefix gnu:)
 
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix store)
+  #:use-module (guix monads)
   #:use-module (guix packages)
   #:use-module ((guix search-paths)
                 #:select
@@ -102,26 +104,9 @@
              (arguments (strip-keyword-arguments private-keywords
                                                  arguments))))))
 
-(define-with-docs source->output-path
-  "Convert source input to output path."
-  (match-lambda
-    (((? derivation? source))
-     (derivation->output-path source))
-    ((source)
-     source)
-    (source
-     source)))
-
-(define-with-docs maybe-guile->guile
-  "Find the right guile."
-  (match-lambda
-    ((and maybe-guile (? package?))
-     maybe-guile)
-    (#f ; default
-     (@* (gnu packages commencement) guile-final))))
-
-(define* (clojure-build store name inputs
+(define* (clojure-build name inputs
                         #:key
+                        source
                         (source-dirs `',%source-dirs)
                         (test-dirs `',%test-dirs)
                         (compile-dir %compile-dir)
@@ -133,7 +118,7 @@
                         (aot-include `',%aot-include)
                         (aot-exclude `',%aot-exclude)
 
-                        doc-dirs ; no sensible default
+                        doc-dirs                  ; no sensible default
                         (doc-regex %doc-regex)
 
                         (tests? %tests?)
@@ -149,48 +134,45 @@
                         (imported-modules %clojure-build-system-modules)
                         (modules %default-modules))
   "Build SOURCE with INPUTS."
-  (let ((builder `(begin
-                    (use-modules ,@modules)
-                    (clojure-build #:name ,name
-                                   #:source ,(source->output-path
-                                              (assoc-ref inputs "source"))
-
-                                   #:source-dirs ,source-dirs
-                                   #:test-dirs ,test-dirs
-                                   #:compile-dir ,compile-dir
-
-                                   #:jar-names ,jar-names
-                                   #:main-class ,main-class
-                                   #:omit-source? ,omit-source?
-
-                                   #:aot-include ,aot-include
-                                   #:aot-exclude ,aot-exclude
-
-                                   #:doc-dirs ,doc-dirs
-                                   #:doc-regex ,doc-regex
-
-                                   #:tests? ,tests?
-                                   #:test-include ,test-include
-                                   #:test-exclude ,test-exclude
-
-                                   #:phases ,phases
-                                   #:outputs %outputs
-                                   #:search-paths ',(map search-path-spec->sexp
-                                                         search-paths)
-                                   #:system ,system
-                                   #:inputs %build-inputs)))
-
-        (guile-for-build (package-derivation store
-                                             (maybe-guile->guile guile)
-                                             system
-                                             #:graft? #f)))
-
-    (build-expression->derivation store name builder
-                                  #:inputs inputs
-                                  #:system system
-                                  #:modules imported-modules
-                                  #:outputs outputs
-                                  #:guile-for-build guile-for-build)))
+  (define builder
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+
+          (clojure-build #:name #$name
+                         #:source #+source
+
+                         #:source-dirs #$source-dirs
+                         #:test-dirs #$test-dirs
+                         #:compile-dir #$compile-dir
+
+                         #:jar-names #$jar-names
+                         #:main-class #$main-class
+                         #:omit-source? #$omit-source?
+
+                         #:aot-include #$aot-include
+                         #:aot-exclude #$aot-exclude
+
+                         #:doc-dirs #$doc-dirs
+                         #:doc-regex #$doc-regex
+
+                         #:tests? #$tests?
+                         #:test-include #$test-include
+                         #:test-exclude #$test-exclude
+
+                         #:phases #$phases
+                         #:outputs #$(outputs->gexp outputs)
+                         #:search-paths '#$(sexp->gexp
+                                            (map search-path-spec->sexp
+                                                 search-paths))
+                         #:system #$system
+                         #:inputs #$(input-tuples->gexp inputs)))))
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define clojure-build-system
   (build-system
diff --git a/guix/build-system/cmake.scm b/guix/build-system/cmake.scm
index f590b6ea42..d500eccfde 100644
--- a/guix/build-system/cmake.scm
+++ b/guix/build-system/cmake.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
 ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
@@ -21,7 +21,9 @@
 
 (define-module (guix build-system cmake)
   #:use-module (guix store)
+  #:use-module (guix gexp)
   #:use-module (guix utils)
+  #:use-module (guix monads)
   #:use-module (guix derivations)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
@@ -61,7 +63,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    `(#:source #:cmake #:inputs #:native-inputs #:outputs
+    `(#:cmake #:inputs #:native-inputs
       ,@(if target '() '(#:target))))
 
   (bag
@@ -95,8 +97,8 @@
     (build (if target cmake-cross-build cmake-build))
     (arguments (strip-keyword-arguments private-keywords arguments))))
 
-(define* (cmake-build store name inputs
-                      #:key (guile #f)
+(define* (cmake-build name inputs
+                      #:key guile source
                       (outputs '("out")) (configure-flags ''())
                       (search-paths '())
                       (make-flags ''())
@@ -111,8 +113,7 @@
                       (strip-flags ''("--strip-debug"))
                       (strip-directories ''("lib" "lib64" "libexec"
                                             "bin" "sbin"))
-                      (phases '(@ (guix build cmake-build-system)
-                                  %standard-phases))
+                      (phases '%standard-phases)
                       (system (%current-system))
                       (substitutable? #t)
                       (imported-modules %cmake-build-system-modules)
@@ -120,62 +121,56 @@
                                  (guix build utils))))
   "Build SOURCE using CMAKE, and with INPUTS. This assumes that SOURCE
 provides a 'CMakeLists.txt' file as its build system."
-  (define builder
-    `(begin
-       (use-modules ,@modules)
-       (cmake-build #:source ,(match (assoc-ref inputs "source")
-                                (((? derivation? source))
-                                 (derivation->output-path source))
-                                ((source)
-                                 source)
-                                (source
-                                 source))
-                    #:system ,system
-                    #:outputs %outputs
-                    #:inputs %build-inputs
-                    #:search-paths ',(map search-path-specification->sexp
-                                          search-paths)
-                    #:phases ,phases
-                    #:configure-flags ,configure-flags
-                    #:make-flags ,make-flags
-                    #:out-of-source? ,out-of-source?
-                    #:build-type ,build-type
-                    #:tests? ,tests?
-                    #:test-target ,test-target
-                    #:parallel-build? ,parallel-build?
-                    #:parallel-tests? ,parallel-tests?
-                    #:validate-runpath? ,validate-runpath?
-                    #:patch-shebangs? ,patch-shebangs?
-                    #:strip-binaries? ,strip-binaries?
-                    #:strip-flags ,strip-flags
-                    #:strip-directories ,strip-directories)))
+  (define build
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
+          #$(with-build-variables inputs outputs
+              #~(cmake-build #:source #+source
+                             #:system #$system
+                             #:outputs %outputs
+                             #:inputs %build-inputs
+                             #:search-paths '#$(sexp->gexp
+                                                (map search-path-specification->sexp
+                                                     search-paths))
+                             #:phases #$(if (pair? phases)
+                                            (sexp->gexp phases)
+                                            phases)
+                             #:configure-flags #$(if (pair? configure-flags)
+                                                     (sexp->gexp configure-flags)
+                                                     configure-flags)
+                             #:make-flags #$make-flags
+                             #:out-of-source? #$out-of-source?
+                             #:build-type #$build-type
+                             #:tests? #$tests?
+                             #:test-target #$test-target
+                             #:parallel-build? #$parallel-build?
+                             #:parallel-tests? #$parallel-tests?
+                             #:validate-runpath? #$validate-runpath?
+                             #:patch-shebangs? #$patch-shebangs?
+                             #:strip-binaries? #$strip-binaries?
+                             #:strip-flags #$(sexp->gexp strip-flags)
+                             #:strip-directories #$(sexp->gexp strip-directories))))))
 
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs inputs
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:substitutable? substitutable?
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name build
+                      #:system system
+                      #:target #f
+                      #:substitutable? substitutable?
+                      #:guile-for-build guile)))
 
 
 ;;;
 ;;; Cross-compilation.
 ;;;
 
-(define* (cmake-cross-build store name
+(define* (cmake-cross-build name
                             #:key
-                            target native-drvs target-drvs
-                            (guile #f)
+                            target
+                            build-inputs target-inputs host-inputs
+                            source guile
                             (outputs '("out"))
                             (configure-flags ''())
                             (search-paths '())
@@ -193,8 +188,7 @@ provides a 'CMakeLists.txt' file as its build system."
                                             "--enable-deterministic-archives"))
                             (strip-directories ''("lib" "lib64" "libexec"
                                                   "bin" "sbin"))
-                            (phases '(@ (guix build cmake-build-system)
-                                        %standard-phases))
+                            (phases '%standard-phases)
                             (substitutable? #t)
                             (system (%current-system))
                             (build (nix-system->gnu-triplet system))
@@ -205,78 +199,57 @@ provides a 'CMakeLists.txt' file as its build system."
 with INPUTS.  This assumes that SOURCE provides a 'CMakeLists.txt' file as its
 build system."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (let ()
-         (define %build-host-inputs
-           ',(map (match-lambda
-                    ((name (? derivation? drv) sub ...)
-                     `(,name . ,(apply derivation->output-path drv sub)))
-                    ((name path)
-                     `(,name . ,path)))
-                  native-drvs))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+
+          (define %build-host-inputs
+            #+(input-tuples->gexp build-inputs))
+
+          (define %build-target-inputs
+            (append #$(input-tuples->gexp host-inputs)
+                    #+(input-tuples->gexp target-inputs)))
 
-         (define %build-target-inputs
-           ',(map (match-lambda
-                    ((name (? derivation? drv) sub ...)
-                     `(,name . ,(apply derivation->output-path drv sub)))
-                    ((name (? package? pkg) sub ...)
-                     (let ((drv (package-cross-derivation store pkg
-                                                          target system)))
-                       `(,name . ,(apply derivation->output-path drv sub))))
-                    ((name path)
-                     `(,name . ,path)))
-                  target-drvs))
+          (define %build-inputs
+            (append %build-host-inputs %build-target-inputs))
 
-         (cmake-build #:source ,(match (assoc-ref native-drvs "source")
-                                  (((? derivation? source))
-                                   (derivation->output-path source))
-                                  ((source)
-                                   source)
-                                  (source
-                                   source))
-                      #:system ,system
-                      #:build ,build
-                      #:target ,target
-                      #:outputs %outputs
-                      #:inputs %build-target-inputs
-                      #:native-inputs %build-host-inputs
-                      #:search-paths ',(map search-path-specification->sexp
-                                            search-paths)
-                      #:native-search-paths ',(map
-                                               search-path-specification->sexp
-                                               native-search-paths)
-                      #:phases ,phases
-                      #:configure-flags ,configure-flags
-                      #:make-flags ,make-flags
-                      #:out-of-source? ,out-of-source?
-                      #:build-type ,build-type
-                      #:tests? ,tests?
-                      #:test-target ,test-target
-                      #:parallel-build? ,parallel-build?
-                      #:parallel-tests? ,parallel-tests?
-                      #:validate-runpath? ,validate-runpath?
-                      #:patch-shebangs? ,patch-shebangs?
-                      #:strip-binaries? ,strip-binaries?
-                      #:strip-flags ,strip-flags
-                      #:strip-directories ,strip-directories))))
+          (define %outputs
+            #$(outputs->gexp outputs))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                               ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
+          (cmake-build #:source #+source
+                       #:system #$system
+                       #:build #$build
+                       #:target #$target
+                       #:outputs %outputs
+                       #:inputs %build-target-inputs
+                       #:native-inputs %build-host-inputs
+                       #:search-paths '#$(map search-path-specification->sexp
+                                              search-paths)
+                       #:native-search-paths '#$(map
+                                                 search-path-specification->sexp
+                                                 native-search-paths)
+                       #:phases #$phases
+                       #:configure-flags #$configure-flags
+                       #:make-flags #$make-flags
+                       #:out-of-source? #$out-of-source?
+                       #:build-type #$build-type
+                       #:tests? #$tests?
+                       #:test-target #$test-target
+                       #:parallel-build? #$parallel-build?
+                       #:parallel-tests? #$parallel-tests?
+                       #:validate-runpath? #$validate-runpath?
+                       #:patch-shebangs? #$patch-shebangs?
+                       #:strip-binaries? #$strip-binaries?
+                       #:strip-flags #$strip-flags
+                       #:strip-directories #$strip-directories))))
 
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs (append native-drvs target-drvs)
-                                #:outputs outputs
-                                #:modules imported-modules
-                                #:substitutable? substitutable?
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target target
+                      #:substitutable? substitutable?
+                      #:guile-for-build guile)))
 
 (define cmake-build-system
   (build-system
diff --git a/guix/build-system/copy.scm b/guix/build-system/copy.scm
index d1bf8fb654..4894ba46fb 100644
--- a/guix/build-system/copy.scm
+++ b/guix/build-system/copy.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2020 Pierre Neidhardt <mail@ambrevar.xyz>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,7 +21,8 @@
 (define-module (guix build-system copy)
   #:use-module (guix store)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -59,7 +61,7 @@
                 #:rest arguments)
   "Return a bag for NAME from the given arguments."
   (define private-keywords
-    '(#:source #:target #:inputs #:native-inputs))
+    '(#:target #:inputs #:native-inputs))
 
   (bag
     (name name)
@@ -75,8 +77,9 @@
     (build copy-build)
     (arguments (strip-keyword-arguments private-keywords arguments))))
 
-(define* (copy-build store name inputs
-                     #:key (guile #f)
+(define* (copy-build name inputs
+                     #:key
+                     guile source
                      (outputs '("out"))
                      (install-plan ''(("." "./")))
                      (search-paths '())
@@ -90,49 +93,43 @@
                      (phases '(@ (guix build copy-build-system)
                                  %standard-phases))
                      (system (%current-system))
+                     (target #f)
                      (imported-modules %copy-build-system-modules)
                      (modules '((guix build copy-build-system)
                                 (guix build utils))))
   "Build SOURCE using INSTALL-PLAN, and with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (copy-build #:source ,(match (assoc-ref inputs "source")
-                               (((?  derivation? source))
-                                (derivation->output-path source))
-                               ((source)
-                                source)
-                               (source
-                                source))
-                   #:system ,system
-                   #:outputs %outputs
-                   #:inputs %build-inputs
-                   #:install-plan ,install-plan
-                   #:search-paths ',(map search-path-specification->sexp
-                                         search-paths)
-                   #:phases ,phases
-                   #:out-of-source? ,out-of-source?
-                   #:validate-runpath? ,validate-runpath?
-                   #:patch-shebangs? ,patch-shebangs?
-                   #:strip-binaries? ,strip-binaries?
-                   #:strip-flags ,strip-flags
-                   #:strip-directories ,strip-directories)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@modules)
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
+          #$(with-build-variables inputs outputs
+              #~(copy-build #:source #+source
+                            #:system #$system
+                            #:outputs %outputs
+                            #:inputs %build-inputs
+                            #:install-plan #$(if (pair? install-plan)
+                                                 (sexp->gexp install-plan)
+                                                 install-plan)
+                            #:search-paths '#$(sexp->gexp
+                                               (map search-path-specification->sexp
+                                                    search-paths))
+                            #:phases #$(if (pair? phases)
+                                           (sexp->gexp phases)
+                                           phases)
+                            #:out-of-source? #$out-of-source?
+                            #:validate-runpath? #$validate-runpath?
+                            #:patch-shebangs? #$patch-shebangs?
+                            #:strip-binaries? #$strip-binaries?
+                            #:strip-flags #$(sexp->gexp strip-flags)
+                            #:strip-directories #$(sexp->gexp strip-directories))))))
 
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs inputs
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target #f
+                      #:guile-for-build guile)))
 
 (define copy-build-system
   (build-system
diff --git a/guix/build-system/dub.scm b/guix/build-system/dub.scm
index 5a31a2f51a..55ad7decb8 100644
--- a/guix/build-system/dub.scm
+++ b/guix/build-system/dub.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2016 David Craven <david@craven.ch>
@@ -24,7 +24,8 @@
   #:use-module (guix search-paths)
   #:use-module (guix store)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix packages)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -56,57 +57,43 @@
     (guix build syscalls)
     ,@%gnu-build-system-modules))
 
-(define* (dub-build store name inputs
-                      #:key
-                      (tests? #t)
-                      (test-target #f)
-                      (dub-build-flags ''())
-                      (phases '(@ (guix build dub-build-system)
-                                  %standard-phases))
-                      (outputs '("out"))
-                      (search-paths '())
-                      (system (%current-system))
-                      (guile #f)
-                      (imported-modules %dub-build-system-modules)
-                      (modules '((guix build dub-build-system)
-                                 (guix build utils))))
+(define* (dub-build name inputs
+                    #:key
+                    source
+                    (tests? #t)
+                    (test-target #f)
+                    (dub-build-flags ''())
+                    (phases '%standard-phases)
+                    (outputs '("out"))
+                    (search-paths '())
+                    (system (%current-system))
+                    (guile #f)
+                    (imported-modules %dub-build-system-modules)
+                    (modules '((guix build dub-build-system)
+                               (guix build utils))))
   "Build SOURCE using DUB, and with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (dub-build #:name ,name
-                    #:source ,(match (assoc-ref inputs "source")
-                                (((? derivation? source))
-                                 (derivation->output-path source))
-                                ((source)
-                                 source)
-                                (source
-                                 source))
-                    #:system ,system
-                    #:test-target ,test-target
-                    #:dub-build-flags ,dub-build-flags
-                    #:tests? ,tests?
-                    #:phases ,phases
-                    #:outputs %outputs
-                    #:search-paths ',(map search-path-specification->sexp
-                                          search-paths)
-                    #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (dub-build #:name #$name
+                     #:source #+source
+                     #:system #$system
+                     #:test-target #$test-target
+                     #:dub-build-flags #$dub-build-flags
+                     #:tests? #$tests?
+                     #:phases #$phases
+                     #:outputs #$(outputs->gexp outputs)
+                     #:search-paths '#$(sexp->gexp
+                                        (map search-path-specification->sexp
+                                             search-paths))
+                     #:inputs #$(input-tuples->gexp inputs)))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
@@ -118,7 +105,7 @@
   "Return a bag for NAME."
 
   (define private-keywords
-    '(#:source #:target #:ldc #:dub #:pkg-config #:inputs #:native-inputs #:outputs))
+    '(#:target #:ldc #:dub #:pkg-config #:inputs #:native-inputs #:outputs))
 
   (and (not target) ;; TODO: support cross-compilation
        (bag
diff --git a/guix/build-system/dune.scm b/guix/build-system/dune.scm
index 6a2f3d16de..8c33e096f5 100644
--- a/guix/build-system/dune.scm
+++ b/guix/build-system/dune.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016, 2017, 2018 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2017 Ben Woodcroft <donttrustben@gmail.com>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,7 +21,7 @@
 (define-module (guix build-system dune)
   #:use-module (guix store)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module ((guix build-system gnu) #:prefix gnu:)
@@ -60,7 +61,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:dune #:findlib #:ocaml #:inputs #:native-inputs))
+    '(#:target #:dune #:findlib #:ocaml #:inputs #:native-inputs))
 
   (and (not target)                               ;XXX: no cross-compilation
        (let ((base (ocaml:lower name
@@ -80,8 +81,9 @@
            (build dune-build)
            (arguments (strip-keyword-arguments private-keywords arguments))))))
 
-(define* (dune-build store name inputs
-                     #:key (guile #f)
+(define* (dune-build name inputs
+                     #:key
+                     guile source
                      (outputs '("out"))
                      (search-paths '())
                      (build-flags ''())
@@ -107,50 +109,39 @@
   "Build SOURCE using OCAML, and with INPUTS. This assumes that SOURCE
 provides a 'setup.ml' file as its build system."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (dune-build #:source ,(match (assoc-ref inputs "source")
-                               (((? derivation? source))
-                                (derivation->output-path source))
-                               ((source)
-                                source)
-                               (source
-                                source))
-                   #:system ,system
-                   #:outputs %outputs
-                   #:inputs %build-inputs
-                   #:search-paths ',(map search-path-specification->sexp
-                                         search-paths)
-                   #:phases ,phases
-                   #:test-flags ,test-flags
-                   #:build-flags ,build-flags
-                   #:out-of-source? ,out-of-source?
-                   #:jbuild? ,jbuild?
-                   #:package ,package
-                   #:tests? ,tests?
-                   #:test-target ,test-target
-                   #:install-target ,install-target
-                   #:validate-runpath? ,validate-runpath?
-                   #:patch-shebangs? ,patch-shebangs?
-                   #:strip-binaries? ,strip-binaries?
-                   #:strip-flags ,strip-flags
-                   #:strip-directories ,strip-directories)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@modules)
+          (dune-build #:source #$source
+                      #:system #$system
+                      #:outputs (list #$@(map (lambda (name)
+                                                #~(cons #$name
+                                                        (ungexp output name)))
+                                              outputs))
+                      #:inputs (map (lambda (tuple)
+                                      (apply cons tuple))
+                                    '#$inputs)
+                      #:search-paths '#$(map search-path-specification->sexp
+                                             search-paths)
+                      #:phases #$phases
+                      #:test-flags #$test-flags
+                      #:build-flags #$build-flags
+                      #:out-of-source? #$out-of-source?
+                      #:jbuild? #$jbuild?
+                      #:package #$package
+                      #:tests? #$tests?
+                      #:test-target #$test-target
+                      #:install-target #$install-target
+                      #:validate-runpath? #$validate-runpath?
+                      #:patch-shebangs? #$patch-shebangs?
+                      #:strip-binaries? #$strip-binaries?
+                      #:strip-flags #$strip-flags
+                      #:strip-directories #$strip-directories))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs inputs
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (gexp->derivation name builder
+                    #:system system
+                    #:target #f
+                    #:guile-for-build guile))
 
 (define dune-build-system
   (build-system
diff --git a/guix/build-system/emacs.scm b/guix/build-system/emacs.scm
index ac05ff420e..3df68789ff 100644
--- a/guix/build-system/emacs.scm
+++ b/guix/build-system/emacs.scm
@@ -23,7 +23,8 @@
   #:use-module (guix store)
   #:use-module (guix utils)
   #:use-module (guix packages)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -81,13 +82,12 @@
          (build emacs-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (emacs-build store name inputs
+(define* (emacs-build name inputs
                       #:key source
                       (tests? #f)
                       (parallel-tests? #t)
                       (test-command ''("make" "check"))
-                      (phases '(@ (guix build emacs-build-system)
-                                  %standard-phases))
+                      (phases '%standard-phases)
                       (outputs '("out"))
                       (include (quote %default-include))
                       (exclude (quote %default-exclude))
@@ -100,43 +100,29 @@
                                  (guix build emacs-utils))))
   "Build SOURCE using EMACS, and with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (emacs-build #:name ,name
-                    #:source ,(match (assoc-ref inputs "source")
-                                (((? derivation? source))
-                                 (derivation->output-path source))
-                                ((source)
-                                 source)
-                                (source
-                                 source))
-                    #:system ,system
-                    #:test-command ,test-command
-                    #:tests? ,tests?
-                    #:parallel-tests? ,parallel-tests?
-                    #:phases ,phases
-                    #:outputs %outputs
-                    #:include ,include
-                    #:exclude ,exclude
-                    #:search-paths ',(map search-path-specification->sexp
-                                          search-paths)
-                    #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (emacs-build #:name #$name
+                       #:source #+source
+                       #:system #$system
+                       #:test-command #$test-command
+                       #:tests? #$tests?
+                       #:parallel-tests? #$parallel-tests?
+                       #:phases #$phases
+                       #:outputs #$(outputs->gexp outputs)
+                       #:include #$include
+                       #:exclude #$exclude
+                       #:search-paths '#$(sexp->gexp
+                                          (map search-path-specification->sexp
+                                               search-paths))
+                       #:inputs #$(input-tuples->gexp inputs)))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define emacs-build-system
   (build-system
diff --git a/guix/build-system/font.scm b/guix/build-system/font.scm
index d40a4985f8..74dc80b5db 100644
--- a/guix/build-system/font.scm
+++ b/guix/build-system/font.scm
@@ -17,6 +17,9 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (guix build-system font)
+  #:use-module (guix gexp)
+  #:use-module (guix store)
+  #:use-module (guix monads)
   #:use-module (guix utils)
   #:use-module (guix packages)
   #:use-module (guix derivations)
@@ -69,13 +72,12 @@
     (build font-build)
     (arguments (strip-keyword-arguments private-keywords arguments))))
 
-(define* (font-build store name inputs
+(define* (font-build name inputs
                      #:key source
                      (tests? #t)
                      (test-target "test")
                      (configure-flags ''())
-                     (phases '(@ (guix build font-build-system)
-                                 %standard-phases))
+                     (phases '%standard-phases)
                      (outputs '("out"))
                      (search-paths '())
                      (system (%current-system))
@@ -85,41 +87,32 @@
                                 (guix build utils))))
   "Build SOURCE with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (font-build #:name ,name
-                   #:source ,(match (assoc-ref inputs "source")
-                               (((? derivation? source))
-                                (derivation->output-path source))
-                               ((source)
-                                source)
-                               (source
-                                source))
-                   #:configure-flags ,configure-flags
-                   #:system ,system
-                   #:test-target ,test-target
-                   #:tests? ,tests?
-                   #:phases ,phases
-                   #:outputs %outputs
-                   #:search-paths ',(map search-path-specification->sexp
-                                         search-paths)
-                   #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@modules)
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
+          #$(with-build-variables inputs outputs
+              #~(font-build #:name #$name
+                            #:source #+source
+                            #:configure-flags #$configure-flags
+                            #:system #$system
+                            #:test-target #$test-target
+                            #:tests? #$tests?
+                            #:phases #$(if (pair? phases)
+                                           (sexp->gexp phases)
+                                           phases)
+                            #:outputs %outputs
+                            #:search-paths '#$(sexp->gexp
+                                               (map search-path-specification->sexp
+                                                    search-paths))
+                            #:inputs %build-inputs)))))
 
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target #f
+                      #:guile-for-build guile)))
 
 (define font-build-system
   (build-system
diff --git a/guix/build-system/glib-or-gtk.scm b/guix/build-system/glib-or-gtk.scm
index fb1f8fb930..2df49a2495 100644
--- a/guix/build-system/glib-or-gtk.scm
+++ b/guix/build-system/glib-or-gtk.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
 ;;; Copyright © 2014 Federico Beffa <beffa@fbengineering.ch>
 ;;;
@@ -21,6 +21,8 @@
 (define-module (guix build-system glib-or-gtk)
   #:use-module (guix store)
   #:use-module (guix utils)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix derivations)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
@@ -85,7 +87,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:glib #:inputs #:native-inputs
+    '(#:target #:glib #:inputs #:native-inputs
       #:outputs #:implicit-inputs?))
 
   (and (not target)                               ;XXX: no cross-compilation
@@ -105,8 +107,8 @@
          (build glib-or-gtk-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (glib-or-gtk-build store name inputs
-                            #:key (guile #f)
+(define* (glib-or-gtk-build name inputs
+                            #:key guile source
                             (outputs '("out"))
                             (search-paths '())
                             (configure-flags ''())
@@ -132,70 +134,47 @@
                             allowed-references
                             disallowed-references)
   "Build SOURCE with INPUTS.  See GNU-BUILD for more details."
-  (define canonicalize-reference
-    (match-lambda
-     ((? package? p)
-      (derivation->output-path (package-derivation store p system)))
-     (((? package? p) output)
-      (derivation->output-path (package-derivation store p system)
-                               output))
-     ((? string? output)
-      output)))
+  (define build
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
 
-  (define builder
-    `(begin
-       (use-modules ,@modules)
-       (glib-or-gtk-build #:source ,(match (assoc-ref inputs "source")
-                                      (((? derivation? source))
-                                       (derivation->output-path source))
-                                      ((source)
-                                       source)
-                                      (source
-                                       source))
-                          #:system ,system
-                          #:outputs %outputs
-                          #:inputs %build-inputs
-                          #:search-paths ',(map search-path-specification->sexp
-                                                search-paths)
-                          #:phases ,phases
-                          #:glib-or-gtk-wrap-excluded-outputs
-                           ,glib-or-gtk-wrap-excluded-outputs
-                          #:configure-flags ,configure-flags
-                          #:make-flags ,make-flags
-                          #:out-of-source? ,out-of-source?
-                          #:tests? ,tests?
-                          #:test-target ,test-target
-                          #:parallel-build? ,parallel-build?
-                          #:parallel-tests? ,parallel-tests?
-                          #:validate-runpath? ,validate-runpath?
-                          #:patch-shebangs? ,patch-shebangs?
-                          #:strip-binaries? ,strip-binaries?
-                          #:strip-flags ,strip-flags
-                          #:strip-directories ,strip-directories)))
+          #$(with-build-variables inputs outputs
+              #~(glib-or-gtk-build #:source #+source
+                                   #:system #$system
+                                   #:outputs %outputs
+                                   #:inputs %build-inputs
+                                   #:search-paths '#$(sexp->gexp
+                                                      (map search-path-specification->sexp
+                                                           search-paths))
+                                   #:phases #$(if (pair? phases)
+                                                  (sexp->gexp phases)
+                                                  phases)
+                                   #:glib-or-gtk-wrap-excluded-outputs
+                                   #$glib-or-gtk-wrap-excluded-outputs
+                                   #:configure-flags #$configure-flags
+                                   #:make-flags #$make-flags
+                                   #:out-of-source? #$out-of-source?
+                                   #:tests? #$tests?
+                                   #:test-target #$test-target
+                                   #:parallel-build? #$parallel-build?
+                                   #:parallel-tests? #$parallel-tests?
+                                   #:validate-runpath? #$validate-runpath?
+                                   #:patch-shebangs? #$patch-shebangs?
+                                   #:strip-binaries? #$strip-binaries?
+                                   #:strip-flags #$(sexp->gexp strip-flags)
+                                   #:strip-directories
+                                   #$(sexp->gexp strip-directories))))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
 
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs inputs
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:allowed-references
-                                (and allowed-references
-                                     (map canonicalize-reference
-                                          allowed-references))
-                                #:disallowed-references
-                                (and disallowed-references
-                                     (map canonicalize-reference
-                                          disallowed-references))
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name build
+                      #:system system
+                      #:target #f
+                      #:allowed-references allowed-references
+                      #:disallowed-references disallowed-references
+                      #:guile-for-build guile)))
 
 (define glib-or-gtk-build-system
   (build-system
diff --git a/guix/build-system/gnu.scm b/guix/build-system/gnu.scm
index 6b481ad45c..ea91be5bcd 100644
--- a/guix/build-system/gnu.scm
+++ b/guix/build-system/gnu.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,6 +20,8 @@
   #:use-module (guix store)
   #:use-module (guix utils)
   #:use-module (guix memoization)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix derivations)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
@@ -215,7 +217,7 @@ use `--strip-all' as the arguments to `strip'."
     (arguments
      (let ((a (default-keyword-arguments (package-arguments p)
                 '(#:configure-flags '()
-                  #:strip-flags '("--strip-debug")))))
+                  #:strip-flags '("--strip-unneeded")))))
        (substitute-keyword-arguments a
          ((#:configure-flags flags)
           `(cons* "--disable-shared" "LDFLAGS=-static" ,flags))
@@ -281,7 +283,7 @@ standard packages used as implicit inputs of the GNU build system."
                 #:rest arguments)
   "Return a bag for NAME from the given arguments."
   (define private-keywords
-    `(#:source #:inputs #:native-inputs #:outputs
+    `(#:inputs #:native-inputs #:outputs
       #:implicit-inputs? #:implicit-cross-inputs?
       ,@(if target '() '(#:target))))
 
@@ -324,10 +326,22 @@ standard packages used as implicit inputs of the GNU build system."
   ;; Regexp matching license files.
   "^(COPYING.*|LICEN[CS]E.*|[Ll]icen[cs]e.*|Copy[Rr]ight(\\.(txt|md))?)$")
 
-(define* (gnu-build store name input-drvs
-                    #:key (guile #f)
+(define %bootstrap-scripts
+  ;; Typical names of Autotools "bootstrap" scripts.
+  #~%bootstrap-scripts)
+
+(define %strip-flags
+  #~'("--strip-unneeded" "--enable-deterministic-archives"))
+
+(define %strip-directories
+  #~'("lib" "lib64" "libexec" "bin" "sbin"))
+
+(define* (gnu-build name inputs
+                    #:key
+                    guile source
                     (outputs '("out"))
                     (search-paths '())
+                    (bootstrap-scripts %bootstrap-scripts)
                     (configure-flags ''())
                     (make-flags ''())
                     (out-of-source? #f)
@@ -337,11 +351,10 @@ standard packages used as implicit inputs of the GNU build system."
                     (parallel-tests? #t)
                     (patch-shebangs? #t)
                     (strip-binaries? #t)
-                    (strip-flags ''("--strip-debug"
-                                    "--enable-deterministic-archives"))
-                    (strip-directories ''("lib" "lib64" "libexec"
-                                          "bin" "sbin"))
+                    (strip-flags %strip-flags)
+                    (strip-directories %strip-directories)
                     (validate-runpath? #t)
+                    (make-dynamic-linker-cache? #t)
                     (license-file-regexp %license-file-regexp)
                     (phases '%standard-phases)
                     (locale "en_US.utf8")
@@ -368,78 +381,55 @@ SUBSTITUTABLE? determines whether users may be able to use substitutes of the
 returned derivations, or whether they should always build it locally.
 
 ALLOWED-REFERENCES can be either #f, or a list of packages that the outputs
-are allowed to refer to.  Likewise for DISALLOWED-REFERENCES, which lists
-packages that must not be referenced."
-  (define canonicalize-reference
-    (match-lambda
-     ((? package? p)
-      (derivation->output-path (package-derivation store p system
-                                                   #:graft? #f)))
-     (((? package? p) output)
-      (derivation->output-path (package-derivation store p system
-                                                   #:graft? #f)
-                               output))
-     ((? string? output)
-      output)))
-
+are allowed to refer to."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (gnu-build #:source ,(match (assoc-ref input-drvs "source")
-                              (((? derivation? source))
-                               (derivation->output-path source))
-                              ((source)
-                               source)
-                              (source
-                               source))
-                  #:system ,system
-                  #:build ,build
-                  #:outputs %outputs
-                  #:inputs %build-inputs
-                  #:search-paths ',(map search-path-specification->sexp
-                                        search-paths)
-                  #:phases ,phases
-                  #:locale ,locale
-                  #:configure-flags ,configure-flags
-                  #:make-flags ,make-flags
-                  #:out-of-source? ,out-of-source?
-                  #:tests? ,tests?
-                  #:test-target ,test-target
-                  #:parallel-build? ,parallel-build?
-                  #:parallel-tests? ,parallel-tests?
-                  #:patch-shebangs? ,patch-shebangs?
-                  #:strip-binaries? ,strip-binaries?
-                  #:validate-runpath? ,validate-runpath?
-                  #:license-file-regexp ,license-file-regexp
-                  #:strip-flags ,strip-flags
-                  #:strip-directories ,strip-directories)))
-
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system
-                             #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs input-drvs
-                                #:outputs outputs
-                                #:modules imported-modules
-                                #:substitutable? substitutable?
-
-                                #:allowed-references
-                                (and allowed-references
-                                     (map canonicalize-reference
-                                          allowed-references))
-                                #:disallowed-references
-                                (and disallowed-references
-                                     (map canonicalize-reference
-                                          disallowed-references))
-                                #:guile-for-build guile-for-build))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+
+          #$(with-build-variables inputs outputs
+              #~(gnu-build #:source #+source
+                           #:system #$system
+                           #:build #$build
+                           #:outputs %outputs
+                           #:inputs %build-inputs
+                           #:search-paths '#$(sexp->gexp
+                                              (map search-path-specification->sexp
+                                                   search-paths))
+                           #:phases #$(if (pair? phases)
+                                          (sexp->gexp phases)
+                                          phases)
+                           #:locale #$locale
+                           #:bootstrap-scripts #$bootstrap-scripts
+                           #:configure-flags #$(if (pair? configure-flags)
+                                                   (sexp->gexp configure-flags)
+                                                   configure-flags)
+                           #:make-flags #$(if (pair? make-flags)
+                                              (sexp->gexp make-flags)
+                                              make-flags)
+                           #:out-of-source? #$out-of-source?
+                           #:tests? #$tests?
+                           #:test-target #$test-target
+                           #:parallel-build? #$parallel-build?
+                           #:parallel-tests? #$parallel-tests?
+                           #:patch-shebangs? #$patch-shebangs?
+                           #:license-file-regexp #$license-file-regexp
+                           #:strip-binaries? #$strip-binaries?
+                           #:validate-runpath? #$validate-runpath?
+                           #:make-dynamic-linker-cache? #$make-dynamic-linker-cache?
+                           #:license-file-regexp #$license-file-regexp
+                           #:strip-flags #$strip-flags
+                           #:strip-directories #$strip-directories)))))
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target #f
+                      #:substitutable? substitutable?
+                      #:allowed-references allowed-references
+                      #:disallowed-references disallowed-references
+                      #:guile-for-build guile)))
 
 
 ;;;
@@ -475,15 +465,16 @@ is one of `host' or `target'."
                    `(("cross-libc:static" ,libc "static"))
                    '()))))))))
 
-(define* (gnu-cross-build store name
+(define* (gnu-cross-build name
                           #:key
-                          target native-drvs target-drvs
-                          (guile #f)
-                          source
+                          target
+                          build-inputs target-inputs host-inputs
+                          guile source
                           (outputs '("out"))
                           (search-paths '())
                           (native-search-paths '())
 
+                          (bootstrap-scripts %bootstrap-scripts)
                           (configure-flags ''())
                           (make-flags ''())
                           (out-of-source? #f)
@@ -492,11 +483,15 @@ is one of `host' or `target'."
                           (parallel-build? #t) (parallel-tests? #t)
                           (patch-shebangs? #t)
                           (strip-binaries? #t)
-                          (strip-flags ''("--strip-debug"
-                                          "--enable-deterministic-archives"))
-                          (strip-directories ''("lib" "lib64" "libexec"
-                                                "bin" "sbin"))
+                          (strip-flags %strip-flags)
+                          (strip-directories %strip-directories)
                           (validate-runpath? #t)
+
+                          ;; We run 'ldconfig' to generate ld.so.cache and it
+                          ;; generally can't do that for cross-built binaries
+                          ;; ("ldconfig: foo.so is for unknown machine 40.").
+                          (make-dynamic-linker-cache? #f)
+
                           (license-file-regexp %license-file-regexp)
                           (phases '%standard-phases)
                           (locale "en_US.utf8")
@@ -510,102 +505,66 @@ is one of `host' or `target'."
   "Cross-build NAME for TARGET, where TARGET is a GNU triplet.  INPUTS are
 cross-built inputs, and NATIVE-INPUTS are inputs that run on the build
 platform."
-  (define canonicalize-reference
-    (match-lambda
-     ((? package? p)
-      (derivation->output-path (package-cross-derivation store p
-                                                         target system)))
-     (((? package? p) output)
-      (derivation->output-path (package-cross-derivation store p
-                                                         target system)
-                               output))
-     ((? string? output)
-      output)))
-
   (define builder
-    `(begin
-       (use-modules ,@modules)
-
-       (let ()
-         (define %build-host-inputs
-           ',(map (match-lambda
-                   ((name (? derivation? drv) sub ...)
-                    `(,name . ,(apply derivation->output-path drv sub)))
-                   ((name path)
-                    `(,name . ,path)))
-                  native-drvs))
-
-         (define %build-target-inputs
-           ',(map (match-lambda
-                   ((name (? derivation? drv) sub ...)
-                    `(,name . ,(apply derivation->output-path drv sub)))
-                   ((name (? package? pkg) sub ...)
-                    (let ((drv (package-cross-derivation store pkg
-                                                         target system)))
-                      `(,name . ,(apply derivation->output-path drv sub))))
-                   ((name path)
-                    `(,name . ,path)))
-                  target-drvs))
-
-         (gnu-build #:source ,(match (assoc-ref native-drvs "source")
-                                (((? derivation? source))
-                                 (derivation->output-path source))
-                                ((source)
-                                 source)
-                                (source
-                                 source))
-                    #:system ,system
-                    #:build ,build
-                    #:target ,target
-                    #:outputs %outputs
-                    #:inputs %build-target-inputs
-                    #:native-inputs %build-host-inputs
-                    #:search-paths ',(map search-path-specification->sexp
-                                          search-paths)
-                    #:native-search-paths ',(map
-                                             search-path-specification->sexp
-                                             native-search-paths)
-                    #:phases ,phases
-                    #:locale ,locale
-                    #:configure-flags ,configure-flags
-                    #:make-flags ,make-flags
-                    #:out-of-source? ,out-of-source?
-                    #:tests? ,tests?
-                    #:test-target ,test-target
-                    #:parallel-build? ,parallel-build?
-                    #:parallel-tests? ,parallel-tests?
-                    #:patch-shebangs? ,patch-shebangs?
-                    #:strip-binaries? ,strip-binaries?
-                    #:validate-runpath? ,validate-runpath?
-                    #:license-file-regexp ,license-file-regexp
-                    #:strip-flags ,strip-flags
-                    #:strip-directories ,strip-directories))))
-
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs (append native-drvs target-drvs)
-                                #:outputs outputs
-                                #:modules imported-modules
-                                #:substitutable? substitutable?
-
-                                #:allowed-references
-                                (and allowed-references
-                                     (map canonicalize-reference
-                                          allowed-references))
-                                #:disallowed-references
-                                (and disallowed-references
-                                     (map canonicalize-reference
-                                          disallowed-references))
-                                #:guile-for-build guile-for-build))
+    #~(begin
+        (use-modules #$@(sexp->gexp modules))
+
+        (define %build-host-inputs
+          #+(input-tuples->gexp build-inputs))
+
+        (define %build-target-inputs
+          (append #$(input-tuples->gexp host-inputs)
+                  #+(input-tuples->gexp target-inputs)))
+
+        (define %build-inputs
+          (append %build-host-inputs %build-target-inputs))
+
+        (define %outputs
+          #$(outputs->gexp outputs))
+
+        (gnu-build #:source #+source
+                   #:system #$system
+                   #:build #$build
+                   #:target #$target
+                   #:outputs %outputs
+                   #:inputs %build-target-inputs
+                   #:native-inputs %build-host-inputs
+                   #:search-paths '#$(sexp->gexp
+                                      (map search-path-specification->sexp
+                                           search-paths))
+                   #:native-search-paths '#$(sexp->gexp
+                                             (map
+                                              search-path-specification->sexp
+                                              native-search-paths))
+                   #:phases #$phases
+                   #:locale #$locale
+                   #:bootstrap-scripts #$bootstrap-scripts
+                   #:configure-flags #$configure-flags
+                   #:make-flags #$make-flags
+                   #:out-of-source? #$out-of-source?
+                   #:tests? #$tests?
+                   #:test-target #$test-target
+                   #:parallel-build? #$parallel-build?
+                   #:parallel-tests? #$parallel-tests?
+                   #:patch-shebangs? #$patch-shebangs?
+                   #:license-file-regexp #$license-file-regexp
+                   #:strip-binaries? #$strip-binaries?
+                   #:validate-runpath? #$validate-runpath?
+                   #:make-dynamic-linker-cache? #$make-dynamic-linker-cache?
+                   #:license-file-regexp #$license-file-regexp
+                   #:strip-flags #$strip-flags
+                   #:strip-directories #$strip-directories)))
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target target
+                      #:modules imported-modules
+                      #:substitutable? substitutable?
+                      #:allowed-references allowed-references
+                      #:disallowed-references disallowed-references
+                      #:guile-for-build guile)))
 
 (define gnu-build-system
   (build-system
diff --git a/guix/build-system/go.scm b/guix/build-system/go.scm
index 8f55796e86..100d1db4b6 100644
--- a/guix/build-system/go.scm
+++ b/guix/build-system/go.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2016 Petter <petter@mykolab.ch>
 ;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,7 +21,9 @@
 
 (define-module (guix build-system go)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix store)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -96,7 +99,7 @@ commit hash and its date rather than a proper release tag."
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:go #:inputs #:native-inputs))
+    '(#:target #:go #:inputs #:native-inputs))
 
   (and (not target)                               ;XXX: no cross-compilation
        (bag
@@ -115,10 +118,10 @@ commit hash and its date rather than a proper release tag."
          (build go-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (go-build store name inputs
+(define* (go-build name inputs
                    #:key
-                   (phases '(@ (guix build go-build-system)
-                               %standard-phases))
+                   source
+                   (phases '%standard-phases)
                    (outputs '("out"))
                    (search-paths '())
                    (install-source? #t)
@@ -134,45 +137,30 @@ commit hash and its date rather than a proper release tag."
                               (guix build union)
                               (guix build utils))))
   (define builder
-   `(begin
-      (use-modules ,@modules)
-      (go-build #:name ,name
-                #:source ,(match (assoc-ref inputs "source")
-                                 (((? derivation? source))
-                                  (derivation->output-path source))
-                                 ((source)
-                                  source)
-                                 (source
-                                  source))
-                #:system ,system
-                #:phases ,phases
-                #:outputs %outputs
-                #:search-paths ',(map search-path-specification->sexp
-                                      search-paths)
-                #:install-source? ,install-source?
-                #:import-path ,import-path
-                #:unpack-path ,unpack-path
-                #:build-flags ,build-flags
-                #:tests? ,tests?
-                #:allow-go-reference? ,allow-go-reference?
-                #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@modules)
+          (go-build #:name #$name
+                    #:source #+source
+                    #:system #$system
+                    #:phases #$phases
+                    #:outputs #$(outputs->gexp outputs)
+                    #:search-paths '#$(sexp->gexp
+                                       (map search-path-specification->sexp
+                                            search-paths))
+                    #:install-source? #$install-source?
+                    #:import-path #$import-path
+                    #:unpack-path #$unpack-path
+                    #:build-flags #$build-flags
+                    #:tests? #$tests?
+                    #:allow-go-reference? #$allow-go-reference?
+                    #:inputs #$(input-tuples->gexp inputs)))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system
-                             #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define go-build-system
   (build-system
diff --git a/guix/build-system/guile.scm b/guix/build-system/guile.scm
index 45e735b987..f64f214675 100644
--- a/guix/build-system/guile.scm
+++ b/guix/build-system/guile.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2018, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,7 +20,8 @@
   #:use-module (guix store)
   #:use-module (guix utils)
   #:use-module (guix packages)
-  #:use-module (guix derivations)
+  #:use-module (guix monads)
+  #:use-module (guix gexp)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -75,7 +76,7 @@
   ;; denominator between Guile 2.0 and 2.2.
   ''("-Wunbound-variable" "-Warity-mismatch" "-Wformat"))
 
-(define* (guile-build store name inputs
+(define* (guile-build name inputs
                       #:key source
                       (guile #f)
                       (phases '%standard-phases)
@@ -91,47 +92,34 @@
                                  (guix build utils))))
   "Build SOURCE using Guile taken from the native inputs, and with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (guile-build #:name ,name
-                    #:source ,(match (assoc-ref inputs "source")
-                                (((? derivation? source))
-                                 (derivation->output-path source))
-                                ((source)
-                                 source)
-                                (source
-                                 source))
-                    #:source-directory ,source-directory
-                    #:scheme-file-regexp ,scheme-file-regexp
-                    #:not-compiled-file-regexp ,not-compiled-file-regexp
-                    #:compile-flags ,compile-flags
-                    #:phases ,phases
-                    #:system ,system
-                    #:outputs %outputs
-                    #:search-paths ',(map search-path-specification->sexp
-                                          search-paths)
-                    #:inputs %build-inputs)))
-
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
-
-(define* (guile-cross-build store name
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@modules)
+
+          (guile-build #:name #$name
+                       #:source #+source
+                       #:source-directory #$source-directory
+                       #:scheme-file-regexp #$scheme-file-regexp
+                       #:not-compiled-file-regexp #$not-compiled-file-regexp
+                       #:compile-flags #$compile-flags
+                       #:phases #$phases
+                       #:system #$system
+                       #:outputs #$(outputs->gexp outputs)
+                       #:inputs #$(input-tuples->gexp inputs)
+                       #:search-paths '#$(map search-path-specification->sexp
+                                              search-paths)))))
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target #f
+                      #:guile-for-build guile)))
+
+(define* (guile-cross-build name
                             #:key
                             (system (%current-system)) target
-                            native-drvs target-drvs
+                            build-inputs target-inputs host-inputs
                             (guile #f)
                             source
                             (outputs '("out"))
@@ -146,68 +134,42 @@
                             (modules '((guix build guile-build-system)
                                        (guix build utils))))
   (define builder
-    `(begin
-       (use-modules ,@modules)
-
-       (let ()
-         (define %build-host-inputs
-           ',(map (match-lambda
-                    ((name (? derivation? drv) sub ...)
-                     `(,name . ,(apply derivation->output-path drv sub)))
-                    ((name path)
-                     `(,name . ,path)))
-                  native-drvs))
-
-         (define %build-target-inputs
-           ',(map (match-lambda
-                    ((name (? derivation? drv) sub ...)
-                     `(,name . ,(apply derivation->output-path drv sub)))
-                    ((name (? package? pkg) sub ...)
-                     (let ((drv (package-cross-derivation store pkg
-                                                          target system)))
-                       `(,name . ,(apply derivation->output-path drv sub))))
-                    ((name path)
-                     `(,name . ,path)))
-                  target-drvs))
-
-         (guile-build #:source ,(match (assoc-ref native-drvs "source")
-                                  (((? derivation? source))
-                                   (derivation->output-path source))
-                                  ((source)
-                                   source)
-                                  (source
-                                   source))
-                      #:system ,system
-                      #:target ,target
-                      #:outputs %outputs
-                      #:source-directory ,source-directory
-                      #:not-compiled-file-regexp ,not-compiled-file-regexp
-                      #:compile-flags ,compile-flags
-                      #:inputs %build-target-inputs
-                      #:native-inputs %build-host-inputs
-                      #:search-paths ',(map search-path-specification->sexp
-                                            search-paths)
-                      #:native-search-paths ',(map
-                                               search-path-specification->sexp
-                                               native-search-paths)
-                      #:phases ,phases))))
-
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs (append native-drvs target-drvs)
-                                #:outputs outputs
-                                #:modules imported-modules
-                                #:substitutable? substitutable?
-                                #:guile-for-build guile-for-build))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@modules)
+
+          (define %build-host-inputs
+            #+(input-tuples->gexp build-inputs))
+
+          (define %build-target-inputs
+            (append #$(input-tuples->gexp host-inputs)
+                    #+(input-tuples->gexp target-inputs)))
+
+          (define %outputs
+            #$(outputs->gexp outputs))
+
+          (guile-build #:source #+source
+                       #:system #$system
+                       #:target #$target
+                       #:outputs %outputs
+                       #:source-directory #$source-directory
+                       #:not-compiled-file-regexp #$not-compiled-file-regexp
+                       #:compile-flags #$compile-flags
+                       #:inputs %build-target-inputs
+                       #:native-inputs %build-host-inputs
+                       #:search-paths '#$(map search-path-specification->sexp
+                                              search-paths)
+                       #:native-search-paths '#$(map
+                                                 search-path-specification->sexp
+                                                 native-search-paths)
+                       #:phases #$phases))))
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target target
+                      #:guile-for-build guile)))
 
 (define guile-build-system
   (build-system
diff --git a/guix/build-system/haskell.scm b/guix/build-system/haskell.scm
index 18a584f782..3770304745 100644
--- a/guix/build-system/haskell.scm
+++ b/guix/build-system/haskell.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
 ;;; Copyright © 2020 Timothy Sample <samplet@ngyro.com>
 ;;; Copyright © 2020 Simon Tournier <zimon.toutoune@gmail.com>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -22,7 +23,8 @@
   #:use-module (guix store)
   #:use-module (guix utils)
   #:use-module (guix packages)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix download)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
@@ -116,7 +118,7 @@ version REVISION."
                                (cons name propagated-names))))))
                        extra-directories))))))))
 
-(define* (haskell-build store name inputs
+(define* (haskell-build name inputs
                         #:key source
                         (haddock? #t)
                         (haddock-flags ''())
@@ -127,8 +129,7 @@ version REVISION."
                         (parallel-build? #f)
                         (configure-flags ''())
                         (extra-directories ''())
-                        (phases '(@ (guix build haskell-build-system)
-                                    %standard-phases))
+                        (phases '%standard-phases)
                         (outputs '("out" "static"))
                         (search-paths '())
                         (system (%current-system))
@@ -139,50 +140,43 @@ version REVISION."
   "Build SOURCE using HASKELL, and with INPUTS.  This assumes that SOURCE
 provides a 'Setup.hs' file as its build system."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (haskell-build #:name ,name
-                      #:source ,(match (assoc-ref inputs "source")
-                                  (((? derivation? source))
-                                   (derivation->output-path source))
-                                  ((source)
-                                   source)
-                                  (source
-                                   source))
-                      #:cabal-revision ,(match (assoc-ref inputs
-                                                          "cabal-revision")
-                                          (((? derivation? revision))
-                                           (derivation->output-path revision))
-                                          (revision revision))
-                      #:configure-flags ,configure-flags
-                      #:extra-directories ,extra-directories
-                      #:haddock-flags ,haddock-flags
-                      #:system ,system
-                      #:test-target ,test-target
-                      #:tests? ,tests?
-                      #:parallel-build? ,parallel-build?
-                      #:haddock? ,haddock?
-                      #:phases ,phases
-                      #:outputs %outputs
-                      #:search-paths ',(map search-path-specification->sexp
-                                            search-paths)
-                      #:inputs %build-inputs)))
-
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+
+          #$(with-build-variables inputs outputs
+              #~(haskell-build #:name #$name
+                               #:source #+source
+
+                               ;; XXX: INPUTS contains <gexp-input> records as
+                               ;; opposed to raw lowerable objects, hence the
+                               ;; use of ungexp-splicing.
+                               #:cabal-revision
+                               #$@(match (assoc-ref inputs "cabal-revision")
+                                    (#f '(#f))
+                                    (lst lst))
+
+                               #:configure-flags #$configure-flags
+                               #:extra-directories #$extra-directories
+                               #:extra-directories #$extra-directories
+                               #:haddock-flags #$haddock-flags
+                               #:system #$system
+                               #:test-target #$test-target
+                               #:tests? #$tests?
+                               #:parallel-build? #$parallel-build?
+                               #:haddock? #$haddock?
+                               #:phases #$phases
+                               #:outputs #$(outputs->gexp outputs)
+                               #:search-paths '#$(sexp->gexp
+                                                  (map search-path-specification->sexp
+                                                       search-paths))
+                               #:inputs #$(input-tuples->gexp inputs))))))
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define haskell-build-system
   (build-system
diff --git a/guix/build-system/julia.scm b/guix/build-system/julia.scm
index 63cb7cd864..5b824d7f0a 100644
--- a/guix/build-system/julia.scm
+++ b/guix/build-system/julia.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019 Nicolò Balzarotti <nicolo@nixo.xyz>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,7 +21,8 @@
   #:use-module (guix store)
   #:use-module (guix utils)
   #:use-module (guix packages)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -73,11 +75,10 @@
          (build julia-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (julia-build store name inputs
+(define* (julia-build name inputs
                       #:key source
                       (tests? #t)
-                      (phases '(@ (guix build julia-build-system)
-                                  %standard-phases))
+                      (phases '%standard-phases)
                       (outputs '("out"))
                       (search-paths '())
                       (system (%current-system))
@@ -88,40 +89,26 @@
                                  (guix build utils))))
   "Build SOURCE using Julia, and with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (julia-build #:name ,name
-                    #:source ,(match (assoc-ref inputs "source")
-                                (((? derivation? source))
-                                 (derivation->output-path source))
-                                ((source)
-                                 source)
-                                (source
-                                 source))
-                    #:system ,system
-                    #:tests? ,tests?
-                    #:phases ,phases
-                    #:outputs %outputs
-                    #:search-paths ',(map search-path-specification->sexp
-                                          search-paths)
-                    #:inputs %build-inputs
-                    #:julia-package-name ,julia-package-name)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (julia-build #:name #$name
+                       #:source #+source
+                       #:system #$system
+                       #:tests? #$tests?
+                       #:phases #$phases
+                       #:outputs #$(outputs->gexp outputs)
+                       #:search-paths '#$(sexp->gexp
+                                          (map search-path-specification->sexp
+                                               search-paths))
+                       #:inputs #$(input-tuples->gexp inputs)
+                       #:julia-package-name #$julia-package-name))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define julia-build-system
   (build-system
diff --git a/guix/build-system/linux-module.scm b/guix/build-system/linux-module.scm
index fc3d959ce7..84570b923a 100644
--- a/guix/build-system/linux-module.scm
+++ b/guix/build-system/linux-module.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019 Danny Milosavljevic <dannym@scratchpost.org>
 ;;; Copyright © 2020 Mathieu Othacehe <m.othacehe@gmail.com>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,7 +21,8 @@
 (define-module (guix build-system linux-module)
   #:use-module (guix store)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -114,7 +116,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    `(#:source #:target #:gcc #:kmod #:linux #:inputs #:native-inputs
+    `(#:target #:gcc #:kmod #:linux #:inputs #:native-inputs
       ,@(if target '() '(#:target))))
 
   (bag
@@ -148,13 +150,12 @@
     (build (if target linux-module-build-cross linux-module-build))
     (arguments (strip-keyword-arguments private-keywords arguments))))
 
-(define* (linux-module-build store name inputs
+(define* (linux-module-build name inputs
                              #:key
-                             target
+                             source target
                              (search-paths '())
                              (tests? #t)
-                             (phases '(@ (guix build linux-module-build-system)
-                                         %standard-phases))
+                             (phases '%standard-phases)
                              (outputs '("out"))
                              (make-flags ''())
                              (system (%current-system))
@@ -166,56 +167,42 @@
                                         (guix build utils))))
   "Build SOURCE using LINUX, and with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (linux-module-build #:name ,name
-                     #:source ,(match (assoc-ref inputs "source")
-                                      (((? derivation? source))
-                                       (derivation->output-path source))
-                                      ((source)
-                                       source)
-                                      (source
-                                        source))
-                     #:search-paths ',(map search-path-specification->sexp
-                                           search-paths)
-                     #:phases ,phases
-                     #:system ,system
-                     #:target ,target
-                     #:arch ,(system->arch (or target system))
-                     #:tests? ,tests?
-                     #:outputs %outputs
-                     #:make-flags ,make-flags
-                     #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (linux-module-build #:name #$name
+                              #:source #+source
+                              #:search-paths '#$(sexp->gexp
+                                                 (map search-path-specification->sexp
+                                                      search-paths))
+                              #:phases #$phases
+                              #:system #$system
+                              #:target #$target
+                              #:arch #$(system->arch (or target system))
+                              #:tests? #$tests?
+                              #:outputs #$(outputs->gexp outputs)
+                              #:make-flags #$make-flags
+                              #:inputs #$(input-tuples->gexp inputs)))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs inputs
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build
-                                #:substitutable? substitutable?))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile
+                      #:substitutable? substitutable?)))
 
 (define* (linux-module-build-cross
-          store name
+          name
           #:key
-          target native-drvs target-drvs
+          source target
+          build-inputs target-inputs host-inputs
           (guile #f)
           (outputs '("out"))
           (make-flags ''())
           (search-paths '())
           (native-search-paths '())
           (tests? #f)
-          (phases '(@ (guix build linux-module-build-system)
-                      %standard-phases))
+          (phases '%standard-phases)
           (system (%current-system))
           (substitutable? #t)
           (imported-modules
@@ -223,70 +210,43 @@
           (modules '((guix build linux-module-build-system)
                      (guix build utils))))
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (let ()
-         (define %build-host-inputs
-           ',(map (match-lambda
-                    ((name (? derivation? drv) sub ...)
-                     `(,name . ,(apply derivation->output-path drv sub)))
-                    ((name path)
-                     `(,name . ,path)))
-                  native-drvs))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
 
-         (define %build-target-inputs
-           ',(map (match-lambda
-                    ((name (? derivation? drv) sub ...)
-                     `(,name . ,(apply derivation->output-path drv sub)))
-                    ((name (? package? pkg) sub ...)
-                     (let ((drv (package-cross-derivation store pkg
-                                                          target system)))
-                       `(,name . ,(apply derivation->output-path drv sub))))
-                    ((name path)
-                     `(,name . ,path)))
-                  target-drvs))
+          (define %build-host-inputs
+            '#+(input-tuples->gexp build-inputs))
 
-         (linux-module-build #:name ,name
-                             #:source ,(match (assoc-ref native-drvs "source")
-                                         (((? derivation? source))
-                                          (derivation->output-path source))
-                                         ((source)
-                                          source)
-                                         (source
-                                          source))
-                             #:system ,system
-                             #:target ,target
-                             #:arch ,(system->arch (or target system))
-                             #:outputs %outputs
-                             #:make-flags ,make-flags
-                             #:inputs %build-target-inputs
-                             #:native-inputs %build-host-inputs
-                             #:search-paths
-                             ',(map search-path-specification->sexp
-                                    search-paths)
-                             #:native-search-paths
-                             ',(map
-                                search-path-specification->sexp
-                                native-search-paths)
-                             #:phases ,phases
-                             #:tests? ,tests?))))
+          (define %build-target-inputs
+            (append #$(input-tuples->gexp host-inputs)
+                    #+(input-tuples->gexp target-inputs)))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
+          (linux-module-build #:name #$name
+                              #:source #+source
+                              #:system #$system
+                              #:target #$target
+                              #:arch #$(system->arch (or target system))
+                              #:outputs #$(outputs->gexp outputs)
+                              #:make-flags #$make-flags
+                              #:inputs %build-target-inputs
+                              #:native-inputs %build-host-inputs
+                              #:search-paths
+                              '#$(sexp->gexp
+                                  (map search-path-specification->sexp
+                                       search-paths))
+                              #:native-search-paths
+                              '#$(map
+                                  search-path-specification->sexp
+                                  native-search-paths)
+                              #:phases #$phases
+                              #:tests? #$tests?))))
 
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs (append native-drvs target-drvs)
-                                #:outputs outputs
-                                #:modules imported-modules
-                                #:guile-for-build guile-for-build
-                                #:substitutable? substitutable?))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile
+                      #:substitutable? substitutable?)))
 
 (define linux-module-build-system
   (build-system
diff --git a/guix/build-system/maven.scm b/guix/build-system/maven.scm
index 2dceefccc1..0af5922692 100644
--- a/guix/build-system/maven.scm
+++ b/guix/build-system/maven.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2020 Julien Lepiller <julien@lepiller.eu>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -19,7 +20,8 @@
 (define-module (guix build-system maven)
   #:use-module (guix store)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -119,7 +121,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:jdk #:maven #:maven-plugins #:inputs #:native-inputs))
+    '(#:target #:jdk #:maven #:maven-plugins #:inputs #:native-inputs))
 
   (and (not target)                               ;XXX: no cross-compilation
        (bag
@@ -140,70 +142,56 @@
          (build maven-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (maven-build store name inputs
-                       #:key (guile #f)
-                       (outputs '("out"))
-                       (search-paths '())
-                       (out-of-source? #t)
-                       (validate-runpath? #t)
-                       (patch-shebangs? #t)
-                       (strip-binaries? #t)
-                       (exclude %default-exclude)
-                       (local-packages '())
-                       (tests? #t)
-                       (strip-flags ''("--strip-debug"))
-                       (strip-directories ''("lib" "lib64" "libexec"
-                                             "bin" "sbin"))
-                       (phases '(@ (guix build maven-build-system)
-                                   %standard-phases))
-                       (system (%current-system))
-                       (imported-modules %maven-build-system-modules)
-                       (modules '((guix build maven-build-system)
-                                  (guix build maven pom)
-                                  (guix build utils))))
+(define* (maven-build name inputs
+                      #:key
+                      source (guile #f)
+                      (outputs '("out"))
+                      (search-paths '())
+                      (out-of-source? #t)
+                      (validate-runpath? #t)
+                      (patch-shebangs? #t)
+                      (strip-binaries? #t)
+                      (exclude %default-exclude)
+                      (local-packages '())
+                      (tests? #t)
+                      (strip-flags ''("--strip-debug"))
+                      (strip-directories ''("lib" "lib64" "libexec"
+                                            "bin" "sbin"))
+                      (phases '%standard-phases)
+                      (system (%current-system))
+                      (imported-modules %maven-build-system-modules)
+                      (modules '((guix build maven-build-system)
+                                 (guix build maven pom)
+                                 (guix build utils))))
   "Build SOURCE using PATCHELF, and with INPUTS. This assumes that SOURCE
 provides its own binaries."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (maven-build #:source ,(match (assoc-ref inputs "source")
-                                 (((? derivation? source))
-                                  (derivation->output-path source))
-                                 ((source)
-                                  source)
-                                 (source
-                                  source))
-                     #:system ,system
-                     #:outputs %outputs
-                     #:inputs %build-inputs
-                     #:search-paths ',(map search-path-specification->sexp
-                                           search-paths)
-                     #:phases ,phases
-                     #:exclude (quote ,exclude)
-                     #:local-packages (quote ,local-packages)
-                     #:tests? ,tests?
-                     #:out-of-source? ,out-of-source?
-                     #:validate-runpath? ,validate-runpath?
-                     #:patch-shebangs? ,patch-shebangs?
-                     #:strip-binaries? ,strip-binaries?
-                     #:strip-flags ,strip-flags
-                     #:strip-directories ,strip-directories)))
-
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs inputs
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (maven-build #:source #+source
+                       #:system #$system
+                       #:outputs #$(outputs->gexp outputs)
+                       #:inputs #$(input-tuples->gexp inputs)
+                       #:search-paths '#$(sexp->gexp
+                                          (map search-path-specification->sexp
+                                               search-paths))
+                       #:phases #$phases
+                       #:exclude '#$exclude
+                       #:local-packages '#$local-packages
+                       #:tests? #$tests?
+                       #:out-of-source? #$out-of-source?
+                       #:validate-runpath? #$validate-runpath?
+                       #:patch-shebangs? #$patch-shebangs?
+                       #:strip-binaries? #$strip-binaries?
+                       #:strip-flags #$(sexp->gexp strip-flags)
+                       #:strip-directories #$(sexp->gexp strip-directories)))))
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define maven-build-system
   (build-system
diff --git a/guix/build-system/meson.scm b/guix/build-system/meson.scm
index b68bcb80de..dae0abde94 100644
--- a/guix/build-system/meson.scm
+++ b/guix/build-system/meson.scm
@@ -1,6 +1,8 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Peter Mikkelsen <petermikkelsen10@gmail.com>
 ;;; Copyright © 2018, 2019 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -18,9 +20,10 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (guix build-system meson)
-  #:use-module (guix store)
+  #:use-module (guix gexp)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix store)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -28,7 +31,8 @@
   #:use-module (guix packages)
   #:use-module (ice-9 match)
   #:export (%meson-build-system-modules
-            meson-build-system))
+            meson-build-system
+            make-cross-file))
 
 ;; Commentary:
 ;;
@@ -38,6 +42,68 @@
 ;;
 ;; Code:
 
+(define (make-machine-alist triplet)
+  "Make an association list describing what should go into
+the ‘host_machine’ section of the cross file when cross-compiling
+for TRIPLET."
+  `((system . ,(cond ((target-hurd? triplet) "gnu")
+                     ((target-linux? triplet) "linux")
+                     ((target-mingw? triplet) "windows")
+                     (#t (error "meson: unknown operating system"))))
+    (cpu_family . ,(cond ((target-x86-32? triplet) "x86")
+                         ((target-x86-64? triplet) "x86_64")
+                         ((target-arm32? triplet) "arm")
+                         ((target-aarch64? triplet) "aarch64")
+                         ((target-powerpc? triplet)
+                          (if (target-64bit? triplet)
+                              "ppc64"
+                              "ppc"))
+                         (#t (error "meson: unknown architecture"))))
+    (cpu . ,(cond ((target-x86-32? triplet) ; i386, ..., i686
+                   (substring triplet 0 4))
+                  ((target-x86-64? triplet) "x86_64")
+                  ((target-aarch64? triplet) "armv8-a")
+                  ((target-arm32? triplet) "armv7")
+                  ;; According to #mesonbuild on OFTC, there does not appear
+                  ;; to be an official-ish list of CPU types recognised by
+                  ;; Meson, the "cpu" field is not used by Meson itself and
+                  ;; most software doesn't look at this field, except perhaps
+                  ;; for selecting optimisations, so set it to something
+                  ;; arbitrary.
+                  (#t "strawberries")))
+    (endian . ,(cond ((string-prefix? "powerpc64le-" triplet) "little")
+                     ((string-prefix? "mips64el-" triplet) "little")
+                     ((target-x86-32? triplet) "little")
+                     ((target-x86-64? triplet) "little")
+                     ;; At least in Guix.  Aarch64 and 32-bit arm
+                     ;; have a big-endian mode as well.
+                     ((target-arm? triplet) "little")
+                     (#t (error "meson: unknown architecture"))))))
+
+(define (make-binaries-alist triplet)
+  "Make an associatoin list describing what should go into
+the ‘binaries’ section of the cross file when cross-compiling for
+TRIPLET."
+  `((c . ,(cc-for-target triplet))
+    (cpp . ,(cxx-for-target triplet))
+    (pkgconfig . ,(pkg-config-for-target triplet))
+    (objcopy . ,(string-append triplet "-objcopy"))
+    (ar . ,(string-append triplet "-ar"))
+    (ld . ,(string-append triplet "-ld"))
+    (strip . ,(string-append triplet "-strip"))))
+
+(define (make-cross-file triplet)
+  (computed-file "cross-file"
+    (with-imported-modules '((guix build meson-configuration))
+      #~(begin
+          (use-modules (guix build meson-configuration))
+          (call-with-output-file #$output
+            (lambda (port)
+              (write-section-header port "host_machine")
+              (write-assignments port '#$(make-machine-alist triplet))
+              (write-section-header port "binaries")
+              (write-assignments port '#$(make-binaries-alist triplet))))))))
+
 (define %meson-build-system-modules
   ;; Build-side modules imported by default.
   `((guix build meson-build-system)
@@ -55,7 +121,7 @@
   "Return the default meson package."
   ;; Lazily resolve the binding to avoid a circular dependency.
   (let ((module (resolve-interface '(gnu packages build-tools))))
-    (module-ref module 'meson-for-build)))
+    (module-ref module 'meson)))
 
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
@@ -66,27 +132,38 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    `(#:source #:meson #:ninja #:inputs #:native-inputs #:outputs #:target))
-
-  (and (not target) ;; TODO: add support for cross-compilation.
-       (bag
-         (name name)
-         (system system)
-         (build-inputs `(("meson" ,meson)
-                         ("ninja" ,ninja)
-                         ,@native-inputs
-                         ,@inputs
-                         ;; Keep the standard inputs of 'gnu-build-system'.
-                         ,@(standard-packages)))
-         (host-inputs (if source
-                          `(("source" ,source))
-                          '()))
-         (outputs outputs)
-         (build meson-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
-
-(define* (meson-build store name inputs
-                      #:key (guile #f)
+    `(#:meson #:ninja #:inputs #:native-inputs #:outputs
+      ,@(if target
+            '()
+            '(#:target))))
+
+  (bag
+    (name name)
+    (system system) (target target)
+    (build-inputs `(("meson" ,meson)
+                    ("ninja" ,ninja)
+                    ,@native-inputs
+                    ,@(if target '() inputs)
+                    ;; Keep the standard inputs of 'gnu-build-system'.
+                    ,@(if target
+                          (standard-cross-packages target 'host)
+                          '())
+                    ,@(standard-packages)))
+    (host-inputs `(,@(if source
+                         `(("source" ,source))
+                         '())
+                   ,@(if target inputs '())))
+    ;; Keep the standard inputs of 'gnu-buid-system'.
+    (target-inputs (if target
+                       (standard-cross-packages target 'target)
+                       '()))
+    (outputs outputs)
+    (build (if target meson-cross-build meson-build))
+    (arguments (strip-keyword-arguments private-keywords arguments))))
+
+(define* (meson-build name inputs
+                      #:key
+                      guile source
                       (outputs '("out"))
                       (configure-flags ''())
                       (search-paths '())
@@ -104,8 +181,7 @@
                                             "bin" "sbin"))
                       (elf-directories ''("lib" "lib64" "libexec"
                                           "bin" "sbin"))
-                      (phases '(@ (guix build meson-build-system)
-                                  %standard-phases))
+                      (phases '%standard-phases)
                       (system (%current-system))
                       (imported-modules %meson-build-system-modules)
                       (modules '((guix build meson-build-system)
@@ -114,76 +190,147 @@
                       disallowed-references)
   "Build SOURCE using MESON, and with INPUTS, assuming that SOURCE
 has a 'meson.build' file."
+  (define builder
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+
+          (define build-phases
+            #$(let ((phases (if (pair? phases) (sexp->gexp phases) phases)))
+                (if glib-or-gtk?
+                    phases
+                    #~(modify-phases #$phases
+                        (delete 'glib-or-gtk-compile-schemas)
+                        (delete 'glib-or-gtk-wrap)))))
+
+          #$(with-build-variables inputs outputs
+              #~(meson-build #:source #+source
+                             #:system #$system
+                             #:outputs %outputs
+                             #:inputs %build-inputs
+                             #:search-paths '#$(sexp->gexp
+                                                (map search-path-specification->sexp
+                                                     search-paths))
+                             #:phases build-phases
+                             #:configure-flags #$(sexp->gexp configure-flags)
+                             #:build-type #$build-type
+                             #:tests? #$tests?
+                             #:test-target #$test-target
+                             #:parallel-build? #$parallel-build?
+                             #:parallel-tests? #$parallel-tests?
+                             #:validate-runpath? #$validate-runpath?
+                             #:patch-shebangs? #$patch-shebangs?
+                             #:strip-binaries? #$strip-binaries?
+                             #:strip-flags #$(sexp->gexp strip-flags)
+                             #:strip-directories #$(sexp->gexp strip-directories)
+                             #:elf-directories #$(sexp->gexp elf-directories))))))
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target #f
+                      #:substitutable? substitutable?
+                      #:allowed-references allowed-references
+                      #:disallowed-references disallowed-references
+                      #:guile-for-build guile)))
 
-  ;; TODO: Copied from build-system/gnu, factorize this!
-  (define canonicalize-reference
-    (match-lambda
-     ((? package? p)
-      (derivation->output-path (package-derivation store p system
-                                                   #:graft? #f)))
-     (((? package? p) output)
-      (derivation->output-path (package-derivation store p system
-                                                   #:graft? #f)
-                               output))
-     ((? string? output)
-      output)))
+(define* (meson-cross-build name
+                            #:key
+                            target
+                            build-inputs host-inputs target-inputs
+                            guile source
+                            (outputs '("out"))
+                            (configure-flags ''())
+                            (search-paths '())
+                            (native-search-paths '())
 
+                            (build-type "debugoptimized")
+                            (tests? #f)
+                            (test-target "test")
+                            (glib-or-gtk? #f)
+                            (parallel-build? #t)
+                            (parallel-tests? #f)
+                            (validate-runpath? #t)
+                            (patch-shebangs? #t)
+                            (strip-binaries? #t)
+                            (strip-flags ''("--strip-debug"))
+                            (strip-directories ''("lib" "lib64" "libexec"
+                                                  "bin" "sbin"))
+                            (elf-directories ''("lib" "lib64" "libexec"
+                                                "bin" "sbin"))
+                            ;; See 'gnu-cross-build' for why this needs to be
+                            ;; disabled when cross-compiling.
+                            (make-dynamic-linker-cache? #f)
+                            (phases '%standard-phases)
+                            (system (%current-system))
+                            (imported-modules %meson-build-system-modules)
+                            (modules '((guix build meson-build-system)
+                                       (guix build utils)))
+                            allowed-references
+                            disallowed-references)
+  "Cross-build SOURCE for TARGET using MESON, and with INPUTS, assuming that
+SOURCE has a 'meson.build' file."
+  (define cross-file
+    (make-cross-file target))
+  (define inputs
+    (if (null? target-inputs)
+        (input-tuples->gexp host-inputs)
+        #~(append #$(input-tuples->gexp host-inputs)
+                  #+(input-tuples->gexp target-inputs))))
   (define builder
-    `(let ((build-phases (if ,glib-or-gtk?
-                             ,phases
-                             (modify-phases ,phases
-                               (delete 'glib-or-gtk-compile-schemas)
-                               (delete 'glib-or-gtk-wrap)))))
-       (use-modules ,@modules)
-       (meson-build #:source ,(match (assoc-ref inputs "source")
-                                (((? derivation? source))
-                                 (derivation->output-path source))
-                                ((source)
-                                 source)
-                                (source
-                                 source))
-                    #:system ,system
-                    #:outputs %outputs
-                    #:inputs %build-inputs
-                    #:search-paths ',(map search-path-specification->sexp
-                                          search-paths)
-                    #:phases build-phases
-                    #:configure-flags ,configure-flags
-                    #:build-type ,build-type
-                    #:tests? ,tests?
-                    #:test-target ,test-target
-                    #:parallel-build? ,parallel-build?
-                    #:parallel-tests? ,parallel-tests?
-                    #:validate-runpath? ,validate-runpath?
-                    #:patch-shebangs? ,patch-shebangs?
-                    #:strip-binaries? ,strip-binaries?
-                    #:strip-flags ,strip-flags
-                    #:strip-directories ,strip-directories
-                    #:elf-directories ,elf-directories)))
-
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs inputs
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build
-                                #:allowed-references
-                                (and allowed-references
-                                     (map canonicalize-reference
-                                          allowed-references))
-                                #:disallowed-references
-                                (and disallowed-references
-                                     (map canonicalize-reference
-                                          disallowed-references))))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+
+          (define build-phases
+            #$(let ((phases (if (pair? phases) (sexp->gexp phases) phases)))
+                (if glib-or-gtk?
+                    phases
+                    #~(modify-phases #$phases
+                        (delete 'glib-or-gtk-compile-schemas)
+                        (delete 'glib-or-gtk-wrap)))))
+
+          ;; Do not use 'with-build-variables', as there should be
+          ;; no reason to use %build-inputs and friends.
+          (meson-build #:source #+source
+                       #:system #$system
+                       #:build #$(nix-system->gnu-triplet system)
+                       #:target #$target
+                       #:outputs #$(outputs->gexp outputs)
+                       #:inputs #$inputs
+                       #:native-inputs #+(input-tuples->gexp build-inputs)
+                       #:search-paths '#$(sexp->gexp
+                                          (map search-path-specification->sexp
+                                                     search-paths))
+                       #:native-search-paths '#$(sexp->gexp
+                                                 (map search-path-specification->sexp
+                                                      native-search-paths))
+                       #:phases build-phases
+                       #:make-dynamic-linker-cache? #$make-dynamic-linker-cache?
+                       #:configure-flags `("--cross-file" #+cross-file
+                                           ,@#$(sexp->gexp configure-flags))
+                       #:build-type #$build-type
+                       #:tests? #$tests?
+                       #:test-target #$test-target
+                       #:parallel-build? #$parallel-build?
+                       #:parallel-tests? #$parallel-tests?
+                       #:validate-runpath? #$validate-runpath?
+                       #:patch-shebangs? #$patch-shebangs?
+                       #:strip-binaries? #$strip-binaries?
+                       #:strip-flags #$(sexp->gexp strip-flags)
+                       #:strip-directories #$(sexp->gexp strip-directories)
+                       #:elf-directories #$(sexp->gexp elf-directories)))))
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target target
+                      #:substitutable? substitutable?
+                      #:allowed-references allowed-references
+                      #:disallowed-references disallowed-references
+                      #:guile-for-build guile)))
 
 (define meson-build-system
   (build-system
diff --git a/guix/build-system/minify.scm b/guix/build-system/minify.scm
index 9d53760685..7d4745ab32 100644
--- a/guix/build-system/minify.scm
+++ b/guix/build-system/minify.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,7 +21,8 @@
   #:use-module (guix store)
   #:use-module (guix utils)
   #:use-module (guix packages)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -54,7 +56,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:inputs #:native-inputs))
+    '(#:target #:inputs #:native-inputs))
 
   (bag
     (name name)
@@ -70,11 +72,11 @@
     (build minify-build)
     (arguments (strip-keyword-arguments private-keywords arguments))))
 
-(define* (minify-build store name inputs
+(define* (minify-build name inputs
                        #:key
+                       source
                        (javascript-files #f)
-                       (phases '(@ (guix build minify-build-system)
-                                   %standard-phases))
+                       (phases '%standard-phases)
                        (outputs '("out"))
                        (system (%current-system))
                        search-paths
@@ -84,38 +86,24 @@
                                   (guix build utils))))
   "Build SOURCE with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (minify-build #:name ,name
-                     #:source ,(match (assoc-ref inputs "source")
-                                 (((? derivation? source))
-                                  (derivation->output-path source))
-                                 ((source)
-                                  source)
-                                 (source
-                                  source))
-                     #:javascript-files ,javascript-files
-                     #:phases ,phases
-                     #:outputs %outputs
-                     #:search-paths ',(map search-path-specification->sexp
-                                           search-paths)
-                     #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (minify-build #:name #$name
+                        #:source #+source
+                        #:javascript-files #$javascript-files
+                        #:phases #$phases
+                        #:outputs #$(outputs->gexp outputs)
+                        #:search-paths '#$(sexp->gexp
+                                           (map search-path-specification->sexp
+                                                search-paths))
+                        #:inputs #$(input-tuples->gexp inputs)))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                               ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define minify-build-system
   (build-system
diff --git a/guix/build-system/node.scm b/guix/build-system/node.scm
index 98f63f87ef..735f8dd06e 100644
--- a/guix/build-system/node.scm
+++ b/guix/build-system/node.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016 Jelle Licht <jlicht@fsfe.org>
 ;;; Copyright © 2019 Timothy Sample <samplet@ngyro.com>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -18,9 +19,11 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (guix build-system node)
+  #:use-module (guix store)
   #:use-module (guix utils)
   #:use-module (guix packages)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -48,7 +51,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:node #:inputs #:native-inputs))
+    '(#:target #:node #:inputs #:native-inputs))
 
   (and (not target)                    ;XXX: no cross-compilation
        (bag
@@ -67,12 +70,13 @@
          (build node-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (node-build store name inputs
+(define* (node-build name inputs
                      #:key
+                     source
+                     (npm-flags ''())
                      (test-target "test")
                      (tests? #t)
-                     (phases '(@ (guix build node-build-system)
-                                 %standard-phases))
+                     (phases '%standard-phases)
                      (outputs '("out"))
                      (search-paths '())
                      (system (%current-system))
@@ -82,38 +86,27 @@
                                 (guix build utils))))
   "Build SOURCE using NODE and INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (node-build #:name ,name
-                   #:source ,(match (assoc-ref inputs "source")
-                               (((? derivation? source))
-                                (derivation->output-path source))
-                               ((source) source)
-                               (source source))
-                   #:system ,system
-                   #:test-target ,test-target
-                   #:tests? ,tests?
-                   #:phases ,phases
-                   #:outputs %outputs
-                   #:search-paths ',(map search-path-specification->sexp
-                                         search-paths)
-                   #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (node-build #:name #$name
+                      #:source #+source
+                      #:system #$system
+                      #:npm-flags #$npm-flags
+                      #:test-target #$test-target
+                      #:tests? #$tests?
+                      #:phases #$phases
+                      #:outputs #$(outputs->gexp outputs)
+                      #:search-paths '#$(sexp->gexp
+                                         (map search-path-specification->sexp
+                                              search-paths))
+                      #:inputs #$(input-tuples->gexp inputs)))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define node-build-system
   (build-system
diff --git a/guix/build-system/ocaml.scm b/guix/build-system/ocaml.scm
index 5513216c25..e7d6d96f0e 100644
--- a/guix/build-system/ocaml.scm
+++ b/guix/build-system/ocaml.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016, 2017, 2018 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2017 Ben Woodcroft <donttrustben@gmail.com>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -19,7 +20,7 @@
 (define-module (guix build-system ocaml)
   #:use-module (guix store)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -206,7 +207,7 @@ pre-defined variants."
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:ocaml #:findlib #:inputs #:native-inputs))
+    '(#:target #:ocaml #:findlib #:inputs #:native-inputs))
 
   (and (not target)                               ;XXX: no cross-compilation
        (bag
@@ -226,8 +227,9 @@ pre-defined variants."
          (build ocaml-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (ocaml-build store name inputs
-                      #:key (guile #f)
+(define* (ocaml-build name inputs
+                      #:key
+                      guile source
                       (outputs '("out")) (configure-flags ''())
                       (search-paths '())
                       (make-flags ''())
@@ -253,51 +255,35 @@ pre-defined variants."
   "Build SOURCE using OCAML, and with INPUTS. This assumes that SOURCE
 provides a 'setup.ml' file as its build system."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (ocaml-build #:source ,(match (assoc-ref inputs "source")
-                                (((? derivation? source))
-                                 (derivation->output-path source))
-                                ((source)
-                                 source)
-                                (source
-                                 source))
-                    #:system ,system
-                    #:outputs %outputs
-                    #:inputs %build-inputs
-                    #:search-paths ',(map search-path-specification->sexp
-                                          search-paths)
-                    #:phases ,phases
-                    #:configure-flags ,configure-flags
-                    #:test-flags ,test-flags
-                    #:make-flags ,make-flags
-                    #:build-flags ,build-flags
-                    #:out-of-source? ,out-of-source?
-                    #:use-make? ,use-make?
-                    #:tests? ,tests?
-                    #:test-target ,test-target
-                    #:install-target ,install-target
-                    #:validate-runpath? ,validate-runpath?
-                    #:patch-shebangs? ,patch-shebangs?
-                    #:strip-binaries? ,strip-binaries?
-                    #:strip-flags ,strip-flags
-                    #:strip-directories ,strip-directories)))
-
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs inputs
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@modules)
+          (ocaml-build #:source #$source
+                       #:system #$system
+                       #:outputs #$(outputs->gexp outputs)
+                       #:inputs #$(input-tuples->gexp inputs)
+                       #:search-paths '#$(map search-path-specification->sexp
+                                              search-paths)
+                       #:phases #$phases
+                       #:configure-flags #$configure-flags
+                       #:test-flags #$test-flags
+                       #:make-flags #$make-flags
+                       #:build-flags #$build-flags
+                       #:out-of-source? #$out-of-source?
+                       #:use-make? #$use-make?
+                       #:tests? #$tests?
+                       #:test-target #$test-target
+                       #:install-target #$install-target
+                       #:validate-runpath? #$validate-runpath?
+                       #:patch-shebangs? #$patch-shebangs?
+                       #:strip-binaries? #$strip-binaries?
+                       #:strip-flags #$strip-flags
+                       #:strip-directories #$strip-directories))))
+
+  (gexp->derivation name builder
+                    #:system system
+                    #:target #f
+                    #:guile-for-build guile))
 
 (define ocaml-build-system
   (build-system
diff --git a/guix/build-system/perl.scm b/guix/build-system/perl.scm
index 06af1dd20e..db0a916fb2 100644
--- a/guix/build-system/perl.scm
+++ b/guix/build-system/perl.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -19,6 +19,8 @@
 (define-module (guix build-system perl)
   #:use-module (guix store)
   #:use-module (guix utils)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix derivations)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
@@ -57,7 +59,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:perl #:inputs #:native-inputs))
+    '(#:target #:perl #:inputs #:native-inputs))
 
   (and (not target)                               ;XXX: no cross-compilation
        (bag
@@ -76,8 +78,8 @@
          (build perl-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (perl-build store name inputs
-                     #:key
+(define* (perl-build name inputs
+                     #:key source
                      (search-paths '())
                      (tests? #t)
                      (parallel-build? #t)
@@ -95,46 +97,37 @@
                                 (guix build utils))))
   "Build SOURCE using PERL, and with INPUTS.  This assumes that SOURCE
 provides a `Makefile.PL' file as its build system."
-  (define builder
-    `(begin
-       (use-modules ,@modules)
-       (perl-build #:name ,name
-                   #:source ,(match (assoc-ref inputs "source")
-                               (((? derivation? source))
-                                (derivation->output-path source))
-                               ((source)
-                                source)
-                               (source
-                                source))
-                   #:search-paths ',(map search-path-specification->sexp
-                                         search-paths)
-                   #:make-maker? ,make-maker?
-                   #:make-maker-flags ,make-maker-flags
-                   #:module-build-flags ,module-build-flags
-                   #:phases ,phases
-                   #:system ,system
-                   #:test-target "test"
-                   #:tests? ,tests?
-                   #:parallel-build? ,parallel-build?
-                   #:parallel-tests? ,parallel-tests?
-                   #:outputs %outputs
-                   #:inputs %build-inputs)))
+  (define build
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
+          #$(with-build-variables inputs outputs
+              #~(perl-build #:name #$name
+                            #:source #+source
+                            #:search-paths '#$(sexp->gexp
+                                               (map search-path-specification->sexp
+                                                    search-paths))
+                            #:make-maker? #$make-maker?
+                            #:make-maker-flags #$make-maker-flags
+                            #:module-build-flags #$(sexp->gexp module-build-flags)
+                            #:phases #$(if (pair? phases)
+                                           (sexp->gexp phases)
+                                           phases)
+                            #:system #$system
+                            #:test-target "test"
+                            #:tests? #$tests?
+                            #:parallel-build? #$parallel-build?
+                            #:parallel-tests? #$parallel-tests?
+                            #:outputs %outputs
+                            #:inputs %build-inputs)))))
 
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs inputs
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name build
+                      #:system system
+                      #:target #f
+                      #:guile-for-build guile)))
 
 (define perl-build-system
   (build-system
diff --git a/guix/build-system/python.scm b/guix/build-system/python.scm
index 80895162f8..efade6f74b 100644
--- a/guix/build-system/python.scm
+++ b/guix/build-system/python.scm
@@ -1,7 +1,8 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
+;;; Copyright © 2021 Lars-Dominik Braun <lars@6xq.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -19,9 +20,13 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (guix build-system python)
+  #:use-module ((gnu packages) #:select (search-auxiliary-file))
+  #:use-module (guix gexp)
   #:use-module (guix store)
   #:use-module (guix utils)
   #:use-module (guix memoization)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix packages)
   #:use-module (guix derivations)
   #:use-module (guix search-paths)
@@ -70,6 +75,10 @@ extension, such as '.tar.gz'."
   (let ((python (resolve-interface '(gnu packages python))))
     (module-ref python 'python-2)))
 
+(define sanity-check.py
+  ;; The script used to validate the installation of a Python package.
+  (search-auxiliary-file "python/sanity-check.py"))
+
 (define* (package-with-explicit-python python old-prefix new-prefix
                                        #:key variant-property)
   "Return a procedure of one argument, P.  The procedure creates a package with
@@ -140,7 +149,7 @@ pre-defined variants."
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:python #:inputs #:native-inputs))
+    '(#:target #:python #:inputs #:native-inputs))
 
   (and (not target)                               ;XXX: no cross-compilation
        (bag
@@ -154,19 +163,19 @@ pre-defined variants."
                         ;; Keep the standard inputs of 'gnu-build-system'.
                         ,@(standard-packages)))
          (build-inputs `(("python" ,python)
+                         ("sanity-check.py" ,(local-file sanity-check.py))
                          ,@native-inputs))
          (outputs outputs)
          (build python-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (python-build store name inputs
-                       #:key
+(define* (python-build name inputs
+                       #:key source
                        (tests? #t)
                        (test-target "test")
                        (use-setuptools? #t)
                        (configure-flags ''())
-                       (phases '(@ (guix build python-build-system)
-                                   %standard-phases))
+                       (phases '%standard-phases)
                        (outputs '("out"))
                        (search-paths '())
                        (system (%current-system))
@@ -176,43 +185,35 @@ pre-defined variants."
                                   (guix build utils))))
   "Build SOURCE using PYTHON, and with INPUTS.  This assumes that SOURCE
 provides a 'setup.py' file as its build system."
-  (define builder
-    `(begin
-       (use-modules ,@modules)
-       (python-build #:name ,name
-                     #:source ,(match (assoc-ref inputs "source")
-                                 (((? derivation? source))
-                                  (derivation->output-path source))
-                                 ((source)
-                                  source)
-                                 (source
-                                  source))
-                     #:configure-flags ,configure-flags
-                     #:system ,system
-                     #:test-target ,test-target
-                     #:tests? ,tests?
-                     #:use-setuptools? ,use-setuptools?
-                     #:phases ,phases
-                     #:outputs %outputs
-                     #:search-paths ',(map search-path-specification->sexp
-                                           search-paths)
-                     #:inputs %build-inputs)))
-
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (define build
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+
+          #$(with-build-variables inputs outputs
+              #~(python-build #:name #$name
+                              #:source #+source
+                              #:configure-flags #$configure-flags
+                              #:use-setuptools? #$use-setuptools?
+                              #:system #$system
+                              #:test-target #$test-target
+                              #:tests? #$tests?
+                              #:phases #$(if (pair? phases)
+                                             (sexp->gexp phases)
+                                             phases)
+                              #:outputs %outputs
+                              #:search-paths '#$(sexp->gexp
+                                                 (map search-path-specification->sexp
+                                                      search-paths))
+                              #:inputs %build-inputs)))))
+
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name build
+                      #:system system
+                      #:target #f
+                      #:guile-for-build guile)))
 
 (define python-build-system
   (build-system
diff --git a/guix/build-system/qt.scm b/guix/build-system/qt.scm
index e1368db1d9..003a065aa6 100644
--- a/guix/build-system/qt.scm
+++ b/guix/build-system/qt.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
 ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2019 Hartmut Goebel <h.goebel@crazy-compilers.com>
@@ -23,9 +23,10 @@
 (define-module (guix build-system qt)
   #:use-module (guix store)
   #:use-module (guix utils)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module ((guix build qt-utils)
                 #:select (%qt-wrap-excluded-inputs))
-  #:use-module (guix derivations)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system cmake)
@@ -75,7 +76,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    `(#:source #:cmake #:inputs #:native-inputs #:outputs
+    `(#:cmake #:inputs #:native-inputs #:outputs
       ,@(if target '() '(#:target))))
 
   (bag
@@ -109,8 +110,9 @@
     (arguments (strip-keyword-arguments private-keywords arguments))))
 
 
-(define* (qt-build store name inputs
-                   #:key (guile #f)
+(define* (qt-build name inputs
+                   #:key
+                   source (guile #f)
                    (outputs '("out")) (configure-flags ''())
                    (search-paths '())
                    (make-flags ''())
@@ -125,8 +127,7 @@
                    (strip-flags ''("--strip-debug"))
                    (strip-directories ''("lib" "lib64" "libexec"
                                          "bin" "sbin"))
-                   (phases '(@ (guix build qt-build-system)
-                               %standard-phases))
+                   (phases '%standard-phases)
                    (qt-wrap-excluded-outputs ''())
                    (qt-wrap-excluded-inputs %qt-wrap-excluded-inputs)
                    (system (%current-system))
@@ -136,61 +137,50 @@
   "Build SOURCE using CMAKE, and with INPUTS. This assumes that SOURCE
 provides a 'CMakeLists.txt' file as its build system."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (qt-build #:source ,(match (assoc-ref inputs "source")
-                                  (((? derivation? source))
-                                   (derivation->output-path source))
-                                  ((source)
-                                   source)
-                                  (source
-                                   source))
-                 #:system ,system
-                 #:outputs %outputs
-                 #:inputs %build-inputs
-                 #:search-paths ',(map search-path-specification->sexp
-                                       search-paths)
-                 #:phases ,phases
-                 #:qt-wrap-excluded-outputs ,qt-wrap-excluded-outputs
-                 #:qt-wrap-excluded-inputs ,qt-wrap-excluded-inputs
-                 #:configure-flags ,configure-flags
-                 #:make-flags ,make-flags
-                 #:out-of-source? ,out-of-source?
-                 #:build-type ,build-type
-                 #:tests? ,tests?
-                 #:test-target ,test-target
-                 #:parallel-build? ,parallel-build?
-                 #:parallel-tests? ,parallel-tests?
-                 #:validate-runpath? ,validate-runpath?
-                 #:patch-shebangs? ,patch-shebangs?
-                 #:strip-binaries? ,strip-binaries?
-                 #:strip-flags ,strip-flags
-                 #:strip-directories ,strip-directories)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (qt-build #:source #+source
+                    #:system #$system
+                    #:outputs #$(outputs->gexp outputs)
+                    #:inputs #$(input-tuples->gexp inputs)
+                    #:search-paths '#$(sexp->gexp
+                                       (map search-path-specification->sexp
+                                            search-paths))
+                    #:phases #$(if (pair? phases)
+                                   (sexp->gexp phases)
+                                   phases)
+                    #:qt-wrap-excluded-outputs #$qt-wrap-excluded-outputs
+                    #:qt-wrap-excluded-inputs #$qt-wrap-excluded-inputs
+                    #:configure-flags #$configure-flags
+                    #:make-flags #$make-flags
+                    #:out-of-source? #$out-of-source?
+                    #:build-type #$build-type
+                    #:tests? #$tests?
+                    #:test-target #$test-target
+                    #:parallel-build? #$parallel-build?
+                    #:parallel-tests? #$parallel-tests?
+                    #:validate-runpath? #$validate-runpath?
+                    #:patch-shebangs? #$patch-shebangs?
+                    #:strip-binaries? #$strip-binaries?
+                    #:strip-flags #$strip-flags
+                    #:strip-directories #$strip-directories))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs inputs
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 
 ;;;
 ;;; Cross-compilation.
 ;;;
 
-(define* (qt-cross-build store name
+(define* (qt-cross-build name
                          #:key
-                         target native-drvs target-drvs
+                         source target
+                         build-inputs target-inputs host-inputs
                          (guile #f)
                          (outputs '("out"))
                          (configure-flags ''())
@@ -199,7 +189,7 @@ provides a 'CMakeLists.txt' file as its build system."
                          (make-flags ''())
                          (out-of-source? #t)
                          (build-type "RelWithDebInfo")
-                         (tests? #f) ; nothing can be done
+                         (tests? #f)              ; nothing can be done
                          (test-target "test")
                          (parallel-build? #t) (parallel-tests? #f)
                          (validate-runpath? #t)
@@ -209,8 +199,7 @@ provides a 'CMakeLists.txt' file as its build system."
                                          "--enable-deterministic-archives"))
                          (strip-directories ''("lib" "lib64" "libexec"
                                                "bin" "sbin"))
-                         (phases '(@ (guix build qt-build-system)
-                                     %standard-phases))
+                         (phases '%standard-phases)
                          (system (%current-system))
                          (build (nix-system->gnu-triplet system))
                          (imported-modules %qt-build-system-modules)
@@ -220,77 +209,53 @@ provides a 'CMakeLists.txt' file as its build system."
 with INPUTS.  This assumes that SOURCE provides a 'CMakeLists.txt' file as its
 build system."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (let ()
-         (define %build-host-inputs
-           ',(map (match-lambda
-                    ((name (? derivation? drv) sub ...)
-                     `(,name . ,(apply derivation->output-path drv sub)))
-                    ((name path)
-                     `(,name . ,path)))
-                  native-drvs))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+
+          (define %build-host-inputs
+            #+(input-tuples->gexp build-inputs))
 
-         (define %build-target-inputs
-           ',(map (match-lambda
-                    ((name (? derivation? drv) sub ...)
-                     `(,name . ,(apply derivation->output-path drv sub)))
-                    ((name (? package? pkg) sub ...)
-                     (let ((drv (package-cross-derivation store pkg
-                                                          target system)))
-                       `(,name . ,(apply derivation->output-path drv sub))))
-                    ((name path)
-                     `(,name . ,path)))
-                  target-drvs))
+          (define %build-target-inputs
+            (append #$(input-tuples->gexp host-inputs)
+                    #+(input-tuples->gexp target-inputs)))
 
-         (qt-build #:source ,(match (assoc-ref native-drvs "source")
-                                    (((? derivation? source))
-                                     (derivation->output-path source))
-                                    ((source)
-                                     source)
-                                    (source
-                                     source))
-                   #:system ,system
-                   #:build ,build
-                   #:target ,target
-                   #:outputs %outputs
-                   #:inputs %build-target-inputs
-                   #:native-inputs %build-host-inputs
-                   #:search-paths ',(map search-path-specification->sexp
-                                         search-paths)
-                   #:native-search-paths ',(map
-                                            search-path-specification->sexp
-                                            native-search-paths)
-                   #:phases ,phases
-                   #:configure-flags ,configure-flags
-                   #:make-flags ,make-flags
-                   #:out-of-source? ,out-of-source?
-                   #:build-type ,build-type
-                   #:tests? ,tests?
-                   #:test-target ,test-target
-                   #:parallel-build? ,parallel-build?
-                   #:parallel-tests? ,parallel-tests?
-                   #:validate-runpath? ,validate-runpath?
-                   #:patch-shebangs? ,patch-shebangs?
-                   #:strip-binaries? ,strip-binaries?
-                   #:strip-flags ,strip-flags
-                   #:strip-directories ,strip-directories))))
+          (define %outputs
+            #$(outputs->gexp outputs))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                               ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
+          (qt-build #:source #+source
+                    #:system #$system
+                    #:build #$build
+                    #:target #$target
+                    #:outputs %outputs
+                    #:inputs %build-target-inputs
+                    #:native-inputs %build-host-inputs
+                    #:search-paths '#$(sexp->gexp
+                                       (map search-path-specification->sexp
+                                            search-paths))
+                    #:native-search-paths '#$(map
+                                              search-path-specification->sexp
+                                              native-search-paths)
+                    #:phases #$phases
+                    #:configure-flags #$configure-flags
+                    #:make-flags #$make-flags
+                    #:out-of-source? #$out-of-source?
+                    #:build-type #$build-type
+                    #:tests? #$tests?
+                    #:test-target #$test-target
+                    #:parallel-build? #$parallel-build?
+                    #:parallel-tests? #$parallel-tests?
+                    #:validate-runpath? #$validate-runpath?
+                    #:patch-shebangs? #$patch-shebangs?
+                    #:strip-binaries? #$strip-binaries?
+                    #:strip-flags #$strip-flags
+                    #:strip-directories #$strip-directories))))
 
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs (append native-drvs target-drvs)
-                                #:outputs outputs
-                                #:modules imported-modules
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define qt-build-system
   (build-system
diff --git a/guix/build-system/r.scm b/guix/build-system/r.scm
index 5e4b23c77e..be6a600c28 100644
--- a/guix/build-system/r.scm
+++ b/guix/build-system/r.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015, 2017, 2018, 2019, 2020 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,7 +21,8 @@
   #:use-module (guix store)
   #:use-module (guix utils)
   #:use-module (guix packages)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -82,7 +84,7 @@ release corresponding to NAME and VERSION."
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:r #:inputs #:native-inputs))
+    '(#:target #:r #:inputs #:native-inputs))
 
   (and (not target)                               ;XXX: no cross-compilation
        (bag
@@ -101,13 +103,13 @@ release corresponding to NAME and VERSION."
          (build r-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (r-build store name inputs
+(define* (r-build name inputs
                   #:key
+                  source
                   (tests? #t)
                   (test-target "tests")
                   (configure-flags ''())
-                  (phases '(@ (guix build r-build-system)
-                              %standard-phases))
+                  (phases '%standard-phases)
                   (outputs '("out"))
                   (search-paths '())
                   (system (%current-system))
@@ -118,42 +120,28 @@ release corresponding to NAME and VERSION."
                              (guix build utils))))
   "Build SOURCE with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (r-build #:name ,name
-                #:source ,(match (assoc-ref inputs "source")
-                            (((? derivation? source))
-                             (derivation->output-path source))
-                            ((source)
-                             source)
-                            (source
-                             source))
-                #:configure-flags ,configure-flags
-                #:system ,system
-                #:tests? ,tests?
-                #:test-target ,test-target
-                #:phases ,phases
-                #:outputs %outputs
-                #:search-paths ',(map search-path-specification->sexp
-                                      search-paths)
-                #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (r-build #:name #$name
+                   #:source #+source
+                   #:configure-flags #$configure-flags
+                   #:system #$system
+                   #:tests? #$tests?
+                   #:test-target #$test-target
+                   #:phases #$phases
+                   #:outputs #$(outputs->gexp outputs)
+                   #:search-paths '#$(sexp->gexp
+                                      (map search-path-specification->sexp
+                                           search-paths))
+                   #:inputs #$(input-tuples->gexp inputs)))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build
-                                #:substitutable? substitutable?))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile
+                      #:substitutable? substitutable?)))
 
 (define r-build-system
   (build-system
diff --git a/guix/build-system/rakudo.scm b/guix/build-system/rakudo.scm
index a02e2bad3a..05a4d9c2ad 100644
--- a/guix/build-system/rakudo.scm
+++ b/guix/build-system/rakudo.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -19,7 +20,8 @@
 (define-module (guix build-system rakudo)
   #:use-module (guix store)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -71,7 +73,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:rakudo #:prove6 #:zef #:inputs #:native-inputs))
+    '(#:target #:rakudo #:prove6 #:zef #:inputs #:native-inputs))
 
   (and (not target)                               ;XXX: no cross-compilation
        (bag
@@ -96,12 +98,12 @@
          (build rakudo-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (rakudo-build store name inputs
+(define* (rakudo-build name inputs
                        #:key
+                       source
                        (search-paths '())
                        (tests? #t)
-                       (phases '(@ (guix build rakudo-build-system)
-                                   %standard-phases))
+                       (phases '%standard-phases)
                        (outputs '("out"))
                        (system (%current-system))
                        (guile #f)
@@ -112,39 +114,25 @@
                                   (guix build utils))))
   "Build SOURCE using PERL6, and with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (rakudo-build #:name ,name
-                     #:source ,(match (assoc-ref inputs "source")
-                                      (((? derivation? source))
-                                       (derivation->output-path source))
-                                      ((source)
-                                       source)
-                                      (source
-                                        source))
-                     #:search-paths ',(map search-path-specification->sexp
-                                           search-paths)
-                     #:phases ,phases
-                     #:system ,system
-                     #:tests? ,tests?
-                     #:outputs %outputs
-                     #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (rakudo-build #:name #$name
+                        #:source #+source
+                        #:search-paths '#$(sexp->gexp
+                                           (map search-path-specification->sexp
+                                                search-paths))
+                        #:phases #$phases
+                        #:system #$system
+                        #:tests? #$tests?
+                        #:outputs #$(outputs->gexp outputs)
+                        #:inputs #$(input-tuples->gexp inputs)))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:system system
-                                #:inputs inputs
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define rakudo-build-system
   (build-system
diff --git a/guix/build-system/renpy.scm b/guix/build-system/renpy.scm
index 35edc0056d..0ee73ec969 100644
--- a/guix/build-system/renpy.scm
+++ b/guix/build-system/renpy.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2021 Leo Prikler <leo.prikler@student.tugraz.at>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -21,7 +22,8 @@
   #:use-module (guix utils)
   #:use-module (guix memoization)
   #:use-module (guix packages)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -53,7 +55,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:renpy #:inputs #:native-inputs))
+    '(#:target #:renpy #:inputs #:native-inputs))
 
   (and (not target)                               ;XXX: no cross-compilation
        (bag
@@ -72,57 +74,43 @@
          (build renpy-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (renpy-build store name inputs
-                       #:key
-                       (phases '(@ (guix build renpy-build-system)
-                                   %standard-phases))
-                       (configure-flags ''())
-                       (outputs '("out"))
-                       (output "out")
-                       (game "game")
-                       (search-paths '())
-                       (system (%current-system))
-                       (guile #f)
-                       (imported-modules %renpy-build-system-modules)
-                       (modules '((guix build renpy-build-system)
-                                  (guix build utils))))
+(define* (renpy-build name inputs
+                      #:key
+                      source
+                      (phases '%standard-phases)
+                      (configure-flags ''())
+                      (outputs '("out"))
+                      (output "out")
+                      (game "game")
+                      (search-paths '())
+                      (system (%current-system))
+                      (guile #f)
+                      (imported-modules %renpy-build-system-modules)
+                      (modules '((guix build renpy-build-system)
+                                 (guix build utils))))
   "Build SOURCE using RENPY, and with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (renpy-build #:name ,name
-                    #:source ,(match (assoc-ref inputs "source")
-                                (((? derivation? source))
-                                 (derivation->output-path source))
-                                ((source)
-                                 source)
-                                (source
-                                 source))
-                     #:configure-flags ,configure-flags
-                     #:system ,system
-                     #:phases ,phases
-                     #:outputs %outputs
-                     #:output ,output
-                     #:game ,game
-                     #:search-paths ',(map search-path-specification->sexp
-                                           search-paths)
-                     #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (renpy-build #:name #$name
+                       #:source #+source
+                       #:configure-flags #$configure-flags
+                       #:system #$system
+                       #:phases #$phases
+                       #:outputs #$(outputs->gexp outputs)
+                       #:output #$output
+                       #:game #$game
+                       #:search-paths '#$(sexp->gexp
+                                          (map search-path-specification->sexp
+                                               search-paths))
+                       #:inputs #$(input-tuples->gexp inputs)))))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
 
 (define renpy-build-system
   (build-system
diff --git a/guix/build-system/ruby.scm b/guix/build-system/ruby.scm
index 8142e8551a..342daf7978 100644
--- a/guix/build-system/ruby.scm
+++ b/guix/build-system/ruby.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014 David Thompson <davet@gnu.org>
-;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2015, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,6 +20,8 @@
 (define-module (guix build-system ruby)
   #:use-module (guix store)
   #:use-module (guix utils)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix packages)
   #:use-module (guix derivations)
   #:use-module (guix search-paths)
@@ -54,7 +56,7 @@ NAME and VERSION."
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:ruby #:inputs #:native-inputs))
+    '(#:target #:ruby #:inputs #:native-inputs))
 
   (and (not target)                    ;XXX: no cross-compilation
        (bag
@@ -73,13 +75,12 @@ NAME and VERSION."
          (build ruby-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (ruby-build store name inputs
-                     #:key
+(define* (ruby-build name inputs
+                     #:key source
                      (gem-flags ''())
                      (test-target "test")
                      (tests? #t)
-                     (phases '(@ (guix build ruby-build-system)
-                                 %standard-phases))
+                     (phases '%standard-phases)
                      (outputs '("out"))
                      (search-paths '())
                      (system (%current-system))
@@ -88,42 +89,33 @@ NAME and VERSION."
                      (modules '((guix build ruby-build-system)
                                 (guix build utils))))
   "Build SOURCE using RUBY and INPUTS."
-  (define builder
-    `(begin
-       (use-modules ,@modules)
-       (ruby-build #:name ,name
-                   #:source ,(match (assoc-ref inputs "source")
-                               (((? derivation? source))
-                                (derivation->output-path source))
-                               ((source)
-                                source)
-                               (source
-                                source))
-                   #:system ,system
-                   #:gem-flags ,gem-flags
-                   #:test-target ,test-target
-                   #:tests? ,tests?
-                   #:phases ,phases
-                   #:outputs %outputs
-                   #:search-paths ',(map search-path-specification->sexp
-                                         search-paths)
-                   #:inputs %build-inputs)))
+  (define build
+    #~(begin
+        (use-modules #$@(sexp->gexp modules))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
+        #$(with-build-variables inputs outputs
+            #~(ruby-build #:name #$name
+                          #:source #+source
+                          #:system #$system
+                          #:gem-flags #$gem-flags
+                          #:test-target #$test-target
+                          #:tests? #$tests?
+                          #:phases #$(if (pair? phases)
+                                         (sexp->gexp phases)
+                                         phases)
+                          #:outputs %outputs
+                          #:search-paths '#$(sexp->gexp
+                                             (map search-path-specification->sexp
+                                                  search-paths))
+                          #:inputs %build-inputs))))
 
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name build
+                      #:system system
+                      #:target #f
+                      #:modules imported-modules
+                      #:guile-for-build guile)))
 
 (define ruby-build-system
   (build-system
diff --git a/guix/build-system/scons.scm b/guix/build-system/scons.scm
index aad455c419..74901b3478 100644
--- a/guix/build-system/scons.scm
+++ b/guix/build-system/scons.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Arun Isaac <arunisaac@systemreboot.net>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -19,7 +20,8 @@
 (define-module (guix build-system scons)
   #:use-module (guix utils)
   #:use-module (guix packages)
-  #:use-module (guix derivations)
+  #:use-module (guix monads)
+  #:use-module (guix gexp)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -53,7 +55,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:scons #:inputs #:native-inputs))
+    '(#:target #:scons #:inputs #:native-inputs))
 
   (and (not target)                               ;XXX: no cross-compilation
        (bag
@@ -72,15 +74,15 @@
          (build scons-build)
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (scons-build store name inputs
+(define* (scons-build name inputs
                       #:key
+                      (source #f)
                       (tests? #t)
                       (scons-flags ''())
-                      (build-targets ''())
+                      (build-targets #~'())
                       (test-target "test")
-                      (install-targets ''("install"))
-                      (phases '(@ (guix build scons-build-system)
-                                  %standard-phases))
+                      (install-targets #~'("install"))
+                      (phases '%standard-phases)
                       (outputs '("out"))
                       (search-paths '())
                       (system (%current-system))
@@ -91,43 +93,33 @@
   "Build SOURCE using SCons, and with INPUTS.  This assumes that SOURCE
 provides a 'SConstruct' file as its build system."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (scons-build #:name ,name
-                    #:source ,(match (assoc-ref inputs "source")
-                                (((? derivation? source))
-                                 (derivation->output-path source))
-                                ((source)
-                                 source)
-                                (source
-                                 source))
-                    #:scons-flags ,scons-flags
-                    #:system ,system
-                    #:build-targets ,build-targets
-                    #:test-target ,test-target
-                    #:tests? ,tests?
-                    #:install-targets ,install-targets
-                    #:phases ,phases
-                    #:outputs %outputs
-                    #:search-paths ',(map search-path-specification->sexp
-                                          search-paths)
-                    #:inputs %build-inputs)))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
+          #$(with-build-variables inputs outputs
+              #~(scons-build #:name #$name
+                             #:source #+source
+                             #:scons-flags #$(sexp->gexp scons-flags)
+                             #:system #$system
+                             #:build-targets #$build-targets
+                             #:test-target #$test-target
+                             #:tests? #$tests?
+                             #:install-targets #$install-targets
+                             #:phases #$(if (pair? phases)
+                                            (sexp->gexp phases)
+                                            phases)
+                             #:outputs %outputs
+                             #:inputs %build-inputs
+                             #:search-paths
+                             '#$(sexp->gexp
+                                 (map search-path-specification->sexp
+                                      search-paths)))))))
 
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (gexp->derivation name builder
+                    #:system system
+                    #:target #f
+                    #:guile-for-build guile))
 
 (define scons-build-system
   (build-system
diff --git a/guix/build-system/texlive.scm b/guix/build-system/texlive.scm
index 8bbca0ccb7..09907c67d8 100644
--- a/guix/build-system/texlive.scm
+++ b/guix/build-system/texlive.scm
@@ -1,5 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2021 Thiago Jung Bauermann <bauermann@kolabnow.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,7 +22,8 @@
   #:use-module (guix store)
   #:use-module (guix utils)
   #:use-module (guix packages)
-  #:use-module (guix derivations)
+  #:use-module (guix monads)
+  #:use-module (guix gexp)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -42,8 +45,8 @@
 
 ;; These variables specify the SVN tag and the matching SVN revision.  They
 ;; are taken from https://www.tug.org/svn/texlive/tags/
-(define %texlive-tag "texlive-2019.3")
-(define %texlive-revision 51265)
+(define %texlive-tag "texlive-2021.3")
+(define %texlive-revision 59745)
 
 (define (texlive-origin name version locations hash)
   "Return an <origin> object for a TeX Live package consisting of multiple
@@ -59,13 +62,17 @@ name for the checkout directory."
     (file-name (string-append name "-" version "-checkout"))
     (sha256 hash)))
 
-(define (texlive-ref component id)
+(define* (texlive-ref component #:optional id)
   "Return a <svn-reference> object for the package ID, which is part of the
-given Texlive COMPONENT."
+given Texlive COMPONENT.  If ID is not provided, COMPONENT is used as the top
+level package ID."
   (svn-reference
    (url (string-append "svn://www.tug.org/texlive/tags/"
                        %texlive-tag "/Master/texmf-dist/"
-                       "source/" component "/" id))
+                       "source/" component
+                       (if id
+                           (string-append "/" id)
+                           "")))
    (revision %texlive-revision)))
 
 (define %texlive-build-system-modules
@@ -96,7 +103,7 @@ given Texlive COMPONENT."
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:inputs #:native-inputs
+    '(#:target #:inputs #:native-inputs
       #:texlive-latex-base #:texlive-bin))
 
   (bag
@@ -110,18 +117,29 @@ given Texlive COMPONENT."
                    ;; Keep the standard inputs of 'gnu-build-system'.
                    ,@(standard-packages)))
     (build-inputs `(("texlive-bin" ,texlive-bin)
-                    ("texlive-latex-base" ,texlive-latex-base)
+                    ,@(if texlive-latex-base
+                          `(("texlive-latex-base" ,texlive-latex-base))
+                          '())
                     ,@native-inputs))
     (outputs outputs)
     (build texlive-build)
     (arguments (strip-keyword-arguments private-keywords arguments))))
 
-(define* (texlive-build store name inputs
+(define* (texlive-build name inputs
                         #:key
+                        source
                         (tests? #f)
                         tex-directory
                         (build-targets #f)
-                        (tex-format "luatex")
+                        (tex-engine #f)
+
+                        ;; FIXME: This would normally default to "luatex" but
+                        ;; LuaTeX has a bug where sometimes it corrupts the
+                        ;; heap and aborts. This causes the build of texlive
+                        ;; packages to fail at random. The problem is being
+                        ;; tracked at <https://issues.guix.gnu.org/48064>.
+                        (tex-format "pdftex")
+
                         (phases '(@ (guix build texlive-build-system)
                                     %standard-phases))
                         (outputs '("out"))
@@ -135,43 +153,34 @@ given Texlive COMPONENT."
                                    (guix build utils))))
   "Build SOURCE with INPUTS."
   (define builder
-    `(begin
-       (use-modules ,@modules)
-       (texlive-build #:name ,name
-                      #:source ,(match (assoc-ref inputs "source")
-                                       (((? derivation? source))
-                                        (derivation->output-path source))
-                                       ((source)
-                                        source)
-                                       (source
-                                        source))
-                      #:tex-directory ,tex-directory
-                      #:build-targets ,build-targets
-                      #:tex-format ,tex-format
-                      #:system ,system
-                      #:tests? ,tests?
-                      #:phases ,phases
-                      #:outputs %outputs
-                      #:search-paths ',(map search-path-specification->sexp
-                                            search-paths)
-                      #:inputs %build-inputs)))
-
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                               ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build
-                                #:substitutable? substitutable?))
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+
+          #$(with-build-variables inputs outputs
+              #~(texlive-build #:name #$name
+                               #:source #+source
+                               #:tex-directory #$tex-directory
+                               #:build-targets #$build-targets
+                               #:tex-engine #$(if tex-engine
+                                                  tex-engine
+                                                  tex-format)
+                               #:tex-format #$tex-format
+                               #:system #$system
+                               #:tests? #$tests?
+                               #:phases #$(if (pair? phases)
+                                              (sexp->gexp phases)
+                                              phases)
+                               #:outputs %outputs
+                               #:inputs %build-inputs
+                               #:search-paths '#$(sexp->gexp
+                                                  (map search-path-specification->sexp
+                                                       search-paths)))))))
+
+  (gexp->derivation name builder
+                    #:system system
+                    #:target #f
+                    #:substitutable? substitutable?))
 
 (define texlive-build-system
   (build-system
diff --git a/guix/build-system/trivial.scm b/guix/build-system/trivial.scm
index b50ef7cd92..cd35c846ce 100644
--- a/guix/build-system/trivial.scm
+++ b/guix/build-system/trivial.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2018, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -19,24 +19,16 @@
 (define-module (guix build-system trivial)
   #:use-module (guix store)
   #:use-module (guix utils)
-  #:use-module (guix derivations)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix packages)
   #:use-module (guix build-system)
   #:use-module (ice-9 match)
   #:export (trivial-build-system))
 
-(define (guile-for-build store guile system)
-  (match guile
-    ((? package?)
-     (package-derivation store guile system #:graft? #f))
-    (#f                                         ; the default
-     (let* ((distro (resolve-interface '(gnu packages commencement)))
-            (guile  (module-ref distro 'guile-final)))
-       (package-derivation store guile system #:graft? #f)))))
-
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
-                guile builder modules allowed-references)
+                guile builder (modules '()) allowed-references)
   "Return a bag for NAME."
   (bag
     (name name)
@@ -54,65 +46,48 @@
                  #:modules ,modules
                  #:allowed-references ,allowed-references))))
 
-(define* (trivial-build store name inputs
+(define* (trivial-build name inputs
                         #:key
-                        outputs guile system builder (modules '())
+                        outputs guile
+                        system builder (modules '())
                         search-paths allowed-references)
   "Run build expression BUILDER, an expression, for SYSTEM.  SOURCE is
 ignored."
-  (define canonicalize-reference
-    (match-lambda
-     ((? package? p)
-      (derivation->output-path (package-derivation store p system
-                                                   #:graft? #f)))
-     (((? package? p) output)
-      (derivation->output-path (package-derivation store p system
-                                                   #:graft? #f)
-                               output))
-     ((? string? output)
-      output)))
-
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:outputs outputs
-                                #:modules modules
-                                #:allowed-references
-                                (and allowed-references
-                                     (map canonicalize-reference
-                                          allowed-references))
-                                #:guile-for-build
-                                (guile-for-build store guile system)))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f))
+                      (builder -> (if (pair? builder)
+                                      (sexp->gexp builder)
+                                      builder)))
+    (gexp->derivation name (with-build-variables inputs outputs builder)
+                      #:system system
+                      #:target #f
+                      #:modules modules
+                      #:allowed-references allowed-references
+                      #:guile-for-build guile)))
 
-(define* (trivial-cross-build store name
+(define* (trivial-cross-build name
                               #:key
-                              target native-drvs target-drvs
+                              target
+                              source build-inputs target-inputs host-inputs
                               outputs guile system builder (modules '())
                               search-paths native-search-paths
                               allowed-references)
   "Run build expression BUILDER, an expression, for SYSTEM.  SOURCE is
 ignored."
-  (define canonicalize-reference
-    (match-lambda
-     ((? package? p)
-      (derivation->output-path (package-cross-derivation store p system)))
-     (((? package? p) output)
-      (derivation->output-path (package-cross-derivation store p system)
-                               output))
-     ((? string? output)
-      output)))
-
-  (build-expression->derivation store name builder
-                                #:inputs (append native-drvs target-drvs)
-                                #:system system
-                                #:outputs outputs
-                                #:modules modules
-                                #:allowed-references
-                                (and allowed-references
-                                     (map canonicalize-reference
-                                          allowed-references))
-                                #:guile-for-build
-                                (guile-for-build store guile system)))
+  (mlet %store-monad  ((guile (package->derivation (or guile (default-guile))
+                                                   system #:graft? #f))
+                       (builder -> (if (pair? builder)
+                                       (sexp->gexp builder)
+                                       builder)))
+    (gexp->derivation name (with-build-variables
+                               (append build-inputs target-inputs host-inputs)
+                               outputs
+                             builder)
+                      #:system system
+                      #:target target
+                      #:modules modules
+                      #:allowed-references allowed-references
+                      #:guile-for-build guile)))
 
 (define trivial-build-system
   (build-system
diff --git a/guix/build-system/waf.scm b/guix/build-system/waf.scm
index 044d2a0829..e8cd5520b8 100644
--- a/guix/build-system/waf.scm
+++ b/guix/build-system/waf.scm
@@ -19,6 +19,8 @@
 (define-module (guix build-system waf)
   #:use-module (guix store)
   #:use-module (guix utils)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix packages)
   #:use-module (guix derivations)
   #:use-module (guix search-paths)
@@ -52,7 +54,7 @@
                 #:rest arguments)
   "Return a bag for NAME."
   (define private-keywords
-    '(#:source #:target #:python #:inputs #:native-inputs))
+    '(#:target #:python #:inputs #:native-inputs))
 
   (and (not target)                               ;XXX: no cross-compilation
        (bag
@@ -71,58 +73,46 @@
          (build waf-build) ; only change compared to 'lower' in python.scm
          (arguments (strip-keyword-arguments private-keywords arguments)))))
 
-(define* (waf-build store name inputs
-                       #:key
-                       (tests? #t)
-                       (test-target "check")
-                       (configure-flags ''())
-                       (phases '(@ (guix build waf-build-system)
-                                   %standard-phases))
-                       (outputs '("out"))
-                       (search-paths '())
-                       (system (%current-system))
-                       (guile #f)
-                       (imported-modules %waf-build-system-modules)
-                       (modules '((guix build waf-build-system)
-                                  (guix build utils))))
+(define* (waf-build name inputs
+                    #:key source
+                    (tests? #t)
+                    (test-target "check")
+                    (configure-flags #~'())
+                    (phases '%standard-phases)
+                    (outputs '("out"))
+                    (search-paths '())
+                    (system (%current-system))
+                    (guile #f)
+                    (imported-modules %waf-build-system-modules)
+                    (modules '((guix build waf-build-system)
+                               (guix build utils))))
   "Build SOURCE with INPUTS.  This assumes that SOURCE provides a 'waf' file
 as its build system."
-  (define builder
-    `(begin
-       (use-modules ,@modules)
-       (waf-build #:name ,name
-                  #:source ,(match (assoc-ref inputs "source")
-                              (((? derivation? source))
-                               (derivation->output-path source))
-                              ((source)
-                               source)
-                              (source
-                               source))
-                  #:configure-flags ,configure-flags
-                  #:system ,system
-                  #:test-target ,test-target
-                  #:tests? ,tests?
-                  #:phases ,phases
-                  #:outputs %outputs
-                  #:search-paths ',(map search-path-specification->sexp
-                                        search-paths)
-                  #:inputs %build-inputs)))
+  (define build
+    #~(begin
+        (use-modules #$@(sexp->gexp modules))
 
-  (define guile-for-build
-    (match guile
-      ((? package?)
-       (package-derivation store guile system #:graft? #f))
-      (#f                                         ; the default
-       (let* ((distro (resolve-interface '(gnu packages commencement)))
-              (guile  (module-ref distro 'guile-final)))
-         (package-derivation store guile system #:graft? #f)))))
+        #$(with-build-variables inputs outputs
+            #~(waf-build #:name #$name
+                         #:source #+source
+                         #:configure-flags #$configure-flags
+                         #:system #$system
+                         #:test-target #$test-target
+                         #:tests? #$tests?
+                         #:phases #$phases
+                         #:outputs %outputs
+                         #:search-paths '#$(sexp->gexp
+                                            (map search-path-specification->sexp
+                                                 search-paths))
+                         #:inputs %build-inputs))))
 
-  (build-expression->derivation store name builder
-                                #:inputs inputs
-                                #:system system
-                                #:modules imported-modules
-                                #:outputs outputs
-                                #:guile-for-build guile-for-build))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name build
+                      #:system system
+                      #:target #f
+                      #:modules imported-modules
+                      #:guile-for-build guile)))
 
 (define waf-build-system
   (build-system
diff --git a/guix/build/copy-build-system.scm b/guix/build/copy-build-system.scm
index a86f0cde29..fb2d1db056 100644
--- a/guix/build/copy-build-system.scm
+++ b/guix/build/copy-build-system.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2020 Pierre Neidhardt <mail@ambrevar.xyz>
+;;; Copyright © 2021 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -58,7 +59,7 @@ In the above, FILTERS are optional.
       one of the elements in the list.
     - With `#:include-regexp`, install subpaths matching the regexps in the list.
     - The `#:exclude*` FILTERS work similarly.  Without `#:include*` flags,
-      install every subpath but the files matching the `#:exlude*` filters.
+      install every subpath but the files matching the `#:exclude*` filters.
       If both `#:include*` and `#:exclude*` are specified, the exclusion is done
       on the inclusion list.
 
@@ -133,8 +134,8 @@ given, then the predicate always returns DEFAULT-VALUE."
              file-list))))
 
   (define* (install source target #:key include exclude include-regexp exclude-regexp)
-    (set! target (string-append (assoc-ref outputs "out") "/" target))
-    (let ((filters? (or include exclude include-regexp exclude-regexp)))
+    (let ((final-target (string-append (assoc-ref outputs "out") "/" target))
+          (filters? (or include exclude include-regexp exclude-regexp)))
       (when (and (not (file-is-directory? source))
                  filters?)
         (error "Cannot use filters when SOURCE is a file."))
@@ -143,12 +144,12 @@ given, then the predicate always returns DEFAULT-VALUE."
                  (and (file-is-directory? source)
                       filters?))))
         (if multi-files-in-source?
-            (install-file-list source target
+            (install-file-list source final-target
                                #:include include
                                #:exclude exclude
                                #:include-regexp include-regexp
                                #:exclude-regexp exclude-regexp)
-            (install-simple source target)))))
+            (install-simple source final-target)))))
 
   (for-each (lambda (plan) (apply install plan)) install-plan)
   #t)
diff --git a/guix/build/emacs-build-system.scm b/guix/build/emacs-build-system.scm
index e41e9a6595..ba2c1b4aad 100644
--- a/guix/build/emacs-build-system.scm
+++ b/guix/build/emacs-build-system.scm
@@ -121,24 +121,10 @@ environment variable\n" source-directory))
   "Substitute the absolute \"/bin/\" directory with the right location in the
 store in '.el' files."
 
-  (define (file-contains-nul-char? file)
-    (call-with-input-file file
-      (lambda (in)
-        (let loop ((line (read-line in 'concat)))
-          (cond
-           ((eof-object? line) #f)
-           ((string-index line #\nul) #t)
-           (else (loop (read-line in 'concat))))))
-      #:binary #t))
-
   (let* ((out (assoc-ref outputs "out"))
          (elpa-name-ver (store-directory->elpa-name-version out))
          (el-dir (string-append out %install-dir "/" elpa-name-ver))
-         ;; (ice-9 regex) uses libc's regexp routines, which cannot deal with
-         ;; strings containing NULs.  Filter out such files.  TODO: Remove
-         ;; this workaround when <https://bugs.gnu.org/30116> is fixed.
-         (el-files (remove file-contains-nul-char?
-                           (find-files (getcwd) "\\.el$"))))
+         (el-files (find-files (getcwd) "\\.el$")))
     (define (substitute-program-names)
       (substitute* el-files
         (("\"/bin/([^.]\\S*)\"" _ cmd-name)
diff --git a/guix/build/glib-or-gtk-build-system.scm b/guix/build/glib-or-gtk-build-system.scm
index ba680fd1a9..8d3c3684d3 100644
--- a/guix/build/glib-or-gtk-build-system.scm
+++ b/guix/build/glib-or-gtk-build-system.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2014 Federico Beffa <beffa@fbengineering.ch>
 ;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Mark H Weaver <mhw@netris.org>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -136,14 +137,20 @@ Wrapping is not applied to outputs whose name is listed in
 GLIB-OR-GTK-WRAP-EXCLUDED-OUTPUTS.  This is useful when an output is known not
 to contain any GLib or GTK+ binaries, and where wrapping would gratuitously
 add a dependency of that output on GLib and GTK+."
+  ;; Do not require bash to be present in the package inputs
+  ;; even when there is nothing to wrap.
+  ;; Also, calculate (sh) only once to prevent some I/O.
+  (define %sh (delay (search-input-file inputs "bin/bash")))
+  (define (sh) (force %sh))
   (define handle-output
     (match-lambda
      ((output . directory)
       (unless (member output glib-or-gtk-wrap-excluded-outputs)
         (let* ((bindir       (string-append directory "/bin"))
                (libexecdir   (string-append directory "/libexec"))
-               (bin-list     (append (find-files bindir ".*")
-                                     (find-files libexecdir ".*")))
+               (bin-list     (filter (negate wrapped-program?)
+                                     (append (find-files bindir ".*")
+                                             (find-files libexecdir ".*"))))
                (datadirs     (data-directories
                               (alist-cons output directory inputs)))
                (gtk-mod-dirs (gtk-module-directories
@@ -164,36 +171,36 @@ add a dependency of that output on GLib and GTK+."
                     #f)))
           (cond
            ((and data-env-var gtk-mod-env-var gio-mod-env-var)
-            (for-each (cut wrap-program <>
+            (for-each (cut wrap-program <> #:sh (sh)
                            data-env-var
                            gtk-mod-env-var
                            gio-mod-env-var)
                       bin-list))
            ((and data-env-var gtk-mod-env-var (not gio-mod-env-var))
-            (for-each (cut wrap-program <>
+            (for-each (cut wrap-program <> #:sh (sh)
                            data-env-var
                            gtk-mod-env-var)
                       bin-list))
            ((and data-env-var (not gtk-mod-env-var) gio-mod-env-var)
-            (for-each (cut wrap-program <>
+            (for-each (cut wrap-program <> #:sh (sh)
                            data-env-var
                            gio-mod-env-var)
                       bin-list))
            ((and (not data-env-var) gtk-mod-env-var gio-mod-env-var)
-            (for-each (cut wrap-program <>
+            (for-each (cut wrap-program <> #:sh (sh)
                            gio-mod-env-var
                            gtk-mod-env-var)
                       bin-list))
            ((and data-env-var (not gtk-mod-env-var) (not gio-mod-env-var))
-            (for-each (cut wrap-program <>
+            (for-each (cut wrap-program <> #:sh (sh)
                            data-env-var)
                       bin-list))
            ((and (not data-env-var) gtk-mod-env-var (not gio-mod-env-var))
-            (for-each (cut wrap-program <>
+            (for-each (cut wrap-program <> #:sh (sh)
                            gtk-mod-env-var)
                       bin-list))
            ((and (not data-env-var) (not gtk-mod-env-var) gio-mod-env-var)
-            (for-each (cut wrap-program <>
+            (for-each (cut wrap-program <> #:sh (sh)
                            gio-mod-env-var)
                       bin-list))))))))
 
diff --git a/guix/build/gnu-build-system.scm b/guix/build/gnu-build-system.scm
index 2e7dff2034..d0f7413268 100644
--- a/guix/build/gnu-build-system.scm
+++ b/guix/build/gnu-build-system.scm
@@ -1,7 +1,8 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2020 Brendan Tildesley <mail@brendan.scot>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -35,6 +36,7 @@
   #:use-module (rnrs io ports)
   #:export (%standard-phases
             %license-file-regexp
+            %bootstrap-scripts
             dump-file-contents
             gnu-build))
 
@@ -57,23 +59,26 @@
   "Set the 'SOURCE_DATE_EPOCH' environment variable.  This is used by tools
 that incorporate timestamps as a way to tell them to use a fixed timestamp.
 See https://reproducible-builds.org/specs/source-date-epoch/."
-  (setenv "SOURCE_DATE_EPOCH" "1")
-  #t)
+  (setenv "SOURCE_DATE_EPOCH" "1"))
 
 (define (first-subdirectory directory)
-  "Return the file name of the first sub-directory of DIRECTORY."
+  "Return the file name of the first sub-directory of DIRECTORY or false, when
+there are none."
   (match (scandir directory
                   (lambda (file)
                     (and (not (member file '("." "..")))
                          (file-is-directory? (string-append directory "/"
                                                             file)))))
-    ((first . _) first)))
+    ((first . _) first)
+    (_ #f)))
 
 (define* (set-paths #:key target inputs native-inputs
                     (search-paths '()) (native-search-paths '())
                     #:allow-other-keys)
   (define input-directories
-    (match inputs
+    ;; The "source" input can be a directory, but we don't want it for search
+    ;; paths.  See <https://issues.guix.gnu.org/44924>.
+    (match (alist-delete "source" inputs)
       (((_ . dir) ...)
        dir)))
 
@@ -113,9 +118,7 @@ See https://reproducible-builds.org/specs/source-date-epoch/."
                                                #:separator separator
                                                #:type type
                                                #:pattern pattern)))
-              native-search-paths))
-
-  #t)
+              native-search-paths)))
 
 (define* (install-locale #:key
                          (locale "en_US.utf8")
@@ -134,15 +137,13 @@ chance to be set."
       (setenv (locale-category->string locale-category) locale)
 
       (format (current-error-port) "using '~a' locale for category ~s~%"
-              locale (locale-category->string locale-category))
-      #t)
+              locale (locale-category->string locale-category)))
     (lambda args
       ;; This is known to fail for instance in early bootstrap where locales
       ;; are not available.
       (format (current-error-port)
               "warning: failed to install '~a' locale: ~a~%"
-              locale (strerror (system-error-errno args)))
-      #t)))
+              locale (strerror (system-error-errno args))))))
 
 (define* (unpack #:key source #:allow-other-keys)
   "Unpack SOURCE in the working directory, and change directory within the
@@ -156,13 +157,25 @@ working directory."
         ;; Preserve timestamps (set to the Epoch) on the copied tree so that
         ;; things work deterministically.
         (copy-recursively source "."
-                          #:keep-mtime? #t))
+                          #:keep-mtime? #t)
+        ;; Make the source checkout files writable, for convenience.
+        (for-each (lambda (f)
+                    (false-if-exception (make-file-writable f)))
+                  (find-files ".")))
       (begin
-        (if (string-suffix? ".zip" source)
-            (invoke "unzip" source)
-            (invoke "tar" "xvf" source))
-        (chdir (first-subdirectory "."))))
-  #t)
+        (cond
+         ((string-suffix? ".zip" source)
+          (invoke "unzip" source))
+         ((tarball? source)
+          (invoke "tar" "xvf" source))
+         (else
+          (let ((name (strip-store-file-name source))
+                (command (compressor source)))
+            (copy-file source name)
+            (when command
+              (invoke command "--decompress" name)))))
+        ;; Attempt to change into child directory.
+        (and=> (first-subdirectory ".") chdir))))
 
 (define %bootstrap-scripts
   ;; Typical names of Autotools "bootstrap" scripts.
@@ -205,8 +218,7 @@ working directory."
                 (invoke "autoreconf" "-vif")
                 (format #t "no 'configure.ac' or anything like that, \
 doing nothing~%"))))
-      (format #t "GNU build system bootstrapping not needed~%"))
-  #t)
+      (format #t "GNU build system bootstrapping not needed~%")))
 
 ;; See <http://bugs.gnu.org/17840>.
 (define* (patch-usr-bin-file #:key native-inputs inputs
@@ -220,8 +232,7 @@ things like the ABI being used."
     (for-each (lambda (file)
                 (when (executable-file? file)
                   (patch-/usr/bin/file file)))
-              (find-files "." "^configure$")))
-  #t)
+              (find-files "." "^configure$"))))
 
 (define* (patch-source-shebangs #:key source #:allow-other-keys)
   "Patch shebangs in all source files; this includes non-executable
@@ -233,8 +244,7 @@ $CONFIG_SHELL, but some don't, such as `mkinstalldirs' or Automake's
                         (lambda (file stat)
                           ;; Filter out symlinks.
                           (eq? 'regular (stat:type stat)))
-                        #:stat lstat))
-  #t)
+                        #:stat lstat)))
 
 (define (patch-generated-file-shebangs . rest)
   "Patch shebangs in generated files, including `SHELL' variables in
@@ -249,9 +259,7 @@ makefiles."
                         #:stat lstat))
 
   ;; Patch `SHELL' in generated makefiles.
-  (for-each patch-makefile-SHELL (find-files "." "^(GNU)?[mM]akefile$"))
-
-  #t)
+  (for-each patch-makefile-SHELL (find-files "." "^(GNU)?[mM]akefile$")))
 
 (define* (configure #:key build target native-inputs inputs outputs
                     (configure-flags '()) out-of-source?
@@ -381,8 +389,7 @@ makefiles."
                        `("-j" ,(number->string (parallel-job-count)))
                        '())
                  ,@make-flags)))
-      (format #t "test suite not run~%"))
-  #t)
+      (format #t "test suite not run~%")))
 
 (define* (install #:key (make-flags '()) #:allow-other-keys)
   (apply invoke "make" "install" make-flags))
@@ -400,7 +407,8 @@ makefiles."
     (match-lambda
      ((_ . dir)
       (list (string-append dir "/bin")
-            (string-append dir "/sbin")))))
+            (string-append dir "/sbin")
+            (string-append dir "/libexec")))))
 
   (define output-bindirs
     (append-map bin-directories outputs))
@@ -415,8 +423,7 @@ makefiles."
       (for-each (lambda (dir)
                   (let ((files (list-of-files dir)))
                     (for-each (cut patch-shebang <> path) files)))
-                output-bindirs)))
-  #t)
+                output-bindirs))))
 
 (define* (strip #:key target outputs (strip-binaries? #t)
                 (strip-command (if target
@@ -425,7 +432,7 @@ makefiles."
                 (objcopy-command (if target
                                      (string-append target "-objcopy")
                                      "objcopy"))
-                (strip-flags '("--strip-debug"
+                (strip-flags '("--strip-unneeded"
                                "--enable-deterministic-archives"))
                 (strip-directories '("lib" "lib64" "libexec"
                                      "bin" "sbin"))
@@ -514,8 +521,7 @@ makefiles."
                                   (let ((sub (string-append dir "/" d)))
                                     (and (directory-exists? sub) sub)))
                                 strip-directories)))
-                 outputs)))
-  #t)
+                 outputs))))
 
 (define* (validate-runpath #:key
                            (validate-runpath? #t)
@@ -560,9 +566,7 @@ phase after stripping."
                               outputs)))
         (unless (every* validate dirs)
           (error "RUNPATH validation failed")))
-      (format (current-error-port) "skipping RUNPATH validation~%"))
-
-  #t)
+      (format (current-error-port) "skipping RUNPATH validation~%")))
 
 (define* (validate-documentation-location #:key outputs
                                           #:allow-other-keys)
@@ -582,8 +586,7 @@ and 'man/'.  This phase moves directories to the right place if needed."
 
   (match outputs
     (((names . directories) ...)
-     (for-each validate-output directories)))
-  #t)
+     (for-each validate-output directories))))
 
 (define* (reset-gzip-timestamps #:key outputs #:allow-other-keys)
   "Reset embedded timestamps in gzip files found in OUTPUTS."
@@ -599,8 +602,7 @@ and 'man/'.  This phase moves directories to the right place if needed."
 
   (match outputs
     (((names . directories) ...)
-     (for-each process-directory directories)))
-  #t)
+     (for-each process-directory directories))))
 
 (define* (compress-documentation #:key outputs
                                  (compress-documentation? #t)
@@ -616,7 +618,7 @@ DOCUMENTATION-COMPRESSOR-FLAGS."
     (let ((target (readlink link)))
       (delete-file link)
       (symlink (string-append target compressed-documentation-extension)
-               link)))
+               (string-append link compressed-documentation-extension))))
 
   (define (has-links? file)
     ;; Return #t if FILE has hard links.
@@ -679,8 +681,7 @@ DOCUMENTATION-COMPRESSOR-FLAGS."
       (match outputs
         (((names . directories) ...)
          (for-each maybe-compress directories)))
-      (format #t "not compressing documentation~%"))
-  #t)
+      (format #t "not compressing documentation~%")))
 
 (define* (delete-info-dir-file #:key outputs #:allow-other-keys)
   "Delete any 'share/info/dir' file from OUTPUTS."
@@ -689,8 +690,7 @@ DOCUMENTATION-COMPRESSOR-FLAGS."
            (let ((info-dir-file (string-append directory "/share/info/dir")))
              (when (file-exists? info-dir-file)
                (delete-file info-dir-file)))))
-            outputs)
-  #t)
+            outputs))
 
 
 (define* (patch-dot-desktop-files #:key outputs inputs #:allow-other-keys)
@@ -730,8 +730,74 @@ which cannot be found~%"
                          (("^TryExec=([^/[:blank:]\r\n]*)(.*)$" _ binary rest)
                           (string-append "TryExec="
                                          (which binary) rest)))))))))
-            outputs)
-  #t)
+            outputs))
+
+(define* (make-dynamic-linker-cache #:key outputs
+                                    (make-dynamic-linker-cache? #t)
+                                    #:allow-other-keys)
+  "Create a dynamic linker cache under 'etc/ld.so.cache' in each of the
+OUTPUTS.  This reduces application startup time by avoiding the 'stat' storm
+that traversing all the RUNPATH entries entails."
+  (define (make-cache-for-output directory)
+    (define bin-directories
+      (filter-map (lambda (sub-directory)
+                    (let ((directory (string-append directory "/"
+                                                    sub-directory)))
+                      (and (directory-exists? directory)
+                           directory)))
+                  '("bin" "sbin" "libexec")))
+
+    (define programs
+      ;; Programs that can benefit from the ld.so cache.
+      (append-map (lambda (directory)
+                    (if (directory-exists? directory)
+                        (find-files directory
+                                    (lambda (file stat)
+                                      (and (executable-file? file)
+                                           (elf-file? file))))
+                        '()))
+                  bin-directories))
+
+    (define library-path
+      ;; Directories containing libraries that PROGRAMS depend on,
+      ;; recursively.
+      (delete-duplicates
+       (append-map (lambda (program)
+                     (map dirname (file-needed/recursive program)))
+                   programs)))
+
+    (define cache-file
+      (string-append directory "/etc/ld.so.cache"))
+
+    (define ld.so.conf
+      (string-append (or (getenv "TMPDIR") "/tmp")
+                     "/ld.so.conf"))
+
+    (unless (null? library-path)
+      (mkdir-p (dirname cache-file))
+      (guard (c ((invoke-error? c)
+                 ;; Do not treat 'ldconfig' failure as an error.
+                 (format (current-error-port)
+                         "warning: 'ldconfig' failed:~%")
+                 (report-invoke-error c (current-error-port))))
+        ;; Create a config file to tell 'ldconfig' where to look for the
+        ;; libraries that PROGRAMS need.
+        (call-with-output-file ld.so.conf
+          (lambda (port)
+            (for-each (lambda (directory)
+                        (display directory port)
+                        (newline port))
+                      library-path)))
+
+        (invoke "ldconfig" "-f" ld.so.conf "-C" cache-file)
+        (format #t "created '~a' from ~a library search path entries~%"
+                cache-file (length library-path)))))
+
+  (if make-dynamic-linker-cache?
+      (match outputs
+        (((_ . directories) ...)
+         (for-each make-cache-for-output directories)))
+      (format #t "ld.so cache not built~%")))
 
 (define %license-file-regexp
   ;; Regexp matching license files.
@@ -796,8 +862,7 @@ which cannot be found~%"
                                                         package))
                     (map (cut string-append source "/" <>) files)))
         (format (current-error-port)
-                "failed to find license files~%"))
-    #t))
+                "failed to find license files~%"))))
 
 (define %standard-phases
   ;; Standard build phases, as a list of symbol/procedure pairs.
@@ -813,6 +878,7 @@ which cannot be found~%"
             validate-documentation-location
             delete-info-dir-file
             patch-dot-desktop-files
+            make-dynamic-linker-cache
             install-license-files
             reset-gzip-timestamps
             compress-documentation)))
@@ -840,26 +906,30 @@ in order.  Return #t if all the PHASES succeeded, #f otherwise."
              (exit 1)))
     ;; The trick is to #:allow-other-keys everywhere, so that each procedure in
     ;; PHASES can pick the keyword arguments it's interested in.
-    (every (match-lambda
-             ((name . proc)
-              (let ((start (current-time time-monotonic)))
-                (format #t "starting phase `~a'~%" name)
-                (let ((result (apply proc args))
-                      (end    (current-time time-monotonic)))
-                  (format #t "phase `~a' ~:[failed~;succeeded~] after ~,1f seconds~%"
-                          name result
-                          (elapsed-time end start))
-
-                  ;; Issue a warning unless the result is #t.
-                  (unless (eqv? result #t)
-                    (format (current-error-port) "\
-## WARNING: phase `~a' returned `~s'.  Return values other than #t
-## are deprecated.  Please migrate this package so that its phase
-## procedures report errors by raising an exception, and otherwise
-## always return #t.~%"
-                            name result))
-
-                  ;; Dump the environment variables as a shell script, for handy debugging.
-                  (system "export > $NIX_BUILD_TOP/environment-variables")
-                  result))))
-           phases)))
+    (for-each (match-lambda
+                ((name . proc)
+                 (let ((start (current-time time-monotonic)))
+                   (define (end-of-phase success?)
+                     (let ((end (current-time time-monotonic)))
+                       (format #t "phase `~a' ~:[failed~;succeeded~] after ~,1f seconds~%"
+                               name success?
+                               (elapsed-time end start))
+
+                       ;; Dump the environment variables as a shell script,
+                       ;; for handy debugging.
+                       (system "export > $NIX_BUILD_TOP/environment-variables")))
+
+                   (format #t "starting phase `~a'~%" name)
+                   (with-throw-handler #t
+                     (lambda ()
+                       (apply proc args)
+                       (end-of-phase #t))
+                     (lambda args
+                       ;; This handler executes before the stack is unwound.
+                       ;; The exception is automatically re-thrown from here,
+                       ;; and we should get a proper backtrace.
+                       (format (current-error-port)
+                               "error: in phase '~a': uncaught exception:
+~{~s ~}~%" name args)
+                       (end-of-phase #f))))))
+              phases)))
diff --git a/guix/build/gremlin.scm b/guix/build/gremlin.scm
index e8ea66dfb3..2a74d51dd9 100644
--- a/guix/build/gremlin.scm
+++ b/guix/build/gremlin.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2018, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -41,6 +41,17 @@
             elf-dynamic-info-runpath
             expand-origin
 
+            file-dynamic-info
+            file-runpath
+            file-needed
+            file-needed/recursive
+
+            missing-runpath-error?
+            missing-runpath-error-file
+            runpath-too-long-error?
+            runpath-too-long-error-file
+            set-file-runpath
+
             validate-needed-in-runpath
             strip-runpath))
 
@@ -215,7 +226,9 @@ string table if the type is a string."
     (#f #f)
     ((? elf-segment? dynamic)
      (let ((entries (dynamic-entries elf dynamic)))
-       (%elf-dynamic-info (find (matching-entry DT_SONAME) entries)
+       (%elf-dynamic-info (and=> (find (matching-entry DT_SONAME)
+                                       entries)
+                                 dynamic-entry-value)
                           (filter-map (lambda (entry)
                                         (and (= (dynamic-entry-type entry)
                                                 DT_NEEDED)
@@ -232,6 +245,63 @@ string table if the type is a string."
                                               dynamic-entry-value))
                               '()))))))
 
+(define (file-dynamic-info file)
+  "Return the <elf-dynamic-info> record of FILE, or #f if FILE lacks dynamic
+info."
+  (call-with-input-file file
+    (lambda (port)
+      (elf-dynamic-info (parse-elf (get-bytevector-all port))))))
+
+(define (file-runpath file)
+  "Return the DT_RUNPATH dynamic entry of FILE as a list of strings, or #f if
+FILE lacks dynamic info."
+  (and=> (file-dynamic-info file) elf-dynamic-info-runpath))
+
+(define (file-needed file)
+  "Return the list of DT_NEEDED dynamic entries of FILE, or #f if FILE lacks
+dynamic info."
+  (and=> (file-dynamic-info file) elf-dynamic-info-needed))
+
+(define (file-needed/recursive file)
+  "Return two values: the list of absolute .so file names FILE depends on,
+recursively, and the list of .so file names that could not be found.  File
+names are resolved by searching the RUNPATH of the file that NEEDs them.
+
+This is similar to the info returned by the 'ldd' command."
+  (let loop ((files  (list file))
+             (result '())
+             (not-found '()))
+    (match files
+      (()
+       (values (reverse result)
+               (reverse (delete-duplicates not-found))))
+      ((file . rest)
+       (match (file-dynamic-info file)
+         (#f
+          (loop rest result not-found))
+         (info
+          (let ((runpath (elf-dynamic-info-runpath info))
+                (needed  (elf-dynamic-info-needed info)))
+            (if (and runpath needed)
+                (let* ((runpath  (map (cute expand-origin <> (dirname file))
+                                      runpath))
+                       (resolved (map (cut search-path runpath <>)
+                                      needed))
+                       (failed   (filter-map (lambda (needed resolved)
+                                               (and (not resolved)
+                                                    (not (libc-library? needed))
+                                                    needed))
+                                             needed resolved))
+                       (needed   (remove (lambda (value)
+                                           (or (not value)
+                                               ;; XXX: quadratic
+                                               (member value result)))
+                                         resolved)))
+                  (loop (append rest needed)
+                        (append needed result)
+                        (append failed not-found)))
+                (loop rest result not-found)))))))))
+
 (define %libc-libraries
   ;; List of libraries as of glibc 2.21 (there are more but those are
   ;; typically mean to be LD_PRELOADed and thus do not appear as NEEDED.)
@@ -364,4 +434,49 @@ according to DT_NEEDED."
       (false-if-exception (close-port port))
       (apply throw key args))))
 
-;;; gremlin.scm ends here
+
+(define-condition-type &missing-runpath-error &elf-error
+  missing-runpath-error?
+  (file      missing-runpath-error-file))
+
+(define-condition-type &runpath-too-long-error &elf-error
+  runpath-too-long-error?
+  (file      runpath-too-long-error-file))
+
+(define (set-file-runpath file path)
+  "Set the value of the DT_RUNPATH dynamic entry of FILE, which must name an
+ELF file, to PATH, a list of strings.  Raise a &missing-runpath-error or
+&runpath-too-long-error when appropriate."
+  (define (call-with-input+output-file file proc)
+    (let ((port (open-file file "r+b")))
+      (guard (c (#t (close-port port) (raise c)))
+        (proc port)
+        (close-port port))))
+
+  (call-with-input+output-file file
+    (lambda (port)
+      (let* ((elf     (parse-elf (get-bytevector-all port)))
+             (entries (dynamic-entries elf (dynamic-link-segment elf)))
+             (runpath (find (lambda (entry)
+                              (= DT_RUNPATH (dynamic-entry-type entry)))
+                            entries))
+             (path    (string->utf8 (string-join path ":"))))
+        (unless runpath
+          (raise (condition (&missing-runpath-error (elf elf)
+                                                    (file file)))))
+
+        ;; There might be padding left beyond RUNPATH in the string table, but
+        ;; we don't know, so assume there's no padding.
+        (unless (<= (bytevector-length path)
+                    (bytevector-length
+                     (string->utf8 (dynamic-entry-value runpath))))
+          (raise (condition (&runpath-too-long-error (elf #f #;elf)
+                                                     (file file)))))
+
+        (seek port (dynamic-entry-offset runpath) SEEK_SET)
+        (put-bytevector port path)
+        (put-u8 port 0)))))
+
+;;; Local Variables:
+;;; eval: (put 'call-with-input+output-file 'scheme-indent-function 1)
+;;; End:
diff --git a/guix/build/lisp-utils.scm b/guix/build/lisp-utils.scm
index 8a02cb68dd..17d2637f87 100644
--- a/guix/build/lisp-utils.scm
+++ b/guix/build/lisp-utils.scm
@@ -281,7 +281,7 @@ DEPENDENCY-PREFIXES to ensure references to those libraries are retained."
                               type
                               compress?
                               #:allow-other-keys)
-  "Generate an executable by using asdf operation TYPE, containing whithin the
+  "Generate an executable by using asdf operation TYPE, containing within the
 image all DEPENDENCIES, and running ENTRY-PROGRAM in the case of an
 executable.  Link in any asd files from DEPENDENCY-PREFIXES to ensure
 references to those libraries are retained."
diff --git a/guix/build/maven/pom.scm b/guix/build/maven/pom.scm
index 9e35e47a7f..193a76b7cb 100644
--- a/guix/build/maven/pom.scm
+++ b/guix/build/maven/pom.scm
@@ -293,7 +293,7 @@ this repository contains."
                                #:key with-plugins? with-build-dependencies?
                                      with-modules? (excludes '())
                                      (local-packages '()))
-  "Open @var{pom-file}, and override its content, rewritting its dependencies
+  "Open @var{pom-file}, and override its content, rewriting its dependencies
 to set their version to the latest version available in the @var{inputs}.
 
 @var{#:with-plugins?} controls whether plugins are also overridden.
diff --git a/guix/build/meson-build-system.scm b/guix/build/meson-build-system.scm
index 8043a84abb..cc2ba83889 100644
--- a/guix/build/meson-build-system.scm
+++ b/guix/build/meson-build-system.scm
@@ -100,7 +100,7 @@ for example libraries only needed for the tests."
                                             (find-files dir elf-pred))
                                           existing-elf-dirs))))
          (for-each strip-runpath elf-list)))))
-  (for-each handle-output outputs)
+  (for-each handle-output (alist-delete "debug" outputs))
   #t)
 
 (define %standard-phases
diff --git a/guix/build/meson-configuration.scm b/guix/build/meson-configuration.scm
new file mode 100644
index 0000000000..1aac5f8f0a
--- /dev/null
+++ b/guix/build/meson-configuration.scm
@@ -0,0 +1,56 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix build meson-configuration)
+  #:use-module (ice-9 match)
+  #:export (write-section-header write-assignment write-assignments))
+
+;; Commentary:
+;;
+;; Utilities for generating a ‘Cross build definition file’ for
+;; the Meson build system.  Configuration values are currently
+;; never escaped.  In practice this is unlikely to be a problem
+;; in the build environment.
+;;
+;; Code:
+
+(define (write-section-header port section-name)
+  "Write a section header for a section named SECTION-NAME to PORT."
+  (format port "[~a]~%" section-name))
+
+(define (write-assignment port key value)
+  "Write an assignment of VALUE to KEY to PORT.
+
+VALUE must be a string (without any special characters such as quotes),
+a boolean or an integer.  Lists are currently not supported"
+  (match value
+    ((? string?)
+     (format port "~a = '~a'~%" key value))
+    ((? integer?)
+     (format port "~a = ~a~%" key value))
+    (#f
+     (format port "~a = true~%" key))
+    (#t
+     (format port "~a = false~%" key))))
+
+(define* (write-assignments port alist)
+  "Write the assignments in ALIST, an association list, to PORT."
+  (for-each (match-lambda
+              ((key . value)
+               (write-assignment port key value)))
+            alist))
diff --git a/guix/build/minify-build-system.scm b/guix/build/minify-build-system.scm
index c5a876726f..5789ca3f0f 100644
--- a/guix/build/minify-build-system.scm
+++ b/guix/build/minify-build-system.scm
@@ -23,6 +23,7 @@
   #:use-module (guix build utils)
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-26)
+  #:use-module (ice-9 match)
   #:use-module (ice-9 popen)
   #:export (%standard-phases
             minify-build
@@ -42,14 +43,17 @@
          (minified (open-pipe* OPEN_READ "uglifyjs" file)))
     (call-with-output-file installed
       (cut dump-port minified <>))
-    #t))
+    (match (close-pipe minified)
+      (0 #t)
+      (status
+       (error "uglify-js failed" status)))))
 
 (define* (build #:key javascript-files
                 #:allow-other-keys)
   (let ((files (or javascript-files
                    (find-files "src" "\\.js$"))))
     (mkdir-p "guix/build")
-    (every (cut minify <> #:directory "guix/build/") files)))
+    (for-each (cut minify <> #:directory "guix/build/") files)))
 
 (define* (install #:key outputs #:allow-other-keys)
   (let* ((out (assoc-ref outputs "out"))
@@ -60,8 +64,7 @@
         (if (not (zero? (stat:size (stat file))))
           (install-file file js)
           (error "File is empty: " file)))
-      (find-files "guix/build" "\\.min\\.js$")))
-  #t)
+      (find-files "guix/build" "\\.min\\.js$"))))
 
 (define %standard-phases
   (modify-phases gnu:%standard-phases
diff --git a/guix/build/python-build-system.scm b/guix/build/python-build-system.scm
index 09bd8465c8..08871f60cd 100644
--- a/guix/build/python-build-system.scm
+++ b/guix/build/python-build-system.scm
@@ -6,6 +6,11 @@
 ;;; Copyright © 2016 Hartmut Goebel <h.goebel@crazy-compilers.com>
 ;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
+;;; Copyright © 2019, 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
+;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2021 Lars-Dominik Braun <lars@6xq.net>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -27,6 +32,7 @@
   #:use-module (guix build utils)
   #:use-module (ice-9 match)
   #:use-module (ice-9 ftw)
+  #:use-module (ice-9 format)
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-26)
   #:export (%standard-phases
@@ -128,6 +134,15 @@
              (apply invoke "python" "./setup.py" command params)))
       (error "no setup.py found")))
 
+(define* (sanity-check #:key tests? inputs outputs #:allow-other-keys)
+  "Ensure packages depending on this package via setuptools work properly,
+their advertised endpoints work and their top level modules are importable
+without errors."
+  (let ((sanity-check.py (assoc-ref inputs "sanity-check.py")))
+    ;; Make sure the working directory is empty (i.e. no Python modules in it)
+    (with-directory-excursion "/tmp"
+      (invoke "python" sanity-check.py (site-packages inputs outputs)))))
+
 (define* (build #:key use-setuptools? #:allow-other-keys)
   "Build a given Python package."
   (call-setuppy "build" '() use-setuptools?)
@@ -154,65 +169,86 @@
          (major+minor (take components 2)))
     (string-join major+minor ".")))
 
+(define (python-output outputs)
+  "Return the path of the python output, if there is one, or fall-back to out."
+  (or (assoc-ref outputs "python")
+      (assoc-ref outputs "out")))
+
 (define (site-packages inputs outputs)
   "Return the path of the current output's Python site-package."
-  (let* ((out (assoc-ref outputs "out"))
+  (let* ((out (python-output outputs))
          (python (assoc-ref inputs "python")))
-    (string-append out "/lib/python"
-                   (python-version python)
-                   "/site-packages/")))
+    (string-append out "/lib/python" (python-version python) "/site-packages")))
 
 (define (add-installed-pythonpath inputs outputs)
-  "Prepend the Python site-package of OUTPUT to PYTHONPATH.  This is useful
-when running checks after installing the package."
-  (let ((old-path (getenv "PYTHONPATH"))
-        (add-path (site-packages inputs outputs)))
-    (setenv "PYTHONPATH"
-            (string-append add-path
-                           (if old-path (string-append ":" old-path) "")))
-    #t))
+  "Prepend the site-package of OUTPUT to GUIX_PYTHONPATH.  This is useful when
+running checks after installing the package."
+  (setenv "GUIX_PYTHONPATH" (string-append (site-packages inputs outputs) ":"
+                                           (getenv "GUIX_PYTHONPATH"))))
+
+(define* (add-install-to-pythonpath #:key inputs outputs #:allow-other-keys)
+  "A phase that just wraps the 'add-installed-pythonpath' procedure."
+  (add-installed-pythonpath inputs outputs))
 
-(define* (install #:key outputs (configure-flags '()) use-setuptools?
+(define* (add-install-to-path #:key outputs #:allow-other-keys)
+  "Adding Python scripts to PATH is also often useful in tests."
+  (setenv "PATH" (string-append (assoc-ref outputs "out")
+                                "/bin:"
+                                (getenv "PATH"))))
+
+(define* (install #:key inputs outputs (configure-flags '()) use-setuptools?
                   #:allow-other-keys)
   "Install a given Python package."
-  (let* ((out (assoc-ref outputs "out"))
-         (params (append (list (string-append "--prefix=" out))
+  (let* ((out (python-output outputs))
+         (python (assoc-ref inputs "python"))
+         (major-minor (map string->number
+                           (take (string-split (python-version python) #\.) 2)))
+         (<3.7? (match major-minor
+                   ((major minor)
+                    (or (< major 3) (and (= major 3) (< minor 7))))))
+         (params (append (list (string-append "--prefix=" out)
+                               "--no-compile")
                          (if use-setuptools?
                              ;; distutils does not accept these flags
                              (list "--single-version-externally-managed"
-                                    "--root=/")
+                                   "--root=/")
                              '())
                          configure-flags)))
     (call-setuppy "install" params use-setuptools?)
-    #t))
+    ;; Rather than produce potentially non-reproducible .pyc files on Pythons
+    ;; older than 3.7, whose 'compileall' module lacks the
+    ;; '--invalidation-mode' option, do not generate any.
+    (unless <3.7?
+      (invoke "python" "-m" "compileall" "--invalidation-mode=unchecked-hash"
+              out))))
 
 (define* (wrap #:key inputs outputs #:allow-other-keys)
   (define (list-of-files dir)
     (find-files dir (lambda (file stat)
                       (and (eq? 'regular (stat:type stat))
-                           (not (wrapper? file))))))
+                           (not (wrapped-program? file))))))
 
   (define bindirs
     (append-map (match-lambda
-                 ((_ . dir)
-                  (list (string-append dir "/bin")
-                        (string-append dir "/sbin"))))
+                  ((_ . dir)
+                   (list (string-append dir "/bin")
+                         (string-append dir "/sbin"))))
                 outputs))
 
-  (let* ((out  (assoc-ref outputs "out"))
-         (python (assoc-ref inputs "python"))
-         (var `("PYTHONPATH" prefix
-                ,(cons (string-append out "/lib/python"
-                                      (python-version python)
-                                      "/site-packages")
-                       (search-path-as-string->list
-                        (or (getenv "PYTHONPATH") ""))))))
+  ;; Do not require "bash" to be present in the package inputs
+  ;; even when there is nothing to wrap.
+  ;; Also, calculate (sh) only once to prevent some I/O.
+  (define %sh (delay (search-input-file inputs "bin/bash")))
+  (define (sh) (force %sh))
+
+  (let* ((var `("GUIX_PYTHONPATH" prefix
+                ,(search-path-as-string->list
+                  (or (getenv "GUIX_PYTHONPATH") "")))))
     (for-each (lambda (dir)
                 (let ((files (list-of-files dir)))
-                  (for-each (cut wrap-program <> var)
+                  (for-each (cut wrap-program <> #:sh (sh) var)
                             files)))
-              bindirs)
-    #t))
+              bindirs)))
 
 (define* (rename-pth-file #:key name inputs outputs #:allow-other-keys)
   "Rename easy-install.pth to NAME.pth to avoid conflicts between packages
@@ -220,16 +256,11 @@ installed with setuptools."
   ;; Even if the "easy-install.pth" is not longer created, we kept this phase.
   ;; There still may be packages creating an "easy-install.pth" manually for
   ;; some good reason.
-  (let* ((out (assoc-ref outputs "out"))
-         (python (assoc-ref inputs "python"))
-         (site-packages (string-append out "/lib/python"
-                                       (python-version python)
-                                       "/site-packages"))
+  (let* ((site-packages (site-packages inputs outputs))
          (easy-install-pth (string-append site-packages "/easy-install.pth"))
          (new-pth (string-append site-packages "/" name ".pth")))
     (when (file-exists? easy-install-pth)
-      (rename-file easy-install-pth new-pth))
-    #t))
+      (rename-file easy-install-pth new-pth))))
 
 (define* (ensure-no-mtimes-pre-1980 #:rest _)
   "Ensure that there are no mtimes before 1980-01-02 in the source tree."
@@ -241,32 +272,49 @@ installed with setuptools."
     (ftw "." (lambda (file stat flag)
                (unless (<= early-1980 (stat:mtime stat))
                  (utime file early-1980 early-1980))
-               #t))
-    #t))
+               #t))))
 
 (define* (enable-bytecode-determinism #:rest _)
   "Improve determinism of pyc files."
   ;; Use deterministic hashes for strings, bytes, and datetime objects.
   (setenv "PYTHONHASHSEED" "0")
-  #t)
+  ;; Prevent Python from creating .pyc files when loading modules (such as
+  ;; when running a test suite).
+  (setenv "PYTHONDONTWRITEBYTECODE" "1"))
+
+(define* (ensure-no-cythonized-files #:rest _)
+  "Check the source code for @code{.c} files which may have been pre-generated
+by Cython."
+  (for-each
+    (lambda (file)
+      (let ((generated-file
+              (string-append (string-drop-right file 3) "c")))
+        (when (file-exists? generated-file)
+          (format #t "Possible Cythonized file found: ~a~%" generated-file))))
+    (find-files "." "\\.pyx$")))
 
 (define %standard-phases
   ;; The build phase only builds C extensions and copies the Python sources,
-  ;; while the install phase byte-compiles and copies them to the prefix
-  ;; directory.  The tests are run after the install phase because otherwise
-  ;; the cached .pyc generated during the tests execution seem to interfere
-  ;; with the byte compilation of the install phase.
+  ;; while the install phase copies then byte-compiles the sources to the
+  ;; prefix directory.  The check phase is moved after the installation phase
+  ;; to ease testing the built package.
   (modify-phases gnu:%standard-phases
     (add-after 'unpack 'ensure-no-mtimes-pre-1980 ensure-no-mtimes-pre-1980)
     (add-after 'ensure-no-mtimes-pre-1980 'enable-bytecode-determinism
       enable-bytecode-determinism)
+    (add-after 'enable-bytecode-determinism 'ensure-no-cythonized-files
+      ensure-no-cythonized-files)
     (delete 'bootstrap)
     (delete 'configure)                 ;not needed
     (replace 'build build)
     (delete 'check)                     ;moved after the install phase
     (replace 'install install)
-    (add-after 'install 'check check)
-    (add-after 'install 'wrap wrap)
+    (add-after 'install 'add-install-to-pythonpath add-install-to-pythonpath)
+    (add-after 'add-install-to-pythonpath 'add-install-to-path
+      add-install-to-path)
+    (add-after 'add-install-to-path 'wrap wrap)
+    (add-after 'wrap 'check check)
+    (add-after 'check 'sanity-check sanity-check)
     (add-before 'strip 'rename-pth-file rename-pth-file)))
 
 (define* (python-build #:key inputs (phases %standard-phases)
diff --git a/guix/build/qt-build-system.scm b/guix/build/qt-build-system.scm
index a6955ce4c2..c63bd5ed21 100644
--- a/guix/build/qt-build-system.scm
+++ b/guix/build/qt-build-system.scm
@@ -3,6 +3,7 @@
 ;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2019, 2020, 2021 Hartmut Goebel <h.goebel@crazy-compilers.com>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
diff --git a/guix/build/rakudo-build-system.scm b/guix/build/rakudo-build-system.scm
index dbdeb1ccd2..5cf1cc55bc 100644
--- a/guix/build/rakudo-build-system.scm
+++ b/guix/build/rakudo-build-system.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -97,7 +98,8 @@
     (map (cut string-append dir "/" <>)
          (or (scandir dir (lambda (f)
                             (let ((s (stat (string-append dir "/" f))))
-                              (eq? 'regular (stat:type s)))))
+                              (and (eq? 'regular (stat:type s))
+                                   (not (wrapped-program? f))))))
              '())))
 
   (define bindirs
@@ -107,6 +109,12 @@
                         (string-append dir "/sbin"))))
                 outputs))
 
+  ;; Do not require bash to be present in the package inputs
+  ;; even when there is nothing to wrap.
+  ;; Also, calculate (sh) only once to prevent some I/O.
+  (define %sh (delay (search-input-file inputs "bin/bash")))
+  (define (sh) (force %sh))
+
   (let* ((out  (assoc-ref outputs "out"))
          (var `("PERL6LIB" "," prefix
                 ,(cons (string-append out "/share/perl6/lib,"
@@ -116,7 +124,7 @@
                         (or (getenv "PERL6LIB") "") #\,)))))
     (for-each (lambda (dir)
                 (let ((files (list-of-files dir)))
-                  (for-each (cut wrap-program <> var)
+                  (for-each (cut wrap-program <> #:sh (sh) var)
                             files)))
               bindirs)
     #t))
diff --git a/guix/build/rpath.scm b/guix/build/rpath.scm
deleted file mode 100644
index 75a1fef5ef..0000000000
--- a/guix/build/rpath.scm
+++ /dev/null
@@ -1,59 +0,0 @@
-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
-;;;
-;;; This file is part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix is distributed in the hope that it will be useful, but
-;;; WITHOUT ANY WARRANTY; without even the implied warranty of
-;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;;; GNU General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
-
-(define-module (guix build rpath)
-  #:use-module (ice-9 popen)
-  #:use-module (ice-9 rdelim)
-  #:export (%patchelf
-            file-rpath
-            augment-rpath))
-
-;;; Commentary:
-;;;
-;;; Tools to manipulate the RPATH and RUNPATH of ELF binaries.  Currently they
-;;; rely on PatchELF.
-;;;
-;;; Code:
-
-(define %patchelf
-  ;; The `patchelf' command.
-  (make-parameter "patchelf"))
-
-(define %not-colon
-  (char-set-complement (char-set #\:)))
-
-(define (file-rpath file)
-  "Return the RPATH (or RUNPATH) of FILE as a list of directory names, or #f
-on failure."
-  (let* ((p (open-pipe* OPEN_READ (%patchelf) "--print-rpath" file))
-         (l (read-line p)))
-    (and (zero? (close-pipe p))
-         (string-tokenize l %not-colon))))
-
-(define (augment-rpath file dir)
-  "Add DIR to the front of the RPATH and RUNPATH of FILE.  Return the new
-RPATH as a list, or #f on failure."
-  (let* ((rpath  (or (file-rpath file) '()))
-         (rpath* (cons dir rpath)))
-    (format #t "~a: changing RPATH from ~s to ~s~%"
-            file rpath rpath*)
-    (and (zero? (system* (%patchelf) "--set-rpath"
-                         (string-join rpath* ":") file))
-         rpath*)))
-
-;;; rpath.scm ends here
diff --git a/guix/build/ruby-build-system.scm b/guix/build/ruby-build-system.scm
index c957a61115..9aceb187a4 100644
--- a/guix/build/ruby-build-system.scm
+++ b/guix/build/ruby-build-system.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2015 David Thompson <davet@gnu.org>
 ;;; Copyright © 2015 Pjotr Prins <pjotr.public01@thebird.nl>
 ;;; Copyright © 2015, 2016 Ben Woodcroft <donttrustben@gmail.com>
+;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -73,13 +74,19 @@ directory."
 
 (define* (replace-git-ls-files #:key source #:allow-other-keys)
   "Many gemspec files downloaded from outside rubygems.org use `git ls-files`
-to list of the files to be included in the built gem.  However, since this
+to list the files to be included in the built gem.  However, since this
 operation is not deterministic, we replace it with `find`."
-  (when (not (gem-archive? source))
+  (unless (gem-archive? source)
     (let ((gemspec (first-gemspec)))
+      ;; Do not include the freshly built .gem itself as it causes problems.
+      ;; Strip the first 2 characters ("./") to more exactly match the output
+      ;; given by 'git ls-files'.  This is useful to prevent breaking regexps
+      ;; that could be used to filter the list of files.
       (substitute* gemspec
-        (("`git ls-files`") "`find . -type f |sort`")
-        (("`git ls-files -z`") "`find . -type f -print0 |sort -z`"))))
+        (("`git ls-files`")
+         "`find . -type f -not -regex '.*\\.gem$' | sort | cut -c3-`")
+        (("`git ls-files -z`")
+         "`find . -type f -not -regex '.*\\.gem$' -print0 | sort -z | cut -zc3-`"))))
   #t)
 
 (define* (extract-gemspec #:key source #:allow-other-keys)
@@ -129,11 +136,7 @@ is #f."
                   #:allow-other-keys)
   "Install the gem archive SOURCE to the output store item.  Additional
 GEM-FLAGS are passed to the 'gem' invocation, if present."
-  (let* ((ruby-version
-          (match:substring (string-match "ruby-(.*)\\.[0-9]$"
-                                         (assoc-ref inputs "ruby"))
-                           1))
-         (out (assoc-ref outputs "out"))
+  (let* ((out (assoc-ref outputs "out"))
          (vendor-dir (string-append out "/lib/ruby/vendor_ruby"))
          (gem-file (first-matching-file "\\.gem$"))
          (gem-file-basename (basename gem-file))
@@ -144,8 +147,8 @@ GEM-FLAGS are passed to the 'gem' invocation, if present."
     (setenv "GEM_VENDOR" vendor-dir)
 
     (or (zero?
-          ;; 'zero? system*' allows the custom error handling to function as
-          ;; expected, while 'invoke' raises its own exception.
+         ;; 'zero? system*' allows the custom error handling to function as
+         ;; expected, while 'invoke' raises its own exception.
          (apply system* "gem" "install" gem-file
                 "--verbose"
                 "--local" "--ignore-dependencies" "--vendor"
diff --git a/guix/build/texlive-build-system.scm b/guix/build/texlive-build-system.scm
index 841c631dae..353fb934a6 100644
--- a/guix/build/texlive-build-system.scm
+++ b/guix/build/texlive-build-system.scm
@@ -1,5 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2021 Thiago Jung Bauermann <bauermann@kolabnow.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -33,46 +35,19 @@
 ;;
 ;; Code:
 
-(define (compile-with-latex format file)
-  (invoke format
+(define (compile-with-latex engine format file)
+  (invoke engine
           "-interaction=nonstopmode"
           "-output-directory=build"
-          (string-append "&" format)
+          (if format (string-append "&" format) "-ini")
           file))
 
-(define* (configure #:key inputs #:allow-other-keys)
-  (let* ((out       (string-append (getcwd) "/.texlive-union"))
-         (texmf.cnf (string-append out "/share/texmf-dist/web2c/texmf.cnf")))
-    ;; Build a modifiable union of all inputs (but exclude bash)
-    (match inputs
-      (((names . directories) ...)
-       (union-build out (filter directory-exists? directories)
-                    #:create-all-directories? #t
-                    #:log-port (%make-void-port "w"))))
-
-    ;; The configuration file "texmf.cnf" is provided by the
-    ;; "texlive-bin" package.  We take it and override only the
-    ;; setting for TEXMFROOT and TEXMF.  This file won't be consulted
-    ;; by default, though, so we still need to set TEXMFCNF.
-    (substitute* texmf.cnf
-      (("^TEXMFROOT = .*")
-       (string-append "TEXMFROOT = " out "/share\n"))
-      (("^TEXMF = .*")
-       "TEXMF = $TEXMFROOT/share/texmf-dist\n"))
-    (setenv "TEXMFCNF" (dirname texmf.cnf))
-    (setenv "TEXMF" (string-append out "/share/texmf-dist"))
-
-    ;; Don't truncate lines.
-    (setenv "error_line" "254") ; must be less than 255
-    (setenv "half_error_line" "238") ; must be less than error_line - 15
-    (setenv "max_print_line" "1000"))
+(define* (build #:key inputs build-targets tex-engine tex-format
+                #:allow-other-keys)
   (mkdir "build")
-  #t)
-
-(define* (build #:key inputs build-targets tex-format #:allow-other-keys)
-  (every (cut compile-with-latex tex-format <>)
-         (if build-targets build-targets
-             (scandir "." (cut string-suffix? ".ins" <>)))))
+  (for-each (cut compile-with-latex tex-engine tex-format <>)
+            (if build-targets build-targets
+                (scandir "." (cut string-suffix? ".ins" <>)))))
 
 (define* (install #:key outputs tex-directory #:allow-other-keys)
   (let* ((out (assoc-ref outputs "out"))
@@ -81,13 +56,12 @@
     (mkdir-p target)
     (for-each delete-file (find-files "." "\\.(log|aux)$"))
     (for-each (cut install-file <> target)
-              (find-files "build" ".*"))
-    #t))
+              (find-files "build" ".*"))))
 
 (define %standard-phases
   (modify-phases gnu:%standard-phases
     (delete 'bootstrap)
-    (replace 'configure configure)
+    (delete 'configure)
     (replace 'build build)
     (delete 'check)
     (replace 'install install)))
diff --git a/guix/build/utils.scm b/guix/build/utils.scm
index 419c10195b..3beb7da67a 100644
--- a/guix/build/utils.scm
+++ b/guix/build/utils.scm
@@ -1,10 +1,13 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
-;;; Copyright © 2015, 2018 Mark H Weaver <mhw@netris.org>
+;;; Copyright © 2015, 2018, 2021 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -49,9 +52,14 @@
             package-name->name+version
             parallel-job-count
 
+            compressor
+            tarball?
+            %xz-parallel-args
+
             directory-exists?
             executable-file?
             symbolic-link?
+            call-with-temporary-output-file
             call-with-ascii-input-file
             elf-file?
             ar-file?
@@ -72,6 +80,11 @@
             search-path-as-string->list
             list->search-path-as-string
             which
+            search-input-file
+            search-input-directory
+            search-error?
+            search-error-path
+            search-error-file
 
             every*
             alist-cons-before
@@ -89,7 +102,7 @@
             patch-/usr/bin/file
             fold-port-matches
             remove-store-references
-            wrapper?
+            wrapped-program?
             wrap-program
             wrap-script
 
@@ -134,12 +147,39 @@
 
 
 ;;;
+;;; Compression helpers.
+;;;
+
+(define (compressor file-name)
+  "Return the name of the compressor package/binary used to compress or
+decompress FILE-NAME, based on its file extension, else false."
+  (cond ((string-suffix? "gz"  file-name)  "gzip")
+        ((string-suffix? "Z"   file-name)  "gzip")
+        ((string-suffix? "bz2" file-name)  "bzip2")
+        ((string-suffix? "lz"  file-name)  "lzip")
+        ((string-suffix? "zip" file-name)  "unzip")
+        ((string-suffix? "xz"  file-name)  "xz")
+        (else #f)))                ;no compression used/unknown file extension
+
+(define (tarball? file-name)
+  "True when FILE-NAME has a tar file extension."
+  (string-match "\\.(tar(\\..*)?|tgz|tbz)$" file-name))
+
+(define (%xz-parallel-args)
+  "The xz arguments required to enable bit-reproducible, multi-threaded
+compression."
+  (list "--memlimit=50%"
+        (format #f "--threads=~a" (max 2 (parallel-job-count)))))
+
+
+;;;
 ;;; Directories.
 ;;;
 
 (define (%store-directory)
   "Return the directory name of the store."
-  (or (getenv "NIX_STORE")
+  (or (getenv "NIX_STORE_DIR")          ;outside of builder
+      (getenv "NIX_STORE")              ;inside builder, set by the daemon
       "/gnu/store"))
 
 (define (store-file-name? file)
@@ -197,6 +237,22 @@ introduce the version part."
   "Return #t if FILE is a symbolic link (aka. \"symlink\".)"
   (eq? (stat:type (lstat file)) 'symlink))
 
+(define (call-with-temporary-output-file proc)
+  "Call PROC with a name of a temporary file and open output port to that
+file; close the file and delete it when leaving the dynamic extent of this
+call."
+  (let* ((directory (or (getenv "TMPDIR") "/tmp"))
+         (template  (string-append directory "/guix-file.XXXXXX"))
+         (out       (mkstemp! template)))
+    (dynamic-wind
+      (lambda ()
+        #t)
+      (lambda ()
+        (proc template out))
+      (lambda ()
+        (false-if-exception (close out))
+        (false-if-exception (delete-file template))))))
+
 (define (call-with-ascii-input-file file proc)
   "Open FILE as an ASCII or binary file, and pass the resulting port to
 PROC.  FILE is closed when PROC's dynamic extent is left.  Return the
@@ -322,11 +378,13 @@ name."
                            #:key
                            (log (current-output-port))
                            (follow-symlinks? #f)
-                           keep-mtime?)
+                           (copy-file copy-file)
+                           keep-mtime? keep-permissions?)
   "Copy SOURCE directory to DESTINATION.  Follow symlinks if FOLLOW-SYMLINKS?
-is true; otherwise, just preserve them.  When KEEP-MTIME? is true, keep the
-modification time of the files in SOURCE on those of DESTINATION.  Write
-verbose output to the LOG port."
+is true; otherwise, just preserve them.  Call COPY-FILE to copy regular files.
+When KEEP-MTIME? is true, keep the modification time of the files in SOURCE on
+those of DESTINATION.  When KEEP-PERMISSIONS? is true, preserve file
+permissions.  Write verbose output to the LOG port."
   (define strip-source
     (let ((len (string-length source)))
       (lambda (file)
@@ -343,16 +401,21 @@ verbose output to the LOG port."
                              (symlink target dest)))
                           (else
                            (copy-file file dest)
-                           (when keep-mtime?
-                             (set-file-time dest stat))))))
+                           (when keep-permissions?
+                             (chmod dest (stat:perms stat)))))
+                        (when keep-mtime?
+                          (set-file-time dest stat))))
                     (lambda (dir stat result)     ; down
                       (let ((target (string-append destination
                                                    (strip-source dir))))
-                        (mkdir-p target)
-                        (when keep-mtime?
-                          (set-file-time target stat))))
+                        (mkdir-p target)))
                     (lambda (dir stat result)     ; up
-                      result)
+                      (let ((target (string-append destination
+                                                   (strip-source dir))))
+                        (when keep-mtime?
+                          (set-file-time target stat))
+                        (when keep-permissions?
+                          (chmod target (stat:perms stat)))))
                     (const #t)                    ; skip
                     (lambda (file stat errno result)
                       (format (current-error-port) "i/o error: ~a: ~a~%"
@@ -365,6 +428,16 @@ verbose output to the LOG port."
                         stat
                         lstat)))
 
+(define-syntax-rule (warn-on-error expr file)
+  (catch 'system-error
+    (lambda ()
+      expr)
+    (lambda args
+      (format (current-error-port)
+              "warning: failed to delete ~a: ~a~%"
+              file (strerror
+                    (system-error-errno args))))))
+
 (define* (delete-file-recursively dir
                                   #:key follow-mounts?)
   "Delete DIR recursively, like `rm -rf', without following symlinks.  Don't
@@ -375,10 +448,10 @@ errors."
                         (or follow-mounts?
                             (= dev (stat:dev stat))))
                       (lambda (file stat result)   ; leaf
-                        (delete-file file))
+                        (warn-on-error (delete-file file) file))
                       (const #t)                   ; down
                       (lambda (dir stat result)    ; up
-                        (rmdir dir))
+                        (warn-on-error (rmdir dir) dir))
                       (const #t)                   ; skip
                       (lambda (file stat errno result)
                         (format (current-error-port)
@@ -546,6 +619,40 @@ PROGRAM could not be found."
   (search-path (search-path-as-string->list (getenv "PATH"))
                program))
 
+(define-condition-type &search-error &error
+  search-error?
+  (path         search-error-path)
+  (file         search-error-file))
+
+(define (search-input-file inputs file)
+  "Find a file named FILE among the INPUTS and return its absolute file name.
+
+FILE must be a string like \"bin/sh\". If FILE is not found, an exception is
+raised."
+  (match inputs
+    (((_ . directories) ...)
+     ;; Accept both "bin/sh" and "/bin/sh" as FILE argument.
+     (let ((file (string-trim file #\/)))
+       (or (search-path directories file)
+           (raise
+            (condition (&search-error (path directories) (file file)))))))))
+
+(define (search-input-directory inputs directory)
+  "Find a sub-directory named DIRECTORY among the INPUTS and return its
+absolute file name.
+
+DIRECTORY must be a string like \"xml/dtd/docbook\".  If DIRECTORY is not
+found, an exception is raised."
+  (match inputs
+    (((_ . directories) ...)
+     (or (any (lambda (parent)
+                (let ((directory (string-append parent "/" directory)))
+                  (and (directory-exists? directory)
+                       directory)))
+              directories)
+         (raise (condition
+                 (&search-error (path directories) (file directory))))))))
+
 
 ;;;
 ;;; Phases.
@@ -746,6 +853,31 @@ PROC's result is returned."
       (lambda (key . args)
         (false-if-exception (delete-file template))))))
 
+(define (unused-private-use-code-point s)
+  "Find a code point within a Unicode Private Use Area that is not
+present in S, and return the corresponding character object.  If one
+cannot be found, return false."
+  (define (scan lo hi)
+    (and (<= lo hi)
+         (let ((c (integer->char lo)))
+           (if (string-index s c)
+               (scan (+ lo 1) hi)
+               c))))
+  (or (scan   #xE000   #xF8FF)
+      (scan  #xF0000  #xFFFFD)
+      (scan #x100000 #x10FFFD)))
+
+(define (replace-char c1 c2 s)
+  "Return a string which is equal to S except with all instances of C1
+replaced by C2.  If C1 and C2 are equal, return S."
+  (if (char=? c1 c2)
+      s
+      (string-map (lambda (c)
+                    (if (char=? c c1)
+                        c2
+                        c))
+                  s)))
+
 (define (substitute file pattern+procs)
   "PATTERN+PROCS is a list of regexp/two-argument-procedure pairs.  For each
 line of FILE, and for each PATTERN that it matches, call the corresponding
@@ -764,16 +896,26 @@ end of a line; by itself it won't match the terminating newline of a line."
         (let loop ((line (read-line in 'concat)))
           (if (eof-object? line)
               #t
-              (let ((line (fold (lambda (r+p line)
-                                  (match r+p
-                                    ((regexp . proc)
-                                     (match (list-matches regexp line)
-                                       ((and m+ (_ _ ...))
-                                        (proc line m+))
-                                       (_ line)))))
-                                line
-                                rx+proc)))
-                (display line out)
+              ;; Work around the fact that Guile's regexp-exec does not handle
+              ;; NUL characters (a limitation of the underlying GNU libc's
+              ;; regexec) by temporarily replacing them by an unused private
+              ;; Unicode code point.
+              ;; TODO: Use SRFI-115 instead, once available in Guile.
+              (let* ((nul* (or (and (string-index line #\nul)
+                                    (unused-private-use-code-point line))
+                               #\nul))
+                     (line* (replace-char #\nul nul* line))
+                     (line1* (fold (lambda (r+p line)
+                                     (match r+p
+                                       ((regexp . proc)
+                                        (match (list-matches regexp line)
+                                          ((and m+ (_ _ ...))
+                                           (proc line m+))
+                                          (_ line)))))
+                                   line*
+                                   rx+proc))
+                     (line1 (replace-char nul* #\nul line1*)))
+                (display line1 out)
                 (loop (read-line in 'concat)))))))))
 
 
@@ -800,7 +942,7 @@ sub-expression.  For example:
      ((\"hello\")
       \"good morning\\n\")
      ((\"foo([a-z]+)bar(.*)$\" all letters end)
-      (string-append \"baz\" letter end)))
+      (string-append \"baz\" letters end)))
 
 Here, anytime a line of FILE contains \"hello\", it is replaced by \"good
 morning\".  Anytime a line of FILE matches the second regexp, ALL is bound to
@@ -853,29 +995,45 @@ match the terminating newline of a line."
 ;;;
 
 (define* (dump-port in out
+                    #:optional len
                     #:key (buffer-size 16384)
                     (progress (lambda (t k) (k))))
-  "Read as much data as possible from IN and write it to OUT, using chunks of
-BUFFER-SIZE bytes.  Call PROGRESS at the beginning and after each successful
-transfer of BUFFER-SIZE bytes or less, passing it the total number of bytes
-transferred and the continuation of the transfer as a thunk."
+  "Read LEN bytes from IN or as much data as possible if LEN is #f, and write
+it to OUT, using chunks of BUFFER-SIZE bytes.  Call PROGRESS at the beginning
+and after each successful transfer of BUFFER-SIZE bytes or less, passing it
+the total number of bytes transferred and the continuation of the transfer as
+a thunk."
   (define buffer
     (make-bytevector buffer-size))
 
   (define (loop total bytes)
     (or (eof-object? bytes)
+        (and len (= total len))
         (let ((total (+ total bytes)))
           (put-bytevector out buffer 0 bytes)
           (progress total
                     (lambda ()
                       (loop total
-                            (get-bytevector-n! in buffer 0 buffer-size)))))))
+                            (get-bytevector-n! in buffer 0
+                                               (if len
+                                                   (min (- len total) buffer-size)
+                                                   buffer-size))))))))
 
   ;; Make sure PROGRESS is called when we start so that it can measure
   ;; throughput.
   (progress 0
             (lambda ()
-              (loop 0 (get-bytevector-n! in buffer 0 buffer-size)))))
+              (loop 0 (get-bytevector-n! in buffer 0
+                                         (if len
+                                             (min len buffer-size)
+                                             buffer-size))))))
+
+(define AT_SYMLINK_NOFOLLOW
+  ;; Guile 2.0 did not define this constant, hence this hack.
+  (let ((variable (module-variable the-root-module 'AT_SYMLINK_NOFOLLOW)))
+    (if variable
+        (variable-ref variable)
+        256)))                                    ;for GNU/Linux
 
 (define (set-file-time file stat)
   "Set the atime/mtime of FILE to that specified by STAT."
@@ -883,7 +1041,8 @@ transferred and the continuation of the transfer as a thunk."
          (stat:atime stat)
          (stat:mtime stat)
          (stat:atimensec stat)
-         (stat:mtimensec stat)))
+         (stat:mtimensec stat)
+         AT_SYMLINK_NOFOLLOW))
 
 (define (get-char* p)
   ;; We call it `get-char', but that's really a binary version
@@ -1108,14 +1267,14 @@ known as `nuke-refs' in Nixpkgs."
   (program    wrap-error-program)
   (type       wrap-error-type))
 
-(define (wrapper? prog)
-  "Return #t if PROG is a wrapper as produced by 'wrap-program'."
+(define (wrapped-program? prog)
+  "Return #t if PROG is a program that was moved and wrapped by 'wrap-program'."
   (and (file-exists? prog)
        (let ((base (basename prog)))
          (and (string-prefix? "." base)
               (string-suffix? "-real" base)))))
 
-(define* (wrap-program prog #:rest vars)
+(define* (wrap-program prog #:key (sh (which "bash")) #:rest vars)
   "Make a wrapper for PROG.  VARS should look like this:
 
   '(VARIABLE DELIMITER POSITION LIST-OF-DIRECTORIES)
@@ -1142,7 +1301,12 @@ programs that expect particular shared libraries to be in $LD_LIBRARY_PATH, or
 modules in $GUILE_LOAD_PATH, etc.
 
 If PROG has previously been wrapped by 'wrap-program', the wrapper is extended
-with definitions for VARS."
+with definitions for VARS. If it is not, SH will be used as interpreter."
+  (define vars/filtered
+    (match vars
+      ((#:sh _ . vars) vars)
+      (vars vars)))
+
   (define wrapped-file
     (string-append (dirname prog) "/." (basename prog) "-real"))
 
@@ -1184,6 +1348,9 @@ with definitions for VARS."
        (format #f "export ~a=\"$~a${~a:+:}~a\""
                var var var (string-join rest ":")))))
 
+  (when (wrapped-program? prog)
+    (error (string-append prog " is a wrapper. Refusing to wrap.")))
+
   (if already-wrapped?
 
       ;; PROG is already a wrapper: add the new "export VAR=VALUE" lines just
@@ -1193,7 +1360,7 @@ with definitions for VARS."
         (for-each (lambda (var)
                     (display (export-variable var) port)
                     (newline port))
-                  vars)
+                  vars/filtered)
         (display last port)
         (close-port port))
 
@@ -1205,8 +1372,8 @@ with definitions for VARS."
           (lambda (port)
             (format port
                     "#!~a~%~a~%exec -a \"$0\" \"~a\" \"$@\"~%"
-                    (which "bash")
-                    (string-join (map export-variable vars) "\n")
+                    sh
+                    (string-join (map export-variable vars/filtered) "\n")
                     (canonicalize-path wrapped-file))))
 
         (chmod prog-tmp #o755)
@@ -1307,7 +1474,7 @@ not supported."
                 (lambda ()
                   (call-with-ascii-input-file prog
                     (lambda (p)
-                      (format out header)
+                      (display header out)
                       (dump-port p out)
                       (close out)
                       (chmod template mode)
diff --git a/guix/gexp.scm b/guix/gexp.scm
index f3d278b3e6..ff5ede2857 100644
--- a/guix/gexp.scm
+++ b/guix/gexp.scm
@@ -40,6 +40,7 @@
   #:use-module (ice-9 match)
   #:export (gexp
             gexp?
+            sexp->gexp
             with-imported-modules
             with-extensions
             let-system
@@ -106,6 +107,10 @@
             lowered-gexp-load-path
             lowered-gexp-load-compiled-path
 
+            with-build-variables
+            input-tuples->gexp
+            outputs->gexp
+
             gexp->derivation
             gexp->file
             gexp->script
@@ -113,6 +118,7 @@
             mixed-text-file
             file-union
             directory-union
+
             imported-files
             imported-modules
             compiled-modules
@@ -197,6 +203,18 @@ As a result, the S-expression will be approximate if GEXP has references."
 
 (set-record-type-printer! <gexp> write-gexp)
 
+(define (gexp-with-hidden-inputs gexp inputs)
+  "Add INPUTS, a list of <gexp-input>, to the references of GEXP.  These are
+\"hidden inputs\" because they do not actually appear in the expansion of GEXP
+returned by 'gexp->sexp'."
+  (make-gexp (append inputs (gexp-references gexp))
+             (gexp-self-modules gexp)
+             (gexp-self-extensions gexp)
+             (let ((extra (length inputs)))
+               (lambda args
+                 (apply (gexp-proc gexp) (drop args extra))))
+             (gexp-location gexp)))
+
 
 ;;;
 ;;; Methods.
@@ -271,14 +289,17 @@ OBJ must be an object that has an associated gexp compiler, such as a
         (#f
          (raise (condition (&gexp-input-error (input obj)))))
         (lower
-         ;; Cache in STORE the result of lowering OBJ.
-         (mcached (mlet %store-monad ((lowered (lower obj system target)))
-                    (if (and (struct? lowered)
-                             (not (derivation? lowered)))
-                        (loop lowered)
-                        (return lowered)))
-                  obj
-                  system target graft?))))))
+         ;; Cache in STORE the result of lowering OBJ.  If OBJ is a
+         ;; derivation, bypass the cache.
+         (if (derivation? obj)
+             (return obj)
+             (mcached (mlet %store-monad ((lowered (lower obj system target)))
+                        (if (and (struct? lowered)
+                                 (not (derivation? lowered)))
+                            (loop lowered)
+                            (return lowered)))
+                      obj
+                      system target graft?)))))))
 
 (define* (lower+expand-object obj
                               #:optional (system (%current-system))
@@ -293,9 +314,11 @@ expand to file names, but it's possible to expand to a plain data type."
        (raise (condition (&gexp-input-error (input obj)))))
       (lower
        (mlet* %store-monad ((graft?  (grafting?))
-                            (lowered (mcached (lower obj system target)
-                                              obj
-                                              system target graft?)))
+                            (lowered (if (derivation? obj)
+                                         (return obj)
+                                         (mcached (lower obj system target)
+                                                  obj
+                                                  system target graft?))))
          ;; LOWER might return something that needs to be further
          ;; lowered.
          (if (struct? lowered)
@@ -900,8 +923,9 @@ corresponding <derivation-input> or store item."
 
   (match graphs
     (((file-names . inputs) ...)
-     (mlet %store-monad ((inputs (lower-inputs (map tuple->gexp-input inputs)
-                                               system target)))
+     (mlet %store-monad ((inputs (without-grafting
+                                  (lower-inputs (map tuple->gexp-input inputs)
+                                                system target))))
        (return (map cons file-names inputs))))))
 
 (define* (lower-references lst #:key system target)
@@ -914,13 +938,15 @@ names and file names suitable for the #:allowed-references argument to
        ((? string? output)
         (return output))
        (($ <gexp-input> thing output native?)
-        (mlet %store-monad ((drv (lower-object thing system
-                                               #:target (if native?
-                                                            #f target))))
+        (mlet %store-monad ((drv (without-grafting
+                                  (lower-object thing system
+                                                #:target (if native?
+                                                             #f target)))))
           (return (derivation->output-path drv output))))
        (thing
-        (mlet %store-monad ((drv (lower-object thing system
-                                               #:target target)))
+        (mlet %store-monad ((drv (without-grafting
+                                  (lower-object thing system
+                                                #:target target))))
           (return (derivation->output-path drv))))))
 
     (mapm/accumulate-builds lower lst)))
@@ -1607,7 +1633,8 @@ last one is created from the given <scheme-file> object."
                            (guile (%guile-for-build))
                            (module-path %load-path)
                            (extensions '())
-                           (deprecation-warnings #f))
+                           (deprecation-warnings #f)
+                           (optimization-level 1))
   "Return a derivation that builds a tree containing the `.go' files
 corresponding to MODULES.  All the MODULES are built in a context where
 they can refer to each other.  When TARGET is true, cross-compile MODULES for
@@ -1618,127 +1645,178 @@ TARGET, a GNU triplet."
                                                  #:system system
                                                  #:guile guile
                                                  #:module-path
-                                                 module-path)))
+                                                 module-path))
+                      (extensions (mapm %store-monad
+                                        (lambda (extension)
+                                          (lower-object extension system
+                                                        #:target #f))
+                                        extensions)))
     (define build
-      (gexp
-       (begin
-         (primitive-load (ungexp %utils-module))  ;for 'mkdir-p'
-
-         (use-modules (ice-9 ftw)
-                      (ice-9 format)
-                      (srfi srfi-1)
-                      (srfi srfi-26)
-                      (system base target)
-                      (system base compile))
-
-         (define (regular? file)
-           (not (member file '("." ".."))))
-
-         (define (process-entry entry output processed)
-           (if (file-is-directory? entry)
-               (let ((output (string-append output "/" (basename entry))))
-                 (mkdir-p output)
-                 (process-directory entry output processed))
-               (let* ((base   (basename entry ".scm"))
-                      (output (string-append output "/" base ".go")))
-                 (format #t "[~2@a/~2@a] Compiling '~a'...~%"
-                         (+ 1 processed (ungexp total))
-                         (ungexp (* total 2))
-                         entry)
-
-                 (ungexp-splicing
-                  (if target
-                      (gexp ((with-target (ungexp target)
+      (gexp-with-hidden-inputs
+       (gexp
+        (begin
+          (primitive-load (ungexp %utils-module)) ;for 'mkdir-p'
+
+          (use-modules (ice-9 ftw)
+                       (ice-9 format)
+                       (srfi srfi-1)
+                       (srfi srfi-26)
+                       (system base target)
+                       (system base compile))
+
+          (define modules
+            (getenv "modules"))
+
+          (define total
+            (string->number (getenv "module count")))
+
+          (define extensions
+            (string-split (getenv "extensions") #\space))
+
+          (define target
+            (getenv "target"))
+
+          (define optimization-level
+            (string->number (getenv "optimization level")))
+
+          (define optimizations-for-level
+            (or (and=> (false-if-exception
+                        (resolve-interface '(system base optimize)))
+                       (lambda (iface)
+                         (module-ref iface 'optimizations-for-level))) ;Guile 3.0
+                (const '())))
+
+          (define (regular? file)
+            (not (member file '("." ".."))))
+
+          (define (process-entry entry output processed)
+            (if (file-is-directory? entry)
+                (let ((output (string-append output "/" (basename entry))))
+                  (mkdir-p output)
+                  (process-directory entry output processed))
+                (let* ((base   (basename entry ".scm"))
+                       (output (string-append output "/" base ".go")))
+                  (format #t "[~2@a/~2@a] Compiling '~a'...~%"
+                          (+ 1 processed total)
+                          (* total 2)
+                          entry)
+
+                  (with-target (or target %host-type)
                                (lambda ()
                                  (compile-file entry
                                                #:output-file output
                                                #:opts
-                                               %auto-compilation-options)))))
-                      (gexp ((compile-file entry
-                                           #:output-file output
-                                           #:opts %auto-compilation-options)))))
-
-                 (+ 1 processed))))
-
-         (define (process-directory directory output processed)
-           (let ((entries (map (cut string-append directory "/" <>)
-                               (scandir directory regular?))))
-             (fold (cut process-entry <> output <>)
-                   processed
-                   entries)))
-
-         (define* (load-from-directory directory
-                                       #:optional (loaded 0))
-           "Load all the source files found in DIRECTORY."
-           ;; XXX: This works around <https://bugs.gnu.org/15602>.
-           (let ((entries (map (cut string-append directory "/" <>)
-                               (scandir directory regular?))))
-             (fold (lambda (file loaded)
-                     (if (file-is-directory? file)
-                         (load-from-directory file loaded)
-                         (begin
-                           (format #t "[~2@a/~2@a] Loading '~a'...~%"
-                                   (+ 1 loaded) (ungexp (* 2 total))
-                                   file)
-                           (save-module-excursion
-                            (lambda ()
-                              (primitive-load file)))
-                           (+ 1 loaded))))
-                   loaded
-                   entries)))
-
-         (setvbuf (current-output-port)
-                  (cond-expand (guile-2.2 'line) (else _IOLBF)))
-
-         (define mkdir-p
-           ;; Capture 'mkdir-p'.
-           (@ (guix build utils) mkdir-p))
-
-         ;; Add EXTENSIONS to the search path.
-         (set! %load-path
-           (append (map (lambda (extension)
-                          (string-append extension
-                                         "/share/guile/site/"
-                                         (effective-version)))
-                        '((ungexp-native-splicing extensions)))
-                   %load-path))
-         (set! %load-compiled-path
-           (append (map (lambda (extension)
-                          (string-append extension "/lib/guile/"
-                                         (effective-version)
-                                         "/site-ccache"))
-                        '((ungexp-native-splicing extensions)))
-                   %load-compiled-path))
-
-         (set! %load-path (cons (ungexp modules) %load-path))
-
-         ;; Above we loaded our own (guix build utils) but now we may need to
-         ;; load a compile a different one.  Thus, force a reload.
-         (let ((utils (string-append (ungexp modules)
-                                     "/guix/build/utils.scm")))
-           (when (file-exists? utils)
-             (load utils)))
-
-         (mkdir (ungexp output))
-         (chdir (ungexp modules))
-
-         (load-from-directory ".")
-         (process-directory "." (ungexp output) 0))))
-
-    ;; TODO: Pass MODULES as an environment variable.
+                                               `(,@%auto-compilation-options
+                                                 ,@(optimizations-for-level
+                                                    optimization-level)))))
+
+                  (+ 1 processed))))
+
+          (define (process-directory directory output processed)
+            (let ((entries (map (cut string-append directory "/" <>)
+                                (scandir directory regular?))))
+              (fold (cut process-entry <> output <>)
+                    processed
+                    entries)))
+
+          (define* (load-from-directory directory
+                                        #:optional (loaded 0))
+            "Load all the source files found in DIRECTORY."
+            ;; XXX: This works around <https://bugs.gnu.org/15602>.
+            (let ((entries (map (cut string-append directory "/" <>)
+                                (scandir directory regular?))))
+              (fold (lambda (file loaded)
+                      (if (file-is-directory? file)
+                          (load-from-directory file loaded)
+                          (begin
+                            (format #t "[~2@a/~2@a] Loading '~a'...~%"
+                                    (+ 1 loaded) (* 2 total)
+                                    file)
+                            (save-module-excursion
+                             (lambda ()
+                               (primitive-load file)))
+                            (+ 1 loaded))))
+                    loaded
+                    entries)))
+
+          (setvbuf (current-output-port)
+                   (cond-expand (guile-2.2 'line) (else _IOLBF)))
+
+          (define mkdir-p
+            ;; Capture 'mkdir-p'.
+            (@ (guix build utils) mkdir-p))
+
+          ;; Remove environment variables for internal consumption.
+          (unsetenv "modules")
+          (unsetenv "module count")
+          (unsetenv "extensions")
+          (unsetenv "target")
+          (unsetenv "optimization level")
+
+          ;; Add EXTENSIONS to the search path.
+          (set! %load-path
+            (append (map (lambda (extension)
+                           (string-append extension
+                                          "/share/guile/site/"
+                                          (effective-version)))
+                         extensions)
+                    %load-path))
+          (set! %load-compiled-path
+            (append (map (lambda (extension)
+                           (string-append extension "/lib/guile/"
+                                          (effective-version)
+                                          "/site-ccache"))
+                         extensions)
+                    %load-compiled-path))
+
+          (set! %load-path (cons modules %load-path))
+
+          ;; Above we loaded our own (guix build utils) but now we may need to
+          ;; load a compile a different one.  Thus, force a reload.
+          (let ((utils (string-append modules
+                                      "/guix/build/utils.scm")))
+            (when (file-exists? utils)
+              (load utils)))
+
+          (mkdir (ungexp output))
+          (chdir modules)
+
+          (load-from-directory ".")
+          (process-directory "." (ungexp output) 0)))
+       (append (map gexp-input extensions)
+               (list (gexp-input modules)))))
+
     (gexp->derivation name build
+                      #:script-name "compile-modules"
                       #:system system
                       #:target target
                       #:guile-for-build guile
                       #:local-build? #t
                       #:env-vars
-                      (case deprecation-warnings
-                        ((#f)
-                         '(("GUILE_WARN_DEPRECATED" . "no")))
-                        ((detailed)
-                         '(("GUILE_WARN_DEPRECATED" . "detailed")))
-                        (else
-                         '())))))
+                      `(("modules"
+                         . ,(if (derivation? modules)
+                                (derivation->output-path modules)
+                                modules))
+                        ("module count" . ,(number->string total))
+                        ("extensions"
+                         . ,(string-join
+                             (map (match-lambda
+                                    ((? derivation? drv)
+                                     (derivation->output-path drv))
+                                    ((? string? str) str))
+                                  extensions)))
+                        ("optimization level"
+                         . ,(number->string optimization-level))
+                        ,@(if target
+                              `(("target" . ,target))
+                              '())
+                        ,@(case deprecation-warnings
+                            ((#f)
+                             '(("GUILE_WARN_DEPRECATED" . "no")))
+                            ((detailed)
+                             '(("GUILE_WARN_DEPRECATED" . "detailed")))
+                            (else
+                             '()))))))
 
 
 ;;;
@@ -1806,6 +1884,72 @@ Assume MODULES are compiled with GUILE."
                                          extensions))
                               %load-compiled-path)))))))))
 
+(define* (input-tuples->gexp inputs #:key native?)
+  "Given INPUTS, a list of label/gexp-input tuples, return a gexp that expands
+to an input alist."
+  (define references
+    (map (match-lambda
+           ((label input) input))
+         inputs))
+
+  (define labels
+    (match inputs
+      (((labels . _) ...)
+       labels)))
+
+  (define (proc . args)
+    (cons 'quote (list (map cons labels args))))
+
+  ;; This gexp is more efficient than an equivalent hand-written gexp: fewer
+  ;; allocations, no need to scan long list-valued <gexp-input> records in
+  ;; search of file-like objects, etc.
+  (make-gexp references '() '() proc
+             (source-properties inputs)))
+
+(define (outputs->gexp outputs)
+  "Given OUTPUTS, a list of output names, return a gexp that expands to an
+output alist."
+  (define references
+    (map gexp-output outputs))
+
+  (define (proc . args)
+    `(list ,@(map (lambda (name)
+                    `(cons ,name ((@ (guile) getenv) ,name)))
+                  outputs)))
+
+  ;; This gexp is more efficient than an equivalent hand-written gexp.
+  (make-gexp references '() '() proc
+             (source-properties outputs)))
+
+(define (with-build-variables inputs outputs body)
+  "Return a gexp that surrounds BODY with a definition of the legacy
+'%build-inputs', '%outputs', and '%output' variables based on INPUTS, a list
+of name/gexp-input tuples, and OUTPUTS, a list of strings."
+
+  ;; These two variables are defined for backward compatibility.  They are
+  ;; used by package expressions.  These must be top-level defines so that
+  ;; 'use-modules' form in BODY that are required for macro expansion work as
+  ;; expected.
+  (gexp (begin
+          (define %build-inputs
+            (ungexp (input-tuples->gexp inputs)))
+          (define %outputs
+            (ungexp (outputs->gexp outputs)))
+          (define %output
+            (assoc-ref %outputs "out"))
+
+          (ungexp body))))
+
+(define (sexp->gexp sexp)
+  "Turn SEXP into a gexp without any references.
+
+Using this is a way for the caller to tell that SEXP doesn't need to be
+scanned for file-like objects, thereby reducing processing costs.  This is
+particularly useful if SEXP is a long list or a deep tree."
+  (make-gexp '() '() '()
+             (lambda () sexp)
+             (source-properties sexp)))
+
 (define* (gexp->script name exp
                        #:key (guile (default-guile))
                        (module-path %load-path)
diff --git a/guix/grafts.scm b/guix/grafts.scm
index 4c69eb35a2..0ffda8f9aa 100644
--- a/guix/grafts.scm
+++ b/guix/grafts.scm
@@ -42,6 +42,7 @@
             graft-derivation/shallow
 
             %graft?
+            without-grafting
             set-grafting
             grafting?))
 
@@ -341,6 +342,17 @@ DRV, and graft DRV itself to refer to those grafted dependencies."
   ;; Whether to honor package grafts by default.
   (make-parameter #t))
 
+(define (call-without-grafting thunk)
+  (lambda (store)
+    (values (parameterize ((%graft? #f))
+              (run-with-store store (thunk)))
+            store)))
+
+(define-syntax-rule (without-grafting mexp ...)
+  "Bind monadic expressions MEXP in a dynamic extent where '%graft?' is
+false."
+  (call-without-grafting (lambda () (mbegin %store-monad mexp ...))))
+
 (define-inlinable (set-grafting enable?)
   ;; This monadic procedure enables grafting when ENABLE? is true, and
   ;; disables it otherwise.  It returns the previous setting.
diff --git a/guix/import/cran.scm b/guix/import/cran.scm
index f649928c5a..510882bc00 100644
--- a/guix/import/cran.scm
+++ b/guix/import/cran.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ricardo Wurmus <rekado@elephly.net>
-;;; Copyright © 2015, 2016, 2017, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2017, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2020 Martin Becze <mjbecze@riseup.net>
 ;;;
@@ -135,9 +135,9 @@
   (map (lambda (name)
          (case (%input-style)
            ((specification)
-            (list name (list 'unquote (list 'specification->package name))))
+            `(specification->package ,name))
            (else
-            (list name (list 'unquote (string->symbol name))))))
+            (string->symbol name))))
        (sort names string-ci<?)))
 
 (define* (maybe-inputs package-inputs #:optional (type 'inputs))
@@ -147,7 +147,7 @@ package definition."
     (()
      '())
     ((package-inputs ...)
-     `((,type (,'quasiquote ,(format-inputs package-inputs)))))))
+     `((,type (list ,@(format-inputs package-inputs)))))))
 
 (define %cran-url "https://cran.r-project.org/web/packages/")
 (define %cran-canonical-url "https://cran.r-project.org/package=")
diff --git a/guix/import/egg.scm b/guix/import/egg.scm
index 107894ddcf..86b54ff56f 100644
--- a/guix/import/egg.scm
+++ b/guix/import/egg.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
 ;;; Copyright © 2021 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2021 Sarah Morgensen <iskarian@mgsn.dev>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -246,12 +247,9 @@ not work."
           (let ((name (prettify-name (extract-name name))))
             ;; Dependencies are sometimes specified as symbols and sometimes
             ;; as strings
-            (list (string-append (if system? "" package-name-prefix)
-                                 name)
-                  (list 'unquote
-                        (string->symbol (string-append
-                                         (if system? "" package-name-prefix)
-                                         name))))))
+            (string->symbol (string-append
+                             (if system? "" package-name-prefix)
+                             name))))
 
         (define egg-propagated-inputs
           (let ((dependencies (assoc-ref egg-content 'dependencies)))
@@ -290,7 +288,7 @@ not work."
              '())
             ((inputs ...)
              (list (list input-type
-                         (list 'quasiquote inputs))))))
+                         `(list ,@inputs))))))
 
         (values
          `(package
@@ -318,7 +316,7 @@ not work."
             (license ,egg-licenses))
          (filter (lambda (name)
                    (not (member name '("srfi-4"))))
-                 (map (compose guix-name->egg-name first)
+                 (map (compose guix-name->egg-name symbol->string)
                       (append egg-propagated-inputs
                               egg-native-inputs)))))))
 
diff --git a/guix/import/elpa.scm b/guix/import/elpa.scm
index c0dc5acf51..0a1c414c25 100644
--- a/guix/import/elpa.scm
+++ b/guix/import/elpa.scm
@@ -350,9 +350,7 @@ type '<elpa-package>'."
                           (elpa-package-inputs pkg))))
 
   (define dependencies
-    (map (lambda (n)
-           (let ((new-n (elpa-name->package-name n)))
-             (list new-n (list 'unquote (string->symbol new-n)))))
+    (map (compose string->symbol elpa-name->package-name)
          dependencies-names))
 
   (define (maybe-inputs input-type inputs)
@@ -360,8 +358,7 @@ type '<elpa-package>'."
       (()
        '())
       ((inputs ...)
-       (list (list input-type
-                   (list 'quasiquote inputs))))))
+       (list (list input-type `(list ,@inputs))))))
 
   (define melpa-source
     (melpa-recipe->origin melpa-recipe))
diff --git a/guix/import/gem.scm b/guix/import/gem.scm
index 418d716be6..0e5bb7e635 100644
--- a/guix/import/gem.scm
+++ b/guix/import/gem.scm
@@ -4,6 +4,7 @@
 ;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
 ;;; Copyright © 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2020 Martin Becze <mjbecze@riseup.net>
+;;; Copyright © 2021 Sarah Morgensen <iskarian@mgsn.dev>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -110,12 +111,7 @@ VERSION, HASH, HOME-PAGE, DESCRIPTION, DEPENDENCIES, and LICENSES."
      ,@(if (null? dependencies)
            '()
            `((propagated-inputs
-              (,'quasiquote
-               ,(map (lambda (name)
-                       `(,name
-                         (,'unquote
-                          ,(string->symbol name))))
-                     dependencies)))))
+              (list ,@(map string->symbol dependencies)))))
      (synopsis ,synopsis)
      (description ,description)
      (home-page ,home-page)
diff --git a/guix/import/hackage.scm b/guix/import/hackage.scm
index f94a1e7087..7c6d9d0a22 100644
--- a/guix/import/hackage.scm
+++ b/guix/import/hackage.scm
@@ -5,6 +5,7 @@
 ;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2019 Robert Vollmert <rob@vllmrt.net>
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
+;;; Copyright © 2021 Sarah Morgensen <iskarian@mgsn.dev>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -265,14 +266,12 @@ the hash of the Cabal file."
      hackage-dependencies))
 
   (define dependencies
-    (map (lambda (name)
-           (list name (list 'unquote (string->symbol name))))
+    (map string->symbol
          (map hackage-name->package-name
               hackage-dependencies)))
 
   (define native-dependencies
-    (map (lambda (name)
-           (list name (list 'unquote (string->symbol name))))
+    (map string->symbol
          (map hackage-name->package-name
               hackage-native-dependencies)))
   
@@ -282,8 +281,8 @@ the hash of the Cabal file."
        '())
       ((inputs ...)
        (list (list input-type
-                   (list 'quasiquote inputs))))))
-  
+                   `(list ,@inputs))))))
+
   (define (maybe-arguments)
     (match (append (if (not include-test-dependencies?)
                        '(#:tests? #f)
diff --git a/guix/import/opam.scm b/guix/import/opam.scm
index a35b01d277..c42b608ec9 100644
--- a/guix/import/opam.scm
+++ b/guix/import/opam.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2018 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2020 Martin Becze <mjbecze@riseup.net>
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
+;;; Copyright © 2021 Sarah Morgensen <iskarian@mgsn.dev>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -269,10 +270,8 @@ path to the repository."
     (map dependency->native-input depends)))
 
 (define (dependency-list->inputs lst)
-  (map
-    (lambda (dependency)
-      (list dependency (list 'unquote (string->symbol dependency))))
-    (ocaml-names->guix-names lst)))
+  (map string->symbol
+       (ocaml-names->guix-names lst)))
 
 (define* (opam-fetch name #:optional (repository (get-opam-repository)))
   (and-let* ((repository repository)
@@ -325,10 +324,10 @@ or #f on failure."
                                           'ocaml-build-system))
                        ,@(if (null? inputs)
                            '()
-                           `((propagated-inputs ,(list 'quasiquote inputs))))
+                           `((propagated-inputs (list ,@inputs))))
                        ,@(if (null? native-inputs)
                            '()
-                           `((native-inputs ,(list 'quasiquote native-inputs))))
+                           `((native-inputs (list ,@native-inputs))))
                        ,@(if (equal? name (guix-name->opam-name (ocaml-name->guix-name name)))
                            '()
                            `((properties
diff --git a/guix/import/print.scm b/guix/import/print.scm
index 0310739b3a..c1739f35e3 100644
--- a/guix/import/print.scm
+++ b/guix/import/print.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017, 2020 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -30,6 +31,14 @@
   #:use-module (ice-9 match)
   #:export (package->code))
 
+(define (redundant-input-labels? inputs)
+  "Return #t if input labels in the INPUTS list are redundant."
+  (every (match-lambda
+           ((label (? package? package) . _)
+            (string=? label (package-name package)))
+           (_ #f))
+         inputs))
+
 ;; FIXME: the quasiquoted arguments field may contain embedded package
 ;; objects, e.g. in #:disallowed-references; they will just be printed with
 ;; their usual #<package ...> representation, not as variable names.
@@ -104,21 +113,33 @@ when evaluated."
          ,@(if (null? patches) '()
                `((patches (search-patches ,@(map basename patches))))))))
 
-  (define (package-lists->code lsts)
-    (list 'quasiquote
-          (map (match-lambda
-                 ((? symbol? s)
-                  (list (symbol->string s) (list 'unquote s)))
-                 ((label pkg . out)
-                  (let ((mod (package-module-name pkg)))
-                    (cons* label
-                           ;; FIXME: using '@ certainly isn't pretty, but it
-                           ;; avoids having to import the individual package
-                           ;; modules.
-                           (list 'unquote
-                                 (list '@ mod (variable-name pkg mod)))
-                           out))))
-               lsts)))
+  (define (inputs->code inputs)
+    (if (redundant-input-labels? inputs)
+        `(list ,@(map (match-lambda    ;no need for input labels ("new style")
+                        ((_ package)
+                         (let ((module (package-module-name package)))
+                           `(@ ,module ,(variable-name package module))))
+                        ((_ package output)
+                         (let ((module (package-module-name package)))
+                           (list 'quasiquote
+                                 (list
+                                  (list 'unquote
+                                        `(@ ,module
+                                            ,(variable-name package module)))
+                                  output)))))
+                      inputs))
+        (list 'quasiquote                  ;preserve input labels (deprecated)
+              (map (match-lambda
+                     ((label pkg . out)
+                      (let ((mod (package-module-name pkg)))
+                        (cons* label
+                               ;; FIXME: using '@ certainly isn't pretty, but it
+                               ;; avoids having to import the individual package
+                               ;; modules.
+                               (list 'unquote
+                                     (list '@ mod (variable-name pkg mod)))
+                               out))))
+                   inputs))))
 
   (let ((name                (package-name package))
         (version             (package-version package))
@@ -160,13 +181,13 @@ when evaluated."
              (outs `((outputs (list ,@outs)))))
          ,@(match native-inputs
              (() '())
-             (pkgs `((native-inputs ,(package-lists->code pkgs)))))
+             (pkgs `((native-inputs ,(inputs->code pkgs)))))
          ,@(match inputs
              (() '())
-             (pkgs `((inputs ,(package-lists->code pkgs)))))
+             (pkgs `((inputs ,(inputs->code pkgs)))))
          ,@(match propagated-inputs
              (() '())
-             (pkgs `((propagated-inputs ,(package-lists->code pkgs)))))
+             (pkgs `((propagated-inputs ,(inputs->code pkgs)))))
          ,@(if (lset= string=? supported-systems %supported-systems)
                '()
                `((supported-systems (list ,@supported-systems))))
diff --git a/guix/import/pypi.scm b/guix/import/pypi.scm
index 6731d50891..f3619dcd9e 100644
--- a/guix/import/pypi.scm
+++ b/guix/import/pypi.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014 David Thompson <davet@gnu.org>
 ;;; Copyright © 2015 Cyril Roelandt <tipecaml@gmail.com>
-;;; Copyright © 2015, 2016, 2017, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2017, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2019 Maxim Cournoyer <maxim.cournoyer@gmail.com>
@@ -183,7 +183,7 @@ the input field."
     (()
      '())
     ((package-inputs ...)
-     `((,input-type (,'quasiquote ,package-inputs))))))
+     `((,input-type (list ,@package-inputs))))))
 
 (define %requirement-name-regexp
   ;; Regexp to match the requirement name in a requirement specification.
@@ -402,15 +402,8 @@ return the unaltered list of upstream dependency names."
     (remove (cut string=? "argparse" <>) deps))
 
   (define (requirement->package-name/sort deps)
-    (sort
-     (map (lambda (input)
-            (let ((guix-name (python->package-name input)))
-              (list guix-name (list 'unquote (string->symbol guix-name)))))
-          deps)
-     (lambda args
-       (match args
-         (((a _ ...) (b _ ...))
-          (string-ci<? a b))))))
+    (map string->symbol
+         (sort (map python->package-name deps) string-ci<?)))
 
   (define process-requirements
     (compose requirement->package-name/sort strip-argparse))
diff --git a/guix/lint.scm b/guix/lint.scm
index ffd3f7007e..d76a2f5e03 100644
--- a/guix/lint.scm
+++ b/guix/lint.scm
@@ -82,6 +82,7 @@
   #:export (check-description-style
             check-inputs-should-be-native
             check-inputs-should-not-be-an-input-at-all
+            check-input-labels
             check-wrapper-inputs
             check-patch-file-names
             check-patch-headers
@@ -503,6 +504,37 @@ of a package, and INPUT-NAMES, a list of package specifications such as
          (package-input-intersection (package-direct-inputs package)
                                      input-names))))
 
+(define (check-input-labels package)
+  "Emit a warning for labels that differ from the corresponding package name."
+  (define (check input-kind package-inputs)
+    (define (warning label name)
+      (make-warning package
+                    (G_ "label '~a' does not match package name '~a'")
+                    (list label name)
+                    #:field input-kind))
+
+    (append-map (match-lambda
+                  (((? string? label) (? package? dependency))
+                   (if (string=? label (package-name dependency))
+                       '()
+                       (list (warning label (package-name dependency)))))
+                  (((? string? label) (? package? dependency) output)
+                   (let ((expected (string-append (package-name dependency)
+                                                  ":" output)))
+                     (if (string=? label expected)
+                         '()
+                         (list (warning label expected)))))
+                  (_
+                   '()))
+                (package-inputs package)))
+
+  (append-map (match-lambda
+                ((kind proc)
+                 (check kind proc)))
+              `((native-inputs ,package-native-inputs)
+                (inputs ,package-inputs)
+                (propagated-inputs ,package-propagated-inputs))))
+
 (define (report-wrap-program-error package wrapper-name)
   "Warn that \"bash-minimal\" is missing from 'inputs', while WRAPPER-NAME
 requires it."
@@ -1752,6 +1784,10 @@ them for PACKAGE."
      (description "Identify inputs that shouldn't be inputs at all")
      (check       check-inputs-should-not-be-an-input-at-all))
    (lint-checker
+     (name        'input-labels)
+     (description "Identify input labels that do not match package names")
+     (check       check-input-labels))
+   (lint-checker
      (name        'wrapper-inputs)
      (description "Make sure 'wrap-program' can finds its interpreter.")
      (check       check-wrapper-inputs))
diff --git a/guix/packages.scm b/guix/packages.scm
index c825f427d8..2349bb4340 100644
--- a/guix/packages.scm
+++ b/guix/packages.scm
@@ -5,6 +5,7 @@
 ;;; Copyright © 2016 Alex Kost <alezost@gmail.com>
 ;;; Copyright © 2017, 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2019 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2021 Chris Marusich <cmmarusich@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -23,6 +24,8 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (guix packages)
+  #:use-module ((guix build utils) #:select (compressor tarball?
+                                                        strip-store-file-name))
   #:use-module (guix utils)
   #:use-module (guix records)
   #:use-module (guix store)
@@ -52,6 +55,7 @@
   #:re-export (%current-system
                %current-target-system
                search-path-specification)         ;for convenience
+  #:re-export-and-replace (delete)                ;used as syntactic keyword
   #:export (content-hash
             content-hash?
             content-hash-algorithm
@@ -105,6 +109,18 @@
             deprecated-package
             package-field-location
 
+            this-package-input
+            this-package-native-input
+
+            lookup-package-input
+            lookup-package-native-input
+            lookup-package-propagated-input
+            lookup-package-direct-input
+
+            prepend                               ;syntactic keyword
+            replace                               ;syntactic keyword
+            modify-inputs
+
             package-direct-sources
             package-transitive-sources
             package-direct-inputs
@@ -273,8 +289,8 @@ as base32.  Otherwise, it must be a bytevector."
              (default '()) (delayed))
 
   (snippet   origin-snippet (default #f))         ; sexp or #f
-  (patch-flags  origin-patch-flags                ; list of strings
-                (default '("-p1")))
+  (patch-flags  origin-patch-flags                ; string-list gexp
+                (default %default-patch-flags))
 
   ;; Patching requires Guile, GNU Patch, and a few more.  These two fields are
   ;; used to specify these dependencies when needed.
@@ -322,6 +338,9 @@ specifications to 'hash'."
 
 (set-record-type-printer! <origin> print-origin)
 
+(define %default-patch-flags
+  #~("-p1"))
+
 (define (origin-actual-file-name origin)
   "Return the file name of ORIGIN, either its 'file-name' field or the file
 name of its URI."
@@ -347,7 +366,7 @@ name of its URI."
   ;; This is the list of system types that are supported.  By default, we
   ;; expect all packages to build successfully here.
   '("x86_64-linux" "i686-linux" "armhf-linux" "aarch64-linux" "mips64el-linux" "i586-gnu"
-    "powerpc64le-linux"))
+    "powerpc64le-linux" "powerpc-linux"))
 
 (define %hurd-systems
   ;; The GNU/Hurd systems for which support is being developed.
@@ -358,8 +377,16 @@ name of its URI."
   ;;
   ;; XXX: MIPS is unavailable in CI:
   ;; <https://lists.gnu.org/archive/html/guix-devel/2017-03/msg00790.html>.
-  (fold delete %supported-systems '("mips64el-linux")))
+  (fold delete %supported-systems '("mips64el-linux" "powerpc-linux")))
 
+(define-inlinable (sanitize-inputs inputs)
+  "Sanitize INPUTS by turning it into a list of name/package tuples if it's
+not already the case."
+  (cond ((null? inputs) inputs)
+        ((and (pair? (car inputs))
+              (string? (caar inputs)))
+         inputs)
+        (else (map add-input-label inputs))))
 
 ;; A package.
 (define-record-type* <package>
@@ -374,11 +401,14 @@ name of its URI."
              (default '()) (thunked))
 
   (inputs package-inputs                  ; input packages or derivations
-          (default '()) (thunked))
+          (default '()) (thunked)
+          (sanitize sanitize-inputs))
   (propagated-inputs package-propagated-inputs    ; same, but propagated
-                     (default '()) (thunked))
+                     (default '()) (thunked)
+                     (sanitize sanitize-inputs))
   (native-inputs package-native-inputs    ; native input packages/derivations
-                 (default '()) (thunked))
+                 (default '()) (thunked)
+                 (sanitize sanitize-inputs))
 
   (outputs package-outputs                ; list of strings
            (default '("out")))
@@ -409,6 +439,24 @@ name of its URI."
                             source-properties->location))
             (innate)))
 
+(define (add-input-label input)
+  "Add an input label to INPUT."
+  (match input
+    ((? package? package)
+     (list (package-name package) package))
+    (((? package? package) output)                ;XXX: ugly?
+     (list (package-name package) package output))
+    ((? gexp-input?)       ;XXX: misplaced because 'native?' field is ignored?
+     (let ((obj    (gexp-input-thing input))
+           (output (gexp-input-output input)))
+       `(,(if (package? obj)
+              (package-name obj)
+              "_")
+         ,obj
+         ,@(if (string=? output "out") '() (list output)))))
+    (x
+     `("_" ,x))))
+
 (set-record-type-printer! <package>
                           (lambda (package port)
                             (let ((loc    (package-location package))
@@ -446,6 +494,7 @@ it has in Guix."
 user interfaces, ignores."
   (package
     (inherit p)
+    (location (package-location p))
     (properties `((hidden? . #t)
                   ,@(package-properties p)))))
 
@@ -469,12 +518,6 @@ object."
 (define (package-field-location package field)
   "Return the source code location of the definition of FIELD for PACKAGE, or
 #f if it could not be determined."
-  (define (goto port line column)
-    (unless (and (= (port-column port) (- column 1))
-                 (= (port-line port) (- line 1)))
-      (unless (eof-object? (read-char port))
-        (goto port line column))))
-
   (match (package-location package)
     (($ <location> file line column)
      (match (search-path %load-path file)
@@ -484,7 +527,7 @@ object."
             ;; In general we want to keep relative file names for modules.
             (call-with-input-file file-found
               (lambda (port)
-                (goto port line column)
+                (go-to-location port line column)
                 (match (read port)
                   (('package inits ...)
                    (let ((field (assoc field inits)))
@@ -507,6 +550,18 @@ object."
         #f)))
     (_ #f)))
 
+(define-syntax-rule (this-package-input name)
+  "Return the input NAME of the package being defined--i.e., an input
+from the ‘inputs’ or ‘propagated-inputs’ field.  Native inputs are not
+considered.  If this input does not exist, return #f instead."
+  (or (lookup-package-input this-package name)
+      (lookup-package-propagated-input this-package name)))
+
+(define-syntax-rule (this-package-native-input name)
+  "Return the native package input NAME of the package being defined--i.e.,
+an input from the ‘native-inputs’ field.  If this native input does not
+exist, return #f instead."
+  (lookup-package-native-input this-package name))
 
 ;; Error conditions.
 
@@ -557,8 +612,12 @@ identifiers.  The result is inferred from the file names of patches."
   (let* ((canonical (module-ref (resolve-interface '(gnu packages base))
                                 'canonical-package))
          (ref       (lambda (module var)
-                      (canonical
-                       (module-ref (resolve-interface module) var)))))
+                      ;; Make sure 'canonical-package' is not influenced by
+                      ;; '%current-target-system' since we're going to use the
+                      ;; native package anyway.
+                      (parameterize ((%current-target-system #f))
+                        (canonical
+                         (module-ref (resolve-interface module) var))))))
     `(("tar"   ,(ref '(gnu packages base) 'tar))
       ("xz"    ,(ref '(gnu packages compression) 'xz))
       ("bzip2" ,(ref '(gnu packages compression) 'bzip2))
@@ -591,7 +650,7 @@ the build code of derivation."
                            #:key
                            inputs
                            (snippet #f)
-                           (flags '("-p1"))
+                           (flags %default-patch-flags)
                            (modules '())
                            (guile-for-build (%guile-for-build))
                            (system (%current-system)))
@@ -615,20 +674,7 @@ specifies modules in scope when evaluating SNIPPET."
           ((package) package)
           (#f        #f)))))
 
-  (define decompression-type
-    (cond ((string-suffix? "gz" source-file-name)  "gzip")
-          ((string-suffix? "Z" source-file-name)  "gzip")
-          ((string-suffix? "bz2" source-file-name) "bzip2")
-          ((string-suffix? "lz" source-file-name)  "lzip")
-          ((string-suffix? "zip" source-file-name) "unzip")
-          (else "xz")))
-
-  (define original-file-name
-    ;; Remove the store prefix plus the slash, hash, and hyphen.
-    (let* ((sans (string-drop source-file-name
-                              (+ (string-length (%store-prefix)) 1)))
-           (dash (string-index sans #\-)))
-      (string-drop sans (+ 1 dash))))
+  (define original-file-name (strip-store-file-name source-file-name))
 
   (define (numeric-extension? file-name)
     ;; Return true if FILE-NAME ends with digits.
@@ -641,11 +687,9 @@ specifies modules in scope when evaluating SNIPPET."
 
   (define (tarxz-name file-name)
     ;; Return a '.tar.xz' file name based on FILE-NAME.
-    (let ((base (cond ((numeric-extension? file-name)
-                       original-file-name)
-                      ((checkout? file-name)
-                       (string-drop-right file-name 9))
-                      (else (file-sans-extension file-name)))))
+    (let ((base (if (numeric-extension? file-name)
+                    original-file-name
+                    (file-sans-extension file-name))))
       (string-append base
                      (if (equal? (file-extension base) "tar")
                          ".xz"
@@ -654,22 +698,27 @@ specifies modules in scope when evaluating SNIPPET."
   (define instantiate-patch
     (match-lambda
       ((? string? patch)                          ;deprecated
-       (interned-file patch #:recursive? #t))
+       (local-file patch #:recursive? #t))
       ((? struct? patch)                          ;origin, local-file, etc.
-       (lower-object patch system))))
-
-  (mlet %store-monad ((tar ->     (lookup-input "tar"))
-                      (xz ->      (lookup-input "xz"))
-                      (patch ->   (lookup-input "patch"))
-                      (locales -> (lookup-input "locales"))
-                      (decomp ->  (lookup-input decompression-type))
-                      (patches    (sequence %store-monad
-                                            (map instantiate-patch patches))))
+       patch)))
+
+  (let ((tar     (lookup-input "tar"))
+        (gzip    (lookup-input "gzip"))
+        (bzip2   (lookup-input "bzip2"))
+        (lzip    (lookup-input "lzip"))
+        (xz      (lookup-input "xz"))
+        (patch   (lookup-input "patch"))
+        (locales (lookup-input "locales"))
+        (comp    (and=> (compressor source-file-name) lookup-input))
+        (patches (map instantiate-patch patches)))
     (define build
       (with-imported-modules '((guix build utils))
         #~(begin
             (use-modules (ice-9 ftw)
+                         (ice-9 match)
+                         (ice-9 regex)
                          (srfi srfi-1)
+                         (srfi srfi-26)
                          (guix build utils))
 
             ;; The --sort option was added to GNU tar in version 1.28, released
@@ -695,66 +744,8 @@ specifies modules in scope when evaluating SNIPPET."
                             (lambda (name)
                               (not (member name '("." "..")))))))
 
-            ;; Encoding/decoding errors shouldn't be silent.
-            (fluid-set! %default-port-conversion-strategy 'error)
-
-            (when #+locales
-              ;; First of all, install a UTF-8 locale so that UTF-8 file names
-              ;; are correctly interpreted.  During bootstrap, LOCALES is #f.
-              (setenv "LOCPATH"
-                      (string-append #+locales "/lib/locale/"
-                                     #+(and locales
-                                            (version-major+minor
-                                             (package-version locales)))))
-              (setlocale LC_ALL "en_US.utf8"))
-
-            (setenv "PATH" (string-append #+xz "/bin" ":"
-                                          #+decomp "/bin"))
-
-            ;; SOURCE may be either a directory or a tarball.
-            (if (file-is-directory? #+source)
-                (let* ((store     (%store-directory))
-                       (len       (+ 1 (string-length store)))
-                       (base      (string-drop #+source len))
-                       (dash      (string-index base #\-))
-                       (directory (string-drop base (+ 1 dash))))
-                  (mkdir directory)
-                  (copy-recursively #+source directory))
-                #+(if (string=? decompression-type "unzip")
-                      #~(invoke "unzip" #+source)
-                      #~(invoke (string-append #+tar "/bin/tar")
-                                "xvf" #+source)))
-
-            (let ((directory (first-file ".")))
-              (format (current-error-port)
-                      "source is under '~a'~%" directory)
-              (chdir directory)
-
-              (for-each apply-patch '#+patches)
-
-              (let ((result #+(if snippet
-                                  #~(let ((module (make-fresh-user-module)))
-                                      (module-use-interfaces!
-                                       module
-                                       (map resolve-interface '#+modules))
-                                      ((@ (system base compile) compile)
-                                       '#+snippet
-                                       #:to 'value
-                                       #:opts %auto-compilation-options
-                                       #:env module))
-                                  #~#t)))
-                ;; Issue a warning unless the result is #t.
-                (unless (eqv? result #t)
-                  (format (current-error-port) "\
-## WARNING: the snippet returned `~s'.  Return values other than #t
-## are deprecated.  Please migrate this package so that its snippet
-## reports errors by raising an exception, and otherwise returns #t.~%"
-                          result))
-                (unless result
-                  (error "snippet returned false")))
-
-              (chdir "..")
-
+            (define (repack directory output)
+              ;; Write to OUTPUT a compressed tarball containing DIRECTORY.
               (unless tar-supports-sort?
                 (call-with-output-file ".file_list"
                   (lambda (port)
@@ -763,22 +754,97 @@ specifies modules in scope when evaluating SNIPPET."
                               (find-files directory
                                           #:directories? #t
                                           #:fail-on-error? #t)))))
-              (apply invoke
-                     (string-append #+tar "/bin/tar")
-                     "cvfa" #$output
+
+              (apply invoke #+(file-append tar "/bin/tar")
+                     "cvfa" output
                      ;; Avoid non-determinism in the archive.  Set the mtime
                      ;; to 1 as is the case in the store (software like gzip
                      ;; behaves differently when it stumbles upon mtime = 0).
                      "--mtime=@1"
-                     "--owner=root:0"
-                     "--group=root:0"
+                     "--owner=root:0" "--group=root:0"
                      (if tar-supports-sort?
-                         `("--sort=name"
-                           ,directory)
+                         `("--sort=name" ,directory)
                          '("--no-recursion"
-                           "--files-from=.file_list")))))))
+                           "--files-from=.file_list"))))
+
+            ;; Encoding/decoding errors shouldn't be silent.
+            (fluid-set! %default-port-conversion-strategy 'error)
 
-    (let ((name (tarxz-name original-file-name)))
+            (when #+locales
+              ;; First of all, install a UTF-8 locale so that UTF-8 file names
+              ;; are correctly interpreted.  During bootstrap, LOCALES is #f.
+              (setenv "LOCPATH"
+                      (string-append #+locales "/lib/locale/"
+                                     #+(and locales
+                                            (version-major+minor
+                                             (package-version locales)))))
+              (setlocale LC_ALL "en_US.utf8"))
+
+            (setenv "PATH"
+                    (string-append #+xz "/bin"
+                                   (if #+comp
+                                       (string-append ":" #+comp "/bin")
+                                       "")))
+
+            (setenv "XZ_DEFAULTS" (string-join (%xz-parallel-args)))
+
+            ;; SOURCE may be either a directory, a tarball or a simple file.
+            (let ((name (strip-store-file-name #+source))
+                  (command (and=> #+comp (cut string-append <> "/bin/"
+                                              (compressor #+source)))))
+              (if (file-is-directory? #+source)
+                  (copy-recursively #+source name)
+                  (cond
+                   ((tarball? #+source)
+                    (invoke (string-append #+tar "/bin/tar") "xvf" #+source))
+                   ((and=> (compressor #+source) (cut string= "unzip" <>))
+                    ;; Note: Referring to the store unzip here (#+unzip)
+                    ;; would introduce a cycle.
+                    (invoke "unzip" #+source))
+                   (else
+                    (copy-file #+source name)
+                    (when command
+                      (invoke command "--decompress" name))))))
+
+            (let* ((file (first-file "."))
+                   (directory (if (file-is-directory? file)
+                                  file
+                                  ".")))
+              (format (current-error-port) "source is at '~a'~%" file)
+
+              (with-directory-excursion directory
+
+                (for-each apply-patch '#+patches)
+
+                #+(if snippet
+                      #~(let ((module (make-fresh-user-module)))
+                          (module-use-interfaces!
+                           module
+                           (map resolve-interface '#+modules))
+                          ((@ (system base compile) compile)
+                           '#+(if (pair? snippet)
+                                  (sexp->gexp snippet)
+                                  snippet)
+                           #:to 'value
+                           #:opts %auto-compilation-options
+                           #:env module))
+                      #~#t))
+
+              ;; If SOURCE is a directory (such as a checkout), return a
+              ;; directory.  Otherwise create a tarball.
+              (cond
+               ((file-is-directory? #+source)
+                (copy-recursively directory #$output
+                                  #:log (%make-void-port "w")))
+               ((not #+comp)
+                (copy-file file #$output))
+               (else
+                (repack directory #$output)))))))
+
+    (let ((name (if (or (checkout? original-file-name)
+                        (not (compressor original-file-name)))
+                    original-file-name
+                    (tarxz-name original-file-name))))
       (gexp->derivation name build
                         #:graft? #f
                         #:system system
@@ -843,6 +909,98 @@ preserved, and only duplicate propagated inputs are removed."
       ((input rest ...)
        (loop rest (cons input result) propagated first? seen)))))
 
+(define (lookup-input inputs name)
+  "Lookup NAME among INPUTS, an input list."
+  ;; Note: Currently INPUTS is assumed to be an input list that contains input
+  ;; labels.  In the future, input labels will be gone and this procedure will
+  ;; check package names.
+  (match (assoc-ref inputs name)
+    ((obj) obj)
+    ((obj _) obj)
+    (#f #f)))
+
+(define (lookup-package-input package name)
+  "Look up NAME among PACKAGE's inputs.  Return it if found, #f otherwise."
+  (lookup-input (package-inputs package) name))
+
+(define (lookup-package-native-input package name)
+  "Look up NAME among PACKAGE's native inputs.  Return it if found, #f
+otherwise."
+  (lookup-input (package-native-inputs package) name))
+
+(define (lookup-package-propagated-input package name)
+  "Look up NAME among PACKAGE's propagated inputs.  Return it if found, #f
+otherwise."
+  (lookup-input (package-propagated-inputs package) name))
+
+(define (lookup-package-direct-input package name)
+  "Look up NAME among PACKAGE's direct inputs.  Return it if found, #f
+otherwise."
+  (lookup-input (package-direct-inputs package) name))
+
+(define (inputs-sans-labels inputs)
+  "Return INPUTS stripped of any input labels."
+  (map (match-lambda
+         ((label obj) obj)
+         ((label obj output) `(,obj ,output)))
+       inputs))
+
+(define (replace-input name replacement inputs)
+  "Replace input NAME by REPLACEMENT within INPUTS."
+  (map (lambda (input)
+         (match input
+           (((? string? label) . _)
+            (if (string=? label name)
+                (match replacement        ;does REPLACEMENT specify an output?
+                  ((_ _) (cons label replacement))
+                  (_     (list label replacement)))
+                input))))
+       inputs))
+
+(define-syntax prepend
+  (lambda (s)
+    (syntax-violation 'prepend
+                      "'prepend' may only be used within 'modify-inputs'"
+                      s)))
+
+(define-syntax replace
+  (lambda (s)
+    (syntax-violation 'replace
+                      "'replace' may only be used within 'modify-inputs'"
+                      s)))
+
+(define-syntax modify-inputs
+  (syntax-rules (delete prepend append replace)
+    "Modify the given package inputs, as returned by 'package-inputs' & co.,
+according to the given clauses.  The example below removes the GMP and ACL
+inputs of Coreutils and adds libcap:
+
+  (modify-inputs (package-inputs coreutils)
+    (delete \"gmp\" \"acl\")
+    (append libcap))
+
+Other types of clauses include 'prepend' and 'replace'."
+    ;; Note: This macro hides the fact that INPUTS, as returned by
+    ;; 'package-inputs' & co., is actually an alist with labels.  Eventually,
+    ;; it will operate on list of inputs without labels.
+    ((_ inputs (delete name) clauses ...)
+     (modify-inputs (alist-delete name inputs)
+                    clauses ...))
+    ((_ inputs (delete names ...) clauses ...)
+     (modify-inputs (fold alist-delete inputs (list names ...))
+                    clauses ...))
+    ((_ inputs (prepend lst ...) clauses ...)
+     (modify-inputs (append (list lst ...) (inputs-sans-labels inputs))
+                    clauses ...))
+    ((_ inputs (append lst ...) clauses ...)
+     (modify-inputs (append (inputs-sans-labels inputs) (list lst ...))
+                    clauses ...))
+    ((_ inputs (replace name replacement) clauses ...)
+     (modify-inputs (replace-input name replacement inputs)
+                    clauses ...))
+    ((_ inputs)
+     inputs)))
+
 (define (package-direct-sources package)
   "Return all source origins associated with PACKAGE; including origins in
 PACKAGE's inputs."
@@ -1165,10 +1323,6 @@ matching package and returns a replacement for that package."
 ;;; Package derivations.
 ;;;
 
-(define %derivation-cache
-  ;; Package to derivation-path mapping.
-  (make-weak-key-hash-table 100))
-
 (define (cache! cache package system thunk)
   "Memoize in CACHE the return values of THUNK as the derivation of PACKAGE on
 SYSTEM."
@@ -1196,56 +1350,51 @@ Return the cached result when available."
             (#f (cache! cache package key thunk))
             (value value)))
          (#f
-          (cache! cache package key thunk)))))
-    ((_ package system body ...)
-     (cached (=> %derivation-cache) package system body ...))))
-
-(define* (expand-input store package input system #:optional cross-system)
-  "Expand INPUT, an input tuple, such that it contains only references to
-derivation paths or store paths.  PACKAGE is only used to provide contextual
-information in exceptions."
-  (define (intern file)
-    ;; Add FILE to the store.  Set the `recursive?' bit to #t, so that
-    ;; file permissions are preserved.
-    (add-to-store store (basename file) #t "sha256" file))
-
-  (define derivation
-    (if cross-system
-        (cut package-cross-derivation store <> cross-system system
-             #:graft? #f)
-        (cut package-derivation store <> system #:graft? #f)))
+          (cache! cache package key thunk)))))))
 
-  (match input
-    (((? string? name) (? package? package))
-     (list name (derivation package)))
-    (((? string? name) (? package? package)
-      (? string? sub-drv))
-     (list name (derivation package)
-           sub-drv))
-    (((? string? name)
-      (and (? string?) (? derivation-path?) drv))
-     (list name drv))
-    (((? string? name)
-      (and (? string?) (? file-exists? file)))
-     ;; Add FILE to the store.  When FILE is in the sub-directory of a
-     ;; store path, it needs to be added anyway, so it can be used as a
-     ;; source.
-     (list name (intern file)))
-    (((? string? name) (? struct? source))
-     ;; 'package-source-derivation' calls 'lower-object', which can throw
-     ;; '&gexp-input-error'.  However '&gexp-input-error' lacks source
-     ;; location info, so we catch and rethrow here (XXX: not optimal
-     ;; performance-wise).
-     (guard (c ((gexp-input-error? c)
-                (raise (condition
-                        (&package-input-error
-                         (package package)
-                         (input   (gexp-error-invalid-input c)))))))
-       (list name (package-source-derivation store source system))))
-    (x
-     (raise (condition (&package-input-error
-                        (package package)
-                        (input   x)))))))
+(define* (expand-input package input system #:key target)
+  "Expand INPUT, an input tuple, to a name/<gexp-input> tuple.  PACKAGE is
+only used to provide contextual information in exceptions."
+  (with-monad %store-monad
+    (match input
+      ;; INPUT doesn't need to be lowered here because it'll be lowered down
+      ;; the road in the gexp that refers to it.  However, packages need to be
+      ;; special-cased to pass #:graft? #f (only the "tip" of the package
+      ;; graph needs to have #:graft? #t).  Lowering them here also allows
+      ;; 'bag->derivation' to delete non-eq? packages that lead to the same
+      ;; derivation.
+      (((? string? name) (? package? package))
+       (mlet %store-monad ((drv (if target
+                                    (package->cross-derivation package
+                                                               target system
+                                                               #:graft? #f)
+                                    (package->derivation package system
+                                                         #:graft? #f))))
+         (return (list name (gexp-input drv #:native? (not target))))))
+      (((? string? name) (? package? package) (? string? output))
+       (mlet %store-monad ((drv (if target
+                                    (package->cross-derivation package
+                                                               target system
+                                                               #:graft? #f)
+                                    (package->derivation package system
+                                                         #:graft? #f))))
+         (return (list name (gexp-input drv output #:native? (not target))))))
+
+      (((? string? name) (? file-like? thing))
+       (return (list name (gexp-input thing #:native? (not target)))))
+      (((? string? name) (? file-like? thing) (? string? output))
+       (return (list name (gexp-input thing output #:native? (not target)))))
+      (((? string? name)
+        (and (? string?) (? file-exists? file)))
+       ;; Add FILE to the store.  When FILE is in the sub-directory of a
+       ;; store path, it needs to be added anyway, so it can be used as a
+       ;; source.
+       (return (list name (gexp-input (local-file file #:recursive? #t)
+                                      #:native? (not target)))))
+      (x
+       (raise (condition (&package-input-error
+                          (package package)
+                          (input   x))))))))
 
 (define %bag-cache
   ;; 'eq?' cache mapping packages to system+target+graft?-dependent bags.
@@ -1293,45 +1442,51 @@ and return it."
                                  (&package-error
                                   (package package))))))))))))
 
-(define %graft-cache
-  ;; 'eq?' cache mapping package objects to a graft corresponding to their
-  ;; replacement package.
-  (make-weak-key-hash-table 200))
+(define (input-graft system)
+  "Return a monadic procedure that, given a package with a graft, returns a
+graft, and #f otherwise."
+  (with-monad %store-monad
+    (match-lambda*
+      (((? package? package) output)
+       (let ((replacement (package-replacement package)))
+         (if replacement
+             ;; XXX: We should use a separate cache instead of abusing the
+             ;; object cache.
+             (mcached (mlet %store-monad ((orig (package->derivation package system
+                                                                     #:graft? #f))
+                                          (new  (package->derivation replacement system
+                                                                     #:graft? #t)))
+                        (return (graft
+                                  (origin orig)
+                                  (origin-output output)
+                                  (replacement new)
+                                  (replacement-output output))))
+                      package 'graft output system)
+             (return #f))))
+      (_
+       (return #f)))))
 
-(define (input-graft store system)
-  "Return a procedure that, given a package with a replacement and an output name,
-returns a graft, and #f otherwise."
-  (match-lambda*
-    (((? package? package) output)
-     (let ((replacement (package-replacement package)))
-       (and replacement
-            (cached (=> %graft-cache) package (cons output system)
-                    (let ((orig (package-derivation store package system
-                                                    #:graft? #f))
-                          (new  (package-derivation store replacement system
-                                                    #:graft? #t)))
-                      (graft
-                        (origin orig)
-                        (origin-output output)
-                        (replacement new)
-                        (replacement-output output)))))))))
-
-(define (input-cross-graft store target system)
+(define (input-cross-graft target system)
   "Same as 'input-graft', but for cross-compilation inputs."
-  (match-lambda*
-    (((? package? package) output)
-     (let ((replacement (package-replacement package)))
-       (and replacement
-            (let ((orig (package-cross-derivation store package target system
-                                                  #:graft? #f))
-                  (new  (package-cross-derivation store replacement
-                                                  target system
-                                                  #:graft? #t)))
-              (graft
-                (origin orig)
-                (origin-output output)
-                (replacement new)
-                (replacement-output output))))))))
+  (with-monad %store-monad
+    (match-lambda*
+      (((? package? package) output)
+       (let ((replacement (package-replacement package)))
+         (if replacement
+             (mlet %store-monad ((orig (package->cross-derivation package
+                                                                  target system
+                                                                  #:graft? #f))
+                                 (new  (package->cross-derivation replacement
+                                                                  target system
+                                                                  #:graft? #t)))
+               (return (graft
+                         (origin orig)
+                         (origin-output output)
+                         (replacement new)
+                         (replacement-output output))))
+             (return #f))))
+      (_
+       (return #f)))))
 
 (define* (fold-bag-dependencies proc seed bag
                                 #:key (native? #t))
@@ -1366,7 +1521,7 @@ dependencies; otherwise, restrict to target dependencies."
       ((head . tail)
        (loop tail result visited)))))
 
-(define* (bag-grafts store bag)
+(define* (bag-grafts bag)
   "Return the list of grafts potentially applicable to BAG.  Potentially
 applicable grafts are collected by looking at direct or indirect dependencies
 of BAG that have a 'replacement'.  Whether a graft is actually applicable
@@ -1375,158 +1530,199 @@ to (see 'graft-derivation'.)"
   (define system (bag-system bag))
   (define target (bag-target bag))
 
-  (define native-grafts
-    (let ((->graft (input-graft store system)))
-      (parameterize ((%current-system system)
-                     (%current-target-system #f))
-        (fold-bag-dependencies (lambda (package output grafts)
-                                 (match (->graft package output)
-                                   (#f    grafts)
-                                   (graft (cons graft grafts))))
-                               '()
-                               bag))))
-
-  (define target-grafts
-    (if target
-        (let ((->graft (input-cross-graft store target system)))
+  (mlet %store-monad
+      ((native-grafts
+        (let ((->graft (input-graft system)))
           (parameterize ((%current-system system)
-                         (%current-target-system target))
+                         (%current-target-system #f))
             (fold-bag-dependencies (lambda (package output grafts)
-                                     (match (->graft package output)
-                                       (#f    grafts)
-                                       (graft (cons graft grafts))))
-                                   '()
-                                   bag
-                                   #:native? #f)))
-        '()))
-
-  ;; We can end up with several identical grafts if we stumble upon packages
-  ;; that are not 'eq?' but map to the same derivation (this can happen when
-  ;; using things like 'package-with-explicit-inputs'.)  Hence the
-  ;; 'delete-duplicates' call.
-  (delete-duplicates
-   (append native-grafts target-grafts)))
-
-(define* (package-grafts store package
-                         #:optional (system (%current-system))
-                         #:key target)
+                                     (mlet %store-monad ((grafts grafts))
+                                       (>>= (->graft package output)
+                                            (match-lambda
+                                              (#f    (return grafts))
+                                              (graft (return (cons graft grafts)))))))
+                                   (return '())
+                                   bag))))
+
+       (target-grafts
+        (if target
+            (let ((->graft (input-cross-graft target system)))
+              (parameterize ((%current-system system)
+                             (%current-target-system target))
+                (fold-bag-dependencies
+                 (lambda (package output grafts)
+                   (mlet %store-monad ((grafts grafts))
+                     (>>= (->graft package output)
+                          (match-lambda
+                            (#f    (return grafts))
+                            (graft (return (cons graft grafts)))))))
+                 (return '())
+                 bag
+                 #:native? #f)))
+            (return '()))))
+
+    ;; We can end up with several identical grafts if we stumble upon packages
+    ;; that are not 'eq?' but map to the same derivation (this can happen when
+    ;; using things like 'package-with-explicit-inputs'.)  Hence the
+    ;; 'delete-duplicates' call.
+    (return (delete-duplicates
+             (append native-grafts target-grafts)))))
+
+(define* (package-grafts* package
+                          #:optional (system (%current-system))
+                          #:key target)
   "Return the list of grafts applicable to PACKAGE as built for SYSTEM and
 TARGET."
   (let* ((package (or (package-replacement package) package))
          (bag     (package->bag package system target)))
-    (bag-grafts store bag)))
-
-(define* (bag->derivation store bag
-                          #:optional context)
+    (bag-grafts bag)))
+
+(define package-grafts
+  (store-lower package-grafts*))
+
+(define-inlinable (derivation=? drv1 drv2)
+  "Return true if DRV1 and DRV2 are equal."
+  (or (eq? drv1 drv2)
+      (string=? (derivation-file-name drv1)
+                (derivation-file-name drv2))))
+
+(define (input=? input1 input2)
+  "Return true if INPUT1 and INPUT2 are equivalent."
+  (match input1
+    ((label1 obj1 . outputs1)
+     (match input2
+       ((label2 obj2 . outputs2)
+        (and (string=? label1 label2)
+             (equal? outputs1 outputs2)
+             (or (and (derivation? obj1) (derivation? obj2)
+                      (derivation=? obj1 obj2))
+                 (equal? obj1 obj2))))))))
+
+(define* (bag->derivation bag #:optional context)
   "Return the derivation to build BAG for SYSTEM.  Optionally, CONTEXT can be
 a package object describing the context in which the call occurs, for improved
 error reporting."
   (if (bag-target bag)
-      (bag->cross-derivation store bag)
-      (let* ((system     (bag-system bag))
-             (inputs     (bag-transitive-inputs bag))
-             (input-drvs (map (cut expand-input store context <> system)
-                              inputs))
-             (paths      (delete-duplicates
-                          (append-map (match-lambda
-                                       ((_ (? package? p) _ ...)
-                                        (package-native-search-paths
-                                         p))
-                                       (_ '()))
-                                      inputs))))
-
-        (apply (bag-build bag)
-               store (bag-name bag) input-drvs
+      (bag->cross-derivation bag)
+      (mlet* %store-monad ((system ->  (bag-system bag))
+                           (inputs ->  (bag-transitive-inputs bag))
+                           (input-drvs (mapm %store-monad
+                                             (cut expand-input context <> system)
+                                             inputs))
+                           (paths ->   (delete-duplicates
+                                        (append-map (match-lambda
+                                                      ((_ (? package? p) _ ...)
+                                                       (package-native-search-paths
+                                                        p))
+                                                      (_ '()))
+                                                    inputs))))
+        ;; It's possible that INPUTS contains packages that are not 'eq?' but
+        ;; that lead to the same derivation.  Delete those duplicates to avoid
+        ;; issues down the road, such as duplicate entries in '%build-inputs'.
+        (apply (bag-build bag) (bag-name bag)
+               (delete-duplicates input-drvs input=?)
                #:search-paths paths
                #:outputs (bag-outputs bag) #:system system
                (bag-arguments bag)))))
 
-(define* (bag->cross-derivation store bag
-                                #:optional context)
+(define* (bag->cross-derivation bag #:optional context)
   "Return the derivation to build BAG, which is actually a cross build.
 Optionally, CONTEXT can be a package object denoting the context of the call.
 This is an internal procedure."
-  (let* ((system      (bag-system bag))
-         (target      (bag-target bag))
-         (host        (bag-transitive-host-inputs bag))
-         (host-drvs   (map (cut expand-input store context <> system target)
-                           host))
-         (target*     (bag-transitive-target-inputs bag))
-         (target-drvs (map (cut expand-input store context <> system)
-                           target*))
-         (build       (bag-transitive-build-inputs bag))
-         (build-drvs  (map (cut expand-input store context <> system)
-                           build))
-         (all         (append build target* host))
-         (paths       (delete-duplicates
-                       (append-map (match-lambda
-                                    ((_ (? package? p) _ ...)
-                                     (package-search-paths p))
-                                    (_ '()))
-                                   all)))
-         (npaths      (delete-duplicates
-                       (append-map (match-lambda
-                                    ((_ (? package? p) _ ...)
-                                     (package-native-search-paths
-                                      p))
-                                    (_ '()))
-                                   all))))
-
-    (apply (bag-build bag)
-           store (bag-name bag)
-           #:native-drvs build-drvs
-           #:target-drvs (append host-drvs target-drvs)
+  (mlet* %store-monad ((system ->   (bag-system bag))
+                       (target ->   (bag-target bag))
+                       (host ->     (bag-transitive-host-inputs bag))
+                       (host-drvs   (mapm %store-monad
+                                          (cut expand-input context <>
+                                               system #:target target)
+                                          host))
+                       (target* ->  (bag-transitive-target-inputs bag))
+                       (target-drvs (mapm %store-monad
+                                          (cut expand-input context <> system)
+                                          target*))
+                       (build ->    (bag-transitive-build-inputs bag))
+                       (build-drvs  (mapm %store-monad
+                                          (cut expand-input context <> system)
+                                          build))
+                       (all ->      (append build target* host))
+                       (paths ->    (delete-duplicates
+                                     (append-map (match-lambda
+                                                   ((_ (? package? p) _ ...)
+                                                    (package-search-paths p))
+                                                   (_ '()))
+                                                 all)))
+                       (npaths ->   (delete-duplicates
+                                     (append-map (match-lambda
+                                                   ((_ (? package? p) _ ...)
+                                                    (package-native-search-paths
+                                                     p))
+                                                   (_ '()))
+                                                 all))))
+
+    (apply (bag-build bag) (bag-name bag)
+           #:build-inputs (delete-duplicates build-drvs input=?)
+           #:host-inputs (delete-duplicates host-drvs input=?)
+           #:target-inputs (delete-duplicates target-drvs input=?)
            #:search-paths paths
            #:native-search-paths npaths
            #:outputs (bag-outputs bag)
            #:system system #:target target
            (bag-arguments bag))))
 
-(define* (package-derivation store package
-                             #:optional (system (%current-system))
-                             #:key (graft? (%graft?)))
+(define bag->derivation*
+  (store-lower bag->derivation))
+
+(define graft-derivation*
+  (store-lift graft-derivation))
+
+(define* (package->derivation package
+                              #:optional (system (%current-system))
+                              #:key (graft? (%graft?)))
   "Return the <derivation> object of PACKAGE for SYSTEM."
 
   ;; Compute the derivation and cache the result.  Caching is important
   ;; because some derivations, such as the implicit inputs of the GNU build
   ;; system, will be queried many, many times in a row.
-  (cached package (cons system graft?)
-          (let* ((bag (package->bag package system #f #:graft? graft?))
-                 (drv (bag->derivation store bag package)))
-            (if graft?
-                (match (bag-grafts store bag)
-                  (()
-                   drv)
-                  (grafts
-                   (let ((guile (package-derivation store (guile-for-grafts)
-                                                    system #:graft? #f)))
-                     ;; TODO: As an optimization, we can simply graft the tip
-                     ;; of the derivation graph since 'graft-derivation'
-                     ;; recurses anyway.
-                     (graft-derivation store drv grafts
-                                       #:system system
-                                       #:guile guile))))
-                drv))))
-
-(define* (package-cross-derivation store package target
-                                   #:optional (system (%current-system))
-                                   #:key (graft? (%graft?)))
+  (mcached (mlet* %store-monad ((bag -> (package->bag package system #f
+                                                      #:graft? graft?))
+                                (drv (bag->derivation bag package)))
+             (if graft?
+                 (>>= (bag-grafts bag)
+                      (match-lambda
+                        (()
+                         (return drv))
+                        (grafts
+                         (mlet %store-monad ((guile (package->derivation
+                                                     (default-guile)
+                                                     system #:graft? #f)))
+                           (graft-derivation* drv grafts
+                                              #:system system
+                                              #:guile guile)))))
+                 (return drv)))
+           package system #f graft?))
+
+(define* (package->cross-derivation package target
+                                    #:optional (system (%current-system))
+                                    #:key (graft? (%graft?)))
   "Cross-build PACKAGE for TARGET (a GNU triplet) from host SYSTEM (a Guix
 system identifying string)."
-  (cached package (list system target graft?)
-          (let* ((bag (package->bag package system target #:graft? graft?))
-                 (drv (bag->derivation store bag package)))
-            (if graft?
-                (match (bag-grafts store bag)
-                  (()
-                   drv)
-                  (grafts
-                   (graft-derivation store drv grafts
-                                     #:system system
-                                     #:guile
-                                     (package-derivation store (guile-for-grafts)
-                                                         system #:graft? #f))))
-                drv))))
+  (mcached (mlet* %store-monad ((bag -> (package->bag package system target
+                                                      #:graft? graft?))
+                                (drv (bag->derivation bag package)))
+             (if graft?
+                 (>>= (bag-grafts bag)
+                      (match-lambda
+                        (()
+                         (return drv))
+                        (grafts
+                         (mlet %store-monad ((guile (package->derivation
+                                                     (default-guile)
+                                                     system #:graft? #f)))
+                           (graft-derivation* drv grafts
+                                              #:system system
+                                              #:guile guile)))))
+                 (return drv)))
+           package system target graft?))
 
 (define* (package-output store package
                          #:optional (output "out") (system (%current-system)))
@@ -1574,11 +1770,11 @@ unless you know what you are doing."
                   out)
               store))))
 
-(define package->derivation
-  (store-lift package-derivation))
+(define package-derivation
+  (store-lower package->derivation))
 
-(define package->cross-derivation
-  (store-lift package-cross-derivation))
+(define package-cross-derivation
+  (store-lower package->cross-derivation))
 
 (define-gexp-compiler (package-compiler (package <package>) system target)
   ;; Compile PACKAGE to a derivation for SYSTEM, optionally cross-compiled for
@@ -1598,7 +1794,7 @@ unless you know what you are doing."
              (content-hash-value hash)
              name #:system system))
     (($ <origin> uri method hash name (= force (patches ...)) snippet
-        (flags ...) inputs (modules ...) guile-for-build)
+                 flags inputs (modules ...) guile-for-build)
      ;; Patches and/or a snippet.
      (mlet %store-monad ((source (method uri
                                          (content-hash-algorithm hash)
diff --git a/guix/profiles.scm b/guix/profiles.scm
index 2486f91d09..9494684228 100644
--- a/guix/profiles.scm
+++ b/guix/profiles.scm
@@ -1663,104 +1663,6 @@ the entries in MANIFEST."
                     `((type . profile-hook)
                       (hook . manual-database))))
 
-(define (texlive-configuration manifest)
-  "Return a derivation that builds a TeXlive configuration for the entries in
-MANIFEST."
-  (define entry->texlive-input
-    (match-lambda
-      (($ <manifest-entry> name version output thing deps)
-       (if (string-prefix? "texlive-" name)
-           (cons (gexp-input thing output)
-                 (append-map entry->texlive-input deps))
-           '()))))
-  (define texlive-bin
-    (module-ref (resolve-interface '(gnu packages tex)) 'texlive-bin))
-  (define coreutils
-    (module-ref (resolve-interface '(gnu packages base)) 'coreutils))
-  (define sed
-    (module-ref (resolve-interface '(gnu packages base)) 'sed))
-  (define updmap.cfg
-    (module-ref (resolve-interface '(gnu packages tex))
-                'texlive-default-updmap.cfg))
-  (define build
-    (with-imported-modules '((guix build utils)
-                             (guix build union))
-      #~(begin
-          (use-modules (guix build utils)
-                       (guix build union)
-                       (ice-9 popen))
-
-          ;; Build a modifiable union of all texlive inputs.  We do this so
-          ;; that TeX live can resolve the parent and grandparent directories
-          ;; correctly.  There might be a more elegant way to accomplish this.
-          (union-build #$output
-                       '#$(append-map entry->texlive-input
-                                      (manifest-entries manifest))
-                       #:create-all-directories? #t
-                       #:log-port (%make-void-port "w"))
-          (let ((texmf.cnf (string-append
-                            #$output
-                            "/share/texmf-dist/web2c/texmf.cnf")))
-            (when (file-exists? texmf.cnf)
-              (substitute* texmf.cnf
-                (("^TEXMFROOT = .*")
-                 (string-append "TEXMFROOT = " #$output "/share\n"))
-                (("^TEXMF = .*")
-                 "TEXMF = $TEXMFROOT/share/texmf-dist\n"))
-
-              ;; XXX: This is annoying, but it's necessary because texlive-bin
-              ;; does not provide wrapped executables.
-              (setenv "PATH"
-                      (string-append #$(file-append coreutils "/bin")
-                                     ":"
-                                     #$(file-append sed "/bin")))
-              (setenv "PERL5LIB" #$(file-append texlive-bin "/share/tlpkg"))
-              (setenv "TEXMF" (string-append #$output "/share/texmf-dist"))
-
-              ;; Remove invalid maps from config file.
-              (let* ((web2c (string-append #$output "/share/texmf-config/web2c/"))
-                     (maproot (string-append #$output "/share/texmf-dist/fonts/map/"))
-                     (updmap.cfg (string-append web2c "updmap.cfg")))
-                (mkdir-p web2c)
-
-                ;; Some profiles may already have this file, which prevents us
-                ;; from copying it.  Since we need to generate it from scratch
-                ;; anyway, we delete it here.
-                (when (file-exists? updmap.cfg)
-                  (delete-file updmap.cfg))
-                (copy-file #$updmap.cfg updmap.cfg)
-                (make-file-writable updmap.cfg)
-                (let* ((port (open-pipe* OPEN_WRITE
-                                         #$(file-append texlive-bin "/bin/updmap-sys")
-                                         "--syncwithtrees"
-                                         "--nohash"
-                                         "--force"
-                                         (string-append "--cnffile=" web2c "updmap.cfg"))))
-                  (display "Y\n" port)
-                  (when (not (zero? (status:exit-val (close-pipe port))))
-                    (error "failed to filter updmap.cfg")))
-
-                ;; Generate font maps.
-                (invoke #$(file-append texlive-bin "/bin/updmap-sys")
-                        (string-append "--cnffile=" web2c "updmap.cfg")
-                        (string-append "--dvipdfmxoutputdir="
-                                       maproot "updmap/dvipdfmx/")
-                        (string-append "--dvipsoutputdir="
-                                       maproot "updmap/dvips/")
-                        (string-append "--pdftexoutputdir="
-                                       maproot "updmap/pdftex/")))))
-          #t)))
-
-  (mlet %store-monad ((texlive-base (manifest-lookup-package manifest "texlive-base")))
-    (if texlive-base
-        (gexp->derivation "texlive-configuration" build
-                          #:substitutable? #f
-                          #:local-build? #t
-                          #:properties
-                          `((type . profile-hook)
-                            (hook . texlive-configuration)))
-        (return #f))))
-
 (define %default-profile-hooks
   ;; This is the list of derivation-returning procedures that are called by
   ;; default when making a non-empty profile.
@@ -1773,7 +1675,6 @@ MANIFEST."
         glib-schemas
         gtk-icon-themes
         gtk-im-modules
-        texlive-configuration
         xdg-desktop-database
         xdg-mime-database))
 
diff --git a/guix/records.scm b/guix/records.scm
index 3d54a51956..ed94c83dac 100644
--- a/guix/records.scm
+++ b/guix/records.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Mark H Weaver <mhw@netris.org>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -120,7 +120,8 @@ context of the definition of a thunked field."
     "Make the syntactic constructor NAME for TYPE, that calls CTOR, and
 expects all of EXPECTED fields to be initialized.  DEFAULTS is the list of
 FIELD/DEFAULT-VALUE tuples, THUNKED is the list of identifiers of thunked
-fields, and DELAYED is the list of identifiers of delayed fields.
+fields, DELAYED is the list of identifiers of delayed fields, and SANITIZERS
+is the list of FIELD/SANITIZER tuples.
 
 ABI-COOKIE is the cookie (an integer) against which to check the run-time ABI
 of TYPE matches the expansion-time ABI."
@@ -130,6 +131,7 @@ of TYPE matches the expansion-time ABI."
         #:this-identifier this-identifier
         #:delayed delayed
         #:innate innate
+        #:sanitizers sanitizers
         #:defaults defaults)
      (define-syntax name
        (lambda (s)
@@ -169,19 +171,30 @@ of TYPE matches the expansion-time ABI."
          (define (innate-field? f)
            (memq (syntax->datum f) 'innate))
 
+         (define field-sanitizer
+           (let ((lst (map (match-lambda
+                             ((f p)
+                              (list (syntax->datum f) p)))
+                           #'sanitizers)))
+             (lambda (f)
+               (or (and=> (assoc-ref lst (syntax->datum f)) car)
+                   #'(lambda (x) x)))))
+
          (define (wrap-field-value f value)
-           (cond ((thunked-field? f)
-                  #`(lambda (x)
-                      (syntax-parameterize ((#,this-identifier
-                                             (lambda (s)
-                                               (syntax-case s ()
-                                                 (id
-                                                  (identifier? #'id)
-                                                  #'x)))))
-                        #,value)))
-                 ((delayed-field? f)
-                  #`(delay #,value))
-                 (else value)))
+           (let* ((sanitizer (field-sanitizer f))
+                  (value     #`(#,sanitizer #,value)))
+             (cond ((thunked-field? f)
+                    #`(lambda (x)
+                        (syntax-parameterize ((#,this-identifier
+                                               (lambda (s)
+                                                 (syntax-case s ()
+                                                   (id
+                                                    (identifier? #'id)
+                                                    #'x)))))
+                          #,value)))
+                   ((delayed-field? f)
+                    #`(delay #,value))
+                   (else value))))
 
          (define default-values
            ;; List of symbol/value tuples.
@@ -291,6 +304,19 @@ can access the record it belongs to via the 'this-thing' identifier.
 A field can also be marked as \"delayed\" instead of \"thunked\", in which
 case its value is effectively wrapped in a (delay …) form.
 
+A field can also have an associated \"sanitizer\", which is a procedure that
+takes a user-supplied field value and returns a \"sanitized\" value for the
+field:
+
+  (define-record-type* <thing> thing make-thing
+    thing?
+    this-thing
+    (name  thing-name
+           (sanitize (lambda (value)
+                       (cond ((string? value) value)
+                             ((symbol? value) (symbol->string value))
+                             (else (throw 'bad! value)))))))
+
 It is possible to copy an object 'x' created with 'thing' like this:
 
   (thing (inherit x) (name \"bar\"))
@@ -307,6 +333,14 @@ inherited."
          (field-default-value #'(field properties ...)))
         (_ #f)))
 
+    (define (field-sanitizer s)
+      (syntax-case s (sanitize)
+        ((field (sanitize proc) _ ...)
+         (list #'field #'proc))
+        ((field _ properties ...)
+         (field-sanitizer #'(field properties ...)))
+        (_ #f)))
+
     (define-field-property-predicate delayed-field? delayed)
     (define-field-property-predicate thunked-field? thunked)
     (define-field-property-predicate innate-field? innate)
@@ -376,6 +410,8 @@ inherited."
               (innate     (filter-map innate-field? field-spec))
               (defaults   (filter-map field-default-value
                                       #'((field properties ...) ...)))
+              (sanitizers (filter-map field-sanitizer
+                                        #'((field properties ...) ...)))
               (cookie     (compute-abi-cookie field-spec)))
          (with-syntax (((field-spec* ...)
                         (map field-spec->srfi-9 field-spec))
@@ -421,6 +457,7 @@ of a record instantiation"
                                            #:this-identifier #'this-identifier
                                            #:delayed #,delayed
                                            #:innate #,innate
+                                           #:sanitizers #,sanitizers
                                            #:defaults #,defaults)))))
       ((_ type syntactic-ctor ctor pred
           (field get properties ...) ...)
diff --git a/guix/scripts/pack.scm b/guix/scripts/pack.scm
index 9e1f270dfb..38bc021665 100644
--- a/guix/scripts/pack.scm
+++ b/guix/scripts/pack.scm
@@ -5,6 +5,7 @@
 ;;; Copyright © 2018 Chris Marusich <cmmarusich@gmail.com>
 ;;; Copyright © 2018 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2020 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2020 Eric Bavier <bavier@posteo.net>
 ;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
@@ -27,6 +28,7 @@
   #:use-module (guix scripts)
   #:use-module (guix ui)
   #:use-module (guix gexp)
+  #:use-module ((guix build utils) #:select (%xz-parallel-args))
   #:use-module (guix utils)
   #:use-module (guix store)
   #:use-module ((guix status) #:select (with-status-verbosity))
@@ -79,29 +81,34 @@
   compressor?
   (name       compressor-name)      ;string (e.g., "gzip")
   (extension  compressor-extension) ;string (e.g., ".lz")
-  (command    compressor-command))  ;gexp (e.g., #~("/gnu/store/…/gzip" "-9n"))
+  (command    compressor-command))  ;gexp (e.g., #~(list "/gnu/store/…/gzip"
+                                    ;                    "-9n" ))
 
 (define %compressors
   ;; Available compression tools.
   (list (compressor "gzip"  ".gz"
-                    #~(#+(file-append gzip "/bin/gzip") "-9n"))
+                    #~(list #+(file-append gzip "/bin/gzip") "-9n"))
         (compressor "lzip"  ".lz"
-                    #~(#+(file-append lzip "/bin/lzip") "-9"))
+                    #~(list #+(file-append lzip "/bin/lzip") "-9"))
         (compressor "xz"    ".xz"
-                    #~(#+(file-append xz "/bin/xz") "-e"))
+                    #~(append (list #+(file-append xz "/bin/xz")
+                                    "-e")
+                              (%xz-parallel-args)))
         (compressor "bzip2" ".bz2"
-                    #~(#+(file-append bzip2 "/bin/bzip2") "-9"))
+                    #~(list #+(file-append bzip2 "/bin/bzip2") "-9"))
         (compressor "zstd" ".zst"
                     ;; The default level 3 compresses better than gzip in a
                     ;; fraction of the time, while the highest level 19
                     ;; (de)compresses more slowly and worse than xz.
-                    #~(#+(file-append zstd "/bin/zstd") "-3"))
+                    #~(list #+(file-append zstd "/bin/zstd") "-3"))
         (compressor "none" "" #f)))
 
 ;; This one is only for use in this module, so don't put it in %compressors.
 (define bootstrap-xz
   (compressor "bootstrap-xz" ".xz"
-              #~(#+(file-append %bootstrap-coreutils&co "/bin/xz") "-e")))
+              #~(append (list #+(file-append %bootstrap-coreutils&co "/bin/xz")
+                              "-e")
+                        (%xz-parallel-args))))
 
 (define (lookup-compressor name)
   "Return the compressor object called NAME.  Error out if it could not be
@@ -298,7 +305,7 @@ its source property."
           (apply invoke tar "-cvf" #$output "."
                  (tar-base-options
                   #:tar tar
-                  #:compressor '#+(and=> compressor compressor-command)))))))
+                  #:compressor #+(and=> compressor compressor-command)))))))
 
 (define* (self-contained-tarball name profile
                                  #:key target
@@ -574,11 +581,13 @@ the image."
                                ,@(source-module-closure
                                   `((guix docker)
                                     (guix build store-copy)
+                                    (guix build utils) ;for %xz-parallel-args
                                     (guix profiles)
                                     (guix search-paths))
                                   #:select? not-config?))
         #~(begin
             (use-modules (guix docker) (guix build store-copy)
+                         (guix build utils)
                          (guix profiles) (guix search-paths)
                          (srfi srfi-1) (srfi srfi-19)
                          (ice-9 match))
@@ -625,7 +634,7 @@ the image."
                                        #~(list (string-append #$profile "/"
                                                               #$entry-point)))
                                 #:extra-files directives
-                                #:compressor '#+(compressor-command compressor)
+                                #:compressor #+(compressor-command compressor)
                                 #:creation-time (make-time time-utc 0 1))))))
 
   (gexp->derivation (string-append name ".tar"
@@ -804,7 +813,7 @@ Section: misc
             (apply invoke tar
                    `(,@(tar-base-options
                         #:tar tar
-                        #:compressor '#+(and=> compressor compressor-command))
+                        #:compressor #+(and=> compressor compressor-command))
                      "-cvf" ,control-tarball-file-name
                      "control"
                      ,@(if postinst-file '("postinst") '())
diff --git a/guix/scripts/style.scm b/guix/scripts/style.scm
new file mode 100644
index 0000000000..3c100197a7
--- /dev/null
+++ b/guix/scripts/style.scm
@@ -0,0 +1,527 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;;
+;;; This script updates package definitions so they use the "simplified" style
+;;; for input lists, as in:
+;;;
+;;;  (package
+;;;    ;; ...
+;;;    (inputs (list foo bar baz)))
+;;;
+;;; Code:
+
+(define-module (guix scripts style)
+  #:autoload   (gnu packages) (specification->package fold-packages)
+  #:use-module (guix scripts)
+  #:use-module ((guix scripts build) #:select (%standard-build-options))
+  #:use-module (guix combinators)
+  #:use-module (guix ui)
+  #:use-module (guix packages)
+  #:use-module (guix utils)
+  #:use-module (guix i18n)
+  #:use-module (guix diagnostics)
+  #:use-module (ice-9 control)
+  #:use-module (ice-9 match)
+  #:use-module (ice-9 rdelim)
+  #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-9)
+  #:use-module (srfi srfi-26)
+  #:use-module (srfi srfi-37)
+  #:export (guix-style))
+
+
+;;;
+;;; Comment-preserving reader.
+;;;
+
+;; A comment.
+(define-record-type <comment>
+  (comment str margin?)
+  comment?
+  (str     comment->string)
+  (margin? comment-margin?))
+
+(define (read-with-comments port)
+  "Like 'read', but include <comment> objects when they're encountered."
+  ;; Note: Instead of implementing this functionality in 'read' proper, which
+  ;; is the best approach long-term, this code is a later on top of 'read',
+  ;; such that we don't have to rely on a specific Guile version.
+  (let loop ((blank-line? #t)
+             (return (const 'unbalanced)))
+    (match (read-char port)
+      ((? eof-object? eof)
+       eof)                                       ;oops!
+      (chr
+       (cond ((eqv? chr #\newline)
+              (loop #t return))
+             ((char-set-contains? char-set:whitespace chr)
+              (loop blank-line? return))
+             ((memv chr '(#\( #\[))
+              (let/ec return
+                (let liip ((lst '()))
+                  (liip (cons (loop (match lst
+                                      (((? comment?) . _) #t)
+                                      (_ #f))
+                                    (lambda ()
+                                      (return (reverse lst))))
+                              lst)))))
+             ((memv chr '(#\) #\]))
+              (return))
+             ((eq? chr #\')
+              (list 'quote (loop #f return)))
+             ((eq? chr #\`)
+              (list 'quasiquote (loop #f return)))
+             ((eq? chr #\,)
+              (list (match (peek-char port)
+                      (#\@
+                       (read-char port)
+                       'unquote-splicing)
+                      (_
+                       'unquote))
+                    (loop #f return)))
+             ((eqv? chr #\;)
+              (unread-char chr port)
+              (comment (read-line port 'concat)
+                       (not blank-line?)))
+             (else
+              (unread-char chr port)
+              (read port)))))))
+
+
+;;;
+;;; Comment-preserving pretty-printer.
+;;;
+
+(define* (pretty-print-with-comments port obj
+                                     #:key
+                                     (indent 0)
+                                     (max-width 78)
+                                     (long-list 5))
+  (let loop ((indent indent)
+             (column indent)
+             (delimited? #t)                  ;true if comes after a delimiter
+             (obj obj))
+    (match obj
+      ((? comment? comment)
+       (if (comment-margin? comment)
+           (begin
+             (display " " port)
+             (display (comment->string comment) port))
+           (begin
+             ;; When already at the beginning of a line, for example because
+             ;; COMMENT follows a margin comment, no need to emit a newline.
+             (unless (= column indent)
+               (newline port)
+               (display (make-string indent #\space) port))
+             (display (comment->string comment) port)))
+       (display (make-string indent #\space) port)
+       indent)
+      (('quote lst)
+       (unless delimited? (display " " port))
+       (display "'" port)
+       (loop indent (+ column (if delimited? 1 2)) #t lst))
+      (('quasiquote lst)
+       (unless delimited? (display " " port))
+       (display "`" port)
+       (loop indent (+ column (if delimited? 1 2)) #t lst))
+      (('unquote lst)
+       (unless delimited? (display " " port))
+       (display "," port)
+       (loop indent (+ column (if delimited? 1 2)) #t lst))
+      (('modify-inputs inputs clauses ...)
+       ;; Special-case 'modify-inputs' to have one clause per line and custom
+       ;; indentation.
+       (let ((head "(modify-inputs "))
+         (display head port)
+         (loop (+ indent 4)
+               (+ column (string-length head))
+               #t
+               inputs)
+         (let* ((indent (+ indent 2))
+                (column (fold (lambda (clause column)
+                                (newline port)
+                                (display (make-string indent #\space)
+                                         port)
+                                (loop indent indent #t clause))
+                              indent
+                              clauses)))
+           (display ")" port)
+           (+ column 1))))
+      ((head tail ...)
+       (unless delimited? (display " " port))
+       (display "(" port)
+       (let* ((new-column (loop indent (+ 1 column) #t head))
+              (indent (+ indent (- new-column column)))
+              (long?  (> (length tail) long-list)))
+         (define column
+           (fold2 (lambda (item column first?)
+                    (define newline?
+                      ;; Insert a newline if ITEM is itself a list, or if TAIL
+                      ;; is long, but only if ITEM is not the first item.
+                      (and (or (pair? item) long?)
+                           (not first?) (not (comment? item))))
+
+                    (when newline?
+                      (newline port)
+                      (display (make-string indent #\space) port))
+                    (let ((column (if newline? indent column)))
+                      (values (loop indent
+                                    column
+                                    (= column indent)
+                                    item)
+                              (comment? item))))
+                  (+ 1 new-column)
+                  #t                              ;first
+                  tail))
+         (display ")" port)
+         (+ column 1)))
+      (_
+       (let* ((str (object->string obj))
+              (len (string-length str)))
+         (if (> (+ column 1 len) max-width)
+             (begin
+               (newline port)
+               (display (make-string indent #\space) port)
+               (display str port)
+               (+ indent len))
+             (begin
+               (unless delimited? (display " " port))
+               (display str port)
+               (+ column (if delimited? 1 2) len))))))))
+
+(define (object->string* obj indent)
+  (call-with-output-string
+    (lambda (port)
+      (pretty-print-with-comments port obj
+                                  #:indent indent))))
+
+
+;;;
+;;; Simplifying input expressions.
+;;;
+
+(define (label-matches? label name)
+  "Return true if LABEL matches NAME, a package name."
+  (or (string=? label name)
+      (and (string-prefix? "python-" label)
+           (string-prefix? "python2-" name)
+           (string=? (string-drop label (string-length "python-"))
+                     (string-drop name (string-length "python2-"))))))
+
+(define* (simplify-inputs location package str inputs
+                          #:key (label-matches? label-matches?))
+  "Simplify the inputs field of PACKAGE (a string) at LOCATION; its current
+value is INPUTS the corresponding source code is STR.  Return a string to
+replace STR."
+  (define (simplify-input-expression return)
+    (match-lambda
+      ((label ('unquote symbol)) symbol)
+      ((label ('unquote symbol) output)
+       (list 'quasiquote
+             (list (list 'unquote symbol) output)))
+      (_
+       ;; Expression doesn't look like a simple input.
+       (warning location (G_ "~a: complex expression, \
+bailing out~%")
+                package)
+       (return str))))
+
+  (define (simplify-input exp input return)
+    (define package* package)
+
+    (match input
+      ((or ((? string? label) (? package? package))
+           ((? string? label) (? package? package)
+            (? string?)))
+       ;; If LABEL doesn't match PACKAGE's name, then simplifying would incur
+       ;; a rebuild, and perhaps it would break build-side code relying on
+       ;; this specific label.
+       (if (label-matches? label (package-name package))
+           ((simplify-input-expression return) exp)
+           (begin
+             (warning location (G_ "~a: input label \
+'~a' does not match package name, bailing out~%")
+                      package* label)
+             (return str))))
+      (_
+       (warning location (G_ "~a: non-trivial input, \
+bailing out~%")
+                package*)
+       (return str))))
+
+  (define (simplify-expressions exp inputs return)
+    ;; Simplify the expressions in EXP, which correspond to INPUTS, and return
+    ;; a list of expressions.  Call RETURN with a string when bailing out.
+    (let loop ((result '())
+               (exp exp)
+               (inputs inputs))
+      (match exp
+        (((? comment? head) . rest)
+         (loop (cons head result) rest inputs))
+        ((head . rest)
+         (match inputs
+           ((input . inputs)
+            ;; HEAD (an sexp) and INPUT (an input tuple) are correlated.
+            (loop (cons (simplify-input head input return) result)
+                  rest inputs))
+           (()
+            ;; If EXP and INPUTS have a different length, that
+            ;; means EXP is a non-trivial input list, for example
+            ;; with input-splicing, conditionals, etc.
+            (warning location (G_ "~a: input expression is too short~%")
+                     package)
+            (return str))))
+        (()
+         ;; It's possible for EXP to contain fewer elements than INPUTS, for
+         ;; example in the case of input splicing.  No bailout here.  (XXX)
+         (reverse result)))))
+
+  (define inputs-exp
+    (call-with-input-string str read-with-comments))
+
+  (match inputs-exp
+    (('list _ ...)                                ;already done
+     str)
+    (('modify-inputs _ ...)                       ;already done
+     str)
+    (('quasiquote                                 ;prepending inputs
+      (exp ...
+           ('unquote-splicing
+            ((and symbol (or 'package-inputs 'package-native-inputs
+                             'package-propagated-inputs))
+             arg))))
+     (let/ec return
+       (object->string*
+        (let ((things (simplify-expressions exp inputs return)))
+          `(modify-inputs (,symbol ,arg)
+                          (prepend ,@things)))
+        (location-column location))))
+    (('quasiquote                                 ;replacing an input
+      ((and exp ((? string? to-delete) ('unquote replacement)))
+       ('unquote-splicing
+        ('alist-delete (? string? to-delete)
+                       ((and symbol
+                             (or 'package-inputs 'package-native-inputs
+                                 'package-propagated-inputs))
+                        arg)))))
+     (let/ec return
+       (object->string*
+        (let ((things (simplify-expressions (list exp)
+                                            (list (car inputs))
+                                            return)))
+          `(modify-inputs (,symbol ,arg)
+                          (replace ,to-delete ,replacement)))
+        (location-column location))))
+
+    (('quasiquote                                 ;removing an input
+      (exp ...
+           ('unquote-splicing
+            ('alist-delete (? string? to-delete)
+                           ((and symbol
+                                 (or 'package-inputs 'package-native-inputs
+                                     'package-propagated-inputs))
+                            arg)))))
+     (let/ec return
+       (object->string*
+        (let ((things (simplify-expressions exp inputs return)))
+          `(modify-inputs (,symbol ,arg)
+                          (delete ,to-delete)
+                          (prepend ,@things)))
+        (location-column location))))
+    (('fold 'alist-delete                         ;removing several inputs
+            ((and symbol
+                  (or 'package-inputs 'package-native-inputs
+                      'package-propagated-inputs))
+             arg)
+            ('quote ((? string? to-delete) ...)))
+     (object->string*
+      `(modify-inputs (,symbol ,arg)
+                      (delete ,@to-delete))
+      (location-column location)))
+    (('quasiquote                    ;removing several inputs and adding others
+      (exp ...
+           ('unquote-splicing
+            ('fold 'alist-delete
+                   ((and symbol
+                         (or 'package-inputs 'package-native-inputs
+                             'package-propagated-inputs))
+                    arg)
+                   ('quote ((? string? to-delete) ...))))))
+     (let/ec return
+       (object->string*
+        (let ((things (simplify-expressions exp inputs return)))
+          `(modify-inputs (,symbol ,arg)
+                          (delete ,@to-delete)
+                          (prepend ,@things)))
+        (location-column location))))
+    (('quasiquote (exp ...))
+     (let/ec return
+       (object->string*
+        `(list ,@(simplify-expressions exp inputs return))
+        (location-column location))))
+    (_
+     (warning location (G_ "~a: unsupported input style, \
+bailing out~%")
+              package)
+     str)))
+
+(define* (simplify-package-inputs package
+                                  #:key (policy 'silent))
+  "Edit the source code of PACKAGE to simplify its inputs field if needed.
+POLICY is a symbol that defines whether to simplify inputs; it can one of
+'silent (change only if the resulting derivation is the same), 'safe (change
+only if semantics are known to be unaffected), and 'always (fearlessly
+simplify inputs!)."
+  (for-each (lambda (field-name field)
+              (match (field package)
+                (()
+                 #f)
+                (inputs
+                 (match (package-field-location package field-name)
+                   (#f
+                    ;; If the location of FIELD-NAME is not found, it may be
+                    ;; that PACKAGE inherits from another package.
+                    #f)
+                   (location
+                    (edit-expression
+                     (location->source-properties location)
+                     (lambda (str)
+                       (define matches?
+                         (match policy
+                           ('silent
+                            ;; Simplify inputs only when the label matches
+                            ;; perfectly, such that the resulting derivation
+                            ;; is unchanged.
+                            label-matches?)
+                           ('safe
+                            ;; If PACKAGE has no arguments, labels are known
+                            ;; to have no effect: this is a "safe" change, but
+                            ;; it may change the derivation.
+                            (if (null? (package-arguments package))
+                                (const #t)
+                                label-matches?))
+                           ('always
+                            ;; Assume it's gonna be alright.
+                            (const #f))))
+
+                       (simplify-inputs location
+                                        (package-name package)
+                                        str inputs
+                                        #:label-matches? matches?))))))))
+            '(inputs native-inputs propagated-inputs)
+            (list package-inputs package-native-inputs
+                  package-propagated-inputs)))
+
+(define (package-location<? p1 p2)
+  "Return true if P1's location is \"before\" P2's."
+  (let ((loc1 (package-location p1))
+        (loc2 (package-location p2)))
+    (and loc1 loc2
+         (if (string=? (location-file loc1) (location-file loc2))
+             (< (location-line loc1) (location-line loc2))
+             (string<? (location-file loc1) (location-file loc2))))))
+
+
+;;;
+;;; Options.
+;;;
+
+(define %options
+  ;; Specification of the command-line options.
+  (list (find (lambda (option)
+                (member "load-path" (option-names option)))
+              %standard-build-options)
+
+        (option '(#\e "expression") #t #f
+                (lambda (opt name arg result)
+                  (alist-cons 'expression arg result)))
+        (option '("input-simplification") #t #f
+                (lambda (opt name arg result)
+                  (let ((symbol (string->symbol arg)))
+                    (unless (memq symbol '(silent safe always))
+                      (leave (G_ "~a: invalid input simplification policy~%")
+                             arg))
+                    (alist-cons 'input-simplification-policy symbol
+                                result))))
+
+        (option '(#\h "help") #f #f
+                (lambda args
+                  (show-help)
+                  (exit 0)))
+        (option '(#\V "version") #f #f
+                (lambda args
+                  (show-version-and-exit "guix style")))))
+
+(define (show-help)
+  (display (G_ "Usage: guix style [OPTION]... [PACKAGE]...
+Update package definitions to the latest style.\n"))
+  (display (G_ "
+  -L, --load-path=DIR    prepend DIR to the package module search path"))
+  (display (G_ "
+  -e, --expression=EXPR  consider the package EXPR evaluates to"))
+  (display (G_ "
+      --input-simplification=POLICY
+                         follow POLICY for package input simplification, one
+                         of 'silent', 'safe', or 'always'"))
+  (newline)
+  (display (G_ "
+  -h, --help             display this help and exit"))
+  (display (G_ "
+  -V, --version          display version information and exit"))
+  (newline)
+  (show-bug-report-information))
+
+(define %default-options
+  ;; Alist of default option values.
+  '((input-simplification-policy . silent)))
+
+
+;;;
+;;; Entry point.
+;;;
+
+(define-command (guix-style . args)
+  (category packaging)
+  (synopsis "update the style of package definitions")
+
+  (define (parse-options)
+    ;; Return the alist of option values.
+    (parse-command-line args %options (list %default-options)
+                        #:build-options? #f))
+
+  (let* ((opts     (parse-options))
+         (packages (filter-map (match-lambda
+                                 (('argument . spec)
+                                  (specification->package spec))
+                                 (('expression . str)
+                                  (read/eval str))
+                                 (_ #f))
+                               opts))
+         (policy   (assoc-ref opts 'input-simplification-policy)))
+    (for-each (lambda (package)
+                (simplify-package-inputs package #:policy policy))
+              ;; Sort package by source code location so that we start editing
+              ;; files from the bottom and going upward.  That way, the
+              ;; 'location' field of <package> records is not invalidated as
+              ;; we modify files.
+              (sort (if (null? packages)
+                        (fold-packages cons '() #:select? (const #t))
+                        packages)
+                    (negate package-location<?)))))
diff --git a/guix/store/roots.scm b/guix/store/roots.scm
index 58653507f8..222f69c5c0 100644
--- a/guix/store/roots.scm
+++ b/guix/store/roots.scm
@@ -50,7 +50,7 @@
 
 (define (gc-roots)
   "Return the list of garbage collector roots (\"GC roots\").  This includes
-\"regular\" roots fount in %GC-ROOTS-DIRECTORY as well as indirect roots that
+\"regular\" roots found in %GC-ROOTS-DIRECTORY as well as indirect roots that
 are user-controlled symlinks stored anywhere on the file system."
   (define (regular? file)
     (match file
diff --git a/guix/svn-download.scm b/guix/svn-download.scm
index b96151234c..28ad49977b 100644
--- a/guix/svn-download.scm
+++ b/guix/svn-download.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014, 2015, 2016, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2015, 2016, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Sree Harsha Totakura <sreeharsha@totakura.in>
 ;;; Copyright © 2017, 2019 Ricardo Wurmus <rekado@elephly.net>
 ;;;
@@ -134,7 +134,7 @@ HASH-ALGO (a symbol).  Use NAME as the file name, or a generic name if #f."
                               #$(svn-multi-reference-recursive? ref)
                               #:user-name #$(svn-multi-reference-user-name ref)
                               #:password #$(svn-multi-reference-password ref)))
-                 '#$(svn-multi-reference-locations ref)))))
+                 '#$(sexp->gexp (svn-multi-reference-locations ref))))))
 
   (mlet %store-monad ((guile (package->derivation guile system)))
     (gexp->derivation (or name "svn-checkout") build
diff --git a/guix/tests.scm b/guix/tests.scm
index fc3d521163..063b20183d 100644
--- a/guix/tests.scm
+++ b/guix/tests.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,12 +20,13 @@
   #:use-module ((guix config) #:select (%storedir %localstatedir))
   #:use-module (guix store)
   #:use-module (guix derivations)
+  #:use-module (guix gexp)
   #:use-module (guix packages)
   #:use-module (guix base32)
   #:use-module (guix serialization)
   #:use-module (guix monads)
   #:use-module ((guix utils) #:select (substitute-keyword-arguments))
-  #:use-module ((guix build utils) #:select (mkdir-p))
+  #:use-module ((guix build utils) #:select (mkdir-p compressor))
   #:use-module ((gcrypt hash) #:hide (sha256))
   #:use-module (guix build-system gnu)
   #:use-module (gnu packages base)
@@ -60,7 +61,9 @@
             dummy-package
             dummy-origin
 
-            gnu-make-for-tests))
+            gnu-make-for-tests
+
+            test-file))
 
 ;;; Commentary:
 ;;;
@@ -135,17 +138,21 @@ no external store to talk to."
           (open-connection))
         (const #f)))
 
-    (dynamic-wind
-      (const #t)
-      (lambda ()
-        ;; Since we're using a different store we must clear the
-        ;; package-derivation cache.
-        (hash-clear! (@@ (guix packages) %derivation-cache))
-
-        (proc store))
-      (lambda ()
-        (when store
-          (close-connection store))))))
+    (let ((store-variable (getenv "NIX_STORE_DIR")))
+      (dynamic-wind
+        (lambda ()
+          ;; This environment variable is set by 'pre-inst-env' but it
+          ;; influences '%store-directory' in (guix build utils), which is
+          ;; itself used in (guix packages).  Thus, unset it before going any
+          ;; further.
+          (unsetenv "NIX_STORE_DIR"))
+        (lambda ()
+          (proc store))
+        (lambda ()
+          (when store-variable
+            (setenv "NIX_STORE_DIR" store-variable))
+          (when store
+            (close-connection store)))))))
 
 (define-syntax-rule (with-external-store store exp ...)
   "Evaluate EXP with STORE bound to the external store rather than the
@@ -435,6 +442,42 @@ default values, and with EXTRA-FIELDS set as specified."
      (native-inputs '())                          ;no need for 'pkg-config'
      (inputs %bootstrap-inputs-for-tests))))
 
+
+;;;
+;;; Test utility procedures.
+
+(define (test-file store name content)
+  "Create a simple file in STORE with CONTENT (a string), compressed according
+to its file name extension.  Return both its file name and its hash."
+  (let* ((ext (string-index-right name #\.))
+         (name-sans-ext (if ext
+                            (string-take name (string-index-right name #\.))
+                            name))
+         (comp (compressor name))
+         (command #~(if #+comp
+                        (string-append #+%bootstrap-coreutils&co
+                                       "/bin/" #+comp)
+                        #f))
+         (f (with-imported-modules '((guix build utils))
+              (computed-file name
+                             #~(begin
+                                 (use-modules (guix build utils)
+                                              (rnrs io simple))
+                                 (with-output-to-file #+name-sans-ext
+                                   (lambda _
+                                     (format #t #+content)))
+                                 (when #+command
+                                   (invoke #+command #+name-sans-ext))
+                                 (copy-file #+name #$output)))))
+         (file-drv (run-with-store store (lower-object f)))
+         (file (derivation->output-path file-drv))
+         (file-drv-outputs (derivation-outputs file-drv))
+         (_ (build-derivations store (list file-drv)))
+         (file-hash (derivation-output-hash
+                     (assoc-ref file-drv-outputs "out"))))
+    (values file file-hash)))
+
+;;;
 ;; Local Variables:
 ;; eval: (put 'call-with-derivation-narinfo 'scheme-indent-function 1)
 ;; eval: (put 'call-with-derivation-substitute 'scheme-indent-function 2)
diff --git a/guix/utils.scm b/guix/utils.scm
index 2920fa7684..0cf299fac6 100644
--- a/guix/utils.scm
+++ b/guix/utils.scm
@@ -8,8 +8,10 @@
 ;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2018, 2020 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2021 Simon Tournier <zimon.toutoune@gmail.com>
 ;;; Copyright © 2021 Chris Marusich <cmmarusich@gmail.com>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;; Copyright © 2018 Steve Sprang <scs@stevesprang.com>
 ;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
@@ -35,11 +37,14 @@
   #:use-module (srfi srfi-11)
   #:use-module (srfi srfi-26)
   #:use-module (srfi srfi-39)
+  #:use-module (srfi srfi-71)
   #:use-module (ice-9 ftw)
   #:use-module (rnrs io ports)                    ;need 'port-position' etc.
   #:use-module ((rnrs bytevectors) #:select (bytevector-u8-set!))
   #:use-module (guix memoization)
-  #:use-module ((guix build utils) #:select (dump-port mkdir-p delete-file-recursively))
+  #:use-module ((guix build utils)
+                #:select (dump-port mkdir-p delete-file-recursively
+                          call-with-temporary-output-file %xz-parallel-args))
   #:use-module ((guix build syscalls) #:select (mkdtemp! fdatasync))
   #:use-module ((guix combinators) #:select (fold2))
   #:use-module (guix diagnostics)           ;<location>, &error-location, etc.
@@ -48,6 +53,7 @@
   #:use-module (ice-9 match)
   #:use-module (ice-9 format)
   #:use-module ((ice-9 iconv) #:prefix iconv:)
+  #:use-module (ice-9 vlist)
   #:autoload   (zlib) (make-zlib-input-port make-zlib-output-port)
   #:use-module (system foreign)
   #:re-export (<location>                         ;for backwards compatibility
@@ -65,7 +71,9 @@
 
                &fix-hint
                fix-hint?
-               condition-fix-hint)
+               condition-fix-hint
+
+               call-with-temporary-output-file)
   #:export (strip-keyword-arguments
             default-keyword-arguments
             substitute-keyword-arguments
@@ -78,7 +86,11 @@
             %current-system
             %current-target-system
             package-name->name+version
+            target-linux?
+            target-hurd?
             target-mingw?
+            target-x86-32?
+            target-x86-64?
             target-arm32?
             target-aarch64?
             target-arm?
@@ -104,7 +116,6 @@
             tarball-sans-extension
             compressed-file?
             switch-symlinks
-            call-with-temporary-output-file
             call-with-temporary-directory
             with-atomic-file-output
 
@@ -115,6 +126,7 @@
             cache-directory
 
             readlink*
+            go-to-location
             edit-expression
 
             filtered-port
@@ -246,6 +258,18 @@ a symbol such as 'xz."
                            '()))
     (_             (error "unsupported compression scheme" compression))))
 
+(define (compressed-port compression input)
+  "Return an input port where INPUT is compressed according to COMPRESSION,
+a symbol such as 'xz."
+  (match compression
+    ((or #f 'none) (values input '()))
+    ('bzip2        (filtered-port `(,%bzip2 "-c") input))
+    ('xz           (filtered-port `(,%xz "-c" ,@(%xz-parallel-args)) input))
+    ('gzip         (filtered-port `(,%gzip "-c") input))
+    ('lzip         (values (lzip-port 'make-lzip-input-port/compressed input)
+                           '()))
+    (_             (error "unsupported compression scheme" compression))))
+
 (define (call-with-decompressed-port compression port proc)
   "Call PROC with a wrapper around PORT, a file port, that decompresses data
 read from PORT according to COMPRESSION, a symbol such as 'xz."
@@ -325,43 +349,129 @@ a list of command-line arguments passed to the compression program."
         (unless (every (compose zero? cdr waitpid) pids)
           (error "compressed-output-port failure" pids))))))
 
+(define %source-location-map
+  ;; Maps inode/device tuples to "source location maps" used by
+  ;; 'go-to-location'.
+  (make-hash-table))
+
+(define (source-location-key/stamp stat)
+  "Return two values: the key for STAT in %SOURCE-LOCATION-MAP, and a stamp
+used to invalidate corresponding entries."
+  (let ((key   (list (stat:ino stat) (stat:dev stat)))
+        (stamp (list (stat:mtime stat) (stat:mtimensec stat)
+                     (stat:size stat))))
+    (values key stamp)))
+
+(define* (go-to-location port line column)
+  "Jump to LINE and COLUMN (both one-indexed) in PORT.  Maintain a source
+location map such that this can boil down to seek(2) and a few read(2) calls,
+which can drastically speed up repetitive operations on large files."
+  (let* ((stat       (stat port))
+         (key stamp  (source-location-key/stamp stat))
+
+         ;; Look for an up-to-date source map for KEY.  The map is a vlist
+         ;; where each entry gives the byte offset of the beginning of a line:
+         ;; element 0 is the offset of the first line, element 1 the offset of
+         ;; the second line, etc.  The map is filled lazily.
+         (source-map (match (hash-ref %source-location-map key)
+                       (#f
+                        (vlist-cons 0 vlist-null))
+                       ((cache-stamp ... map)
+                        (if (equal? cache-stamp stamp) ;invalidate?
+                            map
+                            (vlist-cons 0 vlist-null)))))
+         (last       (vlist-length source-map)))
+    ;; Jump to LINE, ideally via SOURCE-MAP.
+    (if (<= line last)
+        (seek port (vlist-ref source-map (- line 1)) SEEK_SET)
+        (let ((target line)
+              (offset (vlist-ref source-map (- last 1))))
+          (seek port offset SEEK_SET)
+          (let loop ((source-map (vlist-reverse source-map))
+                     (line last))
+            (if (< line target)
+                (match (read-char port)
+                  (#\newline
+                   (loop (vlist-cons (ftell port) source-map)
+                         (+ 1 line)))
+                  ((? eof-object?)
+                   (error "unexpected end of file" port line))
+                  (chr (loop source-map line)))
+                (hash-set! %source-location-map key
+                           `(,@stamp
+                             ,(vlist-reverse source-map)))))))
+
+    ;; Read up to COLUMN.
+    (let ((target column))
+      (let loop ((column 1))
+        (when (< column target)
+          (match (read-char port)
+            (#\newline (error "unexpected end of line" port))
+            (#\tab (loop (+ 8 column)))
+            (chr (loop (+ 1 column)))))))
+
+    ;; Update PORT's position info.
+    (set-port-line! port (- line 1))
+    (set-port-column! port (- column 1))))
+
+(define (move-source-location-map! source target line)
+  "Move the source location map from SOURCE up to LINE to TARGET.  SOURCE and
+TARGET must be stat buffers as returned by 'stat'."
+  (let* ((source-key (source-location-key/stamp source))
+         (target-key target-stamp (source-location-key/stamp target)))
+    (match (hash-ref %source-location-map source-key)
+      (#f #t)
+      ((_ ... source-map)
+       ;; Strip the source map and update the associated stamp.
+       (let ((source-map (vlist-take source-map (max line 1))))
+         (hash-remove! %source-location-map source-key)
+         (hash-set! %source-location-map target-key
+                    `(,@target-stamp ,source-map)))))))
+
 (define* (edit-expression source-properties proc #:key (encoding "UTF-8"))
   "Edit the expression specified by SOURCE-PROPERTIES using PROC, which should
 be a procedure that takes the original expression in string and returns a new
 one.  ENCODING will be used to interpret all port I/O, it default to UTF-8.
 This procedure returns #t on success."
+  (define file   (assq-ref source-properties 'filename))
+  (define line   (assq-ref source-properties 'line))
+  (define column (assq-ref source-properties 'column))
+
   (with-fluids ((%default-port-encoding encoding))
-    (let* ((file   (assq-ref source-properties 'filename))
-           (line   (assq-ref source-properties 'line))
-           (column (assq-ref source-properties 'column))
-           (in     (open-input-file file))
-           ;; The start byte position of the expression.
-           (start  (begin (while (not (and (= line (port-line in))
-                                           (= column (port-column in))))
-                            (when (eof-object? (read-char in))
-                              (error (format #f "~a: end of file~%" in))))
-                          (ftell in)))
-           ;; The end byte position of the expression.
-           (end    (begin (read in) (ftell in))))
-      (seek in 0 SEEK_SET) ; read from the beginning of the file.
-      (let* ((pre-bv  (get-bytevector-n in start))
-             ;; The expression in string form.
-             (str     (iconv:bytevector->string
-                       (get-bytevector-n in (- end start))
-                       (port-encoding in)))
-             (post-bv (get-bytevector-all in))
-             (str*    (proc str)))
-        ;; Verify the edited expression is still a scheme expression.
-        (call-with-input-string str* read)
-        ;; Update the file with edited expression.
-        (with-atomic-file-output file
-          (lambda (out)
-            (put-bytevector out pre-bv)
-            (display str* out)
-            ;; post-bv maybe the end-of-file object.
-            (when (not (eof-object? post-bv))
-              (put-bytevector out post-bv))
-            #t))))))
+    (call-with-input-file file
+      (lambda (in)
+        (let* ( ;; The start byte position of the expression.
+               (start  (begin (go-to-location in (+ 1 line) (+ 1 column))
+                              (ftell in)))
+               ;; The end byte position of the expression.
+               (end    (begin (read in) (ftell in))))
+          (seek in 0 SEEK_SET)          ; read from the beginning of the file.
+          (let* ((pre-bv  (get-bytevector-n in start))
+                 ;; The expression in string form.
+                 (str     (iconv:bytevector->string
+                           (get-bytevector-n in (- end start))
+                           (port-encoding in)))
+                 (post-bv (get-bytevector-all in))
+                 (str*    (proc str)))
+            ;; Modify FILE only if there are changes.
+            (unless (string=? str* str)
+              ;; Verify the edited expression is still a scheme expression.
+              (call-with-input-string str* read)
+              ;; Update the file with edited expression.
+              (with-atomic-file-output file
+                (lambda (out)
+                  (put-bytevector out pre-bv)
+                  (display str* out)
+                  ;; post-bv maybe the end-of-file object.
+                  (when (not (eof-object? post-bv))
+                    (put-bytevector out post-bv))
+                  #t))
+
+              ;; Due to 'with-atomic-file-output', IN and FILE no longer share
+              ;; the same inode, but we can reassign the source map up to LINE
+              ;; to the new file.
+              (move-source-location-map! (stat in) (stat file)
+                                         (+ 1 line)))))))))
 
 
 ;;;
@@ -531,10 +641,43 @@ a character other than '@'."
     (idx (values (substring spec 0 idx)
                  (substring spec (1+ idx))))))
 
+(define* (target-linux? #:optional (target (or (%current-target-system)
+                                               (%current-system))))
+  "Does the operating system of TARGET use the Linux kernel?"
+  (->bool (string-contains target "linux")))
+
+(define* (target-hurd? #:optional (target (or (%current-target-system)
+                                              (%current-system))))
+  "Does TARGET represent the GNU(/Hurd) system?"
+  (and (string-suffix? "-gnu" target)
+       (not (string-contains target "linux"))))
+
 (define* (target-mingw? #:optional (target (%current-target-system)))
+  "Is the operating system of TARGET Windows?"
   (and target
+       ;; The "-32" doesn't mean TARGET is 32-bit, as "x86_64-w64-mingw32"
+       ;; is a valid triplet (see the (gnu ci) module) and 'w64' and 'x86_64'
+       ;; are 64-bit.
        (string-suffix? "-mingw32" target)))
 
+(define* (target-x86-32? #:optional (target (or (%current-target-system)
+                                                (%current-system))))
+  "Is the architecture of TARGET a variant of Intel's 32-bit architecture
+(IA32)?"
+  ;; Intel also has a 16-bit architecture in the iN86 series, i286
+  ;; (see, e.g. https://en.wikipedia.org/wiki/Intel/808286) so this
+  ;; procedure is not named target-x86?.
+  (or (string-prefix? "i386-" target)
+      (string-prefix? "i486-" target)
+      (string-prefix? "i586-" target)
+      (string-prefix? "i686-" target)))
+
+(define* (target-x86-64? #:optional (target (or (%current-target-system)
+                                                 (%current-system))))
+  "Is the architecture of TARGET a variant of Intel/AMD's 64-bit
+architecture (x86_64)?"
+  (string-prefix? "x86_64-" target))
+
 (define* (target-arm32? #:optional (target (or (%current-target-system)
                                                (%current-system))))
   (string-prefix? "arm" target))
@@ -738,22 +881,6 @@ REPLACEMENT."
                        (substring str start index)
                        pieces))))))))
 
-(define (call-with-temporary-output-file proc)
-  "Call PROC with a name of a temporary file and open output port to that
-file; close the file and delete it when leaving the dynamic extent of this
-call."
-  (let* ((directory (or (getenv "TMPDIR") "/tmp"))
-         (template  (string-append directory "/guix-file.XXXXXX"))
-         (out       (mkstemp! template)))
-    (dynamic-wind
-      (lambda ()
-        #t)
-      (lambda ()
-        (proc template out))
-      (lambda ()
-        (false-if-exception (close out))
-        (false-if-exception (delete-file template))))))
-
 (define (call-with-temporary-directory proc)
   "Call PROC with a name of a temporary directory; close the directory and
 delete it when leaving the dynamic extent of this call."
diff --git a/m4/guix.m4 b/m4/guix.m4
index 05d409a674..e778a56004 100644
--- a/m4/guix.m4
+++ b/m4/guix.m4
@@ -1,7 +1,7 @@
 dnl GNU Guix --- Functional package management for GNU
 dnl Copyright © 2012, 2013, 2014, 2015, 2016, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 dnl Copyright © 2014 Mark H Weaver <mhw@netris.org>
-dnl Copyright © 2017 Efraim Flashner <efraim@flashner.co.il>
+dnl Copyright © 2017, 2020 Efraim Flashner <efraim@flashner.co.il>
 dnl Copyright © 2021 Chris Marusich <cmmarusich@gmail.com>
 dnl
 dnl This file is part of GNU Guix.
@@ -89,7 +89,7 @@ courageous and port the GNU System distribution to it (see
   # Currently only Linux-based systems are supported, and only on some
   # platforms.
   case "$guix_system" in
-    x86_64-linux|i686-linux|armhf-linux|aarch64-linux|powerpc64le-linux)
+    x86_64-linux|i686-linux|armhf-linux|aarch64-linux|powerpc64le-linux|powerpc-linux)
       ;;
     *)
       if test "x$guix_courageous" = "xyes"; then
diff --git a/po/guix/POTFILES.in b/po/guix/POTFILES.in
index 14324b25de..6a55046531 100644
--- a/po/guix/POTFILES.in
+++ b/po/guix/POTFILES.in
@@ -115,5 +115,6 @@ guix/scripts/offload.scm
 guix/scripts/perform-download.scm
 guix/scripts/refresh.scm
 guix/scripts/repl.scm
+guix/scripts/style.scm
 guix/scripts/system/reconfigure.scm
 nix/nix-daemon/guix-daemon.cc
diff --git a/tests/build-utils.scm b/tests/build-utils.scm
index 654b480ed9..6b131c0af8 100644
--- a/tests/build-utils.scm
+++ b/tests/build-utils.scm
@@ -1,6 +1,8 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2012, 2015, 2016, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2019 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -18,7 +20,7 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 
-(define-module (test-build-utils)
+(define-module (test build-utils)
   #:use-module (guix tests)
   #:use-module (guix build utils)
   #:use-module ((guix utils)
@@ -241,4 +243,49 @@ print('hello world')"))
                                            "/some/other/path")))
          #f)))))
 
+(test-equal "substitute*, text contains a NUL byte, UTF-8"
+  "c\0d"
+  (with-fluids ((%default-port-encoding "UTF-8")
+                (%default-port-conversion-strategy 'error))
+    ;; The GNU libc is locale sensitive.  Depending on the value of LANG, the
+    ;; test could fail with "string contains #\\nul character: ~S" or "cannot
+    ;; convert wide string to output locale".
+    (setlocale LC_ALL "en_US.UTF-8")
+    (call-with-temporary-output-file
+     (lambda (file port)
+       (format port "a\0b")
+       (flush-output-port port)
+
+       (substitute* file
+         (("a") "c")
+         (("b") "d"))
+
+       (with-input-from-file file
+         (lambda _
+           (get-string-all (current-input-port))))))))
+
+(test-equal "search-input-file: exception if not found"
+  `((path)
+    (file . "does-not-exist"))
+  (guard (e ((search-error? e)
+             `((path . ,(search-error-path e))
+               (file . ,(search-error-file e)))))
+    (search-input-file '() "does-not-exist")))
+
+(test-equal "search-input-file: can find if existent"
+  (which "guile")
+  (search-input-file
+    `(("guile/bin" . ,(dirname (which "guile"))))
+    "guile"))
+
+(test-equal "search-input-file: can search in multiple directories"
+  (which "guile")
+  (call-with-temporary-directory
+    (lambda (directory)
+      (search-input-file
+        `(("irrelevant" . ,directory)
+          ("guile/bin" . ,(dirname (which "guile"))))
+        "guile"))))
+
+
 (test-end)
diff --git a/tests/builders.scm b/tests/builders.scm
index fdcf38ded3..f609631ae7 100644
--- a/tests/builders.scm
+++ b/tests/builders.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2018, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2021 Lars-Dominik Braun <lars@6xq.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -17,22 +18,27 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 
-(define-module (test-builders)
+(define-module (tests builders)
   #:use-module (guix download)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
+  #:use-module (guix build gnu-build-system)
+  #:use-module (guix build utils)
+  #:use-module (guix build-system python)
   #:use-module (guix store)
+  #:use-module (guix monads)
   #:use-module (guix utils)
   #:use-module (guix base32)
   #:use-module (guix derivations)
   #:use-module (gcrypt hash)
   #:use-module (guix tests)
-  #:use-module ((guix packages)
-                #:select (package?
-                          package-derivation package-native-search-paths))
+  #:use-module (guix packages)
   #:use-module (gnu packages bootstrap)
   #:use-module (ice-9 match)
+  #:use-module (ice-9 textual-ports)
   #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-11)
+  #:use-module (srfi srfi-34)
   #:use-module (srfi srfi-64))
 
 ;; Test the higher-level builders.
@@ -78,4 +84,116 @@
 (test-assert "gnu-build-system"
   (build-system? gnu-build-system))
 
+(define unpack (assoc-ref %standard-phases 'unpack))
+
+(define compressors '(("gzip"  . "gz")
+                      ("xz"    . "xz")
+                      ("bzip2" . "bz2")
+                      (#f      . #f)))
+
+(for-each
+ (match-lambda
+   ((comp . ext)
+
+    (unless (network-reachable?) (test-skip 1)) ;for bootstrap binaries
+    (test-equal (string-append "gnu-build-system unpack phase, "
+                               "single file (compression: "
+                               (if comp comp "None") ")")
+      "expected text"
+      (let*-values
+          (((name) "test")
+           ((compressed-name) (if ext
+                                  (string-append name "." ext)
+                                  name))
+           ((file hash) (test-file %store compressed-name "expected text")))
+        (call-with-temporary-directory
+         (lambda (dir)
+           (with-directory-excursion dir
+             (unpack #:source file)
+             (call-with-input-file name get-string-all))))))))
+ compressors)
+
+
+;;;
+;;; Test the sanity-check phase of the Python build system.
+;;;
+
+(define* (make-python-dummy name #:key (setup-py-extra "")
+                            (init-py "") (use-setuptools? #t))
+  (dummy-package (string-append "python-dummy-" name)
+    (version "0.1")
+    (build-system python-build-system)
+    (arguments
+     `(#:tests? #f
+       #:use-setuptools? ,use-setuptools?
+       #:phases
+       (modify-phases %standard-phases
+         (replace 'unpack
+           (lambda _
+             (mkdir-p "dummy")
+             (with-output-to-file "dummy/__init__.py"
+               (lambda _
+                 (display ,init-py)))
+             (with-output-to-file "setup.py"
+               (lambda _
+                 (format #t "\
+~a
+setup(
+     name='dummy-~a',
+     version='0.1',
+     packages=['dummy'],
+     ~a
+     )"
+                         (if ,use-setuptools?
+                             "from setuptools import setup"
+                             "from distutils.core import setup")
+                         ,name ,setup-py-extra))))))))))
+
+(define python-dummy-ok
+  (make-python-dummy "ok"))
+
+;; distutil won't install any metadata, so make sure our script does not fail
+;; on a otherwise fine package.
+(define python-dummy-no-setuptools
+  (make-python-dummy
+   "no-setuptools" #:use-setuptools? #f))
+
+(define python-dummy-fail-requirements
+  (make-python-dummy "fail-requirements"
+                     #:setup-py-extra "install_requires=['nonexistent'],"))
+
+(define python-dummy-fail-import
+  (make-python-dummy "fail-import" #:init-py "import nonexistent"))
+
+(define python-dummy-fail-console-script
+  (make-python-dummy "fail-console-script"
+                     #:setup-py-extra (string-append "entry_points={'console_scripts': "
+                                                     "['broken = dummy:nonexistent']},")))
+
+(define (check-build-success store p)
+  (unless store (test-skip 1))
+  (test-assert (string-append "python-build-system: " (package-name p))
+    (let* ((drv (package-derivation store p)))
+      (build-derivations store (list drv)))))
+
+(define (check-build-failure store p)
+  (unless store (test-skip 1))
+  (test-assert (string-append "python-build-system: " (package-name p))
+    (let ((drv (package-derivation store p)))
+      (guard (c ((store-protocol-error? c)
+                 (pk 'failure c #t)))             ;good!
+        (build-derivations store (list drv))
+        #f))))                                    ;bad: it should have failed
+
+(with-external-store store
+  (for-each (lambda (p) (check-build-success store p))
+            (list
+             python-dummy-ok
+             python-dummy-no-setuptools))
+  (for-each (lambda (p) (check-build-failure store p))
+            (list
+             python-dummy-fail-requirements
+             python-dummy-fail-import
+             python-dummy-fail-console-script)))
+
 (test-end "builders")
diff --git a/tests/cran.scm b/tests/cran.scm
index 70d2277198..e59b7daef7 100644
--- a/tests/cran.scm
+++ b/tests/cran.scm
@@ -117,15 +117,9 @@ Date/Publication: 2015-07-14 14:15:16
                       (? string? hash)))))
          ('properties ('quasiquote (('upstream-name . "My-Example"))))
          ('build-system 'r-build-system)
-         ('inputs
-          ('quasiquote
-           (("cairo" ('unquote 'cairo)))))
+         ('inputs ('list 'cairo))
          ('propagated-inputs
-          ('quasiquote
-           (("r-bh" ('unquote 'r-bh))
-            ("r-proto" ('unquote 'r-proto))
-            ("r-rcpp" ('unquote 'r-rcpp))
-            ("r-scales" ('unquote 'r-scales)))))
+          ('list 'r-bh 'r-proto 'r-rcpp 'r-scales))
          ('home-page "http://gnu.org/s/my-example")
          ('synopsis "Example package")
          ('description
diff --git a/tests/egg.scm b/tests/egg.scm
index 0884d8d429..9e45a42443 100644
--- a/tests/egg.scm
+++ b/tests/egg.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
+;;; Copyright © 2021 Sarah Morgensen <iskarian@mgsn.dev>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -86,16 +87,9 @@
     ('build-system 'chicken-build-system)
     ('arguments ('quasiquote ('#:egg-name "foo")))
     ('native-inputs
-     ('quasiquote
-      (("chicken-test" ('unquote chicken-test))
-       ("chicken-srfi-1" ('unquote chicken-srfi-1))
-       ("chicken-begin-syntax" ('unquote chicken-begin-syntax)))))
-    ('inputs
-     ('quasiquote
-      (("libgit2" ('unquote libgit2)))))
-    ('propagated-inputs
-     ('quasiquote
-      (("chicken-datatype" ('unquote chicken-datatype)))))
+     ('list 'chicken-test 'chicken-srfi-1 'chicken-begin-syntax))
+    ('inputs ('list 'libgit2))
+    ('propagated-inputs ('list 'chicken-datatype))
     ('home-page "https://wiki.call-cc.org/egg/foo")
     ('synopsis "Example egg")
     ('description #f)
@@ -108,16 +102,9 @@
     ('source (? file-like? source))
     ('build-system 'chicken-build-system)
     ('arguments ('quasiquote ('#:egg-name "bar")))
-    ('native-inputs
-     ('quasiquote
-      (("chicken-test" ('unquote chicken-test))
-       ("chicken-begin-syntax" ('unquote chicken-begin-syntax)))))
-    ('inputs
-     ('quasiquote
-      (("libgit2" ('unquote libgit2)))))
-    ('propagated-inputs
-     ('quasiquote
-      (("chicken-datatype" ('unquote chicken-datatype)))))
+    ('native-inputs ('list 'chicken-test 'chicken-begin-syntax))
+    ('inputs ('list 'libgit2))
+    ('propagated-inputs ('list 'chicken-datatype))
     ('home-page "https://wiki.call-cc.org/egg/bar")
     ('synopsis "Example egg")
     ('description #f)
diff --git a/tests/gem.scm b/tests/gem.scm
index 751bba656f..c8fe15398e 100644
--- a/tests/gem.scm
+++ b/tests/gem.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2015 David Thompson <davet@gnu.org>
 ;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
+;;; Copyright © 2021 Sarah Morgensen <iskarian@mgsn.dev>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -93,10 +94,7 @@
                      ('base32
                       "1a270mlajhrmpqbhxcqjqypnvgrq4pgixpv3w9gwp1wrrapnwrzk"))))
          ('build-system 'ruby-build-system)
-         ('propagated-inputs
-          ('quasiquote
-           (("bundler" ('unquote 'bundler))
-            ("ruby-bar" ('unquote 'ruby-bar)))))
+         ('propagated-inputs ('list 'bundler 'ruby-bar))
          ('synopsis "A cool gem")
          ('description "This package provides a cool gem")
          ('home-page "https://example.com")
@@ -132,9 +130,7 @@
                   ('base32
                    "1a270mlajhrmpqbhxcqjqypnvgrq4pgixpv3w9gwp1wrrapnwrzk"))))
               ('build-system 'ruby-build-system)
-              ('propagated-inputs
-               ('quasiquote
-                (('"bundler" ('unquote 'bundler)))))
+              ('propagated-inputs ('list 'bundler))
               ('synopsis "Another cool gem")
               ('description "Another cool gem")
               ('home-page "https://example.com")
@@ -165,10 +161,7 @@
                   ('base32
                    "1a270mlajhrmpqbhxcqjqypnvgrq4pgixpv3w9gwp1wrrapnwrzk"))))
               ('build-system 'ruby-build-system)
-              ('propagated-inputs
-               ('quasiquote
-                (("bundler" ('unquote 'bundler))
-                 ("ruby-bar" ('unquote 'ruby-bar)))))
+              ('propagated-inputs ('list 'bundler 'ruby-bar))
               ('synopsis "A cool gem")
               ('description "This package provides a cool gem")
               ('home-page "https://example.com")
diff --git a/tests/gexp.scm b/tests/gexp.scm
index 39a47d4e8c..709a198e1e 100644
--- a/tests/gexp.scm
+++ b/tests/gexp.scm
@@ -127,6 +127,13 @@
          (null? (gexp-inputs exp))
          (gexp->sexp* exp))))
 
+(test-equal "sexp->gexp"
+  '(a b (c d) e)
+  (let ((exp (sexp->gexp '(a b (c d) e))))
+    (and (gexp? exp)
+         (null? (gexp-inputs exp))
+         (gexp->sexp* exp))))
+
 (test-equal "unquote"
   '(display `(foo ,(+ 2 3)))
   (let ((exp (gexp (display `(foo ,(+ 2 3))))))
diff --git a/tests/gremlin.scm b/tests/gremlin.scm
index b0bb7a8e49..9af899c89a 100644
--- a/tests/gremlin.scm
+++ b/tests/gremlin.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2018, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -23,9 +23,12 @@
   #:use-module (guix build gremlin)
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-26)
+  #:use-module (srfi srfi-34)
   #:use-module (srfi srfi-64)
   #:use-module (rnrs io ports)
   #:use-module (ice-9 popen)
+  #:use-module (ice-9 rdelim)
+  #:use-module (ice-9 regex)
   #:use-module (ice-9 match))
 
 (define %guile-executable
@@ -57,6 +60,44 @@
                        (string-take lib (string-contains lib ".so")))
                      (elf-dynamic-info-needed dyninfo))))))
 
+(unless (and %guile-executable (not (getenv "LD_LIBRARY_PATH"))
+             (file-needed %guile-executable) ;statically linked?
+             ;; When Guix has been built on a foreign distro, using a
+             ;; toolchain and libraries from that foreign distro, it is not
+             ;; unusual for the runpath to be empty.
+             (pair? (file-runpath %guile-executable)))
+  (test-skip 1))
+(test-assert "file-needed/recursive"
+  (let* ((needed (file-needed/recursive %guile-executable))
+         (pipe   (dynamic-wind
+                   (lambda ()
+                     ;; Tell ld.so to list loaded objects, like 'ldd' does.
+                     (setenv "LD_TRACE_LOADED_OBJECTS" "yup"))
+                   (lambda ()
+                     (open-pipe* OPEN_READ %guile-executable))
+                   (lambda ()
+                     (unsetenv "LD_TRACE_LOADED_OBJECTS")))))
+    (define ldd-rx
+      (make-regexp "^[[:blank:]]+([[:graph:]]+ => )?([[:graph:]]+) .*$"))
+
+    (define (read-ldd-output port)
+      ;; Read from PORT output in GNU ldd format.
+      (let loop ((result '()))
+        (match (read-line port)
+          ((? eof-object?)
+           (reverse result))
+          ((= (cut regexp-exec ldd-rx <>) m)
+           (if m
+               (loop (cons (match:substring m 2) result))
+               (loop result))))))
+
+    (define ground-truth
+      (remove (cut string-prefix? "linux-vdso.so" <>)
+              (read-ldd-output pipe)))
+
+    (and (zero? (close-pipe pipe))
+         (lset= string=? (pk 'truth ground-truth) (pk 'needed needed)))))
+
 (test-equal "expand-origin"
   '("OOO/../lib"
     "OOO"
@@ -96,4 +137,49 @@
                 (close-pipe pipe)
                 str)))))))
 
+(unless c-compiler
+  (test-skip 1))
+(test-equal "set-file-runpath + file-runpath"
+  "hello\n"
+  (call-with-temporary-directory
+   (lambda (directory)
+     (with-directory-excursion directory
+       (call-with-output-file "t.c"
+         (lambda (port)
+           (display "int main () { puts(\"hello\"); }" port)))
+
+       (invoke c-compiler "t.c"
+               "-Wl,--enable-new-dtags" "-Wl,-rpath=/xxxxxxxxx")
+
+       (let ((original-runpath (file-runpath "a.out")))
+         (and (member "/xxxxxxxxx" original-runpath)
+              (guard (c ((runpath-too-long-error? c)
+                         (string=? "a.out" (runpath-too-long-error-file c))))
+                (set-file-runpath "a.out" (list (make-string 777 #\y))))
+              (let ((runpath (delete "/xxxxxxxxx" original-runpath)))
+                (set-file-runpath "a.out" runpath)
+                (equal? runpath (file-runpath "a.out")))
+              (let* ((pipe (open-input-pipe "./a.out"))
+                     (str  (get-string-all pipe)))
+                (close-pipe pipe)
+                str)))))))
+
+(unless c-compiler
+  (test-skip 1))
+(test-equal "elf-dynamic-info-soname"
+  "libfoo.so.2"
+  (call-with-temporary-directory
+   (lambda (directory)
+     (with-directory-excursion directory
+       (call-with-output-file "t.c"
+         (lambda (port)
+           (display "// empty file" port)))
+       (invoke c-compiler "t.c"
+               "-shared" "-Wl,-soname,libfoo.so.2")
+       (let* ((dyninfo (elf-dynamic-info
+                       (parse-elf (call-with-input-file "a.out"
+                                    get-bytevector-all))))
+              (soname  (elf-dynamic-info-soname dyninfo)))
+	 soname)))))
+
 (test-end "gremlin")
diff --git a/tests/guix-environment.sh b/tests/guix-environment.sh
index afadcbe195..fe2430b658 100644
--- a/tests/guix-environment.sh
+++ b/tests/guix-environment.sh
@@ -192,7 +192,7 @@ then
 
     # Make sure the bootstrap binaries are all listed where they belong.
     grep -E "^export PATH=\"$profile/bin\""         "$tmpdir/a"
-    grep -E "^export CPATH=\"$profile/include\""    "$tmpdir/a"
+    grep -E "^export C_INCLUDE_PATH=\"$profile/include\"" "$tmpdir/a"
     grep -E "^export LIBRARY_PATH=\"$profile/lib\"" "$tmpdir/a"
     for dep in bootstrap-binaries-0 gcc-bootstrap-0 glibc-bootstrap-0
     do
@@ -206,8 +206,8 @@ then
     # as returned by '--search-paths'.
     guix environment --bootstrap --no-substitutes --pure \
          -e '(@ (guix tests) gnu-make-for-tests)' \
-         -- /bin/sh -c 'echo $PATH $CPATH $LIBRARY_PATH' > "$tmpdir/b"
-    ( . "$tmpdir/a" ; echo $PATH $CPATH $LIBRARY_PATH ) > "$tmpdir/c"
+         -- /bin/sh -c 'echo $PATH $C_INCLUDE_PATH $LIBRARY_PATH' > "$tmpdir/b"
+    ( . "$tmpdir/a" ; echo $PATH $C_INCLUDE_PATH $LIBRARY_PATH ) > "$tmpdir/c"
     cmp "$tmpdir/b" "$tmpdir/c"
 
     rm "$tmpdir"/*
@@ -228,7 +228,7 @@ then
 
     # Make sure the bootstrap binaries are all listed where they belong.
     grep -E "^export PATH=\"$profile/bin\""         "$tmpdir/a"
-    grep -E "^export CPATH=\"$profile/include\""    "$tmpdir/a"
+    grep -E "^export C_INCLUDE_PATH=\"$profile/include\"" "$tmpdir/a"
     grep -E "^export LIBRARY_PATH=\"$profile/lib\"" "$tmpdir/a"
     for dep in bootstrap-binaries-0 gcc-bootstrap-0 glibc-bootstrap-0 \
 				    guile-bootstrap
diff --git a/tests/hackage.scm b/tests/hackage.scm
index 53972fc643..073e35ad05 100644
--- a/tests/hackage.scm
+++ b/tests/hackage.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
 ;;; Copyright © 2019 Robert Vollmert <rob@vllmrt.net>
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
+;;; Copyright © 2021 Sarah Morgensen <iskarian@mgsn.dev>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -178,9 +179,7 @@ library
         ('base32
          (? string? hash)))))
     ('build-system 'haskell-build-system)
-    ('inputs
-     ('quasiquote
-      (("ghc-http" ('unquote 'ghc-http)))))
+    ('inputs ('list 'ghc-http))
     ('home-page "http://test.org")
     ('synopsis (? string?))
     ('description (? string?))
@@ -223,13 +222,8 @@ library
         ('base32
          (? string? hash)))))
     ('build-system 'haskell-build-system)
-    ('inputs
-     ('quasiquote
-      (("ghc-b" ('unquote 'ghc-b))
-       ("ghc-http" ('unquote 'ghc-http)))))
-    ('native-inputs
-     ('quasiquote
-      (("ghc-haskell-gi" ('unquote 'ghc-haskell-gi)))))
+    ('inputs ('list 'ghc-b 'ghc-http))
+    ('native-inputs ('list 'ghc-haskell-gi))
     ('home-page "http://test.org")
     ('synopsis (? string?))
     ('description (? string?))
@@ -353,9 +347,7 @@ executable cabal
         ('base32
          (? string? hash)))))
     ('build-system 'haskell-build-system)
-    ('inputs
-     ('quasiquote
-      (("ghc-http" ('unquote 'ghc-http)))))
+    ('inputs ('list 'ghc-http))
     ('arguments
      ('quasiquote
       ('#:cabal-revision
@@ -419,9 +411,7 @@ executable cabal
         ('base32
          (? string? hash)))))
     ('build-system 'haskell-build-system)
-    ('inputs
-     ('quasiquote
-      (("ghc-http" ('unquote 'ghc-http)))))
+    ('inputs ('list 'ghc-http))
     ('home-page "http://test.org")
     ('synopsis (? string?))
     ('description (? string?))
diff --git a/tests/lint.scm b/tests/lint.scm
index 0f51b9ef79..dfb45ef60d 100644
--- a/tests/lint.scm
+++ b/tests/lint.scm
@@ -366,6 +366,20 @@
                               `(("python-setuptools" ,python-setuptools))))))
      (check-inputs-should-not-be-an-input-at-all pkg))))
 
+(test-assert "input labels: no warnings"
+  (let ((pkg (dummy-package "x"
+               (inputs `(("glib" ,glib)
+                         ("pkg-config" ,pkg-config))))))
+    (null? (check-input-labels pkg))))
+
+(test-equal "input labels: one warning"
+  "label 'pkgkonfig' does not match package name 'pkg-config'"
+  (single-lint-warning-message
+   (let ((pkg (dummy-package "x"
+                (inputs `(("glib" ,glib)
+                          ("pkgkonfig" ,pkg-config))))))
+     (check-input-labels pkg))))
+
 (test-equal "explicit #:sh argument to 'wrap-program' is acceptable"
   '()
   (let* ((phases
@@ -572,7 +586,7 @@
       (single-lint-warning-message (check-patch-headers pkg)))))
 
 (test-equal "derivation: invalid arguments"
-  "failed to create x86_64-linux derivation: (wrong-type-arg \"map\" \"Wrong type argument: ~S\" (invalid-module) ())"
+  "failed to create x86_64-linux derivation: (match-error \"match\" \"no matching pattern\" invalid-module)"
   (match (let ((pkg (dummy-package "x"
                                    (arguments
                                     '(#:imported-modules (invalid-module))))))
diff --git a/tests/opam.scm b/tests/opam.scm
index f1e3b70cb0..e7f1ff9e39 100644
--- a/tests/opam.scm
+++ b/tests/opam.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2018 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
+;;; Copyright © 2021 Sarah Morgensen <iskarian@mgsn.dev>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -101,13 +102,8 @@ url {
                                ('base32
                                 (? string? hash)))))
                    ('build-system 'ocaml-build-system)
-                   ('propagated-inputs
-                    ('quasiquote
-                     (("ocaml-zarith" ('unquote 'ocaml-zarith)))))
-                   ('native-inputs
-                    ('quasiquote
-                     (("ocaml-alcotest" ('unquote 'ocaml-alcotest))
-                      ("ocamlbuild" ('unquote 'ocamlbuild)))))
+                   ('propagated-inputs ('list 'ocaml-zarith))
+                   ('native-inputs ('list 'ocaml-alcotest 'ocamlbuild))
                    ('home-page "https://example.org/")
                    ('synopsis "Some example package")
                    ('description "This package is just an example.")
diff --git a/tests/pack.scm b/tests/pack.scm
index e9b4c36e0e..98bfedf21c 100644
--- a/tests/pack.scm
+++ b/tests/pack.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
@@ -54,7 +54,7 @@
   ;; Compressor that uses the bootstrap 'gzip'.
   ((@ (guix scripts pack) compressor) "gzip"
    ".gz"
-   #~(#+(file-append %bootstrap-coreutils&co "/bin/gzip") "-6n")))
+   #~(list #+(file-append %bootstrap-coreutils&co "/bin/gzip") "-6n")))
 
 (define %tar-bootstrap %bootstrap-coreutils&co)
 
diff --git a/tests/packages.scm b/tests/packages.scm
index 2a290bc353..2e1ca10dc4 100644
--- a/tests/packages.scm
+++ b/tests/packages.scm
@@ -1,6 +1,8 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
-;;; Copyright © Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+;;; Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -17,13 +19,14 @@
 ;;; You should have received a copy of the GNU General Public License
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
-(define-module (test-packages)
+(define-module (tests packages)
   #:use-module (guix tests)
   #:use-module (guix store)
   #:use-module (guix monads)
   #:use-module (guix grafts)
-  #:use-module ((guix gexp) #:select (local-file local-file-file))
+  #:use-module (guix gexp)
   #:use-module (guix utils)
+  #:use-module ((guix build utils) #:select (tarball?))
   #:use-module ((guix diagnostics)
                 ;; Rename the 'location' binding to allow proper syntax
                 ;; matching when setting the 'location' field of a package.
@@ -32,6 +35,7 @@
                                   (else name))))
   #:use-module ((gcrypt hash) #:prefix gcrypt:)
   #:use-module (guix derivations)
+  #:use-module (guix download)
   #:use-module (guix packages)
   #:use-module (guix grafts)
   #:use-module (guix search-paths)
@@ -51,6 +55,7 @@
   #:use-module (gnu packages version-control)
   #:use-module (gnu packages xml)
   #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-11)
   #:use-module (srfi srfi-26)
   #:use-module (srfi srfi-34)
   #:use-module (srfi srfi-35)
@@ -133,7 +138,7 @@
   ;; inputs.  See <https://bugs.gnu.org/35872>.
   (let* ((dep (dummy-package "dep" (version "2")))
          (old (dummy-package "foo" (version "1")
-                             (propagated-inputs `(("dep" ,dep)))))
+                             (propagated-inputs (list dep))))
          (drv (package-derivation %store old))
          (tx  (mock ((gnu packages) find-best-packages-by-name
                      (const (list old)))
@@ -221,7 +226,7 @@
              (bar (dummy-package "bar" (version "0")
                                  (replacement old)))
              (new (dummy-package "foo" (version "1")
-                                 (inputs `(("bar" ,bar)))))
+                                 (inputs (list bar))))
              (tx  (mock ((gnu packages) find-best-packages-by-name
                          (const (list new)))
                         (transaction-upgrade-entry
@@ -271,13 +276,13 @@
 (test-assert "package-transitive-inputs"
   (let* ((a (dummy-package "a"))
          (b (dummy-package "b"
-              (propagated-inputs `(("a" ,a)))))
+              (propagated-inputs (list a))))
          (c (dummy-package "c"
-              (inputs `(("a" ,a)))))
+              (inputs (list a))))
          (d (dummy-package "d"
               (propagated-inputs `(("x" "something.drv")))))
          (e (dummy-package "e"
-              (inputs `(("b" ,b) ("c" ,c) ("d" ,d))))))
+              (inputs (list b c d)))))
     (and (null? (package-transitive-inputs a))
          (equal? `(("a" ,a)) (package-transitive-inputs b))
          (equal? `(("a" ,a)) (package-transitive-inputs c))
@@ -323,19 +328,19 @@
          (b (dummy-package "b"
               (build-system trivial-build-system)
               (supported-systems '("x" "y"))
-              (inputs `(("a" ,a)))))
+              (inputs (list a))))
          (c (dummy-package "c"
               (build-system trivial-build-system)
               (supported-systems '("y" "z"))
-              (inputs `(("b" ,b)))))
+              (inputs (list b))))
          (d (dummy-package "d"
               (build-system trivial-build-system)
               (supported-systems '("x" "y" "z"))
-              (inputs `(("b" ,b) ("c" ,c)))))
+              (inputs (list b c))))
          (e (dummy-package "e"
               (build-system trivial-build-system)
               (supported-systems '("x" "y" "z"))
-              (inputs `(("d" ,d))))))
+              (inputs (list d)))))
     (list (package-transitive-supported-systems a)
           (package-transitive-supported-systems b)
           (package-transitive-supported-systems c)
@@ -351,13 +356,13 @@
                      (build-system trivial-build-system))))))
     (let* ((a (dummy-package/no-implicit "a"))
            (b (dummy-package/no-implicit "b"
-                (propagated-inputs `(("a" ,a)))))
+                (propagated-inputs (list a))))
            (c (dummy-package/no-implicit "c"
-                (inputs `(("a" ,a)))))
+                (inputs (list a))))
            (d (dummy-package/no-implicit "d"
-                (native-inputs `(("b" ,b)))))
+                (native-inputs (list b))))
            (e (dummy-package/no-implicit "e"
-                (inputs `(("c" ,c) ("d" ,d))))))
+                (inputs (list c d)))))
       (lset= eq?
              (list a b c d e)
              (package-closure (list e))
@@ -380,12 +385,11 @@
        (u (dummy-origin))
        (i (dummy-origin))
        (a (dummy-package "a"))
-       (b (dummy-package "b"
-            (inputs `(("a" ,a) ("i" ,i)))))
+       (b (dummy-package "b" (inputs (list a i))))
        (c (package (inherit b) (source o)))
        (d (dummy-package "d"
             (build-system trivial-build-system)
-            (source u) (inputs `(("c" ,c))))))
+            (source u) (inputs (list c)))))
   (test-assert "package-direct-sources, no source"
     (null? (package-direct-sources a)))
   (test-equal "package-direct-sources, #f source"
@@ -453,7 +457,7 @@
               (supported-systems '("x86_64-linux"))))
          (p (dummy-package "foo"
               (build-system gnu-build-system)
-              (inputs `(("d" ,d)))
+              (inputs (list d))
               (supported-systems '("x86_64-linux" "armhf-linux")))))
     (and (supported-package? p "x86_64-linux")
          (not (supported-package? p "i686-linux"))
@@ -578,6 +582,11 @@
     (build-derivations %store (list drv))
     (call-with-input-file output get-string-all)))
 
+
+;;;
+;;; Source derivation with snippets.
+;;;
+
 (unless (network-reachable?) (test-skip 1))
 (test-equal "package-source-derivation, snippet"
   "OK"
@@ -633,11 +642,96 @@
     (and (build-derivations %store (list (pk 'snippet-drv drv)))
          (call-with-input-file out get-string-all))))
 
+;; Note: lzip is not part of bootstrap-coreutils&co, so is not included to
+;; avoid having to rebuild the world.
+(define compressors '(("gzip"  . "gz")
+                      ("xz"    . "xz")
+                      ("bzip2" . "bz2")
+                      (#f      . #f)))
+
+(for-each
+ (match-lambda
+   ((comp . ext)
+    (unless (network-reachable?) (test-skip 1))
+    (test-equal (string-append "origin->derivation, single file with snippet "
+                               "(compression: " (if comp comp "None") ")")
+      "2 + 2 = 4"
+      (let*-values
+          (((name) "maths")
+           ((compressed-name) (if comp
+                                  (string-append name "." ext)
+                                  name))
+           ((file hash) (test-file %store compressed-name "2 + 2 = 5"))
+           ;; Create an origin using the above computed file and its hash.
+           ((source) (origin
+                       (method url-fetch)
+                       (uri (string-append "file://" file))
+                       (file-name compressed-name)
+                       (patch-inputs `(("tar"   ,%bootstrap-coreutils&co)
+                                       ("xz"    ,%bootstrap-coreutils&co)
+                                       ("bzip2" ,%bootstrap-coreutils&co)
+                                       ("gzip"  ,%bootstrap-coreutils&co)))
+                       (patch-guile %bootstrap-guile)
+                       (modules '((guix build utils)))
+                       (snippet `(substitute* ,name
+                                   (("5") "4")))
+                       (hash (content-hash hash))))
+           ;; Build origin.
+           ((drv) (run-with-store %store (origin->derivation source)))
+           ((out) (derivation->output-path drv)))
+        ;; Decompress the resulting tar.xz and return its content.
+        (and (build-derivations %store (list drv))
+             (if (tarball? out)
+                 (let* ((bin #~(string-append #+%bootstrap-coreutils&co
+                                              "/bin"))
+                        (f (computed-file
+                            name
+                            (with-imported-modules '((guix build utils))
+                              #~(begin
+                                  (use-modules (guix build utils))
+                                  (setenv "PATH" #+bin)
+                                  (invoke "tar" "xvf" #+out)
+                                  (copy-file #+name #$output)))))
+                        (drv (run-with-store %store (lower-object f)))
+                        (_ (build-derivations %store (list drv))))
+                   (call-with-input-file (derivation->output-path drv)
+                     get-string-all))
+                 (call-with-input-file out get-string-all)))))))
+ compressors)
+
 (test-assert "return value"
   (let ((drv (package-derivation %store (dummy-package "p"))))
     (and (derivation? drv)
          (file-exists? (derivation-file-name drv)))))
 
+(test-assert "package-derivation, inputs deduplicated"
+  (let* ((dep (dummy-package "dep"))
+         (p0  (dummy-package "p" (inputs (list dep))))
+         (p1  (package (inherit p0)
+                       (inputs `(("dep" ,(package (inherit dep)))
+                                 ,@(package-inputs p0))))))
+    ;; Here P1 ends up with two non-eq? copies of DEP, under the same label.
+    ;; They should be deduplicated so that P0 and P1 lead to the same
+    ;; derivation rather than P1 ending up with duplicate entries in its
+    ;; '%build-inputs' variable.
+    (string=? (derivation-file-name (package-derivation %store p0))
+              (derivation-file-name (package-derivation %store p1)))))
+
+(test-assert "package-derivation, different system"
+  ;; Make sure the 'system' argument of 'package-derivation' is respected.
+  (let* ((system (if (string=? (%current-system) "x86_64-linux")
+                     "aarch64-linux"
+                     "x86_64-linux"))
+         (drv    (package-derivation %store (dummy-package "p")
+                                     system #:graft? #f)))
+    (define right-system?
+      (mlambdaq (drv)
+        (and (string=? (derivation-system drv) system)
+             (every (compose right-system? derivation-input-derivation)
+                    (derivation-inputs drv)))))
+
+    (right-system? drv)))
+
 (test-assert "package-output"
   (let* ((package  (dummy-package "p"))
          (drv      (package-derivation %store package)))
@@ -665,7 +759,7 @@
 
 (let ((dummy (dummy-package "foo" (inputs `(("x" ,(current-module)))))))
   (test-equal "&package-input-error"
-    (list dummy (current-module))
+    (list dummy `("x" ,(current-module)))
     (guard (c ((package-input-error? c)
                (list (package-error-package c)
                      (package-error-invalid-input c))))
@@ -676,7 +770,7 @@
   (parameterize ((%graft? #f))
     (let* ((dep (dummy-package "dep"))
            (p   (dummy-package "p"
-                  (inputs `(("dep" ,dep "non-existent"))))))
+                  (inputs (list `(,dep "non-existent"))))))
       (guard (c ((derivation-missing-output-error? c)
                  (and (string=? (derivation-missing-output c) "non-existent")
                       (equal? (package-derivation %store dep)
@@ -779,19 +873,23 @@
 
 (test-assert "search paths"
   (let* ((p (make-prompt-tag "return-search-paths"))
+         (t (make-parameter "guile-0"))
          (s (build-system
-             (name 'raw)
-             (description "Raw build system with direct store access")
-             (lower (lambda* (name #:key source inputs system target
-                                   #:allow-other-keys)
-                      (bag
-                        (name name)
-                        (system system) (target target)
-                        (build-inputs inputs)
-                        (build
-                         (lambda* (store name inputs
+              (name 'raw)
+              (description "Raw build system with direct store access")
+              (lower (lambda* (name #:key source inputs system target
+                                    #:allow-other-keys)
+                       (bag
+                         (name name)
+                         (system system) (target target)
+                         (build-inputs inputs)
+                         (build
+                          (lambda* (name inputs
                                          #:key outputs system search-paths)
-                           search-paths)))))))
+                            (if (string=? name (t))
+                                (abort-to-prompt p search-paths)
+                                (gexp->derivation name
+                                                  #~(mkdir #$output))))))))))
          (x (list (search-path-specification
                    (variable "GUILE_LOAD_PATH")
                    (files '("share/guile/site/2.0")))
@@ -816,8 +914,10 @@
                                (lambda (k search-paths)
                                  search-paths))))))
       (and (null? (collect (package-derivation %store a)))
-           (equal? x (collect (package-derivation %store b)))
-           (equal? x (collect (package-derivation %store c)))))))
+           (parameterize ((t "guile-foo-0"))
+             (equal? x (collect (package-derivation %store b))))
+           (parameterize ((t "guile-bar-0"))
+             (equal? x (collect (package-derivation %store c))))))))
 
 (test-assert "package-transitive-native-search-paths"
   (let* ((sp (lambda (name)
@@ -828,12 +928,12 @@
          (p1 (dummy-package "p1" (native-search-paths (sp "PATH1"))))
          (p2 (dummy-package "p2"
                (native-search-paths (sp "PATH2"))
-               (inputs `(("p0" ,p0)))
-               (propagated-inputs `(("p1" ,p1)))))
+               (inputs (list p0))
+               (propagated-inputs (list p1))))
          (p3 (dummy-package "p3"
                (native-search-paths (sp "PATH3"))
-               (native-inputs `(("p0" ,p0)))
-               (propagated-inputs `(("p2" ,p2))))))
+               (native-inputs (list p0))
+               (propagated-inputs (list p2)))))
     (lset= string=?
            '("PATH1" "PATH2" "PATH3")
            (map search-path-specification-variable
@@ -887,7 +987,7 @@
          (dep*  (package (inherit dep) (replacement new)))
          (dummy (dummy-package "dummy"
                   (arguments '(#:implicit-inputs? #f))
-                  (inputs `(("dep" ,dep*))))))
+                  (inputs (list dep*)))))
     (equal? (package-grafts %store dummy)
             (list (graft
                     (origin (package-derivation %store dep))
@@ -919,11 +1019,11 @@
          (dep   (package (inherit new) (version "0.0")))
          (dep*  (package (inherit dep) (replacement new)))
          (prop  (dummy-package "propagated"
-                  (propagated-inputs `(("dep" ,dep*)))
+                  (propagated-inputs (list dep*))
                   (arguments '(#:implicit-inputs? #f))))
          (dummy (dummy-package "dummy"
                   (arguments '(#:implicit-inputs? #f))
-                  (inputs `(("prop" ,prop))))))
+                  (inputs (list prop)))))
     (equal? (package-grafts %store dummy)
             (list (graft
                     (origin (package-derivation %store dep))
@@ -936,16 +1036,16 @@
          (dep  (package (inherit new) (version "0") (replacement new)))
          (p1   (dummy-package "intermediate1"
                  (arguments '(#:implicit-inputs? #f))
-                 (inputs `(("dep" ,dep)))))
+                 (inputs (list dep))))
          (p2   (dummy-package "intermediate2"
                  (arguments '(#:implicit-inputs? #f))
                  ;; Here we copy DEP to have an equivalent package that is not
                  ;; 'eq?' to DEP.  This is similar to what happens with
                  ;; 'package-with-explicit-inputs' & co.
-                 (inputs `(("dep" ,(package (inherit dep)))))))
+                 (inputs (list (package (inherit dep))))))
          (p3   (dummy-package "final"
                  (arguments '(#:implicit-inputs? #f))
-                 (inputs `(("p1" ,p1) ("p2" ,p2))))))
+                 (inputs (list p1 p2)))))
     (equal? (package-grafts %store p3)
             (list (graft
                     (origin (package-derivation %store
@@ -963,8 +1063,7 @@
             (p0* (package (inherit p0) (version "1.1")))
             (p1  (dummy-package "p1"
                    (arguments '(#:implicit-inputs? #f))
-                   (inputs `(("p0" ,p0)
-                             ("p0:lib" ,p0 "lib"))))))
+                   (inputs (list p0 `(,p0 "lib"))))))
     (lset= equal? (pk (package-grafts %store p1))
            (list (graft
                    (origin (package-derivation %store p0))
@@ -1012,7 +1111,7 @@
                                #t)))))
          (p2r (dummy-package "P2"
                 (build-system trivial-build-system)
-                (inputs `(("p1" ,p1)))
+                (inputs (list p1))
                 (arguments
                  `(#:guile ,%bootstrap-guile
                    #:builder (let ((out (assoc-ref %outputs "out")))
@@ -1033,7 +1132,7 @@
                                #t)))))
          (p3  (dummy-package "p3"
                 (build-system trivial-build-system)
-                (inputs `(("p2" ,p2)))
+                (inputs (list p2))
                 (arguments
                  `(#:guile ,%bootstrap-guile
                    #:builder (let ((out (assoc-ref %outputs "out")))
@@ -1091,18 +1190,18 @@
                        (bag (name name) (system system) (target target)
                             (build-inputs native-inputs)
                             (host-inputs inputs)
-                            (build (lambda* (store name inputs
-                                                   #:key system target
-                                                   #:allow-other-keys)
-                                     (build-expression->derivation
-                                      store "foo" '(mkdir %output))))))))
+                            (build (lambda* (name inputs
+                                                  #:key system target
+                                                  #:allow-other-keys)
+                                     (gexp->derivation "foo"
+                                                       #~(mkdir #$output))))))))
          (bs    (build-system
                   (name 'build-system-without-cross-compilation)
                   (description "Does not support cross compilation.")
                   (lower lower)))
          (dep   (dummy-package "dep" (build-system bs)))
          (pkg   (dummy-package "example"
-                  (native-inputs `(("dep" ,dep)))))
+                  (native-inputs (list dep))))
          (do-not-build (lambda (continue store lst . _) lst)))
     (equal? (with-build-handler do-not-build
               (parameterize ((%current-target-system "powerpc64le-linux-gnu")
@@ -1129,9 +1228,9 @@
 (test-assert "package->bag, propagated inputs"
   (let* ((dep    (dummy-package "dep"))
          (prop   (dummy-package "prop"
-                   (propagated-inputs `(("dep" ,dep)))))
+                   (propagated-inputs (list dep))))
          (dummy  (dummy-package "dummy"
-                   (inputs `(("prop" ,prop)))))
+                   (inputs (list prop))))
          (inputs (bag-transitive-inputs (package->bag dummy #:graft? #f))))
     (match (assoc "dep" inputs)
       (("dep" package)
@@ -1144,7 +1243,7 @@
                                        `(("libxml2" ,libxml2))
                                        '()))))
          (pkg (dummy-package "foo"
-                (native-inputs `(("dep" ,dep)))))
+                (native-inputs (list dep))))
          (bag (package->bag pkg (%current-system) "i586-gnu")))
     (equal? (parameterize ((%current-system "x86_64-linux"))
               (bag-transitive-inputs bag))
@@ -1157,19 +1256,20 @@
                                        `(("libxml2" ,libxml2))
                                        '()))))
          (pkg (dummy-package "foo"
-                (native-inputs `(("dep" ,dep)))))
+                (native-inputs (list dep))))
          (bag (package->bag pkg (%current-system) "foo86-hurd")))
     (equal? (parameterize ((%current-target-system "foo64-gnu"))
               (bag-transitive-inputs bag))
             (parameterize ((%current-target-system #f))
               (bag-transitive-inputs bag)))))
 
-(test-assert "bag->derivation"
+(test-assertm "bag->derivation"
   (parameterize ((%graft? #f))
     (let ((bag (package->bag gnu-make))
           (drv (package-derivation %store gnu-make)))
       (parameterize ((%current-system "foox86-hurd")) ;should have no effect
-        (equal? drv (bag->derivation %store bag))))))
+        (mlet %store-monad ((bag-drv (bag->derivation bag)))
+          (return (equal? drv bag-drv)))))))
 
 (test-assert "bag->derivation, cross-compilation"
   (parameterize ((%graft? #f))
@@ -1178,7 +1278,8 @@
            (drv    (package-cross-derivation %store gnu-make target)))
       (parameterize ((%current-system "foox86-hurd") ;should have no effect
                      (%current-target-system "foo64-linux-gnu"))
-        (equal? drv (bag->derivation %store bag))))))
+        (mlet %store-monad ((bag-drv (bag->derivation bag)))
+          (return (equal? drv bag-drv)))))))
 
 (when (or (not (network-reachable?)) (shebang-too-long?))
   (test-skip 1))
@@ -1461,11 +1562,11 @@
                     (build-system trivial-build-system)))
          (glib    (dummy-package "glib"
                     (build-system trivial-build-system)
-                    (propagated-inputs `(("libffi" ,libffi)))))
+                    (propagated-inputs (list libffi))))
          (gobject (dummy-package "gobject-introspection"
                     (build-system trivial-build-system)
-                    (inputs `(("glib" ,glib)))
-                    (propagated-inputs `(("libffi" ,libffi)))))
+                    (inputs (list glib))
+                    (propagated-inputs (list libffi))))
          (rewrite (package-input-rewriting/spec
                    `(("glib" . ,identity)))))
     (and (= (length (package-transitive-inputs gobject))
@@ -1482,11 +1583,11 @@
                     (build-system trivial-build-system)))
          (glib    (dummy-package "glib"
                     (build-system trivial-build-system)
-                    (propagated-inputs `(("libffi" ,libffi)))))
+                    (propagated-inputs (list libffi))))
          (gobject (dummy-package "gobject-introspection"
                     (build-system trivial-build-system)
-                    (inputs `(("glib" ,glib)))
-                    (propagated-inputs `(("libffi" ,libffi)))))
+                    (inputs (list glib))
+                    (propagated-inputs (list libffi))))
          (rewrite (package-input-rewriting `((,glib . ,glib)))))
     (and (= (length (package-transitive-inputs gobject))
             (length (package-transitive-inputs (rewrite gobject))))
@@ -1764,6 +1865,39 @@
   (package-location (specification->package "guile@2"))
   (specification->location "guile@2"))
 
+(test-eq "this-package-input, exists"
+  hello
+  (package-arguments
+   (dummy-package "a"
+     (inputs `(("hello" ,hello)))
+     (arguments (this-package-input "hello")))))
+
+(test-eq "this-package-input, exists in propagated-inputs"
+  hello
+  (package-arguments
+   (dummy-package "a"
+     (propagated-inputs `(("hello" ,hello)))
+     (arguments (this-package-input "hello")))))
+
+(test-eq "this-package-input, does not exist"
+  #f
+  (package-arguments
+   (dummy-package "a"
+     (arguments (this-package-input "hello")))))
+
+(test-eq "this-package-native-input, exists"
+  hello
+  (package-arguments
+   (dummy-package "a"
+     (native-inputs `(("hello" ,hello)))
+     (arguments (this-package-native-input "hello")))))
+
+(test-eq "this-package-native-input, does not exists"
+  #f
+  (package-arguments
+   (dummy-package "a"
+     (arguments (this-package-native-input "hello")))))
+
 (test-end "packages")
 
 ;;; Local Variables:
diff --git a/tests/print.scm b/tests/print.scm
index 3386590d3a..1b24e12f2e 100644
--- a/tests/print.scm
+++ b/tests/print.scm
@@ -60,8 +60,8 @@
                (base32
                 "070pwb7brdcn1mfvplkd56vjc7lbz4iznzkqvfsakvgbv68k71ah"))))
     (build-system (@ (guix build-system gnu) gnu-build-system))
-    (inputs `(("coreutils" ,(@ (gnu packages base) coreutils))
-              ("glibc" ,(@ (gnu packages base) glibc) "debug")))
+    (inputs (list (@ (gnu packages base) coreutils)
+                  `(,(@ (gnu packages base) glibc) "debug")))
     (home-page "http://gnu.org")
     (synopsis "Dummy")
     (description "This is a dummy package.")
diff --git a/tests/pypi.scm b/tests/pypi.scm
index f421d6d9df..bb81e91839 100644
--- a/tests/pypi.scm
+++ b/tests/pypi.scm
@@ -213,13 +213,8 @@ Requires-Dist: pytest (>=3.1.0); extra == 'testing'
                                  ('base32
                                   (? string? hash)))))
                      ('build-system 'python-build-system)
-                     ('propagated-inputs
-                      ('quasiquote
-                       (("python-bar" ('unquote 'python-bar))
-                        ("python-foo" ('unquote 'python-foo)))))
-                     ('native-inputs
-                      ('quasiquote
-                       (("python-pytest" ('unquote 'python-pytest)))))
+                     ('propagated-inputs ('list 'python-bar 'python-foo))
+                     ('native-inputs ('list 'python-pytest))
                      ('home-page "http://example.com")
                      ('synopsis "summary")
                      ('description "summary")
@@ -282,13 +277,8 @@ Requires-Dist: pytest (>=3.1.0); extra == 'testing'
                                ('base32
                                 (? string? hash)))))
                    ('build-system 'python-build-system)
-                   ('propagated-inputs
-                    ('quasiquote
-                     (("python-bar" ('unquote 'python-bar))
-                      ("python-baz" ('unquote 'python-baz)))))
-                   ('native-inputs
-                    ('quasiquote
-                     (("python-pytest" ('unquote 'python-pytest)))))
+                   ('propagated-inputs ('list 'python-bar 'python-baz))
+                   ('native-inputs ('list 'python-pytest))
                    ('home-page "http://example.com")
                    ('synopsis "summary")
                    ('description "summary")
diff --git a/tests/records.scm b/tests/records.scm
index 706bb3dbfd..d014e7a995 100644
--- a/tests/records.scm
+++ b/tests/records.scm
@@ -283,6 +283,44 @@
              (equal? (foo-bar y) 1))              ;promise was already forced
            (eq? (foo-baz y) 'b)))))
 
+(test-assert "define-record-type* & sanitize"
+  (begin
+    (define-record-type* <foo> foo make-foo
+      foo?
+      (bar foo-bar
+           (default "bar")
+           (sanitize (lambda (x) (string-append x "!")))))
+
+    (let* ((p (foo))
+           (q (foo (inherit p)))
+           (r (foo (inherit p) (bar "baz")))
+           (s (foo (bar "baz"))))
+      (and (string=? (foo-bar p) "bar!")
+           (equal? q p)
+           (string=? (foo-bar r) "baz!")
+           (equal? s r)))))
+
+(test-assert "define-record-type* & sanitize & thunked"
+  (let ((sanitized 0))
+    (define-record-type* <foo> foo make-foo
+      foo?
+      (bar foo-bar
+           (default "bar")
+           (sanitize (lambda (x)
+                       (set! sanitized (+ 1 sanitized))
+                       (string-append x "!")))))
+
+    (let ((p (foo)))
+      (and (string=? (foo-bar p) "bar!")
+           (string=? (foo-bar p) "bar!")          ;twice
+           (= sanitized 1)             ;sanitizer was called at init time only
+           (let ((q (foo (bar "baz"))))
+             (and (string=? (foo-bar q) "baz!")
+                  (string=? (foo-bar q) "baz!")   ;twice
+                  (= sanitized 2)
+                  (let ((r (foo (inherit q))))
+                    (and (string=? (foo-bar r) "baz!")
+                         (= sanitized 2)))))))))  ;no re-sanitization
 (test-assert "define-record-type* & wrong field specifier"
   (let ((exp '(begin
                 (define-record-type* <foo> foo make-foo
diff --git a/tests/store.scm b/tests/store.scm
index 3266fa7a82..d77c26192a 100644
--- a/tests/store.scm
+++ b/tests/store.scm
@@ -534,7 +534,8 @@
                  (d (build-expression->derivation
                      %store "foo" `(display ,s)
                      #:guile-for-build
-                     (package-derivation s %bootstrap-guile (%current-system)))))
+                     (package-derivation %store %bootstrap-guile
+                                         (%current-system)))))
             (guard (c ((store-protocol-error? c) #t))
               (build-derivations %store (list d))))))))
    "Here’s a Greek letter: λ."))
diff --git a/tests/style.scm b/tests/style.scm
new file mode 100644
index 0000000000..ada9197fc1
--- /dev/null
+++ b/tests/style.scm
@@ -0,0 +1,366 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (tests-style)
+  #:use-module (guix packages)
+  #:use-module (guix scripts style)
+  #:use-module ((guix utils) #:select (call-with-temporary-directory))
+  #:use-module ((guix build utils) #:select (substitute*))
+  #:use-module (guix diagnostics)
+  #:use-module (gnu packages acl)
+  #:use-module (gnu packages multiprecision)
+  #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-64)
+  #:use-module (ice-9 match)
+  #:use-module (ice-9 rdelim)
+  #:use-module (ice-9 pretty-print))
+
+(define (call-with-test-package inputs proc)
+  (call-with-temporary-directory
+   (lambda (directory)
+     (call-with-output-file (string-append directory "/my-packages.scm")
+       (lambda (port)
+         (pretty-print
+          `(begin
+             (define-module (my-packages)
+               #:use-module (guix)
+               #:use-module (guix licenses)
+               #:use-module (gnu packages acl)
+               #:use-module (gnu packages base)
+               #:use-module (gnu packages multiprecision)
+               #:use-module (srfi srfi-1))
+
+             (define base
+               (package
+                 (inherit coreutils)
+                 (inputs '())
+                 (native-inputs '())
+                 (propagated-inputs '())))
+
+             (define (sdl-union . lst)
+               (package
+                 (inherit base)
+                 (name "sdl-union")))
+
+             (define-public my-coreutils
+               (package
+                 (inherit base)
+                 ,@inputs
+                 (name "my-coreutils"))))
+          port)))
+
+     (proc directory))))
+
+(define test-directory
+  ;; Directory where the package definition lives.
+  (make-parameter #f))
+
+(define-syntax-rule (with-test-package fields exp ...)
+  (call-with-test-package fields
+    (lambda (directory)
+      (define file
+        (string-append directory "/my-packages.scm"))
+
+      ;; Run as a separate process to make sure FILE is reloaded.
+      (system* "guix" "style" "-L" directory "my-coreutils")
+      (system* "cat" file)
+
+      (load file)
+      (parameterize ((test-directory directory))
+        exp ...))))
+
+(define* (read-lines port line #:optional (count 1))
+  "Read COUNT lines from PORT, starting from LINE."
+  (let loop ((lines '())
+             (count count))
+    (cond ((< (port-line port) (- line 1))
+           (read-char port)
+           (loop lines count))
+          ((zero? count)
+           (string-concatenate-reverse lines))
+          (else
+           (match (read-line port 'concat)
+             ((? eof-object?)
+              (loop lines 0))
+             (line
+              (loop (cons line lines) (- count 1))))))))
+
+(define* (read-package-field package field #:optional (count 1))
+  (let* ((location (package-field-location package field))
+         (file (location-file location))
+         (line (location-line location)))
+    (call-with-input-file (if (string-prefix? "/" file)
+                              file
+                              (string-append (test-directory) "/"
+                                             file))
+      (lambda (port)
+        (read-lines port line count)))))
+
+
+(test-begin "style")
+
+(test-equal "nothing to rewrite"
+  '()
+  (with-test-package '()
+    (package-direct-inputs (@ (my-packages) my-coreutils))))
+
+(test-equal "input labels, mismatch"
+  (list `(("foo" ,gmp) ("bar" ,acl))
+        "      (inputs `((\"foo\" ,gmp) (\"bar\" ,acl)))\n")
+  (with-test-package '((inputs `(("foo" ,gmp) ("bar" ,acl))))
+    (list (package-direct-inputs (@ (my-packages) my-coreutils))
+          (read-package-field (@ (my-packages) my-coreutils) 'inputs))))
+
+(test-equal "input labels, simple"
+  (list `(("gmp" ,gmp) ("acl" ,acl))
+        "      (inputs (list gmp acl))\n")
+  (with-test-package '((inputs `(("gmp" ,gmp) ("acl" ,acl))))
+    (list (package-direct-inputs (@ (my-packages) my-coreutils))
+          (read-package-field (@ (my-packages) my-coreutils) 'inputs))))
+
+(test-equal "input labels, long list with one item per line"
+  (list (concatenate (make-list 4 `(("gmp" ,gmp) ("acl" ,acl))))
+        "\
+        (list gmp
+              acl
+              gmp
+              acl
+              gmp
+              acl
+              gmp
+              acl))\n")
+  (with-test-package '((inputs `(("gmp" ,gmp) ("acl" ,acl)
+                                 ("gmp" ,gmp) ("acl" ,acl)
+                                 ("gmp" ,gmp) ("acl" ,acl)
+                                 ("gmp" ,gmp) ("acl" ,acl))))
+    (list (package-direct-inputs (@ (my-packages) my-coreutils))
+          (read-package-field (@ (my-packages) my-coreutils) 'inputs 8))))
+
+(test-equal "input labels, sdl-union"
+  "\
+        (list gmp acl
+              (sdl-union 1 2 3 4)))\n"
+  (with-test-package '((inputs `(("gmp" ,gmp) ("acl" ,acl)
+                                 ("sdl-union" ,(sdl-union 1 2 3 4)))))
+    (read-package-field (@ (my-packages) my-coreutils) 'inputs 2)))
+
+(test-equal "input labels, output"
+  (list `(("gmp" ,gmp "debug") ("acl" ,acl))
+        "      (inputs (list `(,gmp \"debug\") acl))\n")
+  (with-test-package '((inputs `(("gmp" ,gmp "debug") ("acl" ,acl))))
+    (list (package-direct-inputs (@ (my-packages) my-coreutils))
+          (read-package-field (@ (my-packages) my-coreutils) 'inputs))))
+
+(test-equal "input labels, prepend"
+  (list `(("gmp" ,gmp) ("acl" ,acl))
+        "\
+        (modify-inputs (package-propagated-inputs coreutils)
+          (prepend gmp acl)))\n")
+  (with-test-package '((inputs `(("gmp" ,gmp) ("acl" ,acl)
+                                 ,@(package-propagated-inputs coreutils))))
+    (list (package-inputs (@ (my-packages) my-coreutils))
+          (read-package-field (@ (my-packages) my-coreutils) 'inputs 2))))
+
+(test-equal "input labels, prepend + delete"
+  (list `(("gmp" ,gmp) ("acl" ,acl))
+        "\
+        (modify-inputs (package-propagated-inputs coreutils)
+          (delete \"gmp\")
+          (prepend gmp acl)))\n")
+  (with-test-package '((inputs `(("gmp" ,gmp)
+                                 ("acl" ,acl)
+                                 ,@(alist-delete "gmp"
+                                                 (package-propagated-inputs coreutils)))))
+    (list (package-inputs (@ (my-packages) my-coreutils))
+          (read-package-field (@ (my-packages) my-coreutils) 'inputs 3))))
+
+(test-equal "input labels, prepend + delete multiple"
+  (list `(("gmp" ,gmp) ("acl" ,acl))
+        "\
+        (modify-inputs (package-propagated-inputs coreutils)
+          (delete \"foo\" \"bar\" \"baz\")
+          (prepend gmp acl)))\n")
+  (with-test-package '((inputs `(("gmp" ,gmp)
+                                 ("acl" ,acl)
+                                 ,@(fold alist-delete
+                                         (package-propagated-inputs coreutils)
+                                         '("foo" "bar" "baz")))))
+    (list (package-inputs (@ (my-packages) my-coreutils))
+          (read-package-field (@ (my-packages) my-coreutils) 'inputs 3))))
+
+(test-equal "input labels, replace"
+  (list '()                                 ;there's no "gmp" input to replace
+        "\
+        (modify-inputs (package-propagated-inputs coreutils)
+          (replace \"gmp\" gmp)))\n")
+  (with-test-package '((inputs `(("gmp" ,gmp)
+                                 ,@(alist-delete "gmp"
+                                                 (package-propagated-inputs coreutils)))))
+    (list (package-inputs (@ (my-packages) my-coreutils))
+          (read-package-field (@ (my-packages) my-coreutils) 'inputs 2))))
+
+(test-equal "input labels, 'safe' policy"
+  (list `(("gmp" ,gmp) ("acl" ,acl))
+        "\
+      (inputs (list gmp acl))\n")
+  (call-with-test-package '((inputs `(("GMP" ,gmp) ("ACL" ,acl)))
+                            (arguments '()))      ;no build system arguments
+    (lambda (directory)
+      (define file
+        (string-append directory "/my-packages.scm"))
+
+      (system* "guix" "style" "-L" directory "my-coreutils"
+               "--input-simplification=safe")
+
+      (load file)
+      (list (package-inputs (@ (my-packages) my-coreutils))
+            (read-package-field (@ (my-packages) my-coreutils) 'inputs)))))
+
+(test-equal "input labels, 'safe' policy, nothing changed"
+  (list `(("GMP" ,gmp) ("ACL" ,acl))
+        "\
+      (inputs `((\"GMP\" ,gmp) (\"ACL\" ,acl)))\n")
+  (call-with-test-package '((inputs `(("GMP" ,gmp) ("ACL" ,acl)))
+                            ;; Non-empty argument list, so potentially unsafe
+                            ;; input simplification.
+                            (arguments
+                             '(#:configure-flags
+                               (assoc-ref %build-inputs "GMP"))))
+    (lambda (directory)
+      (define file
+        (string-append directory "/my-packages.scm"))
+
+      (system* "guix" "style" "-L" directory "my-coreutils"
+               "--input-simplification=safe")
+
+      (load file)
+      (list (package-inputs (@ (my-packages) my-coreutils))
+            (read-package-field (@ (my-packages) my-coreutils) 'inputs)))))
+
+(test-equal "input labels, margin comment"
+  (list `(("gmp" ,gmp))
+        `(("acl" ,acl))
+        "      (inputs (list gmp)) ;margin comment\n"
+        "      (native-inputs (list acl)) ;another one\n")
+  (call-with-test-package '((inputs `(("gmp" ,gmp)))
+                            (native-inputs `(("acl" ,acl))))
+    (lambda (directory)
+      (define file
+        (string-append directory "/my-packages.scm"))
+
+      (substitute* file
+        (("\"gmp\"(.*)$" _ rest)
+         (string-append "\"gmp\"" (string-trim-right rest)
+                        " ;margin comment\n"))
+        (("\"acl\"(.*)$" _ rest)
+         (string-append "\"acl\"" (string-trim-right rest)
+                        " ;another one\n")))
+      (system* "cat" file)
+
+      (system* "guix" "style" "-L" directory "my-coreutils")
+
+      (load file)
+      (list (package-inputs (@ (my-packages) my-coreutils))
+            (package-native-inputs (@ (my-packages) my-coreutils))
+            (read-package-field (@ (my-packages) my-coreutils) 'inputs)
+            (read-package-field (@ (my-packages) my-coreutils) 'native-inputs)))))
+
+(test-equal "input labels, margin comment on long list"
+  (list (concatenate (make-list 4 `(("gmp" ,gmp) ("acl" ,acl))))
+        "\
+        (list gmp ;margin comment
+              acl
+              gmp ;margin comment
+              acl
+              gmp ;margin comment
+              acl
+              gmp ;margin comment
+              acl))\n")
+  (call-with-test-package '((inputs `(("gmp" ,gmp) ("acl" ,acl)
+                                      ("gmp" ,gmp) ("acl" ,acl)
+                                      ("gmp" ,gmp) ("acl" ,acl)
+                                      ("gmp" ,gmp) ("acl" ,acl))))
+    (lambda (directory)
+      (define file
+        (string-append directory "/my-packages.scm"))
+
+      (substitute* file
+        (("\"gmp\"(.*)$" _ rest)
+         (string-append "\"gmp\"" (string-trim-right rest)
+                        " ;margin comment\n")))
+      (system* "cat" file)
+
+      (system* "guix" "style" "-L" directory "my-coreutils")
+
+      (load file)
+      (list (package-inputs (@ (my-packages) my-coreutils))
+            (read-package-field (@ (my-packages) my-coreutils) 'inputs 8)))))
+
+(test-equal "input labels, line comment"
+  (list `(("gmp" ,gmp) ("acl" ,acl))
+        "\
+      (inputs (list gmp
+                    ;; line comment!
+                    acl))\n")
+  (call-with-test-package '((inputs `(("gmp" ,gmp) ("acl" ,acl))))
+    (lambda (directory)
+      (define file
+        (string-append directory "/my-packages.scm"))
+
+      (substitute* file
+        ((",gmp\\)(.*)$" _ rest)
+         (string-append ",gmp)\n   ;; line comment!\n" rest)))
+
+      (system* "guix" "style" "-L" directory "my-coreutils")
+
+      (load file)
+      (list (package-inputs (@ (my-packages) my-coreutils))
+            (read-package-field (@ (my-packages) my-coreutils) 'inputs 3)))))
+
+(test-equal "input labels, modify-inputs and margin comment"
+  (list `(("gmp" ,gmp) ("acl" ,acl) ("mpfr" ,mpfr))
+        "\
+        (modify-inputs (package-propagated-inputs coreutils)
+          (prepend gmp ;margin comment
+                   acl ;another one
+                   mpfr)))\n")
+  (call-with-test-package '((inputs
+                             `(("gmp" ,gmp) ("acl" ,acl) ("mpfr" ,mpfr)
+                               ,@(package-propagated-inputs coreutils))))
+    (lambda (directory)
+      (define file
+        (string-append directory "/my-packages.scm"))
+
+      (substitute* file
+        ((",gmp\\)(.*)$" _ rest)
+         (string-append ",gmp) ;margin comment\n" rest))
+        ((",acl\\)(.*)$" _ rest)
+         (string-append ",acl) ;another one\n" rest)))
+
+      (system* "guix" "style" "-L" directory "my-coreutils")
+
+      (load file)
+      (list (package-inputs (@ (my-packages) my-coreutils))
+            (read-package-field (@ (my-packages) my-coreutils) 'inputs 4)))))
+
+(test-end)
+
+;; Local Variables:
+;; eval: (put 'with-test-package 'scheme-indent-function 1)
+;; eval: (put 'call-with-test-package 'scheme-indent-function 1)
+;; End:
diff --git a/tests/utils.scm b/tests/utils.scm
index 7fcbb25552..648e91f242 100644
--- a/tests/utils.scm
+++ b/tests/utils.scm
@@ -3,6 +3,7 @@
 ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2016 Mathieu Lirzin <mthl@gnu.org>
 ;;; Copyright © 2021 Simon Tournier <zimon.toutoune@gmail.com>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -289,6 +290,45 @@ skip these tests."
    (string-closest "hello" '("kikoo" "helo" "hihihi" "halo"))
    (string-closest "hello" '("aaaaa" "12345" "hellohello" "h"))))
 
+(test-equal "target-linux?"
+  '(#t #f #f #t)
+  (map target-linux?
+       '("i686-linux-gnu" "i686-w64-mingw32"
+         ;; Checking that "gnu" is present is not sufficient,
+         ;; as GNU/Hurd exists.
+         "i686-pc-gnu"
+         ;; Some targets have a suffix.
+         "arm-linux-gnueabihf")))
+
+(test-equal "target-mingw?"
+  '(#f #f #t)
+  (map target-mingw?
+       '("i686-linux-gnu" "i686-pc-gnu"
+         "i686-w64-mingw32")))
+
+(test-equal "target-x86-32?"
+  '(#f #f #f #t #t #t #t #f)
+  ;; These are (according to Wikipedia) two RISC architectures
+  ;; by Intel and presumably not compatible with the x86-32 series.
+  (map target-x86-32?
+       '("i860-gnu" "i960-gnu"
+         ;; This is a 16-bit architecture
+         "i286-gnu"
+         ;; These are part of the x86-32 series.
+         "i386-gnu" "i486-gnu" "i586-gnu" "i686-gnu"
+         ;; Maybe this one will exist some day, but not yet.
+         "i786-gnu")))
+
+(test-equal "target-x86-64?"
+  '(#t #f #f #f)
+  (map target-x86-64?
+       `("x86_64-linux-gnu" "i386-linux-gnu"
+         ;; Just because it includes "64" doesn't make it 64-bit.
+         "aarch64-linux-gnu"
+         ;; Note that (expt 2 109) in decimal notation starts with 64.
+         ;; However, it isn't 32-bit.
+         ,(format #f "x86_~a-linux-gnu" (expt 2 109)))))
+
 (test-end)
 
 (false-if-exception (delete-file temp-file))