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2024-01-22gnu: cross-gcc-toolchain: Use fixed name.Jean-Pierre De Jesus DIAZ
* gnu/packages/cross-base.scm (cross-gcc-toolchain) <name>: Always use gcc-cross- prefix regardless of TARGET having a C standard library or not. Change-Id: I5cbe89c61e5bd324a385db17c27131ea5ef75669
2023-12-11gnu: Add cross-gcc-toolchain procedure.Jean-Pierre De Jesus DIAZ
* gnu/packages/cross-base.scm (cross-gcc-toolchain/implementation, cross-gcc-toolchain): New procedures. Change-Id: I994067eac094d0a50a7399e61bda944eded9187f Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
2023-12-11gnu: cross-gcc: Only C and C++ for AVR.Jean-Pierre De Jesus DIAZ
* gnu/packages/cross-base.scm (cross-gcc-arguments) <configure-flags> [target-avr?]: Add --enable-languages=c,c++. Change-Id: I1d63bb1b0a3074b9ff8650c5afb93777183c0ea4 Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
2023-12-11gnu: cross-gcc: Find AVR Libc files.Jean-Pierre De Jesus DIAZ
* gnu/packages/cross-base.scm (cross-gcc-arguments) <configure-flags>: Add --with-native-system-header-dir for AVR. <make-flags>: Add target prefix to /lib to find AVR library. Change-Id: Ie9cae338da241fe987f53463aa3774a890e2af9a Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
2023-12-11gnu: cross-gcc: Handle AVR inputs.Jean-Pierre De Jesus DIAZ
* gnu/packages/cross-base.scm (cross-gcc)[native-inputs]: Add case to handle AVR. Change-Id: I1ac38b721ed807302747cecb5fb1f6075694a01a Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
2023-12-11gnu: cross-libc: Add AVR Libc support.Jean-Pierre De Jesus DIAZ
* gnu/packages/avr.scm (make-avr-libc/implementation)[arguments]: Add avr target parameter and disable implicit cross inputs. [native-inputs]: Rename avr-gcc and avr-binutils to cross-gcc and cross-binutils to keep consistency with gnu-build-system. * gnu/packages/cross-base.scm (cross-libc): Add case for avr. Change-Id: I6b087946d1287a82fac61c48c513e7f2d2184794 Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
2023-12-11gnu: cross-gcc: Handle target include paths.Jean-Pierre De Jesus DIAZ
* gnu/packages/cross-base.scm (cross-gcc-search-paths): New procedure. (cross-gcc)[search-paths]: Convert to and use cross-gcc-search-paths procedure. Change-Id: Id306782eaf928d05cd005b9539087ed631506b5b Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
2023-12-11gnu: cross-gcc: Enable multilib for AVR.Jean-Pierre De Jesus DIAZ
* gnu/build/cross-toolchain.scm (patch-multilib-shebang): New procedure. * gnu/packages/avr.scm (make-avr-gcc): Remove uneeded phases and flags for multilib. * gnu/packages/cross-base (cross-gcc-arguments) <#:configure-flags> [target-avr?]: Remove --disable-multilib and add --enable-multilib. Change-Id: Id68d803057ac898f0a670f10487b08bf0891ab0b Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
2023-12-11gnu: cross-libc: Return #f if no libc available.Jean-Pierre De Jesus DIAZ
* gnu/packages/cross-base.scm (cross-libc): Return #f if no libc is available for the given TARGET. Change-Id: I17d19716373dd5704bb70d805437738fd29bd96b Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
2023-07-13gnu: hurd-minimal: Include libshouldbeinlibc and libstore.Janneke Nieuwenhuizen
* gnu/packages/hurd.scm (hurd-minimal)[inputs]: Add gnumach-headers. [arguments]: Rewrite to include libshouldbeinlibc and libstore. * gnu/packages/cross-base.scm (cross-kernel-headers*): Update xhurd-minimal accordingly: Add xgnumach-headers, add them to cpath, use gexps for modify-phases, add delete-shared-target phase. Signed-off-by: Josselin Poiret <dev@jpoiret.xyz>
2023-07-13gnu: Add libc-for-target and glibc/hurd.Josselin Poiret
* gnu/packages/patches/glibc-2.37-hurd-clock_t_centiseconds.patch * gnu/packages/patches/glibc-2.37-hurd-local-clock_gettime_MONOTONIC.patch * gnu/packages/patches/glibc-2.37-versioned-locpath.patch: New patches. * gnu/local.mk (dist_patch_DATA): Register them. * gnu/packages/base.scm (glibc/hurd, libc-for-target): New variables. (glibc/hurd-headers): Use glibc/hurd. * gnu/packages/commencement.scm (glibc-final-with-bootstrap-bash)[outputs, source, arguments] (glibc-final)[source]: Use libc-for-target instead of glibc. * gnu/packages/cross-base.scm (cross-libc/deprecated, cross-libc*): Use libc-for-target. This part fixes https://issues.guix.gnu.org/63641#25 * gnu/packages/commencement.scm (%final-inputs): Change to memoized lambda taking "system". * gnu/packages/commencement.scm (canonical-package): Likewise, and update user, passing (%current-system). (make-gcc-toolchain): Update user, passing (%current-system). * gnu/packages/base.scm (%final-inputs): Likewise. * guix/scripts/refresh.scm (options->update-specs): Likewise. * guix/build-system/gnu.scm (standard-packages): Add optional "system" parameter. (lower): Update caller. Co-authored-by: Ludovic Courtès <ludo@gnu.org> Co-authored-by: Janneke Nieuwenhuizen <janneke@gnu.org>
2023-07-13gnu: gnumach-headers: Cross-build without relying on x86.Josselin Poiret
* gnu/packages/hurd.scm (gnumach-headers): Remove configure flags where we say the builder is running x86. * gnu/packages/cross-base.scm (cross-gnumach-headers): Work around limitation of build system, by manually changing the target host_cpu without relying on --host, because we don't have a working cross-compiler yet.
2023-07-13gnu: glibc/hurd-headers: Properly cross-build.Josselin Poiret
* gnu/packages/base.scm (glibc/hurd-headers): Rely on cross-mig, and remove hardcoded configure flag `--host=i586-pc-gnu`. * gnu/packages/cross-base.scm (cross-kernel-headers*): Add `--host` and `--build` configure flags.
2023-03-30gnu: cross-base: Removed useless inputs to xhurd-core-headers.Josselin Poiret
* gnu/packages/cross-base.scm (cross-kernel-headers*): Remove them. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2023-03-30gnu: cross-base: Add cross arguments to hurd derivatives.Josselin Poiret
* gnu/packages/cross-base.scm (cross-kernel-headers*): Add --build and --host to xhurd-headers and xhurd-minimal. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2023-03-30gnu: cross-base: Factor out cross-mig.Josselin Poiret
* gnu/packages/cross-base.scm (cross-mig): New exported procedure. (cross-gnumach-headers): New procedure. (cross-kernel-headers*): Factor them out. (cross-libc*): Use them there. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2023-03-30gnu: cross-base: Use gexps for 'cross-gcc-arguments'.Ludovic Courtès
* gnu/packages/cross-base.scm (cross-gcc-arguments): Switch to gexps.
2023-03-30gnu: glibc: Work around broken GNU Mach header detection.Ludovic Courtès
* gnu/packages/base.scm (%glibc/hurd-configure-flags): New variable. (glibc)[arguments]: Use it. (glibc/hurd-headers)[arguments]: likewise. * gnu/packages/cross-base.scm (cross-libc*): Likewise. Co-authored-by: Josselin Poiret <dev@jpoiret.xyz>
2023-03-04gnu: cross-base: Inherit arguments from 'mig'.Ludovic Courtès
That way, 'xmig' inherits the 'avoid-perl-dependency' build phase. * gnu/packages/hurd.scm (mig)[arguments]: In 'avoid-perl-dependency', use 'find-files' to locate the "mig" executable(s). * gnu/packages/cross-base.scm (cross-kernel-headers*)[xmig]: Use 'substitute-keyword-arguments'.
2023-03-04gnu: cross-base: Remove input labels for GNU Mach and MiG.Ludovic Courtès
* gnu/packages/cross-base.scm (cross-kernel-headers*)[xgnumach-headers] [xmig]: Remove input labels; use gexps and 'modify-inputs'. [xgnumach-headers-name]: New variable.
2023-02-16gnu: Remove unneeded module imports.Efraim Flashner
* gnu/packages/abiword.scm, * gnu/packages/ada.scm, * gnu/packages/agda.scm, * gnu/packages/backup.scm, * gnu/packages/barrier.scm, * gnu/packages/bioinformatics.scm, * gnu/packages/bootstrap.scm, * gnu/packages/bqn.scm, * gnu/packages/c.scm, * gnu/packages/chemistry.scm, * gnu/packages/coq.scm, * gnu/packages/cross-base.scm, * gnu/packages/databases.scm, * gnu/packages/emacs-xyz.scm, * gnu/packages/enlightenment.scm, * gnu/packages/games.scm, * gnu/packages/geo.scm, * gnu/packages/ghostscript.scm, * gnu/packages/gl.scm, * gnu/packages/golang.scm, * gnu/packages/jami.scm, * gnu/packages/java-maths.scm, * gnu/packages/kde-frameworks.scm, * gnu/packages/kde-plasma.scm, * gnu/packages/language.scm, * gnu/packages/libreoffice.scm, * gnu/packages/linphone.scm, * gnu/packages/lisp.scm, * gnu/packages/llvm.scm, * gnu/packages/machine-learning.scm, * gnu/packages/minetest.scm, * gnu/packages/monitoring.scm, * gnu/packages/nfs.scm, * gnu/packages/ocr.scm, * gnu/packages/opencl.scm, * gnu/packages/pdf.scm, * gnu/packages/python-xyz.scm, * gnu/packages/racket.scm, * gnu/packages/rust.scm, * gnu/packages/syncthing.scm, * gnu/packages/syndication.scm, * gnu/packages/telegram.scm, * gnu/packages/vulkan.scm, * gnu/packages/web-browsers.scm, * gnu/packages/web.scm, * gnu/packages/webkit.scm: Remove some unecessary module imports.
2023-01-03gnu: cross-base: Standardize API to use keyword arguments.Maxim Cournoyer
This makes it possible to invoke the procedures with a single or fewer optional arguments. * gnu/packages/cross-base.scm (contains-keyword?): New procedure. (cross-binutils): Dispatch to either... (cross-binutils/deprecated): ... this renamed procedure or ... (cross-binutils*): ... this new procedure. (cross-kernel-headers, cross-libc/deprecated): Likewise.
2022-12-07gnu: cross-base: Fix some indentation problems.Maxim Cournoyer
* gnu/packages/cross-base.scm (cross-binutils): Fix indentation. (cross-kernel-headers): Align 'inherit' fields of nested package variables. (cross-gcc): Fix indentation.
2022-09-20gnu: cross: Add default configure-flags.Efraim Flashner
Reported by Arun Isaac <arunisaac@systemreboot.net>. * gnu/packages/cross-base.scm (cross)[arguments]: Add a default for configure-flags so '--target=' is always added.
2022-05-30gnu: GCC: Add cross environment variables patch to GCC 12.Morgan Smith
* gnu/packages/patches/gcc-12-cross-environment-variables.patch : New file. * gnu/local.mk (dist_patch_DATA): Add gcc-12-cross-environment-variables.patch. * gnu/packages/cross-base.scm (cross-gcc)[source](patches): Apply the patch. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2022-05-25Move (gnu platform) and (gnu platforms ...) to guix/.Josselin Poiret
* gnu/platform.scm: * gnu/platforms/arm.scm: * gnu/platforms/hurd.scm: * gnu/platforms/mips.scm: * gnu/platforms/powerpc.scm: * gnu/platforms/riscv.scm: * gnu/platforms/s390.scm: * gnu/platforms/x86.scm: Move to guix/. * Makefile.am: * doc/guix.texi (Porting to a New Platform): * etc/release-manifest.scm: * gnu/ci.scm: * gnu/image.scm: * gnu/local.mk: * gnu/packages/bioinformatics.scm: * gnu/packages/bootstrap.scm: * gnu/packages/cross-base.scm: * gnu/packages/instrumentation.scm: * gnu/packages/linux.scm: * gnu/system/image.scm: * gnu/system/images/hurd.scm: * gnu/system/images/novena.scm: * gnu/system/images/pine64.scm: * gnu/system/images/pinebook-pro.scm: * gnu/system/images/rock64.scm: * guix/scripts/build.scm: * guix/scripts/system.scm: * guix/self.scm: Update (gnu platform...) to (guix platform...). Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
2022-05-22linux: Remove system->linux-architecture procedure.Mathieu Othacehe
* gnu/packages/linux.scm (system->linux-architecture): Remove it. (make-linux-libre-headers*, make-linux-libre*): Adapt them. * guix/build-system/linux-module.scm (system->arch): Adapt it. * gnu/packages/instrumentation.scm (uftrace): Ditto. * gnu/packages/cross-base.scm (cross-kernel-headers): Ditto. * gnu/packages/bioinformatics.scm (ncbi-vdb): Ditto. * doc/guix.texi (Porting to a new platform): Update it.
2022-03-16gnu: cross-base: Don't specify mingw --with-newlibCarl Dong
Previous to this commit, we added a --with-newlib configure flag to cross-gcc when cross-newlib?, but cross-newlib? is true only when target-mingw?. It turns out that specifying --with-newlib disables the GLIBCXX_CROSSCONFIG check, which is used to detect _GLIBCXX_HAVE__WFOPEN, which is required in C++17 std::filesystem for mingw-w64 systems. Additional context: In gnu/packages/embedded.scm, --with-newlib is specified explicitly when we're actually using newlib, which seems like the correct way of handling it. Situation in other distros: - Debian's gcc-mingw-w64 doesn't specify --with-newlib - Fedora's mingw64-gcc-c++ explicitly specifies --without-newlib Chesterton's fence: Chatting with janneke, who originally added this mechanism, reveals that this flag is not only no longer required, but also that removing it doesn't break his guile-mingw builds. See IRC logs of #guix for 2022-02-15. * gnu/packages/cross-base.scm (cross-gcc-arguments): Don't check for and specify --with-newlib. (cross-libc): Check for mingw and use mingw-w64 directly. (cross-newlib?): Remove, unexport. (native-libc): Remove.
2022-02-07gnu: Disable compressed debug sections for mingw-w64Carl Dong
The newly introduced --enable-compressed-debug-section=all configure flag in the base binutils package makes the mingw-w64 build system unusable. For example: $ guix build --target=x86_64-w64-mingw32 hello and $ guix build mingw-w64-x86_64-winpthreads Will fail to build with an error: "x86_64-w64-mingw32-ld: final link failed: bad value" Turning off this flag seems to fix the problem, but perhaps it'd also be worthwhile to investigate the root cause. * gnu/packages/cross-base.scm (cross-binutils): When building for mingw targets, append "--enable-compressed-debug-section=no" to configure flags.
2021-07-14utils: Define 'target-hurd?' predicate.Maxime Devos
It behaves similarily to the other target-...? procedures. The usage of hurd-triplet? / target-hurd? in libgc appears incorrect to me, as (%current-system) is normally never false. * gnu/packages/hurd.scm (hurd-triplet?): Move to ... * guix/util.scm (target-hurd?): ... here, let its argument default to (%current-target-system) or (%current-system), and write a docstring. * gnu/packages/hurd.scm (hurd-target?, hurd-system?): Use target-hurd? instead of hurd-triplet?. * gnu/packages/bdw-gc.scm (libgc): Likewise. * gnu/packages/cross-base.scm (cross-libc)[arguments]<#:configure-flags>: Likewise. (cross-libc)[arguments]<#:phases>: Likewise. (cross-libc)[arguments]<#:native-inputs>: Likewise. * gnu/packages/make-boostrap.scm (%glibc-stripped)[inputs]: Likewise. Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
2021-06-24gnu: Simplify the use of --with-long-double-128.Chris Marusich
Fixes <https://bugs.gnu.org/48825>. In short, this change adds the hard-coded "--with-long-double-128" configure option in one place and removes it from two other places. This changes and simplifies the use of this option for various architectures that start with the string "powerpc". * gnu/packages/gcc.scm (gcc-configure-flags-for-triplet): Add a clause for targets starting with "powerpc64le-" or "powerpc-" which adds the "--with-long-double-128" option. This causes any package using this procedure to be built using this new option on these architectures. In particular, this affects the gcc package and the gcc-final package, in addition to all the other versions of GCC defined in (gnu packages gcc). * gnu/packages/commencement.scm (gcc-boot0)[#:configure-flags]: Remove the code that adds the "--with-long-double-128" configure option for all architectures starting with "powerpc", since it is now redundant on the architectures where it is needed. The gcc-boot0 package uses (and adds to) the gcc package's configure options. This means that the above change in gcc.scm is sufficient to ensure that the gcc-boot0 package's configure options will include "--with-long-double-128" on powerpc64le and powerpc architectures. Additionally, since the option is apparently not required on the big-endian powerpc64 architecture, this change also has the nice effect of omitting the option in that case. * gnu/packages/cross-base.scm (cross-gcc-arguments)[#:configure-flags]: Remove the code that adds the "--with-long-double-128" configure option for powerpc64le, since it is now redundant. The cross-gcc-arguments procedure uses (and adds to) the configure options of its xgcc argument (a package). This means that regardless of which gcc from gcc.scm is used as the xgcc, the above change in gcc.scm is sufficient to ensure that the cross-gcc-arguments procedure's configure options will include "--with-long-double-128" on the powerpc64le and powerpc architectures.
2021-06-13gnu: GCC: Switch to GCC 10.Marius Bakke
* gnu/packages/patches/gcc-cross-gxx-include-dir.patch: New file. * gnu/packages/patches/gcc-10-cross-environment-variables.patch: New file. * gnu/packages/gcc.scm (gcc): Point to GCC-10. (gcc-objc): Point to GCC-OBJC-10. (gcc-objc++): Point to GCC-OBJC++-10. * gnu/packages/cross-base.scm (cross-gcc)[source](patches): Apply the new patches.
2021-05-09gnu: cross-kernel-headers: Fix build.Marius Bakke
This fixes a regression introduced in 0e2251fcf8189a4f642074d3aa898221b29c3a55, as "make headers_check" does not actually build the headers in newer versions, instead "make headers_install" built them as a side effect. * gnu/packages/cross-base.scm (cross-kernel-headers)[arguments]: Adjust build phase to call the correct Make target. While at it, migrate to MODIFY-PHASES.
2021-04-16Merge remote-tracking branch 'origin/master' into core-updatesEfraim Flashner
Conflicts: gnu/local.mk gnu/packages/boost.scm gnu/packages/chez.scm gnu/packages/compression.scm gnu/packages/crates-io.scm gnu/packages/docbook.scm gnu/packages/engineering.scm gnu/packages/gcc.scm gnu/packages/gl.scm gnu/packages/gtk.scm gnu/packages/nettle.scm gnu/packages/python-check.scm gnu/packages/python-xyz.scm gnu/packages/radio.scm gnu/packages/rust.scm gnu/packages/sqlite.scm guix/build-system/node.scm
2021-03-28gnu: cross-base: Relax check for powerpc64le.Carl Dong
* gnu/packages/cross-base.scm (cross-gcc-arguments): When conditionally adding "--with-long-double-128", check for "powerpc64le-" prefix instead of matching full target. Signed-off-by: Chris Marusich <cmmarusich@gmail.com>
2020-12-17gnu: cross-base: Re-add cross-MIG as an input for GNU/Hurd.Ludovic Courtès
* gnu/packages/cross-base.scm (cross-libc)[native-inputs]: Re-add "cross-mig", erroneously removed in 6690b6d1e7333137e4731ec5e4bb30d6637c3237.
2020-12-17gnu: cross-base: Remove unused Hurd patches from 'inputs'.Ludovic Courtès
* gnu/packages/cross-base.scm (cross-libc)[inputs]: Remove. They have been unused since 6690b6d1e7333137e4731ec5e4bb30d6637c3237.
2020-11-29Merge remote-tracking branch 'origin/master' into core-updatesChristopher Baines
2020-11-26gnu: gcc-boot0, cross-base: Enable 128-bit long double for POWER9.dftxbs3e
* gnu/packages/cross-base.scm (cross-gcc-arguments): Add "--with-long-double-128" when TARGET is "powerpc64le-linux-gnu". * gnu/packages/commencement.scm (gcc-boot0): Likewise for (boot-triplet). Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2020-11-08gnu: cross-base: Move glibc Hurd patches to 'inputs'.Ludovic Courtès
Fixes "guix build --target=i586-pc-gnu bootstrap-tarballs". * gnu/packages/cross-base.scm (cross-libc): Move Hurd patches from 'native-inputs' to 'inputs'.
2020-10-26gnu: glibc: Move patches for the Hurd from cross-libc.Jan (janneke) Nieuwenhuizen
* gnu/packages/cross-base.scm (cross-libc)[arguments]: Remove "patch-libc/hurd" stage. [native-inputs]: Move hurd patches to... * gnu/packages/base.scm (glibc)[source]: ...here.
2020-06-26gnu: mig: Do not assume "perl" to be available.Jan (janneke) Nieuwenhuizen
* gnu/packages/hurd.scm (mig)[inputs]: Include perl. [arguments]: Substitute "perl" with full store file name in bin/mig. * gnu/packages/cross-base.scm (cross-kernel-headers): Adjust mig-cross accordingly.
2020-04-11gnu: cross-libc: Add patch to allow 'gettyent' reading store file names.Jan (janneke) Nieuwenhuizen
* gnu/packages/patches/glibc-hurd-gettyent.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/cross-base.scm (cross-libc): Add it in 'patch-libc/hurd' phase when 'hurd-target?' is true.
2020-04-11gnu: cross-libc: Add patch to add 'mach_print' symbol on GNU/Hurd.Ludovic Courtès
* gnu/packages/patches/glibc-hurd-mach-print.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/cross-base.scm (cross-libc): Add 'patch-libc/hurd' phase when 'hurd-target?' is true.
2020-04-11Merge branch 'master' into core-updatesMarius Bakke
2020-04-10gnu: binutils: Shorten file names of MinGW patches.Ludovic Courtès
This ensures we stay below the POSIX tar file name length limit. * gnu/packages/patches/binutils-mingw-w64-reproducible-import-libraries.patch: Rename to... * gnu/packages/patches/binutils-mingw-w64-deterministic.patch: ... this. * gnu/packages/patches/binutils-mingw-w64-specify-timestamp.patch: Rename to... * gnu/packages/patches/binutils-mingw-w64-timestamp.patch: ... this. * gnu/local.mk (dist_patch_DATA): Adjust accordingly. * gnu/packages/cross-base.scm (cross-binutils): Likewise.
2020-04-08Merge branch 'master' into core-updatesMarius Bakke
Conflicts: etc/news.scm gnu/local.mk gnu/packages/check.scm gnu/packages/cross-base.scm gnu/packages/gimp.scm gnu/packages/java.scm gnu/packages/mail.scm gnu/packages/sdl.scm gnu/packages/texinfo.scm gnu/packages/tls.scm gnu/packages/version-control.scm
2020-04-08gnu: cross-base: Remove unneeded 'let'.Ludovic Courtès
This is a followup to 102d307520dee27a40feb1ca5a699763a2f3aefe. * gnu/packages/cross-base.scm (cross-libc): Remove (let ((libc libc)) …). (cherry picked from commit 524a4e357cd71566841aaf405e8548fa3600b11b)
2020-04-06gnu: Move PACKAGES-WITH-*PATCHES to (guix packages)Carl Dong
* gnu/packages/cross-base.scm (package-with-extra-patches, package-with-patches): Move procedures from here... * guix/packages.scm (package-with-extra-patches, package-with-patches): ...to here, and export.
2020-04-05gnu: cross-base: Remove unneeded 'let'.Ludovic Courtès
This is a followup to 102d307520dee27a40feb1ca5a699763a2f3aefe. * gnu/packages/cross-base.scm (cross-libc): Remove (let ((libc libc)) …).