Merge branch 'master' into staging

21 files changed, 576 insertions, 189 deletions

diff --git a/gnu/packages/base.scm b/gnu/packages/base.scm
index 9af04029ba..38d9524653 100644
--- a/gnu/packages/base.scm
+++ b/gnu/packages/base.scm
@@ -13,7 +13,7 @@
 ;;; Copyright © 2017, 2018 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2017 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
-;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -975,7 +975,7 @@ with the Linux kernel.")
                   (("/bin/pwd") "pwd"))
                 #t))))))))
 
-(define-public glibc-locales
+(define-public (make-glibc-locales glibc)
   (package
     (inherit glibc)
     (name "glibc-locales")
@@ -1010,7 +1010,7 @@ the 'share/locale' sub-directory of this package.")
                                         ,(version-major+minor
                                           (package-version glibc)))))))))))
 
-(define-public glibc-utf8-locales
+(define-public (make-glibc-utf8-locales glibc)
   (package
     (name "glibc-utf8-locales")
     (version (package-version glibc))
@@ -1060,6 +1060,18 @@ test environments.")
     (home-page (package-home-page glibc))
     (license (package-license glibc))))
 
+(define-public glibc-locales
+  (make-glibc-locales glibc))
+(define-public glibc-utf8-locales
+  (make-glibc-utf8-locales glibc))
+
+(define-public glibc-locales-2.27
+  (package (inherit (make-glibc-locales glibc-2.27))
+           (name "glibc-locales-2.27")))
+(define-public glibc-utf8-locales-2.27
+  (package (inherit (make-glibc-utf8-locales glibc-2.27))
+           (name "glibc-utf8-locales-2.27")))
+
 (define-public which
   (package
     (name "which")
diff --git a/gnu/packages/cpp.scm b/gnu/packages/cpp.scm
index d591e6a884..f5aa447a79 100644
--- a/gnu/packages/cpp.scm
+++ b/gnu/packages/cpp.scm
@@ -41,12 +41,15 @@
     (version "0.4.37")
     (source (origin
               (method url-fetch)
+              ;; Warning: This source has proved unreliable 1 time at least.
+              ;; Consider an alternate source or report upstream if this
+              ;; happens again.
               (uri (string-append "https://mediaarea.net/download/source/"
                                   name "/" version "/"
                                   name "_" version ".tar.bz2"))
               (sha256
                (base32
-                "1hcsrmn85b0xp0mp33aazk7g071q1v3f163nnhv8b0mv9c4bgsfn"))))
+                "1dkqbgabzpa6bd7dkqrvd35sdxrhr6qxalb88f3dw0afk65xqb0k"))))
     (native-inputs
      `(("autoconf" ,autoconf)
        ("automake" ,automake)
@@ -58,10 +61,8 @@
        (modify-phases %standard-phases
          (add-after 'unpack 'pre-configure
            (lambda _
-             (chdir "Project/GNU/Library")))
-         (add-after 'pre-configure 'autogen
-           (lambda _
-             (zero? (system* "sh" "autogen.sh")))))))
+             (chdir "Project/GNU/Library")
+             #t)))))
     (home-page "https://github.com/MediaArea/ZenLib")
     (synopsis "C++ utility library")
     (description "ZenLib is a C++ utility library.  It includes classes for handling
diff --git a/gnu/packages/ebook.scm b/gnu/packages/ebook.scm
index 21c2b2b6f0..99e49bc172 100644
--- a/gnu/packages/ebook.scm
+++ b/gnu/packages/ebook.scm
@@ -178,6 +178,10 @@
                   (pyqt (assoc-ref inputs "python2-pyqt")))
               (substitute* "setup/build_environment.py"
                 (("sys.prefix") (string-append "'" pyqt "'")))
+              (substitute* "src/calibre/ebooks/pdf/pdftohtml.py"
+                (("PDFTOHTML = 'pdftohtml'")
+                 (string-append "PDFTOHTML = \"" (assoc-ref inputs "poppler")
+                  "/bin/pdftohtml\"")))
               (setenv "PODOFO_INC_DIR" (string-append podofo "/include/podofo"))
               (setenv "PODOFO_LIB_DIR" (string-append podofo "/lib"))
               #t)))
diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index e90c3b3e29..2a811e5315 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -31,7 +31,7 @@
 ;;; Copyright © 2017 Peter Mikkelsen <petermikkelsen10@gmail.com>
 ;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Mike Gerwitz <mtg@gnu.org>
-;;; Copyright © 2017, 2018 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2017, 2018, 2019 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2018 Sohom Bhattacharjee <soham.bhattacharjee15@gmail.com>
 ;;; Copyright © 2018 Mathieu Lirzin <mthl@gnu.org>
 ;;; Copyright © 2018, 2019 Pierre Neidhardt <mail@ambrevar.xyz>
@@ -6906,49 +6906,53 @@ Emacs.")
 ;; Tests for ert-runner have a circular dependency with ecukes, and therefore
 ;; cannot be run
 (define-public emacs-ert-runner
-  (package
-    (name "emacs-ert-runner")
-    (version "0.7.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "https://github.com/rejeep/ert-runner.el/archive/v"
-                           version ".tar.gz"))
-       (file-name (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32
-         "1657nck9i96a4xgl8crfqq0s8gflzp21pkkzwg6m3z5npjxklgwp"))))
-    (build-system emacs-build-system)
-    (inputs
-     `(("emacs-ansi" ,emacs-ansi)
-       ("emacs-commander" ,emacs-commander)
-       ("emacs-dash" ,emacs-dash)
-       ("emacs-f" ,emacs-f)
-       ("emacs-s" ,emacs-s)
-       ("emacs-shut-up" ,emacs-shut-up)))
-    (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (add-after 'install 'install-executable
-           (lambda* (#:key inputs outputs #:allow-other-keys)
-             (let ((out (assoc-ref outputs "out")))
-               (substitute* "bin/ert-runner"
-                 (("ERT_RUNNER=\"\\$\\(dirname \\$\\(dirname \\$0\\)\\)")
-                  (string-append "ERT_RUNNER=\"" out
-                                 "/share/emacs/site-lisp/guix.d/ert-runner-"
-                                 ,version)))
-               (install-file "bin/ert-runner" (string-append out "/bin"))
-               (wrap-program (string-append out "/bin/ert-runner")
-                 (list "EMACSLOADPATH" ":" 'prefix
-                       (string-split (getenv "EMACSLOADPATH") #\:)))
-               #t))))
-       #:include (cons* "^reporters/.*\\.el$" %default-include)))
-    (home-page "https://github.com/rejeep/ert-runner.el")
-    (synopsis "Opinionated Ert testing workflow")
-    (description "@code{ert-runner} is a tool for Emacs projects tested
+  (let ((version "0.7.0")
+        (revision "1")
+        (commit "90b8fdd5970ef76a4649be60003b37f82cdc1a65"))
+    (package
+      (name "emacs-ert-runner")
+      (version (git-version "0.7.0" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/rejeep/ert-runner.el.git")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32
+           "04nxmyzncacj2wmzd84vv9wkkr2dk9lcb10dvygqmg3p1gadnwzz"))))
+      (build-system emacs-build-system)
+      (inputs
+       `(("emacs-ansi" ,emacs-ansi)
+         ("emacs-commander" ,emacs-commander)
+         ("emacs-dash" ,emacs-dash)
+         ("emacs-f" ,emacs-f)
+         ("emacs-s" ,emacs-s)
+         ("emacs-shut-up" ,emacs-shut-up)))
+      (arguments
+       `(#:phases
+         (modify-phases %standard-phases
+           (add-after 'install 'install-executable
+             (lambda* (#:key inputs outputs #:allow-other-keys)
+               (let ((out (assoc-ref outputs "out")))
+                 (substitute* "bin/ert-runner"
+                   (("ERT_RUNNER=\"\\$\\(dirname \\$\\(dirname \\$0\\)\\)")
+                    (string-append "ERT_RUNNER=\"" out
+                                   "/share/emacs/site-lisp/guix.d/ert-runner-"
+                                   ,version)))
+                 (install-file "bin/ert-runner" (string-append out "/bin"))
+                 (wrap-program (string-append out "/bin/ert-runner")
+                   (list "EMACSLOADPATH" ":" 'prefix
+                         (string-split (getenv "EMACSLOADPATH") #\:)))
+                 #t))))
+         #:include (cons* "^reporters/.*\\.el$" %default-include)))
+      (home-page "https://github.com/rejeep/ert-runner.el")
+      (synopsis "Opinionated Ert testing workflow")
+      (description "@code{ert-runner} is a tool for Emacs projects tested
 using ERT.  It assumes a certain test structure setup and can therefore make
 running tests easier.")
-    (license license:gpl3+)))
+      (license license:gpl3+))))
 
 (define-public ert-runner
   (deprecated-package "ert-runner" emacs-ert-runner))
@@ -12867,3 +12871,27 @@ DBI, and provides DB-accessing API and the simple management UI.")
       (description "This package is a convenience wrapper for @command{edbi}
 to open SQLite databases.")
       (license license:gpl3+))))
+
+(define-public emacs-nix-mode
+  (package
+    (name "emacs-nix-mode")
+    (version "1.2.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://github.com/NixOS/nix-mode/archive/v"
+                           version ".tar.gz"))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "06aqz0czznsj8835jqnk794sy2p6pa8kxfqwh0nl5d5vxivria6z"))))
+    (build-system emacs-build-system)
+    (inputs
+     `(("emacs-company" ,emacs-company)
+       ("emacs-mmm-mode" ,emacs-mmm-mode)))
+    (home-page "https://github.com/NixOS/nix-mode")
+    (synopsis "Emacs major mode for editing Nix expressions")
+    (description "@code{nixos-mode} provides an Emacs major mode for editing
+Nix expressions.  It supports syntax highlighting, indenting and refilling of
+comments.")
+    (license license:lgpl2.1+)))
diff --git a/gnu/packages/finance.scm b/gnu/packages/finance.scm
index 4683887979..250b1db144 100644
--- a/gnu/packages/finance.scm
+++ b/gnu/packages/finance.scm
@@ -73,15 +73,15 @@
 (define-public bitcoin-core
   (package
     (name "bitcoin-core")
-    (version "0.16.1")
+    (version "0.17.1")
     (source (origin
              (method url-fetch)
              (uri
-              (string-append "https://bitcoin.org/bin/bitcoin-core-"
+              (string-append "https://bitcoincore.org/bin/bitcoin-core-"
                              version "/bitcoin-" version ".tar.gz"))
              (sha256
               (base32
-               "1zkqp93yircd3pbxczxfnibkpq0sgcv5r7wg6d196b9pwgr9zd39"))))
+               "0am4pnaf2cisv172jqx6jdpzx770agm8777163lkjbw3ryslymiy"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)
@@ -115,9 +115,15 @@
                          "/bin/lupdate"))
        #:phases
         (modify-phases %standard-phases
+          (add-before 'configure 'make-qt-deterministic
+           (lambda _
+            ;; Make Qt deterministic.
+            (setenv "QT_RCC_SOURCE_DATE_OVERRIDE" "1")
+            #t))
           (add-before 'check 'set-home
            (lambda _
-            (setenv "HOME" (getenv "TMPDIR"))))))) ; Tests write to $HOME.
+            (setenv "HOME" (getenv "TMPDIR"))  ; Tests write to $HOME.
+            #t)))))
     (home-page "https://bitcoin.org/en/")
     (synopsis "Bitcoin peer-to-peer client")
     (description
diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index 9fa2bb1795..176f56e7a2 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -1418,6 +1418,8 @@ interface or via an external visual interface such as GNU XBoard.")
               ("sdl-gfx" ,sdl-gfx)
               ("fontconfig" ,fontconfig)
               ("check" ,check)))
+    (properties '((ftp-directory . "/freedink")
+                  (upstream-name . "freedink")))
     (home-page "https://www.gnu.org/software/freedink/")
     (synopsis "Twisted adventures of young pig farmer Dink Smallwood")
     (description
@@ -1430,14 +1432,14 @@ To that extent, it also includes a front-end for managing all of your D-Mods.")
 (define freedink-data
   (package
     (name "freedink-data")
-    (version "1.08.20170401")
+    (version "1.08.20190120")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnu/freedink/freedink-data-"
-                                  version ".tar.xz"))
+                                  version ".tar.gz"))
               (sha256
                (base32
-                "1zx7qywibhznj7bnz217404scr8dfh0xj24xjihnda5iapzz7lz8"))))
+                "17gvryadlxk172mblbsil7hina1z5wahwaxnr6g3mdq57dvl8pvi"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases
@@ -1445,6 +1447,7 @@ To that extent, it also includes a front-end for managing all of your D-Mods.")
          (delete 'configure)            ; no configure script
          (delete 'check))               ; no tests
        #:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out")))))
+    (properties '((ftp-directory . "/freedink")))
     (home-page "https://www.gnu.org/software/freedink/")
     (synopsis "Game data for GNU Freedink")
     (description
@@ -1468,6 +1471,8 @@ To that extent, it also includes a front-end for managing all of your D-Mods.")
     (inputs
      `(("bzip2" ,bzip2)
        ("wxwidgets" ,wxwidgets)))
+    (properties '((ftp-directory . "/freedink")
+                  (upstream-name . "dfarc")))
     (home-page "https://www.gnu.org/software/freedink/")
     (synopsis "Front-end for managing and playing Dink Modules")
     (description "DFArc makes it easy to play and manage the GNU FreeDink game
@@ -5453,6 +5458,9 @@ Strife, Chex Quest, and fan-created games like Harmony, Hacx and Freedoom.")
                           (string-append "fortune-mod/cmake/"
                                          (strip-store-file-name cmake-rules)))
                (chdir "fortune-mod")
+               ;; TODO: Valgrind tests fail for some reason.
+               ;; Similar issue: https://github.com/shlomif/fortune-mod/issues/21 (?)
+               (delete-file "tests/t/valgrind.t")
                #t)))
          (add-after 'install 'fix-install-directory
            (lambda* (#:key outputs #:allow-other-keys)
diff --git a/gnu/packages/guile.scm b/gnu/packages/guile.scm
index 8d14571895..b1447a1d2e 100644
--- a/gnu/packages/guile.scm
+++ b/gnu/packages/guile.scm
@@ -1672,7 +1672,7 @@ is no support for parsing block and inline level HTML.")
 (define-public guile-bytestructures
   (package
     (name "guile-bytestructures")
-    (version "1.0.3")
+    (version "1.0.5")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/TaylanUB/scheme-bytestructures"
@@ -1680,7 +1680,7 @@ is no support for parsing block and inline level HTML.")
                                   "/bytestructures-" version ".tar.gz"))
               (sha256
                (base32
-                "0xf6s8gd3656j8k2ar6y7i62r68azawyzxhsagsk8nvldnrs1r18"))))
+                "0ibk7fjwpb450lnrva4bx45sgln3pbyb645az4ansvh1spgani43"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)))
diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index a3ce2a3e4c..9433ae0570 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 Eric Bavier <bavier@member.fsf.org>
-;;; Copyright © 2016, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016, 2017 Nils Gillmann <ng0@n0.is>
 ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2015, 2016, 2017, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
@@ -3790,8 +3790,6 @@ writing to stdout and other handles.")
         (base32
          "1qrpxfirsxckg7jv28f5ah2qc8lh95hp7rnqkbqs1ahcwlbnvkm7"))))
     (build-system haskell-build-system)
-    (inputs
-     `(("ghc-hunit" ,ghc-hunit)))
     ;; these inputs are necessary to use this library
     (inputs
      `(("ghc-text" ,ghc-text)
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index 4bd53c2ba0..1d47d2caaf 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -2,7 +2,7 @@
 ;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2014, 2015, 2016 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2012 Nikita Karetnikov <nikita@karetnikov.org>
-;;; Copyright © 2014, 2015, 2016, 2017, 2018 Mark H Weaver <mhw@netris.org>
+;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
 ;;; Copyright © 2015 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
 ;;; Copyright © 2015, 2016, 2017, 2018 Efraim Flashner <efraim@flashner.co.il>
@@ -413,8 +413,8 @@ for ARCH and optionally VARIANT, or #f if there is no such configuration."
 It has been modified to remove all non-free binary blobs.")
     (license license:gpl2)))
 
-(define %linux-libre-version "4.20.3")
-(define %linux-libre-hash "0mk996fb4bd9548xnv2as4lxm3gyj1kvn6ra03xxpb0wf8cqdazz")
+(define %linux-libre-version "4.20.4")
+(define %linux-libre-hash "1p7ixkqvnr0mzyivyby8hfix44np7w1nvyxghz8wa1h2nhsszvzv")
 
 (define %linux-libre-4.20-patches
   (list %boot-logo-patch
@@ -427,8 +427,8 @@ It has been modified to remove all non-free binary blobs.")
                     #:patches %linux-libre-4.20-patches
                     #:configuration-file kernel-config))
 
-(define %linux-libre-4.19-version "4.19.16")
-(define %linux-libre-4.19-hash "1dpfllfzksrr6iqhvbh2905gkvycsv5zcmgq6wmwqiry1swzdfyk")
+(define %linux-libre-4.19-version "4.19.17")
+(define %linux-libre-4.19-hash "0friqd9wyhddjli4m41wd994ygnwng40a95ry14478rkadfv7iwh")
 
 (define %linux-libre-4.19-patches
   (list %boot-logo-patch
@@ -5039,3 +5039,88 @@ file systems.")
     ;; The library "libhandle" and the headers in "xfslibs-dev" are
     ;; licensed under lgpl2.1. the other stuff is licensed under gpl2.
     (license (list license:gpl2 license:lgpl2.1))))
+
+(define-public genext2fs
+  (package
+    (name "genext2fs")
+    (version "1.4.1")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/jeremie-koenig/genext2fs.git")
+                    (commit (string-append "genext2fs-" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1r0n74pyypv63qfqqpvx75dwijcsvcrvqrlv8sldbhv0nwr1gk53"))))
+    (build-system gnu-build-system)
+    (home-page "https://github.com/jeremie-koenig/genext2fs")
+    (synopsis "Generate ext2 filesystem as a normal user")
+    (description "This package provides a program to general an ext2
+filesystem as a normal (non-root) user.  It does not require you to mount
+the image file to copy files on it, nor does it require that you become
+the superuser to make device nodes.")
+    (license license:gpl2)))
+
+(define-public fakeroot
+  (package
+    (name "fakeroot")
+    (version "1.23")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://ftp.debian.org/debian/pool/main/f/"
+                                  "fakeroot/fakeroot_" version ".orig.tar.xz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "1xpl0s2yjyjwlf832b6kbkaa5921liybaar13k7n45ckd9lxd700"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+        (add-after 'configure 'patch-Makefile
+          (lambda _
+            ;; Note: The root of the problem is already in "Makefile.am".
+            (substitute* "Makefile"
+             (("/bin/sh") (which "sh")))
+            #t))
+        (add-after 'unpack 'patch-getopt
+          (lambda*  (#:key inputs #:allow-other-keys)
+            (substitute* "scripts/fakeroot.in"
+             (("getopt")
+              (string-append (assoc-ref inputs "util-linux")
+                             "/bin/getopt")))
+            #t))
+        (add-before 'check 'prepare-check
+          (lambda _
+            (setenv "SHELL" (which "bash"))
+            (setenv "VERBOSE" "1")
+            (substitute* "test/t.touchinstall"
+             ;; We don't have the name of the root user, so use ID=0.
+             (("grep root") "grep \"\\<0\\>\""))
+            (substitute* "test/tartest"
+             ;; We don't have the name of the root group, so use ID=0.
+             (("ROOTGROUP=root") "ROOTGROUP=0")
+             ;; We don't have the name of the daemon user, so use IDs.
+             (("daemon:sys") "1:3")
+             (("daemon:") "1:"))
+            ;; We don't have an /etc/passwd entry for "root" - use numeric IDs.
+            (substitute* "test/compare-tar"
+             (("tar -tvf") "tar --numeric-owner -tvf"))
+            #t)))))
+    (native-inputs
+     `(("sharutils" ,sharutils) ; for the tests
+       ("xz" ,xz))) ; for the tests
+    (inputs
+     `(("libcap" ,libcap)
+       ("util-linux" ,util-linux)))
+    (synopsis "Provides a fake root environment")
+    (description "@command{fakeroot} runs a command in an environment where
+it appears to have root privileges for file manipulation. This is useful
+for allowing users to create archives (tar, ar, .deb etc.) with files in
+them with root permissions/ownership. Without fakeroot one would have to
+have root privileges to create the constituent files of the archives with
+the correct permissions and ownership, and then pack them up, or one would
+have to construct the archives directly, without using the archiver.")
+    (home-page "http://freshmeat.sourceforge.net/projects/fakeroot")
+    (license license:gpl3+)))
diff --git a/gnu/packages/messaging.scm b/gnu/packages/messaging.scm
index 36a181446a..be39d14b53 100644
--- a/gnu/packages/messaging.scm
+++ b/gnu/packages/messaging.scm
@@ -553,14 +553,14 @@ simultaneously and therefore appear under the same nickname on IRC.")
 (define-public python-nbxmpp
   (package
     (name "python-nbxmpp")
-    (version "0.6.8")
+    (version "0.6.9")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "nbxmpp" version))
        (sha256
         (base32
-         "1iip8ijxp86fx4bl1h67p2lp02p2zm1ga2p3q43nv30smj54nawc"))))
+         "03f8dk4kb7ya0pg7v0a0kqms4c7f2bqan5wl4ig0mcwpdmppj3b6"))))
     (build-system python-build-system)
     (arguments
      `(#:tests? #f))                    ; no tests
@@ -578,7 +578,7 @@ was initially a fork of xmpppy, but uses non-blocking sockets.")
 (define-public gajim
   (package
     (name "gajim")
-    (version "1.1.1")
+    (version "1.1.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://gajim.org/downloads/"
@@ -586,7 +586,7 @@ was initially a fork of xmpppy, but uses non-blocking sockets.")
                                   "/gajim-" version ".tar.bz2"))
               (sha256
                (base32
-                "09n4445hclqwfnk2h9cxvsxaixza4cpgb5rp4najdfc2jgg2msb3"))))
+                "1lx03cgi58z54xb7mhs6bc715lc00w5mpysf9n3q8zgn759fm0rj"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
diff --git a/gnu/packages/moreutils.scm b/gnu/packages/moreutils.scm
index 34bce23c30..12d93079c0 100644
--- a/gnu/packages/moreutils.scm
+++ b/gnu/packages/moreutils.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
-;;; Copyright © 2016, 2017 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2017, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016, 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -30,7 +30,7 @@
 (define-public moreutils
   (package
     (name "moreutils")
-    (version "0.62")
+    (version "0.63")
     (source
      (origin
        (method url-fetch)
@@ -43,7 +43,7 @@
               name "-" version ".tar.gz")))
        (sha256
         (base32
-         "1gc3rswr0jl0z42pbrmw2zc4gxsyp60hq8cnvrlsig1vk1s9vpwx"))))
+         "07c3wqf1sx3nhj4cs71a9ajcfl6arjjvvnhwqz7a0xm2m1b6vj2g"))))
     (build-system gnu-build-system)
     ;; For building the manual pages.
     (native-inputs
@@ -63,7 +63,8 @@
                       (let* ((out (assoc-ref outputs "out")))
                         (wrap-program
                             (string-append out "/bin/ts")
-                          `("PERL5LIB" ":" prefix (,(getenv "PERL5LIB")))))))
+                          `("PERL5LIB" ":" prefix (,(getenv "PERL5LIB")))))
+                      #t))
          (delete 'configure))           ; no configure script
        #:make-flags
        (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
diff --git a/gnu/packages/package-management.scm b/gnu/packages/package-management.scm
index 05da8190b6..66712da08c 100644
--- a/gnu/packages/package-management.scm
+++ b/gnu/packages/package-management.scm
@@ -43,7 +43,6 @@
   #:use-module (gnu packages curl)
   #:use-module (gnu packages dbm)
   #:use-module (gnu packages docbook)
-  #:use-module (gnu packages emacs-xyz)
   #:use-module (gnu packages file)
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages glib)
@@ -76,7 +75,6 @@
   #:use-module (gnu packages web)
   #:use-module (gnu packages xml)
   #:use-module (gnu packages xorg)
-  #:use-module (guix build-system emacs)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system meson)
   #:use-module (guix build-system python)
@@ -460,30 +458,6 @@ store, usually the directory /nix/store, where each package has its own unique
 sub-directory.")
     (license license:lgpl2.1+)))
 
-(define-public emacs-nix-mode
-  (package
-    (name "emacs-nix-mode")
-    (version "1.2.2")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "https://github.com/NixOS/nix-mode/archive/v"
-                           version ".tar.gz"))
-       (file-name (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32
-         "06aqz0czznsj8835jqnk794sy2p6pa8kxfqwh0nl5d5vxivria6z"))))
-    (build-system emacs-build-system)
-    (inputs
-     `(("emacs-company" ,emacs-company)
-       ("emacs-mmm-mode" ,emacs-mmm-mode)))
-    (home-page "https://github.com/NixOS/nix-mode")
-    (synopsis "Emacs major mode for editing Nix expressions")
-    (description "@code{nixos-mode} provides an Emacs major mode for editing
-Nix expressions.  It supports syntax highlighting, indenting and refilling of
-comments.")
-    (license license:lgpl2.1+)))
-
 (define-public stow
   (package
     (name "stow")
diff --git a/gnu/packages/pdf.scm b/gnu/packages/pdf.scm
index 2c9442db02..33bd0062ff 100644
--- a/gnu/packages/pdf.scm
+++ b/gnu/packages/pdf.scm
@@ -1067,26 +1067,45 @@ presentation.  The input files processed by pdfpc are PDF documents.")
     (license license:gpl2+)))
 
 (define-public paps
-  (package
-    (name "paps")
-    (version "0.6.8")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://sourceforge/paps/paps/" version "/"
-                           "paps-" version ".tar.gz"))
-       (sha256
-        (base32
-         "080ahnyvq918m8ahq8bg9qvgzlv4k0jgcsdqhrwjzppclx74q8fv"))))
-    (build-system gnu-build-system)
-    (inputs
-     `(("pango" ,pango)))
-    (native-inputs
-     `(("pkg-config" ,pkg-config)))
-    (home-page "http://paps.sourceforge.net/")
-    (synopsis "Pango to PostScript converter")
-    (description
-     "Paps reads a UTF-8 encoded file and generates a PostScript language
+  (let ((commit "37e6ca1cd96d751bbbff5539d795c90d657289a5")
+        (revision "1"))
+    (package
+      (name "paps")
+      ;; The last release was in 2015, but since then there have been security
+      ;; bug fixes.
+      (version (git-version "0.7.0" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/dov/paps.git")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32
+           "1ilcyjqdynxsd2p8dnn8h4592dwf531x9pbkxa1w09hkcdn7hgwc"))))
+      (build-system gnu-build-system)
+      (arguments
+       `(#:phases
+         (modify-phases %standard-phases
+           (add-after 'unpack 'do-not-run-configure-script-during-bootstrap
+             (lambda _
+               (substitute* "autogen.sh"
+                 (("^./configure") "#"))
+               #t)))))
+      (inputs
+       `(("pango" ,pango)))
+      (native-inputs
+       `(("autoconf" ,autoconf)
+         ("automake" ,automake)
+         ("gettext" ,gettext-minimal)
+         ("glib" ,glib "bin")
+         ("intltool" ,intltool)
+         ("pkg-config" ,pkg-config)))
+      (home-page "https://github.com/dov/paps")
+      (synopsis "Pango to PostScript converter")
+      (description
+       "Paps reads a UTF-8 encoded file and generates a PostScript language
 rendering of the file.  The rendering is done by creating outline curves
 through the Pango @code{ft2} backend.")
-    (license license:lgpl2.0+)))
+      (license license:lgpl2.0+))))
diff --git a/gnu/packages/perl-check.scm b/gnu/packages/perl-check.scm
index ee832ccf94..c1edf48f06 100644
--- a/gnu/packages/perl-check.scm
+++ b/gnu/packages/perl-check.scm
@@ -788,6 +788,28 @@ set_relative_time, set_absolute_time or set_fixed_time to alter future calls
 to gmtime,time or localtime.")
     (license perl-license)))
 
+(define-public perl-test-more-utf8
+  (package
+    (name "perl-test-more-utf8")
+    (version "0.05")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (string-append
+               "mirror://cpan/authors/id/M/MO/MONS/Test-More-UTF8-"
+               version ".tar.gz"))
+        (sha256
+         (base32
+          "016fs77lmw8xxrcnapvp6wq4hjwgsdfi3l9ylpxgxkcpdarw9wdr"))))
+    (build-system perl-build-system)
+    (home-page "https://metacpan.org/release/Test-More-UTF8")
+    (synopsis "Enhance Test::More for UTF8-based projects")
+    (description "@code{Test::More::UTF8} is a simple extension for the widely
+used @code{Test::More} module.  By default, it will do a @code{binmode ':utf8'}
+on all of @code{Test::Builder}'s output handles thus enabling the easy use
+flagged strings without warnings like \"Wide character in print @dots{}\"")
+    (license perl-license)))
+
 (define-public perl-test-most
   (package
     (name "perl-test-most")
diff --git a/gnu/packages/perl.scm b/gnu/packages/perl.scm
index c4d9d64de3..073cdbf482 100644
--- a/gnu/packages/perl.scm
+++ b/gnu/packages/perl.scm
@@ -3431,7 +3431,7 @@ provide a quick dropin when such functionality is needed.")
 (define-public perl-file-homedir
   (package
     (name "perl-file-homedir")
-    (version "1.002")
+    (version "1.004")
     (source
      (origin
        (method url-fetch)
@@ -3439,7 +3439,7 @@ provide a quick dropin when such functionality is needed.")
                            "File-HomeDir-" version ".tar.gz"))
        (sha256
         (base32
-         "0x62hn8rc7ninf9nlp69h61yh21g4cbq2g81sh64cf2ify2hqk7b"))))
+         "1bciyzwv7gwsnaykqz0czj6mlbkkg4hg1s40s1q7j2p6nlmpxxj5"))))
     (build-system perl-build-system)
     (propagated-inputs
      `(("perl-file-which" ,perl-file-which)))
@@ -3559,7 +3559,7 @@ the input record separator string on a per file basis.")
 (define-public perl-file-remove
   (package
     (name "perl-file-remove")
-    (version "1.57")
+    (version "1.58")
     (source
      (origin
        (method url-fetch)
@@ -3567,14 +3567,16 @@ the input record separator string on a per file basis.")
                            "File-Remove-" version ".tar.gz"))
        (sha256
         (base32
-         "1b814lw181kkqh6c1n4p2zlzzsq6ic5pfpr831nphf2w2rhcvgmk"))))
+         "1n6h5w3sp2bs4cfrifdx2z15cfpb4r536179mx1a12xbmj1yrxl1"))))
     (build-system perl-build-system)
+    (native-inputs
+     `(("perl-module-build" ,perl-module-build)))
     (home-page "https://metacpan.org/release/File-Remove")
     (synopsis "Remove files and directories in Perl")
-    (description "File::Remove::remove removes files and directories.  It acts
-like /bin/rm, for the most part.  Although \"unlink\" can be given a list of
-files, it will not remove directories; this module remedies that.  It also
-accepts wildcards, * and ?, as arguments for file names.")
+    (description "@code{File::Remove::remove} removes files and directories.
+It acts like @code{/bin/rm}, for the most part.  Although @code{unlink} can be
+given a list of files, it will not remove directories; this module remedies
+that.  It also accepts wildcards, * and ?, as arguments for file names.")
     (license (package-license perl))))
 
 (define-public perl-file-sharedir
@@ -3648,15 +3650,15 @@ allows you to locate these files after installation.")
 (define-public perl-file-slurp
   (package
     (name "perl-file-slurp")
-    (version "9999.19")
+    (version "9999.25")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cpan/authors/id/U/UR/URI/"
+       (uri (string-append "mirror://cpan/authors/id/C/CA/CAPOEIRAB/"
                            "File-Slurp-" version ".tar.gz"))
        (sha256
         (base32
-         "0hrn4nipwx40d6ji8ssgr5nw986z9iqq8cn0kdpbszh9jplynaff"))))
+         "1hg3bhf5m78d77p4174cnldd75ppyrvr5rkc8w289ihvwsx9gsn7"))))
     (build-system perl-build-system)
     (home-page "https://metacpan.org/release/File-Slurp")
     (synopsis "Reading/Writing/Modifying of complete files")
@@ -3732,14 +3734,14 @@ a safe way.")
 (define-public perl-file-which
   (package
     (name "perl-file-which")
-    (version "1.09")
+    (version "1.23")
     (source (origin
               (method url-fetch)
-              (uri (string-append "mirror://cpan/authors/id/A/AD/ADAMK/"
+              (uri (string-append "mirror://cpan/authors/id/P/PL/PLICEASE/"
                                   "File-Which-" version ".tar.gz"))
               (sha256
                (base32
-                "1hxjyh9yrv32f3g8vrnr8iylzprajsac14vjm75kf1qnj1jyqbxp"))))
+                "0y70qh5kn2hyrrvbsfhg0iws2qggk5vkpz37f7rbd5rd9cjc57dp"))))
     (build-system perl-build-system)
     (native-inputs `(("test-script" ,perl-test-script)))
     (synopsis "Portable implementation of the `which' utility")
@@ -3747,7 +3749,7 @@ a safe way.")
      "File::Which was created to be able to get the paths to executable
 programs on systems under which the `which' program wasn't implemented in the
 shell.")
-    (home-page "https://metacpan.org/release/ADAMK/File-Which-1.09")
+    (home-page "https://metacpan.org/release/File-Which")
     (license (package-license perl))))
 
 (define-public perl-file-zglob
@@ -4361,15 +4363,15 @@ commands.")
 (define-public perl-json
   (package
     (name "perl-json")
-    (version "2.90")
+    (version "4.01")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cpan/authors/id/M/MA/MAKAMAKA/"
+       (uri (string-append "mirror://cpan/authors/id/I/IS/ISHIGAKI/"
                            "JSON-" version ".tar.gz"))
        (sha256
         (base32
-         "127yppvr17qik9pkd1vy901hs4l13kg6rhp76jdgcyask35v7nsd"))))
+         "1vdiw095g5rf51q8d0ipf8020jx371pma0k4sxp0wlfl76lr65b3"))))
     (build-system perl-build-system)
     (propagated-inputs
      `(("perl-json-xs" ,perl-json-xs))) ;recommended
@@ -4436,7 +4438,7 @@ either uses the first module it finds or throws an error.")
 (define-public perl-json-xs
   (package
     (name "perl-json-xs")
-    (version "3.01")
+    (version "4.0")
     (source
      (origin
        (method url-fetch)
@@ -4444,8 +4446,10 @@ either uses the first module it finds or throws an error.")
                            "JSON-XS-" version ".tar.gz"))
        (sha256
         (base32
-         "1aviik480m61ykwvyix83grywzbk828wvfz19hqfvaasd8jz73af"))))
+         "0118yrzagwlcfj5yldn3h23zzqs2rx282jlm068nf7fjlvy4m7s7"))))
     (build-system perl-build-system)
+    (native-inputs
+     `(("perl-canary-stability" ,perl-canary-stability)))
     (propagated-inputs
      `(("perl-common-sense" ,perl-common-sense)
        ("perl-types-serialiser" ,perl-types-serialiser)))
@@ -5299,7 +5303,7 @@ from Moose::Conflicts and moose-outdated.")
 (define-public perl-module-scandeps
   (package
     (name "perl-module-scandeps")
-    (version "1.25")
+    (version "1.27")
     (source
      (origin
        (method url-fetch)
@@ -5307,7 +5311,7 @@ from Moose::Conflicts and moose-outdated.")
                            "Module-ScanDeps-" version ".tar.gz"))
        (sha256
         (base32
-         "13280nq0d6zc58mcz3kvs2m85a741czq0fabk69ks1nr4j1w2nl4"))))
+         "0j6r9r99x5p0i6fv06i44wpsvjxj32amjkiqf6pmqpj80jff2k7f"))))
     (build-system perl-build-system)
     (native-inputs
      `(("perl-test-requires" ,perl-test-requires)))
@@ -8389,7 +8393,7 @@ algorism to indicate multiplication by 1000.")
 (define-public perl-text-template
   (package
     (name "perl-text-template")
-    (version "1.47")
+    (version "1.54")
     (source
      (origin
        (method url-fetch)
@@ -8399,8 +8403,11 @@ algorism to indicate multiplication by 1000.")
              ".tar.gz"))
        (sha256
         (base32
-         "1z781cgz7wbn80lf3kqr2ad0pg6g1wlnim0822h8liw28k3l5msh"))))
+         "0s56jgak9ccbbbybf5v8hvvhyplbfhzl6p6v1751inly80rlj1kv"))))
     (build-system perl-build-system)
+    (native-inputs
+     `(("perl-test-more-utf8" ,perl-test-more-utf8)
+       ("perl-test-warnings" ,perl-test-warnings)))
     (home-page
      "https://metacpan.org/release/Text-Template")
     (synopsis
diff --git a/gnu/packages/python-web.scm b/gnu/packages/python-web.scm
index af0595b36d..cee4973086 100644
--- a/gnu/packages/python-web.scm
+++ b/gnu/packages/python-web.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015 Eric Dvorsak <eric@dvorsak.fr>
-;;; Copyright © 2015, 2016, 2017, 2018 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2015, 2016, 2017, 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017 Christopher Baines <mail@cbaines.net>
 ;;; Copyright © 2016, 2017 Danny Milosavljevic <dannym+a@scratchpost.org>
 ;;; Copyright © 2013, 2014, 2015, 2016 Andreas Enge <andreas@enge.fr>
@@ -1218,14 +1218,14 @@ verification of the SSL peer.")
 (define-public python-websocket-client
   (package
     (name "python-websocket-client")
-    (version "0.37.0")
+    (version "0.54.0")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "websocket_client" version))
        (sha256
         (base32
-         "0h9glp1jll3z76ly3kg08aqgxqk0a68p4zi9yn50353bh5nj92v7"))))
+         "0j88zmikaypf38lvpkf4aaxrjp9j07dmy5ghj7kli0fv3p4n45g5"))))
     (build-system python-build-system)
     (propagated-inputs
      `(("python-six" ,python-six)))
@@ -1233,10 +1233,18 @@ verification of the SSL peer.")
     (synopsis "WebSocket client for Python")
     (description "The Websocket-client module provides the low level APIs for
 WebSocket usage in Python programs.")
+    (properties `((python2-variant . ,(delay python2-websocket-client))))
     (license license:lgpl2.1+)))
 
 (define-public python2-websocket-client
-  (package-with-python2 python-websocket-client))
+  (let ((base (package-with-python2
+                (strip-python2-variant python-websocket-client))))
+    (package
+      (inherit base)
+      (native-inputs
+       `(("python2-backport-ssl-match-hostname"
+          ,python2-backport-ssl-match-hostname)
+         ,@(package-native-inputs base))))))
 
 (define-public python-requests
   (package
diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 770f5abc63..35ac4e69f5 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.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, 2019 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 Eric Bavier <bavier@member.fsf.org>
@@ -1997,25 +1997,25 @@ e.g. filters, callbacks and errbacks can all be promises.")
 (define-public python-virtualenv
   (package
     (name "python-virtualenv")
-    (version "15.0.3")
+    (version "16.1.0")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "virtualenv" version))
        (sha256
         (base32
-         "07cbajzk8l05k5zhlw0b9wbf2is65bl9v6zrn2a0iyn57w6pd73d"))))
+         "0242cg3hdq3qdvx5flyrki8lpwlgwf5k45c21ks5049fv7ygm6gq"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
        (modify-phases %standard-phases
-         (replace 'check
+         (add-before 'check 'disable-failing-test
            (lambda _
              ;; Disable failing test.  See upstream bug report
              ;; https://github.com/pypa/virtualenv/issues/957
              (substitute* "tests/test_virtualenv.py"
                (("skipif.*") "skipif(True, reason=\"Guix\")\n"))
-             (zero? (system* "py.test")))))))
+             #t)))))
     (native-inputs
      `(("python-mock" ,python-mock)
        ("python-pytest" ,python-pytest)))
@@ -3392,8 +3392,6 @@ toolkits.")
        ("python2-scipy" ,python2-scipy)
        ("python2-pandas" ,python2-pandas)))
     (native-inputs
-     `(("python2-cython" ,python2-cython)))
-    (native-inputs
      `(("unzip" ,unzip)))
     (home-page "http://research.microsoft.com/en-us/um/redmond/projects/mscompbio/")
     (synopsis "Library for reading and manipulating genetic data")
@@ -6052,14 +6050,14 @@ and MAC network addresses.")
 (define-public python-wrapt
   (package
     (name "python-wrapt")
-    (version "1.10.11")
+    (version "1.11.1")
     (source
       (origin
         (method url-fetch)
         (uri (pypi-uri "wrapt" version))
         (sha256
           (base32
-            "1ip3dwib39xhp79kblskgvz3fjzcwxgx3fs3ahdixhpjg7a61mfl"))))
+            "0cqmysny1pz01jw26q48q5zasvns6507rwhgm6wcw743f0r01sja"))))
     (build-system python-build-system)
     (arguments
      ;; Tests are not included in the tarball, they are only available in the
@@ -8705,14 +8703,14 @@ to support both Python 2 and Python 3 with minimal overhead.")
 (define-public python-cysignals
   (package
     (name "python-cysignals")
-    (version "1.1.0")
+    (version "1.9.0")
     (source
       (origin
         (method url-fetch)
-        (uri (pypi-uri "cysignals" version ".tar.bz2"))
+        (uri (pypi-uri "cysignals" version))
         (sha256
           (base32
-            "14cbyd9znlz6cxy1s3g6v6dv5jj45hn27pywkidd9b1zanaysqc6"))))
+            "15ix8crpad26cfl1skyg7qajqqfdrm8q5ahhmlfmqi1aw0jqj2g2"))))
     (build-system python-build-system)
     (native-inputs
       `(("python-cython" ,python-cython)
@@ -11396,17 +11394,18 @@ builds partial trees by inspecting living objects.")
 (define-public python-isort
   (package
     (name "python-isort")
-    (version "4.2.5")
+    (version "4.3.4")
     (source
      (origin
-       (method url-fetch)
-       (uri (string-append
-             "https://github.com/timothycrosley/isort/archive/"
-             version ".tar.gz"))
-       (file-name (string-append name "-" version ".tar.gz"))
+       (method git-fetch)
+       (uri (git-reference
+              ;; Tests pass only from the Github sources
+              (url "https://github.com/timothycrosley/isort")
+              (commit version)))
+       (file-name (git-file-name name version))
        (sha256
         (base32
-         "0zsrgkb0krn5476yncy5dd56k7dk34zqb4bnlvwy44ixgilyjmfh"))))
+         "1q0mlrpki5vjbgwxag5rghljjcfg7mvb0pbkwid80p0sqrxlm2p6"))))
     (build-system python-build-system)
     (native-inputs
      `(("python-mock" ,python-mock)
@@ -11417,10 +11416,16 @@ builds partial trees by inspecting living objects.")
 imports alphabetically, and automatically separated into sections.  It
 provides a command line utility, a python library and plugins for various
 editors.")
-    (license license:expat)))
+    (license license:expat)
+    (properties `((python2-variant . ,(delay python2-isort))))))
 
 (define-public python2-isort
-  (package-with-python2 python-isort))
+  (let ((base (package-with-python2
+               (strip-python2-variant python-isort))))
+    (package (inherit base)
+      (native-inputs
+       `(("python2-futures" ,python2-futures)
+         ,@(package-native-inputs base))))))
 
 (define-public python2-backports-functools-lru-cache
   (package
diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 34f10fdeb4..4121832f12 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -15,7 +15,7 @@
 ;;; Copyright © 2016, 2018, 2019 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2017 Feng Shu <tumashu@163.com>
-;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2017, 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Chris Marusich <cmmarusich@gmail.com>
 ;;; Copyright © 2017 Thomas Danckaert <post@thomasdanckaert.be>
 ;;; Copyright © 2017 Ethan R. Jones <doubleplusgood23@gmail.com>
@@ -905,7 +905,7 @@ videoformats depend on the configuration flags of ffmpeg.")
 (define-public vlc
   (package
     (name "vlc")
-    (version "3.0.5")
+    (version "3.0.6")
     (source (origin
              (method url-fetch)
              (uri (string-append
@@ -914,7 +914,7 @@ videoformats depend on the configuration flags of ffmpeg.")
                    "/vlc-" version ".tar.xz"))
              (sha256
               (base32
-               "1nvj00khy08sing0mdnw6virmiq579mrk5rvpx9710nlxggqgh7m"))))
+               "1lvyyahv6g9zv7m5g5qinyrwmw47zdsd5ysimb862j7kw15nvh8q"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("flex" ,flex)
@@ -2667,15 +2667,18 @@ MPEG-2, MPEG-4, DVD (VOB)...
 (define-public mediainfo
   (package
     (name "mediainfo")
-    (version "0.7.95")
+    (version "18.12")
     (source (origin
               (method url-fetch)
+              ;; Warning: This source has proved unreliable 1 time at least.
+              ;; Consider an alternate source or report upstream if this
+              ;; happens again.
               (uri (string-append "https://mediaarea.net/download/source/"
                                   name "/" version "/"
                                   name "_" version ".tar.bz2"))
               (sha256
                (base32
-                "0dy51a3i79jppmg1gi4f6h7jx4hcgnkmfim4d7d3gmnlbkjh8anv"))))
+                "1ix95ilcjlawcq6phh25cgplm3riqa2ii7ql82g8yagqs4ldqp6a"))))
     (native-inputs
      `(("autoconf" ,autoconf)
        ("automake" ,automake)
@@ -2693,10 +2696,7 @@ MPEG-2, MPEG-4, DVD (VOB)...
          (add-after 'unpack 'change-to-build-dir
            (lambda _
              (chdir "Project/GNU/CLI")
-             #t))
-         (add-after 'change-to-build-dir 'autogen
-           (lambda _
-             (invoke "sh" "autogen.sh"))))))
+             #t)))))
     (home-page "https://mediaarea.net/en/MediaInfo")
     (synopsis "Utility for reading media metadata")
     (description "MediaInfo is a utility used for retrieving technical
diff --git a/gnu/packages/virtualization.scm b/gnu/packages/virtualization.scm
index 82bde36222..d178a08413 100644
--- a/gnu/packages/virtualization.scm
+++ b/gnu/packages/virtualization.scm
@@ -6,7 +6,7 @@
 ;;; Copyright © 2017 Alex Vong <alexvong1995@gmail.com>
 ;;; Copyright © 2017 Andy Patterson <ajpatter@uwaterloo.ca>
 ;;; Copyright © 2017, 2018 Rutger Helling <rhelling@mykolab.com>
-;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2017, 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Danny Milosavljevic <dannym@scratchpost.org>
 ;;; Copyright © 2018 Sou Bunnbu <iyzsong@member.fsf.org>
 ;;; Copyright © 2018 Julien Lepiller <julien@lepiller.eu>
@@ -30,17 +30,22 @@
 (define-module (gnu packages virtualization)
   #:use-module (gnu packages)
   #:use-module (gnu packages admin)
+  #:use-module (gnu packages assembly)
   #:use-module (gnu packages attr)
   #:use-module (gnu packages autotools)
   #:use-module (gnu packages bison)
   #:use-module (gnu packages check)
+  #:use-module (gnu packages cmake)
   #:use-module (gnu packages compression)
+  #:use-module (gnu packages cross-base)
   #:use-module (gnu packages curl)
   #:use-module (gnu packages cyrus-sasl)
   #:use-module (gnu packages disk)
   #:use-module (gnu packages dns)
   #:use-module (gnu packages docbook)
   #:use-module (gnu packages documentation)
+  #:use-module (gnu packages figlet)
+  #:use-module (gnu packages firmware)
   #:use-module (gnu packages flex)
   #:use-module (gnu packages fontutils)
   #:use-module (gnu packages gettext)
@@ -72,6 +77,7 @@
   #:use-module (gnu packages textutils)
   #:use-module (gnu packages tls)
   #:use-module (gnu packages web)
+  #:use-module (gnu packages wget)
   #:use-module (gnu packages xdisorg)
   #:use-module (gnu packages xml)
   #:use-module (gnu packages xorg)
@@ -896,7 +902,7 @@ Open Container Initiative specification.")
 (define-public umoci
   (package
     (name "umoci")
-    (version "0.4.2")
+    (version "0.4.3")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -905,7 +911,7 @@ Open Container Initiative specification.")
               (file-name (string-append "umoci-" version ".tar.xz"))
               (sha256
                (base32
-                "1rq5jxcss9cmy05x9b2kh9ld57ribi8hgnx2w67jpmf343b83m4q"))))
+                "1hy3gcs8z25153qpw4rk2lispfaf2c90hv1q64xwyjxn22j9ayy9"))))
     (build-system go-build-system)
     (arguments
      '(#:import-path "github.com/openSUSE/umoci"
@@ -1103,3 +1109,206 @@ x86 CPUs, from early 386 to the most recent x86-64 Intel and AMD processors.
 Bochs can run most Operating Systems inside the emulation including Linux,
 DOS or Microsoft Windows.")
     (license license:lgpl2.0+)))
+
+(define-public xen
+  (package
+    (name "xen")
+    (version "4.11.1")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "git://xenbits.xenproject.org/xen.git")
+                    (commit (string-append "RELEASE-" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1wv1hyfii14vi9lfjmnv07h2gpm3b7kvh2p55f4yy2b40simksgk"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:configure-flags
+       (list "--enable-rpath"
+             "--disable-qemu-traditional" ; It tries to do "git clone"
+             "--disable-rombios" ; would try to "git clone" via etherboot.
+             ;; TODO: Re-enable stubdom (it's "more secure" to use it).
+             "--disable-stubdom" ; tries to "git clone" old patched newlib.
+             (string-append "--with-initddir="
+                            (assoc-ref %outputs "out")
+                            "/etc/init.d")
+             (string-append "--with-system-qemu="
+                            (assoc-ref %build-inputs "qemu")
+                            "/bin/qemu-system-i386")
+             (string-append "--with-system-seabios="
+                            (assoc-ref %build-inputs "seabios")
+                            "/share/firmware/bios.bin")
+             (string-append "--with-system-ovmf="
+                            (assoc-ref %build-inputs "ovmf")
+                            "/share/firmware/ovmf_ia32.bin"))
+       #:make-flags (list "-j" "1"
+                          "XEN_BUILD_DATE=Thu Jan  1 01:00:01 CET 1970"
+                          "XEN_BUILD_TIME=01:00:01"
+                          "XEN_BUILD_HOST="
+                          "ETHERBOOT_NICS="
+                          "SMBIOS_REL_DATE=01/01/1970"
+                          "VGABIOS_REL_DATE=01 Jan 1970"
+                          ; QEMU_TRADITIONAL_LOC
+                          ; QEMU_UPSTREAM_LOC
+                          "SYSCONFIG_DIR=/tmp/etc/default"
+                          (string-append "BASH_COMPLETION_DIR="
+                                         (assoc-ref %outputs "out")
+                                         "/etc/bash_completion.d")
+                          (string-append "BOOT_DIR="
+                                         (assoc-ref %outputs "out")
+                                         "/boot")
+                          (string-append "DEBUG_DIR="
+                                         (assoc-ref %outputs "out")
+                                         "/lib/debug")
+                          (string-append "EFI_DIR="
+                                         (assoc-ref %outputs "out")
+                                         "/lib/efi") ; TODO lib64 ?
+                          "MINIOS_UPSTREAM_URL="
+                          ;(string-append "DISTDIR="
+                          ;               (assoc-ref %outputs "out"))
+)
+       #:test-target "test"
+       #:phases
+       (modify-phases %standard-phases
+        (add-after 'unpack 'unpack-mini-os
+          (lambda* (#:key inputs #:allow-other-keys)
+            (copy-recursively (assoc-ref inputs "mini-os") "extras/mini-os")
+            #t))
+        (add-after 'unpack-mini-os 'patch
+          (lambda* (#:key inputs outputs #:allow-other-keys)
+            (substitute* "tools/firmware/Rules.mk"
+             (("override XEN_TARGET_ARCH = x86_32")
+              (string-append "override XEN_TARGET_ARCH = x86_32
+override CC = " (assoc-ref inputs "cross-gcc") "/bin/i686-linux-gnu-gcc"))
+             (("^CFLAGS =$")
+              (string-append "CFLAGS=-I" (assoc-ref inputs "cross-libc")
+                             "/include\n")))
+            (substitute* "config/x86_32.mk"
+             (("CFLAGS += -m32 -march=i686")
+              (string-append "CFLAGS += -march=i686 -I"
+                             (assoc-ref inputs "cross-libc")
+                             "/include")))
+            ;; /var is not in /gnu/store , so don't try to create it.
+            (substitute* '("tools/Makefile"
+                           "tools/xenstore/Makefile"
+                           "tools/xenpaging/Makefile")
+             (("\\$\\(INSTALL_DIR\\) .*XEN_(DUMP|LOG|RUN|LIB|PAGING)_DIR.*")
+              "\n")
+             (("\\$\\(INSTALL_DIR\\) .*XEN_(RUN|LIB)_STORED.*")
+              "\n"))
+            ;; Prevent xen from creating /etc .
+            (substitute* "tools/examples/Makefile"
+             ((" install-readmes") "")
+             ((" install-configs") ""))
+            ;; Set rpath.
+            (substitute* "tools/pygrub/setup.py"
+             (("library_dirs =")
+              ; TODO: extra_link_args = ['-Wl,-rpath=/opt/foo'],
+              (string-append "runtime_library_dirs = ['"
+                             (assoc-ref outputs "out")
+                             "/lib'],\nlibrary_dirs =")))
+            #t))
+        (add-before 'configure 'patch-xen-script-directory
+          (lambda* (#:key outputs #:allow-other-keys)
+            (substitute* '("configure"
+                           "tools/configure"
+                           "docs/configure")
+             (("XEN_SCRIPT_DIR=.*")
+              (string-append "XEN_SCRIPT_DIR="
+                             (assoc-ref outputs "out")
+                             "/etc/xen/scripts")))
+            #t))
+        (add-before 'configure 'set-environment-up
+          (lambda* (#:key make-flags #:allow-other-keys)
+             (define (cross? x)
+               (string-contains x "cross-i686-linux"))
+             (define (filter-environment! filter-predicate
+                                          environment-variable-names)
+               (for-each
+                (lambda (env-name)
+                  (let* ((env-value (getenv env-name))
+                         (search-path (search-path-as-string->list env-value))
+                         (new-search-path (filter filter-predicate
+                                                  search-path))
+                         (new-env-value (list->search-path-as-string
+                                         new-search-path ":")))
+                    (setenv env-name new-env-value)))
+                environment-variable-names))
+             (setenv "CROSS_C_INCLUDE_PATH" (getenv "C_INCLUDE_PATH"))
+             (setenv "CROSS_CPLUS_INCLUDE_PATH" (getenv "CPLUS_INCLUDE_PATH"))
+             (setenv "CROSS_LIBRARY_PATH" (getenv "LIBRARY_PATH"))
+             (filter-environment! cross?
+              '("CROSS_C_INCLUDE_PATH" "CROSS_CPLUS_INCLUDE_PATH"
+                "CROSS_LIBRARY_PATH"))
+             (filter-environment! (lambda (e) (not (cross? e)))
+              '("C_INCLUDE_PATH" "CPLUS_INCLUDE_PATH"
+                "LIBRARY_PATH"))
+             ;; Guix tries to be helpful and automatically adds
+             ;; mini-os-git-checkout/include to the include path,
+             ;; but actually we don't want it to be there (yet).
+             (filter-environment! (lambda (e)
+                                    (not
+                                     (string-contains e
+                                      "mini-os-git-checkout")))
+              '("C_INCLUDE_PATH" "CPLUS_INCLUDE_PATH"
+                "LIBRARY_PATH"))
+            (setenv "EFI_VENDOR" "guix")
+             #t))
+        (replace 'build
+          (lambda* (#:key make-flags #:allow-other-keys)
+            (apply invoke "make" "world" make-flags))))))
+    (inputs
+     `(("acpica" ,acpica) ; TODO: patch iasl invocation.
+       ("bridge-utils" ,bridge-utils) ; TODO: patch invocations.
+       ("glib" ,glib)
+       ("iproute" ,iproute) ; TODO: patch invocations.
+       ("libaio" ,libaio)
+       ("libx11" ,libx11)
+       ("libyajl" ,libyajl)
+       ("ncurses" ,ncurses)
+       ("openssl" ,openssl)
+       ("ovmf" ,ovmf)
+       ("pixman" ,pixman)
+       ("qemu" ,qemu-minimal)
+       ("seabios" ,seabios)
+       ("util-linux" ,util-linux) ; uuid
+       ; TODO: ocaml-findlib, ocaml-nox.
+       ("xz" ,xz) ; for liblzma
+       ("zlib" ,zlib)))
+    (native-inputs
+     `(("dev86" ,dev86)
+       ("bison" ,bison)
+       ("cmake" ,cmake)
+       ("figlet" ,figlet)
+       ("flex" ,flex)
+       ("gettext" ,gettext-minimal)
+       ("libnl" ,libnl)
+       ("mini-os"
+       ,(origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "http://xenbits.xen.org/git-http/mini-os.git")
+               (commit (string-append "xen-RELEASE-" version))))
+         (sha256
+          (base32
+           "1i8pcl19n60i2m9vlg79q3nknpj209c9ic5x10wxaicx45kc107f"))
+         (file-name "mini-os-git-checkout")))
+       ("perl" ,perl)
+       ; TODO: markdown
+       ("pkg-config" ,pkg-config)
+       ("python" ,python-2)
+       ("wget" ,wget)
+       ("cross-gcc" ,(cross-gcc "i686-linux-gnu"
+                                #:xbinutils (cross-binutils "i686-linux-gnu")
+                                #:libc (cross-libc "i686-linux-gnu")))
+       ("cross-libc" ,(cross-libc "i686-linux-gnu")) ; header files
+       ("cross-libc-static" ,(cross-libc "i686-linux-gnu") "static")))
+    (home-page "https://xenproject.org/")
+    (synopsis "Xen Virtual Machine Monitor")
+    (description "This package provides the Xen Virtual Machine Monitor
+which is a hypervisor.")
+    ;; TODO: Some files are licensed differently.  List those.
+    (license license:gpl2)
+    (supported-systems '("i686-linux" "x86_64-linux" "armhf-linux"))))
diff --git a/gnu/packages/xml.scm b/gnu/packages/xml.scm
index fd4c3fea2c..05bc8aa13e 100644
--- a/gnu/packages/xml.scm
+++ b/gnu/packages/xml.scm
@@ -12,7 +12,7 @@
 ;;; Copyright © 2016 Ben Woodcroft <donttrustben@gmail.com>
 ;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2016, 2017 Nils Gillmann <ng0@n0.is>
-;;; Copyright © 2016, 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2016, 2017, 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2016, 2017, 2018 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2017 Adriano Peluso <catonano@gmail.com>
 ;;; Copyright © 2017 Gregor Giesen <giesen@zaehlwerk.net>
@@ -686,14 +686,14 @@ This module provide functions which simplify writing tests for
 (define-public perl-xml-compile
   (package
     (name "perl-xml-compile")
-    (version "1.60")
+    (version "1.61")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://cpan/authors/id/M/MA/MARKOV/"
                                   "XML-Compile-" version ".tar.gz"))
               (sha256
                (base32
-                "04vv7wy5v1l38xsfdbacvyd90qircvnrs2f3ysljm1nhq8mycmwm"))))
+                "13dvsaj8simivj867rkjlf7hhvvcwlahnhk70zf8cq2xbg8wmf7x"))))
     (build-system perl-build-system)
     (propagated-inputs
      `(("perl-carp" ,perl-carp)
diff --git a/gnu/packages/xorg.scm b/gnu/packages/xorg.scm
index 364a37e34d..7e3c1aad1c 100644
--- a/gnu/packages/xorg.scm
+++ b/gnu/packages/xorg.scm
@@ -14,7 +14,7 @@
 ;;; Copyright © 2017, 2018 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2017, 2018, 2019 Rutger Helling <rhelling@mykolab.com>
 ;;; Copyright © 2017 Arun Isaac <arunisaac@systemreboot.net>
-;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Kei Kebreau <kkebreau@posteo.net>
 ;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
 ;;; Copyright © 2018 Benjamin Slade <slade@jnanam.net>
@@ -2236,7 +2236,7 @@ X server: 'handhelds', 'redglass' and 'whiteglass'.")
 (define-public xcursorgen
   (package
     (name "xcursorgen")
-    (version "1.0.6")
+    (version "1.0.7")
     (source
       (origin
         (method url-fetch)
@@ -2246,7 +2246,7 @@ X server: 'handhelds', 'redglass' and 'whiteglass'.")
                ".tar.bz2"))
         (sha256
           (base32
-            "0v7nncj3kaa8c0524j7ricdf4rvld5i7c3m6fj55l5zbah7r3j1i"))))
+            "0ggbv084cavp52hjgcz3vdj0g018axs0m23c03lpc5sgn92gidim"))))
     (build-system gnu-build-system)
     (inputs
       `(("libxcursor" ,libxcursor)