guix/gnu/packages/linux.scm

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017 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 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 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2016 Christopher Allan Webber <cwebber@dustycloud.org>
;;; Copyright © 2016, 2017 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2016 Alex Kost <alezost@gmail.com>
;;; Copyright © 2016 Raymond Nicholson <rain1@openmailbox.org>
;;; Copyright © 2016 Mathieu Lirzin <mthl@gnu.org>
;;; Copyright © 2016 Nicolas Goaziou <mail@nicolasgoaziou.fr>
;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2016 David Craven <david@craven.ch>
;;; Copyright © 2016 John Darrington <jmd@gnu.org>
;;; Copyright © 2016 Marius Bakke <mbakke@fastmail.com>
;;; Copyright © 2016 Rene Saavedra <rennes@openmailbox.org>
;;; Copyright © 2016 ng0 <ng0@libertad.pw>
;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
;;; Copyright © 2017 José Miguel Sánchez García <jmi2k@openmailbox.com>
;;; Copyright © 2017 Gábor Boskovits <boskovits@gmail.com>
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@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/>.

(define-module (gnu packages linux)
  #:use-module (gnu packages)
  #:use-module (gnu packages acl)
  #:use-module (gnu packages admin)
  #:use-module (gnu packages algebra)
  #:use-module (gnu packages attr)
  #:use-module (gnu packages autotools)
  #:use-module (gnu packages base)
  #:use-module (gnu packages bash)
  #:use-module (gnu packages bison)
  #:use-module (gnu packages calendar)
  #:use-module (gnu packages check)
  #:use-module (gnu packages crypto)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages databases)
  #:use-module (gnu packages docbook)
  #:use-module (gnu packages documentation)
  #:use-module (gnu packages elf)
  #:use-module (gnu packages flex)
  #:use-module (gnu packages freedesktop)
  #:use-module (gnu packages gcc)
  #:use-module (gnu packages gettext)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages gnuzilla)
  #:use-module (gnu packages gperf)
  #:use-module (gnu packages gtk)
  #:use-module (gnu packages libusb)
  #:use-module (gnu packages man)
  #:use-module (gnu packages maths)
  #:use-module (gnu packages ncurses)
  #:use-module (gnu packages networking)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages pciutils)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages popt)
  #:use-module (gnu packages pulseaudio)
  #:use-module (gnu packages python)
  #:use-module (gnu packages readline)
  #:use-module (gnu packages rrdtool)
  #:use-module (gnu packages slang)
  #:use-module (gnu packages texinfo)
  #:use-module (gnu packages tls)
  #:use-module (gnu packages video)
  #:use-module (gnu packages xiph)
  #:use-module (gnu packages xml)
  #:use-module (gnu packages xdisorg)
  #:use-module (gnu packages xorg)
  #:use-module (guix build-system cmake)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system python)
  #:use-module (guix build-system trivial)
  #:use-module (guix download)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix packages)
  #:use-module (guix utils)
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-2)
  #:use-module (srfi srfi-26)
  #:use-module (ice-9 match))

(define-public (system->linux-architecture arch)
  "Return the Linux architecture name for ARCH, a Guix system name such as
\"x86_64-linux\" or a target triplet such as \"arm-linux-gnueabihf\"."
  (let ((arch (car (string-split arch #\-))))
    (cond ((string=? arch "i686") "i386")
          ((string-prefix? "mips" arch) "mips")
          ((string-prefix? "arm" arch) "arm")
          ((string-prefix? "aarch64" arch) "arm64")
          (else arch))))

(define (linux-libre-urls version)
  "Return a list of URLs for Linux-Libre VERSION."
  (list (string-append
         "http://linux-libre.fsfla.org/pub/linux-libre/releases/"
         version "-gnu/linux-libre-" version "-gnu.tar.xz")

        ;; XXX: Work around <http://bugs.gnu.org/14851>.
        (string-append
         "ftp://alpha.gnu.org/gnu/guix/mirror/linux-libre-"
         version "-gnu.tar.xz")

        ;; Maybe this URL will become valid eventually.
        (string-append
         "mirror://gnu/linux-libre/" version "-gnu/linux-libre-"
         version "-gnu.tar.xz")))

(define-public linux-libre-headers
  (package
    (name "linux-libre-headers")
    (version "4.4.18")
    (source (origin
             (method url-fetch)
             (uri (linux-libre-urls version))
             (sha256
              (base32
               "0k8k17in7dkjd9d8zg3i8l1ax466dba6bxw28flxizzyq8znljps"))))
    (build-system gnu-build-system)
    (native-inputs `(("perl" ,perl)))
    (arguments
     `(#:modules ((guix build gnu-build-system)
                  (guix build utils)
                  (srfi srfi-1))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (replace 'build
           (lambda _
             (let ((arch ,(system->linux-architecture
                          (or (%current-target-system)
                              (%current-system)))))
               (setenv "ARCH" arch)
               (format #t "`ARCH' set to `~a'~%" (getenv "ARCH"))

               (and (zero? (system* "make" "defconfig"))
                    (zero? (system* "make" "mrproper" "headers_check"))))))
         (replace 'install
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out")))
               (and (zero? (system* "make"
                                    (string-append "INSTALL_HDR_PATH=" out)
                                    "headers_install"))
                    (begin
                      (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))))))
       #:allowed-references ()
       #:tests? #f))
    (home-page "http://www.gnu.org/software/linux-libre")
    (synopsis "GNU Linux-Libre kernel headers")
    (description "Headers of the Linux-Libre kernel.")
    (license license:gpl2)))

(define %boot-logo-patch
  ;; Linux-Libre boot logo featuring Freedo and a gnu.
  (origin
    (method url-fetch)
    (uri (string-append "http://www.fsfla.org/svn/fsfla/software/linux-libre/"
                        "lemote/gnewsense/branches/3.16/100gnu+freedo.patch"))
    (sha256
     (base32
      "1hk9swxxc80bmn2zd2qr5ccrjrk28xkypwhl4z0qx4hbivj7qm06"))))

(define* (kernel-config arch #:key variant)
  "Return the absolute file name of the Linux-Libre build configuration file
for ARCH and optionally VARIANT, or #f if there is no such configuration."
  (let* ((name (string-append "linux-libre-"
                              (if variant (string-append variant "-") "")
                              (if (string=? "i386" arch) "i686" arch) ".conf"))
         (file (string-append "gnu/packages/" name)))
    (search-path %load-path file)))

(define %default-extra-linux-options
  `(;; https://lists.gnu.org/archive/html/guix-devel/2014-04/msg00039.html
    ("CONFIG_DEVPTS_MULTIPLE_INSTANCES" . #t)
    ;; Modules required for initrd:
    ("CONFIG_NET_9P" . m)
    ("CONFIG_NET_9P_VIRTIO" . m)
    ("CONFIG_VIRTIO_BLK" . m)
    ("CONFIG_VIRTIO_NET" . m)
    ("CONFIG_VIRTIO_PCI" . m)
    ("CONFIG_VIRTIO_BALLOON" . m)
    ("CONFIG_VIRTIO_MMIO" . m)
    ("CONFIG_FUSE_FS" . m)
    ("CONFIG_CIFS" . m)
    ("CONFIG_9P_FS" . m)))

(define (config->string options)
  (string-join (map (match-lambda
                      ((option . 'm)
                       (string-append option "=m"))
                      ((option . #t)
                       (string-append option "=y"))
                      ((option . #f)
                       (string-append option "=n")))
                    options)
               "\n"))

(define* (make-linux-libre version hash supported-systems
                           #:key
                           ;; A function that takes an arch and a variant.
                           ;; See kernel-config for an example.
                           (extra-version #f)
                           (configuration-file #f)
                           (defconfig "defconfig")
                           (extra-options %default-extra-linux-options)
                           (patches (list %boot-logo-patch)))
  (package
    (name (if extra-version
              (string-append "linux-libre-" extra-version)
              "linux-libre"))
    (version version)
    (source (origin
              (method url-fetch)
              (uri (linux-libre-urls version))
              (sha256 (base32 hash))
              (patches patches)))
    (supported-systems supported-systems)
    (build-system gnu-build-system)
    (native-inputs
     `(("perl" ,perl)
       ("bc" ,bc)
       ("openssl" ,openssl)
       ("kmod" ,kmod)
       ,@(match (and configuration-file
                     (configuration-file
                      (system->linux-architecture
                       (or (%current-target-system) (%current-system)))
                      #:variant (version-major+minor version)))
           (#f                                    ;no config for this platform
            '())
           ((? string? config)
            `(("kconfig" ,config))))))
    (arguments
     `(#:modules ((guix build gnu-build-system)
                  (guix build utils)
                  (srfi srfi-1)
                  (ice-9 match))
       #:phases
       (modify-phases %standard-phases
         (replace 'configure
           (lambda* (#:key inputs native-inputs target #:allow-other-keys)
             ;; Avoid introducing timestamps
             (setenv "KCONFIG_NOTIMESTAMP" "1")
             (setenv "KBUILD_BUILD_TIMESTAMP" (getenv "SOURCE_DATE_EPOCH"))

             ;; Set ARCH and CROSS_COMPILE
             (let ((arch ,(system->linux-architecture
                           (or (%current-target-system)
                               (%current-system)))))
               (setenv "ARCH" arch)
               (format #t "`ARCH' set to `~a'~%" (getenv "ARCH"))

               (when target
                 (setenv "CROSS_COMPILE" (string-append target "-"))
                 (format #t "`CROSS_COMPILE' set to `~a'~%"
                         (getenv "CROSS_COMPILE"))))

             (setenv "EXTRA_VERSION" ,extra-version)

             (let ((build  (assoc-ref %standard-phases 'build))
                   (config (assoc-ref inputs "kconfig")))

               ;; Use a custom kernel configuration file or a default
               ;; configuration file.
               (if config
                   (begin
                     (copy-file config ".config")
                     (chmod ".config" #o666))
                   (system* "make" ,defconfig))

               ;; Appending works even when the option wasn't in the
               ;; file.  The last one prevails if duplicated.
               (let ((port (open-file ".config" "a"))
                     (extra-configuration ,(config->string extra-options)))
                 (display extra-configuration port)
                 (close-port port))

               (zero? (system* "make" "oldconfig")))))
         (replace 'install
           (lambda* (#:key inputs native-inputs outputs #:allow-other-keys)
             (let* ((out    (assoc-ref outputs "out"))
                    (moddir (string-append out "/lib/modules"))
                    (dtbdir (string-append out "/lib/dtbs"))
                    (kmod   (assoc-ref (or native-inputs inputs) "kmod")))
               ;; Install kernel image, kernel configuration and link map.
               (for-each (lambda (file) (install-file file out))
                         (find-files "." "^(\\.config|bzImage|zImage|vmlinuz|System\\.map)$"))
               ;; Install device tree files
               (for-each (lambda (file) (install-file file dtbdir))
                         (find-files "." "\\.dtb$"))
               ;; Install kernel modules
               (mkdir-p moddir)
               (zero? (system* "make"
                               (string-append "DEPMOD=" kmod "/bin/depmod")
                               (string-append "MODULE_DIR=" moddir)
                               (string-append "INSTALL_PATH=" out)
                               (string-append "INSTALL_MOD_PATH=" out)
                               "INSTALL_MOD_STRIP=1"
                               "modules_install"))))))
       #:tests? #f))
    (home-page "http://www.gnu.org/software/linux-libre/")
    (synopsis "100% free redistribution of a cleaned Linux kernel")
    (description
     "GNU Linux-Libre is a free (as in freedom) variant of the Linux kernel.
It has been modified to remove all non-free binary blobs.")
    (license license:gpl2)))

(define %intel-compatible-systems '("x86_64-linux" "i686-linux"))

(define %linux-libre-version "4.10")
(define %linux-libre-hash "167zzgkivpqsp07did25wjqsswddzp3gifcdkq7xk00llxlmspla")

(define-public linux-libre
  (make-linux-libre %linux-libre-version
                    %linux-libre-hash
                    %intel-compatible-systems
                    #:configuration-file kernel-config))

(define-public linux-libre-4.9
  (make-linux-libre "4.9.11"
                    "1gypfg2984zr4z7hihnl3bbpxnk1mrqbynb6xd8ad2v2z04aw13q"
                    %intel-compatible-systems
                    #:configuration-file kernel-config))

(define-public linux-libre-4.4
  (make-linux-libre "4.4.50"
                    "0c157kk0vgrb1fsyy4q3czqdg4npgql82n6p303afy8ylh2w6d3l"
                    %intel-compatible-systems
                    #:configuration-file kernel-config))

(define-public linux-libre-4.1
  (make-linux-libre "4.1.38"
                    "165kmzglhg63hn7y4q7r6cb2dpsljxiq1czvgyx0bkd1vd2bcvsa"
                    %intel-compatible-systems
                    #:configuration-file kernel-config))

(define-public linux-libre-arm-generic
  (make-linux-libre %linux-libre-version
                    %linux-libre-hash
                    '("armhf-linux")
                    #:defconfig "multi_v7_defconfig"
                    #:extra-version "arm-generic"))


;;;
;;; Pluggable authentication modules (PAM).
;;;

(define-public linux-pam
  (package
    (name "linux-pam")
    (version "1.3.0")
    (source
     (origin
      (method url-fetch)
      (uri (string-append
            "http://www.linux-pam.org/library/"
            "Linux-PAM-" version ".tar.bz2"))
      (sha256
       (base32
        "1fyi04d5nsh8ivd0rn2y0z83ylgc0licz7kifbb6xxi2ylgfs6i4"))
      (patches (search-patches "linux-pam-no-setfsuid.patch"))))

    (build-system gnu-build-system)
    (native-inputs
     `(("flex" ,flex)

       ;; TODO: optional dependencies
       ;; ("libxcrypt" ,libxcrypt)
       ;; ("cracklib" ,cracklib)
       ))
    (arguments
     '(;; Most users, such as `shadow', expect the headers to be under
       ;; `security'.
       #:configure-flags (list (string-append "--includedir="
                                              (assoc-ref %outputs "out")
                                              "/include/security"))

       ;; XXX: Tests won't run in chroot, presumably because /etc/pam.d
       ;; isn't available.
       #:tests? #f))
    (home-page "http://www.linux-pam.org/")
    (synopsis "Pluggable authentication modules for Linux")
    (description
     "A *Free* project to implement OSF's RFC 86.0.
Pluggable authentication modules are small shared object files that can
be used through the PAM API to perform tasks, like authenticating a user
at login.  Local and dynamic reconfiguration are its key features.")
    (license license:bsd-3)))

(define-public linux-pam-1.2
  (package
    (inherit linux-pam)
    (version "1.2.1")
    (source
     (origin
      (method url-fetch)
      (uri (string-append
            "http://www.linux-pam.org/library/"
            "Linux-PAM-" version ".tar.bz2"))
      (sha256
       (base32
        "1n9lnf9gjs72kbj1g354v1xhi2j27aqaah15vykh7cnkq08i4arl"))
      (patches (search-patches "linux-pam-no-setfsuid.patch"))))))


;;;
;;; Miscellaneous.
;;;

(define-public psmisc
  (package
    (name "psmisc")
    (version "22.20")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "mirror://sourceforge/psmisc/psmisc/psmisc-"
                          version ".tar.gz"))
      (sha256
       (base32
        "052mfraykmxnavpi8s78aljx8w87hyvpx8mvzsgpjsjz73i28wmi"))))
    (build-system gnu-build-system)
    (inputs `(("ncurses" ,ncurses)))
    (home-page "http://psmisc.sourceforge.net/")
    (synopsis
     "Small utilities that use the proc file system")
    (description
     "This PSmisc package is a set of some small useful utilities that
use the proc file system.  We're not about changing the world, but
providing the system administrator with some help in common tasks.")
    (license license:gpl2+)))

(define-public util-linux
  (package
    (name "util-linux")
    (version "2.28.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://kernel.org/linux/utils/"
                                  name "/v" (version-major+minor version) "/"
                                  name "-" version ".tar.xz"))
              (sha256
               (base32
                "03xnaw3c7pavxvvh1vnimcr44hlhhf25whawiyv8dxsflfj4xkiy"))
              (patches (search-patches "util-linux-tests.patch"))
              (modules '((guix build utils)))
              (snippet
               ;; We take the 'logger' program from GNU Inetutils and 'kill'
               ;; from GNU Coreutils.
               '(begin
                  (substitute* "configure"
                    (("build_logger=yes") "build_logger=no")
                    (("build_kill=yes") "build_kill=no"))
                  #t))))
    (build-system gnu-build-system)
    (outputs '("out"
               "static"))      ; >2 MiB of static .a libraries
    (arguments
     `(#:configure-flags (list "--disable-use-tty-group"

                               ;; Install completions where our
                               ;; bash-completion package expects them.
                               (string-append "--with-bashcompletiondir="
                                              (assoc-ref %outputs "out")
                                              "/etc/bash_completion.d"))
       #:phases (modify-phases %standard-phases
                  (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)))
                  (add-before
                   'check 'pre-check
                   (lambda* (#:key inputs outputs #:allow-other-keys)
                     (let ((out (assoc-ref outputs "out"))
                           (net (assoc-ref inputs "net-base")))
                       ;; Change the test to refer to the right file.
                       (substitute* "tests/ts/misc/mcookie"
                         (("/etc/services")
                          (string-append net "/etc/services")))
                       #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"))
                       (with-directory-excursion out
                         (for-each (lambda (file)
                                     (rename-file file
                                                  (string-append static "/"
                                                                 file)))
                                   (find-files "lib" "\\.a$")))
                       #t))))))
    (inputs `(("zlib" ,zlib)
              ("ncurses" ,ncurses)))
    (native-inputs
     `(("perl" ,perl)
       ("net-base" ,net-base)))                   ;for tests
    (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
utilities.  It provides dmesg and includes tools for working with file systems,
block devices, UUIDs, TTYs, and many other tools.")

    ;; Note that util-linux doesn't use the same license for all the
    ;; code.  GPLv2+ is the default license for a code without an
    ;; explicitly defined license.
    (license (list license:gpl3+ license:gpl2+ license:gpl2 license:lgpl2.0+
                   license:bsd-4 license:public-domain))))

(define-public procps
  (package
    (name "procps")
    (version "3.3.12")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/procps-ng/Production/"
                                  "procps-ng-" version ".tar.xz"))
              (sha256
               (base32
                "1m57w6jmry84njd5sgk5afycbglql0al80grx027kwqqcfw5mmkf"))))
    (build-system gnu-build-system)
    (arguments
     '(#:modules ((guix build utils)
                  (guix build gnu-build-system)
                  (srfi srfi-1)
                  (srfi srfi-26))
       #:phases
       (modify-phases %standard-phases
         (add-before 'check 'disable-strtod-test
           (lambda _
             ;; Disable the 'strtod' test, which fails on 32-bit systems.
             ;; This is what upstream does:
             ;; <https://gitlab.com/procps-ng/procps/commit/100afbc1491be388f1429021ff65d969f4b1e08f>.
             (substitute* "Makefile"
               (("^(TESTS|check_PROGRAMS) = .*$" all)
                (string-append "# " all "\n")))
             #t))
         (add-after
          'install 'post-install
          ;; Remove commands and man pages redudant with
          ;; Coreutils.
          (lambda* (#:key outputs #:allow-other-keys)
            (let* ((out (assoc-ref outputs "out"))
                   (dup (append-map (cut find-files out <>)
                                    '("^kill" "^uptime"))))
              (for-each delete-file dup)
              #t))))))
    (inputs `(("ncurses" ,ncurses)))
    (home-page "https://gitlab.com/procps-ng/procps/")
    (synopsis "Utilities that give information about processes")
    (description
     "Procps is the package that has a bunch of small useful utilities
that give information about processes using the Linux /proc file system.
The package includes the programs ps, top, vmstat, w, kill, free,
slabtop, and skill.")
    (license license:gpl2)))

(define-public usbutils
  (package
    (name "usbutils")
    (version "008")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "mirror://kernel.org/linux/utils/usb/usbutils/"
                          "usbutils-" version ".tar.xz"))
      (sha256
       (base32
        "132clk14j4nm8crln2jymdbbc2vhzar2j2hnxyh05m79pbq1lx24"))))
    (build-system gnu-build-system)
    (inputs
     `(("libusb" ,libusb)
       ("eudev" ,eudev-with-hwdb)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://www.linux-usb.org/")
    (synopsis
     "Tools for working with USB devices, such as lsusb")
    (description
     "Tools for working with USB devices, such as lsusb.")
    (license license:gpl2+)))

(define-public e2fsprogs
  (package
    (name "e2fsprogs")
    (version "1.42.13")
    (source (origin
             (method url-fetch)
             (uri (string-append
                   "mirror://kernel.org/linux/kernel/people/tytso/"
                   name "/v" version "/"
                   name "-" version ".tar.xz"))
             (sha256
              (base32
               "1ix0b83zgw5n0p2grh2961c6796m92yr2jqc2sbr23x3lfsp8r71"))
             (modules '((guix build utils)))
             (snippet
              '(begin
                 (substitute* "MCONFIG.in"
                   (("INSTALL_SYMLINK = /bin/sh")
                    "INSTALL_SYMLINK = sh"))

                 ;; Do not include a timestamp in libext2fs.info.gz.
                 (substitute* "doc/Makefile.in"
                   (("gzip -9")
                    "gzip -9n"))))))
    (build-system gnu-build-system)
    (inputs `(("util-linux" ,util-linux)))