;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2015 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages m4)
  #:use-module (guix licenses)
  #:use-module (gnu packages)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system gnu))

(define-public m4
  (package
   (name "m4")
   (version "1.4.18")
   (source (origin
            (method url-fetch)
            (uri (string-append "mirror://gnu/m4/m4-"
                                version ".tar.xz"))
            (sha256
             (base32
              "01sfjd5a4waqw83bibvmn522g69qfqvwig9i2qlgy154l1nfihgj"))))
   (build-system gnu-build-system)
   (arguments
    `(;; Explicitly disable tests when cross-compiling, otherwise 'make check'
      ;; proceeds and fails, unsurprisingly.
      #:tests? ,(not (%current-target-system))

      #:phases (alist-cons-before
                'check 'pre-check
                (lambda* (#:key inputs #:allow-other-keys)
                  ;; Fix references to /bin/sh.
                  (let ((bash (assoc-ref inputs "bash")))
                    (for-each patch-shebang
                              (find-files "tests" "\\.sh$"))
                    (substitute* (find-files "tests"
               <pre>
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012 Nikita Karetnikov &lt;nikita@karetnikov.org&gt;
;;; Copyright © 2013, 2017, 2020, 2021 Ludovic Courtès &lt;ludo@gnu.org&gt;
;;; Copyright © 2013, 2015 Andreas Enge &lt;andreas@enge.fr&gt;
;;; Copyright © 2015-2019, 2021, 2024 Efraim Flashner &lt;efraim@flashner.co.il&gt;
;;; Copyright © 2015, 2017 Leo Famulari &lt;leo@famulari.name&gt;
;;; Copyright © 2015, 2017 Cyril Roelandt &lt;tipecaml@gmail.com&gt;
;;; Copyright © 2016 Sou Bunnbu &lt;iyzsong@gmail.com&gt;
;;; Copyright © 2016 Hartmut Goebel &lt;h.goebel@crazy-compilers.com&gt;
;;; Copyright © 2016 Da