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# SPDX-FileCopyrightText: 2003-2012 Eelco Dolstra
# SPDX-FileCopyrightText: 2009-2011 Ludovic Courtès
# SPDX-FileCopyrightText: 2009-2010 Rob Vermaas
# SPDX-FileCopyrightText: 2010 Lluís Batlle i Rossell
# SPDX-License-Identifier: MIT
# SPDX-FileCopyrightText: 2023 Nguyễn Gia Phong
# SPDX-License-Identifier: AGPL-3.0-or-later

{ lib, stdenv, fetchurl, pcre, libiconv }:
stdenv.mkDerivation rec {
  pname = "gnugrep";
  version = "2.11";

  src = fetchurl {
    url = "mirror://gnu/grep/grep-${version}.tar.xz";
    sha256 = "sha256-AwMfin39wyimdIMebt+qoHkxKn9BhUUiksaaKj4rDuk=";
  };

  buildInputs = [ pcre libiconv ];

  # On macOS, force use of mkdir -p, since Grep's fallback
  # (./install-sh) is broken.
  preConfigure = ''
    export MKDIR_P="mkdir -p"
  '';
  doCheck = false;

  meta = with lib; {
    homepage = "https://www.gnu.org/software/grep";
    description = "GNU implementation of the Unix grep command";
    longDescription = ''
      The grep command searches one or more input files for lines
      containing a match to a specified pattern.  By default, grep
      prints the matching lines.
    '';
    license = licenses.gpl3Plus;
    platforms = platforms.all;
    mainProgram = "grep";
  };
}