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{ stdenv, fetchurl, xz }:
stdenv.mkDerivation rec {
pname = "gzip";
version = "1.10";
src = fetchurl {
url = "mirror://gnu/gzip/${pname}-${version}.tar.xz";
sha256 = "1h6p374d3j8d4cdfydzls021xa2yby8myc0h8d6m8bc7k6ncq9c4";
};
outputs = [ "out" "man" "info" ];
enableParallelBuilding = true;
nativeBuildInputs = [ xz.bin ];
makeFlags = [ "SHELL=/bin/sh" "GREP=grep" ];
# Many gzip executables are shell scripts that depend upon other gzip
# executables being in $PATH. Rather than try to re-write all the
# internal cross-references, just add $out/bin to PATH at the top of
# all the executables that are shell scripts.
preFixup = ''
sed -i '1{;/#!\/bin\/sh/aPATH="'$out'/bin:$PATH"
}' $out/bin/*
'';
meta = {
homepage = "https://www.gnu.org/software/gzip/";
description = "GNU zip compression program";
longDescription =
''gzip (GNU zip) is a popular data compression program written by
Jean-loup Gailly for the GNU project. Mark Adler wrote the
decompression part.
We developed this program as a replacement for compress because of
the Unisys and IBM patents covering the LZW algorithm used by
compress. These patents made it impossible for us to use compress,
and we needed a replacement. The superior compression ratio of gzip
is just a bonus.
'';
platforms = stdenv.lib.platforms.all;
license = stdenv.lib.licenses.gpl3Plus;
};
}
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