{ stdenv , fetchurl , xz , writeText }: 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/* ''; # set GZIP env variable to "-n" to stop gzip from adding timestamps # to archive headers: https://github.com/NixOS/nixpkgs/issues/86348 setupHook = writeText "setup-hook" '' export GZIP="-n" ''; 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; }; }