{ lib, stdenv, fetchurl, makeWrapper, xz, }: # Note: this package is used for bootstrapping fetchurl, and thus # cannot use fetchpatch! All mutable patches (generated by GitHub or # cgit) that are needed here should be included directly in Nixpkgs as # files. stdenv.mkDerivation rec { pname = "gzip"; version = "1.13"; src = fetchurl { url = "mirror://gnu/gzip/${pname}-${version}.tar.xz"; hash = "sha256-dFTraTXbF8ZlVXbC4bD6vv04tNCTbg+H9IzQYs6RoFc="; }; outputs = [ "out" "man" "info" ]; enableParallelBuilding = true; nativeBuildInputs = [ xz.bin makeWrapper ]; makeFlags = [ "SHELL=/bin/sh" "GREP=grep" # gzip 1.12 doesn't build `zless` unless it can find `less`, but we # can avoid having `less` as a build input if we just override these. "ZLESS_MAN=zless.1" "ZLESS_PROG=zless" ]; # 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/* '' # run gzip with "-n" when $GZIP_NO_TIMESTAMPS (set by stdenv's setup.sh) is set to stop gzip from adding timestamps # to archive headers: https://github.com/NixOS/nixpkgs/issues/86348 # if changing so that there's no longer a .gzip-wrapped then update copy in make-bootstrap-tools.nix + '' wrapProgram $out/bin/gzip \ --add-flags "\''${GZIP_NO_TIMESTAMPS:+-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 = lib.platforms.all; license = lib.licenses.gpl3Plus; mainProgram = "gzip"; }; }