{ stdenv, fetchurl }: stdenv.mkDerivation rec { name = "gzip-1.5"; src = fetchurl { url = "mirror://gnu/gzip/${name}.tar.xz"; sha256 = "0wx1nqk709kx75cwp2axachnbxryp4gyl06qxn5nl95184w0mhls"; }; meta = { homepage = http://www.gnu.org/software/gzip/; description = "Gzip, the 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. ''; license = "GPLv3+"; maintainers = [ stdenv.lib.maintainers.ludo ]; }; }