{ stdenv, fetchurl, zlib }: assert zlib != null; stdenv.mkDerivation rec { name = "libpng-1.2.44"; src = fetchurl { url = "mirror://sourceforge/libpng/${name}.tar.gz"; md5 = "89b62f8daaeeab1342e307d6d1411ff1"; }; propagatedBuildInputs = [ zlib ]; meta = { description = "The official reference implementation for the PNG file format"; homepage = http://www.libpng.org/pub/png/libpng.html; license = "free-non-copyleft"; # http://www.libpng.org/pub/png/src/libpng-LICENSE.txt }; }