{ stdenv, fetchurl, zlib }: assert zlib != null; stdenv.mkDerivation rec { name = "libpng-1.5.19"; src = fetchurl { url = "mirror://sourceforge/libpng/${name}.tar.xz"; sha256 = "1s990cdsdlbb78aq4sj2vq2849p2nbbbnbk5p8f9w45rn0v5q98y"; }; propagatedBuildInputs = [ zlib ]; doCheck = true; passthru = { inherit zlib; }; meta = { description = "The official reference implementation for the PNG file format"; homepage = http://www.libpng.org/pub/png/libpng.html; license = stdenv.lib.licenses.libpng; maintainers = with stdenv.lib.maintainers; [ fuuzetsu ]; }; }