{stdenv, fetchurl}: stdenv.mkDerivation { name = "muparser-1.30"; src = fetchurl { url = mirror://sourceforge/muparser/muparser_v130.tar.gz; sha256 = "164wak2sva6z9vq3anrciz1npyk2x3wqkz6xwp9ld3gmdqbdn8s4"; }; }