{stdenv, fetchurl, perl, expat}: assert perl != null && expat != null; stdenv.mkDerivation { name = "perl-XML-Parser-2.34"; builder = ./builder.sh; src = fetchurl { url = http://catamaran.labs.cs.uu.nl/dist/tarballs/XML-Parser-2.34.tar.gz; md5 = "84d9e0001fe01c14867256c3fe115899"; }; perl = perl; expat = expat; }