{stdenv, fetchurl, zlib ? null, zlibSupport ? true}: assert zlibSupport -> zlib != null; stdenv.mkDerivation { name = "python-2.4.3"; src = fetchurl { url = http://www.python.org/ftp/python/2.4.3/Python-2.4.3.tar.bz2; md5 = "141c683447d5e76be1d2bd4829574f02"; }; buildInputs = [ (if zlibSupport then zlib else null) ]; inherit zlibSupport; configureFlags = "--enable-shared"; }