nixpkgs/pkgs/development/interpreters/spidermonkey/default.nix

args: with args;

stdenv.mkDerivation rec {
  name = "spidermonkey-1.7";
  src = fetchurl {
    url = ftp://ftp.mozilla.org/pub/mozilla.org/js/js-1.7.0.tar.gz;
	sha256 = "12v6v2ccw1y6ng3kny3xw0lfs58d1klylqq707k0x04m707kydj4";
  };

  buildInputs = [ readline ];

  postUnpack = "sourceRoot=\${sourceRoot}/src";

  makefileExtra = ./Makefile.extra;
  makefile = "Makefile.ref";
  patchPhase = "cat ${makefileExtra} >> ${makefile};
  sed -e 's/ -ltermcap/ -lncurses/' -i ${makefile}";

  makeFlags="-f ${makefile} JS_DIST=\${out} BUILD_OPT=1 JS_READLINE=1";
}