{stdenv, ant_1_5_3}: stdenv.mkDerivation rec {
    pname = "ant-optional";
    version = "1.5.3-1";
    outJar = "lib/optional.jar";
    org = "ant";

    dontUnpack = true;
    dontConfigure = true;
    dontBuild = true;

    installPhase = ''
        mkdir -p $out/lib
        ln -s ${ant_1_5_3}/lib/optional.jar $out/lib/optional.jar
    '';
}