{stdenv, fetchFromGitHub, jdk6, ant_1_7, commons-lang_1}: stdenv.mkDerivation rec {
    pname = "commons-cli";
    version = "1.0";
    outJar = "commons-cli-1.0-beta-2-dev.jar";

    src = fetchFromGitHub {
        owner = "apache";
        repo = pname;
        rev = "CLI_1_0";
        hash = "sha256-HwS1RdyGNuPZJoKWQX9X9KwNs013M1T5NBLSn4N9fKo=";
    };

    nativeBuildInputs = [jdk6 ant_1_7];

    env = {
        JAVA_HOME="${jdk6}";
        CLASSPATH="${commons-lang_1}/commons-lang-1.0.jar";
    };

    buildPhase = ''
        mkdir ./lib
        ant dist -Dnoget=true
    '';

    installPhase = ''
        mkdir $out
        cp -r ./dist/* $out/
    '';
}