{stdenv, fetchFromGitHub, jdk6, ant_1_7}: stdenv.mkDerivation rec {
    pname = "log4j";
    version = "1.2.8";
    outJar = "lib/log4j-1.2.8.jar";

    src = fetchFromGitHub {
        owner = "apache";
        repo = pname;
        rev = "e87c632e10235c397fcc485cca3b94b8d9fed593";
        hash = "sha256-CoLhJTF0Wj2EZ2gfB9RXwj/XVfrNpHElplJzRPUzCbg=";
    };

    patches = [./log4j.patch];

    nativeBuildInputs = [jdk6 ant_1_7];

    env = {
        JAVA_HOME="${jdk6}";
    };

    buildPhase = ''
        ant dist
    '';

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