{stdenv, fetchzip, ecj, jamvm_1_5_4, gnu-classpath_98, ant-bootstrap}: stdenv.mkDerivation rec {
    pname = "ant";
    version = "1.6.5";

    src = fetchzip {
        url = "https://archive.apache.org/dist/ant/source/apache-ant-1.6.5-src.tar.gz";
        hash = "sha256-UJaFPX3KtFa06B4eDu2ZNMO+GreTtdEYbhGrKr3soUI=";
    };

    patches = [./ant.patch];

    nativeBuildInputs = [jamvm_1_5_4 ant-bootstrap];
    env = {
        JAVA_HOME="${gnu-classpath_98}";
        CLASSPATH="${ecj}/bin/ecj.jar";
        ANT_OPTS="-Dbuild.compiler=org.eclipse.jdt.core.JDTCompilerAdapter -Dbootclasspath=${gnu-classpath_98}/share/classpath/glibj.zip";
    };

    buildPhase = ''
        ant
    '';

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