anchor.diff:      "CC=${stdenv.cc.targetPrefix}gcc"
     ];
   
  -  postInstall = optionalString pythonSupport ''
  -      wrapProgram $out/bin/ndiff --prefix PYTHONPATH : "$(toPythonPath $out)" --prefix PYTHONPATH : "$PYTHONPATH"
  -  '' + optionalString graphicalSupport ''
  -      wrapProgram $out/bin/zenmap --prefix PYTHONPATH : "$(toPythonPath $out)" --prefix PYTHONPATH : "$PYTHONPATH" --prefix PYTHONPATH : $(toPythonPath $pygtk)/gtk-2.0 --prefix PYTHONPATH : $(toPythonPath $pygobject)/gtk-2.0 --prefix PYTHONPATH : $(toPythonPath $pycairo)/gtk-2.0
  +  pythonPath = with python2.pkgs; optionals graphicalSupport  [
  +    pygtk pysqlite pygobject2 pycairo
  +  ];
  +
  +  nativeBuildInputs = [ pkgconfig ] ++ optionals graphicalSupport [ python2.pkgs.wrapPython ];
  +  buildInputs = [ pcre liblinear libssh2 libpcap openssl ] ++ optionals graphicalSupport (with python2.pkgs; [
  +    python2 libX11 gtk2
  +  ]);
  +
  +  postInstall = optionalString graphicalSupport ''
  +    buildPythonPath "$out $pythonPath"
  +    patchPythonScript $out/bin/ndiff
  +    patchPythonScript $out/bin/zenmap
     '';
   
  -  nativeBuildInputs = [ pkgconfig ];
  -  buildInputs = with python2Packages; [ libpcap openssl ]
  -    ++ optionals pythonSupport [ makeWrapper python ]
  -    ++ optionals graphicalSupport [
  -      libX11 gtk2 pygtk pysqlite pygobject2 pycairo
  -    ];
  +  enableParallelBuilding = true;
   
     doCheck = false; # fails 3 tests, probably needs the net
   
  
positive.code: 
    configureFlags = [
      (if withLua then "--with-liblua=${lua5_3}" else "--without-liblua")
    ]
      ++ optional (!pythonSupport) "--without-ndiff"
      ++ optional (!graphicalSupport) "--without-zenmap"
      ;
  
    makeFlags = optionals (stdenv.buildPlatform != stdenv.hostPlatform) [
      "AR=${stdenv.cc.bintools.targetPrefix}ar"
  
negative.code: { stdenv, fetchurl, fetchpatch, libpcap, pkgconfig, openssl, lua5_3
  , pcre, liblinear, libssh2
  , graphicalSupport ? false
  , libX11 ? null
  , gtk2 ? null
  , python2 ? null
  , makeWrapper ? null
  , withLua ? true
  }:
  
  with stdenv.lib;
  
  stdenv.mkDerivation rec {
    name = "nmap${optionalString graphicalSupport "-graphical"}-${version}";
    version = "7.80";
  
  