anchor.diff:    pythonPath = [ dockbarx ];
   
     nativeBuildInputs = [ pkgconfig wafHook ];
  -  buildInputs = [ python2 vala gtk2 pythonPackages.wrapPython ]
  +  buildInputs = [ python2 vala_0_46 gtk2 pythonPackages.wrapPython ]
       ++ (with xfce; [ libxfce4util xfce4-panel xfconf xfce4-dev-tools ])
       ++ pythonPath;
   
  
positive.code: { stdenv, pkgconfig, fetchFromGitHub, python2, bash, vala
  , dockbarx, gtk2, xfce, pythonPackages, wafHook }:
  
  stdenv.mkDerivation rec {
  
negative.code:   '';
  
    meta = with stdenv.lib; {
      homepage = "https://github.com/TiZ-EX1/xfce4-dockbarx-plugin";
      description = "A plugins to embed DockbarX into xfce4-panel";
      license = licenses.mit;
      platforms = platforms.linux;
  