anchor.diff:      qtxmlpatterns
     ];
   
  +  # Paraview links into the Python library, resolving symbolic links on the way,
  +  # so we need to put the correct sitePackages (with numpy) back on the path
  +  postInstall = ''
  +    wrapProgram $out/bin/paraview \
  +      --set PYTHONPATH "${python.pkgs.numpy}/${python.sitePackages}"
  +    wrapProgram $out/bin/pvbatch \
  +      --set PYTHONPATH "${python.pkgs.numpy}/${python.sitePackages}"
  +    wrapProgram $out/bin/pvpython \
  +      --set PYTHONPATH "${python.pkgs.numpy}/${python.sitePackages}"
  +  '';
   
     meta = {
       homepage = http://www.paraview.org/;
  
positive.code: {
  stdenv, fetchFromGitHub, cmake
  ,qtbase, qttools, python, libGLU_combined
  ,libXt, qtx11extras, qtxmlpatterns
  }:
  
negative.code: 
    nativeBuildInputs = [
      cmake
      makeWrapper
    ];
  
    buildInputs = [
      python
      python.pkgs.numpy
      libGLU_combined
      libXt
      qtbase
  