anchor.diff:  
     nativeBuildInputs = [
       cmake
  +    makeWrapper
     ];
   
     buildInputs = [
       python
  +    python.pkgs.numpy
       libGLU_combined
       libXt
       qtbase
  
positive.code:     qtxmlpatterns
    ];
  
  
    meta = {
      homepage = http://www.paraview.org/;
  
negative.code: {
  stdenv, fetchFromGitHub, cmake, makeWrapper
  ,qtbase, qttools, python, libGLU_combined
  ,libXt, qtx11extras, qtxmlpatterns
  }:
  