anchor.diff:      substituteInPlace setup.py --replace "pytest>=2" ""
     '';
   
  +  preBuild = ''
  +    export HOME=$(mktemp -d)
  +  '';
  +
     # gcc: error: pygpu_language_opencl.cpp: No such file or directory
     doCheck = false;
   
  
positive.code:   version = "2018.2.2";
  
    checkInputs = [ pytest ];
    buildInputs = [ opencl-headers ocl-icd ];
  
    propagatedBuildInputs = [ numpy cffi pytools decorator appdirs six Mako ];
  
  
negative.code: , six
  , opencl-headers
  , ocl-icd
  , pybind11
  }:
  
  buildPythonPackage rec {
  