anchor.diff:      homepage = "https://github.com/clMathLibraries/clBLAS";
       description = "A software library containing BLAS functions written in OpenCL";
       longDescription = ''
  -      This package contains a library of BLAS functions on top of OpenCL. 
  +      This package contains a library of BLAS functions on top of OpenCL.
       '';
       license = licenses.asl20;
       maintainers = with maintainers; [ artuuge ];
  
positive.code:   '';
  
    cmakeFlags = [
      "-DUSE_SYSTEM_GTEST=ON"
    ];
  
    buildInputs = [
  
negative.code:     blas
      python
      boost
    ] ++ stdenv.lib.optionals (!stdenv.isDarwin) [
      ocl-icd
      opencl-headers
  