anchor.diff:  
     nativeBuildInputs = [
       cmake
  +    ninja
       yasm
     ];
   
  
positive.code: 
      nativeBuildInputs = [
        cmake
        yasm
      ];
  
  
negative.code:     ];
  
      postInstall = ''
        # Remove unused files
        rm -rvf $out/includes
        rm -rvf $out/lib/pkgconfig
  
        mv -v $out/lib/libx265.a $out/lib/libx265_main12.a
      '';
  
      enableParallelBuilding = true;
  