anchor.diff:  
     installPhase = ''
       mkdir -p $out/{lib,share/doc}
  -    cp "build/"*release*"/"*so* $out/lib/
  +    cp "build/"*release*"/"*${SHLIB_EXT}* $out/lib/
       mv include $out/
       rm $out/include/index.html
       mv doc/html $out/share/doc/tbb
  
positive.code: { stdenv, fetchurl }:
  
  stdenv.mkDerivation {
    name = "tbb-4.4-u2";
  
  
negative.code:       represents a higher-level, task-based parallelism that abstracts platform
        details and threading mechanisms for scalability and performance.
      '';
      platforms = with stdenv.lib.platforms; linux ++ darwin;
      maintainers = with stdenv.lib.maintainers; [ simons thoughtpolice ];
    };
  }
  