anchor.diff:      description = "A color management framework for visual effects and animation";
       license = licenses.bsd3;
       maintainers = [ maintainers.goibhniu ];
  -    platforms = platforms.linux;
  +    platforms = platforms.unix;
     };
   }
  
positive.code: { stdenv, fetchurl, cmake, unzip }:
  
  stdenv.mkDerivation rec {
    name = "opencolorio-${version}";
  
negative.code: 
    outputs = [ "bin" "out" "dev" ];
  
    buildInputs = [ cmake unzip ] ++ lib.optional stdenv.isDarwin boost;
  
    cmakeFlags = lib.optional stdenv.isDarwin "-DOCIO_USE_BOOST_PTR=ON";
  
    postInstall = ''
      rm $out/lib/*.a
  