anchor.diff:  
     enableParallelBuilding = true;
   
  +  passthru.tests.static = pkgsStatic.libdeflate;
     meta = with lib; {
       description = "Fast DEFLATE/zlib/gzip compressor and decompressor";
       license = licenses.mit;
       homepage = "https://github.com/ebiggers/libdeflate";
       platforms = platforms.unix;
  -    maintainers = with maintainers; [ orivej ];
  +    maintainers = with maintainers; [ orivej kaction ];
     };
   }
  
positive.code:     sha256 = "sha256-P7YbuhP2/zJCpE9dxZev1yy5oda8WKAHY84ZLTL8gVs=";
    };
  
    postPatch = ''
      substituteInPlace Makefile --replace /usr/local $out
    '';
  
    nativeBuildInputs = lib.optional stdenv.hostPlatform.isDarwin fixDarwinDylibNames;
  
  
negative.code: { stdenv, lib, fetchpatch, fetchFromGitHub, fixDarwinDylibNames, pkgsStatic }:
  
  stdenv.mkDerivation rec {
    pname = "libdeflate";
  