anchor.diff: -{ lib, stdenv, fetchFromGitHub, cmake, fuse, zlib, bzip2, openssl, libxml2, icu, lzfse }:
  +{ lib, stdenv, fetchFromGitHub, cmake, fuse, zlib, bzip2, openssl, libxml2, icu, lzfse, libiconv }:
   
   stdenv.mkDerivation rec {
     pname = "darling-dmg";
  
positive.code:   meta = with lib; {
      homepage = "https://www.darlinghq.org/";
      description = "Darling lets you open macOS dmgs on Linux";
      platforms = platforms.linux;
      license = licenses.gpl3;
      maintainers = with maintainers; [ Luflosi ];
    };
  }
  
negative.code:   };
  
    nativeBuildInputs = [ cmake ];
    buildInputs = [ fuse openssl zlib bzip2 libxml2 icu lzfse ]
      ++ lib.optionals stdenv.isDarwin [ libiconv ];
  
    CXXFLAGS = [
      "-DCOMPILE_WITH_LZFSE=1"
  