self: super: with self; rec { version = "3.3"; src = fetchFromGitHub { owner = "libffi"; repo = "libffi"; rev = "v${version}"; hash = "sha256-1lqbL/C+WtnOa5DxgT81CGiywzPzBf4pBCWjdI+5oQA="; }; nativeBuildInputs = [ autoreconfHook ]; }