https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68271
--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Quick temporary fix is easy, just make pragma_kind in cp/parser.h 8 bit, and change id < 64 to id < 256 in c-family and update the comment. This I believe shouldn't make the C++ token any larger. And then incrementally we can improve this by dropping pragma_kind.