https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67343
--- Comment #8 from Jason Merrill <jason at gcc dot gnu.org> --- Created attachment 49829 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49829&action=edit Follow-on patch And this one fixes ->:: according to the current ABI, but also holding for the issue resolution.