https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118245
--- Comment #12 from Nathaniel Shead <nshead at gcc dot gnu.org> --- (In reply to Richard Biener from comment #11) > (In reply to Nathaniel Shead from comment #10) > > This is fixed for GCC 15. Unfortunately this patch isn't appropriate for > > backporting as it will cause ABI changes without also backporting the fix > > for PR107741 (r15-7147-g685c458fb4775c). > > > > Instead I'll probably end up reverting the changes to parser.cc in > > r14-9232-g3685fae23bb008 since the modules testcases are less important, > > unless I can find a way to fix it while keeping the existing ABI behaviour. > > Did you get to this? Ah no, I'd forgotten. I've just sent https://gcc.gnu.org/pipermail/gcc-patches/2025-May/683617.html with a candidate patch for the reversion.