https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100347
--- Comment #16 from Iain Sandoe <iains at gcc dot gnu.org> --- (In reply to Erik Schnetter from comment #15) > One thing that e.g. changed is that there is now a newer version of Apple > Clang. XCode 12.5 is broken, with compare-debug error : see PR100340 (already reported to Apple, waiting for a response) If it's something else, please let me know how to reproduce it and we can take that up with Apple too.