https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100486
--- Comment #45 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > Fore completeness: The "exceptions not working" problem now also crept into > our v10.3 build with the last rebuild. Maybe some dependency change in the > last two months, but no idea :/ > > https://github.com/msys2/MINGW-packages/issues/9771 Can you confirm that this is with the same compiler sources as the previous 10.3 version that works? Do you apply local changes to them?