https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100486
--- Comment #49 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 I can confirm that the libstdc++ DLL available from there is broken in exactly the same way as the one from GCC 11: it fails to register its unwinding tables, i.e. the call to __register_frame_info on startup is missing. That's managed by the pair of crtbegin.o/ctrend.o object files from the compiler but the intermediate __gcc_register_frame is never called.
