https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100486
--- Comment #38 from Óscar Fuentes <gcc_bugzilla at axeitado dot com> --- (In reply to Eric Botcazou from comment #37) > > It comes from the MinGW-w64 CRT. > > We do not have it. Can you (temporarily) remove it and see what happens? After moving away that file, exceptions still are broken, but that can be due to a tainted libstdc++ dll. Do you want a full rebuild of gcc?