https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100486
--- Comment #42 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > After removing the spurious crtend.o and rebuilding libstdc++ following > those instructions, the new libstdc++-6.dll still crashes the same way. Can you remove the crtbegin.o too, just to be sure, rebuild libstdc++ and upload the DLL at the same URL as before?