https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66347
--- Comment #2 from kargl at gcc dot gnu.org --- (In reply to kargl from comment #1) > (In reply to Walter Brisken from comment #0) > > > > gfortran -save-temps -finit-local-zero -fno-automatic -fno-underscoring -C > > -w -g -O2 -c -o crash.o crash3.f > > > > The problem is related to the -finit-local-zero option. > The obvious workaround is to not use that option. I'll > also recommend not using the -fno-underscoring option > as the documentation warns about its use. Dang misread my terminal output. -fno-automatic is the guilty option. Drop that option and things compile.