[Bug c/79879] Integer overflow in functions from scanf() family in MinGW, Cygwin, Borland/Embarcadero C environments

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79879

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Try with -Wall -Wextra instead of just -Wextra.  IIRC -Wformat is only enabled
for -Wall and not with -Wextra.