[Bug driver/120148] -fno-builtin suppresses -Wformat warnings

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120148

--- Comment #3 from Sam James <sjames at gcc dot gnu.org> ---
-> https://sourceforge.net/p/valgrind/mailman/message/59181622/