[Bug c/96550] gcc is smart in figuring out a non-returning function.

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96550

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Roger Wolff from comment #6)
> So, I've added "-Wall" to my Makefile to get ALL warnings,

It doesn't enable ALL warnings, as documented in the manual.