https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96550
--- Comment #6 from Roger Wolff <R.E.Wolff at BitWizard dot nl> --- So, I've added "-Wall" to my Makefile to get ALL warnings, giving me the biggest chance of finding bugs through the compiler telling me you have a bug on line X of file Y. So IMHO -Wnull-dereference should be part of -Wall. I'm not a compiler guy. I just use the stuff. So now the question becomes: Why is that warning not part of -Wall ?