On Tue, May 14, 2013 at 8:52 PM, Dara Hazeghi <dhazeghi@xxxxxxxxx> wrote: > I've been dealing with a fair amount preprocessed C code, which includes directives that look like: > #0 "/usr/local/gcctrunk/lib/gcc/x86_64unknownlinuxgnu/4.9.0/include/stddef.h" 3 > > > The problem I've encountered is that when I compile files with such code in them using gcc, the usual warnings from the compiler are suppressed. I'm guessing that this is intended behavior? If so, is there a way to disable it (re-enabling the warnings)? The -Wsystem-headers option. Ian