On Tue, Dec 15, 2009 at 12:17:04AM +0100, Andi Hellmund wrote: >Hey Josh, > >you don't see any warnings because gcc suppresses warning messages for >system headers due to "the assumption that they usually do not indicate real >problems and would only make the compiler output harder to read." [taken >from man gcc --> -Wsystem-headers]. You could also see that in the >preprocessed file *.i by looking at those lines: > ># 297 "/usr/include/wchar.h" 3 4 > >This number "3" tells the compiler (including preprocessor) to not emit >warnings for system headers (a full listing of flags for the # <line> ><function> <flags> directive could be found in the CPP user manual, >chapter 9 "preprocessor output") Ah! I don't feel so stupid now (though I probably should have looked harder to begin with). Thank you for the explanation. >Though, from my understanding of the man page option -Wsystem-headers, >after enabling this, you should get the warnings for system headers, but >I wasn't able to get them printed with my quite recent version of gcc. :-) I didn't get the warning using -Wsystem-headers on gcc 4.3 or 4.4 either, but I'm not exactly panicing about it :). josh
