I have never encountered any problems with headerfiles requiring gcc:ism or c99 features (and I think the opposite problem is more common: header files being older than ANSI-C). People tend to be conservative. So I think it could be worth it. But of course I can't say for sure that there won't be any problems.
/ Niels Möller ()
Previous text:
2002-11-10 12:11: Subject: Re: psparser.c
And what about system header files? Can we know for sure that no header file provided by someone other than us will break with such a flag?
/ Marcus Comstedt (ACROSS) (Hail Ilpalazzo!)