http://bugs.winehq.org/show_bug.cgi?id=21405
--- Comment #30 from Rafał Mużyło galtgendo@o2.pl 2010-01-25 09:15:05 --- But the other point is that most of other _FORTIFY_SOURCE checks are either just noisy with warnings ("return unused" and "format string") or aborts when there most probably is a problem (like those in strn[cpy|cat]).
So either glibc people impose too strict check or there is a way to make it work even with that check.