http://bugs.winehq.org/show_bug.cgi?id=16413
--- Comment #6 from Alexandre Julliard julliard@winehq.org 2009-01-12 09:30:12 --- The right fix is in glibc, since the gcc guys have decided that it can't be fixed by simply adding a void cast. Glibc should make sure that the warning is only enabled on functions where the return value really needs to always be checked. That's certainly not the case for things like fwrite().