http://bugs.winehq.org/show_bug.cgi?id=14789
--- Comment #36 from Markus Elfring Markus.Elfring@web.de 2009-11-28 08:02:47 --- (In reply to comment #33)
It's been explained to you in the comment #12 already, sig_atomic_t buys you nothing either.
The use of this data type improves the portability for setting of flags in signal handlers.