Which platforms don't HAVE_POSIX_SIGNALS?

Other than Windows I guess. Sometimes the system call restart behaviour
is annoying, but you can work around that using sigaction. But can that
be relied apon?

Thanks in advance,
--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a
> tool for doing 5% of the work and then sitting around waiting for someone
> else to do the other 95% so you can sue them.