A patch for signal/signal.h

[H.J. Lu]

> 
> hjl@lucon.org (H.J. Lu) writes:
> 
> > Sat Oct 24 17:58:18 1998  H.J. Lu  <hjl@gnu.org>
> > 
> > 	* signal/signal.h (timespec, siginfo_t, sigwait, sigwaitinfo,
> > 	sigtimedwait, sigqueue): Protect with __USE_POSIX4.
> 
> Similar situation as for time.h.  Using __POSIX199309 should be the
> correct way.
> 

The POSIX96 test in VSX-PCT uses

-D_POSIX_C_SOURCE=199506L

But it doesn't want to see those POSIX.4 stuff.

-- 
H.J. Lu (hjl@gnu.org)