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Fix sigwait namespace (bug 21550).

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sigwait was added to POSIX in 1995; it is not in older POSIX versions
or XPG4 / XPG4.2.  Thus it should be declared only if
__USE_POSIX199506; signal.h wrongly declares it for __USE_POSIX.
(sigwaitinfo is correctly conditioned on __USE_POSIX199309.)  This
patch fixes the condition on the declaration of sigwait.

Tested for x86_64.  Because of other namespace problems this does not
allow any conform/ XFAILs to be removed.

	[BZ #21550]
	* signal/signal.h (sigwait): Only declare if [__USE_POSIX199506].
This commit is contained in:
Joseph Myers 2017-06-12 17:38:20 +00:00
parent 5a103908c0
commit a0f8b11520
2 changed files with 7 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,8 @@
2017-06-12 Joseph Myers <joseph@codesourcery.com>
[BZ #21550]
* signal/signal.h (sigwait): Only declare if [__USE_POSIX199506].
2017-06-12 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add

2
signal/signal.h
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@ -240,12 +240,14 @@ extern int sigaction (int __sig, const struct sigaction *__restrict __act,
extern int sigpending (sigset_t *__set) __THROW __nonnull ((1));
# ifdef __USE_POSIX199506
/* Select any of pending signals from SET or wait for any to arrive.
This function is a cancellation point and therefore not marked with
__THROW. */
extern int sigwait (const sigset_t *__restrict __set, int *__restrict __sig)
__nonnull ((1, 2));
# endif /* Use POSIX 1995. */
# ifdef __USE_POSIX199309
/* Select any of pending signals from SET and place information in INFO.