Fix siginterrupt namespace (bug 21597).

The siginterrupt function is XSI-shaded in POSIX.  glibc wrongly
declares it in <signal.h> for non-XSI POSIX.1:2008.  This patch fixes
the conditionals (moving it into the __USE_XOPEN_EXTENDED ||
__USE_MISC block as the minimum conservative change, although it's not
clear this obsolescent function should be declared by default).

Tested for x86_64.

	[BZ #21597]
	* signal/signal.h (siginterrupt): Make declaration conditional on
	[__USE_XOPEN_EXTENDED || __USE_MISC].
This commit is contained in:
Joseph Myers 2017-06-19 12:18:46 +00:00
parent 21f8859dd0
commit ed8cfb00c2
2 changed files with 9 additions and 5 deletions

View File

@ -1,5 +1,9 @@
2017-06-19 Joseph Myers <joseph@codesourcery.com>
[BZ #21597]
* signal/signal.h (siginterrupt): Make declaration conditional on
[__USE_XOPEN_EXTENDED || __USE_MISC].
[BZ #21584]
* signal/signal.h: Make includes of <bits/sigstack.h> and
<bits/ss_flags.h> conditional on [__USE_XOPEN_EXTENDED ||

View File

@ -296,11 +296,6 @@ extern int sigreturn (struct sigcontext *__scp) __THROW;
# define __need_size_t
# include <stddef.h>
/* If INTERRUPT is nonzero, make signal SIG interrupt system calls
(causing them to fail with EINTR); if INTERRUPT is zero, make system
calls be restarted after signal SIG. */
extern int siginterrupt (int __sig, int __interrupt) __THROW;
# include <bits/types/stack_t.h>
# if defined __USE_XOPEN || defined __USE_XOPEN2K8
/* This will define `ucontext_t' and `mcontext_t'. */
@ -309,6 +304,11 @@ extern int siginterrupt (int __sig, int __interrupt) __THROW;
#endif /* Use POSIX.1-2008 or X/Open Unix. */
#if defined __USE_XOPEN_EXTENDED || defined __USE_MISC
/* If INTERRUPT is nonzero, make signal SIG interrupt system calls
(causing them to fail with EINTR); if INTERRUPT is zero, make system
calls be restarted after signal SIG. */
extern int siginterrupt (int __sig, int __interrupt) __THROW;
# include <bits/sigstack.h>
# include <bits/ss_flags.h>