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common: Fix get_signal_name for GNU/Linux.

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* common/signal.c (get_signal_name): Use sigdescr_np if available.
* configure.ac: Check the function.

--

Backport master commit of:
	c4ba712736

GnuPG-bug-id: 5568
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2021-08-26 14:22:19 +09:00
parent f64e0f63d6
commit d5f9481186
2 changed files with 4 additions and 2 deletions
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4
common/signal.c
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@ -87,7 +87,9 @@ get_signal_name( int signum )
{
/* Note that we can't use strsignal(), because it is not
reentrant. */
#if HAVE_DECL_SYS_SIGLIST && defined(NSIG)
#if HAVE_SIGDESCR_NP
return sigdescr_np (signum);
#elif HAVE_DECL_SYS_SIGLIST && defined(NSIG)
return (signum >= 0 && signum < NSIG) ? sys_siglist[signum] : "?";
#else
return NULL;