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conf: Check the availability of PTHREAD_MUTEX_RECURSIVE

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Check the availability of PTHREAD_MUTEX_RECURSIVE in configure script
and use it only when possible.  A fairly old version of glibc still
seems working, but just to be sure.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2017-05-16 16:02:59 +02:00
parent 3cf3fbebdd
commit e757a95fc9
3 changed files with 13 additions and 0 deletions
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2
src/conf.c
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@ -490,7 +490,9 @@ static void snd_config_init_mutex(void)
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
#ifdef HAVE_PTHREAD_MUTEX_RECURSIVE
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
#endif
pthread_mutex_init(&snd_config_update_mutex, &attr);
pthread_mutexattr_destroy(&attr);
}