--- alsa-lib-1.0.27.2.orig/src/conf.c +++ alsa-lib-1.0.27.2/src/conf.c @@ -427,8 +427,8 @@ #ifndef DOC_HIDDEN #ifdef HAVE_LIBPTHREAD -static pthread_mutex_t snd_config_update_mutex = - PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP; +static pthread_mutex_t snd_config_update_mutex; +static pthread_once_t snd_config_update_mutex_once = PTHREAD_ONCE_INIT; #endif struct _snd_config { @@ -472,8 +472,19 @@ #ifdef HAVE_LIBPTHREAD +static void snd_config_init_mutex(void) +{ + pthread_mutexattr_t attr; + + pthread_mutexattr_init(&attr); + pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE); + pthread_mutex_init(&snd_config_update_mutex, &attr); + pthread_mutexattr_destroy(&attr); +} + static inline void snd_config_lock(void) { + pthread_once(&snd_config_update_mutex_once, snd_config_init_mutex); pthread_mutex_lock(&snd_config_update_mutex); }