pthread_mutexattr_destroy
pthread_mutexattr_destroy(&attr);
pthread_mutexattr_destroy(&attr);
int pthread_mutexattr_destroy(pthread_mutexattr_t *);
__strong_alias(__libc_mutexattr_destroy,pthread_mutexattr_destroy)
pthread_mutexattr_destroy(&att);
PTHREAD_REQUIRE(pthread_mutexattr_destroy(&mattr));