__libc_maybe_call
__libc_maybe_call (__pthread_mutex_destroy, (&(NAME).mutex), 0)
__libc_maybe_call (__pthread_mutex_lock, (&(NAME).mutex), 0)
__libc_maybe_call (__pthread_mutex_trylock, (&(NAME).mutex), 0)
__libc_maybe_call (__pthread_mutex_unlock, (&(NAME).mutex), 0)