rem: int user_acquire_sem_etc(sem_id id, int count, int flags, bigtime_t timeout)
add: status_t user_acquire_sem_etc(sem_id id, int32 count, uint32 flags, bigtime_t timeout)
context: int user_acquire_sem_etc(sem_id id, int count, int flags, bigtime_t timeout){	flags = flags | B_CAN_INTERRUPT;	return acquire_sem_etc(id, count, flags, timeout);}