compat_50_sys_mq_timedreceive
(sy_call_t *)compat_50_sys_mq_timedreceive },
check_syscall_args(compat_50_sys_mq_timedreceive)
int compat_50_sys_mq_timedreceive(struct lwp *, const struct compat_50_sys_mq_timedreceive_args *, register_t *);