PS_NOCLDWAIT
(PS_NOCLDWAIT | PS_CLDSIGIGN)) {
p2->p_sigacts->ps_flag |= PS_NOCLDWAIT;
ps->ps_flag &= ~(PS_NOCLDWAIT | PS_CLDSIGIGN);
if (sig == SIGCHLD && ps->ps_flag & PS_NOCLDWAIT)
ps->ps_flag &= ~PS_NOCLDWAIT;
ps->ps_flag |= PS_NOCLDWAIT;
ps->ps_flag &= ~PS_NOCLDWAIT;