diff -c -r1.1 tty.c
*** /tmp/,RCSt1005870	Thu Jul 17 19:49:16 1997
--- tty.c	Thu Jul 17 19:17:05 1997
***************
*** 1377,1383 ****
  		if (!ISSET(tp->t_state, TS_ZOMBIE))
  			SET(tp->t_state, TS_CONNECTED);
  		wakeup(TSA_CARR_ON(tp));
! 		ttwakeup(tp);
  		ttwwakeup(tp);
  	}
  	return (1);
--- 1377,1392 ----
  		if (!ISSET(tp->t_state, TS_ZOMBIE))
  			SET(tp->t_state, TS_CONNECTED);
  		wakeup(TSA_CARR_ON(tp));
! 		/* Don't generate SIGIO's for DCD if CLOCAL */
! 		if (ISSET(tp->t_cflag, CLOCAL)) {
! 			register int t_state;
! 
! 			t_state = tp->t_state;
! 			CLR(tp->t_state, TS_ASYNC);
! 			ttwakeup(tp);
! 			tp->t_state = t_state;
! 		} else
! 			ttwakeup(tp);
  		ttwwakeup(tp);
  	}
  	return (1);