From: Ben Gras <ben@minix3.org>
Date: Sun, 4 Sep 2005 18:16:44 +0000 (+0000)
Subject: Make compiling with 0 pty's or rs232 lines possible (Al's patch)
X-Git-Tag: v3.1.0~195
X-Git-Url: http://zhaoyanbai.com/repos/FAQ?a=commitdiff_plain;h=a32fa468f3fa3adde70ba2878b3770f77db8e56c;p=minix.git

Make compiling with 0 pty's or rs232 lines possible (Al's patch)
---

diff --git a/drivers/tty/tty.c b/drivers/tty/tty.c
index 805e555f0..9961f393f 100644
--- a/drivers/tty/tty.c
+++ b/drivers/tty/tty.c
@@ -204,8 +204,10 @@ PUBLIC void main(void)
 	case HARD_INT: {		/* hardware interrupt notification */
 		if (tty_mess.NOTIFY_ARG & kbd_irq_set)
 			kbd_interrupt(&tty_mess);/* fetch chars from keyboard */
+#if NR_RS_LINES > 0
 		if (tty_mess.NOTIFY_ARG & rs_irq_set)
 			rs_interrupt(&tty_mess);/* serial I/O */
+#endif
 		expire_timers();	/* run watchdogs of expired timers */
 		continue;		/* contine to check for events */
 	}
@@ -346,8 +348,10 @@ message *m_ptr;
 	}
   }
 
+#if NR_PTYS > 0
   if (!event_found)
   	event_found = pty_status(m_ptr);
+#endif
 
   if (! event_found) {
 	/* No events of interest were found. Return an empty message. */
@@ -877,8 +881,10 @@ tty_t *tp;			/* TTY to check for events. */
   }
   if(tp->tty_select_ops)
   	select_retry(tp);
+#if NR_PTYS > 0
   if(ispty(tp))
   	select_retry_pty(tp);
+#endif
 }
 
 /*===========================================================================*