--- 9term/display.c.orig	Thu Dec 15 23:48:28 1994
+++ 9term/display.c	Fri Feb 11 10:08:04 2000
@@ -114,7 +114,7 @@
 delwin(Widget w, XEvent *event, String *params, Cardinal *n)
 {
   if (w == _toplevel)
-	killpg(SIGHUP);
+	O_killpg(SIGHUP);
 }
 
 /*
@@ -185,7 +185,7 @@
 		else if (!strcasecmp(s, "plan9"))
 			kbdmode = PLAN9;
 	if (s = get_resource(resource, class, "p9font", "P9font"))
-		setenv("font", s, 1);
+		O_setenv("font", s, 1);
 	if (s = get_resource(resource, class, "highwater", "Highwater"))
 		highwater = atoi(s);
 	if (s = get_resource(resource, class, "lowwater", "Lowwater"))
@@ -230,7 +230,7 @@
 #endif
 		/* export window id to environment */
 	sprintf(id, "%d", XtWindow(_toplevel));
-	setenv("WINDOWID", id, 1);
+	O_setenv("WINDOWID", id, 1);
 
 		/* register mouse and keyboard events */
 	einit(Ekeyboard | Emouse);