if, after building WorkList, it is NULL (because there are no entries), don't

bother trying to qsort() or traverse it.

noticed when the diagnostic assert()s in my copy of qsort() complained
about a NULL pointer...

usr.sbin/sendmail/src/queue.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: queue.c,v 1.24 1998/01/09 08:11:24 perry Exp $	*/
+/*	$NetBSD: queue.c,v 1.25 1999/08/12 00:19:07 lukem Exp $	*/
 
 /*
  * Copyright (c) 1983, 1995-1997 Eric P. Allman
@@ -1072,6 +1072,8 @@ orderq(doall)
 	(void) closedir(f);
 	wn++;
 
+	if (WorkList == NULL)
+		return (0);
 	wc = min(wn, WorkListSize);
 	if (wc > MaxQueueRun && MaxQueueRun > 0)
 		wc = MaxQueueRun;