===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/awk/lib.c,v
retrieving revision 1.20
retrieving revision 1.21
diff -u -r1.20 -r1.21
--- src/usr.bin/awk/lib.c	2011/09/28 19:27:18	1.20
+++ src/usr.bin/awk/lib.c	2015/03/27 10:09:30	1.21
@@ -1,4 +1,4 @@
-/*	$OpenBSD: lib.c,v 1.20 2011/09/28 19:27:18 millert Exp $	*/
+/*	$OpenBSD: lib.c,v 1.21 2015/03/27 10:09:30 tobiasu Exp $	*/
 /****************************************************************
 Copyright (C) Lucent Technologies 1997
 All Rights Reserved
@@ -648,7 +648,8 @@
 	static int been_here = 0;
 	extern char ebuf[], *ep;
 
-	if (compile_time == 2 || compile_time == 0 || been_here++ > 0)
+	if (compile_time == 2 || compile_time == 0 || been_here++ > 0 ||
+	    ebuf == ep)
 		return;
 	p = ep - 1;
 	if (p > ebuf && *p == '\n')