From adce8de5c3bcb93df908ebbf51b89567629f3d91 Mon Sep 17 00:00:00 2001
From: Doug Rabson <dfr@FreeBSD.org>
Date: Sat, 22 Mar 1997 14:03:08 +0000
Subject: [PATCH] Don't indirect through a NULL pointer in rl_strpbrk.  This
 makes filename completion work in GDB.

---
 contrib/libreadline/complete.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/contrib/libreadline/complete.c b/contrib/libreadline/complete.c
index f9e27ebddfb1..df17e497b74d 100644
--- a/contrib/libreadline/complete.c
+++ b/contrib/libreadline/complete.c
@@ -1528,6 +1528,9 @@ rl_strpbrk (string1, string2)
 {
   register char *scan;
 
+  if (string2 == NULL)
+    return ((char *)NULL);
+
   for (; *string1; string1++)
     {
       for (scan = string2; *scan; scan++)