From a2232470c27151ba0c1c37f3eba1e35396d7eabf Mon Sep 17 00:00:00 2001
From: Paul Smith <psmith@gnu.org>
Date: Mon, 28 Feb 2005 09:41:25 +0000
Subject: - Fix bug #7144 (infinite loop sometimes with -q and double-colon
 rules) - Resolve support request #103195 (rationalize wordlist fn arguments)

---
 function.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'function.c')

diff --git a/function.c b/function.c
index 66d23fd..c2bd16f 100644
--- a/function.c
+++ b/function.c
@@ -771,6 +771,10 @@ func_wordlist (char *o, char **argv, const char *funcname UNUSED)
 		 _("non-numeric second argument to `wordlist' function"));
 
   start = atoi (argv[0]);
+  if (start < 1)
+    fatal (reading_file, "invalid first argument to `wordlist' function: '%d'",
+           message, start);
+
   count = atoi (argv[1]) - start + 1;
 
   if (count > 0)
-- 
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