From 57d9d1d762b2fa2dac5dd11a1e88890e2ec0e7c7 Mon Sep 17 00:00:00 2001
From: Ruslan Ermilov <ru@FreeBSD.org>
Date: Mon, 12 Apr 2004 20:05:11 +0000
Subject: [PATCH] The .DEFAULT target with no commands caused a null pointer
 dereference.

PR:		bin/63405
Obtained from:	NetBSD
---
 usr.bin/make/suff.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/usr.bin/make/suff.c b/usr.bin/make/suff.c
index b1f68c8ec5a1..bd02152b5bfb 100644
--- a/usr.bin/make/suff.c
+++ b/usr.bin/make/suff.c
@@ -635,7 +635,12 @@ Suff_EndTransform(void *gnp, void *dummy __unused)
     {
 	Suff	*s, *t;
 
-	(void)SuffParseTransform(gn->name, &s, &t);
+	/*
+	 * SuffParseTransform() may fail for special rules which are not
+	 * actual transformation rules (e.g., .DEFAULT).
+	 */
+	if (!SuffParseTransform(gn->name, &s, &t))
+	    return (0);
 
 	DEBUGF(SUFF, ("deleting transformation from `%s' to `%s'\n",
 	       s->name, t->name));