[src/trunk]: src/usr.bin/make Avoid coredump for

[sjg <sjg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/129064c3a2a4
branches:  trunk
changeset: 349398:129064c3a2a4
user:      sjg <sjg%NetBSD.org@localhost>
date:      Fri Dec 09 22:56:21 2016 +0000

description:
Avoid coredump for

(FOO) = fu

reported by Ori Bernstein

diffstat:

 usr.bin/make/parse.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (35 lines):

diff -r f7a9763c4059 -r 129064c3a2a4 usr.bin/make/parse.c
--- a/usr.bin/make/parse.c      Fri Dec 09 22:50:10 2016 +0000
+++ b/usr.bin/make/parse.c      Fri Dec 09 22:56:21 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: parse.c,v 1.216 2016/12/07 15:00:46 christos Exp $     */
+/*     $NetBSD: parse.c,v 1.217 2016/12/09 22:56:21 sjg Exp $  */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -69,14 +69,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: parse.c,v 1.216 2016/12/07 15:00:46 christos Exp $";
+static char rcsid[] = "$NetBSD: parse.c,v 1.217 2016/12/09 22:56:21 sjg Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)parse.c    8.3 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: parse.c,v 1.216 2016/12/07 15:00:46 christos Exp $");
+__RCSID("$NetBSD: parse.c,v 1.217 2016/12/09 22:56:21 sjg Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -1851,7 +1851,7 @@
      * XXX Rather than counting () and {} we should look for $ and
      * then expand the variable.
      */
-    for (depth = 0, cp = line + 1; depth != 0 || *cp != '='; cp++) {
+    for (depth = 0, cp = line + 1; depth > 0 || *cp != '='; cp++) {
        if (*cp == '(' || *cp == '{') {
            depth++;
            continue;