--- src/usr.bin/make/str.c	2005/01/27 02:30:19	1.22
+++ src/usr.bin/make/str.c	2005/02/04 22:35:42	1.23
@@ -225,7 +225,8 @@ brk_string(char *str, int *store_argc, B
 		*t++ = (char)ch;
 	}
 done:	argv[argc] = NULL;
-	*store_argc = argc;
+	if ((store_argc != NULL)
+		*store_argc = argc;
 	return (argv);
 }