* g++spec.c (lang_specific_driver): Add room for NULL in arglist.

From-SVN: r28812

gcc/cp/ChangeLog

+Mon Aug 23 22:17:20 1999  Mumit Khan  <khan@xraylith.wisc.edu>
+
+	* g++spec.c (lang_specific_driver): Add room for NULL in arglist.
+
 1999-08-23  Jason Merrill  <jason@yorick.cygnus.com>
 
 	* exception.cc (__cplus_type_matcher): Call __throw_type_match_rtti_2.

gcc/cp/g++spec.c

@@ -197,7 +197,8 @@ lang_specific_driver (fn, in_argc, in_argv, in_added_libraries)
       return;
     }
 
-  num_args = argc + added + need_math;
+  /* Make sure to have room for the trailing NULL argument.  */
+  num_args = argc + added + need_math + 1;
   arglist = (char **) xmalloc (num_args * sizeof (char *));
 
   /* NOTE: We start at 1 now, not 0.  */