From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-return-86514-listarch-gcc=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 22297 invoked by alias); 29 Nov 2003 21:53:43 -0000
Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Archive: <http://gcc.gnu.org/ml/gcc/>
List-Post: <mailto:gcc@gcc.gnu.org>
List-Help: <http://gcc.gnu.org/ml/>
Sender: gcc-owner@gcc.gnu.org
Received: (qmail 22284 invoked from network); 29 Nov 2003 21:53:41 -0000
Received: from unknown (HELO monkey.akihabara.co.uk) (213.152.55.49)
  by sources.redhat.com with SMTP; 29 Nov 2003 21:53:41 -0000
Received: from neil by monkey.akihabara.co.uk with local (Exim 4.22)
	id 1AQCzC-0005NN-9D; Sat, 29 Nov 2003 21:50:42 +0000
Date: Sat, 29 Nov 2003 23:11:00 -0000
From: Neil Booth <neil@daikokuya.co.uk>
To: Marc Espie <espie@nerim.net>
Cc: Andreas Schwab <schwab@suse.de>, gcc@gcc.gnu.org,
	gcc-patches@gcc.gnu.org
Subject: Re: PATCH: work-around for bug in -traditional-cpp
Message-ID: <20031129215042.GA18674@daikokuya.co.uk>
References: <20031125125336.GA3717@tetto.gentiane.org> <jeu14sh92h.fsf@sykes.suse.de> <20031129154742.GA17134@tetto.gentiane.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20031129154742.GA17134@tetto.gentiane.org>
User-Agent: Mutt/1.5.4i
X-SW-Source: 2003-11/txt/msg01528.txt.bz2

Marc Espie wrote:-

> On Tue, Nov 25, 2003 at 02:27:50PM +0100, Andreas Schwab wrote:
> > An even simpler test case:
> > 
> > #define a(b,c)
> > #if 0
> > #define b(x,y) a(x)
> > #endif
> > 
> > cpp.c:3: macro "a" requires 2 arguments, but only 1 given
> > 
> > Interestingly, changing #if 0 to #if 1 removes the error.
> 
> Okay, it looks like trad-cpp is messing with skipping.

If you're skipping you shouldn't even be attempting to expand
macros.

Neil.