From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-return-14204-listarch-gdb=sources.redhat.com@sources.redhat.com>
Received: (qmail 2570 invoked by alias); 10 Jun 2003 12:45:53 -0000
Mailing-List: contact gdb-help@sources.redhat.com; run by ezmlm
Precedence: bulk
List-Subscribe: <mailto:gdb-subscribe@sources.redhat.com>
List-Archive: <http://sources.redhat.com/ml/gdb/>
List-Post: <mailto:gdb@sources.redhat.com>
List-Help: <mailto:gdb-help@sources.redhat.com>, <http://sources.redhat.com/ml/#faqs>
Sender: gdb-owner@sources.redhat.com
Received: (qmail 2238 invoked from network); 10 Jun 2003 12:45:48 -0000
Received: from unknown (HELO delta.ds2.pg.gda.pl) (213.192.72.1)
  by sources.redhat.com with SMTP; 10 Jun 2003 12:45:48 -0000
Received: from localhost by delta.ds2.pg.gda.pl (8.9.3/8.9.3) with SMTP id OAA21021;
	Tue, 10 Jun 2003 14:38:01 +0200 (MET DST)
X-Authentication-Warning: delta.ds2.pg.gda.pl: macro owned process doing -bs
Date: Tue, 10 Jun 2003 12:45:00 -0000
From: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
To: Andreas Schwab <schwab@suse.de>
cc: Alexandre Oliva <aoliva@redhat.com>,
        Nathanael Nerode <neroden@twcny.rr.com>, gcc@gcc.gnu.org,
        gdb@sources.redhat.com, binutils@sources.redhat.com
Subject: Re: Partial autoconf transition thoughts
In-Reply-To: <jehe6y40yy.fsf@sykes.suse.de>
Message-ID: <Pine.GSO.3.96.1030610141038.19547I-100000@delta.ds2.pg.gda.pl>
Organization: Technical University of Gdansk
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-SW-Source: 2003-06/txt/msg00157.txt.bz2

On Tue, 10 Jun 2003, Andreas Schwab wrote:

> |>  Well, if I specify --host, I mean I want to use a different alias than
> |> the one that is expanded by config.sub.
> 
> I think you are supposed to use --build instead.

 But then host (correctly) defaults to build but host_alias (incorrectly) 
defaults to host.  I mean the current dependency between variables in
autoconf is as follows ("(sub)" meaning passing through config.sub): 

                guess
                   |
override -(sub)-+  |
|               |  |
v               v  v
build_alias <-- build
                   |
override -(sub)-+  |
|               |  |
v               v  v
host_alias <--- host
                   |
override -(sub)-+  |
|               |  |
v               v  v
target_alias <- target

And I would like to see it as follows:

            guess
            |
            v
override -> build_alias --(sub)-> build
            |
            v
override -> host_alias ---(sub)-> host
            |
            v
override -> target_alias -(sub)-> target

I think it makes sense and the dependencies seem even simpler. 

  Maciej

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +