From owner-freebsd-arch@FreeBSD.ORG  Thu Jul  1 09:02:57 2004
Return-Path: <owner-freebsd-arch@FreeBSD.ORG>
Delivered-To: freebsd-arch@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 141A016A4CE
	for <arch@freebsd.org>; Thu,  1 Jul 2004 09:02:57 +0000 (GMT)
Received: from mailout04.sul.t-online.com (mailout04.sul.t-online.com
	[194.25.134.18])
	by mx1.FreeBSD.org (Postfix) with ESMTP id D39DB43D3F
	for <arch@freebsd.org>; Thu,  1 Jul 2004 09:02:56 +0000 (GMT)
	(envelope-from Alexander@Leidinger.net)
Received: from fwd11.aul.t-online.de 
	by mailout04.sul.t-online.com with smtp 
	id 1BfxSu-0004AY-06; Thu, 01 Jul 2004 11:02:44 +0200
Received: from Andro-Beta.Leidinger.net
	(S8GWyMZGoeEdW96FDc8n267ysNPeCJsT05R5D+Y7fz4CpxtacoX8Zt@[84.128.206.29]) by
	fmrl11.sul.t-online.com
	with esmtp id 1BfxSi-10m6Ea0; Thu, 1 Jul 2004 11:02:32 +0200
Received: from Magellan.Leidinger.net (Magellan.Leidinger.net [192.168.1.1])
	i6192V4D017319
	for <arch@freebsd.org>; Thu, 1 Jul 2004 11:02:31 +0200 (CEST)
	(envelope-from Alexander@Leidinger.net)
Date: Thu, 1 Jul 2004 11:02:31 +0200
From: Alexander Leidinger <Alexander@Leidinger.net>
To: arch@freebsd.org
Message-Id: <20040701110231.1d3a4c70@Magellan.Leidinger.net>
X-Mailer: Sylpheed-Claws 0.9.12 (GTK+ 1.2.10; i386-portbld-freebsd5.2)
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
X-Seen: false
X-ID: S8GWyMZGoeEdW96FDc8n267ysNPeCJsT05R5D+Y7fz4CpxtacoX8Zt@t-dialin.net
Subject: RFC: feature tests instead of compiler tests
X-BeenThere: freebsd-arch@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussion related to FreeBSD architecture
	<freebsd-arch.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
	<mailto:freebsd-arch-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arch>
List-Post: <mailto:freebsd-arch@freebsd.org>
List-Help: <mailto:freebsd-arch-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
	<mailto:freebsd-arch-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 01 Jul 2004 09:02:57 -0000

Hi,

the 106k large patch at
http://www.leidinger.net/FreeBSD/current-patches/compiler_independence.diff
introduces feature tests instead of checks for a particular compiler in
the kernel source. The only checks for a particular compiler are in
cdefs.h now.

As per suggestion from bde I also removed parts of the backward
compatibility to old gcc versions because the rest of the kernel can't
be compiled anymore with those old versions.

Interested parties may look at the cdefs.h part first and suggest some
fixes (e.g. better names for the feature defines).

The patch survives a run through the universe. Various revisions of this
patch run fine on my desktop system since some months.

Bye,
Alexander.

-- 
           I'm available to get hired (preferred in .lu).

http://www.Leidinger.net                       Alexander @ Leidinger.net
  GPG fingerprint = C518 BC70 E67F 143F BE91  3365 79E2 9C60 B006 3FE7