From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1H289n-0005S0-4D
	for qemu-devel@nongnu.org; Wed, 03 Jan 2007 10:35:59 -0500
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1H289l-0005Qf-IW
	for qemu-devel@nongnu.org; Wed, 03 Jan 2007 10:35:58 -0500
Received: from [199.232.76.173] (helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1H289l-0005QU-FG
	for qemu-devel@nongnu.org; Wed, 03 Jan 2007 10:35:57 -0500
Received: from [193.7.176.60] (helo=mail.bawue.net)
	by monty-python.gnu.org with esmtps
	(TLS-1.0:DHE_RSA_AES_256_CBC_SHA:32) (Exim 4.52) id 1H289k-0005cr-Vm
	for qemu-devel@nongnu.org; Wed, 03 Jan 2007 10:35:57 -0500
Received: from lagash (intrt.mips-uk.com [194.74.144.130])
	(using TLSv1 with cipher AES256-SHA (256/256 bits))
	(No client certificate requested)
	by mail.bawue.net (Postfix) with ESMTP id C8B4AB834B
	for <qemu-devel@nongnu.org>; Wed,  3 Jan 2007 16:35:55 +0100 (CET)
Received: from ths by lagash with local (Exim 4.63)
	(envelope-from <ths@networkno.de>) id 1H28Ab-0004dJ-Fj
	for qemu-devel@nongnu.org; Wed, 03 Jan 2007 15:36:49 +0000
Date: Wed, 3 Jan 2007 15:36:49 +0000
Subject: Re: [Qemu-devel] qemu Makefile configure
Message-ID: <20070103153649.GE5849@networkno.de>
References: <E1H1UkH-00031L-K0@savannah.gnu.org>
	<20070103135950.GB5849@networkno.de>
	<20070103144220.GC5849@networkno.de>
	<20070103145500.GA13035@nevyn.them.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20070103145500.GA13035@nevyn.them.org>
From: Thiemo Seufer <ths@networkno.de>
Reply-To: qemu-devel@nongnu.org
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: qemu-devel@nongnu.org

Daniel Jacobowitz wrote:
> On Wed, Jan 03, 2007 at 02:42:20PM +0000, Thiemo Seufer wrote:
> > +CFLAGS += $(OS_CFLAGS)
> 
> Did you try this on any target that triggers one of the += cases?
> 
> It's not the most intuitive thing in the world, but I believe make
> ignores Makefile += operators if the variable was overridden on the
> command line (i.e. the override effectively happens after the +=).

You are right.

> You'd need to leave CFLAGS for the overrideable bits unless you
> wanted to override all the += deliberately.

I think I have to use "override CFLAGS += -ffoo".


Thiemo