linux-kernel - Re: 32bit builds on x86-64 host.

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Message-ID: <20071031085739.GA5468@infradead.org>
Date:	Wed, 31 Oct 2007 08:57:39 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Christoph Hellwig <hch@...radead.org>,
	"H. Peter Anvin" <hpa@...or.com>, Dave Jones <davej@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Sam Ravnborg <sam@...nborg.org>
Subject: Re: 32bit builds on x86-64 host.

On Tue, Oct 30, 2007 at 06:00:01PM -0700, Jeremy Fitzhardinge wrote:
> Christoph Hellwig wrote:
> > Which seems rather unnatural to me.  All other merge architectures have
> > ARCH=<archdir> where archdir is the name under arch, e.g. mips, powerpc,
> > s390.  They then have a CONFIG_FOO_64 and set the utsname and -m32/-m64
> > respectively.  It would be nice if x86 could behave like all other
> > architectures in this respect.  Especially as the behaviour of the other
> > architectures is a lot more intuitive.
> >   
> 
> Yes, that would be nice.  I keep forgetting the ARCH= in my crossbuild
> trees, and end up with strange mismashes.

That's a problem with all architectures currently.  But I think Sam has
a patch that at least stores ARCH when using objdir != srcdir builds.

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