linux-kernel - Re: [PATCH] replace "make ARCH=i386/x86

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Date:	Mon, 5 Nov 2007 10:41:29 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] replace "make ARCH=i386/x86_64 with make ARCH=x86"

On Sun, Nov 04, 2007 at 12:48:26AM +0100, Sam Ravnborg wrote:
> This patchset unify the i386 and x86_64 Kconfig
> files for x86.
> In addition it replaces the use of ARCH=i386 and
> ARCH=x86_64 with the more intuitive ARCH=x86.
> 
> The primary purpose of this patch serie is to 
> enable make ARCH=x86 and let the config decide
> if we are building for 32 or 64 bit.

Nice!  Thanks a lot for the work.

> But we will break quite a high number of
> scripts with this change.
> What is the desired behaviour when specifying:
> make ARCH=i386
> and
> make ARCH=x86_64
> ??
> 
> For now it just error out like this:
> $ make ARCH=i386
> Makefile:503: /home/sam/kernel/x86.git/arch/i386/Makefile: No such file or directory
> make: *** No rule to make target `/home/sam/kernel/x86.git/arch/i386/Makefile'.  Stop.

Sounds fine, other architectures had that exactly same issue before.  Maybe
we can add a more useful message thouigh like

$ARCH does not exist for any non-existant arch.

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