linux-kernel - Re: [GIT PULL] UML changes for 3.2

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Date:	Thu, 03 Nov 2011 23:18:54 +0100
From:	Richard Weinberger <richard@....at>
To:	Paul Bolle <pebolle@...cali.nl>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Peter Foley <pefoley2@...izon.net>,
	Michal Marek <mmarek@...e.cz>
Subject: Re: [GIT PULL] UML changes for 3.2

Am 03.11.2011 23:10, schrieb Paul Bolle:
> On Thu, 2011-11-03 at 22:56 +0100, Paul Bolle wrote:
>> These Makefiles always make me nervous. Is SUBARCH set by the time the
>> update-po-config target is run? If so, we could simply do "env SUBARCH=
>> $(SUBARCH) [...]". But how do I check that SUBARCH really is set (ie,
>> that I'm not passing env an empty string)?
> 
> It seems the trick here should be
>     env SUBARCH=$(KBUILD_BUILDHOST) [...]
> 
> Michal, does that make sense?
> 

Beware, it's also possible to set it by hand.
E.g. for building a i386 UML on x86_64.
make linux ARCH=um SUBARCH=i386.

As long no inclusion of another Kconfig file depends on SUBARCH, setting
it to the empty string is ok.

Thanks,
//richard


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