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From: Grant Likely <grant.likely@secretlab.ca>
Date: Fri, 16 Jul 2010 11:57:55 -0600
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Subject: Re: [RFC PATCH] Kconfig: Enable Kconfig fragments to be used for 
	defconfig
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: linuxppc-dev@lists.ozlabs.org, Nicolas Pitre <nico@fluxnic.net>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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        Linus Torvalds <torvalds@linux-foundation.org>,
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        Daniel Walker <dwalker@codeaurora.org>,
        =?ISO-8859-1?Q?Uwe_Kleine=2DK=F6nig?= 
	<u.kleine-koenig@pengutronix.de>,
        Stephen Rothwell <sfr@canb.auug.org.au>
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On Fri, Jul 16, 2010 at 10:03 AM, Catalin Marinas
<catalin.marinas@arm.com> wrote:
> On Wed, 2010-07-14 at 00:04 +0100, Grant Likely wrote:
>> - It still doesn't resolve dependencies. ?A solver would help with this.
>> ? For the time being I work around the problem by running the generated
>> ? config through 'oldconfig' and looking for differences. ?If the files
>> ? differ (ignoring comments and generateconfig_* options) after oldconfig,
>> ? then the <board>_defconfig target returns a failure. ?(but leaves the
>> ? new .config intact so the user can resolve it with menuconfig). ?This
>> ? way at least the user is told when a Kconfig fragment is invalid.
>
> It's not a solver but I'm pushing a patch to warn on selecting symbols
> with unmet dependencies so that you can select further symbols (manual
> solving). The patch is in linux-next but you also can grab it from:
>
> http://git.kernel.org/?p=linux/kernel/git/cmarinas/linux-2.6-cm.git;a=commitdiff_plain;h=5d87db2d2a332784bbf2b1ec3e141486f4d41d6f

sfr and I were talking about your patch the other day.  Just warning
on incomplete dependencies is enough to make it actually workable for
me (without my ugly post-processing step).  I was very happy to hear
that it is in linux-next.

Last missing piece is being able to do "select FOO = n", which Stephen
is currently working on.

g.
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