linux-kernel - Re: [PATCH] kconfig: Add merge

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Message-ID: <20110922200524.GA1012@merkur.ravnborg.org>
Date:	Thu, 22 Sep 2011 22:05:24 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Richard Cochran <richardcochran@...il.com>
Cc:	John Stultz <john.stultz@...aro.org>,
	lkml <linux-kernel@...r.kernel.org>, gthelen@...gle.com,
	tartler@...fau.de, Dmitry Fink <Dmitry.Fink@...m.com>,
	Darren Hart <dvhart@...ux.intel.com>,
	Eric B Munson <ebmunson@...ibm.com>,
	Bruce Ashfield <Bruce.Ashfield@...driver.com>,
	Michal Marek <mmarek@...e.cz>, linux-kbuild@...r.kernel.org
Subject: Re: [PATCH] kconfig: Add merge_config.sh script

On Wed, Sep 21, 2011 at 08:44:23AM +0200, Richard Cochran wrote:
> On Tue, Sep 20, 2011 at 10:22:41PM -0700, John Stultz wrote:
> > After noticing almost every distro has their own method of managing
> > config fragments, I went looking at some best practices, and wanted
> > to try to consolidate some of the different approaches so this fairly
> > simple infrastructure can be shared (and new distros/build systems
> > don't have to implement yet another config fragment merge script).
> 
> John,
> 
> I have been wanting to make or find a way to start with an allnoconfig
> and enable a short list of config options (and the options that are
> needed to allow them). I don't want the other defaults at all.

>From Documentation/kbuild/kconfig.txt:

===================================================================
This 'KCONFIG_ALLCONFIG' file is a config file which contains
(usually a subset of all) preset config symbols.  These variable
settings are still subject to normal dependency checks.

Examples:
        KCONFIG_ALLCONFIG=custom-notebook.config make allnoconfig
or
        KCONFIG_ALLCONFIG=mini.config make allnoconfig
or
        make KCONFIG_ALLCONFIG=mini.config allnoconfig

These examples will disable most options (allnoconfig) but enable or
disable the options that are explicitly listed in the specified
mini-config files.
===================================================================

I think this should do what you want.

	Sam
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