linux-kernel - Re: [PATCH -next 2/2] kbuild: fix for updated LZ4 tool with the new streaming format

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Date:	Tue, 16 Jul 2013 11:05:46 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"Yann E. MORIN" <yann.morin.1998@...e.fr>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>,
	Kyungsik Lee <kyungsik.lee@....com>,
	Michal Marek <mmarek@...e.cz>, linux-kernel@...r.kernel.org,
	linux-kbuild@...r.kernel.org, x86@...nel.org,
	celinux-dev@...ts.celinuxforum.org,
	linux-arm-kernel@...ts.infradead.org, hyojun.im@....com,
	chan.jeong@....com, raphael.andy.lee@...il.com,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Russell King <rmk@....linux.org.uk>,
	Florian Fainelli <florian@...nwrt.org>,
	Yann Collet <yann.collet.73@...il.com>,
	Chanho Min <chanho.min@....com>
Subject: Re: [PATCH -next 2/2] kbuild: fix for updated LZ4 tool with the new
 streaming format

On Tue, Jul 16, 2013 at 01:27:56AM -0700, Andrew Morton wrote:
> What I'm angling at is, rather than a single global front-end script,
> can we embed the scripts in some fashion within the various Kconfig
> files?  Say,
> 
> 	script ./some-script.sh
> 
> and the config system will only evaluate that command if it is working
> on that Kconfig file.  Obviously that requires a multiple-pass thing.

What's wrong with simply grepping the .config we've just created for
*enabled* symbols which require userspace support, check for the
presence of said support and bail out if none?

I.e., those steps:

1. make <whatever>config
2. make => A prereq. target runs the shell script.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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