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Message-ID: <38b2ab8a0801310057y1e003c27tae24d6ffd2aadf0b@mail.gmail.com>
Date: Thu, 31 Jan 2008 09:57:48 +0100
From: "Francis Moreau" <francis.moro@gmail.com>
To: "Paul Mundt" <lethal@linux-sh.org>,
       "Francis Moreau" <francis.moro@gmail.com>, linux-kernel@vger.kernel.org
Subject: Re: [Kbuild] How to clean a particular directory ?
In-Reply-To: <20080131085408.GA14470@linux-sh.org>
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References: <38b2ab8a0801310038o2906ab68ta8893240576d806d@mail.gmail.com>
	 <20080131084851.GB14160@linux-sh.org>
	 <20080131085408.GA14470@linux-sh.org>
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On Jan 31, 2008 9:54 AM, Paul Mundt <lethal@linux-sh.org> wrote:
> Makefile says:
>
> # Use make M=dir to specify directory of external module to build
> # Old syntax make ... SUBDIRS=$PWD is still supported
> # Setting the environment variable KBUILD_EXTMOD take precedence
> ifdef SUBDIRS
>   KBUILD_EXTMOD ?= $(SUBDIRS)
> endif
> ifdef M
>   ifeq ("$(origin M)", "command line")
>     KBUILD_EXTMOD := $(M)
>   endif
> endif
>
> so M= is apparently the newfangled (and undocumented) way of doing this.
>

Good catch.

I tried "make help" to search for revelant info but didn't find anything useful.

Thanks
-- 
Francis
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