Date: Wed, 10 Jan 2007 00:25:34 +0100
From: Willy Tarreau <w@1wt.eu>
To: Jean Delvare <khali@linux-fr.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
       Kai Germaschewski <kai@germaschewski.name>,
       Sam Ravnborg <sam@ravnborg.org>
Subject: Re: .version keeps being updated
Message-ID: <20070109232534.GV24090@1wt.eu>
References: <20070109102057.c684cc78.khali@linux-fr.org>
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Hi Jean !

On Tue, Jan 09, 2007 at 10:20:57AM +0100, Jean Delvare wrote:
> Hi all,
> 
> Since 2.6.20-rc1 or so, running "make" always builds a new kernel with
> an incremented version number, whether there has actually been any
> change done to the code or configuration or not. This increases the
> build time quite a bit.
> 
> I've tracked it down to include/linux/compile.h always being updated,
> and this is because .version is updated. I couldn't find what is
> causing .version to be updated each time though. Can anybody help
> there? Was this change made on purpose or is this a bug which we should
> fix?

it contains the build number (#X). You have it in the Makefile :
"expr 0$$(cat .old_version) + 1 >.version". I think you can block it
with a "chattr +i .version" and see if make complains.

Regards,
Willy

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