linux-kernel - Re: 3.9-rc1: hz.bc compilation breakage

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Message-ID: <51380C65.50202@zytor.com>
Date:	Wed, 06 Mar 2013 19:41:25 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>
CC:	linux-kernel@...r.kernel.org,
	linux-kbuild <linux-kbuild@...r.kernel.org>
Subject: Re: 3.9-rc1: hz.bc compilation breakage

On 03/06/2013 06:36 AM, Maxime Ripard wrote:
> Hi,
> 
> I'm compiling the kernel for an iMX28(ARM) board, and since 3.9-rc1, I
> get the following error at compilation time:
> 
> make[3]: *** No rule to make target
> `/home/max/Work/2012/crystalfontz/rewrite/linux-dt/include/config/hz.h',
> needed by `kernel/hz.bc'.  Stop.
> 
> I'm doing a clean out-of-tree build, with the following configuration
> file: http://code.bulix.org/m4y7se-83102?raw
> 
> Reverting commit 1b66e0fd ("kernel: Replace timeconst.pl with a bc
> script") make the compilation go on as usual.
> 

That file should have been created by "make *config", and I just
verified that it does indeed do so.  That file is a sentinel for
configuration changes; the entire build system depends on it.

I am not sure what you mean with "clean out-of-tree", however.

kbuild people: is there anything wrong with how this dependency is
specified?

	-hpa


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