Date: Sun, 11 Sep 2005 10:31:53 +0200
From: Sam Ravnborg <sam@ravnborg.org>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
       LKML <linux-kernel@vger.kernel.org>
Subject: Re: asm-offsets.h is generated in the source tree
Message-ID: <20050911083153.GA24176@mars.ravnborg.org>
References: <20050911012033.5632152f.sfr@canb.auug.org.au> <20050910161917.GA22113@mars.ravnborg.org> <20050911023203.GH25261@ZenIV.linux.org.uk>
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> 
> BTW, early build stages on uml with O= are still broken, even with that
> patch.  The following fixes them, but first chunk is a bad kludge.
> 
> What happens:
> 	a) silentconfig expects to have include/linux in build tree already
> created.  Normally that happens earlier, but only by accident.  We need to
> force that somehow and the way I'd done it is almost certainly wrong - it
> should be in top-level makefile, to start with.  Suggestions?

We could stick a `mkdir -p include/linux` command just before executing
$(Q)$(MAKE) $(build)=scripts/kconfig silentoldconfig

It should do the trick - no?

> 	b) kernel-offsets.h needs symlinks already in place.  prepare1 does
> everything we need, so that dependency is probably the right thing (the second
> chunk).

I will try to take a closer look at this tonight.
As always my head starts spinning when I look at the arch/um/Makefile
but I will see what I can do.
If I can simplify it and introduce full dependency checks it would be
really nice. 
It may add a Kbuild file to arch/um with the rules
for generating the header files.

	Sam
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