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Date: Mon, 30 Oct 2000 15:40:24 -0800 (PST)
From: Linus Torvalds <torvalds@transmeta.com>
To: Christoph Hellwig <hch@ns.caldera.de>
cc: Jeff Garzik <jgarzik@mandrakesoft.com>, linux-kernel@vger.kernel.org,
        Keith Owens <kaos@ocs.com.au>
Subject: Re: test10-pre7
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On Tue, 31 Oct 2000, Christoph Hellwig wrote:
> 
> It is simple - but a change in _every_ makefile is required.
> And it is not really needed for old-style makefiles.

Actually, you don't have to change every makefile, because you CAN do this
all with a simple backwards-compatibility layer, something like:

	OXONLY = $(filter-out $(O_OBJS), $(OX_OBJS))
	ALL_O = $(OXONLY) $(O_OBJS)

which is a no-op for a "proper" makefile that follows the new rules
(OXONLY will be empty, because all OX_OBJS files will be part of O_OBJS),
but it will make old-style stuff act the same..

I'd actually prefer to just change every Makefile, but hey, I think
something like the above (untested) would make them work unmodified too.

		Linus

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