[Xen-devel] Re: [patch] conditionalize building ACPI (was [RFC] build configuration)

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 18 Mar 2006, at 01:32, Hollis Blanchard wrote:

> This patch fixes part of my current need: PPC doesn't want to build 
> ACPI. Two
> basic problems: one was xen/drivers/Makefile; the other was ALL_OBJS in
> xen/Rules.mk.
>
> While I was setting up ALL_OBJS-y for ACPI, I went ahead and converted 
> the
> other users, and did the same for CFLAGS (though I really didn't have 
> to).
> Note that this patch slightly changes the old behavior of "debug" and
> "verbose" in CFLAGS: before, if debug=y, verbose=y was set for you. 
> Now you
> only get what you explicitly enable. Also, perf_array can be used 
> outside of
> perfc. I don't consider either of these changes to be problematic, 
> since
> whoever is building is already changing the config options.

Thanks, looks like the right approach. I'd like to continue down this 
track but leave any 'big bang' changes (like no recursive make in 
subdirectories) until after 3.0.2.

I wonder about getting rid of 'verbose' altogether -- I doubt anyone 
sets it independently of 'debug' and people are now used to just 
setting 'debug=y' on their build to get all the tracing and assertions 
we need to help them track down bugs. If there's no disagreement I'll 
make that change.

 -- Keir


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