Re: [RFC/RFT] kbuild: save ARCH & CROSS_COMPILE

[Andi Kleen]

On Tue, Oct 09, 2007 at 12:00:30PM +0200, Sam Ravnborg wrote:
> On Tue, Oct 09, 2007 at 11:39:21AM +0200, Andi Kleen wrote:
> > Sam Ravnborg <sam@xxxxxxxxxxxx> writes:
> > >  
> > > -ARCH		?= $(SUBARCH)
> > > -CROSS_COMPILE	?=
> > 
> > Can you do this in a way that there are still these ARCH/CROSS_COMPILE
> > lines that are just overriden when empty or have their default value? 
> > 
> > This way defaults could be still patched in for special cases.
> 
> If it is OK to drop the $(SUBARCH) assingment like this then yes.
> ARCH		?=
> CROSS_COMPILE	?=

As long as both UML and normal architectures work still out of the 
box yes

> I was wondering why we had the empty CROSS_COMPILE assigment and this
> explains why.
> But why patch something in here in the fisrt place?
> It seems to be a workaround for the actual issue this patch addresses - no?

Mostly.

The difference is that Kbuild.config would likely contain other stuff
too that might be not fit into a patch? Ok it's not a big difference.

-Andi

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