Re: [Xen-devel] [PATCH] stubdom: disable parallel build

[Olaf Hering <olaf@xxxxxxxxx>]

On Wed, Aug 01, Ian Campbell wrote:

> On Tue, 2012-07-31 at 13:50 +0100, Olaf Hering wrote:
> > On Tue, Jul 31, Ian Campbell wrote:
> > 
> > > I suspect something is not quite right in the top level Makefile WRT the
> > > dependencies between tools and stubdom builds.
> > 
> > Doing a s@$(CROSS_MAKE)@$(MAKE) DESTDIR=@g in stubdom/Makefile fixes it
> > for me:
> 
> Can anyone who understands Make explain why this should make a
> difference?
> 
> I would have expected that
>       FOO := $(BAR) baz
> ...
>       $(FOO) bif
> ought to be identical to
>       $(BAR) baz bif
> 
> Is that not the case?

MAKE is handled special if written in a receipe:
http://www.gnu.org/software/make/manual/html_node/MAKE-Variable.html

That does not really explain why it makes a difference in the case of
stubdom.

Olaf

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