[PATCH] Don't build Intel DRM if $CHOST is not i?86-* or x86_64-*

[Jeremy Huddleston]

On Jan 31, 2012, at 8:59 AM, Eric Anholt wrote:

> On Mon, 30 Jan 2012 15:25:20 -0800, Jeremy Huddleston <jeremyhu at freedesktop.org> wrote:
>> This fixes a failure in 'make check' found by the tinderbox when trying to
>> build this code on Linux/ppc.  This code is only designed to run on
>> Intel platforms, so don't even bother building it if we're not in that set.
> 
> Looks reasonable to me, except it should probably be checking $target_os
> (cross-compile target) rather than $host_os (cross compile build host).

I think you are misunderstanding the variables (or perhaps you are following Mozilla's usage of the variables, which is wrong but internally consistent).

CBUILD - The platform of the machine being built on.
CHOST  - The platform that the delivered product will run on.
CTARGET- The platform that the delivered product will generate code for.

CTARGET is only really relevant for toolchain packages.

eg.  I want to build a gcc that builds mips code and runs on my intel box:
CTARGET=mips-*
CHOST=i686-*

If I want to do the building of that compiler on my ppc box:
CBUILD=powerpc-*
CTARGET=mips-*
CHOST=i686-*

--Jeremy