RFC: Primary architecture promotion requirements

[drago01]

On Wed, Mar 21, 2012 at 7:11 PM, Dennis Gilmore <dennis at ausil.us> wrote:
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> On Wed, 21 Mar 2012 06:07:57 -0400 (EDT)
> Jaroslav Reznik <jreznik at redhat.com> wrote:
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>> ----- Original Message -----
>>
>> > Maybe it's worth to ask them (or look at for example Mer builds)
>> > what's
>> > the difference in build times.
>>
>> A few statistics from build.meego.com - using the OBS and building in
>> qemu. These are really just approximate numbers, built in different
>> times with probably a different load...
>>
> I have spoken with the OpenSUSE guys they dont use qemu-system-arm but
> rather qemu-arm and lay out things and build using a hybrid
> environment  thats also how they build ppc s390 and other arches. the
> only build hardware they have is x86. doing full system emulation will
> be slower.

Which is exactly what I proposed ... i.e use cross compilers and
really on qemu to run stuff that gets generated and run during build.

But there seems to be a huge oppositions against that in Fedora.
How does Ubuntu build there ARM builds? Native or using cross compilers?