RFC: Primary architecture promotion requirements

[Al Dunsmuir]

On Tuesday, March 20, 2012, 7:21:25 PM, Ralf Corsepius wrote:
> On 03/20/2012 05:46 PM, Richard W.M. Jones wrote:
>> On Tue, Mar 20, 2012 at 05:37:10PM +0100, drago01 wrote:
>>> On Tue, Mar 20, 2012 at 5:34 PM, Brendan Conoboy<blc at redhat.com>  wrote:
>>>> On 03/20/2012 09:21 AM, Ralf Corsepius wrote:
>>>>>
>>>>> That said, I considera cross-building environment for secondary arch to
>>>>> be inevitable, which would at least help for the class of issues, I am
>>>>> referring to above.
>>>>
>>>> I'm a big fan of cross compilation, but introducing it into Fedora in order
>>>> to support ARM seems unlikely to succeed for too many reasons to go into.
>>>
>>> The reasons are? ....
>>
>> We use cross-compilation right now for mingw-* packages (for Windows).
>> However you cannot use cross-compilation to create a foo-*.armv7hl.rpm
>> package.  That's because our entire toolchain, from RPM through Koji,
>> simply does not understand cross-compilation properly.

> Well, the mock/rpm part is the smaller part of the issues (I use 
> customized mock setups on Fedora to build mingw-* and cygwin-* packages).

>> Solvable, but undoubtedly a ton of work for everyone.

> The real issue would be to re-utilize "foreign native rpms" (here 
> *.arm.rpms) to install them in sys-roots on x86.

> (Fedora's mingw*-toolchains are explictly packaged to fit into x86)
> Ralf

On  July  7th,  2009, Mark Salter made a post "crossbuilding rpms with
koji" on the fedora-buildsys-list" where he described a project to add
cross-building support to koji/moc/rpm/etc.

The post in archived post is at
http://www.redhat.com/archives/fedora-buildsys-list/2009-July/msg00000.html