RFC: Primary architecture promotion requirements

Ralf Corsepius rc040203 at freenet.de
Tue Mar 20 23:21:25 UTC 2012

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)


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