For your consideration: Secondary Architectures in Fedora

[Kevin Kofler]

David Woodhouse <dwmw2 <at> infradead.org> writes:
> The only really reliable solution I see would be full-system emulation.
> Which isn't always much faster than the real hardware, unfortunately.

It's usually much slower. I used that to build x86_64 RPMs for my repository, 
and this takes 8 hours to build a package which builds in 10 minutes on my 
native 32-bit hardware or 5 minutes on real 64-bit hardware. Building OO.o in 
there would take days or even weeks. So unless you're talking about really slow 
machines, which likely don't have the RAM to run Fedora properly anyway, QEMU 
full-system emulation is not a solution.

        Kevin Kofler