Cell cross compilation ready for testing

For those of you with PS3’s, I’ve checked in code that allows us to
cross compile from an x86 or x86_64 machine running Fedora 7.

Instructions on how to do it are in the wiki:


Basically it uses NFS to access / on the ps3 and to create
a shared filesystem between the two machines.

Please give it a try and let me know how it works for you.
As always, please fix anything I missed in the instructions.

It builds everything in about 9 minutes :wink: