Angstrom building for SPARC

By poaching files and diffs from snapgear, Angstrom is merrily building away.

Slowly debugging issues and learning more than I ever wanted to know about the linux boot process.
Issues:

• Does it work? Angstrom at the moment is building with gcc4 not 3.
• Are there necessary glibc patches? If so I haven't done anything to apply any.
• I need to fix the ramdisk builds.
• Will udev work?

Anyway, off home now!