[oe] Building ubuntu/gcc-4_2-branch to get GCJ for arm EABI

[Matthijs van de Water]

Status update: I managed to get everything (also gcc-cross-sdk) to
compile (needed only 1 additional patch and 1GB of extra memory)
I now still need to:
1) Make sure that the relevant GCJ stuff gets packaged (in the current
state it's at least missing the java include files and the
libgcj-4.2.3.jar)
2) Split out all GCJ related stuff to compile in a separate set of
tasks so that it does not always get build, because this takes ages
and loads of memory.

I'm not sure about the best way to get (2)... any suggestions are welcome.

Regards,
Matthijs