cross-compiler toolchain ebuilds for PowerPC (and other?)

[iTux]

Hi,

I modified/completed the toolchain ebuilds/eclass to have support for cross-compilation. Tested only for ppc cross-compiler on x86.

http://www.sable.mcgill.ca/~dbelan2/crossdev/crossdev-powerpc-i686.html#ebuilds

There are two issues:
1) A different category needs to be used (cross-toolchain in this case). Basically because cross-compilers and native compilers will conflicts in file names in /var/db/pkg/*

This also means that they can be used only to build one cross-compiler toolchain.

2) I modified the toolchain and kernel eclasses. I am not sure if the eclasses in the overlay always override the ones in portage tree or if they are only loaded by ebuilds in the overlay.

Any suggestions/comments on these two would be appreciated.

iTux