Same thing here :
The following packages have unmet dependencies:
prc-tools: Depends: prc-tools-m68k which is a virtual package.
Depends: prc-tools-arm which is a virtual package.-- prc-tools-arm and prc-tools-m68k not available for amd64 https://launchpad.net/bugs/75875 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
