[Box Backup-dev] Testing on Gentoo/PPC64

[Jonathan Morton]

This is probably one of the more unusual platforms going - even most G5 
owners run Gentoo/PPC32 userspace with a 64-bit kernel - but I suspect the 
problems I encountered are universal.

1) Autoconf failed to locate the Berkeley DB that was installed.

2) Building failed with an incorrect package setup.  I suspect that this 
is because version.txt (or similar) is missing from SVN.

3) Raidfile tests failed.  Everything else passed.