Sure it was today or yesterday that the buildscript was updated to gcc 4.3.3 , witch have support for all the new xmega chips.
Before that the script only made gcc 4.2.2 , witch did not have support for all the new xmega chips
Even thoug the thread is old , it is always updated with the lates linux avr-gcc build.
See the announcement message here , and note the date on the announcement.http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=80442
So i did post about a new version in an old thread.
It would come in handy for the linux based avr developers that are here
Mega32don't code your links