mmh...
openoffice comes in two flavours, one source, one binary. The binary is offered because its a notoriously long compile (good few hours, depending on hardware)
The bets way to put language support into programs (including openoffice) is to add the country / language code in the make.conf, by default it comes with a line like
- Code: Select all
LINGUAS="en"
if you changed that to LINGUAS="en el" (I think that is the greek language code) it will be added for every future build (I think KDE and open office are the only two that use it, i may be wrong)
Now you can just emerge -av openoffice-bin or emerge -av openoffice
youll be able to see if the greek language support is in from there (Note the above warning on the source OO.o, might want to use the binary and remove the other one after

)
any probs, gimme a shout back
EDIT: You say you use all of sabayon in greek, which id assume you set it on the installation, if it isnt changing the language varibile, might be best to file a bug so it doesnt cause a language inconsistancy with future builds