The xml2 use flag is described "Check/Support flag for XML library (version 2) (deprecated, use xml)"
My systems used to run "+xml +xml2" and I changed that to "+xml -xml2", seeing the description. Oh, and I ran emerge -uvDN world as well, to update all packages that had +xml2.
Until I realised that OpenOffice.org 2.0.2 does not have the ability to save files as odt or sxw anymore.
A warning to those who acted on the "deprecated" bit in the USEflag description.
Aniruddha Shankar -- gentoo-user@gentoo.org mailing list