Both dev-python/python-bibtex-1.2.1 and app-office/pybliographer-1.2.4 compile on gentoo ppc with python 2.3.4 and glib-2.4.7.
*** Bug 70056 has been marked as a duplicate of this bug. ***
dev-python/python-bibtex done in CVS. I don't use gnome, so I did not install pybliographer.
Added pybliographer to ~ppc. It doesn't run on Japanese locale (LANG=C runs fine), though....