Ebuilds for this package have an explicit dependency on a version of xerces-c which is less than 3.0.0. All of these ebuilds must be fixed since earlier versions of xerces-c have a security vulnerability, and those versions of xerces-c need to be removed from the tree or hard-masked. dev-libs/dbxml/dbxml-2.4.13.2.ebuild: =dev-libs/xerces-c-2.8* dev-libs/dbxml/dbxml-2.4.16.1.ebuild: =dev-libs/xerces-c-2.8*
Forum entry about it at upstream here: http://forums.oracle.com/forums/thread.jspa?threadID=904180&tstart=0 Until upstream releases a new version with xerces-c-3 support there's nothing we can do.