OpenSceneGraph (or one of its subpacakges) has multiarch conflicts when installed for both i386 and x86_64 in the Fedora development tree. For help in resolving them, see http://fedoraproject.org/wiki/PackagingDrafts/MultilibTricks. (Note that this is an automated bug filing.) It would be nice to have these bugs fixed by the beta of Fedora 9.
Created attachment 233201 [details] list of conflicts
doxygen-1.5.3-1 seems to have solved all of the issues for fc9.