clucene (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.
file /usr/include/CLucene/clucene-config.h from install of clucene-core-devel-0.9.16a-1.fc7 conflicts with file from package clucene-core-devel-0.9.16a-1.fc7
(Note that this is an automated bug filing.)
It would be nice to have these bugs fixed by the beta of Fedora 9.