A number of perl packages were released for F-9 with modules installed into 5.8.8-versioned directories where Fedora 9's perl couldn't find them. Almost all of these were missing a perl(:MODULE_COMPAT...) dependency. This is a tracker for bugs raised for this issue.
All blocker bugs now closed; all perl packages in F-9 and Rawhide should now have been built for perl 5.10.