Affecting kdelibs <= 3.3.2 See upstream kde bug: http://bugs.kde.org/93359 For details and a quick-n-dirty patch to (re) enable proper loading of *.so shared object files. With this, work can potentially begin on purging all/most .la files from the kde packages.
FYI, test case of bug in the wild w/digikam-0.7: http://bugzilla.fedora.us/show_bug.cgi?id=2284
the hack is included now kdelibs-3.3.1-2.11.FC3, which will be released by friday this week. Thanks for your report.