Catch a more general form of exception, as we don't make use of the more specific. Had issues with Runtime type information on OSX, not sure exactly what the

problem is but this generalization of exception handling seem to make it work safely.

rtgui/cachemanager.cc

@@ -281,7 +281,7 @@ void CacheManager::deleteDir (const Glib::ustring& dirName) {
             safe_g_remove (Glib::build_filename (Glib::build_filename (baseDir, dirName), *i));
         delete dir;
     }
-    catch (const Glib::FileError& fe) {
+    catch (const Glib::Error& e) {
     }
 }