SVN commit 930322 by mpyne:

The reason the change to using KDE prefix did not work for me is one of the returned prefixes was empty.  Who knew?

 M  +1 -1      kdesktopfile.cpp  


--- trunk/KDE/kdelibs/kdecore/config/kdesktopfile.cpp #930321:930322
@@ -159,7 +159,7 @@
 
   // Check if the .desktop file is installed as part of KDE.
   foreach (const QString &prefix, kdePrefixes) {
-    if (path.startsWith(prefix))
+    if (!prefix.isEmpty() && path.startsWith(prefix))
       return true;
   }