fix compile (-fpermissive)

kaevent.cpp

@@ -4028,7 +4028,7 @@ void KAEventPrivate::endChanges()
 /******************************************************************************
 * Return a list of pointers to KAEvent objects.
 */
-KAEvent::List KAEvent::ptrList(const QVector<KAEvent>& objList)
+KAEvent::List KAEvent::ptrList(QVector<KAEvent>& objList)
 {
     KAEvent::List ptrs;
     for (int i = 0, count = objList.count();  i < count;  ++i)

kaevent.h

@@ -1354,7 +1354,7 @@ class KALARMCAL_EXPORT KAEvent
 
 #ifndef KALARMCAL_USE_KRESOURCES
         /** Return a list of pointers to a list of KAEvent objects. */
-        static List ptrList(const QVector<KAEvent>& events);
+        static List ptrList(QVector<KAEvent>& events);
 #endif
 
         /** Output the event's data as debug output. */