Warning cleaning.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28545 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/scrlwing.cpp

@@ -1145,6 +1145,8 @@ void wxScrollHelper::HandleOnMouseLeave(wxMouseEvent& event)
                                     orient
                                 );
         m_timerAutoScroll->Start(50); // FIXME: make configurable
+#else
+        wxUnusedVar(pos);
 #endif
     }
 }