added missing virtual for overidden function

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13405 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/list.h b/include/wx/list.h
index 00d6126db2870bc16b7b1fb87cdfc501f19824e5..ef40e6d6f1de48ad9eb9992c94427b6539837416 100644 (file)
--- a/include/wx/list.h
+++ b/include/wx/list.h
@@ -440,7 +440,7 @@ private:
             { wxListBase::Sort((wxSortCompareFunction)func); }              \
                                                                             \
     protected:                                                              \
-        wxNodeBase *CreateNode(wxNodeBase *prev, wxNodeBase *next,          \
+        virtual wxNodeBase *CreateNode(wxNodeBase *prev, wxNodeBase *next,  \
                                void *data,                                  \
                                const wxListKey& key = wxDefaultListKey)     \
             {                                                               \