fixed compile errors for wxTreeListCtrl on OSX

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@20635 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/contrib/gizmos/treelistctrl.h

@@ -10,10 +10,10 @@
 /////////////////////////////////////////////////////////////////////////////
 
 
-#ifndef TREELISRCTRL_H
+#ifndef TREELISTCTRL_H
 #define TREELISTCTRL_H
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(__APPLE__)
     #pragma interface "treelistctrl.h"
 #endif
 
@@ -60,6 +60,8 @@ public:
         m_alignment = alignment;
     }
 
+    ~wxTreeListColumnInfo() {}
+
     // getters
     wxTreeListColumnAlign GetAlignment() const { return m_alignment; }
     wxString GetText() const { return m_text; }