diff --git a/include/wx/osx/carbon/listbox.h b/include/wx/osx/carbon/listbox.h
index be6959f2aa..6fdf0f2ac0 100644
--- a/include/wx/osx/carbon/listbox.h
+++ b/include/wx/osx/carbon/listbox.h
@@ -32,9 +32,9 @@ WX_DEFINE_ARRAY( char* , wxListDataArray );
 // List box control
 // ----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_CORE wxListWidgetColumn;
+class WXDLLIMPEXP_FWD_CORE wxListWidgetColumn;
 
-class WXDLLIMPEXP_CORE wxListWidgetCellValue;
+class WXDLLIMPEXP_FWD_CORE wxListWidgetCellValue;
 
 class WXDLLIMPEXP_CORE wxListBox : public wxListBoxBase
 {
diff --git a/include/wx/osx/core/private.h b/include/wx/osx/core/private.h
index 718cce143f..1313856793 100644
--- a/include/wx/osx/core/private.h
+++ b/include/wx/osx/core/private.h
@@ -88,6 +88,7 @@ class wxNonOwnedWindow;
 class wxMacControl;
 class wxWidgetImpl;
 class wxNotebook;
+class wxTextCtrl;
 
 #if wxOSX_USE_CARBON
 typedef wxMacControl wxWidgetImplType;
@@ -417,8 +418,6 @@ protected :
 // the interface to be implemented eg by a listbox
 //
 
-class WXDLLIMPEXP_CORE wxMacDataItem ;
-
 class WXDLLIMPEXP_CORE wxListWidgetColumn 
 {
 public :