fix build with wxUSE_MENU==0 (closes #10330)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58000 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/headerctrl.h

@@ -121,6 +121,7 @@ public:
     // UI helpers
     // ----------
 
+#if wxUSE_MENU
     // show the popup menu containing all columns with check marks for the ones
     // which are currently shown and return true if something was done using it
     // (in this case UpdateColumnVisibility() will have been called) or false
@@ -140,6 +141,7 @@ public:
     // the ids of the items corresponding to the columns are consecutive and
     // start from idColumnsBase
     void AddColumnsItems(wxMenu& menu, int idColumnsBase = 0);
+#endif // wxUSE_MENU
 
     // show the columns customization dialog and return true if something was
     // changed using it (in which case UpdateColumnVisibility() and/or
@@ -221,7 +223,9 @@ private:
 
     // event handlers
     void OnSeparatorDClick(wxHeaderCtrlEvent& event);
+#if wxUSE_MENU
     void OnRClick(wxHeaderCtrlEvent& event);
+#endif // wxUSE_MENU
 
     DECLARE_EVENT_TABLE()
 };