#if wxUSE_SPINBTN
-class WXDLLEXPORT wxSpinButton;
-class WXDLLEXPORT wxTextCtrl;
+class WXDLLIMPEXP_FWD_CORE wxSpinButton;
+class WXDLLIMPEXP_FWD_CORE wxTextCtrl;
// ----------------------------------------------------------------------------
// wxSpinCtrl is a combination of wxTextCtrl and wxSpinButton