Fixes for wxUSE_SPIN... == 0.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@30743 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/spinctrl.h

@@ -18,6 +18,8 @@
 
 #include "wx/spinbutt.h"    // the base class
 
+#if wxUSE_SPINCTRL
+
 #include "wx/dynarray.h"
 
 class WXDLLEXPORT wxSpinCtrl;
@@ -116,6 +118,8 @@ private:
     DECLARE_NO_COPY_CLASS(wxSpinCtrl)
 };
 
+#endif // wxUSE_SPINCTRL
+
 #endif // _WX_MSW_SPINCTRL_H_