+
+#include "wx/validate.h" // always include, even if !wxUSE_VALIDATORS
+
+#if wxUSE_VALIDATORS
+ #include "wx/valtext.h"
+#endif // wxUSE_VALIDATORS
+
+#if wxUSE_SERIAL
+ #include "wx/objstrm.h"
+ #include "wx/serbase.h"
+#endif // wxUSE_SERIAL
+
+#endif // wxUSE_GUI