#if wxUSE_DATEPICKCTRL
+// this is currently defined in wx/msw/setup.h but not for MSW configure builds
+// and other ports which only have the generic version anyhow, so provide a
+// fallback definition here for them
+#ifndef wxUSE_DATEPICKCTRL_GENERIC
+ #define wxUSE_DATEPICKCTRL_GENERIC 0
+#endif
+
#include "wx/control.h" // the base class
#include "wx/datetime.h"