+#include "wx/artprov.h"
+
+// even if the platform has the native implementation, we still normally want
+// to use the generic one (unless it's totally unsuitable for the target UI as
+// is the case of Hildon) because it may provide more features, so include
+// wx/generic/notifmsg.h to get wxGenericNotificationMessage declaration even
+// if wx/notifmsg.h only declares wxNotificationMessage itself (if it already
+// uses the generic version, the second inclusion will do no harm)
+#include "wx/notifmsg.h"
+#include "wx/generic/notifmsg.h"
+