+#include "wx/generic/helpext.h"
+#endif
+
+#ifdef __WXMSW__
+#define wxHelpController wxWinHelpController
+#define sm_classwxHelpController sm_classwxWinHelpController
+#else
+#define wxHelpController wxExtHelpController
+#define sm_classwxHelpController sm_classwxExtHelpController