-#ifdef __WXMAC_CLASSIC__
-#include "wx/osx/classic/region.h"
-#else
+#if wxOSX_USE_COCOA_OR_CARBON
#include "wx/osx/carbon/region.h"
+#else
+#define wxRegionGeneric wxRegion
+#define wxRegionIteratorGeneric wxRegionIterator
+
+#include "wx/generic/region.h"
#endif