-#ifdef __WXMAC_CLASSIC__
-#include "wx/osx/classic/private.h"
-#elif defined(__WXOSX_IPHONE__)
-#include "wx/osx/core/private.h"
-#else
-#include "wx/osx/carbon/private.h"
+/* common warning snippet for all osx direct includes */
+
+#ifndef wxOSX_USE_CARBON
+#error "this files should only be included after platform.h was included
+#endif
+
+#if wxOSX_USE_IPHONE
+ #include "wx/osx/iphone/private.h"
+#elif wxOSX_USE_CARBON
+ #include "wx/osx/carbon/private.h"
+#elif wxOSX_USE_COCOA
+ #include "wx/osx/cocoa/private.h"
#endif