-#if defined(__WINDOWS__)
-#include "wx/msw/region.h"
-#elif defined(__MOTIF__)
-#include "wx/xt/region.h"
-#elif defined(__GTK__)
-#include "wx/gtk/region.h"
+#include "wx/colour.h"
+
+#if defined(__WXPALMOS__)
+ #include "wx/palmos/region.h"
+#elif defined(__WXMSW__)
+ #include "wx/msw/region.h"
+#elif defined(__WXGTK__)
+ #include "wx/gtk/region.h"
+#elif defined(__WXMOTIF__) || defined(__WXX11__)
+ #include "wx/x11/region.h"
+#elif defined(__WXMGL__)
+ #include "wx/mgl/region.h"
+#elif defined(__WXMAC__)
+ #include "wx/mac/region.h"
+#elif defined(__WXCOCOA__)
+ #include "wx/cocoa/region.h"
+#elif defined(__WXPM__)
+ #include "wx/os2/region.h"