+#elif defined(__WXX11__)
+#include "wx/x11/pen.h"
+#elif defined(__WXMGL__)
+#include "wx/mgl/pen.h"
+#elif defined(__WXMAC__)
+#include "wx/mac/pen.h"
+#elif defined(__WXCOCOA__)
+#include "wx/cocoa/pen.h"
+#elif defined(__WXPM__)
+#include "wx/os2/pen.h"