#elif defined(__WXGTK__)
#include "wx/gtk/toplevel.h"
#define wxTopLevelWindowNative wxTopLevelWindowGTK
+#elif defined(__WXX11__)
+ #include "wx/x11/toplevel.h"
+ #define wxTopLevelWindowNative wxTopLevelWindowX11
#elif defined(__WXMGL__)
#include "wx/mgl/toplevel.h"
#define wxTopLevelWindowNative wxTopLevelWindowMGL