A few small fixes for cross compilation

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3441 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/menu.h

@@ -19,6 +19,7 @@
 #include "wx/defs.h"
 #include "wx/event.h"
 #include "wx/dynarray.h"
+#include "wx/msw/accel.h"
 
 class WXDLLEXPORT wxMenuItem;
 class WXDLLEXPORT wxMenuBar;