Added includes needed if not using precompiled headers.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6838 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/os2/menu.cpp

@@ -17,6 +17,7 @@
 #include "wx/wxprec.h"
 
 #ifndef WX_PRECOMP
+    #include "wx/app.h"
     #include "wx/frame.h"
     #include "wx/menu.h"
     #include "wx/utils.h"

src/os2/radiobox.cpp

@@ -15,6 +15,8 @@
 #ifndef WX_PRECOMP
     #include <stdio.h>
     #include "wx/setup.h"
+    #include "wx/wxchar.h"
+    #include "wx/string.h"
     #include "wx/bitmap.h"
     #include "wx/brush.h"
     #include "wx/radiobox.h"