minor fixes for mingw32 compilation

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3024 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/cmndata.h

@@ -16,6 +16,7 @@
 #pragma interface "cmndata.h"
 #endif
 
+#include "wx/window.h"
 #include "wx/font.h"
 #include "wx/colour.h"
 #include "wx/gdicmn.h"

include/wx/msw/private.h

@@ -56,7 +56,7 @@ WXDLLEXPORT_DATA(extern HFONT) wxSTATUS_LINE_FONT;
 // window proc
 // ---------------------------------------------------------------------------
 
-#if defined(__GNUWIN32__) && !defined(__MINGW32__)
+#if defined(__GNUWIN32__) 
 #  define CASTWNDPROC (long unsigned)
 #else
 #  ifdef __BORLANDC__