first pass of wxUniv merge - nothing works, most parts don't even compile

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10673 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/checkbox.cpp

@@ -28,6 +28,8 @@
     #pragma hdrstop
 #endif
 
+#if wxUSE_CHECKBOX
+
 #ifndef WX_PRECOMP
     #include "wx/checkbox.h"
     #include "wx/brush.h"
@@ -269,3 +271,5 @@ void wxBitmapCheckBox::SetLabel(const wxBitmap& WXUNUSED(bitmap))
 {
     wxFAIL_MSG(wxT("not implemented"));
 }
+
+#endif // wxUSE_CHECKBOX