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

include/wx/generic/treectlg.h

@@ -16,6 +16,8 @@
     #pragma interface "treectlg.h"
 #endif
 
+#if wxUSE_TREECTRL
+
 #include "wx/defs.h"
 #include "wx/string.h"
 #include "wx/object.h"
@@ -450,5 +452,7 @@ public:
 
 #endif
 
+#endif // wxUSE_TREECTRL
+
 #endif // _GENERIC_TREECTRL_H_