+2009-11-20 Arnaud Charlet <charlet@adacore.com>
+
+ * macro.c (enter_macro_context): Call cb.used callback if defined.
+ * directives.c (do_idef, do_ifndef): Ditto.
+ * include/cpplib.h (struct cpp_callbacks): Add used callback.
+
2009-11-11 Kai Tietz <kai.tietz@onevision.com>
* directives.c (do_pragma_push_macro): New pragma handler.