+2010-06-11 Jakub Jelinek <jakub@redhat.com>
+
+ * include/cpplib.h (struct cpp_callbacks): Add user_builtin_macro
+ callback.
+ (enum cpp_builtin_type): Add BT_FIRST_USER and BT_LAST_USER.
+ (cpp_macro_definition): Remove const qual from second argument.
+ * macro.c (enter_macro_context): Call user_builtin_macro callback for
+ NODE_BUILTIN !NODE_USED macros.
+ (warn_of_redefinition): Likewise. Remove const qual from second
+ argument.
+ (cpp_macro_definition): Likewise.
+ * pch.c (write_macdef, save_macros): Call user_builtin_macro callback
+ for NODE_BUILTIN !NODE_USED macros.
+
2010-06-10 Joseph Myers <joseph@codesourcery.com>
* include/cpplib.h (struct cpp_options): Remove show_column.