+/* Callback function when walking a macro table. NAME is the name of
+ the macro, and DEFINITION is the definition. SOURCE is the file at the
+ start of the include path, and LINE is the line number of the SOURCE file
+ where the macro was defined. USER_DATA is an arbitrary pointer which is
+ passed by the caller to macro_for_each or macro_for_each_in_scope. */
+typedef void (*macro_callback_fn) (const char *name,
+ const struct macro_definition *definition,
+ struct macro_source_file *source,
+ int line,
+ void *user_data);
+
+/* Call the function FN for each macro in the macro table TABLE.
+ USER_DATA is passed, untranslated, to FN. */
+void macro_for_each (struct macro_table *table, macro_callback_fn fn,
+ void *user_data);
+
+/* Call the function FN for each macro that is visible in a given
+ scope. The scope is represented by FILE and LINE. USER_DATA is
+ passed, untranslated, to FN. */
+void macro_for_each_in_scope (struct macro_source_file *file, int line,
+ macro_callback_fn fn,
+ void *user_data);
+
+/* Return FILE->filename with possibly prepended compilation directory name.
+ This is raw concatenation without the "set substitute-path" and gdb_realpath
+ applications done by symtab_to_fullname. Returned string must be freed by
+ xfree.
+
+ THis function ignores the "set filename-display" setting. Its default
+ setting is "relative" which is backward compatible but the former behavior
+ of macro filenames printing was "absolute". */
+extern char *macro_source_fullname (struct macro_source_file *file);