* such as ANONYMOUS that supports anonymous auth must be included in
* the list of available mechanisms for anonymous login to work.
*
+ * Note that the mechanism might reject the connection even if anonymous
+ * authentication has been enabled if dbus_connection_set_unix_user_function()
+ * or dbus_connection_set_windows_user_function() have been used to set a
+ * specific authorization callback.
+ *
* This setting also changes the default rule for connections
* authorized as a user; normally, if a connection authorizes as
* a user identity, it is permitted if the user identity is