+#ifdef G_OS_WIN32
+gchar *_g_dbus_win32_get_user_sid (void);
+#endif
+
+gchar *_g_dbus_get_machine_id (GError **error);
+
+gchar *_g_dbus_enum_to_string (GType enum_type, gint value);
+
+/* ---------------------------------------------------------------------------------------------------- */
+
+GDBusMethodInvocation *_g_dbus_method_invocation_new (const gchar *sender,
+ const gchar *object_path,
+ const gchar *interface_name,
+ const gchar *method_name,
+ const GDBusMethodInfo *method_info,
+ const GDBusPropertyInfo *property_info,
+ GDBusConnection *connection,
+ GDBusMessage *message,
+ GVariant *parameters,
+ gpointer user_data);
+
+/* ---------------------------------------------------------------------------------------------------- */
+
+gboolean _g_signal_accumulator_false_handled (GSignalInvocationHint *ihint,
+ GValue *return_accu,
+ const GValue *handler_return,
+ gpointer dummy);
+
+gboolean _g_dbus_object_skeleton_has_authorize_method_handlers (GDBusObjectSkeleton *object);
+
+void _g_dbus_object_proxy_add_interface (GDBusObjectProxy *proxy,
+ GDBusProxy *interface_proxy);
+void _g_dbus_object_proxy_remove_interface (GDBusObjectProxy *proxy,
+ const gchar *interface_name);
+
+/* Implemented in gdbusconnection.c */
+GDBusConnection *_g_bus_get_singleton_if_exists (GBusType bus_type);
+