Add printf format attribute for error creation helper

diff --git a/gdbus/gdbus.h b/gdbus/gdbus.h
index 47e18cf..c3e7252 100644 (file)
--- a/gdbus/gdbus.h
+++ b/gdbus/gdbus.h
@@ -100,7 +100,8 @@ gboolean g_dbus_unregister_interface(DBusConnection *connection,
                                        const char *path, const char *name);
 
 DBusMessage *g_dbus_create_error(DBusMessage *message, const char *name,
-                                               const char *format, ...);
+                                               const char *format, ...)
+                                       __attribute__((format(printf, 3, 4)));
 DBusMessage *g_dbus_create_error_valist(DBusMessage *message, const char *name,
                                        const char *format, va_list args);
 DBusMessage *g_dbus_create_reply(DBusMessage *message, int type, ...);