+/*
+ * Copyright (C) 1996-2018 The Squid Software Foundation and contributors
+ *
+ * Squid software is distributed under GPLv2+ license and includes
+ * contributions from numerous individuals and organizations.
+ * Please see the COPYING and CONTRIBUTORS files for details.
+ */
+
+#include "squid.h"
+#include "compat.h"
+
+void (*failure_notify) (const char *) = NULL;
+