+# SPDX-License-Identifier: GPL-2.0-only
#
-# Copyright (C) 2007-2012 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
+# Copyright (C) 2007-2020 OpenWrt.org
autoconf_bool = $(patsubst %,$(if $($(1)),--enable,--disable)-%,$(2))