anchor.diff:  
   EXTRA_OECMAKE = "${@bb.utils.contains('DISTRO_FEATURES', 'ipv6', '-DDISABLE_IPV6=OFF', '-DDISABLE_IPV6=ON', d)}"
   
  -FILES_${PN}  += "${libdir}/*"
  -
   do_install_append() {
       install -d ${D}${sysconfdir}
       install -d ${D}${sysconfdir}/config
  
positive.code:     install -m 0644 ${WORKDIR}/git/openwrt/package/network/config/firewall/files/firewall.user ${D}${sysconfdir}/firewall.user
  
      ln -s ${sbindir}/firewall3 ${D}${base_sbindir}/fw3
  }
  
negative.code: # Copyright (C) 2016 Khem Raj <raj.khem@gmail.com>
  # Released under the MIT license (see COPYING.MIT for the terms)
  
  SUMMARY = "OpenWrt firewall configuration utility"
  HOMEPAGE = "http://git.openwrt.org/?p=project/firewall3.git;a=summary"
  LICENSE = "BSD"
  LIC_FILES_CHKSUM = "file://main.c;beginline=1;endline=17;md5=2a8ffaa9ef41014f236ab859378e8900"
  SECTION = "base"
  DEPENDS = "libubox uci ubus iptables"
  
  SRCREV = "a4d98aea373e04f3fdc3c492c1688ba52ce490a9"
  SRC_URI = "git://git.openwrt.org/project/firewall3.git \
  