anchor.diff:  
   TARGET_CC_ARCH += "${LDFLAGS}"
   
  -PACKAGECONFIG ??= "${@bb.utils.filter('DISTRO_FEATURES', 'ipv6', d)} des smux"
  +PACKAGECONFIG ??= "${@bb.utils.filter('DISTRO_FEATURES', 'ipv6 systemd', d)} des smux"
  +PACKAGECONFIG[des] = "--enable-des, --disable-des"
   PACKAGECONFIG[elfutils] = "--with-elf, --without-elf, elfutils"
  +PACKAGECONFIG[ipv6] = "--enable-ipv6, --disable-ipv6"
   PACKAGECONFIG[libnl] = "--with-nl, --without-nl, libnl"
  -
  -PACKAGECONFIG[ipv6] = "--enable-ipv6,--disable-ipv6,,"
  -
  -PACKAGECONFIG[perl] = "--enable-embedded-perl --with-perl-modules=yes, --disable-embedded-perl --with-perl-modules=no,\
  -                       perl,"
  -PACKAGECONFIG[des] = "--enable-des,--disable-des"
  +PACKAGECONFIG[perl] = "--enable-embedded-perl --with-perl-modules=yes, --disable-embedded-perl --with-perl-modules=no, perl"
   PACKAGECONFIG[smux] = ""
  -
  -EXTRA_OECONF = "--enable-shared \
  -                --disable-manuals \
  -                --with-defaults \
  -                --with-install-prefix=${D} \
  -                --with-persistent-directory=${localstatedir}/lib/net-snmp \
  -                ${@oe.utils.conditional('SITEINFO_ENDIANNESS', 'le', '--with-endianness=little', '--with-endianness=big', d)} \
  -                --with-mib-modules='${MIB_MODULES}' \
  +PACKAGECONFIG[systemd] = "--with-systemd, --without-systemd"
  +
  +EXTRA_OECONF = " \
  +    --enable-shared \
  +    --disable-manuals \
  +    --with-defaults \
  +    --with-install-prefix=${D} \
  +    --with-persistent-directory=${localstatedir}/lib/net-snmp \
  +    --with-endianness=${@oe.utils.conditional('SITEINFO_ENDIANNESS', 'le', 'little', 'big', d)} \
  +    --with-mib-modules='${MIB_MODULES}' \
   "
   
   MIB_MODULES = ""
  
positive.code:     install -d ${D}${systemd_unitdir}/system
      install -m 0644 ${WORKDIR}/snmpd.service ${D}${systemd_unitdir}/system
      install -m 0644 ${WORKDIR}/snmptrapd.service ${D}${systemd_unitdir}/system
      sed    -e "s@^NSC_SRCDIR=.*@NSC_SRCDIR=.@g" \
          -i ${D}${bindir}/net-snmp-create-v3-user
      sed -e 's@^NSC_SRCDIR=.*@NSC_SRCDIR=.@g' \
          -e 's@[^ ]*-ffile-prefix-map=[^ "]*@@g' \
  
negative.code: INITSCRIPT_NAME_${PN}-server-snmpd = "snmpd"
  INITSCRIPT_PARAMS_${PN}-server-snmpd = "start 90 2 3 4 5 . stop 60 0 1 6 ."
  
  SYSTEMD_PACKAGES = "${PN}-server-snmpd \
                      ${PN}-server-snmptrapd"
  
  