%if 0%{?rhel} >= 7
%systemd_preun zerotier-one.service
%endif
%if 0%{?fedora} >= 21
%systemd_preun zerotier-one.service
%endif
%if 0%{?rhel} <= 6
case "$1" in
  0)
    service zerotier-one stop
    chkconfig --del zerotier-one
  ;;
  1)
    # This is an upgrade.
    :
  ;;
esac
%endif