dnl ###
dnl ### Usage: m4 nsc.m4 domain-source-files >zone-file
dnl ### Or: m4 nsc.m4 domain-source-files >rev-zone-file -DREVERSE=net-ip -DREVBASE=net-ip-to-SOA
dnl ###
dnl ### Usage: m4 nsc.m4 domain-source-files >zone-file
dnl ### Or: m4 nsc.m4 domain-source-files >rev-zone-file -DREVERSE=net-ip -DREVBASE=net-ip-to-SOA