## Delegate NAME to the NAMESERVERS.
m4_define([SUBZONE], [m4_dnl
FOREACH([m4_dnl
+m4_ifelse($][2,,,m4_dnl
m4_ifelse($1,@,$][1,$][1.$1) IN A $][2
+)m4_dnl
+m4_ifelse($][3,,,m4_dnl
+m4_ifelse($1,@,$][1,$][1.$1) IN AAAA $][3
+)m4_dnl
], [NAMESERVERS])
FOREACH([m4_dnl
$1 IN NS m4_ifelse($1,@,$][1,$][1.$1)