System/version specific rc.d scripts?

[Martin Husemann <martin%duskware.de@localhost>]

Sorry if I am missing something obvious (I am bad at pkgsrc compatibility):

in netbsd-8 and newer we need to wait for the "tentative" flag on
network addresses to clear before we can bind a socket to that address.
Some deamons (mostly those dealing with interfaces coming and going)
deal with that via routing messages themselves, but some have a very
limited (and fixed) set of addresses/interfaces configured. NSD is one
of the latter.

This fails for me when starting nsd from pkgsrc on every boot on my primary
DNS. The fix is simple, but it likely is NetBSD (and 8.0 or newer) specific.

How is this most easily handled in the pkg?

Martin

--- nsd	2019-08-04 10:35:49.988425697 +0200
+++ /usr/pkg/share/examples/rc.d/nsd	2018-12-28 11:03:27.000000000 +0100
@@ -18,7 +18,6 @@
 
 nsd_precmd()
 {
-	ifconfig -w 30
 	if [ ! -d /var/run/nsd ]; then
 		/bin/mkdir -p /var/run/nsd
 		/bin/chmod 0750 /var/run/nsd