SSLBASE + pkgsrc

[diro%nixsyspaus.org@localhost]

Hi,

I haven't been able to get any answers on this one. Running make show-var
VARNAME=SSLBASE in a package directory that is TLS/SSL capable normally shows
/usr. However, when i want to make sure the base is /usr/pkg, and set
PREFER_PKGSRC=yes in /etc/mk.conf the prior command returns a blank output.
There's been a number of ways that i've set SSLBASE over the years and they've
all changed. What is the correct way to make this work now?

TIA