I've installed mac-ports which puts everything under /opt/local. The corresponding man pages are in /opt/local/man. I added the following line to /private/etc/man.conf representing the man search path for port:
MANPATH /opt/local/man/man1
However, when I invoke man on its own:
> man port
I get the following error:
No manual entry for port
Is this the correct way to add a new search path for man?