I wrote:

>The ssh-askpass utility which is used to query a passphrase under
>an X11 session is missing in NetBSD 1.5.  Therefore ssh-agent can't
>be used with an X session:

Oops, I failed to see that ssh-askpass is in pkgsrc/security...
Maybe that should be mentioned in the ssh-agent/ssh-add manpage(s)
and/or a small note be printed by the ssh-add utility if it can't
find the program?

mkb