>  What is the result of
>  bmake show-var VARNAME=KRB5_TYPE
>  ?

This returns "heimdal" - but the gnome-vfs2 build still failed once
I'd installed heimdal manually (strange that gnome-vfs2 didn't seem to
pull this package in automatically...)

Additionally, heimdal seems to install a broken version of "su" :(
Actually - no: I've just looked at the PLIST, and the heimdal
utilities should be prefixed with KRB5_PREFIX, which isn't set for my
system.  I'll rebuild it with this (or, at least,
kerberos-prefix-cmds, set.