Something to "tail -f" during a long build?

[Lloyd Zusman]

Once I've started a long build (for example, of something like gcc42), is
there a file somewhere that I can look at with "tail -f" in order to watch
the progress of the build?

I know that I can start a build with the "-v" or maybe "-d" flag to see
more info, but I'm specfically wondering if there's a log file somewhere
for the non-"-v" case (for example, for a simple "port install gcc42")
that I can look at while the build is running.

Thanks in advance.

-- 
 Lloyd Zusman
 hippoman at potamuses.net
 God bless you.