psql & pg_dump

Greetings,

Is there a way to build just the binaries?  My users connect from
another machine.  The libraries are not in the same place on the
machine.  I don't want to add the load library path to their profiles
because there are two instances of postgres they need to get to and
the libraries are different for each.  The students are required to
back up their own databases so I just need psql and pg_dump.

Thanks,
Carol