I second the shim idea. Yes, the glue is a solid fix, but anything permanant can come back to bite you. There really shouldn't be any squeaking with the shims in place. If there is add more shims to tighten up the joint.
Nick
Current Boat Looking for one
Previous Boats '84 H16 '82 H18 Magnum '74 Pearson 30 St. Louis, MO