reloading a required file

[pshannon@iapetus.cv.nrao.edu (Paul Shannon)]

I have an mcl program in two files: a main file, and  a small one
that defines a function that returns a view containing dialog items.

After I tinker with the dialog items, I save the file, and re-evaluate
all of the main file.  

I had hoped that the function call

     (require 'rules-dialog-box)

would detect that  rules-dialog-box.lisp had changed since last loaded,
but it seems not to.  The only solution I can imagine at this point is
to quit from mcl, and start from scratch.  There must be a better way.

I've looked through Chapter 9 of the mcl reference, and parts of CltL2.

What have I missed?

 - Paul Shannon
   pshannon@nrao.edu
   National Radio Astronomy Observatory
   Charlottesville, Virginia