\ NEEDS.HLP     Conditionally load a file               by Tom Zimmer

HAVIT           ( --- a1 )
        A variable used to pass information out of ?LOADED to tell
        if we have loaded the file in question.

?LOADED         ( | NAME --- F1 )
        Have we already loaded the file specified by NAME? Return
        a boolean F1 true if we have.

NEEDS           ( | NAME --- )
        Test the file NAME following, if we have not loaded it, then
        load it else just go on.

UNWANTED        ( | NAME --- )
        Test the file NAME following, if we have loaded it complain,
        else just go on.

