GRASS on Macintosh MacOs 7.1? (not AUX)

Hi. I am aware that Unix is the presumed vehicle for GRASS. Has anyone
adopted GRASS for the Macintosh (*not* AUX, or Unix on Macintosh, but
the native Macintosh operating system, Verison 7.1)? Alternatively,
does anyone have any clue as to the difficulty of this job?

We want to integrate GRASS with Macintosh Lisp for a larger simulation
requiring keeping and updating maps.

        -- Marek