Restore an ancient, 70's-era Algol 68 compiler to working order on today's hardware.

A68H was written in the 70's on IBM hardware. Two versions have been located -- project dumps dated 1974 and 1978. I'm trying to restore it to proper functioning on today's hardware -- PC's running Linux. The recent appearance of a new Algol W compiler provides a real boost to this project; that's the language it was written in. The main development branch is com.pooq.topoi.a68h.trunk. The 1974 and 1978 branches are repositories of mainly historical interest.