True for the original Prolog-alpha by Jack Shirazi,
but Lee Goddard's Language-Prolog-Interpreter
has a Makefile.PL and is (maybe) maintained. merlyns
link points two both distributions.
Hanamaki - actually, Lee only did a little work on it a few years ago, and is waiting for someone to feel the same way. In other words, if anyone fancies working on it, please ask and I'll transfer ownership. I think the original author is credited in the POD.
Nemeste
Lee Goddard