Hi all, I'll hopefully get a chance to look into this soon, but from the "racket" list: ---8<--- ...I've just 'converted' a C extension, and a program using it, to Racket. Doing so consisted of s/#lang scheme/#lang racket/, s/mzscheme/racket/, and s/mzc/raco ctool/ . Well. Emmm. That was ... easy. I'm not sure what to say. Well done? --->8--- cheers, dave