[some years pass...] So, thanks to some gentle prodding and patches from Daniel Herring, I've finally gotten around to making clem and ch-image run on lisps besides SBCL. In particular, they both work on ccl and clisp, with ecl support hopefully not too far behind.

A combination of bogus things on my part, the occasional bug in the lisp implementation itself, and idiosyncrasies of the spec meant that various things didn't work right. The most-common offender was that I was assuming that things like double-float and fixnum defined classes, and that one could use these as method specializers. Apparently, the lisp spec says otherwise.

Also, there were a few bugs in ccl, especially in the 32-bit x86 version, that the ccl team fixed straightaway that allow trunk builds of ccl to load and run clem and ch-image. Thanks to R. Matthew Emerson for the prompt fixes and to Gary Byers for the helpful discussion about whether or not (setf (find-class 'foo) (find-class 'bar)) should create a new type for foo.

In any event, clem can be found at http://git.cyrusharmon.org/cgi-bin/gitweb.cgi?p=clem.git and ch-image at http://git.cyrusharmon.org/cgi-bin/gitweb.cgi?p=ch-image.git.

I should point out that these changes haven't found there way into official releases, per se, so if you want to use this stuff on ccl, clisp, ecl, etc... make sure you get the latest source from the git repo.