Various lisp tools and applications have been packaged for Debian. Some use the common-lisp-controller system. The cclan repository (`maintained' by Christophe Rhodes) contains a lot of unofficial but useful lisp-related packages:
deb http://www-jcsu.jesus.cam.ac.uk/ftp/pub/debian local lisp deb-src http://www-jcsu.jesus.cam.ac.uk/ftp/pub/debian local lisp
New as of 2000-05-24: I think I've implemented the ability to pin packages with apt; so commands like
$ apt-get install ilisp/cCLanwill select the (proto-)cCLan version of ilisp, rather than the Debian one.
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