2.1.1 Common Lisp implementation

FEMLISP is tested regularly on SBCL, so it can be expected to work best with this implementation.

Former FEMLISP versions have been tested with many other ANSI Common Lisp implementations, i.e. Allegro CL, CMUCL, Clozure CL, ECL, Lispworks, SBCL, Scieneer CL, and even CLISP (however, since CLISP does not compile to native code, too slowly for most practical uses), and it should be quite straightforward to port it to other ANSI Common Lisp implementations as well (e.g. ABCL or GCL).