If you want to compile it, you need a Common Lisp implementation. SBCL, CLISP, and Clozure CL can usually do it, though SBCL is the most reliable and well-teste

If you want to compile it, you need a Common Lisp implementation. SBCL, CLISP, and Clozure CL can usually do it, though SBCL is the most reliable and well-tested. There are binary versions available for download, too. They've been precompiled with an existing CL compiler.