Complete documentation for CL-INTERPOL can be found in the 'doc' directory. CL-INTERPOL also supports Nikodemus Siivola's HYPERDOC, see and . 1. Installation 1.1. Probably the easiest way is (load "/path/to/cl-interpol/load.lisp") This should compile and load CL-INTERPOL on most Common Lisp implementations. 1.2. With MK:DEFSYSTEM you can make a symbolic link from 'cl-interpol.system' and 'cl-interpol-test.system' to your central registry (which by default is in '/usr/local/lisp/Registry/') and then issue the command (mk:compile-system "cl-interpol") Note that this relies on TRUENAME returning the original file a symbolic link is pointing to. This will only work with AllegroCL 6.2 if you've applied all patches with (SYS:UPDATE-ALLEGRO). 1.3. You can also use ASDF instead of MK:DEFSYSTEM in a similar way (use the .asd files instead of the .system files). In order to actually use CL-INTERPOL you have to enable its reader syntax with CL-INTERPOL:ENABLE-INTERPOL-SYNTAX - see the docs. 2. Test For a quick test load the file "test.lisp" after installing CL-INTERPOL. (Note: SBCL will emit tons of compiler notes when loading "test.lisp" but it will eventually, after a couple of minutes, pass all tests - at least it does for me with 0.8.4.8.)