Install gcl-doc by entering the following commands in the terminal:
sudo apt update sudo apt install gcl-doc
Description:
Documentation for GNU Common Lisp
GNU Common Lisp (GCL) is a Common Lisp compiler and interpreter implemented in C, and complying mostly with the standard set forth in the book "Common Lisp, the Language I". It attempts to strike a useful middle ground in performance and portability from its design around C. . This package contains Documentation in info format of both the system internals, as well as the graphical interface currently implemented in Tcl/Tk.
Homepage: http://gnu.org/software/gcl
Version: 2.6.12-76
Section: universe/doc