cl-cffi software package provides The Common Foreign Function Interface for Common Lisp, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install cl-cffi
cl-cffi is installed in your system.
Make ensure the cl-cffi package were installed using the commands given below,
$ sudo dpkg-query -l | grep cl-cffi *
You will get with cl-cffi package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Development |
| Package | cl-cffi |
| Version | 1:0.16.1-1 |
| Description | The Common Foreign Function Interface for Common Lisp |
| Sub Section | Devel |