cl-containers software package provides Common Lisp containers data structures, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install cl-containers
cl-containers is installed in your system.
Make ensure the cl-containers package were installed using the commands given below,
$ sudo dpkg-query -l | grep cl-containers *
You will get with cl-containers package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Lisp |
| Package | cl-containers |
| Version | 20150923-1 |
| Description | Common Lisp containers data structures |
| Sub Section | Lisp |