cl-bordeaux-threads software package provides Portable shared-state concurrency for Common Lisp, 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-bordeaux-threads
cl-bordeaux-threads is installed in your system.
Make ensure the cl-bordeaux-threads package were installed using the commands given below,
$ sudo dpkg-query -l | grep cl-bordeaux-threads *
You will get with cl-bordeaux-threads package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Lisp |
| Package | cl-bordeaux-threads |
| Version | 0.8.5-1 |
| Description | Portable shared-state concurrency for Common Lisp |
| Sub Section | Lisp |