cl-trivial-backtrace software package provides generate a Common Lisp backtrace portably, 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-trivial-backtrace
cl-trivial-backtrace is installed in your system.
Make ensure the cl-trivial-backtrace package were installed using the commands given below,
$ sudo dpkg-query -l | grep cl-trivial-backtrace *
You will get with cl-trivial-backtrace package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Lisp |
| Package | cl-trivial-backtrace |
| Version | 20160531-1 |
| Description | generate a Common Lisp backtrace portably |
| Sub Section | Lisp |