gsasl-dbg software package provides GNU SASL debugging symbols, 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 gsasl-dbg
gsasl-dbg is installed in your system.
Make ensure the gsasl-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep gsasl-dbg *
You will get with gsasl-dbg package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Debug packages |
| Package | gsasl-dbg |
| Version | 1.8.0-8+b1 |
| Description | GNU SASL debugging symbols |
| Sub Section | debug |