$ 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

gsasl-dbg package basic information: