libgadu3-dbg software package provides Gadu-Gadu protocol library - debug symbols, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libgadu3-dbg
libgadu3-dbg is installed in your system.
Make ensure the libgadu3-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep libgadu3-dbg *
You will get with libgadu3-dbg package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Debug packages |
| Package | libgadu3-dbg |
| Version | 1:1.12.0-5 |
| Description | Gadu-Gadu protocol library - debug symbols |
| Sub Section | Debug |