libice6-dbg software package provides X11 Inter-Client Exchange library (debug package), 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 libice6-dbg
libice6-dbg is installed in your system.
Make ensure the libice6-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep libice6-dbg *
You will get with libice6-dbg package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Debug packages |
| Package | libice6-dbg |
| Version | 2:1.0.9-1+b1 |
| Description | X11 Inter-Client Exchange library (debug package) |
| Sub Section | Debug |