libctl5 software package provides library for flexible control files, 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 libctl5
libctl5 is installed in your system.
Make ensure the libctl5 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libctl5 *
You will get with libctl5 package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Libraries |
| Package | libctl5 |
| Version | 3.2.2-2 |
| Description | library for flexible control files |
| Sub Section | libs |