libfko2-dev software package provides FireWall KNock OPerator - developpement library, 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 libfko2-dev
libfko2-dev is installed in your system.
Make ensure the libfko2-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libfko2-dev *
You will get with libfko2-dev package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Library development |
| Package | libfko2-dev |
| Version | 2.6.0-2.1+b1 [amd64, armel, ar |
| Description | FireWall KNock OPerator - developpement library |
| Sub Section | Libdevel |