libcunit1-dev software package provides Unit Testing Library for C -- development 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 libcunit1-dev
libcunit1-dev is installed in your system.
Make ensure the libcunit1-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libcunit1-dev *
You will get with libcunit1-dev package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Library development |
| Package | libcunit1-dev |
| Version | 2.1-2.dfsg-2 |
| Description | Unit Testing Library for C -- development files |
| Sub Section | Libdevel |