libc-ares-dev software package provides asynchronous name resolver - 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 libc-ares-dev
libc-ares-dev is installed in your system.
Make ensure the libc-ares-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libc-ares-dev *
You will get with libc-ares-dev package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Library development |
| Package | libc-ares-dev |
| Version | 1.10.0-2+deb8u1 |
| Description | asynchronous name resolver - development files |
| Sub Section | Libdevel |