libgnatvsn5-dev software package provides GNU Ada compiler selected components (development files), you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libgnatvsn5-dev
libgnatvsn5-dev is installed in your system.
Make ensure the libgnatvsn5-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libgnatvsn5-dev *
You will get with libgnatvsn5-dev package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Library development |
| Package | libgnatvsn5-dev |
| Version | 5.4.0-6ubuntu1~16.04.4 [amd64, |
| Description | GNU Ada compiler selected components (development files) |
| Sub Section | Devel |