gnustep-gui-runtime software package provides GNUstep GUI Library - runtime 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 gnustep-gui-runtime
gnustep-gui-runtime is installed in your system.
Make ensure the gnustep-gui-runtime package were installed using the commands given below,
$ sudo dpkg-query -l | grep gnustep-gui-runtime *
You will get with gnustep-gui-runtime package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Libraries |
| Package | gnustep-gui-runtime |
| Version | 0.24.0-3.1 |
| Description | GNUstep GUI Library - runtime files |
| Sub Section | Libs |