gnustep software package provides User applications for the GNUstep Envireonment, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gnustep
gnustep is installed in your system.
Make ensure the gnustep package were installed using the commands given below,
$ sudo dpkg-query -l | grep gnustep *
You will get with gnustep package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | X Window System software |
| Package | gnustep |
| Version | 7.7 |
| Description | User applications for the GNUstep Envireonment |
| Sub Section | x11 |