gobjc-4.8-aarch64-linux-gnu software package provides GNU Objective-C compiler, 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 gobjc-4.8-aarch64-linux-gnu
gobjc-4.8-aarch64-linux-gnu is installed in your system.
Make ensure the gobjc-4.8-aarch64-linux-gnu package were installed using the commands given below,
$ sudo dpkg-query -l | grep gobjc-4.8-aarch64-linux-gnu *
You will get with gobjc-4.8-aarch64-linux-gnu package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Development |
| Package | gobjc-4.8-aarch64-linux-gnu |
| Version | 4.8.2-13ubuntu1cross0.11 |
| Description | GNU Objective-C compiler |
| Sub Section | devel |