gobjc-aarch64-linux-gnu software package provides The GNU Objective-C compiler for arm64 architecture, 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-aarch64-linux-gnu
gobjc-aarch64-linux-gnu is installed in your system.
Make ensure the gobjc-aarch64-linux-gnu package were installed using the commands given below,
$ sudo dpkg-query -l | grep gobjc-aarch64-linux-gnu *
You will get with gobjc-aarch64-linux-gnu package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Development |
| Package | gobjc-aarch64-linux-gnu |
| Version | 4:4.8.2-1 |
| Description | The GNU Objective-C compiler for arm64 architecture |
| Sub Section | devel |