gobjc-multilib software package provides GNU Objective-C compiler (multilib files), you can install in your Ubuntu 16.10 (Yakkety Yak) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gobjc-multilib
gobjc-multilib is installed in your system.
Make ensure the gobjc-multilib package were installed using the commands given below,
$ sudo dpkg-query -l | grep gobjc-multilib *
You will get with gobjc-multilib package name, version, architecture and description in a table
| Distro | Ubuntu 16 10 yakkety yak |
| Section | Development |
| Package | gobjc-multilib |
| Version | 4:6.1.1-1ubuntu2 |
| Description | GNU Objective-C compiler (multilib files) |
| Sub Section | Devel |