Build the Ubuntu/Kubuntu Objective-C Development Environment

I have been studying IOS development recently, but I have no MAC machine in my hand. I thought about playing with the entire Black apple, but I have no idea that both of my home machines are AMD, look at the pains of netizens who have made a black apple on AMD. I chose to give up temporarily.

At this time, I thought of GNUStep, which provides a comprehensive Objective-C development environment. Although it cannot be perfectly compatible with and replace Cocoa, it is enough for students who are learning or getting started.

It was originally intended to be compiled by myself using the source file of GNUStep, but it was difficult. I have referenced many articles, but there are not many situations like me. One of the main reasons is that, it is because there are too many dependencies to be processed, and I am an AMD processor and a 64-bit machine. In short, it ends with a failure. In the end, I had to ask apt-get for help. Sure enough, this is the simplest and safest method. I just got it with one command, and some friends have done it online.
 

By the way, paste my local environment:
Linux 3.2.0-25 generic
Kde SC version: 4.8.4
OS: Ubuntu 12.04 LTS 64-bit