First:
sudo apt-get install gnustep
Second:
You will need to install gnustep-devel package too. But one of its dependency is a package called gorm.app which is not present in the repos (at least not at the time of writing this blog). So goto this URL (http://
deb http://ftp.de.debian.org/debian squeeze mainthen:
sudo apt-get update
sudo apt-get install gorm.app
sudo apt-get install gnustep-devel
Also, note that there is a suspected bug in the apt (https://bugs.launchpad.net/ubuntu/+source/apt/+bug/574886?comments=all). So if you see an error in the "sudo at-get update" on some lines like this "(-5 - No address associated with hostname)", try two things:
1) If you can, unplug the router (if there is any) and hook the computer directly to the modem and then rerun "sudo apt-get update"
2) there is an alternative workaround here in post #17
http://