My client using webobjects 4.5(one of the last versions that supports Objective-C) on backend. And I need to develop using this framework. Problem is that I'm using Ubuntu linux I've tried to found how I can install framework on my OS, but found only WO 5.4 What can you advise? How I can install WO 4.5 On ubuntu?
P.S. Found GnuStep project. Is it fully compatible alternative to WO 4.5?