• This is the system documentation for GNUstep, including both user and developer documentation. GNUstep provides an object-oriented application framework and toolset for use on a wide variety of computer platforms. It is based on the original OpenStep specification created by NeXT, Inc.

Developer Documentation

The links here describe the development facilities provided under GNUstep. The Base Programming Manual introduces GNUstep as a whole, Objective-C, its main language, and the Base library, its basic set of non-graphical utility classes. The Make Utility makes project building easy and is highly recommended. The “API” links go to Javadoc-like reference pages on the Base and other GNUstep libraries.