GNUstep System Documentation

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

User Documentation

The links here provide some basic information on setting up and using a GNUstep system.

User FAQ (PDF)
Developer FAQ (PDF)
How-To (PDF)
Filesystem Layout (PDF)
The GUI portion of GNUstep.

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.

Base Programming Manual (PDF)
Make Utility  (Release notes) (PDF)
Command-line Tools
Base Library API  (Release notes)
Base Additions API
OpenStep and OS X Compliance
GNUstep Coding Standards (PDF)
Debugging Information
The GUI portion of GNUstep.
GUI Programming Manual (PDF)
GUI Library API  (Release notes)
GUI Additions API
OpenStep and OS X Compliance

Development Tools

Project Center provides an integrated development environment (IDE) for GNUstep. Gorm is a graphical user interface construction tool. Using these, developers can quickly design and build cross-platform applications in Objective-C or Java.