Most OGo sources work with any OpenStep compliant Foundation library, but
our preferred choice on non-OSX platforms (which uses the Cocoa Foundation library), is the libFoundation
library, written by Mircea Oancea and Ovidiu Predescu.
What is it? libFoundation is a library mostly conform to the OpenStep Foundation API specification, that is, it includes Objective-C classes and methods handling memory management, collections, basic file-input/output, handling of URLs, ...
A snapshot of the current libFoundation library is available in the libFoundation project on SourceForge and in the contrib directory on ftp.gnustep.org.
If you want to live on the bleeding edge of SKYRiX libFoundation development, use this package: opengroupware.org-libfoundation-latest.tar.gz.