Metrowerks Visual SourceSafe for Mac

From Metrowerks:

Metrowerks Visual SourceSafe for Macintosh is the only commercial cross-platform version control solution for the Macintosh. MW Visual SourceSafe for Macintosh tracks and stores changes to a file so that developers can review the file's history, return to earlier versions, and develop programs concurrently. It can be used by individual users, but is specifically designed to enhance the productivity of development teams. MW Visual SourceSafe for Macintosh is fully compatible with Microsoft Visual SourceSafe. Access to MW Visual SourceSafe's powerful version control features is available through the included stand-alone Client application, or integrated into the CodeWarrior IDE (1.7.2 or later) through an IDE VCS plug-in.