Old Method of Compiling on Mac OS X
From VDrift
Mac OS X
Prerequisites
The VDrift Mac OS X project requires Xcode version 2.2 or later with the "10.4 Universal SDK" and the "X11 SDK" installed. To get Xcode go to http://developer.apple.com/technologies/xcode.html. You'll need to sign up for a free Apple Developer membership.
Download
Get the VDrift source code, either from the latest source release on the VDrift downloads page, or the development version.
Build
Finally open tools/osx/vdrift.xcodeproj and hit "Build" from XCode's "Build" menu.