Hereby, I officially DISCONTINUE OS X support of Nexuiz. We can no longer build the engine for OS X, and have no way to fix it.
Reason: no more build machine. The machine we used is no longer accessible to us. Thanks to Willis who provided it to us, but he can no longer.
To get Mac builds running, we need a 24/7 running OS X computer with a fixed IP or DNS name (at least running 10.4) with a current XCode and SDL framework installed. Whether it is PPC or Intel does not matter. We'd need shell access using SSH to that machine (ideally with a shell account created specially for us, it needs no administrator privileges), to continue making OS X builds as part of the regular build process (which is also used for the testing builds).
If no such access is provided to us by anyone, there will be no more Mac builds. As simple as that.