State of the head

I tried to build from the svn head to create some patches to the current code, but am running into quite a mess building the Mac target. Either the or the instructions have issues. If it needs doing, I could dig in and fix up the Mac build, but I suspect someone more familiar with the build process would be more efficient.

Which build targets are typically up to date in the head for people that might want to run it for testing or patching? (Please say Linux, I could dust off a Linux box.)

The Mac build process is usually the most up-to-date, since I have one. Except that you should be using the Xcode project, not the command line scripts. I've tried to keep, etc. working, but I'll admit to not spending much time on it. Is using Xcode a problem?