Build failed (LLVM GCC 4.2 Error)

I've attempted to build my game with xcode 4.1 (build 48110) on mac osx lion using it2d 1.5 preview 1. I'm able to build the aquarium project example that comes with it2d, but whenever I try to run a custom project I get this error. I've tried to compare the build settings between the two projects, but there are some options that aren't available to me (aquarium uses 2.2.1 as deployment target, which isn't available for me).

I've got it working before, but that was on another mac (and osx leopard) and an earlier version of the project. Are there any settings I need to configure before I attempt to build? That have already been set in the aquarium example? Any available documentation for these steps?

Here's the error log: pastebin.com/wtAXerL5