Yes, my script got the NativeRect error tonight. Last night I was offline reconstructing my disk after I botched some code in a home made gpt partitioning tool (it made a full recovery--phew).

I think I'm going to have to figure out how to build with -m32 so that it works on versions before 10.6. I haven't looked into it but I suspect you can "lipo" the 32 and the 64 bit executables together like you can with PowerPC and Intel and so that might be an option too.