As the author stated:
OSX users: You need at least OSX 10.6 (Snow Leopard) to run OpenCL apps of any kind. Due to bug in OSX's OpenCL stack, use
-w 64 -na otherwise DiabloMiner
will not function.
IOW, change
-w 128
to
-w 64 -na
The other options would be OK, methinks.