OSX non compiling

Hi, So I installed BMax 1.30 on my g4 iMac running 10.4.11

I get this error when trying to compile any of the demos:

Building oldskool2
Compiling:oldskool2.bmx
sh: line 1: as: command not found
Build Error: Failed to assemble /Applications/BlitzMax/samples/flameduck/oldskool2/.bmx/oldskool2.bmx.gui.debug.macos.ppc.s
Process complete


any ideas?

Do you have XCode installed?

I just saw the sticky thread...I am quite a noob now :p