That worked, thank you: it's always the blindinly obvious that you miss.
Now a different error:
Welcome to OpenMCL Version (Alpha: Darwin) 0.14-031220! ? ;; Compiling /Users/dmagda/Code/lisp/slime/swank-openmcl.lisp... Read error between positions 6699 and 6863 in /Users/dmagda/Code/lisp/slime/swank-openmcl.lisp.
Error in process listener(1): There is no package named "ASDF" . While executing: CCL::%COLLECT-XTOKEN Type :GO to continue, :POP to abort. If continued: Retry finding package with name "ASDF".
Type :? for other options.
I know that "asdf" is a packaging system. I don't remember reading reading anywhere that it's a requirement but a quick grep through the slime directory shows several references to "asdf".