"At runtime, we could use cond for that, but since that is a macro as well, we can’t use it at compile time." D'oh. Who writes a lisp with macros where you can

"At runtime, we could use cond for that, but since that is a macro as well, we can’t use it at compile time." D'oh. Who writes a lisp with macros where you can't use macros at macro-expansion-time??