Source of Nothingness - 2008-03-05 :

* 2008-03-05 :

More generally, an implementation of Common Lisp has great latitude in deciding exactly when to expand macro calls within a program. For example, it is acceptable for the defun special form to expand all macro calls within its body at the time the defun form is executed and record the fully expanded body as the body of the function being defined.
で、例えば defun での関数定義時にマクロを展開することもOKと書いてありました。

update : 2008-03-05 (Wed) 00:27:35