Variable: COMMON-LISP:*MACROEXPAND-HOOK*

The value of this variable must be a designator for a function that can take three arguments, a macro expander function, the macro form to be expanded, and the lexical environment to expand in. The function should return the expanded form. This function is called by MACROEXPAND-1 whenever a runtime expansion is needed. Initially this is set to FUNCALL.

Value

funcall