(defmacro-mundanely defvar (var &optional (val nil valp) (doc nil docp))
#!+sb-doc
- "Define a global variable at top level. Declare the variable
+ "Defines a special variable at top level. Declare the variable
SPECIAL and, optionally, initialize it. If the variable already has a
value, the old value is not clobbered. The third argument is an optional
documentation string for the variable."