(calendar-absolute-from-julian): Declare as a function.

lisp/calendar/holidays.el

@@ -488,6 +488,9 @@ is non-nil)."
        (list (list (calendar-gregorian-from-absolute (+ abs-easter n))
                    string))))))
 
+;; Prior call to calendar-julian-from-absolute will autoload cal-julian.
+(declare-function calendar-absolute-from-julian "cal-julian" (date))
+
 (defun holiday-greek-orthodox-easter ()
   "Date of Easter according to the rule of the Council of Nicaea."
   (let ((m displayed-month)