`set-coding-category-system' to set up coding-system for
coding-category.
;; (setq default-sendmail-coding-system default-coding)
(set-coding-priority-list categories)
(while priority
- (set (car categories) (car priority))
+ (set-coding-category-system (car categories) (car priority))
(setq priority (cdr priority) categories (cdr categories)))
;; (update-coding-systems-internal)
))))