(require 'gnus-msg)
(require 'gnus-sum)
+(eval-when-compile
+ (defvar mh-lib-progs))
+
(defun gnus-summary-save-article-folder (&optional arg)
"Append the current article to an mh folder.
If N is a positive number, save the N next articles.
If N is nil and any articles have been marked with the process mark,
save those articles instead."
(interactive "P")
+ (require 'gnus-art)
(let ((gnus-default-article-saver 'gnus-summary-save-in-folder))
(gnus-summary-save-article arg)))