Make Gnus work for Emacs 22 and XEmacs.

[gnus] / lisp / gnus-sum.el

diff --git a/lisp/gnus-sum.el b/lisp/gnus-sum.el
index c35cb25..d0c50c8 100644 (file)
--- a/lisp/gnus-sum.el
+++ b/lisp/gnus-sum.el
@@ -10769,8 +10769,9 @@ If NO-EXPIRE, auto-expiry will be inhibited."
        (goto-char (+ forward (point)))
        ;; Replace the old mark with the new mark.
         (let ((to-insert
-               (subst-char-in-string (char-after) mark
-                                     (buffer-substring (point) (1+ (point))))))
+               (mm-subst-char-in-string
+               (char-after) mark
+               (buffer-substring (point) (1+ (point))))))
           (delete-region (point) (1+ (point)))
           (insert to-insert))
        ;; Optionally update the marks by some user rule.