Make Gnus work for Emacs 22 and XEmacs.

lisp/gnus/ChangeLog

@@ -1,3 +1,10 @@
+2010-09-20  Katsumi Yamaoka  <yamaoka@jpl.org>
+
+	* gnus-html.el (gnus-html-image-fetched): Pass arg to kill-buffer.
+
+	* gnus-sum.el (gnus-summary-update-mark): Replace subst-char-in-string
+	by mm-subst-char-in-string.
+
 2010-09-19  Lars Magne Ingebrigtsen  <larsi@gnus.org>
 
 	* nnimap.el (nnimap-wait-for-connection): Avoid a race condition while

lisp/gnus/gnus-html.el

@@ -339,7 +339,7 @@ fit these criteria."
     (when (search-forward "\n\n" nil t)
       ;; Write region (image data) silently
       (write-region (point) (point-max) file nil 1)
-      (kill-buffer)
+      (kill-buffer (current-buffer))
       (when (and (buffer-live-p buffer)
 		 ;; If the `image' has no marker, do not replace anything
 		 (cadr image)

lisp/gnus/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.