Merge from gnus--rel--5.10

Patches applied:

 * gnus--rel--5.10  (patch 168)

   - Update from CVS

2006-11-21  Katsumi Yamaoka  <yamaoka@jpl.org>

   * lisp/gnus/mm-util.el (mm-string-to-multibyte): Alias to identity in XEmacs.

Revision: emacs@sv.gnu.org/emacs--devo--0--patch-527

lisp/gnus/ChangeLog

@@ -14,6 +14,10 @@
 	(gnus-valid-select-methods, total-expire, gnus-summary-line-format)
 	(gnus-group-read-only-p): Fix space/tab mixup in docstrings.
 
+2006-11-21  Katsumi Yamaoka  <yamaoka@jpl.org>
+
+	* mm-util.el (mm-string-to-multibyte): Alias to identity in XEmacs.
+
 2006-11-18  Andreas Seltenreich  <uwi7@rz.uni-karlsruhe.de>
 
 	* mm-uu.el (mm-uu-pgp-signed-extract-1): Make last fix more thorough

lisp/gnus/mm-util.el

@@ -92,12 +92,6 @@
      ;; (string-to-multibyte s)   ~= (decode-coding-string s 'binary)
      ;; (string-make-multibyte s) ~= (decode-coding-string s locale-coding-system)
      (string-as-multibyte . identity)
-     (string-to-multibyte
-      . (lambda (string)
-	  "Return a multibyte string with the same individual chars as string."
-	  (mapconcat
-	   (lambda (ch) (mm-string-as-multibyte (char-to-string ch)))
-	   string "")))
      (multibyte-string-p . ignore)
      (insert-byte . insert-char)
      (multibyte-char-to-unibyte . identity))))
@@ -128,6 +122,19 @@ This is a compatibility function for different Emacsen."
 	  (setq start (- (length string) tail))))
       string))))
 
+(defalias 'mm-string-to-multibyte
+  (cond
+   ((featurep 'xemacs)
+    'identity)
+   ((fboundp 'string-to-multibyte)
+    'string-to-multibyte)
+   (t
+    (lambda (string)
+      "Return a multibyte string with the same individual chars as string."
+      (mapconcat
+       (lambda (ch) (mm-string-as-multibyte (char-to-string ch)))
+       string "")))))
+
 (eval-and-compile
   (defalias 'mm-char-or-char-int-p
     (cond