4 files changed, 3 insertions, 36 deletions

diff --git a/lisp/gnus/mm-decode.el b/lisp/gnus/mm-decode.el
index 51fcd8bcd5b..89dc608cc88 100644
--- a/lisp/gnus/mm-decode.el
+++ b/lisp/gnus/mm-decode.el
@@ -1806,7 +1806,7 @@ If RECURSIVE, search recursively."
                                                                  nil t))
                               (not (eq charset 'ascii)))
                          (decode-coding-string (buffer-string) charset)
-                       (mm-string-as-multibyte (buffer-string)))
+                       (string-as-multibyte (buffer-string)))
                    (erase-buffer)
                    (mm-enable-multibyte)))
          (goto-char (point-min))
diff --git a/lisp/gnus/mm-util.el b/lisp/gnus/mm-util.el
index 234ad3d3121..c0f8742504e 100644
--- a/lisp/gnus/mm-util.el
+++ b/lisp/gnus/mm-util.el
@@ -29,39 +29,6 @@
 
 (defvar mm-mime-mule-charset-alist)
 
-;; Emulate functions that are not available in every (X)Emacs version.
-;; The name of a function is prefixed with mm-, like `mm-char-int' for
-;; `char-int' that is a native XEmacs function, not available in Emacs.
-;; Gnus programs all should use mm- functions, not the original ones.
-(eval-and-compile
-  (mapc
-   (lambda (elem)
-     (let ((nfunc (intern (format "mm-%s" (car elem)))))
-       (if (fboundp (car elem))
-           (defalias nfunc (car elem))
-         (defalias nfunc (cdr elem)))))
-   `(
-     ;; string-as-multibyte often doesn't really do what you think it does.
-     ;; Example:
-     ;;    (aref (string-as-multibyte "\201") 0) -> 129 (aka ?\201)
-     ;;    (aref (string-as-multibyte "\300") 0) -> 192 (aka ?\300)
-     ;;    (aref (string-as-multibyte "\300\201") 0) -> 192 (aka ?\300)
-     ;;    (aref (string-as-multibyte "\300\201") 1) -> 129 (aka ?\201)
-     ;; but
-     ;;    (aref (string-as-multibyte "\201\300") 0) -> 2240
-     ;;    (aref (string-as-multibyte "\201\300") 1) -> <error>
-     ;; Better use string-to-multibyte or encode-coding-string.
-     ;; If you really need string-as-multibyte somewhere it's usually
-     ;; because you're using the internal emacs-mule representation (maybe
-     ;; because you're using string-as-unibyte somewhere), which is
-     ;; generally a problem in itself.
-     ;; Here is an approximate equivalence table to help think about it:
-     ;; (string-as-multibyte s)   ~= (decode-coding-string s 'emacs-mule)
-     ;; (string-to-multibyte s)   ~= (decode-coding-string s 'binary)
-     ;; (string-make-multibyte s) ~= (decode-coding-string s locale-coding-system)
-     ;; `string-as-multibyte' is an Emacs function, not available in XEmacs.
-     (string-as-multibyte . identity))))
-
 (defun mm-ucs-to-char (codepoint)
   "Convert Unicode codepoint to character."
   (or (decode-char 'ucs codepoint) ?#))
diff --git a/lisp/gnus/mml.el b/lisp/gnus/mml.el
index f9d6cd877b6..97cc87d06e3 100644
--- a/lisp/gnus/mml.el
+++ b/lisp/gnus/mml.el
@@ -664,7 +664,7 @@ be \"related\" or \"alternate\"."
               (if (setq encoding (cdr (assq 'encoding cont)))
                   (setq encoding (intern (downcase encoding))))
               (setq encoding (mm-encode-buffer type encoding)
-                    coded (mm-string-as-multibyte (buffer-string))))
+                    coded (string-as-multibyte (buffer-string))))
             (mml-insert-mime-headers cont type charset encoding nil)
             (insert "\n" coded))))
        ((eq (car cont) 'external)
diff --git a/lisp/gnus/nnmail.el b/lisp/gnus/nnmail.el
index 1af04fd3543..94589e1734d 100644
--- a/lisp/gnus/nnmail.el
+++ b/lisp/gnus/nnmail.el
@@ -1245,7 +1245,7 @@ Return the number of characters in the body."
     (insert (format "Xref: %s" (system-name)))
     (while group-alist
       (insert (if (mm-multibyte-p)
-                  (mm-string-as-multibyte
+                  (string-as-multibyte
                    (format " %s:%d" (caar group-alist) (cdar group-alist)))
                 (string-as-unibyte
                  (format " %s:%d" (caar group-alist) (cdar group-alist)))))