1 files changed, 6 insertions, 2 deletions

diff --git a/lisp/subr.el b/lisp/subr.el
index 6b9820f3e42..12c8272782c 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -1843,20 +1843,24 @@ Return the modified alist."
       (setq tail (cdr tail)))
     alist))
 
-(defun make-temp-file (prefix &optional dir-flag)
+(defun make-temp-file (prefix &optional dir-flag suffix)
   "Create a temporary file.
 The returned file name (created by appending some random characters at the end
 of PREFIX, and expanding against `temporary-file-directory' if necessary,
 is guaranteed to point to a newly created empty file.
 You can then use `write-region' to write new data into the file.
 
-If DIR-FLAG is non-nil, create a new empty directory instead of a file."
+If DIR-FLAG is non-nil, create a new empty directory instead of a file.
+
+If SUFFIX is non-nil, add that at the end of the file name."
   (let (file)
     (while (condition-case ()
                (progn
                  (setq file
                        (make-temp-name
                         (expand-file-name prefix temporary-file-directory)))
+                 (if suffix
+                     (setq file (concat file suffix)))
                  (if dir-flag
                      (make-directory file)
                    (write-region "" nil file nil 'silent nil 'excl))