--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,24 @@
 Summary of changes for version 2.1.x:
 ------------------------------------
 
+  * If you are using GNU Emacs 19.34 or earlier, you will need to add
+    the following code to your ~/.emacs file in order to use Emacs
+    Octave mode:
+
+      ;; Set up the custom library.
+      ;; taken from http://www.dina.kvl.dk/~abraham/custom/
+      (eval-and-compile
+	(condition-case ()
+	    (require 'custom)
+	  (error nil))
+	(if (and (featurep 'custom) (fboundp 'custom-declare-variable))
+	    nil ;; We've got what we needed
+	  ;; We have the old custom-library, hack around it!
+	  (defmacro defgroup (&rest args)
+	    nil)
+	  (defmacro defcustom (var value doc &rest args) 
+	    (` (defvar (, var) (, value) (, doc))))))
+
   * When `format +' is in effect, Octave uses the following symbols to
     provide more information about the values in a matrix: