Customize mail-use-rfc822.

1 files changed, 4 insertions, 2 deletions

diff --git a/lisp/mail/mail-utils.el b/lisp/mail/mail-utils.el
index 002c37d8125..5414bf58fa9 100644
--- a/lisp/mail/mail-utils.el
+++ b/lisp/mail/mail-utils.el
@@ -34,10 +34,12 @@
 (require 'lisp-mode)
                      
 ;;;###autoload
-(defvar mail-use-rfc822 nil "\
+(defcustom mail-use-rfc822 nil "\
 *If non-nil, use a full, hairy RFC822 parser on mail addresses.
 Otherwise, (the default) use a smaller, somewhat faster, and
-often correct parser.")
+often correct parser."
+  :type 'boolean
+  :group 'mail)
 
 ;; Returns t if file FILE is an Rmail file.
 ;;;###autoload