Add (require 'rmail) so the macro will be byte-compiled properly.

diff --git a/lisp/mail/rmailout.el b/lisp/mail/rmailout.el
index 3ad51f0..e3acb8b 100644 (file)
--- a/lisp/mail/rmailout.el
+++ b/lisp/mail/rmailout.el
@@ -23,6 +23,8 @@
 
 ;;; Code:
 
+(require 'rmail)
+
 ;; Temporary until Emacs always has this variable.
 (defvar rmail-delete-after-output nil
   "*Non-nil means automatically delete a message that is copied to a file.")