Sync a final change from pmail.el:

Chong Yidong  <cyd at stupidchicken.com>

(rmail-buffer-swapped): Mark as permanent local.

diff --git a/lisp/mail/rmail.el b/lisp/mail/rmail.el
index 850b9706cf627b04f8f83368596f409c9a43dbec..562910ea4967929c795ed0c2d84d5439a0b6b507 100644 (file)
--- a/lisp/mail/rmail.el
+++ b/lisp/mail/rmail.el
@@ -581,7 +581,7 @@ by substituting the new message number into the existing list.")
 
 (defvar rmail-buffer-swapped nil
   "If non-nil, `rmail-buffer' is swapped with `rmail-view-buffer'.")
-(make-variable-buffer-local 'rmail-buffer-swapped)
+(put 'rmail-buffer-swapped 'permanent-local t)
 
 (defvar rmail-view-buffer nil
   "Buffer which holds RMAIL message for MIME displaying.")