* gnus-art.el (gnus-use-idna)

[gnus] / lisp / nnheader.el

diff --git a/lisp/nnheader.el b/lisp/nnheader.el
index 1e979c3..031d2c3 100644 (file)
--- a/lisp/nnheader.el
+++ b/lisp/nnheader.el
@@ -395,7 +395,8 @@ on your system, you could say something like:
               out)))
      out))
 
-(defvar nnheader-uniquify-message-id nil)
+(eval-and-compile
+  (defvar nnheader-uniquify-message-id nil))
 
 (defmacro nnheader-nov-read-message-id (&optional number)
   `(let ((id (nnheader-nov-field)))