1 files changed, 6 insertions, 0 deletions

diff --git a/lisp/gnus/gnus-picon.el b/lisp/gnus/gnus-picon.el
index e1ee6b78403..c462345fc5c 100644
--- a/lisp/gnus/gnus-picon.el
+++ b/lisp/gnus/gnus-picon.el
@@ -38,6 +38,10 @@
 ;;
 ;;; Code:
 
+;; For Emacs < 22.2.
+(eval-and-compile
+  (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
+
 (eval-when-compile (require 'cl))
 
 (require 'gnus)
@@ -165,6 +169,8 @@ replacement is added."
 
 ;;; Functions that does picon transformations:
 
+(declare-function image-size "image.c" (spec &optional pixels frame))
+
 (defun gnus-picon-transform-address (header category)
   (gnus-with-article-headers
    (let ((addresses