--- a/.emacs-my	Fri Jan 21 14:57:49 2011 +0200
+++ b/.emacs-my	Sun Jan 23 11:13:42 2011 +0200
@@ -341,8 +341,10 @@
      (add-to-list 'grep-find-ignored-directories "dist" t)
      (add-to-list 'grep-find-ignored-directories "lib" t)
 
-     (add-to-list 'grep-find-ignored-files "*TAGS")
-     (add-to-list 'grep-find-ignored-files "GPATH")
+     (when (boundp 'grep-find-ignored-files)
+       (add-to-list 'grep-find-ignored-files "*TAGS")
+       (add-to-list 'grep-find-ignored-files "GPATH")
+       )
      ))
 
 (global-set-key [M-f7] 'rgrep)