diff -ru fontconfig-2.3.93.20060210.orig/src/fccache.c fontconfig-2.3.93.20060210/src/fccache.c
--- fontconfig-2.3.93.20060210.orig/src/fccache.c	2006-02-10 13:06:08.000000000 +0100
+++ fontconfig-2.3.93.20060210/src/fccache.c	2006-02-10 14:39:40.000000000 +0100
@@ -741,7 +741,11 @@
      * the cache file, the cache is not valid
      */
     if (dir_stat.st_mtime > file_stat.st_mtime)
+    {
+        fprintf (stderr, "FC: cache for %s is outdated,\n"
+		 "    consider running \"fc-cache\" as root!\n", dir);
         return FcFalse;
+    }
 
     return FcTrue;