A Debian user reported that there was a typo in README. Following patch can be applied:
--- README 2007-01-18 05:02:57.000000000 +1100
+++ README.cle 2007-10-05 12:16:28.000000000 +1000
@@ -5,7 +5,7 @@ Information
The plugin itself cannot be used for defining the keyboard
layouts one wants to use, this is done the XKB way - either
-in XF86Config or by xetskbmap tool.
+in XF86Config or by setxkbmap tool.
The plugin may be used as an indicator for the current layout
and as a switcher to the next layout also.
Maybe refreshing the patch (XF86Config -> xorg.conf) would be an option too :)