M-x info is missing many files

Hello,

Today I wanted to read libc.info with xemacs. Unfortunately it didn't 
appear after 'M-x info'...
The info files are located in /usr/share/info as are many many others that 
don't appear neither.
I had a look at the "Info-directory-list":

Value: ("/usr/share/xemacs/info/" "/usr/share/xemacs/site-packages/info/" 
"/usr/share/xemacs/mule-packages/info/" 
"/usr/share/xemacs/xemacs-packages/info/" "/usr/local/info/" 
=======>        "/usr/share/info/"           <==== there it is !
"/usr/info/" "/usr/share/xemacs/info/" 
"/usr/share/xemacs/site-packages/info/" 
"/usr/share/xemacs/xemacs-packages/info/")


What is wrong here ? I got used to the xemacs info browser and would very 
much like to use it for all info files...

TIA,

Markus Grunwald
Softwareentwicklung

PRÜFTECHNIK Condition Monitoring GmbH
Oskar-Messter-Straße 19-21
85737 Ismaning
www.pruftechnik.com
Tel: +49 (0)89 99616177
Fax: +49 (0)89 99616200