mod_auth_radius

Hi All, is there a tutorial how to install mod_auth_radius on an apache 2.xx server? The howto on the freeradius webpage is a little bit deprecated i guess. i get an error when starting the apache server after installing mod_auth_radius: # service httpd start Starting httpd: httpd: Syntax error on line 205 of /etc/httpd/conf/httpd.conf: Cannot load /usr/lib/httpd/modules/mod_auth_radius-2.0.so into server: /usr/lib/httpd/modules/mod_auth_radius-2.0.so: undefined symbol: ap_snprintf [FAILED] Thanks for your answers. Markus