[Typo3-dev] Authentication Services and TYPO3 3.8

[Sven Wilhelm]

Hi,

I'm on the way for writing an authentication service module for
authenticate users using an smime certificate.

I tried to install cc_sv_auth using the xclass way and get the following
 error:

Fatal error: Cannot redeclare class tx_sv_authbase in
/usr/local/share/typo3/typo3_src-3.8.0/typo3/sysext/sv/class.tx_sv_authbase.php
on line 62

what did I wrong? any hints?

thanks

sven