If you encounter an error like this one on your SVN client:
svn: OPTIONS di ‘https://192.168.1.36/svn/myprj‘: SSL handshake failed: SSL error: Key usage violation in certificate has been detected. (https://192.168.1.36)
you can try to fix your problem linking your libneon-gnutls.so.27 library used by your svn client to /usr/lib/libneon.so.27.
Try with this one:
mv /usr/lib/libneon-gnutls.so.27 /usr/lib/libneon-gnutls.so.27.old
ln -s /usr/lib/libneon.so.27 /usr/lib/libneon-gnutls.so.27
Tested on Debian 6.0 and Ubuntu 11.10