Anyone got an idea why I can't use these modules?

Code:
# rcapache2 restart
httpd2-prefork: Syntax error on line 117 of /etc/apache2/httpd.conf: Syntax error on line 30 of /etc/apache2/sysconfig.d/loadmodule.conf: Cannot load /usr/lib64/apache2/mod_dav_svn.so into server: /usr/lib64/apache2/mod_dav_svn.so: undefined symbol: svn_urlpath__canonicalize
Code:
# rpm -qa | grep -i -e dav -e svn -e apache -e subversion
subversion-server-1.6.17-1.27.2
apache2-2.2.12-1.42.1
cryptsetup-1.0.5_SVNr46-58.37.3
apache2-prefork-2.2.12-1.42.1
subversion-doc-1.4-1.15
subversion-1.6.17-1.11.1
apache2-utils-2.2.12-1.42.1
libcryptsetup0-1.0.5_SVNr46-58.37.3
SuSEfirewall2-3.6_SVNr208-2.7.1
subversion-tools-1.6.17-1.27.2
Code:
# zypper lr
#  | Alias                                              | Name                       | Enabled | Refresh
---+----------------------------------------------------+----------------------------+---------+--------
 1 | SLE11-SDK-SP3-Pool                                 | SLE11-SDK-SP3-Pool         | Yes     | Yes
 2 | SLE11-SDK-SP3-Updates/                             | SLE11-SDK-SP3-Updates      | Yes     | Yes
 9 | SLES11-SP3-Pool            | SLES11-SP3-Pool            | Yes     | Yes
10 | SLES11-SP3-Updates         | SLES11-SP3-Updates         | Yes     | Yes