Dependency problem when installing Shibboleth 2.5 on RHEL

[Rainer Hoerbe]

I am stuck with a dependency issue similar to this posting:
http://shibboleth.1660669.n2.nabble.com/Package-Error-when-Installing-Service-Provider-td6433708.html

I have: CentOS 6.3 x86-64
I did:
# yum install shibboleth.x86_64
.. then I realized that I have the RHEL_5 yum repository for shibboleth. So I installed the yum repository for RHEL_6 after that. Yet the problem remains:

# yum install shibboleth.x86_64
...
Resolving Dependencies
--> Running transaction check
---> Package shibboleth.x86_64 0:2.5.0-2.1 will be installed
--> Processing Dependency: libodbc.so.1()(64bit) for package: shibboleth-2.5.0-2.1.x86_64
...
---> Package libxmltooling6.x86_64 0:1.5.0-2.1 will be installed
--> Processing Dependency: libcurl.so.3()(64bit) for package: libxmltooling6-1.5.0-2.1.x86_64
--> Finished Dependency Resolution
Error: Package: shibboleth-2.5.0-2.1.x86_64 (security_shibboleth)
           Requires: libodbc.so.1()(64bit)
Error: Package: libxmltooling6-1.5.0-2.1.x86_64 (security_shibboleth)
           Requires: libcurl.so.3()(64bit)

# yum list installed |grep libcurl
libcurl.x86_64                     7.19.7-26.el6_2.4                  @updates  

libodbc is not installed.

Thanks for helping.
- Rainer Hörbe