I reconfigured with
[root@localhost base]# ./configure --with-xml-prefix=/usr/local/lib
I get
*** 'xml-config --version' returned 2.6.10, but libxml (2.2.9)
*** was found! If xml-config was correct, then it is best
*** to remove the old version of libxml. You may also be able to fix
the error
*** by modifying your LD_LIBRARY_PATH enviroment variable, or by
editing
*** /etc/ld.so.conf. Make sure you have run ldconfig if that is
*** required on your system.
*** If xml-config was wrong, set the environment variable XML_CONFIG
*** to point to the correct copy of xml-config, and remove the file
config.cache
*** before re-running configure
no