This is just for others looking for resolving problem with starting httpd and getting error:
/usr/sbin/httpd: undefined symbol: apr_ldap_url_parse after APR (utils) installation.
http://apr.apache.org/
Just configure it properly, esspecialy ldap section is very important.
./configure --prefix=/usr --libdir=/usr/lib64 --with-apr=/usr/bin/apr-1-config --with-ldap-include=/usr/include/ --with-ldap-lib=/usr/lib64/libldap.so --with-ldap=ldap