./configure --prefix=/usr --with-apxs=/usr/local/Apache2.2.X/bin/apxs \
--with-neon --with-ssl --without-berkeley-db

errors with:
checking for Apache module support via DSO through APXS... found at /usr/local/Apache2.2.X/bin/apxs
checking httpd version... recent enough
configure: Apache Portable Runtime (APR) library configuration
checking for APR... yes
checking APR version... 0.9.6
wanted regexes are 0\.9\.[7-9] 0\.9\.1[0-9] 1\.

This is for apache 2.2.4.