Support building against installed Ubuntu APR packages.

* configure.in: Permit usage of installed APR/APR-util if no 
  --with-apr(-util) arguments specified; override the compiler name
  per $apr_config to avoid tag mismatches with APR's bundled GNU
  libtool.
* CHANGES: Update.


git-svn-id: https://svn.apache.org/repos/asf/httpd/flood/trunk@698391 13f79535-47bb-0310-9956-ffa450edef68
2 files changed