If it won't let us run in APR_POOLS_DEBUG mode, it's broken.

  We should be implementing this all in terms of apr_threads, and fix
  the apr_pools code to allow 'trusted subpools' with their own root
  allocations that bypass the mutexes.  Unrooting a pool just glosses
  over the real problems.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@89885 13f79535-47bb-0310-9956-ffa450edef68