Github user anmolnar commented on the issue:
https://github.com/apache/zookeeper/pull/528
I had no luck with verifying a specific macro existence for some reason.
I'm not sure if there's a way at all. Maybe I should check how other projects
are dealing with similar problems.
On the other hand, it's up to us whether we want to support `cppunit`
1.14.0 and move to `pkg-config` or stay on m4 which means folks won't be able
to build ZooKeeper on recent distros. ---
