Diagnose incompatible OpenLDAP versions during build and test.

Noah Misch <noah@leadboat.com>

Commit: 4c6d0abde9e6c6c0f5b7b0eec780253baacea7bc
Author: Noah Misch <noah@leadboat.com>
Date: 2014-07-22T15:02:25Z
Releases: 9.0.19
Diagnose incompatible OpenLDAP versions during build and test.

With OpenLDAP versions 2.4.24 through 2.4.31, inclusive, PostgreSQL
backends can crash at exit.  Raise a warning during "configure" based on
the compile-time OpenLDAP version number, and test the crash scenario in
the dblink test suite.  Back-patch to 9.0 (all supported versions).

Files