LDAP on AIX build farm animals

Hello,

On several AIX BF animals such as tern, I see evidence that it might
be using IBM LDAP:

checking for ldap_initialize... no

And yet the configure options apparently intended to use OpenLDAP:

configure: using CPPFLAGS=
-I/home/nm/sw/nopath/libxml2-32/include/libxml2
-I/home/nm/sw/nopath/uuid-32/include
-I/home/nm/sw/nopath/openldap-32/include
-I/home/nm/sw/nopath/icu58.2-32/include
-I/home/nm/sw/nopath/libxml2-32/include
configure: using LDFLAGS= -L/home/nm/sw/nopath/libxml2-32/lib
-L/home/nm/sw/nopath/uuid-32/lib -L/home/nm/sw/nopath/openldap-32/lib
-L/home/nm/sw/nopath/icu58.2-32/lib
-L/home/nm/sw/nopath/libxml2-32/lib

Another explanation is that it is actually using OpenLDAP, but it's a
version so ancient that it doesn't have OpenLDAP's non-standard
ldap_initialize() function (that'd put it in the 20th century,
pre-2.0).

Personally I think it's valuable to have the IBM LDAP client library
tested in the build farm, since we already have the OpenLDAP,
Microsoft and Apple libraries covered. I wonder if that is the
complete set of surviving libldap implementations.

Would it be useful for the buildfarm to dump ldd (or equivalent)
output for the binaries it's running so that we can see which
libraries it finished up linking?

--
Thomas Munro
https://enterprisedb.com