openldap: upgrade to release 2.6.4
Fixes CVE-2023-2953.
Because NSS support has been removed in release 2.5,
switch TLS/SSL module used by OpenLDAP to OpenSSL.
Add -pthread flag to openldap_LDFLAGS when building on Linux.
This avoids errors that occur in libcrypto.a (libcrypto-lib-threads_pthread.o).
Change-Id: I4779ce40233d144d930f20e85db7b4ba08f91ea1
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/143646
Tested-by: Taichi Haradaguchi <20001722@ymail.ne.jp>
Reviewed-by: Taichi Haradaguchi <20001722@ymail.ne.jp>
(cherry picked from commit
299ea597d154e1dc3d0f09adf67e05747cca54cf)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/154414
Tested-by: Jenkins
Reviewed-by: خالد حسني <khaled@libreoffice.org>