+ Merge from 21.5.
+ * configure.in: Fixed `LDAP_OPT_ON' libraries configuration
+ introduced in local 2005-03-13 change of `configure.in'. However,
+ do not check for internal `-lber' `ber_pvt_opt_on' symbol as done
+ in upstream. This symbol is not part of any published interface,
+ it may exist or not exist, depending on openldap version. Cryptic
+ comment before using it in upstream 21.5 source did not state
+ precisely under which circumstances checking for it was useful,
+ which sort of user code tried to link the symbol. So in local
+ 21.5 dismissed both the code and the comment without writing a
+ cleaner equivalent.
+ * etc/NEWS: Document.