Patch provided by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.

-DNO_THREADS is now default.

Suggested by Jauder Ho <jauderho@transmeta.com>.

Fix suggested by Hallvard Furuseth <h.b.furuseth@usit.uio.no>.

Must enable -DLDAP_ALLOW_NULL_SEARCH_BASE to use.

Default to Make-common settings (-DNO_THREADS).

Modified for OpenLDAP use by Daniel J. Gregor <djg@gregor.com>.

	Derived from public posting to ldap@umich.edu
	by Kurt Spanier <kurt.spanier@zdv.uni-tuebingen.de>
	See Make-common.dist for DB2 options

	SHA1 support is contributed by Daniel J. Gregor <dj@gregor.com>
	MD5 support is contributed by me <kurt@OpenLDAP.org>
	Uses public domain MD5 routines
	Uses ISC/IBM freely redistributable Base64 routines
	SHA1 support requires external SHA1 routines