Likely broke things for non-posix threadings....

Update -lldap_r implementation to:
	remove attribute support
	hide thread detachment
	provide concurrency accessors
	provide initialization function
	fix gethostby{addr,name}_r codes (not coverred by HAVE_REENTRANT_FUNCTIONS)
Update servers/libraries to use ldap_pvt_thread_ calls.
Cleanup server codes (no #ifdef HAVE_PTHREAD_THIS or _THATs)!
Removed -llthread

preferred.  ldap_open is to be depreciated.

Assume portable.h has been included
Include ldap_cdefs.h at the top.

is now ignored if it is the same as the real suffix.

	back-ldbm was using a cache specific lock to protect non-reentrant
	database routines from being reenterred.  This is inadequate.
	Also, reentrant database systems calls were serialized unnecessarily.

	Non-reentrant database calls must have a big_mutex.  Implemented
	this within -lldbm itself.  library requires ldbm_initialize()
	be called before any other ldbm call to initialize the big_mutex
	and to do any other db specific initialization (ie: such as
	required for DB2).

The dbc_mutex, dbc_cv, & dbc_readers fileds of dbcache are history.
The "reentrant_database" (REENTRANT_DATABASE) define is also axed.

behind REENTRANT_DATABASE.  rename reentrant_database -> REENTRANT_DATABASE.
When REENTRANT_DATABASE is defined, the simple lock is replaced
with a simple reader/writer lock.  This functionality should be removed
from back-ldbm to libldbm.

is released.  Some other thread may have cache locked but blocking
on parent.  Must give up parent lock before acquiring cache lock.

Have forkandexec() return pid_t instead of int.

Ripple name change through -llber & -lldap.
Update -lldif to use lber_pvt_log_printf() instead of Debug.

Redefine Debug macro to call ldap_log_printf(NULL, lvl, fmt, ...)
Should replace each Debug statement with direct call to ldap_log_printf
passing LDAP session if available.

with some 'make' programs that have a rule to create 'install' from
it there is no 'Makefile'.  (per autoconf 2.12).

Assume entry was deleted from underneath the dn2entry call,  hence
processing is same as if NOID had been returned.

Rewrite all child waits to use wait4 (for consistency only).

has OpenLDAP extensions.  (This may be defined on non-OpenLDAP
implmentations that implement features of our API).
The extensions implied by this flag are TBD.

libldap/string.c will hold various string.h replacements.
Removed liblutil/strdup.c
Moved ldap_pvt_strtok to string.c.
Moved prototype of ldap_pvt_strtok to <ac/string.h>.
Added #define strtok_r ldap_pvt_strtok (if strtok_r doesn't exist).

SLAPD_NEXTID_CHUNK.  Code protects NEXTID file to ensure
its equal to or greater than nextid.  Updated on close
to actual nextid.  next_id_save() could be called periodically
if desired.  Default chunk size is 32.  Define to 1 to disable
chunking.

for this file.  Changes were to NULL the conn->c_dn and conn->c_cdn
after anonymous binds.  Previously they were left to old values.
Backends should do the same.

This removes a race condition upon the entry.

(don't make it conditional on p == NULL)