Fix ITS#1865, (ITS#1764?) cond_broadcast behavior was broken

libraries/libldap_r/thr_nt.c

@@ -109,7 +109,8 @@ ldap_pvt_thread_cond_wait( ldap_pvt_thread_cond_t *cond,
 int
 ldap_pvt_thread_cond_broadcast( ldap_pvt_thread_cond_t *cond )
 {
-	SetEvent( *cond );
+	while ( WaitForSingleObject( *cond, 0 ) == WAIT_TIMEOUT )
+		SetEvent( *cond );
 	return( 0 );
 }