(ITS#8814) aarch64 autoconf error

[stephane@qnap.com]

Full_Name: stephane guerithault
Version: 2.4.45
OS: Xenial Ubuntu arm64 ( aarch64)
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (2a06:4282:6:6b00:b0e4:f061:db67:e31e)


Open Ldap autoconf script need uptade to compile from Source on aarch64
architecture (arm64)

Configuring OpenLDAP 2.4.45-Release ...
checking build system type... build/config.guess: unable to guess system type

This script, last modified 2010-09-24-OpenLDAP, has failed to recognize
the operating system you are using. It is advised that you
download the most up to date version of the config scripts from

  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
and
  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD

If the version you run (build/config.guess) is already up to date, please
send the following data and any information you think might be
pertinent to <config-patches@gnu.org> in order to provide the needed
information to handle your system.

config.guess timestamp = 2010-09-24-OpenLDAP

uname -m = aarch64
uname -r = 4.2.8
uname -s = Linux
uname -v = #1 SMP Thu Feb 15 01:39:52 CST 2018

/usr/bin/uname -p =
/bin/uname -X     =

hostinfo               =
/bin/universe          =
/usr/bin/arch -k       =
/bin/arch              =
/usr/bin/oslevel       =
/usr/convex/getsysinfo =

UNAME_MACHINE = aarch64
UNAME_RELEASE = 4.2.8
UNAME_SYSTEM  = Linux
UNAME_VERSION = #1 SMP Thu Feb 15 01:39:52 CST 2018
configure: error: cannot guess build type; you must specify one


root@TS-128A:/SRC/openldap-2.4.45# uname -a
Linux TS-128A 4.2.8 #1 SMP Thu Feb 15 01:39:52 CST 2018 aarch64 aarch64 aarch64
GNU/Linux