X-Recipient:	archive-cygwin AT delorie DOT com
X-Original-To:	cygwin AT cygwin DOT com
Delivered-To:	cygwin AT cygwin DOT com
DMARC-Filter:	OpenDMARC Filter v1.3.2 sourceware.org F40F93857815
Authentication-Results:	sourceware.org; dmarc=none (p=none dis=none)
	header.from=SystematicSw.ab.ca
Authentication-Results:	sourceware.org;
	spf=none smtp.mailfrom=brian DOT inglis AT systematicsw DOT ab DOT ca
X-Authority-Analysis:	v=2.4 cv=Q4RsX66a c=1 sm=1 tr=0 ts=5fee35a3
	a=kiZT5GMN3KAWqtYcXc+/4Q==:117 a=kiZT5GMN3KAWqtYcXc+/4Q==:17
	a=IkcTkHD0fZMA:10 a=94nOnFI1EgyDtX4ev68A:9 a=QEXdDO2ut3YA:10
To:	cygwin AT cygwin DOT com
References:	<CAOTD34Yo1moTfya-AfQKxx+Ei5Yfw4Tt6FaCCfTBHbmba77aYQ AT mail DOT gmail DOT com>
	<079e3e9a-cbb6-6cdb-37f8-1bdf8fe56d79 AT gmail DOT com>
	<CAOTD34Y9ZkNiJJU9JHy1=bH90S4Z9g9nCYHzOHSX4ZbEjbnGkA AT mail DOT gmail DOT com>
	<ea7f78fe-0542-3d37-f7aa-b33eadf46c48 AT gmail DOT com>
From:	Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca>
Organization:	Systematic Software
Subject:	Re: libntl binaries not portable
Message-ID:	<8b0b2b30-505a-df3d-19c5-f9842d0c5209@SystematicSw.ab.ca>
Date:	Thu, 31 Dec 2020 13:33:37 -0700
User-Agent:	Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101
	Thunderbird/78.6.0
MIME-Version:	1.0
In-Reply-To:	<ea7f78fe-0542-3d37-f7aa-b33eadf46c48@gmail.com>
X-CMAE-Envelope:	MS4xfKJApwwZNHldH/0G1L4vP0EuMKmLl7Zi3gHQBOUQv/UTujvbmwWy1mt5xgjXyMI/Bc8Jvd1Y7HJ8F+zY0p8Blv5zvT20uJXHUtWEKDG6eLJulavnI0d2
	VH+wVV3hFK36DC4z7648lykfSnYoVbMxOVkYzITmvMC4eFKmSzEj9E5UPJjwYxnufSLDhtEL4ms+m9zvC4HxWY2LzFGTj5ZMTfs=
X-Spam-Status:	No, score=-7.6 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS,
	KAM_LAZY_DOMAIN_SECURITY, NICE_REPLY_A, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H4,
	RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE,
	TXREP autolearn=ham autolearn_force=no version=3.4.2
X-Spam-Checker-Version:	SpamAssassin 3.4.2 (2018-09-13) on
	server2.sourceware.org
X-BeenThere:	cygwin AT cygwin DOT com
X-Mailman-Version:	2.1.29
List-Id:	General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe:	<https://cygwin.com/mailman/options/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive:	<https://cygwin.com/pipermail/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe:	<https://cygwin.com/mailman/listinfo/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
Reply-To:	cygwin AT cygwin DOT com
Errors-To:	cygwin-bounces AT cygwin DOT com
Sender:	"Cygwin" <cygwin-bounces AT cygwin DOT com>
X-MIME-Autoconverted:	from base64 to 8bit by delorie.com id 0BVKYFWC006012

On 2020-12-31 11:13, Marco Atzeri via Cygwin wrote:
> On 31.12.2020 13:03, E. Madison Bray wrote:
>> On Thu, Dec 31, 2020 at 12:43 PM Marco Atzeri wrote:
>>> On 31.12.2020 12:14, E. Madison Bray via Cygwin wrote:
>>>> I use Cygwin's libntl package in my software, and some users are
>>>> reporting illegal instruction errors which appear to be coming from
>>>> Cygwin's NTL, which was built with native optimizations enabled.

>>> Noted.
>>> I will look to rebuild the package.

>> Awesome, thank you!  And no urgency on my part.  Have a happy new year!

> rebuilt as ntl-10.5.0-2 with
> 
> CXXFLAGS=-mavx NATIVE=off PREFIX=/usr SHARED=on NTL_GMP_LIP=on

Will break on pre-2011 CPUs; Intel Sandy Bridge, AMD Bulldozer first with AVX:
Intel Core i3-9 work, Pentium and Celeron don't; AMD Bobcat and earlier don't.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

This email may be disturbing to some readers as it contains
too much technical detail. Reader discretion is advised.
[Data in binary units and prefixes, physical quantities in SI.]
--
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple

- Raw text -