DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org B03D0386185A
MIME-Version: 1.0
References: <CAOTD34Yo1moTfya-AfQKxx+Ei5Yfw4Tt6FaCCfTBHbmba77aYQ@mail.gmail.com>
 <079e3e9a-cbb6-6cdb-37f8-1bdf8fe56d79@gmail.com>
In-Reply-To: <079e3e9a-cbb6-6cdb-37f8-1bdf8fe56d79@gmail.com>
Date: Thu, 31 Dec 2020 13:03:10 +0100
Message-ID: <CAOTD34Y9ZkNiJJU9JHy1=bH90S4Z9g9nCYHzOHSX4ZbEjbnGkA@mail.gmail.com>
Subject: Re: libntl binaries not portable
To: Marco Atzeri <marco.atzeri@gmail.com>
From: "E. Madison Bray via Cygwin" <cygwin@cygwin.com>
Reply-To: "E. Madison Bray" <erik.m.bray@gmail.com>
Cc: cygwin@cygwin.com
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Sender: "Cygwin" <cygwin-bounces@cygwin.com>

On Thu, Dec 31, 2020 at 12:43 PM Marco Atzeri wrote:
>
> On 31.12.2020 12:14, E. Madison Bray via Cygwin wrote:
> > Hello,
> >
> > (and attn: Marco Atzeri)
> >
> > 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.
> >
> > It should probably be configured with
> >
> > ./configure NATIVE=off
> >
> > while possibly still selecting at least some arch-specific
> > optimizations, such as CXXFLAGS=-mavx.
> >
> > I haven't figured out exactly which features these users' CPUs are
> > missing but I've seen problems in the past with the PCLMUL
> > instructions.
> >
> > Thanks,
> > Madison
>
> Hi Madison
> Noted.
>
> I will look to rebuild the package.
>
> Regards
> Marco

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