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Date:	Fri, 21 Jun 2013 11:43:44 +0200
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Broken MPIR 2.6.0 on Cygwin64
Message-ID:	<20130621094344.GB25850@calimero.vinschen.de>
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References:	<CAHhGz88vEgzz1i4sUjE0ugNzaf+j++r1_qT=Y6abMaB4_F=PCg AT mail DOT gmail DOT com> <20130621083039 DOT GH1620 AT calimero DOT vinschen DOT de> <kq1694$ung$1 AT ger DOT gmane DOT org>
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On Jun 21 09:27, Jean-Pierre Flori wrote:
> Hey,
> 
> Thanks for the quick reply.
> 
> Le Fri, 21 Jun 2013 10:30:39 +0200, Corinna Vinschen a écrit :
> 
> >> /bin/sh ../libtool --tag=CC    --mode=link gcc -std=gnu99  -m64 -O2
> >> -march=corei7-avx -mtune=corei7-avx    -o t-bswap.exe t-bswap.o
> > 
> > Uhm, are you sure this arch and tune options aren't the problem here?
> 
> This is automatically determined by the configure script, I get the same 
> for GMP, it actually corresponds to my CPU, and works fine on Linux.
> Anyway, I've also tried with only "-m64 -O0 -g" and got similar results.
> 
> > 
> > Is building the binutils package yourself and without optimization, but
> > with all debug symbols available an option for you?  This should help to
> > track down the problem.
> > 
> It's an option.
> I'll try to do that today.

The easiest way to do that is to fetch the binutils-2.23.52-5 source
package from a Cygwin mirror and to use cygport for building.  Just
tweak the cygport file to set MAKEOPTS to 'CFLAGS=-g'.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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