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Subject:	Re: g++ std::map initializing raises segmentation fault.
To:	cygwin AT cygwin DOT com
References:	<20170706 DOT 212622 DOT 2189310858003243560 DOT trueroad AT trueroad DOT jp> <fc380e9c-757d-eeab-86fc-82eaf1550402 AT cornell DOT edu> <685f073b-833f-2663-0c68-3ac372edf0a5 AT cornell DOT edu>
From:	Yaakov Selkowitz <yselkowitz AT cygwin DOT com>
Message-ID:	<0183849e-19e3-f040-56bc-3a7c90216b9c@cygwin.com>
Date:	Fri, 7 Jul 2017 17:32:53 -0500
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On 2017-07-07 15:43, Ken Brown wrote:
> On 7/7/2017 11:12 AM, Ken Brown wrote:
>> On 7/6/2017 8:26 AM, Masamichi Hosoda wrote:
>>> On Cygwin 2.8.1 x86_64, I've found that g++ std:map initializing
>>> may raise segmentation fault.
>>> The binary compiled with cygwin-devel-2.8.0-1
>>> does not raise segmentation fault
>>> even if on Cygwin 2.8.1 x86_64 environments.
>>>
>>> So I suspect cygwin-devel-2.8.1-1 is the cause.
>>>
>>> Here's sample code for reproduce.
>>
>> I've just checked that the problem occurs with the 2017-06-20 snapshot 
>> but not with the 2017-06-06 snapshot.
> 
> I did the bisection:
> 
> 6a6c1c52e6bfea85beb06ea60417b90ae3c6857c is the first bad commit
> commit 6a6c1c52e6bfea85beb06ea60417b90ae3c6857c
> Author: Yaakov Selkowitz <yselkowi AT redhat DOT com>
> Date:   Tue Jun 13 14:58:33 2017 -0500
> 
>      Feature test macros overhaul: Cygwin signal.h
> 
>      This should match newlib's <sys/signal.h>.

Ken, thank you for bisecting this.  I'm testing a fix now.

-- 
Yaakov

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