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From:	Florian Friesdorf <flo AT chaoflow DOT net>
To:	Marco Atzeri <marco DOT atzeri AT gmail DOT com>, cygwin AT cygwin DOT com, marko AT miding DOT de
Subject:	Re: BUG: gcc segfaults compiling python extensions
In-Reply-To:	<87lho0858l.fsf@eve.fritz.box>
References:	<87oasw89eg DOT fsf AT eve DOT fritz DOT box> <544FCE0C DOT 2030904 AT gmail DOT com> <87lho0858l DOT fsf AT eve DOT fritz DOT box>
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Date:	Wed, 29 Oct 2014 12:03:16 +0100
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On Tue, Oct 28 2014, Florian Friesdorf wrote:
> On Tue, Oct 28 2014, Marco Atzeri wrote:
>> On 10/28/2014 5:08 PM, Florian Friesdorf wrote:
>>>
>>> Steps to reproduce:
>>>
>>> - 64bit Windows Server 2012 R2
>>>
>>> - cygwin 32bit 1.7.32 (also with 1.7.33 test release)
>>>
>>> - download, unpack, cd
>>>    https://ftp.dlitz.net/pub/dlitz/crypto/pycrypto/pycrypto-2.6.1.tar.gz
>>>
>>> - python setup.py build
>>> ...
>>> building 'Crypto.Hash._MD2' extension
>>> creating build/temp.cygwin-1.7.33-i686-2.7
>>> creating build/temp.cygwin-1.7.33-i686-2.7/src
>>> gcc -fno-strict-aliasing -ggdb -pipe -Wimplicit-function-declaration -f=
debug-prefix-map=3D/usr/src/ports/python/python-2.7.8-1.i686/build=3D/usr/s=
rc/debug/python-2.7.8-1 -fdebug-prefix-map=3D/usr/src/ports/python/python-2=
.7.8-1.i686/src/Python-2.7.8=3D/usr/src/debug/python-2.7.8-1 -fwrapv -Wall =
-Wstrict-prototypes -std=3Dc99 -O3 -fomit-frame-pointer -Isrc/ -I/usr/inclu=
de/python2.7 -c src/MD2.c -o build/temp.cygwin-1.7.33-i686-2.7/src/MD2.o
>>> gcc -shared -Wl,--enable-auto-image-base -L. build/temp.cygwin-1.7.33-i=
686-2.7/src/MD2.o -L/usr/lib/python2.7/config -L/usr/lib -lpython2.7 -o bui=
ld/lib.cygwin-1.7.33-i686-2.7/Crypto/Hash/_MD2.dll
>>> error: command 'gcc' terminated by signal 11
>>>
>>> - rererun: python setup.py build
>>
>> build find on W7-64 with cygwin32 bit
>> CYGWIN_NT-6.1-WOW64 1.7.32(0.274/5/3) 2014-08-13 23:03
>
> With Win7-64 cygwin32 and cygwin64 we do not see the error - the builds
> work fine there.
>
> We see the error on CYGWIN_NT-6.3-WOW64, Windows 2012 Server R2 64bit
> with 32bit cygwin.
>
>> BLODA ?
>>
>> https://cygwin.com/acronyms/#BLODA
>
> No Software from that list is installed. It's a fresh installation of
> Windows 2012 Server R2. We had only added Firefox, when we got the error
> the first time. Currently installed are:
>
> 7-zip
> Akamai Netsession Interface
> Mozilla Firefox 33.0
> Mozilla Maintenance Service
> Notepad++
> Oracle VM Virtualbox 4.3.18
>
> Rebaseall also does not fix the problem.

Starting cygwin with:
set CYGWIN=3Ddetect_bloda
bash --login -i

$ echo $CYGWIN
detect_bloda

Comilation aborts the same way as pasted above. There are no cygwin
warnings/errors, at least not printed to the shell. Should I look
somewhere else for bloda warnings? The documentation does not state what
cygwin will do if it detects bloda candidates.

https://cygwin.com/cygwin-ug-net/using-cygwinenv.html#cygwinenv-implemented=
-options

--=20
Florian Friesdorf <flo AT chaoflow DOT net>
  GPG FPR: 7A13 5EEE 1421 9FC2 108D  BAAF 38F8 99A3 0C45 F083
Jabber/XMPP: flo AT chaoflow DOT net
IRC: chaoflow on freenode,ircnet,blafasel,OFTC

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