From: Brian Inglis <Brian.Inglis@SystematicSw.ab.ca>
To: cygwin@cygwin.com
Subject: Re: headache on build repeatibility: octave vs BLODA ?
Date: Thu, 30 Jan 2020 21:05:00 -0000 [thread overview]
Message-ID: <3ec4538b-3e45-43cc-b96e-a3b8be17bdb9@SystematicSw.ab.ca> (raw)
In-Reply-To: <20200129224653.b3238736661d3c95fc30ee5f@nifty.ne.jp>
On 2020-01-29 06:46, Takashi Yano wrote:
> Hi Marco,
>
> On Wed, 29 Jan 2020 13:19:11 +0100
> Marco Atzeri wrote:
>> As Octave uses gnulib, it is possible that the changes in MS are causing
>> a different subset of gnulib to be used than before, may be exposing
>> a latent bug or race.
>>
>> Unfortunately my old build tree was polluted by mistake, so I can
>> not directly compare a good build tree versus a failing one.
>
> I found suspicious difference between the working build and the
> not-working build.
>
> The not-working build has fflush.o, fseek.o and fseeko.o in
> build/libgnu/.libs
> directory, while the working build does not.
>
> Also, cygoctave-7.dll of not-working build exports rpl_fflush,
> rpl_fseek and rpl_fseeko, while that of the working build does
> not.
>
> As a test, I used following patch to forcibly remove the code
> setting REPLACE_FSEEKO to 1 in configure script, and rebuilt
> octave. This works without segmentation fault.
For these to be considered missing or deficient such that they should be
provided or replaced gnulib must consider Cygwin lacking support for ANSI C
fflush https://www.gnu.org/software/gnulib/MODULES.html#ansic_enh_stdio
and POSIX 2008 fseek and fseeko supporting pipes and 4GB in 32 bit mode
https://www.gnu.org/software/gnulib/MODULES.html#posix_sup
perhaps as a result of incorrect conclusions about Cygwin in autoreconf?
--
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
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next prev parent reply other threads:[~2020-01-30 21:05 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-25 16:55 Marco Atzeri
2020-01-25 18:15 ` Brian Inglis
2020-01-27 6:54 ` Marco Atzeri
2020-01-25 20:36 ` Achim Gratz
2020-01-26 6:58 ` Marco Atzeri
2020-01-26 8:05 ` ASSI
2020-01-26 8:38 ` Marco Atzeri
2020-01-27 6:45 ` Marco Atzeri
2020-01-27 11:33 ` Takashi Yano
2020-01-28 6:41 ` Marco Atzeri
2020-01-28 14:55 ` Takashi Yano
2020-01-29 9:44 ` Corinna Vinschen
2020-01-29 12:19 ` Marco Atzeri
2020-01-29 13:46 ` Takashi Yano
2020-01-29 15:11 ` Takashi Yano
2020-01-29 15:32 ` Corinna Vinschen
2020-01-29 15:34 ` Corinna Vinschen
2020-01-29 16:08 ` Takashi Yano
2020-01-29 17:57 ` Corinna Vinschen
2020-01-30 21:05 ` Brian Inglis [this message]
2020-01-30 21:34 ` Marco Atzeri
2020-01-28 17:26 ` ASSI
2020-01-28 20:04 ` Marco Atzeri
2020-01-28 20:21 ` Achim Gratz
2020-01-26 2:42 ` Takashi Yano
2020-01-26 5:11 ` Takashi Yano
2020-01-26 10:24 ` Marco Atzeri
2020-01-26 10:31 ` Takashi Yano
2020-01-29 0:03 ` Hans-Bernhard Bröker
2020-01-29 0:39 ` Hans-Bernhard Bröker
2020-01-29 5:10 ` Marco Atzeri
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