From: Warren <ve3wwg@gmail.com>
Subject: Re: Autoconf & gnat Help Needed
Date: Mon, 26 Apr 2010 15:01:07 +0000 (UTC)
Date: 2010-04-26T15:01:07+00:00 [thread overview]
Message-ID: <Xns9D66700F591BCWarrensBlatherings@188.40.43.213> (raw)
In-Reply-To: 82fx2lm74h.fsf@stephe-leake.org
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Stephen Leake expounded in news:82fx2lm74h.fsf@stephe-leake.org:
> Warren <ve3wwg@gmail.com> writes:
>
>> Vadim Godunko expounded in news:5867de55-7ca2-4c64-a72f-d2343153eef0
>> @k36g2000yqn.googlegroups.com:
>>
>>> On Apr 23, 5:44 pm, Warren <ve3...@gmail.com> wrote:
>>>>
>>>> For a basic interpreter, making use of ncurses, libgmp, libgsl,
>>>> and PostgreSQL etc., it is unavoidable. :) I tried to avoid C++
>>>> like the plague, but ncurses requires a C++ main, if GNAT exceptions
>>>> are to work correctly. I'm not sure of the details why, but a GNAT
>>>> exception + ncurses and a C or gnat main leads to an abort.
>>>> Switching to a C++ main program has corrected that.
>>>>
>>> Did you try to pass -shared to gnatbind?
>>
>> No, but is that really relevant?
>>
>> The problem was not library linkage, but the fact that
>> if an exception was raised in the Ada modules, the
>> exception handler would not work -- the whole unit
>> would abort.
>
> Lots of things are relevant in exception handling.
>
> First is the exception handling mechanism; set-jump/long-jump vs zero
> cost. GNAT supports both, with zero cost the default; Windows dlls
> require sj/lj.
>
> It may be that using a C++ main also implies the sj/lj mechanism.
Ok, but how is that connected with "-shared"?
Warren
next prev parent reply other threads:[~2010-04-26 15:01 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-21 19:54 Autoconf & gnat Help Needed Warren
2010-04-21 20:31 ` Charmed Snark
2010-04-22 10:23 ` Georg Bauhaus
2010-04-22 15:19 ` Warren
2010-04-22 10:44 ` Stephen Leake
2010-04-22 15:27 ` Warren
2010-04-22 15:59 ` Warren
2010-04-23 6:48 ` Stephen Leake
2010-04-23 13:44 ` Warren
2010-04-23 18:39 ` Vadim Godunko
2010-04-23 20:13 ` Warren
2010-04-24 11:18 ` Stephen Leake
2010-04-26 15:01 ` Warren [this message]
2010-04-27 6:57 ` Alex R. Mosteo
2010-04-27 13:21 ` Warren
2010-04-23 18:41 ` Vadim Godunko
2010-04-23 20:18 ` Warren
2010-04-24 0:11 ` Ludovic Brenta
2010-04-26 15:06 ` Charmed Snark
2010-04-26 18:30 ` Robert A Duff
2010-04-24 12:54 ` Vadim Godunko
2010-04-26 15:25 ` Warren
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