Re: [Gtk2hs-users] GTK: use from ghci

[Alexander M. <has...@gm...>]

Hi Axel,

Yes, I think I have reproduced on linux x86-64, P4, debian sid:

http://hackage.haskell.org/trac/gtk2hs/ticket/1183.

With the hackage version of gtk there was a variable time delay between the
window being drawn (I could resize and move, also) and the segfault crash
(as described in the bug ticket).

After installing from darcs (darcs get --lazy), the crash now occurs
immediately (which I think might be a different bug).

The attached file is a patch against Graphics/UI/Gtk/General/hsgthread.c to
use pthreads as documented on the ticket.  However, the immediate crash
still occurs.

Now I know this is a bug, I shall attempt to investigate further.  Any
helpful hints would be appreciated.  Is there a toplevel option to define
-DDEBUG?

Cheers,

Vivian

On 16 July 2010 18:57, Axel Simon <Axe...@in...> wrote:

> Hi Vivian,
>
>
> On 16.07.2010, at 01:40, Alexander McPhail wrote:
>
>  Dear gtk2hs-users,
>>
>> Is there any fundamental reason why Gtk can not be used from ghci?  I get
>> crashes when (i) running from ghci, (ii) using forkIO to wrap Gtk code, and
>> (iii) using forkOS to wrap Gtk code.
>>
>>
> The gtk package does work in ghci. There is a weird bug we haven't
> understood that I suspect is a problem in ghci. It only occurs on x86-64
> platforms. I've only reproduced this on Linux, it might also happen on
> 64-bit Windows and Mac OS 10.6.
>
> I suspect you hit this bug:
>
>  http://hackage.haskell.org/trac/gtk2hs/ticket/1183
>>
>
>
> Is that it?
>
> Cheers,
> Axel
>
>  Thanks,
>>
>> Vivian
>>
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>> yolar et elver.
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