[Insight-developers] multiple shared ITK libraries on windows

[Gaëtan Lehmann]

Bill,

The question was more for Bill Hoffman :-)

Gaëtan


Le 21 mars 11 à 17:44, Bill Lorensen a écrit :

> I have done nothing with wrapping and shared libs. I really don't  
> know if you will have issues.
>
> I hope that I am close with the shared lib issue for the ITK proper.  
> Once that is merged, we can look at the wrapping issues.
>
> Bill
>
> 2011/3/21 Gaëtan Lehmann <gaetan.lehmann at jouy.inra.fr>
>
> Bill,
>
> The wrapping is currently creating ~20 shared libraries, and will  
> create a shared lib per module.
> Do you think we can have this kind of problem with vnl and wrapping  
> on windows? Have you done something special in CSwig wrapping to  
> avoid that problem?
> I'm afraid all the code generated by the wrapping won't fit in a  
> single library on windows, so this may not be an option.
>
> Regards,
>
> Gaëtan
>
>
>
>
> Le 17 mars 11 à 14:22, Gaëtan Lehmann a écrit :
>
>
>
> Will we have the vnl problem with wrapping?
> With wrapping, there will be as much libs as there are modules.
>
>
> Le 17 mars 11 à 01:27, Bill Hoffman a écrit :
>
> On Wed, Mar 16, 2011 at 6:24 PM, Bill Lorensen <bill.lorensen at gmail.com 
> > wrote:
> Here's a question.
>
> In old ITK, there were 15 shared libraries. Because of vnl
> limitations, Bill Hoffman says there should only be 8 (my calculation
> and ITKCommon is the only one that is core ITK). With ITK modular
> there are potentially 45 (my calculation, not counting tests) shared
> libs. Supporting shared libs on windows platforms requires special
> magic.
>
> Should we build any shared libs in ITK modular on windows platforms?
> Is the maintenance burden too high?
>
>
> Prior to change 419, there was only one shared library ITKCommon in
> ITK on windows. Since that change was in ITKv4, I would hardly call it
> old ITK (maybe 4 month old itk...)....  :)
>
> Anyway, without figuring out how to make vnl shared, I don't think
> that we can safely have more than one dll in ITK.  Dll's are an all or
> nothing type of thing. I think I remember why this was done in the
> first place. The main driving force for the original ITKCommon being
> shared was so that plugins could be done for VolView.  With all static
> ITK, the trouble was that each plugin got its own copy of the modified
> time class static from ITKObject.  This of course totally broke the
> pipeline.  So, I think that we should have one ITK dll as we did in
> the past, and it should be the one that contains the static for
> modified time.  That way plugin type applications can still be created
> against ITK.  I will also investigate making vnl shared, but that
> maybe too hard...
>
> -Bill
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> -- 
> Gaëtan Lehmann
> Biologie du Développement et de la Reproduction
> INRA de Jouy-en-Josas (France)
> tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
> http://voxel.jouy.inra.fr  http://www.itk.org
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> _______________________________________________
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> Visit other Kitware open-source projects at
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> -- 
> Gaëtan Lehmann
> Biologie du Développement et de la Reproduction
> INRA de Jouy-en-Josas (France)
> tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
> http://voxel.jouy.inra.fr  http://www.itk.org
> http://www.mandriva.org  http://www.bepo.fr
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
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>
> Kitware offers ITK Training Courses, for more information visit:
> http://kitware.com/products/protraining.html
>
> Please keep messages on-topic and check the ITK FAQ at:
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>

-- 
Gaëtan Lehmann
Biologie du Développement et de la Reproduction
INRA de Jouy-en-Josas (France)
tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
http://voxel.jouy.inra.fr  http://www.itk.org
http://www.mandriva.org  http://www.bepo.fr

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