[Insight-developers] Converting ITK's ImageIO libraries to shared

[Matt McCormick]

Hi Brad,

Duplicate exports may be an issue.  See, e.g.,

  https://issues.itk.org/jira/browse/ITK-2796

Matt

On Mon, Jun 3, 2013 at 2:54 PM, Bradley Lowekamp <blowekamp at mail.nih.gov> wrote:
> Matt,
>
> What would be the issue with that?
>
> Brad
>
> On Jun 3, 2013, at 10:44 AM, Matt McCormick <matt.mccormick at kitware.com> wrote:
>
>> Hi Brad,
>>
>> I think many of the third party libraries that the ImageIO modules
>> depend on are not set up for shared libraries on Windows.
>>
>> Thanks,
>> Matt
>>
>> On Mon, Jun 3, 2013 at 2:26 PM, Bradley Lowekamp <blowekamp at mail.nih.gov> wrote:
>>> Hello,
>>>
>>> What are the possible problem what we will encounter if we convert ITK's ImageIO modules to be shared libraries on Windows? And manage the gcc exported symbols why we are at it?
>>>
>>> Performing the factory registration of ImageIO factory objects during static initialization in static libraries is fill with problems and tricky behaviors and is problematic for large applications to manage. By making these libraries shared the ImageIO factory objects should be unique and consistent across different libraries which use ITK, so that they will not get registered multiple times. Additionally, by explicitly specifying the exported symbols on gcc this should help to reduce the library size.
>>>
>>> Thanks for you thoughts,
>>> Brad
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>