[vtk-developers] VTK 5-4-0 compatibility

[David Cole]

There are some API changes from VTK 5.2 to 5.4... Although there are not
many, I would still say the current dylib compatibility settings are
correct. The 5.4 dylibs cannot be loaded by a program built against 5.2 and
work flawlessly.

Some VTK 5.4 API changes are explicitly listed here:
http://www.vtk.org/Wiki/VTK_5.4_Release_Planning

And I would guess there are a handful of others that are simply not listed
anywhere, but would take source code analysis to uncover...

The dylib properties are set by the code in VTK's CMakeLists.txt that looks
like this:

# Append the library version information to the library target
# properties.  A parent project may set its own properties and/or may
# block this.
IF(NOT VTK_NO_LIBRARY_VERSION)
  SET(VTK_LIBRARY_PROPERTIES ${VTK_LIBRARY_PROPERTIES}
    VERSION "${VTK_VERSION}"
    SOVERSION "${VTK_MAJOR_VERSION}.${VTK_MINOR_VERSION}"
    )
ENDIF(NOT VTK_NO_LIBRARY_VERSION)

The library VERSION property is the source of the dylib versions...


HTH,
David


On Mon, Apr 27, 2009 at 6:46 PM, Darren Weber
<darren.weber.lists at gmail.com>wrote:

>
> When building dynamic libs for VTK-5-4-0 on OSX, the library compatibility
> options are set as:
>
> -compatibility_version 5.4.0 -current_version 5.4.0
>
> Is that right?  The current wiki page on API changes (
> http://www.vtk.org/Wiki/VTK_FAQ#Changes_to_the_VTK_API) indicates no
> changes from 5.2.x to 5.4.x - that may be true or we need an update to the
> wiki.  If it is true, can we set the dylib compatibility to something like:
>
> -compatibility_version 5.2.1 -current_version 5.4.0
>
> How are these compatibility settings specified on the CMAKE command line?
> I don't see any way to do it there - is it only possible to set them in
> CMakeLists.txt files?  If the latter, where are they set in VTK?
>
> Thanks, Darren
>
>
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