[vtk-developers] VTK library version numbers and verdict

[David Cole]

Hey all,

The VTK libraries (with the exception of verdict) all use the following
chunk of code from the main VTK CMakeLists.txt file to specify thier VERSION
and SOVERSION properties:

  # 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 verdict library instead uses this chunk of code from
VTK/Utilities/CMakeLists.txt:

  SET( VERDICT_LIBRARY_PROPERTIES VERSION "vtk${VTK_VERSION}" )


I (think I) understand the "vtk" is intended to distinguish it from when it
is built as a standalone library and not as part of VTK...
But the net effect of this discrepancy is that the install tree contains
many libraries with three files each like this...:
  libvtktiff.so -> libvtktiff.so.5.4
  libvtktiff.so.5.4 -> libvtktiff.so.5.4.0
  libvtktiff.so.5.4.0

...and then the verdict library with only two files that do not follow the
same convention:
  libvtkverdict.so -> libvtkverdict.so.vtk5.4.0
  libvtkverdict.so.vtk5.4.0


So here's the question:
Isn't the name "libvtkverdict" sufficient to distinguish the library from
its standalone non-VTK library...? Can I make libvtkverdict consistent with
the other VTK libraries by changing the code to this: ??

  SET( VERDICT_LIBRARY_PROPERTIES
    VERSION "${VTK_VERSION}"
    SOVERSION "${VTK_MAJOR_VERSION}.${VTK_MINOR_VERSION}"
    )

Or is there some other reason that I am missing that it needs to be the way
it is?


Thanks for any insight / feedback......

David Cole
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