[Insight-users] [Insight-developers] CMake config problem: ITK + GDCM 2 + VTK

Stephen Aylward stephen.aylward at kitware.com
Sat Jul 17 18:31:53 EDT 2010 

Hi,

I am far from a cmake expert, but it seems like those lines don't
belong in the UseGDCM.cmake file.   They should be in the
CMakeLists.txt file that is used to compile the library.  A
UsePACKAGE.cmake file normally only sets the INCLUDE_DIRECTORIES and
the LINK_DIRECTORIES for that specific package.

I'm basing my conclusion on looking at the UseCTK.cmake and
UseVTK.cmake files.  They never issue FIND commands from within them,
they do not output paths to Qt or other libraries that they may have
used, and they seem to only export the above listed directory
variable...although UseITK.cmake does also export some additional
variables if a system gdcm or a system vxl is used - but only specific
vars are exported in those cases, and I'm not certain why those
exports are needed.

Karthik/Luis/others - do you agree, or am I mistaken/wrong/full-of-%@$#! :)

Thanks,
s

On Sat, Jul 17, 2010 at 5:17 PM, Mathieu Malaterre
<mathieu.malaterre at gmail.com> wrote:
> Hi Stephen,
>
>  Here is how the cmake/gdcm config/use file is setup:
>
>
> $ cat /usr/lib/gdcm-2.0/UseGDCM.cmake
> ...
>  # Use VTK.
>  IF(GDCM_USE_VTK)
>    SET(VTK_DIR ${GDCM_VTK_DIR})
>    FIND_PACKAGE(VTK)
>    IF(VTK_FOUND)
>      INCLUDE(${VTK_USE_FILE})
>    ELSE(VTK_FOUND)
>      MESSAGE("VTK not found in GDCM_VTK_DIR=\"${GDCM_VTK_DIR}\".")
>    ENDIF(VTK_FOUND)
>  ENDIF(GDCM_USE_VTK)
> ...
>
>  This setting is required since vtkgdcm class derives from vtk
> classes. This means compilation would fails if the VTK header would
> not be found. Therefore I believe this is a requirement for vtkgdcm
> module to pull in vtk cmake setting.
>
>  Could you please recommend another way for doing this ?
>
> Thanks for your comments !
> -Mathieu
>
> On Sat, Jul 17, 2010 at 7:16 PM, Stephen Aylward
> <stephen.aylward at kitware.com> wrote:
>> Yeah - that's probably it.
>>
>> I could add a AND NOT GDCM_USE_VTK to the VTK_VERSION test in the
>> MetaIO CMakeLists.txt file..ugly ugly ugly.
>>
>> I'd rather GDCM didn't export VTK's variables, but I guess it is
>> necessary if the libraries it exports now depend on VTK.  However, if
>> GDCM_USE_VTK only creates apps within GDCM 2 that depend on VTK, and
>> its libraries never depend on VTK, then GDCM should be fixed.
>>
>> Other ideas?
>>
>> s
>>
>> On Sat, Jul 17, 2010 at 12:26 PM, Karthik Krishnan
>> <karthik.krishnan at kitware.com> wrote:
>>> I think the more likely place VTK-VERSION may be getting pulled in is
>>> that GDCM has been built with the flag GDCM-USE-VTK set to ON. Dean
>>> Inglis who initially reported the error on the attached link did have
>>> this flag on.
>>>
>>> On 7/17/10, Stephen Aylward <stephen.aylward at kitware.com> wrote:
>>>> The problem is that VTK_VERSION is being set somewhere that it shouldn't
>>>>
>>>> Bill H thinks VTK_VERSION might be set in GDCM.   Check the Cache/Use
>>>> file on your local install.
>>>>
>>>> I checked the following in ITK:
>>>>
>>>> $ grep -R VTK_VERSION *
>>>> Utilities/MetaIO/CMakeLists.txt:IF(VTK_VERSION)
>>>> Utilities/MetaIO/CMakeLists.txt:ELSE(VTK_VERSION)
>>>> Utilities/MetaIO/CMakeLists.txt:ENDIF(VTK_VERSION)
>>>> Wrapping/WrapITK/ExternalProjects/ItkVtkGlue/Wrapping/CMakeLists.txt:
>>>> SET(VTK_VERSION
>>>> "${VTK_MAJOR_VERSION}.${VTK_MINOR_VERSION}.${VTK_BUILD_VERSION}")
>>>> Wrapping/WrapITK/ExternalProjects/ItkVtkGlue/Wrapping/CMakeLists.txt:
>>>> IF("${VTK_VERSION}" STRLESS "${MIN_ITK_VER}")
>>>> Wrapping/WrapITK/ExternalProjects/ItkVtkGlue/Wrapping/CMakeLists.txt:
>>>> ELSE("${VTK_VERSION}" STRLESS "${MIN_ITK_VER}")
>>>> Wrapping/WrapITK/ExternalProjects/ItkVtkGlue/Wrapping/CMakeLists.txt:
>>>> ENDIF("${VTK_VERSION}" STRLESS "${MIN_ITK_VER}")
>>>>
>>>> So, if WrapITK is being used, then a temp var called VTK_VERSION is
>>>> being created...which is kind of a "reserved" CMake variable and could
>>>> cause the error.  Is wrapping enabled?
>>>>
>>>> s
>>>>
>>>> On Sat, Jul 17, 2010 at 10:35 AM, Bill Lorensen <bill.lorensen at gmail.com>
>>>> wrote:
>>>>> Hmmm... that happened to me too.
>>>>>
>>>>> Why haven't we fixed this?
>>>>>
>>>>> Bill
>>>>>
>>>>> On Sat, Jul 17, 2010 at 8:47 AM, Karthik Krishnan
>>>>> <karthik.krishnan at kitware.com> wrote:
>>>>>> Known issue.. See this
>>>>>>
>>>>>>   http://www.itk.org/pipermail/insight-users/2010-June/037360.html
>>>>>>
>>>>>> and
>>>>>>
>>>>>>   http://www.itk.org/pipermail/insight-users/2010-July/037404.html
>>>>>>
>>>>>> I think the consensus is to downgrade to CMake 2.6 from Cmake 2.8
>>>>>>
>>>>>>
>>>>>> On Sat, Jul 17, 2010 at 3:25 PM, Roger Bramon Feixas
>>>>>> <rogerbramon at gmail.com>
>>>>>> wrote:
>>>>>>>
>>>>>>> Hi,
>>>>>>> I have the same problem reported in this
>>>>>>> thread: http://www.itk.org/pipermail/insight-users/2010-March/035903.html,
>>>>>>> but any solution was published. I would like to continue the discussion.
>>>>>>> I'm trying to compile ITK 3.18 with GDCM 2.0.15. I compiled correctly
>>>>>>> GDCM
>>>>>>> 2.0.15 with VTK 5.6 but when I set to 1 the ITK_USE_SYSTEM_GDCM option
>>>>>>> this
>>>>>>> CMake message error appears:
>>>>>>> CMake Error at Utilities/MetaIO/CMakeLists.txt:104 (INSTALL):
>>>>>>>   install TARGETS given no LIBRARY DESTINATION for shared library target
>>>>>>>   "vtkmetaio".
>>>>>>>
>>>>>>> In the mentioned thread, Brad King proposed a test:
>>>>>>> "
>>>>>>> Edit ITK/Utilities/MetaIO/CMakeLists.txt to add some message()-s
>>>>>>> in this top block:
>>>>>>> IF(VTK_VERSION)
>>>>>>>   SET(METAIO_FOR_VTK 1)
>>>>>>>   MARK_AS_ADVANCED( METAIO_FOR_VTK )
>>>>>>>   SET(METAIO_NAMESPACE "vtkmetaio")
>>>>>>>   MESSAGE(FATAL_ERRORO "ITK IS NOT VTK!")  # ADD THIS LINE
>>>>>>> ELSE(VTK_VERSION)
>>>>>>> ...
>>>>>>> ENDIF(VTK_VERSION)
>>>>>>> Does CMake hit this?  Are you pointing ITK at a VTK? "
>>>>>>> I tested it, and yes, CMake hits this.
>>>>>>> Anyone have any suggestion?
>>>>>>> Thanks,
>>>>>>> Roger
>>>>>>> _____________________________________
>>>>>>> Powered by www.kitware.com
>>>>>>>
>>>>>>> Visit other Kitware open-source projects at
>>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>>
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>>>>>>> http://www.kitware.com/products/protraining.html
>>>>>>>
>>>>>>> Please keep messages on-topic and check the ITK FAQ at:
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>>>>>>>
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>>>>>>>
>>>>>>
>>>>>>
>>>>>> _____________________________________
>>>>>> Powered by www.kitware.com
>>>>>>
>>>>>> Visit other Kitware open-source projects at
>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>
>>>>>> Kitware offers ITK Training Courses, for more information visit:
>>>>>> http://www.kitware.com/products/protraining.html
>>>>>>
>>>>>> Please keep messages on-topic and check the ITK FAQ at:
>>>>>> http://www.itk.org/Wiki/ITK_FAQ
>>>>>>
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>>>>>>
>>>>>>
>>>>> _______________________________________________
>>>>> Powered by www.kitware.com
>>>>>
>>>>> Visit other Kitware open-source projects at
>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>
>>>>> 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:
>>>>> http://www.itk.org/Wiki/ITK_FAQ
>>>>>
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>>>>> http://www.itk.org/mailman/listinfo/insight-developers
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> ==============================
>>>> Stephen R. Aylward, Ph.D.
>>>> Director of Medical Imaging Research
>>>> Kitware, Inc. - North Carolina Office
>>>> http://www.kitware.com
>>>> stephen.aylward (Skype)
>>>> (919) 969-6990 x300
>>>>
>>>
>>
>>
>>
>> --
>>
>> ==============================
>> Stephen R. Aylward, Ph.D.
>> Director of Medical Imaging Research
>> Kitware, Inc. - North Carolina Office
>> http://www.kitware.com
>> stephen.aylward (Skype)
>> (919) 969-6990 x300
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> 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:
>> http://www.itk.org/Wiki/ITK_FAQ
>>
>> Follow this link to subscribe/unsubscribe:
>> http://www.itk.org/mailman/listinfo/insight-developers
>>
>
>
>
> --
> Mathieu
>



-- 

==============================
Stephen R. Aylward, Ph.D.
Director of Medical Imaging Research
Kitware, Inc. - North Carolina Office
http://www.kitware.com
stephen.aylward (Skype)
(919) 969-6990 x300

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