[vtkusers] find_package( ITK ) overrides ${VTK_LIBRARIES} from find_package( VTK )

[Bill Lorensen]

There is a python script in:
Utilities/Maintenance/WhatModulesVTK.py that gives a good first cut at
the modules that your app uses.


On Tue, Dec 2, 2014 at 5:02 PM, Pablo Hernández
<pablo.hernandez.cerdan at outlook.com> wrote:
> Thanks a lot, I have tested Bill suggestion and it worked:
>> Or, reset the vtk modules that itk sets using:
>> set(VTK_MODULES_REQUESTED "")
>> before
>> find_package(VTK REQUIRED)
>
> And thanks for pointing out that linking all the libraries is not good, but
> I've some problems knowing what module corresponds to my #include<vtk**>
> header.  Is there any wiki page to discover that or any map linking
> module-library?
>
> Thanks all for the solutions,
> Pablo
>
>> Date: Tue, 2 Dec 2014 11:34:20 -0500
>> Subject: Re: [vtkusers] find_package( ITK ) overrides ${VTK_LIBRARIES}
>> from find_package( VTK )
>> From: cory.quammen at kitware.com
>> To: bill.lorensen at gmail.com
>> CC: david.gobbi at gmail.com; vtkusers at vtk.org;
>> pablo.hernandez.cerdan at outlook.com
>
>>
>> Pablo,
>>
>> I was just looking into this myself after encountering the same behavior.
>>
>> If you want to include the VTK libraries needed for ITK and specify an
>> additional set of VTK modules in your project, I suggest the
>> following:
>>
>> find_package(ITK REQUIRED)
>> include(${ITK_USE_FILE})
>>
>> set(VTK_MODULES_REQUESTED ${VTK_MODULES_REQUESTED} [additional VTK
>> modules])
>> find_package(VTK REQUIRED)
>> include(${VTK_USE_FILE})
>>
>> This should work. VTK_LIBRARIES should be set to only the VTK
>> libraries needed for the modules requested by ITK and by you, plus
>> their dependencies. Let us know if it doesn't.
>>
>> Thanks,
>> Cory
>>
>>
>> On Tue, Dec 2, 2014 at 8:36 AM, Bill Lorensen <bill.lorensen at gmail.com>
>> wrote:
>> > As David said you can explicitly list the modules that your app uses.
>> >
>> > Or, reset the vtk modules that itk sets using:
>> > set(VTK_MODULES_REQUESTED "")
>> > before
>> > find_package(VTK REQUIRED)
>> >
>> > On Tue, Dec 2, 2014 at 12:39 AM, David Gobbi <david.gobbi at gmail.com>
>> > wrote:
>> >> Hi Pablo,
>> >>
>> >> It's best to only link to the VTK libraries that you need, rather than
>> >> trying to
>> >> link to them all via ${VTK_LIBRARIES}.
>> >>
>> >> The reason for the short list is probably that when ITK calls
>> >> find_package(),
>> >> it only requests the small set of VTK components that ITK uses:
>> >> http://www.cmake.org/cmake/help/v2.8.9/cmake.html#command:find_package
>> >>
>> >> - David
>> >>
>> >>
>> >> On Mon, Dec 1, 2014 at 10:26 PM, Pablo Hernández
>> >> <pablo.hernandez.cerdan at outlook.com> wrote:
>> >>>
>> >>> I have a running/compiling CMakeLists.txt when using VTK only, this is
>> >>> the related VTK part:
>> >>> find_package(VTK 6.2 REQUIRED)
>> >>> message (status "** VTK FOUND: USE_FILES ${VTK_USE_FILE}")
>> >>> message (status "** VTK FOUND: VTK_LIBRARIES ${VTK_LIBRARIES}")
>> >>>
>> >>> include(${VTK_USE_FILE})
>> >>> include_directories( ${VTK_INCLUDE_DIRS})
>> >>> include_directories(${CMAKE_CURRENT_SOURCE_DIR})
>> >>>
>> >>> add_executable(VTKNodesEdgesEXE main.cpp ${source_files}
>> >>> ${QT_UI_HEADERS}
>> >>> ${QT_RESOURCES})
>> >>> target_link_libraries(VTKNodesEdgesEXE ${VTK_LIBRARIES})
>> >>> target_link_libraries(VTKNodesEdgesEXE Qt5::Widgets Qt5::PrintSupport)
>> >>>
>> >>>
>> >>> The problem is that if I add find_package(ITK) anywhere,
>> >>> ${VTK_LIBRARIES}
>> >>> gets overrides by a tiny list selected by ITK.
>> >>
>> >>
>> >
>> >
>> >
>> > --
>> > Unpaid intern in BillsBasement at noware dot com
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