[ITK] [ITK-users] Access to ITK_LIBRARY_DIRS during CMake

[Michael Jackson]

Thanks Matt, I'll use ITK_RUNTIME_LIBRARY_DIRS variable.

-- 
Michael A. Jackson
BlueQuartz Software, LLC
[e]: mike.jackson at bluequartz.net


Matt McCormick wrote:
> Hi Mike,
>
> The ITK_RUNTIME_LIBRARY_DIRS variable was added in ITK 4.9.0 as
> explained here [1] [2]
>
> Hope this helps,
> Matt
>
> [1] https://issues.itk.org/jira/browse/ITK-3026
>
> [2] http://review.source.kitware.com/#/c/20473
>
> On Mon, Sep 19, 2016 at 10:55 AM, Michael Jackson
> <mike.jackson at bluequartz.net>  wrote:
>> we need the directory for the BundleUtilities to be able to find the Itk
>> libraries because the Itk libraries are built with @rpath as the
>> "install_name" instead of an absolute path. I wrote the following cmake
>> code:
>>
>>    # get the ITKCommon library absolute path
>>    STRING(TOUPPER ${CMAKE_BUILD_TYPE} BUILD_TYPE_UPPER)
>>    get_target_property(ITK_COMMON_LIB ITKCommon
>> IMPORTED_LOCATION_${BUILD_TYPE_UPPER})
>>    #message(STATUS "ITK_COMMON_LIB: ${ITK_COMMON_LIB}")
>>    # Now get the absolute PATH to that library. We assume this is the library
>> directory (Which might fail on Windows)
>>    GET_FILENAME_COMPONENT (ITK_LIBRARY_DIRS "${ITK_COMMON_LIB}" PATH)
>>
>>    #message(STATUS "ITK_LIBRARY_DIRS:\n    ${ITK_LIBRARY_DIRS}")
>>
>>    # Now append that path to the SIMPLibSearchDirs property
>>    get_property(SIMPLibSearchDirs GLOBAL PROPERTY SIMPLibSearchDirs)
>>    if(NOT "${SIMPLibSearchDirs}" STREQUAL "")
>>      file(APPEND "${SIMPLibSearchDirs}" "${ITK_LIBRARY_DIRS};")
>>    endif()
>>
>> I think ItkCommon is the lowest level of the Itk libraries so if we can find
>> that we should be OK. If that does not exist then I am assuming Itk is
>> probably not build correctly.
>>
>> --
>> Mike Jackson  [mike.jackson at bluequartz.net]
>>
>>
>>
>> Lowekamp, Bradley (NIH/NLM/LHC) [C] wrote:
>>> Hello,
>>>
>>> I would look at ITKConfig.cmake and ITKTargets.cmake.
>>>
>>> ITK now uses the libraries as “IMPORTED” targets with properties to
>>> specify the full path to the libraries.
>>>
>>> After that there are a variety of “rpath” complication at link and run
>>> time to ensure the correct library is loaded. I have to spend a while
>>> reading the documentation to understand the issues again.
>>>
>>> These are considered the “new” and “better” way of doing things. I would
>>> look into why you need “ITK_LIBRARY_DIRS” for you project, and then see if
>>> there is a newer and better way to now do that with imported targets or
>>> “rpaths”.
>>>
>>> HTH,
>>> Brad
>>>
>>>
>>>
>>>> On Sep 19, 2016, at 10:26 AM, Michael
>>>> Jackson<mike.jackson at bluequartz.net>   wrote:
>>>>
>>>> I have a self built ITK 4.9.1 on OS X 10.10.5 with Xcode 7.2. I am trying
>>>> to get the "ITK_LIBRARY_DIRS" but that variable seems to be empty when I run
>>>> CMake. This is after I do the "FindPackage(ITK...)" cmake code. Is that
>>>> variable supposed to be empty? Is there a better way to get the Library
>>>> directory? I need it for one of my scripts that packages our OS X
>>>> application.
>>>>
>>>> Thanks
>>>>
>>>> --
>>>> Michael A. Jackson
>>>> BlueQuartz Software, LLC
>>>> [e]: mike.jackson at bluequartz.net
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