[ITK] [ITK-dev] Installed External Module list

[Matt McCormick]

It does not look like that feature is implemented.  Here is an issue to track:

  https://issues.itk.org/jira/browse/ITK-3498

Thanks,
Matt

On Tue, Nov 15, 2016 at 2:42 PM, Lowekamp, Bradley (NIH/NLM/LHC) [C]
<blowekamp at mail.nih.gov> wrote:
> OK,
>
> Here is my test code:
>
> set(op_mod "ITKReview")
> find_package(ITK REQUIRED OPTIONAL_COMPONENTS ${op_mod})
> message("ITK_${op_mod}_FOUND: ${ITK_${op_mod}_FOUND}”)
>
> I’m running CMake 3.6.2. According to this documentation [1], I expect the above variable to be set if the component is available or not. Here the output:
>
> ITK_ITKReview_FOUND:
>
> So it appears these per-component variables are not being set. I thought I’d first test this with an internal module before checking an installed external.
>
> How do I optionally use ITK components? How do I know what components are available in an installed ITK?
>
> Thanks,
> Brad
>
>
>
> [1] https://cmake.org/cmake/help/v3.0/manual/cmake-developer.7.html#module-documentation
>
>
>> On Nov 15, 2016, at 2:07 PM, Lowekamp, Bradley (NIH/NLM/LHC) [C] <blowekamp at mail.nih.gov> wrote:
>>
>> Matt,
>>
>> Yes, that is the documented usage. I do that for the subdirectories where I am about to use the components [3,4]
>>
>> But at the top-level, I am trying to ask what components are installed [1,2] so I know what options to turn on and how to control some aspects for the build process. How do I get a list of modules available?
>>
>> I am now testing with find_package’s “OPTIONAL_COMPONENTS” to see what happens.
>>
>> Thanks,
>> Brad
>>
>> [1] https://github.com/SimpleITK/SimpleITK/blob/master/CMakeLists.txt#L61-L83
>> [2] https://github.com/SimpleITK/SimpleITK/blob/master/CMake/sitkCheckForITKModuleDependencies.cmake
>> [3] https://github.com/SimpleITK/SimpleITK/blob/master/Code/IO/src/CMakeLists.txt#L14-L20
>> [4] https://github.com/SimpleITK/SimpleITK/blob/master/Code/Common/src/CMakeLists.txt#L32-L34
>>
>>> On Nov 15, 2016, at 1:40 PM, Matt McCormick <matt.mccormick at kitware.com> wrote:
>>>
>>> Hi,
>>>
>>> To require an external module, add it to the COMPONENTS argument of
>>> find_package(ITK). For example,
>>>
>>> find_package(ITK REQUIRED COMPONENTS AnExternalModule)
>>>
>>> HTH,
>>> Matt
>>>
>>> On Tue, Nov 15, 2016 at 10:30 AM, Lowekamp, Bradley (NIH/NLM/LHC) [C]
>>> <blowekamp at mail.nih.gov> wrote:
>>>> Hi!
>>>>
>>>> I am working on the SimpleITK Superbuid. I have install ITK to a directory, then I build an external ITK module, and install that too. All the headers are happily there and works just fine!
>>>>
>>>> However, I would like to verify that the ITK install has the additional external ITK module. I expected it to be listed in ITK_MODULES_ENABLED, but it’s not. How can I detect if an external ITK module is installed?
>>>>
>>>> Do we need to update the install behavior to support this?
>>>>
>>>> Thanks,
>>>> Brad
>>>>
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