Could not fine load file ITKModuleExternal

[TheChymera]

As per the instructions provided here, I am trying to build this package after installing ITK.

With the following cmake command:

cmake -C /var/tmp/portage/sci-libs/itk-generic_label_interpolator-5.0.1/work/itk-generic_label_interpolator-5.0.1_build/gentoo_common_config.cmake
    -G Unix Makefiles -DCMAKE_INSTALL_PREFIX=/usr -DITK_DIR=/usr/include/ITK-5.0/ -DCMAKE_BUILD_TYPE=Gentoo
    -DCMAKE_TOOLCHAIN_FILE=/var/tmp/portage/sci-libs/itk-generic_label_interpolator-5.0.1/work/itk-generic_label_interpolator-5.0.1_build/gentoo_toolchain.cmake
    /var/tmp/portage/sci-libs/itk-generic_label_interpolator-5.0.1/work/ITKGenericLabelInterpolator-187ab99b7d42718c99e5017f0acd3900d7469bd1

and with ITK providing the following files, I get the following build error:

>>> Emerging (1 of 1) sci-libs/itk-generic_label_interpolator-5.0.1::chymeric
 * ITKGenericLabelInterpolator-187ab99b7d42718c99e5017f0acd3900d7469bd1.zip SHA256 SHA512 WHIRLPOOL size ;-) ...              [ ok ]
>>> Unpacking source...
>>> Unpacking ITKGenericLabelInterpolator-187ab99b7d42718c99e5017f0acd3900d7469bd1.zip to /var/tmp/portage/sci-libs/itk-generic_label_interpolator-5.0.1/work
>>> Source unpacked in /var/tmp/portage/sci-libs/itk-generic_label_interpolator-5.0.1/work
>>> Preparing source in /var/tmp/portage/sci-libs/itk-generic_label_interpolator-5.0.1/work/ITKGenericLabelInterpolator-187ab99b7d42718c99e5017f0acd3900d7469bd1 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/sci-libs/itk-generic_label_interpolator-5.0.1/work/ITKGenericLabelInterpolator-187ab99b7d42718c99e5017f0acd3900d7469bd1 ...
>>> Working in BUILD_DIR: "/var/tmp/portage/sci-libs/itk-generic_label_interpolator-5.0.1/work/itk-generic_label_interpolator-5.0.1_build"
cmake -C /var/tmp/portage/sci-libs/itk-generic_label_interpolator-5.0.1/work/itk-generic_label_interpolator-5.0.1_build/gentoo_common_config.cmake -G Unix Makefiles -DCMAKE_INSTALL_PREFIX=/usr -DITK_DIR=/usr/include/ITK-5.0/ -DCMAKE_BUILD_TYPE=Gentoo -DCMAKE_TOOLCHAIN_FILE=/var/tmp/portage/sci-libs/itk-generic_label_interpolator-5.0.1/work/itk-generic_label_interpolator-5.0.1_build/gentoo_toolchain.cmake  /var/tmp/portage/sci-libs/itk-generic_label_interpolator-5.0.1/work/ITKGenericLabelInterpolator-187ab99b7d42718c99e5017f0acd3900d7469bd1
loading initial cache file /var/tmp/portage/sci-libs/itk-generic_label_interpolator-5.0.1/work/itk-generic_label_interpolator-5.0.1_build/gentoo_common_config.cmake
-- The C compiler identification is GNU 9.1.0
-- The CXX compiler identification is GNU 9.1.0
-- Check for working C compiler: /usr/bin/x86_64-pc-linux-gnu-gcc
-- Check for working C compiler: /usr/bin/x86_64-pc-linux-gnu-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/x86_64-pc-linux-gnu-g++
-- Check for working CXX compiler: /usr/bin/x86_64-pc-linux-gnu-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Error at CMakeLists.txt:7 (include):
  include could not find load file:

    ITKModuleExternal


-- <<< Gentoo configuration >>>
Build type      Gentoo
Install path    /usr
Compiler flags:
C               -march=native -O2 -pipe
C++             -march=native -O2 -pipe
Linker flags:
Executable      -Wl,-O1 -Wl,--as-needed
Module          -Wl,-O1 -Wl,--as-needed
Shared          -Wl,-O1 -Wl,--as-needed

-- Configuring incomplete, errors occurred!

Can you help me out?

[dzenanz]

ITKModuleExternal.cmake is not installed. @thewtex is that a bug? That is, is building remote modules against installed version of ITK supposed to work?

@TheChymera building remote modules should work against ITK's build folder.

[TheChymera]

I am building ITK with:

cmake -C /var/tmp/portage/sci-libs/itk-5.0.1/work/itk-5.0.1_build/gentoo_common_config.cmake
    -G Unix Makefiles -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_SHARED_LIBS=ON 
    -DGDCM_USE_SYSTEM_OPENJPEG=ON -DITK_FORBID_DOWNLOADS:BOOL=ON 
    -DITK_USE_SYSTEM_DCMTK=ON -DITK_USE_SYSTEM_DOUBLECONVERSION=ON 
    -DITK_USE_SYSTEM_CASTXML=ON -DITK_USE_SYSTEM_HDF5=ON 
    -DITK_USE_SYSTEM_JPEG=ON -DITK_USE_SYSTEM_PNG=ON 
    -DITK_USE_SYSTEM_SWIG=ON -DITK_USE_SYSTEM_TIFF=ON 
    -DITK_USE_SYSTEM_ZLIB=ON -DITK_USE_KWSTYLE=OFF 
    -DITK_BUILD_DEFAULT_MODULES=ON -DITK_COMPUTER_MEMORY_SIZE=1 
    -DWRAP_ITK_JAVA=OFF -DWRAP_ITK_TCL=OFF -Ddouble-conversion_INCLUDE_DIRS=/usr/include/double-conversion
    -DExternalData_OBJECT_STORES=/var/tmp/portage/sci-libs/itk-5.0.1/work/InsightToolkit-5.0.1/.ExternalData
    -DModule_GenericLabelInterpolator:BOOL=ON -DBUILD_EXAMPLES=OFF 
    -DITK_USE_REVIEW=OFF -DITK_INSTALL_LIBRARY_DIR=lib64 -DITK_WRAP_PYTHON=OFF 
    -DCMAKE_BUILD_TYPE=Gentoo -DCMAKE_TOOLCHAIN_FILE=/var/tmp/portage/sci-libs/itk-5.0.1/work/itk-5.0.1_build/gentoo_toolchain.cmake
    /var/tmp/portage/sci-libs/itk-5.0.1/work/InsightToolkit-5.0.1

[thewtex]

That is, is building remote modules against installed version of ITK supposed to work?

ITK remote modules can only currently be built against an ITK build tree -- they cannot be built against an ITK install tree.

[TheChymera]

oh, ok. That complicates the package management quite a bit. Is there any intent to make them buildable against an ITK install tree in the future?

[thewtex]

There is an intent, but it will require significant effort, and there is no current timeline.