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COMP: Wrap build-tree system include dirs in BUILD_INTERFACE #6465

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COMP: Wrap build-tree system include dirs in BUILD_INTERFACE #6465

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13 changes: 12 additions & 1 deletion CMake/ITKModuleMacros.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -275,7 +275,18 @@ endif()
# and thus do not have separate install interface paths.
if(${itk-module}_SYSTEM_INCLUDE_DIRS)
foreach(_dir ${${itk-module}_SYSTEM_INCLUDE_DIRS})
list(APPEND ${itk-module}_SYSTEM_GENEX_INCLUDE_DIRS ${_dir})
# Build-tree paths (e.g. fetched header-only deps) are build-only; wrap for install(EXPORT).
string(FIND "${_dir}" "${CMAKE_BINARY_DIR}" _itk_bin_prefix)
string(FIND "${_dir}" "${PROJECT_BINARY_DIR}" _itk_proj_prefix)
if(_itk_bin_prefix EQUAL 0 OR _itk_proj_prefix EQUAL 0)
list(
APPEND
${itk-module}_SYSTEM_GENEX_INCLUDE_DIRS
"$<BUILD_INTERFACE:${_dir}>"
)
else()
list(APPEND ${itk-module}_SYSTEM_GENEX_INCLUDE_DIRS ${_dir})
endif()
endforeach()
endif()

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