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project(ITKPNG)
set(ITKPNG_THIRD_PARTY 1)
option(ITK_USE_SYSTEM_PNG "Use system-installed png" ${ITK_USE_SYSTEM_LIBRARIES})
mark_as_advanced(ITK_USE_SYSTEM_PNG)
if(ITK_USE_SYSTEM_PNG)
find_package(PNG REQUIRED)
set(ITKPNG_INCLUDE_DIRS
${ITKPNG_BINARY_DIR}/src
)
set(ITKPNG_SYSTEM_INCLUDE_DIRS
${PNG_INCLUDE_DIRS}
${PNG_INCLUDE_DIR}
)
set(ITKPNG_LIBRARIES "${PNG_LIBRARIES}")
set(ITKPNG_NO_SRC 1)
else()
set(ITKPNG_INCLUDE_DIRS
${ITKPNG_BINARY_DIR}/src
${ITKPNG_SOURCE_DIR}/src
)
set(ITKPNG_LIBRARIES itkpng)
set(ITK_LIBRARY_PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS FALSE)
endif()
configure_file(src/itk_png.h.in src/itk_png.h)
itk_module_impl()
install(FILES ${ITKPNG_BINARY_DIR}/src/itk_png.h
DESTINATION ${ITKPNG_INSTALL_INCLUDE_DIR}
COMPONENT Development
)
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