CMakeLists.txt

# Require a CMake version providing FindCUDAToolkit
cmake_minimum_required(VERSION 3.17 FATAL_ERROR)

## Only policies introduced after the cmake_minimum_required
## version need to explicitly be set to NEW.
## Refer to https://cmake.org/cmake/help/v3.11/manual/cmake-policies.7.html
set(CMAKE_POLICIES CMP0135)

foreach(p ${CMAKE_POLICIES})
  if(POLICY ${p})
    cmake_policy(SET ${p} NEW)
  endif()
endforeach()

project(CudaCommon)

if(NOT ITK_SOURCE_DIR)
  include(itk-module-init.cmake)
endif()

set(CudaCommon_LIBRARIES CudaCommon)
set(CudaCommon_INCLUDE_DIRS ${CudaCommon_SOURCE_DIR}/include ${CUDAToolkit_INCLUDE_DIRS})

# --------------------------------------------------------
# Find ITK (required)
if(NOT ITK_SOURCE_DIR)
  find_package(ITK 5.2 REQUIRED)
endif()

if(NOT ITK_SOURCE_DIR)
  if(NOT EXISTS ${ITK_CMAKE_DIR}/ITKModuleMacros.cmake)
    message(FATAL_ERROR "Modules can only be built against an ITK build tree; they cannot be built against an ITK install tree.")
  endif()

  list(APPEND CMAKE_MODULE_PATH ${ITK_CMAKE_DIR})
  include(ITKModuleExternal)
else()
  set(ITK_DIR ${CMAKE_BINARY_DIR})
  itk_module_impl()
endif()