include(CheckIncludeFileCXX)

check_include_file_cxx("source_location" SOURCE_LOCATION_AVAILABLE)
if(SOURCE_LOCATION_AVAILABLE) 
    target_compile_definitions(clio PUBLIC "HAS_SOURCE_LOCATION")
endif()

check_include_file_cxx("experimental/source_location" EXPERIMENTAL_SOURCE_LOCATION_AVAILABLE)
if(EXPERIMENTAL_SOURCE_LOCATION_AVAILABLE)     
    target_compile_definitions(clio PUBLIC "HAS_EXPERIMENTAL_SOURCE_LOCATION")
endif()