if(TARGET Catch2::Catch2) return() endif() message(STATUS "Third-party: creating target 'Catch2::Catch2'") include(FetchContent) FetchContent_Declare( catch2 GIT_REPOSITORY https://github.com/catchorg/Catch2.git GIT_TAG v2.13.8 GIT_SHALLOW TRUE ) FetchContent_MakeAvailable(catch2)