cmake_minimum_required(VERSION 3.20)

project(mini-odeint)

option(FORCE_FETCH_CATCH2 "Force fetching Catch2" OFF)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

find_package(Catch2 3 QUIET)

if(NOT TARGET Catch2::Catch2WithMain OR FORCE_FETCH_CATCH2)
  include(FetchContent)
  FetchContent_Declare(
    Catch2
    GIT_REPOSITORY https://github.com/catchorg/Catch2.git
    GIT_TAG v3.4.0)
  FetchContent_MakeAvailable(Catch2)
  list(APPEND CMAKE_MODULE_PATH ${catch2_SOURCE_DIR}/extras)
endif()

include(CTest)
include(Catch)

add_executable(tests mini-odeint-tests.cpp mini-odeint.hpp)
target_link_libraries(tests PRIVATE Catch2::Catch2WithMain)

catch_discover_tests(tests)