cmake_minimum_required(VERSION 3.5 FATAL_ERROR) project(FindThreads_CXX-only CXX) find_package(Threads REQUIRED) configure_file(${CMAKE_CURRENT_SOURCE_DIR}/../../../Modules/CheckForPthreads.c ${CMAKE_CURRENT_BINARY_DIR}/CheckForPthreads.cxx) if (NOT WIN32) add_executable(thr ${CMAKE_CURRENT_BINARY_DIR}/CheckForPthreads.cxx) target_link_libraries(thr Threads::Threads) endif ()