Initial copies, lots of work to do

CMakeLists.txt

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+# Copyright (c) 2024 by Cliff Green
+#
+# https://github.com/connectivecpp/periodic-timer
+#
+# I'm still learning CMake, so improvement suggestions are always welcome.
+#
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+cmake_minimum_required ( VERSION 3.14 FATAL_ERROR )
+
+project ( periodic_timer 
+ LANGUAGES CXX 
+ DESCRIPTION "A multi producer / multi consumer thread safe wait queue"
+ HOMEPAGE_URL "https://githug.com/connectivecpp/wait-queue/" )
+
+option ( WAIT_QUEUE_BUILD_TESTS "Build unit tests" OFF )
+option ( WAIT_QUEUE_BUILD_EXAMPLES "Build examples" OFF )
+option ( WAIT_QUEUE_INSTALL "Install header only library" OFF )
+
+# add library targets
+
+add_library ( wait_queue INTERFACE )
+add_library ( chops::wait_queue ALIAS wait_queue )
+
+# configure library target
+
+target_include_directories ( wait_queue INTERFACE
+ $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include/>
+ $<INSTALL_INTERFACE:include/> )
+target_compile_features ( wait_queue INTERFACE cxx_std_20 )
+
+# check to build unit tests
+if ( ${WAIT_QUEUE_BUILD_TESTS} )
+ enable_testing()
+ add_subdirectory ( test )
+endif ()
+
+# check to build example code
+if ( ${WAIT_QUEUE_BUILD_EXAMPLES} )
+ add_subdirectory ( example )
+endif ()
+
+# check to install
+if ( ${WAIT_QUEUE_INSTALL} )
+ set ( CPACK_RESOURCE_FILE_LICENSE ${CMAKE_CURRENT_SOURCE_DIR}/LICENSE.txt )
+ include ( CPack )
+endif ()
+
+# end of file
+

cmake/download_cpm.cmake

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+
+# copied from CPM.cmake GitHub site
+# download CPM.cmake
+
+file(
+ DOWNLOAD
+ https://github.com/cpm-cmake/CPM.cmake/releases/download/v0.39.0/CPM.cmake
+ ${CMAKE_CURRENT_BINARY_DIR}/cmake/CPM.cmake
+)
+include(${CMAKE_CURRENT_BINARY_DIR}/cmake/CPM.cmake)