Starting reorg of chops-net-ip repo

CMakeLists.txt

@@ -1,53 +1,57 @@
-# Copyright 2019-2020 by Cliff Green
+# Copyright (c) 2019-2024 by Cliff Green
 #
 # https://github.com/connectivecpp/chops-net-ip
 #
+# I'm still learning CMake, so improvement suggestions are always welcome.
+#
+# The Asio CMake code is taken from CPM.cmake examples/asio-standalone.
+#
 # 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 3.8 required for cxx_std_17 target_compile_features
-
-cmake_minimum_required ( VERSION 3.12 )
-
-option ( CHOPS_NET_IP_OPT_BUILD_TESTS  "Build and perform chops-net-ip tests" ON )
-option ( CHOPS_NET_IP_OPT_BUILD_EXAMPLES  "Build and perform chops-net-ip examples" ON )
-option ( CHOPS_NET_IP_OPT_BUILD_DOCS  "Build doxygen documentation" OFF )
+cmake_minimum_required ( VERSION 3.14 FATAL_ERROR )
 
-set ( OPTIONS "" )
-set ( DEFINITIONS "" )
+project ( chops_net_ip
+	  LANGUAGES CXX 
+	  DESCRIPTION "An asynchronous networking library based on Asio"
+	  HOMEPAGE_URL "https://github.com/connectivecpp/chops-net-ip/" )
 
-project ( chops-net-ip VERSION 1.0 LANGUAGES CXX )
+option ( CHOPS_NET_IP_BUILD_TESTS "Build unit tests" OFF )
+option ( CHOPS_NET_IP_BUILD_EXAMPLES "Build examples" OFF )
+option ( CHOPS_NET_IP_INSTALL "Install header only library" OFF )
 
-set ( package_name "chops-net-ip" )
+# add library targets
 
-set ( include_source_dir "${CMAKE_SOURCE_DIR}/include" )
-set ( utility_rack_dir "${CMAKE_SOURCE_DIR}/../utility-rack" )
-set ( utility_rack_include_source_dir "${utility_rack_dir}/include" )
-set ( third_party_include_source_dir "${utility_rack_dir}/third_party" )
-set ( cmake_include_dir "${CMAKE_SOURCE_DIR}/cmake" )
-set ( cmake_all_repos_include_dir "${utility_rack_dir}/cmake/all_repos" )
+add_library ( chops_net_ip INTERFACE )
+add_library ( chops::chops_net_ip ALIAS chops_net_ip )
 
+# thread support specified in Asio download
 
-# Interface library:
+include ( cmake/download_asio_cpm.cmake )
 
-add_library ( ${package_name} INTERFACE )
+# configure library target
 
-target_include_directories ( ${package_name} INTERFACE ${include_source_dir} )
-target_include_directories ( ${package_name} INTERFACE ${third_party_include_source_dir} )
-target_compile_features ( ${package_name} INTERFACE cxx_std_17)
+target_include_directories ( chops_net_ip INTERFACE
+                             $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include/>
+			     $<INSTALL_INTERFACE:include/> )
+target_compile_features ( chops_net_ip INTERFACE cxx_std_20 )
 
-if ( CHOPS_NET_IP_OPT_BUILD_TESTS )
+# check to build unit tests
+if ( ${CHOPS_NET_IP_BUILD_TESTS} )
   enable_testing()
   add_subdirectory ( test )
-endif()
+endif ()
 
-if ( CHOPS_NET_IP_OPT_BUILD_EXAMPLES )
+# check to build example code
+if ( ${CHOPS_NET_IP_BUILD_EXAMPLES} )
   add_subdirectory ( example )
-endif()
+endif ()
 
-if ( CHOPS_NET_IP_OPT_BUILD_DOCS )
-  add_subdirectory ( doc )
-endif()
+# check to install
+if ( ${CHOPS_NET_IP_INSTALL} )
+  set ( CPACK_RESOURCE_FILE_LICENSE ${CMAKE_CURRENT_SOURCE_DIR}/LICENSE.txt )
+  include ( CPack )
+endif ()
 
 # end of file