支持VS2022和C++20

CMakeLists.txt

@@ -31,10 +31,19 @@ endif()
 
 message(STATUS "LIBRF_COMPILER_SETTING=${LIBRF_COMPILER_SETTING}")
 
+	message(STATUS "CMAKE_CXX_COMPILER_VERSION=${CMAKE_CXX_COMPILER_VERSION}")
 if(${LIBRF_COMPILER_SETTING} STREQUAL "msvc")
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++latest /await /EHsc")
+	if (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "19.30.0.0")
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++20 /EHsc")	#VS2022
+	else()
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++latest /EHsc /await")	#VS2019
+	endif()
 elseif ("${LIBRF_COMPILER_SETTING}" STREQUAL "clang_on_msvc")
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++latest /EHsc")
+	if (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "19.30.0.0")
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++20 /EHsc")		#VS2022
+	else()
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++latest /EHsc")	#VS2019
+	endif()
 elseif ("${LIBRF_COMPILER_SETTING}" STREQUAL "clang")
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++2a -fcoroutines-ts -stdlib=libc++")
 elseif ("${LIBRF_COMPILER_SETTING}" STREQUAL "gcc")