From 7f295b1bd3c6f4b86ebf3711fa8d76cdaf4f51a5 Mon Sep 17 00:00:00 2001 From: Brad King Date: Mon, 26 Mar 2018 14:29:04 -0400 Subject: Features: Activate C++ 20 support for Clang 5.0+ --- Modules/Compiler/Clang-CXX.cmake | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Modules/Compiler/Clang-CXX.cmake b/Modules/Compiler/Clang-CXX.cmake index 8e8ab4f..321ddf6 100644 --- a/Modules/Compiler/Clang-CXX.cmake +++ b/Modules/Compiler/Clang-CXX.cmake @@ -39,6 +39,11 @@ if(NOT "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC") set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std=c++1z") set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std=gnu++1z") endif() + + if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.0) + set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std=c++2a") + set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std=gnu++2a") + endif() else() # clang-cl does not know these options because it behaves like cl.exe set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "") -- cgit v0.12