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ef47e18ad0
In commit 3aaf1d91bf (MSVC: C++20 final flag, C++23 support, 2021-05-29,
v3.20.4~7^2~1) we forgot to add `cxx_std_23` to the fallback table for
MSVC versions from VS 2010 through VS 2015. This allows project to at
least attempt compilation with these compilers since they do not have
any modes.
Issue: #22729
83 lines
3.3 KiB
CMake
83 lines
3.3 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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include(Compiler/CMakeCommonCompilerMacros)
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set(CMAKE_CXX_CLANG_TIDY_DRIVER_MODE "cl")
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if ((CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.0.24215.1 AND
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CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.10) OR
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CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.10.25017)
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# VS 2015 Update 3 and above support language standard level flags,
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# with the default and minimum level being C++14.
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set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
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set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
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set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "")
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set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std:c++14")
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set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std:c++14")
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if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.11.25505)
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set(CMAKE_CXX11_STANDARD__HAS_FULL_SUPPORT ON)
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set(CMAKE_CXX14_STANDARD__HAS_FULL_SUPPORT ON)
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set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std:c++17")
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set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std:c++17")
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else()
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set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std:c++latest")
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set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std:c++latest")
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endif()
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if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.29.30129)
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set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std:c++20")
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set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std:c++20")
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set(CMAKE_CXX23_STANDARD_COMPILE_OPTION "-std:c++latest")
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set(CMAKE_CXX23_EXTENSION_COMPILE_OPTION "-std:c++latest")
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elseif(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.12.25835)
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set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std:c++latest")
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set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std:c++latest")
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endif()
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__compiler_check_default_language_standard(CXX 19.0 14)
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elseif (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 16.0)
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# MSVC has no specific options to set language standards, but set them as
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# empty strings anyways so the feature test infrastructure can at least check
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# to see if they are defined.
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set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
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set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "")
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set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "")
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set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "")
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set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "")
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set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "")
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# There is no meaningful default for this
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set(CMAKE_CXX_STANDARD_DEFAULT "")
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# There are no compiler modes so we only need to test features once.
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# Override the default macro for this special case. Pretend that
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# all language standards are available so that at least compilation
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# can be attempted.
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macro(cmake_record_cxx_compile_features)
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list(APPEND CMAKE_CXX_COMPILE_FEATURES
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cxx_std_98
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cxx_std_11
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cxx_std_14
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cxx_std_17
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cxx_std_20
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cxx_std_23
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)
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_record_compiler_features(CXX "" CMAKE_CXX_COMPILE_FEATURES)
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endmacro()
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endif()
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# /JMC "Just My Code" is only supported by MSVC 19.05 onward.
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if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.05)
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set(CMAKE_CXX_COMPILE_OPTIONS_JMC "-JMC")
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endif()
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