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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
include(Compiler/MSVC)
__compiler_msvc(CXX)
include(Compiler/CMakeCommonCompilerMacros)
if ((CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.0.24215.1 AND
CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.10) OR
CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.10.25017)
# VS 2015 Update 3 and above support language standard level flags,
# with the default and minimum level being C++14.
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std:c++14")
set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std:c++14")
if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.11.25505)
set(CMAKE_CXX11_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_CXX14_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std:c++17")
set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std:c++17")
else()
set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std:c++latest")
set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std:c++latest")
endif()
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.29.30129)
set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std:c++20")
set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std:c++20")
set(CMAKE_CXX23_STANDARD_COMPILE_OPTION "-std:c++latest")
set(CMAKE_CXX23_EXTENSION_COMPILE_OPTION "-std:c++latest")
elseif(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.12.25835)
set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std:c++latest")
set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std:c++latest")
endif()
__compiler_check_default_language_standard(CXX 19.0 14)
elseif (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 16.0)
# MSVC has no specific options to set language standards, but set them as
# empty strings anyways so the feature test infrastructure can at least check
# to see if they are defined.
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "")
# There is no meaningful default for this
set(CMAKE_CXX_STANDARD_DEFAULT "")
# There are no compiler modes so we only need to test features once.
# Override the default macro for this special case. Pretend that
# all language standards are available so that at least compilation
# can be attempted.
macro(cmake_record_cxx_compile_features)
list(APPEND CMAKE_CXX_COMPILE_FEATURES
cxx_std_98
cxx_std_11
cxx_std_14
cxx_std_17
cxx_std_20
cxx_std_23
cxx_std_26
)
_record_compiler_features(CXX "" CMAKE_CXX_COMPILE_FEATURES)
endmacro()
endif()
if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "19.34")
set(CMAKE_EXPERIMENTAL_CXX_MODULE_DYNDEP 1)
string(CONCAT CMAKE_EXPERIMENTAL_CXX_SCANDEP_SOURCE
"<CMAKE_CXX_COMPILER> <DEFINES> <INCLUDES> <FLAGS> <SOURCE> -nologo -TP"
" -showIncludes"
" -scanDependencies <DYNDEP_FILE>"
" -Fo<OBJECT>")
set(CMAKE_EXPERIMENTAL_CXX_SCANDEP_DEPFILE_FORMAT "msvc")
set(CMAKE_EXPERIMENTAL_CXX_MODULE_MAP_FORMAT "msvc")
set(CMAKE_EXPERIMENTAL_CXX_MODULE_MAP_FLAG "@<MODULE_MAP_FILE>")
endif ()
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