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-rw-r--r--Modules/Compiler/MSVC-CXX.cmake9
1 files changed, 9 insertions, 0 deletions
diff --git a/Modules/Compiler/MSVC-CXX.cmake b/Modules/Compiler/MSVC-CXX.cmake
index 789fff5..6a0c5d3 100644
--- a/Modules/Compiler/MSVC-CXX.cmake
+++ b/Modules/Compiler/MSVC-CXX.cmake
@@ -29,6 +29,12 @@ if ((CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.0.24215.1 AND
# for meta-features for C++14 and above. Override the default macro
# to avoid doing unnecessary work.
macro(cmake_record_cxx_compile_features)
+ if (DEFINED CMAKE_CXX20_STANDARD_COMPILE_OPTION)
+ list(APPEND CMAKE_CXX20_COMPILE_FEATURES cxx_std_20)
+ endif()
+ # The main cmake_record_cxx_compile_features macro makes all
+ # these conditional on CMAKE_CXX##_STANDARD_COMPILE_OPTION,
+ # but we can skip the conditions because we set them above.
list(APPEND CMAKE_CXX17_COMPILE_FEATURES cxx_std_17)
list(APPEND CMAKE_CXX14_COMPILE_FEATURES cxx_std_14)
list(APPEND CMAKE_CXX98_COMPILE_FEATURES cxx_std_11) # no flag needed for 11
@@ -46,6 +52,8 @@ elseif (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 16.0)
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 "")
@@ -60,6 +68,7 @@ elseif (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 16.0)
cxx_std_11
cxx_std_14
cxx_std_17
+ cxx_std_20
)
_record_compiler_features(CXX "" CMAKE_CXX_COMPILE_FEATURES)
endmacro()