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GNU: C++23 support

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Added in GCC commit 78739c2df788ee5c868d998a6333d453317d8711, released in 11.1.
No lettered variant beforehand this time around.

Implements #22139.
This commit is contained in:
Raul Tambre
2021-05-08 13:47:18 +03:00
committed by Brad King
parent c9a1e06a18
commit 9fbbebe3d0
1 changed files with 2 additions and 0 deletions
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Modules/Compiler/GNU-CXX.cmake
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@@ -64,6 +64,8 @@ endif()
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 11.1)
set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std=c++20")
set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std=gnu++20")
set(CMAKE_CXX23_STANDARD_COMPILE_OPTION "-std=c++23")
set(CMAKE_CXX23_EXTENSION_COMPILE_OPTION "-std=gnu++23")
elseif(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 8.0)
set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std=c++2a")
set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std=gnu++2a")