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Clang: use -std=c23 for Clang 18+

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Canonical flag changed in LLVM commit 13629b140801870feff855ca168edf6b34dbef8d.
This commit is contained in:
Raul Tambre
2023-08-15 09:08:21 +03:00
committed by Brad King
parent f3d9a82110
commit 65288eb92a
1 changed files with 4 additions and 1 deletions
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5
Modules/Compiler/Clang-C.cmake
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@@ -48,7 +48,10 @@ if("x${CMAKE_C_COMPILER_FRONTEND_VARIANT}" STREQUAL "xGNU")
set(CMAKE_C17_EXTENSION_COMPILE_OPTION "-std=gnu17")
endif()
if(CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 9.0)
if(CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 18.0)
set(CMAKE_C23_STANDARD_COMPILE_OPTION "-std=c23")
set(CMAKE_C23_EXTENSION_COMPILE_OPTION "-std=gnu23")
elseif(CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 9.0)
set(CMAKE_C23_STANDARD_COMPILE_OPTION "-std=c2x")
set(CMAKE_C23_EXTENSION_COMPILE_OPTION "-std=gnu2x")
endif()