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| author | Ruben Van Boxem <vanboxem.ruben@gmail.com> | 2017-06-17 22:39:09 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2017-06-27 17:04:41 (GMT) |
| commit | c67bb5bae386b323746c6d471a25272e9e497792 (patch) | |
| tree | 0f2f336a92bc1f9209fd153e4b32fbb41e37b064 /Modules/Compiler/Clang-CXX.cmake | |
| parent | 1363a0cbcef00cb9a49eba3b68283b5b6d1b95a5 (diff) | |
| download | CMake-c67bb5bae386b323746c6d471a25272e9e497792.zip CMake-c67bb5bae386b323746c6d471a25272e9e497792.tar.gz CMake-c67bb5bae386b323746c6d471a25272e9e497792.tar.bz2 | |
Clang: Do not add '-std=' options when simulating MSVC
The `cl.exe` style command line does not accept the `-std=` options.
Instead behave like MSVC where we don't define standard levels.
Fixes: #16266
Diffstat (limited to 'Modules/Compiler/Clang-CXX.cmake')
| -rw-r--r-- | Modules/Compiler/Clang-CXX.cmake | 60 |
1 files changed, 38 insertions, 22 deletions
diff --git a/Modules/Compiler/Clang-CXX.cmake b/Modules/Compiler/Clang-CXX.cmake index d3707ee..efc68b3 100644 --- a/Modules/Compiler/Clang-CXX.cmake +++ b/Modules/Compiler/Clang-CXX.cmake @@ -10,30 +10,46 @@ if(APPLE AND NOT appleClangPolicy STREQUAL NEW) return() endif() -if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 2.1) - set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++98") - set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=gnu++98") -endif() +if(NOT "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC") + if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 2.1) + set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++98") + set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=gnu++98") + endif() -if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.1) - set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11") - set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11") -elseif(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 2.1) - set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++0x") - set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++0x") -endif() + if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.1) + set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11") + set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11") + elseif(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 2.1) + set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++0x") + set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++0x") + endif() -if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.5) - set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++14") - set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++14") -elseif(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.4) - set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++1y") - set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++1y") -endif() + if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.5) + set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++14") + set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++14") + elseif(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.4) + set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++1y") + set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++1y") + endif() -if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.5) - set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std=c++1z") - set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std=gnu++1z") + if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.5) + set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std=c++1z") + set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std=gnu++1z") + endif() +else() + # clang-cl does not know these options because it behaves like cl.exe + 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 "") endif() -__compiler_check_default_language_standard(CXX 2.1 98) +if(NOT "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC") + __compiler_check_default_language_standard(CXX 2.1 98) +else() + set(CMAKE_CXX_STANDARD_DEFAULT "") +endif() |