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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-C.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-C.cmake')
| -rw-r--r-- | Modules/Compiler/Clang-C.cmake | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/Modules/Compiler/Clang-C.cmake b/Modules/Compiler/Clang-C.cmake index b881e2b..a5f9d84 100644 --- a/Modules/Compiler/Clang-C.cmake +++ b/Modules/Compiler/Clang-C.cmake @@ -7,14 +7,30 @@ if(WIN32 OR (APPLE AND NOT appleClangPolicy STREQUAL NEW)) endif() if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 3.4) - set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c90") - set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu90") + if(NOT "x${CMAKE_C_SIMULATE_ID}" STREQUAL "xMSVC") + set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c90") + set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu90") - set(CMAKE_C99_STANDARD_COMPILE_OPTION "-std=c99") - set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-std=gnu99") + set(CMAKE_C99_STANDARD_COMPILE_OPTION "-std=c99") + set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-std=gnu99") - set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c11") - set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11") + set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c11") + set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11") + else() + # clang-cl doesn't have any of these + set(CMAKE_C90_STANDARD_COMPILE_OPTION "") + set(CMAKE_C90_EXTENSION_COMPILE_OPTION "") + + set(CMAKE_C99_STANDARD_COMPILE_OPTION "") + set(CMAKE_C99_EXTENSION_COMPILE_OPTION "") + + set(CMAKE_C11_STANDARD_COMPILE_OPTION "") + set(CMAKE_C11_EXTENSION_COMPILE_OPTION "") + endif() endif() -__compiler_check_default_language_standard(C 3.4 99 3.6 11) +if(NOT "x${CMAKE_C_SIMULATE_ID}" STREQUAL "xMSVC") + __compiler_check_default_language_standard(C 3.4 99 3.6 11) +else() + set(CMAKE_C_STANDARD_DEFAULT "") +endif() |