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| author | Brad King <brad.king@kitware.com> | 2018-03-28 14:56:58 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2018-03-29 14:40:13 (GMT) |
| commit | a53cf69022e57d859864d59b9c03238f180cb400 (patch) | |
| tree | ccdf77c39e894283afbeba71eeaf8e3dd78f4bfa /Modules/Compiler/MSVC-C.cmake | |
| parent | e62dfeccb1bb6a86a85f34908343a89f6d02ee6a (diff) | |
| download | CMake-a53cf69022e57d859864d59b9c03238f180cb400.zip CMake-a53cf69022e57d859864d59b9c03238f180cb400.tar.gz CMake-a53cf69022e57d859864d59b9c03238f180cb400.tar.bz2 | |
Features: Record C features for MSVC
The MSVC C compiler has no notion of C language standards or flags.
Tell CMake to assume that all language standards are available.
Record available C language features depending on the version of
the compiler.
Fixes: #17858
Diffstat (limited to 'Modules/Compiler/MSVC-C.cmake')
| -rw-r--r-- | Modules/Compiler/MSVC-C.cmake | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Modules/Compiler/MSVC-C.cmake b/Modules/Compiler/MSVC-C.cmake new file mode 100644 index 0000000..22c34f8 --- /dev/null +++ b/Modules/Compiler/MSVC-C.cmake @@ -0,0 +1,25 @@ +# MSVC has no specific options to set C language standards, but set them as +# empty strings anyways so the feature test infrastructure can at least check +# to see if they are defined. +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 "") + +# There is no meaningful default for this +set(CMAKE_C_STANDARD_DEFAULT "") + +# There are no C compiler modes so we only need to test features once. +# Override the default macro for this special case. Pretend that +# all language standards are available so that at least compilation +# can be attempted. +macro(cmake_record_c_compile_features) + list(APPEND CMAKE_C_COMPILE_FEATURES + c_std_90 + c_std_99 + c_std_11 + ) + _record_compiler_features(C "" CMAKE_C_COMPILE_FEATURES) +endmacro() |