| # Distributed under the OSI-approved BSD 3-Clause License. See accompanying |
| # file Copyright.txt or https://cmake.org/licensing for details. |
| |
| include(Compiler/CMakeCommonCompilerMacros) |
| |
| if(CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 19.27) |
| 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 "-std:c11") |
| set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std:c11") |
| |
| if(CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 19.28) |
| set(CMAKE_C90_STANDARD__HAS_FULL_SUPPORT ON) |
| set(CMAKE_C99_STANDARD__HAS_FULL_SUPPORT ON) |
| set(CMAKE_C11_STANDARD__HAS_FULL_SUPPORT ON) |
| set(CMAKE_C17_STANDARD_COMPILE_OPTION "-std:c17") |
| set(CMAKE_C17_EXTENSION_COMPILE_OPTION "-std:c17") |
| else() |
| # Special case for 19.27 (VS 16.7): C11 has partial support. |
| macro(cmake_record_c_compile_features) |
| _has_compiler_features_c(90) |
| _has_compiler_features_c(99) |
| list(APPEND CMAKE_C11_COMPILE_FEATURES c_std_11) |
| set(_result 0) # expected by cmake_determine_compile_features |
| endmacro() |
| endif() |
| |
| __compiler_check_default_language_standard(C 19.27 99) |
| else() |
| # 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 hard-code the known compiler supported |
| # features. 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 |
| c_std_17 |
| c_std_23 |
| c_function_prototypes |
| ) |
| list(APPEND CMAKE_C90_COMPILE_FEATURES c_std_90 c_function_prototypes) |
| list(APPEND CMAKE_C99_COMPILE_FEATURES c_std_99) |
| list(APPEND CMAKE_C11_COMPILE_FEATURES c_std_11) |
| if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 14.0) |
| list(APPEND CMAKE_C_COMPILE_FEATURES c_variadic_macros) |
| list(APPEND CMAKE_C99_COMPILE_FEATURES c_variadic_macros) |
| endif() |
| set(_result 0) # expected by cmake_determine_compile_features |
| endmacro() |
| endif() |
| |
| set(CMAKE_C_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -TC) |
| set(CMAKE_C_CLANG_TIDY_DRIVER_MODE "cl") |
| set(CMAKE_C_INCLUDE_WHAT_YOU_USE_DRIVER_MODE "cl") |
| |
| # /JMC "Just My Code" is only supported by MSVC 19.05 onward. |
| if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 19.05) |
| set(CMAKE_C_COMPILE_OPTIONS_JMC "-JMC") |
| endif() |
| |
| # The `/external:I` flag was made non-experimental in 19.29.30036.3. |
| if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 19.29.30036.3) |
| set(CMAKE_INCLUDE_SYSTEM_FLAG_C "-external:I ") |
| set(_CMAKE_INCLUDE_SYSTEM_FLAG_C_WARNING "-external:W0 ") |
| endif () |