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77 lines
2.8 KiB
77 lines
2.8 KiB
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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include(Compiler/MSVC)
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__compiler_msvc(C)
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include(Compiler/CMakeCommonCompilerMacros)
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if(CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 19.27)
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set(CMAKE_C90_STANDARD_COMPILE_OPTION "")
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set(CMAKE_C90_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_C99_STANDARD_COMPILE_OPTION "")
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set(CMAKE_C99_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std:c11")
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set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std:c11")
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set(CMAKE_C_STANDARD_LATEST 11)
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if(CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 19.28)
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set(CMAKE_C90_STANDARD__HAS_FULL_SUPPORT ON)
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set(CMAKE_C99_STANDARD__HAS_FULL_SUPPORT ON)
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set(CMAKE_C11_STANDARD__HAS_FULL_SUPPORT ON)
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set(CMAKE_C17_STANDARD_COMPILE_OPTION "-std:c17")
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set(CMAKE_C17_EXTENSION_COMPILE_OPTION "-std:c17")
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set(CMAKE_C_STANDARD_LATEST 17)
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else()
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# Special case for 19.27 (VS 16.7): C11 has partial support.
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macro(cmake_record_c_compile_features)
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_has_compiler_features_c(90)
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_has_compiler_features_c(99)
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list(APPEND CMAKE_C11_COMPILE_FEATURES c_std_11)
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set(_result 0) # expected by cmake_determine_compile_features
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endmacro()
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endif()
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__compiler_check_default_language_standard(C 19.27 99)
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else()
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# MSVC has no specific options to set C language standards, but set them as
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# empty strings anyways so the feature test infrastructure can at least check
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# to see if they are defined.
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set(CMAKE_C90_STANDARD_COMPILE_OPTION "")
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set(CMAKE_C90_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_C99_STANDARD_COMPILE_OPTION "")
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set(CMAKE_C99_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_C11_STANDARD_COMPILE_OPTION "")
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set(CMAKE_C11_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_C_STANDARD_LATEST 11)
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# There is no meaningful default for this
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set(CMAKE_C_STANDARD_DEFAULT "")
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# There are no C compiler modes so we hard-code the known compiler supported
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# features. Override the default macro for this special case. Pretend that
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# all language standards are available so that at least compilation
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# can be attempted.
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macro(cmake_record_c_compile_features)
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list(APPEND CMAKE_C_COMPILE_FEATURES
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c_std_90
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c_std_99
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c_std_11
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c_std_17
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c_std_23
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c_function_prototypes
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)
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list(APPEND CMAKE_C90_COMPILE_FEATURES c_std_90 c_function_prototypes)
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list(APPEND CMAKE_C99_COMPILE_FEATURES c_std_99)
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list(APPEND CMAKE_C11_COMPILE_FEATURES c_std_11)
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if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 14.0)
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list(APPEND CMAKE_C_COMPILE_FEATURES c_variadic_macros)
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list(APPEND CMAKE_C99_COMPILE_FEATURES c_variadic_macros)
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endif()
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set(_result 0) # expected by cmake_determine_compile_features
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endmacro()
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endif()
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set(CMAKE_C_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -TC)
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