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CMake/Modules/Compiler/Clang-C-FeatureTests.cmake

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Features: Record for Clang 3.4 Clang 3.4 supports all features currently known to CMake.
2014-05-06 13:59:12 +04:00
set(_cmake_oldestSupported "((__clang_major__ * 100) + __clang_minor__) >= 304")
WCDH: Make the header -Wundef safe for the C language. The __STDC_VERSION__ macro may be defined or not depending on the implementation dialect of C. Test that it is defined before testing its value. The CXX tests do not need such a change because they define __cplusplus in all dialects.
2014-11-24 23:47:48 +03:00
set(Clang_C11 "${_cmake_oldestSupported} && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L")
Features: Record for Clang 3.4 Clang 3.4 supports all features currently known to CMake.
2014-05-06 13:59:12 +04:00
set(_cmake_feature_test_c_static_assert "${Clang_C11}")
WCDH: Make the header -Wundef safe for the C language. The __STDC_VERSION__ macro may be defined or not depending on the implementation dialect of C. Test that it is defined before testing its value. The CXX tests do not need such a change because they define __cplusplus in all dialects.
2014-11-24 23:47:48 +03:00
set(Clang_C99 "${_cmake_oldestSupported} && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L")
Features: Record for Clang 3.4 Clang 3.4 supports all features currently known to CMake.
2014-05-06 13:59:12 +04:00
set(_cmake_feature_test_c_restrict "${Clang_C99}")
set(_cmake_feature_test_c_variadic_macros "${Clang_C99}")
set(Clang_C90 "${_cmake_oldestSupported} && !defined(__STDC_VERSION__)")
set(_cmake_feature_test_c_function_prototypes "${Clang_C90}")