1
2set(_cmake_oldestSupported "((__clang_major__ * 100) + __clang_minor__) >= 400")
3
4set(AppleClang_C11 "${_cmake_oldestSupported} && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L")
5set(_cmake_feature_test_c_static_assert "${AppleClang_C11}")
6set(AppleClang_C99 "${_cmake_oldestSupported} && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L")
7set(_cmake_feature_test_c_restrict "${AppleClang_C99}")
8set(_cmake_feature_test_c_variadic_macros "${AppleClang_C99}")
9
10set(AppleClang_C90 "${_cmake_oldestSupported}")
11set(_cmake_feature_test_c_function_prototypes "${AppleClang_C90}")
12