e0890d03a4
Add properties and variables corresponding to CXX equivalents. Add features for c_function_prototypes (C90), c_restrict (C99), c_variadic_macros (C99) and c_static_assert (C11). This feature set can be extended later. Add a <PREFIX>_RESTRICT symbol define to WriteCompilerDetectionHeader to conditionally represent the c_restrict feature.
13 lines
540 B
CMake
13 lines
540 B
CMake
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set(_cmake_oldestSupported "(__GNUC__ * 100 + __GNUC_MINOR__) >= 407")
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set(GNU46_C11 "${_cmake_oldestSupported} && __STDC_VERSION__ >= 201112L")
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set(_cmake_feature_test_c_static_assert "${GNU46_C11}")
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# Since 4.4 at least:
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set(GNU44_C99 "${_cmake_oldestSupported} && __STDC_VERSION__ >= 199901L")
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set(_cmake_feature_test_c_restrict "${GNU44_C99}")
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set(_cmake_feature_test_c_variadic_macros "${GNU44_C99}")
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set(GNU_C90 "${_cmake_oldestSupported} && !defined(__STDC_VERSION__)")
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set(_cmake_feature_test_c_function_prototypes "${GNU_C90}")
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