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A common use case of `target_compile_features` is simply to specify that the compiler should be run in a mode that is aware of e.g. C++11. Some projects simply specify a particular C++11-only feature to request this. Provide a first-class way to do this by naming features after the corresponding language standard. Record them as always available in the corresponding standard level so that requesting them always ensures that standard (or higher) is used.
17 lines
449 B
CMake
17 lines
449 B
CMake
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 16.0)
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# MSVC has no specific language level or flags to change it.
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set(CMAKE_CXX_STANDARD_DEFAULT "")
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endif()
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macro(cmake_record_cxx_compile_features)
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 16.0)
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list(APPEND CMAKE_CXX_COMPILE_FEATURES
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cxx_std_98
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cxx_std_11
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cxx_std_14
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)
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_record_compiler_features(CXX "" CMAKE_CXX_COMPILE_FEATURES)
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endif()
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endmacro()
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