Features: Record for historical Xcode clang versions.
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Stephen Kelly
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@ -1,5 +1,5 @@
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set(_cmake_oldestSupported "((__clang_major__ * 100) + __clang_minor__) >= 501")
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set(_cmake_oldestSupported "((__clang_major__ * 100) + __clang_minor__) >= 400")
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set(AppleClang_C11 "${_cmake_oldestSupported} && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L")
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set(_cmake_feature_test_c_static_assert "${AppleClang_C11}")
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@ -19,7 +19,7 @@ macro(cmake_record_c_compile_features)
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record_compiler_features(C "${std_version}" ${list})
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endmacro()
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if (UNIX AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 5.1)
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if (UNIX AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.0)
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_get_appleclang_features(${CMAKE_C11_STANDARD_COMPILE_OPTION} CMAKE_C11_COMPILE_FEATURES)
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if (_result EQUAL 0)
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_get_appleclang_features(${CMAKE_C99_STANDARD_COMPILE_OPTION} CMAKE_C99_COMPILE_FEATURES)
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@ -3,7 +3,28 @@
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# Generic reference: http://clang.llvm.org/cxx_status.html
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# http://clang.llvm.org/docs/LanguageExtensions.html
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set(_cmake_oldestSupported "((__clang_major__ * 100) + __clang_minor__) >= 501")
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# Note: CXX compiler in Xcode 4.3 does not set __apple_build_version__ and so is
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# not recognized as AppleClang.
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# Xcode_43 - Apple clang version 3.1 (tags/Apple/clang-318.0.61) (based on LLVM 3.1svn)
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# Xcode_44 - Apple clang version 4.0 (tags/Apple/clang-421.0.60) (based on LLVM 3.1svn)
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# Xcode_45 - Apple clang version 4.1 (tags/Apple/clang-421.11.66) (based on LLVM 3.1svn)
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# Xcode_46 - Apple LLVM version 4.2 (clang-425.0.28) (based on LLVM 3.2svn)
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# Xcode_50 - Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
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# Xcode_51 - Apple LLVM version 5.1 (clang-503.0.38) (based on LLVM 3.4svn)
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# Xcode_60 - Apple LLVM version 6.0 (clang-600.0.51) (based on LLVM 3.5svn)
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# Xcode_61 - Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn)
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# There is some non-correspondance. __has_feature(cxx_user_literals) is
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# false for AppleClang 4.0 and 4.1, although it is reported as
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# supported in the reference link for Clang 3.1. The compiler does not pass
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# the CompileFeatures/cxx_user_literals.cpp test.
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# cxx_attributes is listed as not supported until Clang 3.3. It works without
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# warning with AppleClang 5.0, but issues a gcc-compat warning for
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# AppleClang 4.0-4.2.
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# cxx_alignof and cxx_alignas tests work for early AppleClang versions, though
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# they are listed as supported for Clang 3.3 and later.
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set(_cmake_oldestSupported "((__clang_major__ * 100) + __clang_minor__) >= 400")
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include("${CMAKE_CURRENT_LIST_DIR}/Clang-CXX-TestableFeatures.cmake")
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@ -16,16 +37,16 @@ set(_cmake_feature_test_cxx_digit_separators "${AppleClang51_CXX14}")
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# http://llvm.org/bugs/show_bug.cgi?id=19674
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set(_cmake_feature_test_cxx_generic_lambdas "${AppleClang51_CXX14}")
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set(AppleClang51_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L")
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set(_cmake_feature_test_cxx_enum_forward_declarations "${AppleClang51_CXX11}")
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set(_cmake_feature_test_cxx_sizeof_member "${AppleClang51_CXX11}")
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set(_cmake_feature_test_cxx_extended_friend_declarations "${AppleClang51_CXX11}")
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set(_cmake_feature_test_cxx_extern_templates "${AppleClang51_CXX11}")
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set(_cmake_feature_test_cxx_func_identifier "${AppleClang51_CXX11}")
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set(_cmake_feature_test_cxx_inline_namespaces "${AppleClang51_CXX11}")
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set(_cmake_feature_test_cxx_long_long_type "${AppleClang51_CXX11}")
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set(_cmake_feature_test_cxx_right_angle_brackets "${AppleClang51_CXX11}")
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set(_cmake_feature_test_cxx_variadic_macros "${AppleClang51_CXX11}")
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set(AppleClang40_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L")
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set(_cmake_feature_test_cxx_enum_forward_declarations "${AppleClang40_CXX11}")
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set(_cmake_feature_test_cxx_sizeof_member "${AppleClang40_CXX11}")
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set(_cmake_feature_test_cxx_extended_friend_declarations "${AppleClang40_CXX11}")
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set(_cmake_feature_test_cxx_extern_templates "${AppleClang40_CXX11}")
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set(_cmake_feature_test_cxx_func_identifier "${AppleClang40_CXX11}")
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set(_cmake_feature_test_cxx_inline_namespaces "${AppleClang40_CXX11}")
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set(_cmake_feature_test_cxx_long_long_type "${AppleClang40_CXX11}")
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set(_cmake_feature_test_cxx_right_angle_brackets "${AppleClang40_CXX11}")
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set(_cmake_feature_test_cxx_variadic_macros "${AppleClang40_CXX11}")
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set(AppleClang_CXX98 "${_cmake_oldestSupported} && __cplusplus >= 199711L")
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set(_cmake_feature_test_cxx_template_template_parameters "${AppleClang_CXX98}")
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@ -26,8 +26,11 @@ macro(cmake_record_cxx_compile_features)
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record_compiler_features(CXX "${std_version}" ${list})
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endmacro()
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if (UNIX AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1)
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_get_appleclang_features(${CMAKE_CXX14_STANDARD_COMPILE_OPTION} CMAKE_CXX14_COMPILE_FEATURES)
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if (UNIX AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.0)
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set(_result 0)
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if(CMAKE_CXX14_STANDARD_COMPILE_OPTION)
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_get_appleclang_features(${CMAKE_CXX14_STANDARD_COMPILE_OPTION} CMAKE_CXX14_COMPILE_FEATURES)
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endif()
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if (_result EQUAL 0)
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_get_appleclang_features(${CMAKE_CXX11_STANDARD_COMPILE_OPTION} CMAKE_CXX11_COMPILE_FEATURES)
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endif()
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@ -31,6 +31,26 @@ foreach(feature ${cxx_features})
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run_test(${feature} CXX)
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endforeach()
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if (CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang"
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AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1)
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# AppleClang prior to 5.1 does not set any preprocessor define to distinguish
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# c++1y from c++11, so CMake does not support c++1y features before AppleClang 5.1.
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list(REMOVE_ITEM CXX_non_features
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cxx_attribute_deprecated
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cxx_binary_literals
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)
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endif()
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if (CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang"
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AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.2)
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# AppleClang prior to 4.1 reports false for __has_feature(cxx_local_type_template_args)
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# and __has_feature(cxx_unrestricted_unions) but it happens to pass these tests.
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list(REMOVE_ITEM CXX_non_features
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cxx_local_type_template_args
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cxx_unrestricted_unions
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)
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endif()
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if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU"
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AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8)
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# The cxx_alignof feature happens to work (for *this* testcase) with
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