1 files changed, 86 insertions, 0 deletions
diff --git a/Modules/Compiler/Clang-CXX-FeatureTests.cmake b/Modules/Compiler/Clang-CXX-FeatureTests.cmake
new file mode 100644
index 0000000..4c532fb
--- /dev/null
+++ b/Modules/Compiler/Clang-CXX-FeatureTests.cmake
@@ -0,0 +1,86 @@
+
+# Reference: http://clang.llvm.org/cxx_status.html
+# http://clang.llvm.org/docs/LanguageExtensions.html
+
+set(testable_features
+  cxx_alias_templates
+  cxx_alignas
+  cxx_attributes
+  cxx_auto_type
+  cxx_binary_literals
+  cxx_constexpr
+  cxx_contextual_conversions
+  cxx_decltype
+  cxx_decltype_incomplete_return_types
+  cxx_default_function_template_args
+  cxx_defaulted_functions
+  cxx_delegating_constructors
+  cxx_deleted_functions
+  cxx_explicit_conversions
+  cxx_generalized_initializers
+  cxx_inheriting_constructors
+  cxx_lambdas
+  cxx_local_type_template_args
+  cxx_noexcept
+  cxx_nonstatic_member_init
+  cxx_nullptr
+  cxx_range_for
+  cxx_raw_string_literals
+  cxx_reference_qualified_functions
+  cxx_relaxed_constexpr
+  cxx_return_type_deduction
+  cxx_rvalue_references
+  cxx_static_assert
+  cxx_strong_enums
+  cxx_thread_local
+  cxx_unicode_literals
+  cxx_unrestricted_unions
+  cxx_user_literals
+  cxx_variable_templates
+  cxx_variadic_templates
+)
+
+set(_cmake_oldestSupported "((__clang_major__ * 100) + __clang_minor__) >= 304")
+
+foreach(feature ${testable_features})
+  set(_cmake_feature_test_${feature} "${_cmake_oldestSupported} && __has_feature(${feature})")
+endforeach()
+
+unset(testable_features)
+
+set(_cmake_feature_test_cxx_aggregate_default_initializers "${_cmake_oldestSupported} && __has_feature(cxx_aggregate_nsdmi)")
+
+set(_cmake_feature_test_cxx_trailing_return_types "${_cmake_oldestSupported} && __has_feature(cxx_trailing_return)")
+set(_cmake_feature_test_cxx_alignof "${_cmake_oldestSupported} && __has_feature(cxx_alignas)")
+set(_cmake_feature_test_cxx_final "${_cmake_oldestSupported} && __has_feature(cxx_override_control)")
+set(_cmake_feature_test_cxx_override "${_cmake_oldestSupported} && __has_feature(cxx_override_control)")
+set(_cmake_feature_test_cxx_uniform_initialization "${_cmake_oldestSupported} && __has_feature(cxx_generalized_initializers)")
+set(_cmake_feature_test_cxx_defaulted_move_initializers "${_cmake_oldestSupported} && __has_feature(cxx_defaulted_functions)")
+set(_cmake_feature_test_cxx_lambda_init_captures "${_cmake_oldestSupported} && __has_feature(cxx_init_captures)")
+
+set(Clang34_CXX14 "((__clang_major__ * 100) + __clang_minor__) >= 304 && __cplusplus > 201103L")
+# http://llvm.org/bugs/show_bug.cgi?id=19242
+set(_cmake_feature_test_cxx_attribute_deprecated "${Clang34_CXX14}")
+# http://llvm.org/bugs/show_bug.cgi?id=19698
+set(_cmake_feature_test_cxx_decltype_auto "${Clang34_CXX14}")
+set(_cmake_feature_test_cxx_digit_separators "${Clang34_CXX14}")
+# http://llvm.org/bugs/show_bug.cgi?id=19674
+set(_cmake_feature_test_cxx_generic_lambdas "${Clang34_CXX14}")
+
+# TODO: Should be supported by Clang 3.1
+set(Clang31_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L")
+set(_cmake_feature_test_cxx_enum_forward_declarations "${Clang31_CXX11}")
+set(_cmake_feature_test_cxx_sizeof_member "${Clang31_CXX11}")
+# TODO: Should be supported by Clang 2.9
+set(Clang29_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L")
+set(_cmake_feature_test_cxx_extended_friend_declarations "${Clang29_CXX11}")
+set(_cmake_feature_test_cxx_extern_templates "${Clang29_CXX11}")
+set(_cmake_feature_test_cxx_func_identifier "${Clang29_CXX11}")
+set(_cmake_feature_test_cxx_inline_namespaces "${Clang29_CXX11}")
+set(_cmake_feature_test_cxx_long_long_type "${Clang29_CXX11}")
+set(_cmake_feature_test_cxx_right_angle_brackets "${Clang29_CXX11}")
+set(_cmake_feature_test_cxx_variadic_macros "${Clang29_CXX11}")
+
+# TODO: Should be supported forever?
+set(Clang_CXX98 "${_cmake_oldestSupported} && __cplusplus >= 199711L")
+set(_cmake_feature_test_cxx_template_template_parameters "${Clang_CXX98}")