diff options
Diffstat (limited to 'Modules/Compiler/GNU-CXX-FeatureTests.cmake')
| -rw-r--r-- | Modules/Compiler/GNU-CXX-FeatureTests.cmake | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/Modules/Compiler/GNU-CXX-FeatureTests.cmake b/Modules/Compiler/GNU-CXX-FeatureTests.cmake index 6de06dd..267d658 100644 --- a/Modules/Compiler/GNU-CXX-FeatureTests.cmake +++ b/Modules/Compiler/GNU-CXX-FeatureTests.cmake @@ -2,7 +2,7 @@ # Reference: http://gcc.gnu.org/projects/cxx0x.html # http://gcc.gnu.org/projects/cxx1y.html -set(_cmake_oldestSupported "(__GNUC__ * 100 + __GNUC_MINOR__) >= 407") +set(_cmake_oldestSupported "(__GNUC__ * 100 + __GNUC_MINOR__) >= 406") set(GNU50_CXX14 "(__GNUC__ * 100 + __GNUC_MINOR__) >= 500 && __cplusplus >= 201402L") set(_cmake_feature_test_cxx_variable_templates "${GNU50_CXX14}") @@ -46,7 +46,6 @@ set(_cmake_feature_test_cxx_alias_templates "${GNU47_CXX11}") set(_cmake_feature_test_cxx_delegating_constructors "${GNU47_CXX11}") set(_cmake_feature_test_cxx_extended_friend_declarations "${GNU47_CXX11}") set(_cmake_feature_test_cxx_final "${GNU47_CXX11}") -set(_cmake_feature_test_cxx_noexcept "${GNU47_CXX11}") set(_cmake_feature_test_cxx_nonstatic_member_init "${GNU47_CXX11}") set(_cmake_feature_test_cxx_override "${GNU47_CXX11}") set(_cmake_feature_test_cxx_user_literals "${GNU47_CXX11}") @@ -55,22 +54,28 @@ set(_cmake_feature_test_cxx_user_literals "${GNU47_CXX11}") # support -std=c++11. Prior to that, support for C++11 features is technically # experiemental and possibly incomplete (see for example the note below about # cxx_variadic_template_template_parameters) +# GNU does not define __cplusplus correctly before version 4.7. +# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=1773 +# __GXX_EXPERIMENTAL_CXX0X__ is defined in prior versions, but may not be +# defined in the future. +set(GNU_CXX0X_DEFINED "(__cplusplus >= 201103L || (defined(__GXX_EXPERIMENTAL_CXX0X__) && __GXX_EXPERIMENTAL_CXX0X__))") # TODO: Should be supported by GNU 4.6 -set(GNU46_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L") +set(GNU46_CXX11 "(__GNUC__ * 100 + __GNUC_MINOR__) >= 406 && ${GNU_CXX0X_DEFINED}") set(_cmake_feature_test_cxx_constexpr "${GNU46_CXX11}") set(_cmake_feature_test_cxx_defaulted_move_initializers "${GNU46_CXX11}") set(_cmake_feature_test_cxx_enum_forward_declarations "${GNU46_CXX11}") +set(_cmake_feature_test_cxx_noexcept "${GNU46_CXX11}") set(_cmake_feature_test_cxx_nullptr "${GNU46_CXX11}") set(_cmake_feature_test_cxx_range_for "${GNU46_CXX11}") set(_cmake_feature_test_cxx_unrestricted_unions "${GNU46_CXX11}") # TODO: Should be supported by GNU 4.5 -set(GNU45_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L") +set(GNU45_CXX11 "${_cmake_oldestSupported} && ${GNU_CXX0X_DEFINED}") set(_cmake_feature_test_cxx_explicit_conversions "${GNU45_CXX11}") set(_cmake_feature_test_cxx_lambdas "${GNU45_CXX11}") set(_cmake_feature_test_cxx_local_type_template_args "${GNU45_CXX11}") set(_cmake_feature_test_cxx_raw_string_literals "${GNU45_CXX11}") # TODO: Should be supported by GNU 4.4 -set(GNU44_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L") +set(GNU44_CXX11 "${_cmake_oldestSupported} && ${GNU_CXX0X_DEFINED}") set(_cmake_feature_test_cxx_auto_type "${GNU44_CXX11}") set(_cmake_feature_test_cxx_defaulted_functions "${GNU44_CXX11}") set(_cmake_feature_test_cxx_deleted_functions "${GNU44_CXX11}") @@ -90,7 +95,7 @@ set(_cmake_feature_test_cxx_variadic_templates "${GNU44_CXX11}") # templates capability in CMake. See # http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2555.pdf # TODO: Should be supported by GNU 4.3 -set(GNU43_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L") +set(GNU43_CXX11 "${_cmake_oldestSupported} && ${GNU_CXX0X_DEFINED}") set(_cmake_feature_test_cxx_decltype "${GNU43_CXX11}") set(_cmake_feature_test_cxx_default_function_template_args "${GNU43_CXX11}") set(_cmake_feature_test_cxx_long_long_type "${GNU43_CXX11}") @@ -98,8 +103,8 @@ set(_cmake_feature_test_cxx_right_angle_brackets "${GNU43_CXX11}") set(_cmake_feature_test_cxx_rvalue_references "${GNU43_CXX11}") set(_cmake_feature_test_cxx_static_assert "${GNU43_CXX11}") # TODO: Should be supported since GNU 3.4? -set(_cmake_feature_test_cxx_extern_templates "${_cmake_oldestSupported} && __cplusplus >= 201103L") +set(_cmake_feature_test_cxx_extern_templates "${_cmake_oldestSupported} && ${GNU_CXX0X_DEFINED}") # TODO: Should be supported forever? -set(_cmake_feature_test_cxx_func_identifier "${_cmake_oldestSupported} && __cplusplus >= 201103L") -set(_cmake_feature_test_cxx_variadic_macros "${_cmake_oldestSupported} && __cplusplus >= 201103L") -set(_cmake_feature_test_cxx_template_template_parameters "${_cmake_oldestSupported} && __cplusplus >= 199711L") +set(_cmake_feature_test_cxx_func_identifier "${_cmake_oldestSupported} && ${GNU_CXX0X_DEFINED}") +set(_cmake_feature_test_cxx_variadic_macros "${_cmake_oldestSupported} && ${GNU_CXX0X_DEFINED}") +set(_cmake_feature_test_cxx_template_template_parameters "${_cmake_oldestSupported} && __cplusplus") |