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Features: Record the oldest supported compiler.

Browse Source 
This may be used to ensure that features are reported correctly
only if the compiler minimum version is met.
This commit is contained in:
Stephen Kelly 2014-05-08 17:56:29 +02:00
parent df6ff642d0
commit f782417b8c
1 changed files with 9 additions and 10 deletions
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19
Modules/Compiler/GNU-CXX-FeatureTests.cmake
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@ -1,7 +1,7 @@
# Reference: http://gcc.gnu.org/projects/cxx0x.html
set(_oldestSupported "(__GNUC__ * 100 + __GNUC_MINOR__) >= 407")
set(_cmake_oldestSupported "(__GNUC__ * 100 + __GNUC_MINOR__) >= 407")
# Introduced in GCC 4.8.1
set(GNU481_CXX11 "((__GNUC__ * 100 + __GNUC_MINOR__) >= 408 && __GNUC_PATCHLEVEL__ >= 1) && __cplusplus >= 201103L")
set(_cmake_feature_test_cxx_decltype_incomplete_return_types "${GNU481_CXX11}")
@ -27,7 +27,7 @@ set(_cmake_feature_test_cxx_user_literals "${GNU47_CXX11}")
# experiemental and possibly incomplete (see for example the note below about
# cxx_variadic_template_template_parameters)
# TODO: Should be supported by GNU 4.6
set(GNU46_CXX11 "${_oldestSupported} && __cplusplus >= 201103L")
set(GNU46_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L")
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 "${GNU46_CXX11}")
@ -35,13 +35,13 @@ set(_cmake_feature_test_cxx_nullptr "${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 "${_oldestSupported} && __cplusplus >= 201103L")
set(GNU45_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L")
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 "${_oldestSupported} && __cplusplus >= 201103L")
set(GNU44_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L")
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 "${GNU44_CXX11}")
@ -61,7 +61,7 @@ set(_cmake_feature_test_cxx_variadic_templates "${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 "${_oldestSupported} && __cplusplus >= 201103L")
set(GNU43_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L")
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 "${GNU43_CXX11}")
@ -69,9 +69,8 @@ set(_cmake_feature_test_cxx_right_angle_brackets "${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 "${_oldestSupported} && __cplusplus >= 201103L")
set(_cmake_feature_test_cxx_extern_templates "${_cmake_oldestSupported} && __cplusplus >= 201103L")
# TODO: Should be supported forever?
set(_cmake_feature_test_cxx_func_identifier "${_oldestSupported} && __cplusplus >= 201103L")
set(_cmake_feature_test_cxx_variadic_macros "${_oldestSupported} && __cplusplus >= 201103L")
set(_cmake_feature_test_cxx_template_template_parameters "${_oldestSupported} && __cplusplus >= 199711L")
set(_oldestSupported)
set(_cmake_feature_test_cxx_func_identifier "${_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")