diff options
Diffstat (limited to 'Modules/Compiler')
| -rw-r--r-- | Modules/Compiler/GNU-CXX-FeatureTests.cmake | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Modules/Compiler/GNU-CXX-FeatureTests.cmake b/Modules/Compiler/GNU-CXX-FeatureTests.cmake index 4f14b17..6baa463 100644 --- a/Modules/Compiler/GNU-CXX-FeatureTests.cmake +++ b/Modules/Compiler/GNU-CXX-FeatureTests.cmake @@ -5,7 +5,20 @@ set(_oldestSupported "(__GNUC__ * 100 + __GNUC_MINOR__) >= 408") # TODO: Should be supported by GNU 4.7 set(GNU47_CXX11 "${_oldestSupported} && __cplusplus >= 201103L") set(_cmake_feature_test_cxx_delegating_constructors "${GNU47_CXX11}") +# NOTE: C++11 was ratified in September 2011. GNU 4.7 is the first minor +# release following that (March 2012), and the first minor release to +# 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) # TODO: Should be supported by GNU 4.4 set(GNU44_CXX11 "${_oldestSupported} && __cplusplus >= 201103L") set(_cmake_feature_test_cxx_auto_type "${GNU44_CXX11}") +set(_cmake_feature_test_cxx_variadic_templates "${GNU44_CXX11}") +# TODO: If features are ever recorded for GNU 4.3, there should possibly +# be a new feature added like cxx_variadic_template_template_parameters, +# which is implemented by GNU 4.4, but not 4.3. cxx_variadic_templates is +# actually implemented by GNU 4.3, but variadic template template parameters +# 'completes' it, so that is the version we record as having the variadic +# templates capability in CMake. See +# http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2555.pdf set(_oldestSupported) |