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Add version check for C++17 features in suffix.hpp

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Fixes https://github.com/boostorg/config/issues/287.
This commit is contained in:
jzmaddock
2019-10-29 09:29:04 +00:00
parent 7292b5d6d1
commit 8dcea4d78c
1 changed files with 1 additions and 1 deletions
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include/boost/config/detail/suffix.hpp
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@@ -1042,7 +1042,7 @@ namespace std{ using ::type_info; }
#endif #endif
// This is a catch all case for obsolete compilers / std libs: // This is a catch all case for obsolete compilers / std libs:
#if !defined(__has_include) #if (!defined(__has_include) || (__cplusplus < 201700)) && !defined(_MSC_VER)
# define BOOST_NO_CXX17_HDR_OPTIONAL # define BOOST_NO_CXX17_HDR_OPTIONAL
# define BOOST_NO_CXX17_HDR_STRING_VIEW # define BOOST_NO_CXX17_HDR_STRING_VIEW
# define BOOST_NO_CXX17_HDR_VARIANT # define BOOST_NO_CXX17_HDR_VARIANT