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hopefully fixed the libstdc++ 4.9 problem (thanks Jonathan)

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This commit is contained in:
Andrzej Krzemienski
2018-06-28 02:10:57 +02:00
parent 7320dd54e8
commit d13623884a
2 changed files with 9 additions and 2 deletions
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8
include/boost/optional/detail/experimental_traits.hpp
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@ -14,6 +14,7 @@
#include <boost/config.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/predef.h>
#include <boost/type_traits.hpp>
// The condition to use POD implementation
@ -38,11 +39,16 @@
# define BOOST_OPTIONAL_DETAIL_NO_SPEC_FOR_TRIVIAL_TYPES
#endif
// GCC 5 or higher, or clang with libc++ or clang with libstdc++ 5 or higher
#if __cplusplus >= 201103L
# if BOOST_WORKAROUND(BOOST_GCC, >= 50000)
# define BOOST_OPTIONAL_DETAIL_USE_STD_TYPE_TRAITS
# elif (defined BOOST_CLANG)
# define BOOST_OPTIONAL_DETAIL_USE_STD_TYPE_TRAITS
# if BOOST_LIB_STD_CXX > 0
# define BOOST_OPTIONAL_DETAIL_USE_STD_TYPE_TRAITS
# elif BOOST_LIB_STD_GNU >= 441200023 && BOOST_LIB_STD_GNU != 450600023 && BOOST_LIB_STD_GNU != 450600026 && BOOST_LIB_STD_GNU != 460800003
# define BOOST_OPTIONAL_DETAIL_USE_STD_TYPE_TRAITS
# endif
# endif
#endif