..\boost/cobalt/io/buffer.hpp(254): warning C4251: 'boost::cobalt::io::mutable_buffer_sequence::head_': 'boost::asio::mutable_buffer' needs to have dll-interface to be used by clients of 'boost::cobalt::io::mutable_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(256): warning C4251: 'boost::cobalt::io::mutable_buffer_sequence::tail_': 'std::span<const boost::asio::mutable_buffer,18446744073709551615>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::mutable_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(500): warning C4251: 'boost::cobalt::io::const_buffer_sequence::head_': 'boost::asio::const_buffer' needs to have dll-interface to be used by clients of 'boost::cobalt::io::const_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(502): warning C4251: 'boost::cobalt::io::const_buffer_sequence::tail_': 'std::span<const boost::asio::const_buffer,18446744073709551615>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::const_buffer_sequence'
                

..\boost/cobalt/io/buffer.hpp(254): warning C4251: 'boost::cobalt::io::mutable_buffer_sequence::head_': 'boost::asio::mutable_buffer' needs to have dll-interface to be used by clients of 'boost::cobalt::io::mutable_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(256): warning C4251: 'boost::cobalt::io::mutable_buffer_sequence::tail_': 'std::span<const boost::asio::mutable_buffer,18446744073709551615>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::mutable_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(500): warning C4251: 'boost::cobalt::io::const_buffer_sequence::head_': 'boost::asio::const_buffer' needs to have dll-interface to be used by clients of 'boost::cobalt::io::const_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(502): warning C4251: 'boost::cobalt::io::const_buffer_sequence::tail_': 'std::span<const boost::asio::const_buffer,18446744073709551615>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::const_buffer_sequence'
..\boost/cobalt/io/resolver.hpp(44): warning C4251: 'boost::cobalt::io::resolver::resolve_op_::host_': 'std::basic_string_view<char,std::char_traits<char>>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::resolver::resolve_op_'
..\boost/cobalt/io/resolver.hpp(45): warning C4251: 'boost::cobalt::io::resolver::resolve_op_::service_': 'std::basic_string_view<char,std::char_traits<char>>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::resolver::resolve_op_'
..\boost/cobalt/io/resolver.hpp(70): warning C4251: 'boost::cobalt::io::lookup::host_': 'std::basic_string_view<char,std::char_traits<char>>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::lookup'
..\boost/cobalt/io/resolver.hpp(71): warning C4251: 'boost::cobalt::io::lookup::service_': 'std::basic_string_view<char,std::char_traits<char>>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::lookup'
..\boost/cobalt/io/resolver.hpp(72): warning C4251: 'boost::cobalt::io::lookup::resolver_': 'boost::asio::ip::basic_resolver<boost::cobalt::io::protocol_type,boost::cobalt::executor>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::lookup'
                

..\boost/cobalt/io/buffer.hpp(254): warning C4251: 'boost::cobalt::io::mutable_buffer_sequence::head_': 'boost::asio::mutable_buffer' needs to have dll-interface to be used by clients of 'boost::cobalt::io::mutable_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(256): warning C4251: 'boost::cobalt::io::mutable_buffer_sequence::tail_': 'std::span<const boost::asio::mutable_buffer,18446744073709551615>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::mutable_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(500): warning C4251: 'boost::cobalt::io::const_buffer_sequence::head_': 'boost::asio::const_buffer' needs to have dll-interface to be used by clients of 'boost::cobalt::io::const_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(502): warning C4251: 'boost::cobalt::io::const_buffer_sequence::tail_': 'std::span<const boost::asio::const_buffer,18446744073709551615>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::const_buffer_sequence'
                

..\boost/cobalt/io/buffer.hpp(254): warning C4251: 'boost::cobalt::io::mutable_buffer_sequence::head_': 'boost::asio::mutable_buffer' needs to have dll-interface to be used by clients of 'boost::cobalt::io::mutable_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(256): warning C4251: 'boost::cobalt::io::mutable_buffer_sequence::tail_': 'std::span<const boost::asio::mutable_buffer,18446744073709551615>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::mutable_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(500): warning C4251: 'boost::cobalt::io::const_buffer_sequence::head_': 'boost::asio::const_buffer' needs to have dll-interface to be used by clients of 'boost::cobalt::io::const_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(502): warning C4251: 'boost::cobalt::io::const_buffer_sequence::tail_': 'std::span<const boost::asio::const_buffer,18446744073709551615>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::const_buffer_sequence'
                

..\boost/cobalt/io/buffer.hpp(254): warning C4251: 'boost::cobalt::io::mutable_buffer_sequence::head_': 'boost::asio::mutable_buffer' needs to have dll-interface to be used by clients of 'boost::cobalt::io::mutable_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(256): warning C4251: 'boost::cobalt::io::mutable_buffer_sequence::tail_': 'std::span<const boost::asio::mutable_buffer,18446744073709551615>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::mutable_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(500): warning C4251: 'boost::cobalt::io::const_buffer_sequence::head_': 'boost::asio::const_buffer' needs to have dll-interface to be used by clients of 'boost::cobalt::io::const_buffer_sequence'
..\boost/cobalt/io/buffer.hpp(502): warning C4251: 'boost::cobalt::io::const_buffer_sequence::tail_': 'std::span<const boost::asio::const_buffer,18446744073709551615>' needs to have dll-interface to be used by clients of 'boost::cobalt::io::const_buffer_sequence'
..\boost/cobalt/io/sleep.hpp(24): warning C4251: 'boost::cobalt::detail::io::steady_sleep::tp': 'std::chrono::time_point<std::chrono::steady_clock,std::chrono::nanoseconds>' needs to have dll-interface to be used by clients of 'boost::cobalt::detail::io::steady_sleep'
..\boost/cobalt/io/sleep.hpp(34): warning C4251: 'boost::cobalt::detail::io::steady_sleep::timer_': 'std::optional<boost::asio::basic_waitable_timer<std::chrono::steady_clock,boost::asio::wait_traits<std::chrono::steady_clock>,boost::cobalt::executor>>' needs to have dll-interface to be used by clients of 'boost::cobalt::detail::io::steady_sleep'
..\boost/cobalt/io/sleep.hpp(42): warning C4251: 'boost::cobalt::detail::io::system_sleep::tp': 'std::chrono::time_point<std::chrono::system_clock,std::chrono::duration<std::chrono::system_clock::rep,std::chrono::system_clock::period>>' needs to have dll-interface to be used by clients of 'boost::cobalt::detail::io::system_sleep'
..\boost/cobalt/io/sleep.hpp(53): warning C4251: 'boost::cobalt::detail::io::system_sleep::timer_': 'std::optional<boost::asio::basic_waitable_timer<std::chrono::system_clock,boost::asio::wait_traits<std::chrono::system_clock>,boost::cobalt::executor>>' needs to have dll-interface to be used by clients of 'boost::cobalt::detail::io::system_sleep'