support boost 1.87

[miyanyan]

hi, asio removed some previously deprecated facilities, see https://www.boost.org/doc/libs/1_87_0/doc/html/boost_asio/history.html

I found this when I update vcpkg's boost to 1.87, if you want update you can use my patch, https://github.com/microsoft/vcpkg/pull/42678/files#diff-8c050938d3e295d388fcb05fd405b5edf99a1935e1d13390e0c39c3962eddc37

[ihsandemir]

@miyanyan Thanks for the issue. We need to update the min. supported Boost version and probably also need to update the minimum supported C++ language level to 14 to handle the changes.

[miyanyan]

you can set boost version >= 1.66.0, then most asio functions can use:

• io_service -> io_context
• remove tcp::resolver::query, use ip::basic_resolver::resolve
• use tcp::resolver::results_type::iterator
• use asio::post
• use asio::executor_work_guardasio::io_service::executor_type
• use asio::steady_timer::expires_after
• use asio::ip::make_address

forrfc2818_verificationneed:

#if BOOST_ASIO_VERSION >= 103300
namespace boost {
  namespace asio {
    namespace ssl {
      using rfc2818_verification = boost::asio::ssl::host_name_verification;
    }
  }
}

boost-1-87-fix.patch