OSX 10.11: Undefined symbols for architecture x86_64: boost::network::http::impl::ssl_delegate::ssl_delegate() #690

[100%] Linking CXX executable ../../kovri
Undefined symbols for architecture x86_64:
  "boost::network::http::impl::ssl_delegate::ssl_delegate(boost::asio::io_service&, bool, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, long)", referenced from:
      std::__1::shared_ptr<boost::network::http::impl::ssl_delegate> std::__1::shared_ptr<boost::network::http::impl::ssl_delegate>::make_shared<boost::asio::io_service&, bool&, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&, long&>(boost::asio::io_service&&&, bool&&&, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&&&, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&&&, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&&&, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&&&, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&&&, boost::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >&&&, long&&&) in libkovri-client.a(http.cc.o)
  "boost::network::http::impl::ssl_delegate::~ssl_delegate()", referenced from:
      std::__1::__shared_ptr_emplace<boost::network::http::impl::ssl_delegate, std::__1::allocator<boost::network::http::impl::ssl_delegate> >::~__shared_ptr_emplace() in libkovri-client.a(http.cc.o)
      std::__1::__shared_ptr_emplace<boost::network::http::impl::ssl_delegate, std::__1::allocator<boost::network::http::impl::ssl_delegate> >::~__shared_ptr_emplace() in libkovri-client.a(http.cc.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [kovri] Error 1
make[2]: *** [src/app/CMakeFiles/kovri-app.dir/all] Error 2
make[1]: *** [all] Error 2
make: *** [all-options] Error 2