kyles-work-imac:boost_libc++ kmtarplee$ ./build.sh 
In file included from source.cpp:2:
In file included from /opt/local/include/boost/property_tree/json_parser.hpp:14:
/opt/local/include/boost/property_tree/detail/json_parser_read.hpp:105:43: error: no viable conversion from 'pair<std::__1::basic_string<char>, std::__1::basic_string<char> >' to 'const value_type'
      (aka 'const pair<const std::__1::basic_string<char>, self_type>')
                c.stack.back()->push_back(std::make_pair(c.name, Str(b, e)));
                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/opt/local/include/boost/spirit/home/classic/core/scanner/scanner.hpp:148:13: note: in instantiation of member function 'boost::property_tree::json_parser::context<boost::property_tree::basic_ptree<std::__1::basic_string<char>,
      std::__1::basic_string<char>, std::__1::less<std::__1::basic_string<char> > > >::a_literal_val::operator()' requested here
            actor(first, last);
            ^
/opt/local/include/boost/spirit/home/classic/core/scanner/scanner.hpp:163:46: note: in instantiation of function template specialization
      'boost::spirit::classic::attributed_action_policy<boost::spirit::classic::nil_t>::call<boost::property_tree::json_parser::context<boost::property_tree::basic_ptree<std::__1::basic_string<char>, std::__1::basic_string<char>,
      std::__1::less<std::__1::basic_string<char> > > >::a_literal_val, std::__1::__wrap_iter<char *> >' requested here
            attributed_action_policy<AttrT>::call(actor, val, first, last);
                                             ^
/opt/local/include/boost/spirit/home/classic/core/composite/actions.hpp:116:22: note: in instantiation of function template specialization
      'boost::spirit::classic::action_policy::do_action<boost::property_tree::json_parser::context<boost::property_tree::basic_ptree<std::__1::basic_string<char>, std::__1::basic_string<char>,
      std::__1::less<std::__1::basic_string<char> > > >::a_literal_val, boost::spirit::classic::nil_t, std::__1::__wrap_iter<char *> >' requested here
                scan.do_action(actor, val, save, scan.first);
                     ^
/opt/local/include/boost/spirit/home/classic/core/composite/alternative.hpp:71:34: note: in instantiation of function template specialization
      'boost::spirit::classic::action<boost::spirit::classic::alternative<boost::spirit::classic::alternative<boost::spirit::classic::alternative<boost::spirit::classic::rule<boost::spirit::classic::scanner<std::__1::__wrap_iter<char
      *>, boost::spirit::classic::scanner_policies<boost::spirit::classic::skip_parser_iteration_policy<boost::spirit::classic::alternative<boost::spirit::classic::alternative<boost::spirit::classic::space_parser,
      boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::alternative<boost::spirit::classic::eol_parser, boost::spirit::classic::end_parser>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested,
      boost::spirit::classic::is_lexeme> >, boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::strlit<const char *>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested, boost::spirit::classic::is_lexeme> >, boost::spirit::classic::iteration_policy>,
      boost::spirit::classic::match_policy, boost::spirit::classic::action_policy> >, boost::spirit::classic::nil_t, boost::spirit::classic::nil_t>, boost::spirit::classic::strlit<const char *> >,
      boost::spirit::classic::strlit<const char *> >, boost::spirit::classic::strlit<const char *> >, boost::property_tree::json_parser::context<boost::property_tree::basic_ptree<std::__1::basic_string<char>,
      std::__1::basic_string<char>, std::__1::less<std::__1::basic_string<char> > > >::a_literal_val>::parse<boost::spirit::classic::scanner<std::__1::__wrap_iter<char *>,
      boost::spirit::classic::scanner_policies<boost::spirit::classic::skip_parser_iteration_policy<boost::spirit::classic::alternative<boost::spirit::classic::alternative<boost::spirit::classic::space_parser,
      boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::alternative<boost::spirit::classic::eol_parser, boost::spirit::classic::end_parser>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested,
      boost::spirit::classic::is_lexeme> >, boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::strlit<const char *>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested, boost::spirit::classic::is_lexeme> >, boost::spirit::classic::iteration_policy>,
      boost::spirit::classic::match_policy, boost::spirit::classic::action_policy> > >' requested here
            return this->right().parse(scan);
                                 ^
/opt/local/include/boost/spirit/home/classic/core/composite/alternative.hpp:67:49: note: in instantiation of function template specialization
      'boost::spirit::classic::alternative<boost::spirit::classic::action<boost::spirit::classic::rule<boost::spirit::classic::scanner<std::__1::__wrap_iter<char *>,
      boost::spirit::classic::scanner_policies<boost::spirit::classic::skip_parser_iteration_policy<boost::spirit::classic::alternative<boost::spirit::classic::alternative<boost::spirit::classic::space_parser,
      boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::alternative<boost::spirit::classic::eol_parser, boost::spirit::classic::end_parser>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested,
      boost::spirit::classic::is_lexeme> >, boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::strlit<const char *>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested, boost::spirit::classic::is_lexeme> >, boost::spirit::classic::iteration_policy>,
      boost::spirit::classic::match_policy, boost::spirit::classic::action_policy> >, boost::spirit::classic::nil_t, boost::spirit::classic::nil_t>,
      boost::property_tree::json_parser::context<boost::property_tree::basic_ptree<std::__1::basic_string<char>, std::__1::basic_string<char>, std::__1::less<std::__1::basic_string<char> > > >::a_string_val>,
      boost::spirit::classic::action<boost::spirit::classic::alternative<boost::spirit::classic::alternative<boost::spirit::classic::alternative<boost::spirit::classic::rule<boost::spirit::classic::scanner<std::__1::__wrap_iter<char
      *>, boost::spirit::classic::scanner_policies<boost::spirit::classic::skip_parser_iteration_policy<boost::spirit::classic::alternative<boost::spirit::classic::alternative<boost::spirit::classic::space_parser,
      boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::alternative<boost::spirit::classic::eol_parser, boost::spirit::classic::end_parser>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested,
      boost::spirit::classic::is_lexeme> >, boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::strlit<const char *>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested, boost::spirit::classic::is_lexeme> >, boost::spirit::classic::iteration_policy>,
      boost::spirit::classic::match_policy, boost::spirit::classic::action_policy> >, boost::spirit::classic::nil_t, boost::spirit::classic::nil_t>, boost::spirit::classic::strlit<const char *> >,
      boost::spirit::classic::strlit<const char *> >, boost::spirit::classic::strlit<const char *> >, boost::property_tree::json_parser::context<boost::property_tree::basic_ptree<std::__1::basic_string<char>,
      std::__1::basic_string<char>, std::__1::less<std::__1::basic_string<char> > > >::a_literal_val> >::parse<boost::spirit::classic::scanner<std::__1::__wrap_iter<char *>,
      boost::spirit::classic::scanner_policies<boost::spirit::classic::skip_parser_iteration_policy<boost::spirit::classic::alternative<boost::spirit::classic::alternative<boost::spirit::classic::space_parser,
      boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::alternative<boost::spirit::classic::eol_parser, boost::spirit::classic::end_parser>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested,
      boost::spirit::classic::is_lexeme> >, boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::strlit<const char *>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested, boost::spirit::classic::is_lexeme> >, boost::spirit::classic::iteration_policy>,
      boost::spirit::classic::match_policy, boost::spirit::classic::action_policy> > >' requested here
                if (result_t hit = this->left().parse(scan))
                                                ^
/opt/local/include/boost/spirit/home/classic/core/composite/alternative.hpp:67:49: note: (skipping 9 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all)
/opt/local/include/boost/spirit/home/classic/core/scanner/impl/skipper.ipp:109:38: note: in instantiation of function template specialization
      'boost::spirit::classic::grammar<boost::property_tree::json_parser::json_grammar<boost::property_tree::basic_ptree<std::__1::basic_string<char>, std::__1::basic_string<char>, std::__1::less<std::__1::basic_string<char> > >
      >, boost::spirit::classic::parser_context<boost::spirit::classic::nil_t> >::parse<boost::spirit::classic::scanner<std::__1::__wrap_iter<char *>,
      boost::spirit::classic::scanner_policies<boost::spirit::classic::skip_parser_iteration_policy<boost::spirit::classic::alternative<boost::spirit::classic::alternative<boost::spirit::classic::space_parser,
      boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::alternative<boost::spirit::classic::eol_parser, boost::spirit::classic::end_parser>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested,
      boost::spirit::classic::is_lexeme> >, boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::strlit<const char *>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested, boost::spirit::classic::is_lexeme> >, boost::spirit::classic::iteration_policy>,
      boost::spirit::classic::match_policy, boost::spirit::classic::action_policy> > >' requested here
                match<nil_t> hit = p.parse(scan);
                                     ^
/opt/local/include/boost/spirit/home/classic/core/scanner/impl/skipper.ipp:154:16: note: in instantiation of function template specialization
      'boost::spirit::classic::impl::phrase_parser<boost::spirit::classic::alternative<boost::spirit::classic::alternative<boost::spirit::classic::space_parser,
      boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::alternative<boost::spirit::classic::eol_parser, boost::spirit::classic::end_parser>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested,
      boost::spirit::classic::is_lexeme> >, boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>, boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>,
      boost::spirit::classic::strlit<const char *>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested, boost::spirit::classic::is_lexeme> > >::parse<std::__1::__wrap_iter<char *>,
      boost::property_tree::json_parser::json_grammar<boost::property_tree::basic_ptree<std::__1::basic_string<char>, std::__1::basic_string<char>, std::__1::less<std::__1::basic_string<char> > > > >' requested here
        return impl::phrase_parser<SkipT>::
               ^
/opt/local/include/boost/property_tree/detail/json_parser_read.hpp:314:33: note: in instantiation of function template specialization 'boost::spirit::classic::parse<std::__1::__wrap_iter<char *>,
      boost::property_tree::json_parser::json_grammar<boost::property_tree::basic_ptree<std::__1::basic_string<char>, std::__1::basic_string<char>, std::__1::less<std::__1::basic_string<char> > > >,
      boost::spirit::classic::alternative<boost::spirit::classic::alternative<boost::spirit::classic::space_parser, boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>,
      boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>, boost::spirit::classic::alternative<boost::spirit::classic::eol_parser, boost::spirit::classic::end_parser>,
      boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested, boost::spirit::classic::is_lexeme> >, boost::spirit::classic::confix_parser<boost::spirit::classic::strlit<const char *>,
      boost::spirit::classic::kleene_star<boost::spirit::classic::anychar_parser>, boost::spirit::classic::strlit<const char *>, boost::spirit::classic::unary_parser_category, boost::spirit::classic::non_nested,
      boost::spirit::classic::is_lexeme> > >' requested here
            parse_info<It> pi = parse(v.begin(), v.end(), g, 
                                ^
/opt/local/include/boost/property_tree/json_parser.hpp:45:9: note: in instantiation of function template specialization
      'boost::property_tree::json_parser::read_json_internal<boost::property_tree::basic_ptree<std::__1::basic_string<char>, std::__1::basic_string<char>, std::__1::less<std::__1::basic_string<char> > > >' requested here
        read_json_internal(stream, pt, std::string());
        ^
source.cpp:7:5: note: in instantiation of function template specialization 'boost::property_tree::json_parser::read_json<boost::property_tree::basic_ptree<std::__1::basic_string<char>, std::__1::basic_string<char>,
      std::__1::less<std::__1::basic_string<char> > > >' requested here
    boost::property_tree::read_json(std::cin, pt);
    ^
/usr/include/c++/v1/utility:200:24: note: candidate constructor (the implicit copy constructor) not viable: no known conversion from 'pair<std::__1::basic_string<char>, std::__1::basic_string<char> >' to 'const
      std::__1::pair<const std::__1::basic_string<char>, boost::property_tree::basic_ptree<std::__1::basic_string<char>, std::__1::basic_string<char>, std::__1::less<std::__1::basic_string<char> > > > &' for 1st argument;
struct _LIBCPP_VISIBLE pair
                       ^
/usr/include/c++/v1/utility:215:9: note: candidate template ignored: substitution failure [with _U1 = std::__1::basic_string<char>, _U2 = std::__1::basic_string<char>]
        pair(const pair<_U1, _U2>& __p,
        ^
/opt/local/include/boost/property_tree/ptree.hpp:154:46: note: passing argument to parameter 'value' here
        iterator push_back(const value_type &value);
                                             ^
1 error generated.