Could not complile under FreeBSD 10.3, Clang 3.4.1, Boost 1.55:

[abclogin]

Could not complile under FreeBSD 10.3, Clang 3.4.1, Boost 1.55
Branch issue/126/fix-long-long-upgrade
New error is:

/usr/home/username/blackhole/src/formatter/json.cpp:271:9: error: call to object of type
      'blackhole::v1::formatter::<anonymous>::visitor_t' is ambiguous
        visitor(value);
        ^~~~~~~

Full log

Scanning dependencies of target blackhole
[  3%] Building CXX object CMakeFiles/blackhole.dir/src/attribute.cpp.o
In file included from /usr/home/username/blackhole/src/attribute.cpp:8:
In file included from /usr/home/username/blackhole/include/blackhole/detail/attribute.hpp:3:
In file included from /usr/local/include/boost/variant/variant.hpp:32:
/usr/local/include/boost/variant/detail/forced_return.hpp:53:1: warning: function 'forced_return<void>' could be
      declared with attribute 'noreturn' [-Wmissing-noreturn]
{
^
In file included from /usr/home/username/blackhole/src/attribute.cpp:8:
In file included from /usr/home/username/blackhole/include/blackhole/detail/attribute.hpp:3:
/usr/local/include/boost/variant/variant.hpp:997:20: warning: comparing floating point with == or != is unsafe
      [-Wfloat-equal]
        return lhs == rhs;
               ~~~ ^  ~~~
/usr/local/include/boost/variant/variant.hpp:979:16: note: in instantiation of function template specialization
      'boost::detail::variant::equal_comp::operator()<double>' requested here
        return Comp()(lhs_content, rhs_content);
               ^
/usr/local/include/boost/variant/variant.hpp:1048:16: note: in instantiation of function template specialization
      'boost::detail::variant::comparer<boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t,
      bool, long, unsigned long, double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>,
      boost::detail::variant::equal_comp>::operator()<double>' requested here
        return visitor_(operand);
               ^
/usr/local/include/boost/variant/detail/visitation_impl.hpp:128:20: note: in instantiation of function template
      specialization
      'boost::detail::variant::invoke_visitor<boost::detail::variant::comparer<boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t,
      bool, long, unsigned long, double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>,
      boost::detail::variant::equal_comp> >::internal_visit<const double>' requested here
    return visitor.internal_visit(
                   ^
/usr/local/include/boost/variant/detail/visitation_impl.hpp:170:13: note: in instantiation of function template
      specialization
      'boost::detail::variant::visitation_impl_invoke_impl<boost::detail::variant::invoke_visitor<boost::detail::variant::comparer<boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t,
      bool, long, unsigned long, double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>,
      boost::detail::variant::equal_comp> >, const void *, double>' requested here
    return (visitation_impl_invoke_impl)(
            ^
/usr/local/include/boost/variant/detail/visitation_impl.hpp:258:11: note: in instantiation of function template
      specialization
      'boost::detail::variant::visitation_impl_invoke<boost::detail::variant::invoke_visitor<boost::detail::variant::comparer<boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t,
      bool, long, unsigned long, double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>,
      boost::detail::variant::equal_comp> >, const void *, double,
      boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t, bool, long, unsigned long,
      double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>::has_fallback_type_>'
      requested here
        , BOOST_VARIANT_AUX_APPLY_VISITOR_STEP_CASE
          ^
/usr/local/include/boost/preprocessor/repetition/repeat.hpp:38:60: note: expanded from macro 'BOOST_PP_REPEAT_1'
# define BOOST_PP_REPEAT_1(c, m, d) BOOST_PP_REPEAT_1_I(c, m, d)
                                                           ^
/usr/local/include/boost/preprocessor/repetition/repeat.hpp:43:63: note: expanded from macro 'BOOST_PP_REPEAT_1_I'
# define BOOST_PP_REPEAT_1_I(c, m, d) BOOST_PP_REPEAT_1_ ## c(m, d)
                                                              ^
/usr/local/include/boost/preprocessor/repetition/repeat.hpp:71:58: note: expanded from macro 'BOOST_PP_REPEAT_1_20'
# define BOOST_PP_REPEAT_1_20(m, d) BOOST_PP_REPEAT_1_19(m, d) m(2, 19, d)
                                                         ^
note: (skipping 13 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
/usr/local/include/boost/preprocessor/repetition/repeat.hpp:57:56: note: expanded from macro 'BOOST_PP_REPEAT_1_6'
# define BOOST_PP_REPEAT_1_6(m, d) BOOST_PP_REPEAT_1_5(m, d) m(2, 5, d)
                                                       ^
/usr/local/include/boost/preprocessor/repetition/repeat.hpp:56:62: note: expanded from macro 'BOOST_PP_REPEAT_1_5'
# define BOOST_PP_REPEAT_1_5(m, d) BOOST_PP_REPEAT_1_4(m, d) m(2, 4, d)
                                                             ^
/usr/local/include/boost/variant/detail/visitation_impl.hpp:249:17: note: expanded from macro
      'BOOST_VARIANT_AUX_APPLY_VISITOR_STEP_CASE'
        return (visitation_impl_invoke)( \
                ^
/usr/local/include/boost/variant/variant.hpp:2362:33: note: in instantiation of function template specialization
      'boost::detail::variant::visitation_impl<mpl_::int_<0>,
      boost::detail::variant::visitation_impl_step<boost::mpl::v_iter<boost::mpl::v_item<blackhole::v1::attribute::view_t::function_type,
      boost::mpl::v_item<blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      boost::mpl::v_item<double, boost::mpl::v_item<unsigned long, boost::mpl::v_item<long, boost::mpl::v_item<bool,
      boost::mpl::v_item<nullptr_t, boost::mpl::vector0<mpl_::na>, 0>, 0>, 0>, 0>, 0>, 0>, 0>, 0>,
      boost::mpl::v_iter<boost::mpl::v_item<blackhole::v1::attribute::view_t::function_type,
      boost::mpl::v_item<blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      boost::mpl::v_item<double, boost::mpl::v_item<unsigned long, boost::mpl::v_item<long, boost::mpl::v_item<bool,
      boost::mpl::v_item<nullptr_t, boost::mpl::vector0<mpl_::na>, 0>, 0>, 0>, 0>, 0>, 0>, 0>, 7> >,
      boost::detail::variant::invoke_visitor<boost::detail::variant::comparer<boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t,
      bool, long, unsigned long, double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>,
      boost::detail::variant::equal_comp> >, const void *,
      boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t, bool, long, unsigned long,
      double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>::has_fallback_type_>'
      requested here
        return detail::variant::visitation_impl(
                                ^
/usr/local/include/boost/variant/variant.hpp:2387:16: note: in instantiation of function template specialization
      'boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t, bool, long, unsigned long,
      double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_>::internal_apply_visitor_impl<boost::detail::variant::invoke_visitor<boost::detail::variant::comparer<boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t,
      bool, long, unsigned long, double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>,
      boost::detail::variant::equal_comp> >, const void *>' requested here
        return internal_apply_visitor_impl(
               ^
/usr/local/include/boost/variant/variant.hpp:2411:22: note: in instantiation of function template specialization
      'boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t, bool, long, unsigned long,
      double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_>::internal_apply_visitor<boost::detail::variant::invoke_visitor<boost::detail::variant::comparer<boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t,
      bool, long, unsigned long, double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>,
      boost::detail::variant::equal_comp> > >' requested here
        return this->internal_apply_visitor(invoker);
                     ^
/usr/local/include/boost/variant/variant.hpp:2310:20: note: in instantiation of function template specialization
      'boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t, bool, long, unsigned long,
      double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_>::apply_visitor<boost::detail::variant::comparer<boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t,
      bool, long, unsigned long, double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>,
      boost::detail::variant::equal_comp> >' requested here
        return rhs.apply_visitor(visitor);
                   ^
/usr/home/username/blackhole/src/attribute.cpp:248:26: note: in instantiation of member function
      'boost::variant<boost::detail::variant::over_sequence<boost::mpl::vector<nullptr_t, bool, long, unsigned long,
      double, blackhole::v1::cpp17::basic_string_view<char, std::__1::char_traits<char> >,
      blackhole::v1::attribute::view_t::function_type, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,
      mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_,
      boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>::operator=='
      requested here
    return inner().value == other.inner().value;
                         ^
2 warnings generated.
[  6%] Building CXX object CMakeFiles/blackhole.dir/src/config/factory.cpp.o
[  9%] Building CXX object CMakeFiles/blackhole.dir/src/config/json.cpp.o
In file included from /usr/home/username/blackhole/src/config/json.cpp:8:
In file included from /usr/home/username/blackhole/include/blackhole/detail/config/json.hpp:5:
In file included from /usr/local/include/boost/lexical_cast.hpp:159:
In file included from /usr/local/include/boost/numeric/conversion/cast.hpp:33:
In file included from /usr/local/include/boost/numeric/conversion/converter.hpp:14:
/usr/local/include/boost/numeric/conversion/converter_policies.hpp:139:39: warning: dynamic exception specifications are
      deprecated [-Wdeprecated]
    virtual const char * what() const throw()
                                      ^~~~~~~
/usr/local/include/boost/numeric/conversion/converter_policies.hpp:139:39: note: use 'noexcept' instead
    virtual const char * what() const throw()
                                      ^~~~~~~
                                      noexcept
/usr/local/include/boost/numeric/conversion/converter_policies.hpp:147:39: warning: dynamic exception specifications are
      deprecated [-Wdeprecated]
    virtual const char * what() const throw()
                                      ^~~~~~~
/usr/local/include/boost/numeric/conversion/converter_policies.hpp:147:39: note: use 'noexcept' instead
    virtual const char * what() const throw()
                                      ^~~~~~~
                                      noexcept
/usr/local/include/boost/numeric/conversion/converter_policies.hpp:154:39: warning: dynamic exception specifications are
      deprecated [-Wdeprecated]
    virtual const char * what() const throw()
                                      ^~~~~~~
/usr/local/include/boost/numeric/conversion/converter_policies.hpp:154:39: note: use 'noexcept' instead
    virtual const char * what() const throw()
                                      ^~~~~~~
                                      noexcept
In file included from /usr/home/username/blackhole/src/config/json.cpp:8:
In file included from /usr/home/username/blackhole/include/blackhole/detail/config/json.hpp:5:
In file included from /usr/local/include/boost/lexical_cast.hpp:169:
In file included from /usr/local/include/boost/range/iterator_range_core.hpp:31:
In file included from /usr/local/include/boost/range/algorithm/equal.hpp:14:
In file included from /usr/local/include/boost/range/concepts.hpp:19:
/usr/local/include/boost/concept_check.hpp:883:8: warning: extra ';' after member function definition [-Wextra-semi]
      };
       ^
In file included from /usr/home/username/blackhole/src/config/json.cpp:8:
In file included from /usr/home/username/blackhole/include/blackhole/detail/config/json.hpp:5:
In file included from /usr/local/include/boost/lexical_cast.hpp:169:
/usr/local/include/boost/range/iterator_range_core.hpp:637:20: warning: parameter 'Range' not found in the function
      declaration [-Wdocumentation]
            \param Range An input range
                   ^~~~~
/usr/local/include/boost/range/iterator_range_core.hpp:637:20: note: did you mean 'r'?
            \param Range An input range
                   ^~~~~
                   r
In file included from /usr/home/username/blackhole/src/config/json.cpp:8:
In file included from /usr/home/username/blackhole/include/blackhole/detail/config/json.hpp:5:
In file included from /usr/local/include/boost/lexical_cast.hpp:170:
/usr/local/include/boost/container/container_fwd.hpp:160:5: warning: unknown command tag name
      [-Wdocumentation-unknown-command]
/// @cond
    ^
In file included from /usr/home/username/blackhole/src/config/json.cpp:8:
In file included from /usr/home/username/blackhole/include/blackhole/detail/config/json.hpp:5:
/usr/local/include/boost/lexical_cast.hpp:1707:50: warning: implicit conversion changes signedness: 'long' to 'size_t'
      (aka 'unsigned long') [-Wsign-conversion]
                end = begin + swprintf(begin, end-begin,
                              ~~~~~~~~        ~~~^~~~~~
/usr/local/include/boost/lexical_cast.hpp:1717:50: warning: implicit conversion changes signedness: 'long' to 'size_t'
      (aka 'unsigned long') [-Wsign-conversion]
                end = begin + swprintf(begin, end-begin,
                              ~~~~~~~~        ~~~^~~~~~
/usr/local/include/boost/lexical_cast.hpp:1725:50: warning: implicit conversion changes signedness: 'long' to 'size_t'
      (aka 'unsigned long') [-Wsign-conversion]
                end = begin + swprintf(begin, end-begin,
                              ~~~~~~~~        ~~~^~~~~~
In file included from /usr/home/username/blackhole/src/config/json.cpp:8:
/usr/home/username/blackhole/include/blackhole/detail/config/json.hpp:185:52: warning: will never be executed
      [-Wunreachable-code]
        throw config::type_mismatch(cursor.empty() ? "/" : cursor, expected, type());
                                                   ^
/usr/home/username/blackhole/src/config/json.cpp:34:36: warning: unused parameter 'other' [-Wunused-parameter]
factory<json_t>::factory(factory&& other) noexcept = default;
                                   ^
/usr/home/username/blackhole/src/config/json.cpp:38:43: warning: unused parameter 'other' [-Wunused-parameter]
auto factory<json_t>::operator=(factory&& other) noexcept -> factory& = default;
                                          ^
In file included from /usr/home/username/blackhole/src/config/json.cpp:8:
In file included from /usr/home/username/blackhole/include/blackhole/detail/config/json.hpp:5:
In file included from /usr/local/include/boost/lexical_cast.hpp:168:
/usr/local/include/boost/math/special_functions/fpclassify.hpp:168:18: warning: comparing floating point with == or !=
      is unsafe [-Wfloat-equal]
      return (at != 0) ? FP_SUBNORMAL : FP_ZERO;
              ~~ ^  ~
/usr/local/include/boost/math/special_functions/fpclassify.hpp:250:32: note: in instantiation of function template
      specialization 'boost::math::detail::fpclassify_imp<long double>' requested here
   return boost::math::detail::fpclassify_imp(t, generic_tag<true>());
                               ^
/usr/local/include/boost/math/special_functions/fpclassify.hpp:445:20: warning: comparing floating point with == or !=
      is unsafe [-Wfloat-equal]
            && ( x == std::numeric_limits<T>::infinity()
                 ~ ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/include/boost/math/special_functions/fpclassify.hpp:489:32: note: in instantiation of function template
      specialization 'boost::math::detail::isinf_impl<long double>' requested here
   return boost::math::detail::isinf_impl(t, generic_tag<true>());
                               ^
/usr/local/include/boost/math/special_functions/fpclassify.hpp:446:23: warning: comparing floating point with == or !=
      is unsafe [-Wfloat-equal]
                 || x == -std::numeric_limits<T>::infinity());
                    ~ ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/home/username/blackhole/src/config/json.cpp:8:
In file included from /usr/home/username/blackhole/include/blackhole/detail/config/json.hpp:5:
/usr/local/include/boost/lexical_cast.hpp:126:17: warning: definition of implicit copy constructor for
      'bad_lexical_cast' is deprecated because it has a user-declared destructor [-Wdeprecated]
        virtual ~bad_lexical_cast() BOOST_NOEXCEPT
                ^
/usr/local/include/boost/lexical_cast.hpp:2375:19: note: in instantiation of function template specialization
      'boost::throw_exception<boost::bad_lexical_cast>' requested here
                  BOOST_LCAST_THROW_BAD_CAST(Source, Target);
                  ^
/usr/local/include/boost/lexical_cast.hpp:69:5: note: expanded from macro 'BOOST_LCAST_THROW_BAD_CAST'
    throw_exception(bad_lexical_cast(typeid(Source), typeid(Target)))
    ^
/usr/local/include/boost/lexical_cast.hpp:2543:29: note: in instantiation of member function
      'boost::detail::lexical_cast_do_cast<std::__1::basic_string<char>, unsigned long>::lexical_cast_impl' requested
      here
        return caster_type::lexical_cast_impl(arg);
                            ^
/usr/home/username/blackhole/include/blackhole/detail/config/json.hpp:177:38: note: in instantiation of function template
      specialization 'boost::lexical_cast<std::__1::basic_string<char>, unsigned long>' requested here
        return cursor + "/" + boost::lexical_cast<std::string>(idx);
                                     ^
/usr/local/include/boost/exception/exception.hpp:320:9: note: implicit copy constructor for 'bad_lexical_cast' first
      required here
        error_info_injector:
        ^
16 warnings generated.
[ 12%] Building CXX object CMakeFiles/blackhole.dir/src/config/node.cpp.o
[ 15%] Building CXX object CMakeFiles/blackhole.dir/src/config/option.cpp.o
[ 18%] Building CXX object CMakeFiles/blackhole.dir/src/datetime/generator.linux.cpp.o
[ 21%] Building CXX object CMakeFiles/blackhole.dir/src/datetime/generator.other.cpp.o
[ 24%] Building CXX object CMakeFiles/blackhole.dir/src/format.cpp.o
[ 27%] Building CXX object CMakeFiles/blackhole.dir/src/formatter/json.cpp.o
In file included from /usr/home/username/blackhole/src/formatter/json.cpp:24:
In file included from /usr/home/username/blackhole/include/blackhole/detail/attribute.hpp:3:
In file included from /usr/local/include/boost/variant/variant.hpp:32:
/usr/local/include/boost/variant/detail/forced_return.hpp:53:1: warning: function 'forced_return<void>' could be
      declared with attribute 'noreturn' [-Wmissing-noreturn]
{
^
/usr/home/username/blackhole/src/formatter/json.cpp:205:7: warning: '__APPLE__' is not defined, evaluates to 0 [-Wundef]
#elif __APPLE__
      ^
/usr/home/username/blackhole/src/formatter/json.cpp:271:9: error: call to object of type
      'blackhole::v1::formatter::<anonymous>::visitor_t' is ambiguous
        visitor(value);
        ^~~~~~~
/usr/home/username/blackhole/src/formatter/json.cpp:230:13: note: in instantiation of function template specialization
      'blackhole::v1::formatter::json_t::inner_t::builder<rapidjson::GenericDocument<rapidjson::UTF8<char>,
      rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator> >
      >::apply<long long>' requested here
            apply("timestamp", timestamp);
            ^
/usr/home/username/blackhole/src/formatter/json.cpp:353:13: note: in instantiation of member function
      'blackhole::v1::formatter::json_t::inner_t::builder<rapidjson::GenericDocument<rapidjson::UTF8<char>,
      rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator> >
      >::timestamp' requested here
    builder.timestamp();
            ^
/usr/home/username/blackhole/src/formatter/json.cpp:44:10: note: candidate function
    auto operator()(bool value) -> void {
         ^
/usr/home/username/blackhole/src/formatter/json.cpp:48:10: note: candidate function
    auto operator()(std::int64_t value) -> void {
         ^
/usr/home/username/blackhole/src/formatter/json.cpp:52:10: note: candidate function
    auto operator()(std::uint64_t value) -> void {
         ^
/usr/home/username/blackhole/src/formatter/json.cpp:56:10: note: candidate function
    auto operator()(double value) -> void {
         ^
2 warnings and 1 error generated.
*** Error code 1

Stop.
make[2]: stopped in /usr/home/username/blackhole
*** Error code 1

Stop.
make[1]: stopped in /usr/home/username/blackhole
*** Error code 1

Stop.
make: stopped in /usr/home/username/blackhole

[3Hren]

Actually it's the same error as in #126. Check again please, I've updated the PR.

[abclogin]

Yes.
It is fixed.

Other error:

/usr/home/username/bh126/src/formatter/string.cpp:193:27: error: no member named
      'pthread_getname_np' in the global namespace
        const auto rc = ::pthread_getname_np(record.tid(), buffer.data()...
                        ~~^

Full log:

Scanning dependencies of target blackhole
[  2%] Building CXX object CMakeFiles/blackhole.dir/src/config/json.cpp.o
In file included from /usr/home/username/bh126/src/config/json.cpp:8:
In file included from /usr/home/username/bh126/include/blackhole/detail/config/json.hpp:5:
In file included from /usr/local/include/boost/lexical_cast.hpp:159:
In file included from /usr/local/include/boost/numeric/conversion/cast.hpp:33:
In file included from /usr/local/include/boost/numeric/conversion/converter.hpp:14:
/usr/local/include/boost/numeric/conversion/converter_policies.hpp:139:39: warning:
      dynamic exception specifications are deprecated [-Wdeprecated]
    virtual const char * what() const throw()
                                      ^~~~~~~
/usr/local/include/boost/numeric/conversion/converter_policies.hpp:139:39: note:
      use 'noexcept' instead
    virtual const char * what() const throw()
                                      ^~~~~~~
                                      noexcept
/usr/local/include/boost/numeric/conversion/converter_policies.hpp:147:39: warning:
      dynamic exception specifications are deprecated [-Wdeprecated]
    virtual const char * what() const throw()
                                      ^~~~~~~
/usr/local/include/boost/numeric/conversion/converter_policies.hpp:147:39: note:
      use 'noexcept' instead
    virtual const char * what() const throw()
                                      ^~~~~~~
                                      noexcept
/usr/local/include/boost/numeric/conversion/converter_policies.hpp:154:39: warning:
      dynamic exception specifications are deprecated [-Wdeprecated]
    virtual const char * what() const throw()
                                      ^~~~~~~
/usr/local/include/boost/numeric/conversion/converter_policies.hpp:154:39: note:
      use 'noexcept' instead
    virtual const char * what() const throw()
                                      ^~~~~~~
                                      noexcept
In file included from /usr/home/username/bh126/src/config/json.cpp:8:
In file included from /usr/home/username/bh126/include/blackhole/detail/config/json.hpp:5:
In file included from /usr/local/include/boost/lexical_cast.hpp:169:
In file included from /usr/local/include/boost/range/iterator_range_core.hpp:31:
In file included from /usr/local/include/boost/range/algorithm/equal.hpp:14:
In file included from /usr/local/include/boost/range/concepts.hpp:19:
/usr/local/include/boost/concept_check.hpp:883:8: warning: extra ';' after
      member function definition [-Wextra-semi]
      };
       ^
In file included from /usr/home/username/bh126/src/config/json.cpp:8:
In file included from /usr/home/username/bh126/include/blackhole/detail/config/json.hpp:5:
In file included from /usr/local/include/boost/lexical_cast.hpp:169:
/usr/local/include/boost/range/iterator_range_core.hpp:637:20: warning:
      parameter 'Range' not found in the function declaration [-Wdocumentation]
            \param Range An input range
                   ^~~~~
/usr/local/include/boost/range/iterator_range_core.hpp:637:20: note: did you
      mean 'r'?
            \param Range An input range
                   ^~~~~
                   r
In file included from /usr/home/username/bh126/src/config/json.cpp:8:
In file included from /usr/home/username/bh126/include/blackhole/detail/config/json.hpp:5:
In file included from /usr/local/include/boost/lexical_cast.hpp:170:
/usr/local/include/boost/container/container_fwd.hpp:160:5: warning: unknown
      command tag name [-Wdocumentation-unknown-command]
/// @cond
    ^
In file included from /usr/home/username/bh126/src/config/json.cpp:8:
In file included from /usr/home/username/bh126/include/blackhole/detail/config/json.hpp:5:
/usr/local/include/boost/lexical_cast.hpp:1707:50: warning: implicit conversion
      changes signedness: 'long' to 'size_t' (aka 'unsigned long')
      [-Wsign-conversion]
                end = begin + swprintf(begin, end-begin,
                              ~~~~~~~~        ~~~^~~~~~
/usr/local/include/boost/lexical_cast.hpp:1717:50: warning: implicit conversion
      changes signedness: 'long' to 'size_t' (aka 'unsigned long')
      [-Wsign-conversion]
                end = begin + swprintf(begin, end-begin,
                              ~~~~~~~~        ~~~^~~~~~
/usr/local/include/boost/lexical_cast.hpp:1725:50: warning: implicit conversion
      changes signedness: 'long' to 'size_t' (aka 'unsigned long')
      [-Wsign-conversion]
                end = begin + swprintf(begin, end-begin,
                              ~~~~~~~~        ~~~^~~~~~
In file included from /usr/home/username/bh126/src/config/json.cpp:8:
/usr/home/username/bh126/include/blackhole/detail/config/json.hpp:185:52: warning:
      will never be executed [-Wunreachable-code]
        throw config::type_mismatch(cursor.empty() ? "/" : cursor, expec...
                                                   ^
/usr/home/username/bh126/src/config/json.cpp:34:36: warning: unused parameter 'other'
      [-Wunused-parameter]
factory<json_t>::factory(factory&& other) noexcept = default;
                                   ^
/usr/home/username/bh126/src/config/json.cpp:38:43: warning: unused parameter 'other'
      [-Wunused-parameter]
auto factory<json_t>::operator=(factory&& other) noexcept -> factory& = default;
                                          ^
In file included from /usr/home/username/bh126/src/config/json.cpp:8:
In file included from /usr/home/username/bh126/include/blackhole/detail/config/json.hpp:5:
In file included from /usr/local/include/boost/lexical_cast.hpp:168:
/usr/local/include/boost/math/special_functions/fpclassify.hpp:168:18: warning:
      comparing floating point with == or != is unsafe [-Wfloat-equal]
      return (at != 0) ? FP_SUBNORMAL : FP_ZERO;
              ~~ ^  ~
/usr/local/include/boost/math/special_functions/fpclassify.hpp:250:32: note: in
      instantiation of function template specialization
      'boost::math::detail::fpclassify_imp<long double>' requested here
   return boost::math::detail::fpclassify_imp(t, generic_tag<true>());
                               ^
/usr/local/include/boost/math/special_functions/fpclassify.hpp:445:20: warning:
      comparing floating point with == or != is unsafe [-Wfloat-equal]
            && ( x == std::numeric_limits<T>::infinity()
                 ~ ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/include/boost/math/special_functions/fpclassify.hpp:489:32: note: in
      instantiation of function template specialization
      'boost::math::detail::isinf_impl<long double>' requested here
   return boost::math::detail::isinf_impl(t, generic_tag<true>());
                               ^
/usr/local/include/boost/math/special_functions/fpclassify.hpp:446:23: warning:
      comparing floating point with == or != is unsafe [-Wfloat-equal]
                 || x == -std::numeric_limits<T>::infinity());
                    ~ ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/home/username/bh126/src/config/json.cpp:8:
In file included from /usr/home/username/bh126/include/blackhole/detail/config/json.hpp:5:
/usr/local/include/boost/lexical_cast.hpp:126:17: warning: definition of
      implicit copy constructor for 'bad_lexical_cast' is deprecated because it
      has a user-declared destructor [-Wdeprecated]
        virtual ~bad_lexical_cast() BOOST_NOEXCEPT
                ^
/usr/local/include/boost/lexical_cast.hpp:2375:19: note: in instantiation of
      function template specialization
      'boost::throw_exception<boost::bad_lexical_cast>' requested here
                  BOOST_LCAST_THROW_BAD_CAST(Source, Target);
                  ^
/usr/local/include/boost/lexical_cast.hpp:69:5: note: expanded from macro
      'BOOST_LCAST_THROW_BAD_CAST'
    throw_exception(bad_lexical_cast(typeid(Source), typeid(Target)))
    ^
/usr/local/include/boost/lexical_cast.hpp:2543:29: note: in instantiation of
      member function
      'boost::detail::lexical_cast_do_cast<std::__1::basic_string<char>,
      unsigned long>::lexical_cast_impl' requested here
        return caster_type::lexical_cast_impl(arg);
                            ^
/usr/home/username/bh126/include/blackhole/detail/config/json.hpp:177:38: note: in
      instantiation of function template specialization
      'boost::lexical_cast<std::__1::basic_string<char>, unsigned long>'
      requested here
        return cursor + "/" + boost::lexical_cast<std::string>(idx);
                                     ^
/usr/local/include/boost/exception/exception.hpp:320:9: note: implicit copy
      constructor for 'bad_lexical_cast' first required here
        error_info_injector:
        ^
16 warnings generated.
[  5%] Building CXX object CMakeFiles/blackhole.dir/src/config/node.cpp.o
[  8%] Building CXX object CMakeFiles/blackhole.dir/src/config/option.cpp.o
[ 11%] Building CXX object CMakeFiles/blackhole.dir/src/datetime/generator.linux.cpp.o
[ 14%] Building CXX object CMakeFiles/blackhole.dir/src/datetime/generator.other.cpp.o
[ 17%] Building CXX object CMakeFiles/blackhole.dir/src/format.cpp.o
[ 20%] Building CXX object CMakeFiles/blackhole.dir/src/formatter/json.cpp.o
In file included from /usr/home/username/bh126/src/formatter/json.cpp:24:
In file included from /usr/home/username/bh126/include/blackhole/detail/attribute.hpp:3:
In file included from /usr/local/include/boost/variant/variant.hpp:32:
/usr/local/include/boost/variant/detail/forced_return.hpp:53:1: warning:
      function 'forced_return<void>' could be declared with attribute 'noreturn'
      [-Wmissing-noreturn]
{
^
/usr/home/username/bh126/src/formatter/json.cpp:205:7: warning: '__APPLE__' is not
      defined, evaluates to 0 [-Wundef]
#elif __APPLE__
      ^
2 warnings generated.
[ 23%] Building CXX object CMakeFiles/blackhole.dir/src/formatter/mod.cpp.o
[ 26%] Building CXX object CMakeFiles/blackhole.dir/src/formatter/string.cpp.o
In file included from /usr/home/username/bh126/src/formatter/string.cpp:1:
/usr/home/username/bh126/include/blackhole/formatter/string.hpp:54:6: warning:
      '\param' command used in a comment that is not attached to a function
      declaration [-Wdocumentation]
/// \param severity an integer representation of current log severity.
     ^~~~~
/usr/home/username/bh126/include/blackhole/formatter/string.hpp:55:6: warning:
      '\param' command used in a comment that is not attached to a function
      declaration [-Wdocumentation]
/// \param spec the format specification as it was provided with the ini...
     ^~~~~
/usr/home/username/bh126/include/blackhole/formatter/string.hpp:56:6: warning:
      '\param' command used in a comment that is not attached to a function
      declaration [-Wdocumentation]
/// \param writer result writer.
     ^~~~~
In file included from /usr/home/username/bh126/src/formatter/string.cpp:8:
In file included from /usr/local/include/boost/variant/variant.hpp:32:
/usr/local/include/boost/variant/detail/forced_return.hpp:53:1: warning:
      function 'forced_return<void>' could be declared with attribute 'noreturn'
      [-Wmissing-noreturn]
{
^
/usr/home/username/bh126/src/formatter/string.cpp:186:7: warning: '__APPLE__' is not
      defined, evaluates to 0 [-Wundef]
#elif __APPLE__
      ^
/usr/home/username/bh126/src/formatter/string.cpp:179:43: warning: unused parameter
      'token' [-Wunused-parameter]
    auto operator()(const ph::thread<id>& token) const -> void {
                                          ^
/usr/home/username/bh126/src/formatter/string.cpp:179:64: warning: function
      'operator()' could be declared with attribute 'noreturn'
      [-Wmissing-noreturn]
    auto operator()(const ph::thread<id>& token) const -> void {
                                                               ^
/usr/home/username/bh126/src/formatter/string.cpp:183:44: warning: unused parameter
      'token' [-Wunused-parameter]
    auto operator()(const ph::thread<hex>& token) const -> void {
                                           ^
/usr/home/username/bh126/src/formatter/string.cpp:193:27: error: no member named
      'pthread_getname_np' in the global namespace
        const auto rc = ::pthread_getname_np(record.tid(), buffer.data()...
                        ~~^
8 warnings and 1 error generated.
*** Error code 1

Stop.
make[2]: stopped in /usr/home/username/bh126
*** Error code 1

Stop.
make[1]: stopped in /usr/home/username/bh126
*** Error code 1

Stop.
make: stopped in /usr/home/username/bh126

[3Hren]

Well, this may be tricky. I'm not sure of FreeBSD pthread support, because this function is not portable at all.

Can you just try to add #include <pthread.h> at top of "src/formatter/string.cpp"?

[abclogin]

Can you just try to add #include <pthread.h> at top of "src/formatter/string.cpp"?

I did it. Same error.

I found:
FreeBSD contains pthread support in standard libc.
But FreeBSD contains not pthread_getname_np:
https://www.gnu.org/software/gnulib/manual/html_node/pthread_005fgetname_005fnp.html

http://www.mzan.com/article/2369738-can-i-set-the-name-of-a-thread-in-pthreads-linux.shtml

#include <pthread.h> 
// or <pthread_np.h> ? 
// Linux, NetBSD: 
int pthread_getname_np(pthread_t th, char *buf, size_t len); 
// some implementations don't have a safe buffer (see MKS/IBM below) 
int pthread_getname_np(pthread_t thread, const char **name); 
int pthread_getname_np(pthread_t thread, char *name); 
// FreeBSD & OpenBSD: dont' seem to have getname/get_name equivalent? 
// but I'd imagine there's some other mechanism to read it directly for say gdb 
// Mac OS X: 
int pthread_getname_np(pthread_t, char*, size_t);

FreeBSD contains pthread_set_name_np function only:

#include <pthread.h>  // or maybe <pthread_np.h> for some OSes

// Linux
int pthread_setname_np(pthread_t thread, const char *name);

// NetBSD: name + arg work like printf(name, arg)
int pthread_setname_np(pthread_t thread, const char *name, void *arg);

// FreeBSD & OpenBSD: function name is slightly different, and has no return value
void pthread_set_name_np(pthread_t tid, const char *name);

// Mac OS X: must be set from within the thread (can't specify thread ID)
int pthread_setname_np(const char*);

[3Hren]

Is there anything with similar functionality?

[abclogin]

LLDB (from LLVM) use the workaround for FreeBSD:

It is used here:
https://github.com/freebsd/freebsd/blob/af3e10e5a78d3af8cef6088748978c6c612757f0/contrib/llvm/tools/lldb/source/Host/freebsd/ThisThread.cpp

It is implemented here:
https://github.com/freebsd/freebsd/blob/af3e10e5a78d3af8cef6088748978c6c612757f0/contrib/llvm/tools/lldb/source/Host/freebsd/HostThreadFreeBSD.cpp

[3Hren]

Okay, it takes significant time for me to configure FreeBSD virtual machine to be able to declare its support. Since, PR's are welcome, you can speedup the process.