Build errors compiling with header only mode

[mr-pandabear]

I'm trying to build the library in header only mode, when I compile I get the following error:

../external/eosio/vm/host_function.hpp:382:66: error: no member named 'apply' in
      'eosio::vm::detail::no_viable_overload_of_from_wasm<const std::__1::basic_string<char> &>'
            return detail::make_value_getter<S, Cons>().template apply<S>(alloc, static_cast<T&&>(val), tail);

I can't figure out what the issue is