Sol file doesn't compile? Hm.

main.cpp

#include <iostream>
#include <string>
#include <sstream>
#include "lua.hpp"
#include "sol.hpp"

#include "Flexiglass.hpp"

template <typename T>
T unpack (boost::any& b)
{
	T result = boost::any_cast<T>(b);
	return result;
}

int main()
{
	sol::state lua;
	lua.open_libraries(sol::lib::base);
	
	//Set boost::any object to a std::string value and pass it to Lua.
	boost::any obj(std::string("hello"));
	
	//This syntax should work here. I did a test case with a templated function.
	lua.set_function("unpack", unpack<std::string>);
	
	//Contents:
	//print('Hello World!')
	//unpack(b)
	lua.open_file("test.lua");
	
	//The program outputs "Hello World"
	//But fails at the unpack() method.
	
	return 0;
}