This small program compiles nicely with g++ 4.6.4 and -std=c++98 and boost 1.52.0: #include <iostream> #include <boost/math/tools/roots.hpp> #include <boost/tr1/tuple.hpp> std::tr1::tuple<double, double> f(double x) { return std::tr1::tuple<double, double>(x, 1.); } int main() { std::cout<<boost::math::tools::newton_raphson_iterate(f, 10., -9., +20., 10); return 0; } Now, I would like to be able to compile that program also with g++ 4.8.1 and -std=c++11 (I changed also boost to 1.53.0). If I do not change anything, std::tr1::tuple is replaced by std::tuple and I get the following error (see attached log): path/to/boost/include/boost/math/tools/roots.hpp:202:32: error: no match for 'operator=' (operand types are 'std::tuple<double&, double&>' and 'boost::fusion::tuple<double, double>') I tried to replace <boost/tr1/tuple.hpp> and std::tr1::tuple by <boost/tuple/tuple.hpp> and boost::tuple without any success. What should I do to have the same code compile with both -std=c++98 and -std=c++11? Regards, Frédéric