Examples do not build with gcc version 4.9.2

[seken]

Tried -std=c++14 and it still gives errors like this

/home/markit/vpp/examples/../vpp/core/pixel_wise.hpp: In instantiation of ‘auto vpp::pixel_wise_impl<OPTS, Params>::make_orders() [with OPTS = iod::sio<>; Params = {vpp::imageNd<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1>, 2u>&}]’:
/home/markit/vpp/examples/../vpp/core/pixel_wise.hpp:154:33:   required from ‘auto vpp::pixel_wise_impl<OPTS, Params>::run(F, std::index_sequence<I ...>) [with F = paint(std::vector<vpp::keypoint_trajectory>&, vpp::image2d<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1> >&)::<lambda(vpp::vuchar4&)>; long unsigned int ...I = {0ul}; OPTS = iod::sio<>; Params = {vpp::imageNd<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1>, 2u>&}; std::index_sequence<I ...> = std::integer_sequence<long unsigned int, 0ul>]’
/home/markit/vpp/examples/../vpp/core/pixel_wise.hpp:193:30:   required from ‘vpp::pixel_wise_impl<OPTS, Params>::operator|(F)::<lambda(auto:37)> [with auto:37 = paint(std::vector<vpp::keypoint_trajectory>&, vpp::image2d<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1> >&)::<lambda(vpp::vuchar4&)>; F = paint(std::vector<vpp::keypoint_trajectory>&, vpp::image2d<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1> >&)::<lambda(vpp::vuchar4&)>; OPTS = iod::sio<>; Params = {vpp::imageNd<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1>, 2u>&}]’
/home/markit/vpp/externals/iod/iod/utils.hh:14:43:   required from ‘decltype(auto) iod::static_if_<true>::operator()(F, G, A&& ...) [with F = vpp::pixel_wise_impl<OPTS, Params>::operator|(F) [with F = paint(std::vector<vpp::keypoint_trajectory>&, vpp::image2d<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1> >&)::<lambda(vpp::vuchar4&)>; OPTS = iod::sio<>; Params = {vpp::imageNd<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1>, 2u>&}]::<lambda(auto:37)>; G = vpp::pixel_wise_impl<OPTS, Params>::operator|(F) [with F = paint(std::vector<vpp::keypoint_trajectory>&, vpp::image2d<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1> >&)::<lambda(vpp::vuchar4&)>; OPTS = iod::sio<>; Params = {vpp::imageNd<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1>, 2u>&}]::<lambda(auto:38)>; A = {paint(std::vector<vpp::keypoint_trajectory>&, vpp::image2d<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1> >&)::<lambda(vpp::vuchar4&)>&}]’
/home/markit/vpp/externals/iod/iod/utils.hh:31:64:   required from ‘decltype(auto) iod::static_if(F, G, A&& ...) [with bool C = true; F = vpp::pixel_wise_impl<OPTS, Params>::operator|(F) [with F = paint(std::vector<vpp::keypoint_trajectory>&, vpp::image2d<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1> >&)::<lambda(vpp::vuchar4&)>; OPTS = iod::sio<>; Params = {vpp::imageNd<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1>, 2u>&}]::<lambda(auto:37)>; G = vpp::pixel_wise_impl<OPTS, Params>::operator|(F) [with F = paint(std::vector<vpp::keypoint_trajectory>&, vpp::image2d<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1> >&)::<lambda(vpp::vuchar4&)>; OPTS = iod::sio<>; Params = {vpp::imageNd<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1>, 2u>&}]::<lambda(auto:38)>; A = {paint(std::vector<vpp::keypoint_trajectory>&, vpp::image2d<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1> >&)::<lambda(vpp::vuchar4&)>&}]’
/home/markit/vpp/examples/../vpp/core/pixel_wise.hpp:212:13:   required from ‘auto vpp::pixel_wise_impl<OPTS, Params>::operator|(F) [with F = paint(std::vector<vpp::keypoint_trajectory>&, vpp::image2d<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1> >&)::<lambda(vpp::vuchar4&)>; OPTS = iod::sio<>; Params = {vpp::imageNd<Eigen::Matrix<unsigned char, 4, 1, 0, 4, 1>, 2u>&}]’
/home/markit/vpp/examples/video_extruder_paint.cc:25:3:   required from here
/home/markit/vpp/examples/../vpp/core/pixel_wise.hpp:143:44: error: use of ‘template<class ... T> auto iod::D(T&& ...)’ before deduction of ‘auto’
           [] () { return _left_to_right; }));