I am build graphs-tools 2.31 using g++ 8.3.0. It floods me with warnings like the following: /users/lisergey/include/boost/bind.hpp:41:1: note: #pragma message: The practice of declaring the Bind placeholders (_1, _2, ...) in the global namespace is deprecated. Please use <boost/bind/bind.hpp> + using namespace boost::placeholders, or define BOOST_BIND_GLOBAL_PLACEHOLDERS to retain the current behavior. ) ^ /users/lisergey/include/boost/python/extract.hpp:185:11: warning: '*((void*)&<anonymous> +24)' may be used uninitialized in this function [-Wmaybe-uninitialized] ); ^ /users/lisergey/include/boost/python/extract.hpp: In constructor 'WrappedState<Graph, State>::WrappedState(Graph&, WrappedState<Graph, State>::smap_t, WrappedState<Graph, State>::smap_t, boost::python::dict, rng_t&) [with Graph = boost::filt_graph<boost::adj_list<long unsigned int>, graph_tool::detail::MaskFilter<boost::unchecked_vector_property_map<unsigned char, boost::adj_edge_index_property_map<long unsigned int> > >, graph_tool::detail::MaskFilter<boost::unchecked_vector_property_map<unsigned char, boost::typed_identity_property_map<long unsigned int> > > >; State = graph_tool::majority_voter_state]': -- Sent from: http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com/