Hi, I downloaded boost_1_35_0 and tried to compile graphviz.cpp using the new spirit parser. Any suggestions? Here is the error I got: g++-4.1.2 -I../../../ -fpermissive -ftemplate-depth-128 -DBOOST_GRAPH_READ_GRAPHVIZ_ITERATORS graphviz.cpp /tmp/ccfGYuqq.o: In function `bool boost::read_graphviz<boost::adjacency_list<boost::vecS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_name_t, std::basic_string<char, std::char_traits<char>, std::allocator<char>
, boost::no_property>, boost::property<boost::edge_weight_t, double, boost::no_property>, boost::no_property, boost::listS> (std::basic_istream<char, std::char_traits<char> >&, boost::adjacency_list<boost::vecS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_name_t, std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::no_property>, boost::property<boost::edge_weight_t, double, boost::no_property>, boost::no_property, boost::listS>&, boost::dynamic_properties&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)': graphviz.cpp:(.text._ZN5boost13read_graphvizINS_14adjacency_listINS_4vecSES2_NS_11undirectedSENS_8propertyINS_13vertex_name_tESsNS_11no_propertyEEENS4_INS_13edge_weight_tEdS6_EES6_NS_5listSEEEEEbRSiRT_RNS_18dynamic_propertiesERKSs[bool boost::read_graphviz<boost::adjacency_list<boost::vecS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_name_t, std::basic_string<char, std::char_traits<char>, std::allocator<char> , boost::no_property>, boost::property<boost::edge_weight_t, double, boost::no_property>, boost::no_property, boost::listS> (std::basic_istream<char, std::char_traits<char> >&, boost::adjacency_list<boost::vecS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_name_t, std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::no_property>, boost::property<boost::edge_weight_t, double, boost::no_property>, boost::no_property, boost::listS>&, boost::dynamic_properties&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)]+0x52): undefined reference to `boost::detail::graph::read_graphviz(std::basic_istream<char, std::char_traits<char> >&, boost::detail::graph::mutate_graph&)'
collect2: ld returned 1 exit status
-- Regards Rajesh