*Hi Tiago,*
*I tried to install graph-tool on macOS again and non of port install py-graph-tool or brew install graph-tool works on my laptop and I get **this error:* Segmentation fault: 11 *Then I tried to download the source and I ran:* ./configure CPPFLAGS="-I/usr/local/Cellar/py2cairo/1.17.1/include/" --with-cgal=/usr/local/Cellar/cgal/ *and then* make install *and I got this error message:* */usr/local/include/CGAL/internal/Triangulation_ds_circulators_3.h:181:1:* *note: *candidate: '*template<class Tds_> bool CGAL::internal::operator==(typename Tds_::Cell_handle, CGAL::internal::Triangulation_ds_cell_circulator_3<Tds_>)*' *operator*==(typename Tds_::Cell_handle ch, Triangulation_ds_cell_circulator_3<Tds_> cc) *^~~~~~~~* */usr/local/include/CGAL/internal/Triangulation_ds_circulators_3.h:181:1:* *note: * template argument deduction/substitution failed: In file included from */opt/local/include/gcc8/c++/memory:76*, from */usr/local/include/boost/config/no_tr1/memory.hpp:21* , from */usr/local/include/boost/get_pointer.hpp:14*, from */usr/local/include/boost/python/object/pointer_holder.hpp:11*, from */usr/local/include/boost/python/to_python_indirect.hpp:10*, from */usr/local/include/boost/python/converter/arg_to_python.hpp:10*, from */usr/local/include/boost/python/call.hpp:15*, from */usr/local/include/boost/python/object_core.hpp:14*, from */usr/local/include/boost/python/object.hpp:9*, from *../../../src/graph/graph.hh:23*, from *graph_triangulation.cc:23*: */opt/local/include/gcc8/c++/bits/stl_function.h:356:20:* *note: * '*CGAL::Triangulation_vertex_base_3<CGAL::Epick, CGAL::Triangulation_ds_vertex_base_3<CGAL::Triangulation_data_structure_3<CGAL::Triangulation_vertex_base_3<CGAL::Epick, CGAL::Triangulation_ds_vertex_base_3<void> >, CGAL::Delaunay_triangulation_cell_base_3<CGAL::Epick, CGAL::Triangulation_cell_base_3<CGAL::Epick, CGAL::Triangulation_ds_cell_base_3<void> > >, CGAL::Sequential_tag> > >*' is not derived from ' *CGAL::internal::Triangulation_ds_cell_circulator_3<Tds_>*' { return *__x == __y*; } *~~~~^~~~~~* make[3]: *** [graph_triangulation.lo] Error 1 make[2]: *** [install-recursive] Error 1 make[1]: *** [install-recursive] Error 1 make: *** [install-recursive] Error 1 It is really annoying because non of these approaches work. I also would like to install new version of graph tool on python 2.7 and it fails. any suggestion? Thanks in advance. Best, Zahra
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