CGAL users discussion list

[Ruud Vlaming <>]

Hello Guys,

When trying to compile open-scad, (which makes use of cgal) 
for c++11 on mac i get an error. Hopefully you can help.

versions:
  mac:    10.8.3
  boost:  1.53.0 (via macports)
  cgal    4.2 (via macports)
  clang:  Apple LLVM version 4.2 (clang-425.0.27) (based on LLVM 3.2svn)

compile options (generated by qmake => cmake)
  /usr/bin/clang++ 
    -c 
    -pipe 
    -fno-strict-aliasing 
    -std=c++11 
    -stdlib=libc++ 
    -frounding-math 
    -O2 
    -arch x86_64 
    -Xarch_x86_64    
    -mmacosx-version-min=10.8 
    -Wall 
    -W

(see below for complete compile instruction and results)

cgal related error:
  
  no viable conversion from 'Line_face_circulator'
  in lines 544, 577 and 593 of the file 
  CGAL/Constrained_triangulation

Any idea how i can resolve this? Thanks for any help.

Ruud


=======================================================

complete first error message:

/opt/local/include/CGAL/Constrained_triangulation_2.h:544:32: error: no 
viable conversion from 'Line_face_circulator' (aka 
'Triangulation_line_face_circulator_2<Self>') to 'value_type' (aka 
'CGAL::internal::CC_iterator<CGAL::Compact_container<CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, 
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, 
CGAL::Triangulation_ds_face_base_2<CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_vertex_base_2<void> >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, 
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > > > > >, CGAL::Default>, 
false>')

and comparable error occurs in lines 577, 593


=======================================================

complete compile instruction:


/usr/bin/clang++ -c -pipe -fno-strict-aliasing -std=c++11 -stdlib=libc++ 
-frounding-math -O2 -arch x86_64 -Xarch_x86_64 -mmacosx-version-min=10.8 
-Wall -W -DOPENSCAD_VERSION=2013.05.19 -DOPENSCAD_YEAR=2013.0 
-DOPENSCAD_MONTH=05.0 -DOPENSCAD_DAY=19.0 -DDEBUG -DENABLE_MDI 
-DUSE_PROGRESSWIDGET -DENABLE_CGAL -DENABLE_OPENCSG -DQT_NO_DEBUG 
-DQT_OPENGL_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED 
-I/opt/local/share/qt4/mkspecs/macx-g++ -I. -Iobjects 
-I/opt/local/Library/Frameworks/QtCore.framework/Versions/4/Headers 
-I/opt/local/Library/Frameworks/QtGui.framework/Versions/4/Headers 
-I/opt/local/Library/Frameworks/QtOpenGL.framework/Versions/4/Headers -Isrc 
-I/opt/local/Library/Frameworks/QtOpenGL.framework/Versions/4/Headers 
-I/opt/local/Library/Frameworks/QtGui.framework/Versions/4/Headers 
-I/opt/local/include/eigen3 
-I/opt/local/Library/Frameworks/QtCore.framework/Versions/4/Headers 
-I/opt/local/include/eigen3 -I/opt/local/include 
-I/System/Library/Frameworks/OpenGL.framework/Versions/A/He
 a
ders -I/System/Library/Frameworks/AGL.framework/Headers -Iobjects 
-I/opt/local/include -F/opt/local/Library/Frameworks -F/opt/local/lib -o 
objects/export.o src/export.cc
clang: warning: argument unused during compilation: '-frounding-math'
In file included from src/export.cc:33:
In file included from src/CGAL_Nef_polyhedron.h:4:
In file included from src/cgalfwd.h:5:
In file included from src/cgal.h:40:
In file included from /opt/local/include/CGAL/exceptions.h:28:
In file included from /opt/local/include/boost/lexical_cast.hpp:168:
/opt/local/include/boost/math/special_functions/fpclassify.hpp:98:29: 
warning: unused parameter 't' [-Wunused-parameter]
inline bool is_nan_helper(T t, const boost::true_type&)
                            ^
In file included from src/export.cc:33:
In file included from src/CGAL_Nef_polyhedron.h:4:
In file included from src/cgalfwd.h:5:
In file included from src/cgal.h:29:
In file included from /opt/local/include/CGAL/Nef_polyhedron_3.h:71:
/opt/local/include/CGAL/Constrained_triangulation_2.h:544:32: error: no 
viable conversion from 'Line_face_circulator' (aka 
'Triangulation_line_face_circulator_2<Self>') to
      'value_type' (aka 
'CGAL::internal::CC_iterator<CGAL::Compact_container<CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
      >, 
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_ds_face_base_2<CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      CGAL::Triangulation_ds_vertex_base_2<void> >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > > > > >, CGAL::Default>, 
false>')
  intersected_faces.push_front(current_face);
                               ^~~~~~~~~~~~
/opt/local/include/CGAL/Constrained_triangulation_2.h:479:24: note: in 
instantiation of member function
      
'CGAL::Constrained_triangulation_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_vertex_base_2<void>
      >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > >,
      CGAL::No_intersection_tag>::find_intersected_faces' requested here
  bool intersection  = find_intersected_faces( vaa, vbb,
                       ^
/opt/local/include/CGAL/Constrained_triangulation_2.h:449:20: note: in 
instantiation of member function
      
'CGAL::Constrained_triangulation_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_vertex_base_2<void>
      >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > >,
      CGAL::No_intersection_tag>::insert_constraint' requested here
  if ( va != vb)   insert_constraint(va,vb);
                   ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:633:9: note: in instantiation of 
member function
      
'CGAL::Constrained_triangulation_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_vertex_base_2<void>
      >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > >,
      CGAL::No_intersection_tag>::insert_constraint' requested here
            ct.insert_constraint(sfc->source()->source()->point(),
               ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:752:33: note: in instantiation of 
member function 'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items,
      
bool>::Triangulation_handler2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 > >::Triangulation_handler2' requested here
            Triangulation_handler2<YZ> th(f);
                                       ^
/opt/local/include/CGAL/Nef_3/SNC_const_decorator.h:580:9: note: in 
instantiation of member function 
'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, CGAL::SNC_indexed_items,
      
bool>::Build_polyhedron<CGAL::HalfedgeDS_default<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::I_Polyhedron_derived_items_3<CGAL::Polyhedron_items_3>, 
std::__1::allocator<int> >
      >::Visitor::visit' requested here
      V.visit(f); // report facet
        ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:825:8: note: in instantiation of 
function template specialization
      
'CGAL::SNC_const_decorator<CGAL::SNC_structure<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items, bool>
      
>::visit_shell_objects<CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items,
      
bool>::Build_polyhedron<CGAL::HalfedgeDS_default<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::I_Polyhedron_derived_items_3<CGAL::Polyhedron_items_3>, 
std::__1::allocator<int> >
      >::Visitor>' requested here
          scd.visit_shell_objects(SFace_const_handle(c->shells_begin()),V);
              ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:1043:33: note: in instantiation of 
member function 'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items,
      
bool>::Build_polyhedron<CGAL::HalfedgeDS_default<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::I_Polyhedron_derived_items_3<CGAL::Polyhedron_items_3>, 
std::__1::allocator<int> >
      >::operator()' requested here
   Build_polyhedron<HalfedgeDS> bp(*this);    
                                ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:1035:4: note: in instantiation of 
function template specialization 
'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>,
      CGAL::SNC_indexed_items, 
bool>::convert_to_polyhedron<CGAL::Polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::Polyhedron_items_3, HalfedgeDS_default, std::__1::allocator<int>
      > >' requested here
   convert_to_polyhedron(P);
   ^
src/export.cc:45:14: note: in instantiation of function template 
specialization 'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items,
      
bool>::convert_to_Polyhedron<CGAL::Polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::Polyhedron_items_3, HalfedgeDS_default, std::__1::allocator<int> > >' 
requested here
        root_N->p3->convert_to_Polyhedron(P);
                    ^
/opt/local/include/CGAL/Compact_container.h:758:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'Nullptr_t' (aka 
'const void *') for 1st argument; take the address of the argument with &
    CC_iterator (Nullptr_t CGAL_assertion_code(n))
    ^
/opt/local/include/CGAL/Compact_container.h:745:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'const iterator 
&' (aka 'const CC_iterator<Self, false> &') for 1st argument
    CC_iterator (const iterator &it)
    ^
/opt/local/include/CGAL/Triangulation_line_face_circulator_2.h:96:3: note: 
candidate function
  operator const Face_handle() const {return pos;}
  ^
/usr/bin/../lib/c++/v1/list:919:34: note: passing argument to parameter '__x' 
here
    void push_front(value_type&& __x);
                                 ^
In file included from src/export.cc:33:
In file included from src/CGAL_Nef_polyhedron.h:4:
In file included from src/cgalfwd.h:5:
In file included from src/cgal.h:29:
In file included from /opt/local/include/CGAL/Nef_polyhedron_3.h:71:
/opt/local/include/CGAL/Constrained_triangulation_2.h:577:31: error: no 
viable conversion from 'Line_face_circulator' (aka 
'Triangulation_line_face_circulator_2<Self>') to
      'value_type' (aka 
'CGAL::internal::CC_iterator<CGAL::Compact_container<CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
      >, 
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_ds_face_base_2<CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      CGAL::Triangulation_ds_vertex_base_2<void> >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > > > > >, CGAL::Default>, 
false>')
        intersected_faces.push_front(current_face);
                                     ^~~~~~~~~~~~
/opt/local/include/CGAL/Compact_container.h:758:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'Nullptr_t' (aka 
'const void *') for 1st argument; take the address of the argument with &
    CC_iterator (Nullptr_t CGAL_assertion_code(n))
    ^
/opt/local/include/CGAL/Compact_container.h:745:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'const iterator 
&' (aka 'const CC_iterator<Self, false> &') for 1st argument
    CC_iterator (const iterator &it)
    ^
/opt/local/include/CGAL/Triangulation_line_face_circulator_2.h:96:3: note: 
candidate function
  operator const Face_handle() const {return pos;}
  ^
/usr/bin/../lib/c++/v1/list:919:34: note: passing argument to parameter '__x' 
here
    void push_front(value_type&& __x);
                                 ^
In file included from src/export.cc:33:
In file included from src/CGAL_Nef_polyhedron.h:4:
In file included from src/cgalfwd.h:5:
In file included from src/cgal.h:29:
In file included from /opt/local/include/CGAL/Nef_polyhedron_3.h:71:
/opt/local/include/CGAL/Constrained_triangulation_2.h:593:32: error: no 
viable conversion from 'Line_face_circulator' (aka 
'Triangulation_line_face_circulator_2<Self>') to
      'value_type' (aka 
'CGAL::internal::CC_iterator<CGAL::Compact_container<CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
      >, 
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_ds_face_base_2<CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      CGAL::Triangulation_ds_vertex_base_2<void> >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_yz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > > > > >, CGAL::Default>, 
false>')
  intersected_faces.push_front(current_face);
                               ^~~~~~~~~~~~
/opt/local/include/CGAL/Compact_container.h:758:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'Nullptr_t' (aka 
'const void *') for 1st argument; take the address of the argument with &
    CC_iterator (Nullptr_t CGAL_assertion_code(n))
    ^
/opt/local/include/CGAL/Compact_container.h:745:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'const iterator 
&' (aka 'const CC_iterator<Self, false> &') for 1st argument
    CC_iterator (const iterator &it)
    ^
/opt/local/include/CGAL/Triangulation_line_face_circulator_2.h:96:3: note: 
candidate function
  operator const Face_handle() const {return pos;}
  ^
/usr/bin/../lib/c++/v1/list:919:34: note: passing argument to parameter '__x' 
here
    void push_front(value_type&& __x);
                                 ^
In file included from src/export.cc:33:
In file included from src/CGAL_Nef_polyhedron.h:4:
In file included from src/cgalfwd.h:5:
In file included from src/cgal.h:29:
In file included from /opt/local/include/CGAL/Nef_polyhedron_3.h:71:
/opt/local/include/CGAL/Constrained_triangulation_2.h:544:32: error: no 
viable conversion from 'Line_face_circulator' (aka 
'Triangulation_line_face_circulator_2<Self>') to
      'value_type' (aka 
'CGAL::internal::CC_iterator<CGAL::Compact_container<CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
      >, 
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_ds_face_base_2<CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      CGAL::Triangulation_ds_vertex_base_2<void> >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > > > > >, CGAL::Default>, 
false>')
  intersected_faces.push_front(current_face);
                               ^~~~~~~~~~~~
/opt/local/include/CGAL/Constrained_triangulation_2.h:479:24: note: in 
instantiation of member function
      
'CGAL::Constrained_triangulation_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_vertex_base_2<void>
      >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > >,
      CGAL::No_intersection_tag>::find_intersected_faces' requested here
  bool intersection  = find_intersected_faces( vaa, vbb,
                       ^
/opt/local/include/CGAL/Constrained_triangulation_2.h:449:20: note: in 
instantiation of member function
      
'CGAL::Constrained_triangulation_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_vertex_base_2<void>
      >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > >,
      CGAL::No_intersection_tag>::insert_constraint' requested here
  if ( va != vb)   insert_constraint(va,vb);
                   ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:633:9: note: in instantiation of 
member function
      
'CGAL::Constrained_triangulation_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_vertex_base_2<void>
      >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > >,
      CGAL::No_intersection_tag>::insert_constraint' requested here
            ct.insert_constraint(sfc->source()->source()->point(),
               ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:755:33: note: in instantiation of 
member function 'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items,
      
bool>::Triangulation_handler2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 > >::Triangulation_handler2' requested here
            Triangulation_handler2<XZ> th(f);
                                       ^
/opt/local/include/CGAL/Nef_3/SNC_const_decorator.h:580:9: note: in 
instantiation of member function 
'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, CGAL::SNC_indexed_items,
      
bool>::Build_polyhedron<CGAL::HalfedgeDS_default<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::I_Polyhedron_derived_items_3<CGAL::Polyhedron_items_3>, 
std::__1::allocator<int> >
      >::Visitor::visit' requested here
      V.visit(f); // report facet
        ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:825:8: note: in instantiation of 
function template specialization
      
'CGAL::SNC_const_decorator<CGAL::SNC_structure<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items, bool>
      
>::visit_shell_objects<CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items,
      
bool>::Build_polyhedron<CGAL::HalfedgeDS_default<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::I_Polyhedron_derived_items_3<CGAL::Polyhedron_items_3>, 
std::__1::allocator<int> >
      >::Visitor>' requested here
          scd.visit_shell_objects(SFace_const_handle(c->shells_begin()),V);
              ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:1043:33: note: in instantiation of 
member function 'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items,
      
bool>::Build_polyhedron<CGAL::HalfedgeDS_default<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::I_Polyhedron_derived_items_3<CGAL::Polyhedron_items_3>, 
std::__1::allocator<int> >
      >::operator()' requested here
   Build_polyhedron<HalfedgeDS> bp(*this);    
                                ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:1035:4: note: in instantiation of 
function template specialization 
'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>,
      CGAL::SNC_indexed_items, 
bool>::convert_to_polyhedron<CGAL::Polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::Polyhedron_items_3, HalfedgeDS_default, std::__1::allocator<int>
      > >' requested here
   convert_to_polyhedron(P);
   ^
src/export.cc:45:14: note: in instantiation of function template 
specialization 'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items,
      
bool>::convert_to_Polyhedron<CGAL::Polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::Polyhedron_items_3, HalfedgeDS_default, std::__1::allocator<int> > >' 
requested here
        root_N->p3->convert_to_Polyhedron(P);
                    ^
/opt/local/include/CGAL/Compact_container.h:758:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'Nullptr_t' (aka 
'const void *') for 1st argument; take the address of the argument with &
    CC_iterator (Nullptr_t CGAL_assertion_code(n))
    ^
/opt/local/include/CGAL/Compact_container.h:745:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'const iterator 
&' (aka 'const CC_iterator<Self, false> &') for 1st argument
    CC_iterator (const iterator &it)
    ^
/opt/local/include/CGAL/Triangulation_line_face_circulator_2.h:96:3: note: 
candidate function
  operator const Face_handle() const {return pos;}
  ^
/usr/bin/../lib/c++/v1/list:919:34: note: passing argument to parameter '__x' 
here
    void push_front(value_type&& __x);
                                 ^
In file included from src/export.cc:33:
In file included from src/CGAL_Nef_polyhedron.h:4:
In file included from src/cgalfwd.h:5:
In file included from src/cgal.h:29:
In file included from /opt/local/include/CGAL/Nef_polyhedron_3.h:71:
/opt/local/include/CGAL/Constrained_triangulation_2.h:577:31: error: no 
viable conversion from 'Line_face_circulator' (aka 
'Triangulation_line_face_circulator_2<Self>') to
      'value_type' (aka 
'CGAL::internal::CC_iterator<CGAL::Compact_container<CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
      >, 
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_ds_face_base_2<CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      CGAL::Triangulation_ds_vertex_base_2<void> >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > > > > >, CGAL::Default>, 
false>')
        intersected_faces.push_front(current_face);
                                     ^~~~~~~~~~~~
/opt/local/include/CGAL/Compact_container.h:758:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'Nullptr_t' (aka 
'const void *') for 1st argument; take the address of the argument with &
    CC_iterator (Nullptr_t CGAL_assertion_code(n))
    ^
/opt/local/include/CGAL/Compact_container.h:745:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'const iterator 
&' (aka 'const CC_iterator<Self, false> &') for 1st argument
    CC_iterator (const iterator &it)
    ^
/opt/local/include/CGAL/Triangulation_line_face_circulator_2.h:96:3: note: 
candidate function
  operator const Face_handle() const {return pos;}
  ^
/usr/bin/../lib/c++/v1/list:919:34: note: passing argument to parameter '__x' 
here
    void push_front(value_type&& __x);
                                 ^
In file included from src/export.cc:33:
In file included from src/CGAL_Nef_polyhedron.h:4:
In file included from src/cgalfwd.h:5:
In file included from src/cgal.h:29:
In file included from /opt/local/include/CGAL/Nef_polyhedron_3.h:71:
/opt/local/include/CGAL/Constrained_triangulation_2.h:593:32: error: no 
viable conversion from 'Line_face_circulator' (aka 
'Triangulation_line_face_circulator_2<Self>') to
      'value_type' (aka 
'CGAL::internal::CC_iterator<CGAL::Compact_container<CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
      >, 
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_ds_face_base_2<CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      CGAL::Triangulation_ds_vertex_base_2<void> >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xz_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > > > > >, CGAL::Default>, 
false>')
  intersected_faces.push_front(current_face);
                               ^~~~~~~~~~~~
/opt/local/include/CGAL/Compact_container.h:758:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'Nullptr_t' (aka 
'const void *') for 1st argument; take the address of the argument with &
    CC_iterator (Nullptr_t CGAL_assertion_code(n))
    ^
/opt/local/include/CGAL/Compact_container.h:745:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'const iterator 
&' (aka 'const CC_iterator<Self, false> &') for 1st argument
    CC_iterator (const iterator &it)
    ^
/opt/local/include/CGAL/Triangulation_line_face_circulator_2.h:96:3: note: 
candidate function
  operator const Face_handle() const {return pos;}
  ^
/usr/bin/../lib/c++/v1/list:919:34: note: passing argument to parameter '__x' 
here
    void push_front(value_type&& __x);
                                 ^
In file included from src/export.cc:33:
In file included from src/CGAL_Nef_polyhedron.h:4:
In file included from src/cgalfwd.h:5:
In file included from src/cgal.h:29:
In file included from /opt/local/include/CGAL/Nef_polyhedron_3.h:71:
/opt/local/include/CGAL/Constrained_triangulation_2.h:544:32: error: no 
viable conversion from 'Line_face_circulator' (aka 
'Triangulation_line_face_circulator_2<Self>') to
      'value_type' (aka 
'CGAL::internal::CC_iterator<CGAL::Compact_container<CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
      >, 
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_ds_face_base_2<CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      CGAL::Triangulation_ds_vertex_base_2<void> >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > > > > >, CGAL::Default>, 
false>')
  intersected_faces.push_front(current_face);
                               ^~~~~~~~~~~~
/opt/local/include/CGAL/Constrained_triangulation_2.h:479:24: note: in 
instantiation of member function
      
'CGAL::Constrained_triangulation_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_vertex_base_2<void>
      >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > >,
      CGAL::No_intersection_tag>::find_intersected_faces' requested here
  bool intersection  = find_intersected_faces( vaa, vbb,
                       ^
/opt/local/include/CGAL/Constrained_triangulation_2.h:449:20: note: in 
instantiation of member function
      
'CGAL::Constrained_triangulation_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_vertex_base_2<void>
      >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > >,
      CGAL::No_intersection_tag>::insert_constraint' requested here
  if ( va != vb)   insert_constraint(va,vb);
                   ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:633:9: note: in instantiation of 
member function
      
'CGAL::Constrained_triangulation_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_vertex_base_2<void>
      >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > >,
      CGAL::No_intersection_tag>::insert_constraint' requested here
            ct.insert_constraint(sfc->source()->source()->point(),
               ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:758:33: note: in instantiation of 
member function 'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items,
      
bool>::Triangulation_handler2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 > >::Triangulation_handler2' requested here
            Triangulation_handler2<XY> th(f);
                                       ^
/opt/local/include/CGAL/Nef_3/SNC_const_decorator.h:580:9: note: in 
instantiation of member function 
'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, CGAL::SNC_indexed_items,
      
bool>::Build_polyhedron<CGAL::HalfedgeDS_default<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::I_Polyhedron_derived_items_3<CGAL::Polyhedron_items_3>, 
std::__1::allocator<int> >
      >::Visitor::visit' requested here
      V.visit(f); // report facet
        ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:825:8: note: in instantiation of 
function template specialization
      
'CGAL::SNC_const_decorator<CGAL::SNC_structure<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items, bool>
      
>::visit_shell_objects<CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items,
      
bool>::Build_polyhedron<CGAL::HalfedgeDS_default<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::I_Polyhedron_derived_items_3<CGAL::Polyhedron_items_3>, 
std::__1::allocator<int> >
      >::Visitor>' requested here
          scd.visit_shell_objects(SFace_const_handle(c->shells_begin()),V);
              ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:1043:33: note: in instantiation of 
member function 'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items,
      
bool>::Build_polyhedron<CGAL::HalfedgeDS_default<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::I_Polyhedron_derived_items_3<CGAL::Polyhedron_items_3>, 
std::__1::allocator<int> >
      >::operator()' requested here
   Build_polyhedron<HalfedgeDS> bp(*this);    
                                ^
/opt/local/include/CGAL/Nef_polyhedron_3.h:1035:4: note: in instantiation of 
function template specialization 
'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>,
      CGAL::SNC_indexed_items, 
bool>::convert_to_polyhedron<CGAL::Polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::Polyhedron_items_3, HalfedgeDS_default, std::__1::allocator<int>
      > >' requested here
   convert_to_polyhedron(P);
   ^
src/export.cc:45:14: note: in instantiation of function template 
specialization 'CGAL::Nef_polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::SNC_indexed_items,
      
bool>::convert_to_Polyhedron<CGAL::Polyhedron_3<CGAL::Cartesian<CGAL::Gmpq>, 
CGAL::Polyhedron_items_3, HalfedgeDS_default, std::__1::allocator<int> > >' 
requested here
        root_N->p3->convert_to_Polyhedron(P);
                    ^
/opt/local/include/CGAL/Compact_container.h:758:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'Nullptr_t' (aka 
'const void *') for 1st argument; take the address of the argument with &
    CC_iterator (Nullptr_t CGAL_assertion_code(n))
    ^
/opt/local/include/CGAL/Compact_container.h:745:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'const iterator 
&' (aka 'const CC_iterator<Self, false> &') for 1st argument
    CC_iterator (const iterator &it)
    ^
/opt/local/include/CGAL/Triangulation_line_face_circulator_2.h:96:3: note: 
candidate function
  operator const Face_handle() const {return pos;}
  ^
/usr/bin/../lib/c++/v1/list:919:34: note: passing argument to parameter '__x' 
here
    void push_front(value_type&& __x);
                                 ^
In file included from src/export.cc:33:
In file included from src/CGAL_Nef_polyhedron.h:4:
In file included from src/cgalfwd.h:5:
In file included from src/cgal.h:29:
In file included from /opt/local/include/CGAL/Nef_polyhedron_3.h:71:
/opt/local/include/CGAL/Constrained_triangulation_2.h:577:31: error: no 
viable conversion from 'Line_face_circulator' (aka 
'Triangulation_line_face_circulator_2<Self>') to
      'value_type' (aka 
'CGAL::internal::CC_iterator<CGAL::Compact_container<CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
      >, 
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_ds_face_base_2<CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      CGAL::Triangulation_ds_vertex_base_2<void> >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > > > > >, CGAL::Default>, 
false>')
        intersected_faces.push_front(current_face);
                                     ^~~~~~~~~~~~
/opt/local/include/CGAL/Compact_container.h:758:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'Nullptr_t' (aka 
'const void *') for 1st argument; take the address of the argument with &
    CC_iterator (Nullptr_t CGAL_assertion_code(n))
    ^
/opt/local/include/CGAL/Compact_container.h:745:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'const iterator 
&' (aka 'const CC_iterator<Self, false> &') for 1st argument
    CC_iterator (const iterator &it)
    ^
/opt/local/include/CGAL/Triangulation_line_face_circulator_2.h:96:3: note: 
candidate function
  operator const Face_handle() const {return pos;}
  ^
/usr/bin/../lib/c++/v1/list:919:34: note: passing argument to parameter '__x' 
here
    void push_front(value_type&& __x);
                                 ^
In file included from src/export.cc:33:
In file included from src/CGAL_Nef_polyhedron.h:4:
In file included from src/cgalfwd.h:5:
In file included from src/cgal.h:29:
In file included from /opt/local/include/CGAL/Nef_polyhedron_3.h:71:
/opt/local/include/CGAL/Constrained_triangulation_2.h:593:32: error: no 
viable conversion from 'Line_face_circulator' (aka 
'Triangulation_line_face_circulator_2<Self>') to
      'value_type' (aka 
'CGAL::internal::CC_iterator<CGAL::Compact_container<CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
      >, 
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_ds_face_base_2<CGAL::Triangulation_data_structure_2<CGAL::Triangulation_vertex_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      CGAL::Triangulation_ds_vertex_base_2<void> >, 
CGAL::Constrained_triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >,
      
CGAL::Triangulation_face_base_2<CGAL::Projection_traits_xy_3<CGAL::Cartesian<CGAL::Gmpq>
 >, CGAL::Triangulation_ds_face_base_2<void> > > > > > >, CGAL::Default>, 
false>')
  intersected_faces.push_front(current_face);
                               ^~~~~~~~~~~~
/opt/local/include/CGAL/Compact_container.h:758:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'Nullptr_t' (aka 
'const void *') for 1st argument; take the address of the argument with &
    CC_iterator (Nullptr_t CGAL_assertion_code(n))
    ^
/opt/local/include/CGAL/Compact_container.h:745:5: note: candidate 
constructor not viable: no known conversion from 'Line_face_circulator'
      (aka 'Triangulation_line_face_circulator_2<Self>') to 'const iterator 
&' (aka 'const CC_iterator<Self, false> &') for 1st argument
    CC_iterator (const iterator &it)
    ^
/opt/local/include/CGAL/Triangulation_line_face_circulator_2.h:96:3: note: 
candidate function
  operator const Face_handle() const {return pos;}
  ^
/usr/bin/../lib/c++/v1/list:919:34: note: passing argument to parameter '__x' 
here
    void push_front(value_type&& __x);
                                 ^
1 warning and 9 errors generated.
make: *** [objects/export.o] Error 1