CGAL users discussion list

[Stephane Tayeb <>]

Martin Weier wrote:
> Hi,
>
> I am trying to use the apollonius graph for one of my projects. 
> Currently I am developing on osx
> and xcode. I started by installing CGAL-3.5. For this i installed all 
> dependencies using macports.
> Now CGAL compiles with no errors (I am using gcc 4.0.1 from which I 
> heard has some troubles with
> compiler optimizations and CGAL).
> However, when I try to compile something with xcode, I get the following 
> linker error:
>
> "CGAL::Random::Random()", referenced from:
>       
> CGAL::Triangulation_2<CGAL::ApolloniusGraph_2::Apollonius_graph_traits_wrapper_2<CGAL::Apollonius_graph_traits_2<CGAL::Simple_cartesian<CGAL::MP_Float>, 
> CGAL::Integral_domain_without_division_tag> >, 
> CGAL::Triangulation_data_structure_2<CGAL::Apollonius_graph_vertex_base_2<CGAL::Apollonius_graph_traits_2<CGAL::Simple_cartesian<CGAL::MP_Float>, 
> CGAL::Integral_domain_without_division_tag>, true, 
> CGAL::Triangulation_ds_vertex_base_2<void> >, 
> CGAL::Triangulation_face_base_2<CGAL::Apollonius_graph_traits_2<CGAL::Simple_cartesian<CGAL::MP_Float>, 
> CGAL::Integral_domain_without_division_tag>, 
> CGAL::Triangulation_ds_face_base_2<void> > > 
>  >::Triangulation_2(CGAL::ApolloniusGraph_2::Apollonius_graph_traits_wrapper_2<CGAL::Apollonius_graph_traits_2<CGAL::Simple_cartesian<CGAL::MP_Float>, 
> CGAL::Integral_domain_without_division_tag> > const&)in main.o
> ld: symbol(s) not found
> collect2: ld returned 1 exit status
>
> Does anybody have any ideas on what goes wrong and how to fix it. Am I 
> missing some linker options? By the way the apollonious graph
> examples compile fine. Can anybody help me to set up a working xcode 
> project? I would appreciate your help.
>
> - Martin
Hi Martin,

Could you please give more details about your problem :
* did you generate an XCode project using "cmake -GXode" command line or 
are you trying to setup one by yourself ?
* what are exactly the files you are trying to compile ?

I personnaly use XCode to compile CGAL stuff without problems.

Regards,

NB: you may change the compiler version using "Get info" on one target 
then setting another compiler on "C/C++ compiler version" line.

--
Stephane Tayeb
Software engineer - INRIA Sophia Antipolis
Geometrica Project-Team