CGAL users discussion list

["Martial TOLA (CNRS-Liris)" <>]

Hello

I'm under Ubuntu 9.04 with cmake 2.6patch2 and I have exactly the same 
problem:

undefined reference to `dgelss'.


I have tried the original CMakeLists.txt and this one but it's the same 
result.

I have compiled taucs from taucs_full.tgz (3.4) and it's ok.

I have exactly the same error if I use :
   - lapack from /usr/local/lib (result of the taucs compilation)
   - lapack from /usr/lib
   - lapack from /usr/lib/atlas

Do you have an idea for this problem ???

Thank you.

Laurent Rineau (GeometryFactory) a écrit :
> On Sunday 25 January 2009 22:09:45 Rob wrote:
>   
> > Laurent Rineau (GeometryFactory) wrote:
> >     
> > > On Saturday 24 January 2009 17:44:12 Rob wrote:
> > >       
> > > > Hello,
> > > >
> > > >   I seem to have  a problem linking the Polyhedron demo in the 3.4
> > > > release of CGAL.  When I try to make the demo in /demo/Polyhedron, it
> > > > compiles successfully, but then gives the following error during
> > > > linking:
> > > >
> > > > CMakeFiles/Polyhedron_3.dir/Polyhedron_3.o: In function
> > > > `CGAL::Monge_via_jet_fitting<CGAL::Filtered_kernel<CGAL::Simple_cartesia
> > > > n<d ouble>
> > > >
> > > >         
> > > > > , CGAL::Cartesian<double>,
> > > > >           
> > > > CGAL::Lapack_svd>::solve_linear_system(CGAL::Lapack_matrix&,
> > > > CGAL::Lapack_vector&)':
> > > > Polyhedron_3.cpp:(.text._ZN4CGAL21Monge_via_jet_fittingINS_15Filtered_ke
> > > > rne
> > > > lINS_16Simple_cartesianIdEEEENS_9CartesianIdEENS_10Lapack_svdEE19solve_l
> > > > inea
> > > > r_systemERNS_13Lapack_matrixERNS_13Lapack_vectorE[CGAL::Monge_via_jet_fi
> > > > ttin g<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> > > >
> > > >         
> > > > > , CGAL::Cartesian<double>,
> > > > >           
> > > > CGAL::Lapack_svd>::solve_linear_system(CGAL::Lapack_matrix&,
> > > > CGAL::Lapack_vector&)]+0x94): undefined reference to `dgelss'
> > > > collect2: ld returned 1 exit status
> > > > make[2]: *** [demo/Polyhedron/Polyhedron_3] Error 1
> > > > make[2]: Leaving directory `/home/rob/SoftwareStaging/CGAL-3.4/build'
> > > > make[1]: *** [demo/Polyhedron/CMakeFiles/Polyhedron_3.dir/all] Error 2
> > > > make[1]: Leaving directory `/home/rob/SoftwareStaging/CGAL-3.4/build'
> > > > make: *** [all] Error 2
> > > >
> > > > I've checked multiple times, and I configure cmake with lapack, so I
> > > > can't figure out why it's complaining at me.  Any help would be greatly
> > > > appreciated.
> > > >         
> > > Can you show us the output of cmake, and attach your CMakeCache.txt file?
> > > It seems LAPACK is not configured correctly.
> > >       
>
> Rob,
>
> I think the bug is my fault. The file demo/Polyhedron/CMakeList.txt does not 
> deal correctly with case when LAPACK is present but not TAUCS.
>
> Please try to copy the attached CMakeLists.txt to 
> demo/Polyhedron/CMakeList.txt and recompile the Polyhedron demo, and tell us 
> if that fixes your linkage problem.
>
>   
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fn:Martial TOLA
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	mi=C3=A8re Lyon 2/Ecole Centrale de Lyon;Laboratoire LIRIS - UMR 5205
email;internet:
title;quoted-printable:Ing=C3=A9nieur d'=C3=A9tudes CNRS
url:http://liris.cnrs.fr/martial.tola
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