Dear Nick Cummings,
I tried t compile your program and it compiles correctly on my
configuration. So it is hard to me to help you.
May be you can try to change the order of libraries in the link if you
did not tried it.
Yves.
Le 08/12/2012 17:47, Nick Cummings a écrit :
> I recently have tried to re-compile a simple program I wrote
> previously using GMM++ and Lapack but (after updating my operating
> system) am now having an error during the linking process. The
> problem seems specifically linked to the function geev_interface_right.
>
> Below a very simple test program using that function. When I attempt
> to compile it using g++ on my system (information below), I get the
> error "collect2: ld returned 1 exit status." It seems to be
> complaining about "undefined reference to `zgeev_'," but as far as I
> can tell I have all the required libraries, so I can quite understand
> what the problem is. The full output is below. I even used the tool
> nm on the Lapack library to confirm that the symbol zgeev_ appears in
> the library. I realize that the underlying problem may not be with
> GMM++ but rather with one of the packages in my Linux distribution or
> just some other simple error on my part; my hope is that people on
> this mailing list may at least have a notion of the root of the
> problem (or perhaps have run into it themselves) so that I can seek
> answers in the appropriate place.
>
> System information:
>
> Ubuntu Linux 12.04.1
> GMM++ package -- libgmm++-dev (4.1.1-5ubuntu1)
> Lapack package -- liblapack3gf (3.3.1-1)
> Blas package -- libblas3gf (1.2.20110419-2ubuntu1)
> gFortran package -- libgfortran3 (4.6.3-1ubuntu5)
>
>
> Compile command and output:
>
> $ g++ -llapack -lblas -lgfortran bug.cc
> /tmp/ccPq2tbF.o: In function `void
> gmm::geev_interface_right<std::vector<std::complex<double>,
> std::allocator<std::complex<double> > >
> >(gmm::dense_matrix<std::complex<double> > const&,
> std::vector<std::complex<double>, std::allocator<std::complex<double>
> > > const&, gmm::dense_matrix<std::complex<double> >&)':
> bug.cc:(.text._ZN3gmm20geev_interface_rightISt6vectorISt7complexIdESaIS3_EEEEvRKNS_12dense_matrixIS3_EERKT_RS7_[void
> gmm::geev_interface_right<std::vector<std::complex<double>,
> std::allocator<std::complex<double> > >
> >(gmm::dense_matrix<std::complex<double> > const&,
> std::vector<std::complex<double>, std::allocator<std::complex<double>
> > > const&, gmm::dense_matrix<std::complex<double> >&)]+0x208):
> undefined reference to `zgeev_'
> bug.cc:(.text._ZN3gmm20geev_interface_rightISt6vectorISt7complexIdESaIS3_EEEEvRKNS_12dense_matrixIS3_EERKT_RS7_[void
> gmm::geev_interface_right<std::vector<std::complex<double>,
> std::allocator<std::complex<double> > >
> >(gmm::dense_matrix<std::complex<double> > const&,
> std::vector<std::complex<double>, std::allocator<std::complex<double>
> > > const&, gmm::dense_matrix<std::complex<double> >&)]+0x35d):
> undefined reference to `zgeev_'
> collect2: ld returned 1 exit status
>
>
> Test code (bug.cc):
>
> #include <complex>
> #define GMM_USES_LAPACK
> #include <gmm/gmm.h>
>
> typedef std::complex<double> scalar;
>
> int main()
> {
> try {
>
> gmm::dense_matrix<scalar> A(4,4);
> gmm::dense_matrix<scalar> U(4,4);
> A(0,1) = 1; A(1,0) = -1; A(2,2)=3; A(3,3)=4;
> std::vector<scalar> Eig(4);
> gmm::geev_interface_right(A,Eig,U);
>
> }
> GMM_STANDARD_CATCH_ERROR;
>
> return 0;
> }
>
>
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--
Yves Renard ([email protected]) tel : (33) 04.72.43.87.08
Pole de Mathematiques, INSA-Lyon fax : (33) 04.72.43.85.29
20, rue Albert Einstein
69621 Villeurbanne Cedex, FRANCE
http://math.univ-lyon1.fr/~renard
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