Re: liboctave library in stand-alone C++ program

[Bootsrapa Limanond]

Hello:

Thanks very much for the tips. Compiling went through great !!!

Suttipan.

On Fri, 18 Jun 1999, Joao Cardoso wrote:

> Suttipan Limanond wrote:
> > 
> > Hi:
> > 
> > I apologize for asking a bit off-topic subject.
> > 
> > Has anyone link liboctave to standalone C++ program?
> > What other libraries beside liboctave need to be linked in to make
> > it work? I linked liboctave, libcruft, and libatlas (tuned BLAS)
> > in but the `ld' linker still complains about a lot about `undefined
> > symbols'. When I use `mkoctfile' to compile (with `main(){' replaced by
> > `DEFUN_DLD(.....)'), however, everything is fine.
> > 
> > Thank you very much,
> > 
> > Suttipan Limanond.
> > 
> > PS: This is the exact command and
> > some of the undefined symbols:
> > 
> > command:
> > g++ -g -Wall -o cartpole -I/usr/local/include
> >   -L/usr/local/lib/octave-2.0.13 NeuralNetwork.cc backprop.o plant.o
> >   -loctave -lcruft -latlas
> > 
> 
> I guess that you need to link against libstdc++ and other system
> libraries like -lm. When you use `mkoctfile' you will use the compiled
> function from within Octave, that is already linked with those
> libraries. For a standalone program, however, you need to specify them
> at link time. One way to know what they are is looking in the Makefile
> of the Octave distribution, sibdirectory src, target octave. Other way,
> if your Octave has been dinamically linked, is to use the `ldd' command
> on the Octave binary to find out what the libraries are. On my system,
> 
> [merlin 283] ldd /usr/local/bin/octave
> dynamic linker: /usr/local/bin/octave: file loaded:
> /usr/local/lib/octave-2.1.13/liboctinterp.so
> dynamic linker: /usr/local/bin/octave: file loaded:
> /usr/local/lib/octave-2.1.13/liboctave.so
> dynamic linker: /usr/local/bin/octave: file loaded:
> /usr/local/lib/octave-2.1.13/libcruft.so
> dynamic linker: /usr/local/bin/octave: file loaded:
> /usr/lib/libsocket.so.1
> dynamic linker: /usr/local/bin/octave: file loaded:
> /usr/local/lib/libgmalloc.so
> dynamic linker: /usr/local/bin/octave: file loaded:
> /usr/local/lib/libstdc++.so
> dynamic linker: /usr/local/bin/octave: file loaded: /usr/lib/libc.so.1
> 
> on your system you might have also ...libm.so.
> 
> Luck
> Joao
> 
> > Some of the undefined symbols:
> > xerbla.o: Undefined symbol `_s_wsfe' referenced from text segment
> > xerbla.o: Undefined symbol `_do_fio' referenced from text segment
> > xerbla.o: Undefined symbol `_do_fio' referenced from text segment
> > xerbla.o: Undefined symbol `_e_wsfe' referenced from text segment
> > zgemv.o: Undefined symbol `_d_cnjg' referenced from text segment
> > zgemv.o: Undefined symbol `_d_cnjg' referenced from text segment
> > qzhes.o: Undefined symbol `_d_sign' referenced from text segment
> > qzhes.o: Undefined symbol `_d_sign' referenced from text segment
> > qzhes.o: Undefined symbol `_d_sign' referenced from text segment
> > qzit.o: Undefined symbol `_d_sign' referenced from text segment
> > qzit.o: Undefined symbol `_d_sign' referenced from text segment
> > qzit.o: Undefined symbol `_d_sign' referenced from text segment
> > qzit.o: Undefined symbol `_d_sign' referenced from text segment
> > qzit.o: Undefined symbol `_d_sign' referenced from text segment
> > qzval.o: Undefined symbol `_d_sign' referenced from text segment
> > qzval.o: More undefined symbol _d_sign refs follow
> > dgesvd.o: Undefined symbol `_s_cat' referenced from text segment
> > dhseqr.o: Undefined symbol `_s_cat' referenced from text segment
> > dhseqr.o: Undefined symbol `_s_cat' referenced from text segment
> > dlabad.o: Undefined symbol `_d_lg10' referenced from text segment
> > dlamch.o: Undefined symbol `_pow_di' referenced from text segment
> > dlamch.o: Undefined symbol `_pow_di' referenced from text segment
> > dlartg.o: Undefined symbol `_pow_di' referenced from text segment
> > ilaenv.o: Undefined symbol `_s_cmp' referenced from text segment
> > ilaenv.o: Undefined symbol `_s_cmp' referenced from text segment
> > ilaenv.o: Undefined symbol `_s_cmp' referenced from text segment
> > ilaenv.o: Undefined symbol `_s_cmp' referenced from text segment
> > ilaenv.o: Undefined symbol `_s_cmp' referenced from text segment
> > ilaenv.o: Undefined symbol `_s_cmp' referenced from text segment
> > ilaenv.o: More undefined symbol _s_cmp refs follow
> > zgebal.o: Undefined symbol `_d_imag' referenced from text segment
> > zgebal.o: Undefined symbol `_d_imag' referenced from text segment
> > 
> > ---------------------------------------------------------------------
> > Octave is freely available under the terms of the GNU GPL.  To ensure
> > that development continues, see www.che.wisc.edu/octave/giftform.html
> > Instructions for unsubscribing: www.che.wisc.edu/octave/archive.html
> > ---------------------------------------------------------------------
> 
> -- 
> Joao Cardoso                |   e-mail: address@hidden
> INESC, R. Jose Falcao 110   |   tel:  + 351 2 2094322
> 4050 Porto, Portugal        |   fax:  + 351 2 2008487
> 



---------------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.  To ensure
that development continues, see www.che.wisc.edu/octave/giftform.html
Instructions for unsubscribing: www.che.wisc.edu/octave/archive.html
---------------------------------------------------------------------