Re: [Fwd: Linking Problems with gcc-3.3]

[Wolfgang Köhler <wolfk at gfz-potsdam dot de>]

Paul,

many thanks for your immediate answer.

You are right, its actually C++ code.
It works now ok, however I linked with -lfrtbegin and -lg2c
(-lgfortran was mot found), according to your help-page.

I would suggest, however, to place a hint on the man-page of g77.
In the eralier versions no extra libraries were needed for linking.

thanks and regards

wolfk


Paul Brook wrote:
> 
> On Thursday 22 January 2004 9:56 am, Wolfgang Köhler wrote:
> > Hello,
> >
> > I have recently tried to update my gcc from version 2.95 -> 3.3
> > and was not able to compile an older program that links
> > Fortan with C-code. Compiling succeeds but linking fails with
> > errors:
> >
> > undefined reference to:
> >     __gxx_personality_v0
> >
> > and some other undefines associated with C new-operator.
> >
> > Can you help me?
> 
> Sounds like you actualy mean C++. __gxx_personality_v0 is in libsupc++, which
> might not have existed/been part of libstdc++ in gcc 2.9.5.
> 
> Basically you need to link in both the c++ and fortran runtime libraries.
> Probably the easiest way to do this to link the final executable with g++ and
> add -lgfortran to link the fortran runtime.
> 
> Paul

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Wolfgang Koehler                                       wolfk@gfz-potsdam.de
GeoForschungsZentrum Potsdam, Germany, Projekt CHAMP	Tel: (0331)288-1738