Re: xerces 1.4, DOM Parser, segmentation fault, std c++ library version???

[Stefan Brauneis <st...@gmd.de>]

Harald Barrera Dubois wrote:

> Hi all.
>
> My version of the std c++ library is "libstdc++-2.96-69" (in Redhat linux: rpm
> -qa | grep std). The examples distributed with the xerces library runs without
> problems, but when I compile the source code of any example (for example
> DOMCount), I receive "segmentation fault" error.
> I suspect about the std c++ library because is there where the segmentation
> fault occurs in createReader member of ReaderMgr class.
> Which version are you using?
> Is this the correct version?
> Someone is using the same version of stdlib?

Hi,

I think we had the same problem. We use redhat 7.0 with libstdc++--2.96-69 and
gcc-2.96-69, the solution to our
seg. fault problems was to recompile the whole xerces-library. So, I would
propose to download the xerces sources and
compile them with your version of gcc. After that try to compile the examples as
well if you want to use them.
The reason should be that if you try to compile the samples on your maschine they
will be linked to the new libstc++ but
the xerces library itself is linked to the old version. This should cause some
version confilicts which you can only avoid if both, the library and the
programm(e.g. the sample) uses the same libstdc++. The other possibility could be
to downgrade your gcc. But afaIk I think this is not the easiest way.
A pretty good documentation on how to compile the libary comes with the sources
so this shouldn't be a real problem.
cu
    stefan



---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org

RE: xerces 1.4, DOM Parser, segmentation fault, std c++ library version??? (problem solved)

[Harald Barrera Dubois <ha...@dilmun.ls.fi.upm.es>]

Hello.

Thanks Stefan for your answer, we did it but we've got the same result (core
dumped :-) and
I realiy don`t know why the problem persist. We have solve the problem
changing the std library
used to link, linking with the std library "libstdc++-2-libc6.1-1-2.9.0"
explicitly (-l option in g++).
The default version (libstdc++-3-libc6.2-2-2.10.0) seems to have a bug or an
incompatibility.
We have found (using "ldd" command) that the example programs (DOMCount,
etc.) uses
"libstdc++-2-libc6.1-1-2.9.0" library instead of the default
(libstdc++-3-libc6.2-2-2.10.0.so), so
we add the comented option to the Makefile and we solve the problem... (!).

Well, thanks all

Harald.

----- Mensaje original -----
De: "Stefan Brauneis" <st...@gmd.de>
Para: <xe...@xml.apache.org>
Enviado: martes 8 de mayo de 2001 13:09
Asunto: Re: xerces 1.4, DOM Parser, segmentation fault, std c++ library
version???


> Harald Barrera Dubois wrote:
>
> > Hi all.
> >
> > My version of the std c++ library is "libstdc++-2.96-69" (in Redhat
linux: rpm
> > -qa | grep std). The examples distributed with the xerces library runs
without
> > problems, but when I compile the source code of any example (for example
> > DOMCount), I receive "segmentation fault" error.
> > I suspect about the std c++ library because is there where the
segmentation
> > fault occurs in createReader member of ReaderMgr class.
> > Which version are you using?
> > Is this the correct version?
> > Someone is using the same version of stdlib?
>
> Hi,
>
> I think we had the same problem. We use redhat 7.0 with libstdc++--2.96-69
and
> gcc-2.96-69, the solution to our
> seg. fault problems was to recompile the whole xerces-library. So, I would
> propose to download the xerces sources and
> compile them with your version of gcc. After that try to compile the
examples as
> well if you want to use them.
> The reason should be that if you try to compile the samples on your
maschine they
> will be linked to the new libstc++ but
> the xerces library itself is linked to the old version. This should cause
some
> version confilicts which you can only avoid if both, the library and the
> programm(e.g. the sample) uses the same libstdc++. The other possibility
could be
> to downgrade your gcc. But afaIk I think this is not the easiest way.
> A pretty good documentation on how to compile the libary comes with the
sources
> so this shouldn't be a real problem.
> cu
>     stefan
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org


---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org