Re: [Guest via RT] [cpan #6094] All tests fail

< update at the end >



   Cc: [email protected]
   From: [email protected] (Jason E. Stewart)

   Hi,

   Thanks for reporting the problem. There is a seperate development list
   for XML-Xerces issues (see the Cc: line).

   Unfortunately the dynamic loading problem you are having could be
   caused by any number or errors and without more information we are
   unlikely to be able to help.

   Is it a RedHat system?

   What Xerces-C are you using: binary (if so which) or self-compiled?




   Full context and any attached attachments can be found at:
   <URL: https://rt.cpan.org/Ticket/Display.html?id=6094 >

   This is a bug with XML-Xerces-2.3.0-4.  After uneventful "perl Makefile.PL" and "make", all tests run during "make test" fail, all with the same error.  For example:

     Can't load '/home/jones/.cpan/build/XML-Xerces-2.3.0-4/blib/arch/auto/XML/Xerces/Xerces.so' for module XML::Xerces: /home/jones/.cpan/build/XML-Xerces-2.3.0-4/blib/arch/auto/XML/Xerces/Xerces.so: undefined symbol: _Q211xercesc_2_316XMLPlatformUtils.fgMemoryManager at /opt/lib/perl5/5.8.3/i686-linux/DynaLoader.pm line 229.
      at /home/jones/.cpan/build/XML-Xerces-2.3.0-4/blib/lib/XML/Xerces.pm line 7
     Compilation failed in require at t/AttributeList.t line 11.


   $ perl -v

   This is perl, v5.8.3 built for i686-linux
   ...
   $ uname -a
   Linux luna 2.4.18c #1 Sun Apr 4 17:45:51 EDT 2004 i686 unknown


   The only unusual aspect of my system is that perl is installed with prefix '/opt' instead of prefix '/usr' or '/usr/local'.




OK, here's an update.  I finally got Xerces 2.3.0 to compile (g++-2.95
was throwing an internal compiler error, but g++-3.0 managed to do the
job).  After installing this newly compiled version of Xerces, I
attempted to install XML::Xerces.  As before "perl Makefile.PL" and
"make" went without a hitch (the compiler used by make was the same as
I used to compile libxerces, gcc-3.0/g++-3.0).

But once I tried "make test" the errors returned:

  Can't load '/home/jones/.cpan/build/XML-Xerces-2.3.0-4/blib/arch/auto/XML/Xerces/Xerces.so' for module XML::Xerces: /home/jones/.cpan/build/XML-Xerces-2.3.0-4/blib/arch/auto/XML/Xerces/Xerces.so: undefined symbol: __gxx_personality_v0 at /opt/lib/perl5/5.8.3/i686-linux/DynaLoader.pm line 229.

I get the same undefined-symbol-type error as before, but the details
are different.  Before, the "undefined symbol" was
_Q211xercesc_2_316XMLPlatformUtils.fgMemoryManager; now it's
__gxx_personality_v0.

I have three files in /usr/lib that mention __gxx_personality_v0:

  /usr/lib/libstdc++.so.3.0.4
  /usr/lib/gcc-lib/i386-linux/3.0.4/libstdc++.a
  /usr/lib/libstdc++.so.5.0.5

...so I tried re-compiling Xerces (for the 973,526th time), with the
additional linker flag -lstdc++.  After installing this new Xerces,
and re-making XML::Xerces, once again, at the "make test" stage I get:

  Can't load '/home/jones/.cpan/build/XML-Xerces-2.3.0-4/blib/arch/auto/XML/Xerces/Xerces.so' for module XML::Xerces: /home/jones/.cpan/build/XML-Xerces-2.3.0-4/blib/arch/auto/XML/Xerces/Xerces.so: undefined symbol: _ZN19PerlCallbackHandler16set_callback_objEP2sv at /opt/lib/perl5/5.8.3/i686-linux/DynaLoader.pm line 229.

The good news (maybe) is that the "undefined symbol:
__gxx_personality_v0" error message is gone.  The bad news is that it
has been replaced by an entirely novel one "undefined symbol:
_ZN19PerlCallbackHandler16set_callback_objEP2sv".



Any ideas would be much appreciated.

kj