[Swig-user] undefined reference problem

[Victor W. T. K. <vi...@it...>]

Hi all,

  I'm having trouble compiling something that works fine on a 32 bit
machine onto a 64 bit machine, with error messages of the following sort:

=========================================
build/temp.linux-x86_64-2.3/Py_Scream_EE_wrap.o(.gnu.linkonce.t._ZN4swig19traits_asptr_stdseqISt3mapISsiSt4lessISsESaISt4pairIKSsiEEES4_ISsiEE5asptrEP7_objectPPS8_+0x5a1)
:/projects/Biogroup/SCREAM/SCREAM/swig/python/Py_Scream_EE_wrap.cpp:2373:
undefined reference to `PySequence_Size'
=========================================

  I only included one line of the undefined references, but where
"PySequence_Size" is, it also happens for PyExc_TypeError, PyExc_Format,
etc.  I'm using swig 1.3.29 on the 64 bit machine, and am using the exact
same compiler options as the 32 bit machine except I changed -shared to
-fPIC.  I also checked that the python version is compiled for the 64 bit
architecture.

  Does anybody know how to resolve this problem?  I'm suspecting I may
need to explicitly link to some 64 bit library for some swigged python
stuff but I don't know where and which files to look for.  Thanks in
advance!

- Victor



"I must say I am slightly disappointed.  I did not bring my flock of sheep
in the hope I could shepherd them across London Bridge."

Alan Greenspan, made a Freeman of the City of London, an award bestowing
on him certain ancient privileges including the right to take sheep
through the city



"If you have to cut down a tree on private land, gnaw the stump so that it
will appear that a beaver did it."

-- From the Canada Committee on Ecological (Bio-Physical) Land
Classification, Newsletter, No 5, 1978.


________________________________________________________________________
Victor Kam                       |
Department of Chemistry          |       vi...@ca...
MC 139-74                        |       phone  #626-644-5947
California Institute of Tech.    |              #626-395-2440
Pasadena, CA 91125               |
________________________________________________________________________