__stack_chk_fail_local

[gianluca]

hy list,
I've built _libfoo.so and  libfoo.py library with swig and I've copied
in /usr/lib/python2.5/lib-dynload/ but when import the module

>>import libfoo

I've that message

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: /usr/lib/python2.5/lib-dynload/_libfoo.so: undefined
symbol: __stack_chk_fail_local

Could anybody help me?

gianluca