Tutorial Swig 2.0.9 and Ubuntu12.10(64bit)

Now, swig tutorial is as follows. (http://www.swig.org/tutorial.html)

Building a Python module
$ sudo apt-get install python3.2-dev-all
$ swig -python example.i
$ gcc -c example.c example_wrap.c -I/usr/include/python3.2 -fPIC
$ ld -shared example.o example_wrap.o -o _example.so

$ python3.2
Python 3.2.3 (default, Oct 19 2012, 19:53:16) 

[GCC 4.7.2] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>> import example

>>> example.fact(5)

120

>>> example.my_mod(7,3)

1

>>> example.get_time()

'Sun Mar 31 11:48:42 2013\n'

>>> 

If you do not specify the '-fPIC' of options to the compiler, the following error occurs in GNU/Linux(ELF system). 

$ ld -shared example.o example_wrap.o -o _example.so 

ld: example_wrap.o: relocation R_X86_64_32S against `.rodata' can not be used when making a shared object; recompile with -fPIC

example_wrap.o: could not read symbols: Bad value