This example tests the %import directive and -relativeimport swig option.

Use 'python runme.py' to run a test.

Overview:
---------

The example defines 2 different extension modules--each wrapping a separate C++
class.

     pyX/pkg2/pkg3/foo.i   - Pkg3_Foo class
     pyX/pkg2/bar.i        - Pkg2_Bar class derived from Pkg3_Foo

The code is processed by swig with -relativeimport flag. The runtime test
imports pyX.pkg2.bar module.

If everything works well, the module pyX.pkg2.bar shall load properly.

Unix:
-----
- Run make
- Run the test as described above
