Re: [Discuss-gnuradio] C++ Class in out of tree module 3.7

[Marcus Müller]

Hi Andrew,
you're probably doing everything right!
When looking at the headers of C++ block, you will notice that the 
classes have a "MODULENAME_API" makro prefix. Did you use that on your 
class?

Best regards,
Marcus


On 11/10/2014 08:37 PM, Andrew Burger wrote:
> I am trying to add a non block C++ class to the out of tree build  of
> a module.  I successfully compile the code but all my Python tests
> fail.
>
>    File "/python/qa_test.py", line 24, in <module>
>      import example_swig as example
>    File "/build/swig/example_swig.py", line 28, in <module>
>      _example_swig = swig_import_helper()
>    File "/build/swig/example_swig.py", line 24, in swig_import_helper
>      _mod = imp.load_module('_example_swig', fp, pathname, description)
> ImportError:/build/lib/libgnuradio-example.so: undefined symbol:
> _ZTIN2gr15example
>
> I add the header and source files to the CMakeLists.txt and example_swig.i
>
> What is the best practice to add such code?