Re: [Discuss-gnuradio] accessing gr-blocks, gr-filter, gr-digital, etc. in out-of-tree module

[Sean Nowlan]

On 04/22/2013 02:49 PM, Sean Nowlan wrote:
> On 04/22/2013 11:59 AM, Sean Nowlan wrote:
> > So this sets up both include and linker paths? I've been trying to 
> > update some code to the new namespace-based API. I can compile OK but 
> > I'm getting "symbol not found" errors when importing from swig. It's 
> > possible the swig files aren't right, but I modeled them after the 
> > output of gr_modtool. I suspect there's a linking issue.
>
> That should read: I'm getting "ImportError: [...] undefined symbol" 
> errors whenever I import the package. Everything compiles including 
> SWIG wrapper file.

Ok, solved my problem. It turns out I hadn't declared member functions 
as pure virtual (i.e., "virtual xyz f() = 0") in the public header file.