Re: [Discuss-gnuradio] Compile/swig error

[Tom Rondeau]

Alex Young wrote:
> Eric Blossom wrote:
>   
> >     
> > > command line, and enter "from gnuradio import gr" and this is what i get:
> > >       
> > You need to make install from gnuradio-core.  You're not rebuilding
> > the swig glue.
> >
> >
> >     
>
> Thanks Eric.  I tried that and ran into this problem:
>
> g++ -g -O2 -Wall -Woverloaded-virtual -pthread -o .libs/benchmark_dotprod
> benchmark_dotprod.o 
> ../../../gnuradio-core/src/lib/.libs/libgnuradio-core.so
> ../../../gnuradio-core/src/lib/.libs/libgnuradio-core.so: undefined
> reference to `vtable for gr_interp_test_bb'
> collect2: ld returned 1 exit status
> make[2]: *** [benchmark_dotprod] Error 1
> make[2]: Leaving directory
> `/work/gnuradio_src/trunk/gnuradio-core/src/tests'
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory `/work/gnuradio_src/trunk/gnuradio-core/src'
> make: *** [all-recursive] Error 1
>
> All I could find out about any vtable errors was something about gcc and
> g++, but I haven't updated anything on my system except the actual gnuradio
> source.  
>
> Any other suggestions?
>
> Thanks,
> Alex Young
>   
Alex,

Have you made a destructor function for the class? Those errors tend to 
pop up when you haven't properly overloaded the virtual functions.

Tom