Re: [Discuss-gnuradio] Undefined symbol: wav_write_sample

[Martin Braun]

On 08/21/2014 10:44 AM, Carlos Alberto Ruiz Naranjo wrote:
> Hello,
> 
> I am creating a new block (modified wavfile_sink). Now it is only a
> copy-paste of wavfile_sink.
> I have this error in GRC:
> 
> Traceback (most recent call last):
>   File "/home/carlos/Escritorio/ESA/apt_rec_v01.py", line 111, in <module>
>     tb = apt_rec_v01()
>   File "/home/carlos/Escritorio/ESA/apt_rec_v01.py", line 68, in __init__
>     self.noaa_dec_0 = sat_observer.wavfile_sink("/tmp/bien.wav", 1,
> 11025, 16)
> AttributeError: 'module' object has no attribute 'wavfile_sink'

Could be a SWIG issue -- try clearing the build dir and starting again.

M
> 
> This is the code: https://github.com/qarlosalberto/MLABlock
> 
> ** With sudo ldconfig doesnt run.
> 
> Thank you.
> 
> 
> 
> 2014-08-19 20:16 GMT+02:00 Carlos Alberto Ruiz Naranjo
> <address@hidden <mailto:address@hidden>>:
> 
>     It runs. I have done a pull request.
> 
>     Thank you all ;)
> 
> 
>     2014-08-18 14:12 GMT+02:00 Martin Braun <address@hidden
>     <mailto:address@hidden>>:
> 
>         Carlos,
> 
> 
>         the functions in wavfile.cc are not publicly exported. We might
>         want to
>         change that, since wavfile.h is actually publicly visible.
> 
>         You can try and add the BLOCKS_API macro in wavfile.h. That will
>         probably fix your troubles. If so, please submit a patch & pull
>         request.
> 
>         M
> 
>         On 08/17/2014 04:23 PM, Carlos Alberto Ruiz Naranjo wrote:
>         > Hello,
>         >
>         > I am developing a block. Now it is a copy of Wav File Sink block.
>         > It compiles fine but in the GRC gives me the error:
>         >
>         > ImportError: /usr/local/lib/libgnuradio-MLABlocks.so:
>         undefined symbol:
>         > _ZN2gr6blocks16wav_write_sampleEP8_IO_FILEsi
>         >
>         > This is the block:
>         > https://github.com/qarlosalberto/wav-sink
>         >
>         > *I have done: sudo ldconfig
>         > ** I have serched in the mailing list, but I haven't solved
>         the problem.
>         >
>         > Thank you.
>         >
>         >
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>         > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>         >
> 
> 
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>