Re: [Discuss-gnuradio] Undefined symbol: wav_write_sample

[Carlos Alberto Ruiz Naranjo]

I have:

- Ubuntu 13.10
- Kernel: 3.11.0-19-generic

- GNURadio 3.7.2.1

2014-08-17 17:45 GMT+02:00 Marcus Müller <address@hidden>:

yes, should be linked against libgnuradio-blocks.so.
So something goes wrong when setting the link libraries.
In your main CMakeLists.txt, can you try to delete the BLOCK, GRU and GR entries (I don't think that these exist as GNU Radio submodules; how did they get there?) and try again?

Greetings,
Marcus

On 17.08.2014 17:05, Carlos Alberto Ruiz Naranjo wrote:
> Hello Marcus,
>
> It is the out:
>
> address@hidden:~/Escritorio/gr-MLABlocks/build$ ldd
> /usr/local/lib/libgnuradio-MLABlocks.so
>     linux-vdso.so.1 =>  (0x00007fff3b5fe000)
>     libboost_system.so.1.53.0 =>
> /usr/lib/x86_64-linux-gnu/libboost_system.so.1.53.0 (0x00007f6bdf7a2000)
>     libgnuradio-runtime-3.7.2.1.so.0.0.0 =>
> /usr/local/lib/libgnuradio-runtime-3.7.2.1.so.0.0.0 (0x00007f6bdf4f1000)
>     libgnuradio-pmt-3.7.2.1.so.0.0.0 =>
> /usr/local/lib/libgnuradio-pmt-3.7.2.1.so.0.0.0 (0x00007f6bdf2a9000)
>     libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6
> (0x00007f6bdefa5000)
>     libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f6bdeca1000)
>     libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1
> (0x00007f6bdea8a000)
>     libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f6bde6c2000)
>     libvolk.so.0.0.0 => /usr/local/lib/libvolk.so.0.0.0 (0x00007f6bde37c000)
>     libboost_filesystem.so.1.53.0 =>
> /usr/lib/x86_64-linux-gnu/libboost_filesystem.so.1.53.0 (0x00007f6bde165000)
>     libboost_thread.so.1.53.0 =>
> /usr/lib/x86_64-linux-gnu/libboost_thread.so.1.53.0 (0x00007f6bddf4f000)
>     libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
> (0x00007f6bddd32000)
>     librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f6bddb29000)
>     /lib64/ld-linux-x86-64.so.2 (0x00007f6bdfbf1000)
>     liborc-0.4.so.0 => /usr/lib/x86_64-linux-gnu/liborc-0.4.so.0
> (0x00007f6bdd8aa000)
>
> Should be linked libgnuradio-blocks, right?
>
>
>
>
> 2014-08-17 16:54 GMT+02:00 Marcus Müller <address@hidden>:
>

Hi Carlos,

you seem to be setting up linking correctly (if you're not even
requiring more GNU Radio modules than actually necessary in your main
CMakeLists.txt); however try doing
ldd /usr/local/lib/libgnuradio-MLABlocks.so
and check whether the library really is linked against libgnuradio-blocks.

Greetings,
Marcus

On 17.08.2014 16:23, 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.
>>>
>>>
>>>
>>> _______________________________________________ Discuss-gnuradio
>>> mailing list address@hidden
>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>>

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