[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Undefined symbol _ZN2gr12msg_accepter4postEN5boost13intrusive_ptrIN3

From: Marcus Müller
Subject: Re: Undefined symbol _ZN2gr12msg_accepter4postEN5boost13intrusive_ptrIN3pmt8pmt_baseEEES5_
Date: Mon, 8 Nov 2021 16:28:30 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0

Hi John,

as discussed on chat: this happens if, and only if, you're linking at build 
time to a
different library than your runtime shared library loader finds.

The fix is simple: make sure you've *not* got two versions of GNU Radio around, 
one of
which your linker finds during building of gr-osmosdr, and a different one your 
ld.so finds.

Best regards,

On 04.11.21 20:35, John Coppens wrote:
> Hi all.
> I've been suffering trying to install gnuradio. I tried different versions, 
> and different
> combinations with gr-osmosdr, as I don't see a list of which versions go 
> together.
> Using, eg. gr-osmosdr.so.0.2.0 and gnuradio-, which I have compiled 
> successfully
> on my Slackware64-current system, I get an error at run-time:
> Executing: /usr/bin/python3 -u /usr/local/projects/rf/gnuradio/VHF_NBFM.py
> Traceback (most recent call last):
>   File "/usr/local/projects/rf/gnuradio/VHF_NBFM.py", line 40, in <module>
>     import osmosdr
>   File "/usr/lib64/python3.9/site-packages/osmosdr/__init__.py", line 25, in 
> <module>
>     from .osmosdr_swig import *
>   File "/usr/lib64/python3.9/site-packages/osmosdr/osmosdr_swig.py", line 13, 
> in <module>
>     from . import _osmosdr_swig
> ImportError: /usr/lib64/libgnuradio-osmosdr.so.0.2.0: undefined symbol: 
> _ZN2gr12msg_accepter4postEN5boost13intrusive_ptrIN3pmt8pmt_baseEEES5_
> c++filt translates that symbol to 
> gr::msg_accepter::post(boost::intrusive_ptr<pmt::pmt_base>, 
> boost::intrusive_ptr<pmt::pmt_base>)
> I have Python 3.9.5, Slackware64-current, librtlsdr installed and working 
> (the included
> codes runs fine). SWIG is version 4.0.2. 
> The gr-osmosdr problem seems to be the only remaining issue.
> Can anyone indicate me where to search? 
> John

reply via email to

[Prev in Thread] Current Thread [Next in Thread]