Undefined symbol: zmq_strerror in OOT C++ block

[Guillermo Lena]

I have ported an OOT block from 3.8 to 3.10 by creating a new module and block with gr_modtool in GNU Radio 3.10 and copying the 3.8 code into de 3.10 corresponding files. I have built it with cmake .. make etc successfully. This blocks involves CSP and ZMQ. When I run a flowgraph where this block is, i get the following error:

Traceback (most recent call last):

  File "/home/gnuradio/persistent-folder/satlab/srs3_radio_lime.py", line 38, in <module>

    from gnuradio import satmisc

  File "/usr/local/lib/python3.10/dist-packages/gnuradio/satmisc/__init__.py", line 18, in <module>

    from .satmisc_python import *

ImportError: /usr/local/lib/x86_64-linux-gnu/libgnuradio-satmisc.so.1.0.0: undefined symbol: zmq_strerror

I do not know exactly where this error comes from and would much apreciate any hints on how to fix this.