Hello everyone! I could solve the problem I posted weeks ago. I'm not sure how to attach or respond to my own posted message so I'm doing this with the same subject....
I resolved the problem.... The clue was in the CMakeLists.txt: 1. Download and install the packet:https://github.com/zeromq/cppzmq. This will bring the zmq.hpp library and the ZeroMQconfig.cmake 2. Configure the CMakeLists.txt located in the top (${SOURCE_DIRECTORY}). Add find_package(ZeroMQ) in the # Find gnuradio build dependencies. 3. Configure the CMakeLists.txt located in the /lib. In target_link_libraries includes zmq. Build your OOT block as normal and It will recognize the zmq sockets and will disappear the problem :)
