[zeromq-dev] Error, No rule to make target 'libzmq.so' and ‘ZMQ_’ was not declared

[Ravi Joshi]

Hi,
I am trying to use ZeroMQ with ROS Indigo. I am yet not sure if the problem is related to ROS or not. Let me explain it briefly.

I am setting the ZeroMQ socket timeout option in the following way:
zmq_socket.setsockopt(ZMQ_ RCVTIMEO, &timeout, sizeof(timeout));

It is showing this error: talker_zmq.cpp:21:25: error: ‘ZMQ_’ was not declared in this scope

I also notice that the catkin_make command is showing a suspicious following error message:
make[2]: *** No rule to make target `/usr/local/lib/libzmq.so', needed by `/home/ravi/ros_ws/devel/lib/beginner_tutorials_ravi/talker_zmq'. Stop.


Below are the pastebin URLs of required files:
(1) talker_zmq.cpp: https://pastebin.com/Cyrzaa9U
(2) Erros shown in terminal: https://pastebin.com/vuHANYHV
(3) CMakeLists.txt: https://pastebin.com/p1NhPJtr(4) FindZeroMQ.cmake: https://pastebin.com/QfHfrJJJ

(5) package.xml: https://pastebin.com/5h6XaK9G



As always, thank you very much.

-
Regards
Ravi