Install libczmq4 by entering the following commands in the terminal:
sudo apt update sudo apt install libczmq4
Description:
High-level C binding for ZeroMQ
czmq (previously known as libzapi) provides a high-level C binding for 0MQ, a lightweight messaging library. . This library provides higher level abstractions on top of the base library, with features such as: * Work with messages as strings, individual frames, or multipart messages. * Automatic closure of any open sockets at context termination. * Automatic LINGER configuration of all sockets for context termination. * Portable API for creating child threads and ØMQ pipes to talk to them. * Simple reactor with one-off and repeated timers, and socket readers. * System clock functions for sleeping and calculating timers. * Easy API to get/set all socket options. * Includes generic hash and list containers.
Homepage: http://czmq.zeromq.org/
Version: 4.1.0-2
Section: universe/libs