Bitcoin Core ZMQ
Bitcoin Core
with
ZeroMQ
bitcoin/doc/zmq.md at 794f971607f28456e24fa2d39e4cfbbc8b97eb71 · bitcoin/bitcoin
The ZeroMQ feature is automatically compiled in if the necessary prerequisites are found.
Refer each build docs for the way to install prerequites
bitcoin/doc/build-osx.md at 794f971607f28456e24fa2d39e4cfbbc8b97eb71 · bitcoin/bitcoin
To check if ZMQ is enabled or not,
getzmqnotifications
can be used.