MQTT

MQTT

MQ Telemetry Transport (MQTT) is a lightweight broker-based publish/subscribe messaging protocol designed to be open, simple, lightweight and easy to implement.

http://public.dhe.ibm.com/software/dw/webservices/ws-mqtt/mqtt-v3r1.html

http://www.eclipse.org/paho/

http://www.eclipse.org/proposals/technology.paho/

Dependencies

sudo apt-get install libssl-dev

mkdir mqtt cd mqtt

git clone git://git.eclipse.org/gitroot/paho/org.eclipse.paho.mqtt.c.git

cd org.eclipse.paho.mqtt.c/src org.eclipse.paho.mqtt.c/src$ make -f ../build/Makefile all

fails ...

/mqtt/org.eclipse.paho.mqtt.c/src/SSLSocket.c:128: error: ‘X509_V_ERR_DIFFERENT_CRL_SCOPE’ undeclared here (not in a function)

What dows that mean?