start mqtt client (based on paho.mqtt.c), basically works

3rd/paho.mqtt.c/cmake-build.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+set -e
+
+rm -rf build.paho
+mkdir build.paho
+cd build.paho
+echo "travis build dir $TRAVIS_BUILD_DIR pwd $PWD with OpenSSL root $OPENSSL_ROOT_DIR"
+cmake -DPAHO_BUILD_STATIC=$PAHO_BUILD_STATIC -DPAHO_BUILD_SHARED=$PAHO_BUILD_SHARED -DCMAKE_BUILD_TYPE=Debug -DPAHO_WITH_SSL=TRUE -DOPENSSL_ROOT_DIR=$OPENSSL_ROOT_DIR -DPAHO_BUILD_DOCUMENTATION=FALSE -DPAHO_BUILD_SAMPLES=TRUE -DPAHO_HIGH_PERFORMANCE=$PAHO_HIGH_PERFORMANCE -DPAHO_USE_SELECT=$PAHO_USE_SELECT ..
+cmake --build .
+python3 ../test/mqttsas.py &
+ctest -VV --timeout 600
+killall python3 || true
+sleep 3 # allow broker time to terminate and report
+#killall mosquitto
+cpack --verbose
+