-- Escriptori --

git clone git://code.qt.io/qt/qtmqtt.git
cd qtmqtt
mkdir build
cd build
/home/jordi/bin/Qt/5.11.2/gcc_64/bin/qmake -r ..
make
sudo make install


-- Android --

jordi@ecat-debian:~/Android$ ln -s /home/jordi/Android/android-ndk-r13/ /opt/android/android-ndk-r10e

git clone git://code.qt.io/qt/qtmqtt.git
cd qtmqtt
mkdir build
cd build
/home/jordi/bin/Qt/5.11.2/android_armv7/bin/qmake -r ..
make
sudo make install


-- Per a Finestrots: --

https://forum.qt.io/topic/87784/qtmqtt-module-installation-and-linking-problem/4


I solved with add library path to pro file as :

LIBS +=-L/usr/local/Cellar/qt/5.10.0_1/lib

One more question:

Is the qtmqtt is a good way to send binary data ie: 80K images which captured by camera (object detection)?