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qtcmakemqttqmake

How to use QtMqtt in CMake project?

To use Qt MQTT library in qmake project file (*.pro) QT += mqtt should be added.

What is CMake pandan for that?

Solution

  • Based on the official example of how to use cmake with Qt I have created the CMakeLists.txt to compile one of the official Qt Mqtt examples: Simple MQTT Client Example.

    cmake_minimum_required(VERSION 3.1.0)

project(simplemqttclient)

set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)

if(CMAKE_VERSION VERSION_LESS "3.7.0")
    set(CMAKE_INCLUDE_CURRENT_DIR ON)
endif()

find_package(Qt5 COMPONENTS Widgets Mqtt REQUIRED)

add_executable(simplemqttclient
    mainwindow.ui
    mainwindow.cpp
    main.cpp
)

target_link_libraries(simplemqttclient Qt5::Widgets Qt5::Mqtt)