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Simple MQTT Client Example

cmake_minimum_required(VERSION 3.16)
project(simplemqttclient LANGUAGES CXX)

set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTOUIC ON)

if(NOT DEFINED INSTALL_EXAMPLESDIR)
    set(INSTALL_EXAMPLESDIR "examples")
endif()

set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/mqtt/simpleclient")

find_package(Qt6 REQUIRED COMPONENTS Core Gui Mqtt Network Widgets)

qt_add_executable(simplemqttclient
    main.cpp
    mainwindow.cpp mainwindow.h mainwindow.ui
)

set_target_properties(simplemqttclient PROPERTIES
    WIN32_EXECUTABLE TRUE
    MACOSX_BUNDLE TRUE
)

target_compile_definitions(simplemqttclient PUBLIC
    QT_DEPRECATED_WARNINGS
)

target_link_libraries(simplemqttclient PUBLIC
    Qt::Core
    Qt::Gui
    Qt::Mqtt
    Qt::Network
)

target_link_libraries(simplemqttclient PUBLIC Qt::Widgets)

if((QT_MAJOR_VERSION GREATER 4))
    target_link_libraries(simplemqttclient PUBLIC
        Qt::Widgets
    )
endif()

install(TARGETS simplemqttclient
    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"