Сборка финального проекта Qt/QML

#include <QGuiApplication>
#include <QQmlApplicationEngine>

int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);

    QQmlApplicationEngine engine;
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
    if (engine.rootObjects().isEmpty())
        return -1;

    return app.exec();
}

import QtQuick 2.5
import QtQuick.Controls 1.0

ApplicationWindow {
    id: root

    visible: true
    width: 500
    height: 300
    title: "QtWindow"

    Button {
        anchors.centerIn: parent
        text: "Push me"
        onClicked: root.color = "blue"
    }
}

TEMPLATE = app
QT += qml quick
CONFIG += c++11
SOURCES += main.cpp
RESOURCES += qml.qrc
QML_IMPORT_PATH =
QML_DESIGNER_IMPORT_PATH =
DEFINES += QT_DEPRECATED_WARNINGS

qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target