Always build against Qt6

CMakeLists.txt

@@ -97,7 +97,7 @@ set(${PROJECT_NAME}_SOVERSION "1.5")
 
 include(FeatureSummary)
 
-option(${PROJECT_NAME}_QT6 "Build against Qt 6" OFF)
+option(${PROJECT_NAME}_QT6 "Build against Qt 6" ON)
 option(${PROJECT_NAME}_DEVELOPER_MODE "Developer Mode" OFF)
 option(${PROJECT_NAME}_PYTHON_BINDINGS "Build python bindings" OFF)
 option(${PROJECT_NAME}_QTQUICK "Build for QtQuick instead of QtWidgets" OFF)
@@ -109,6 +109,10 @@ option(${PROJECT_NAME}_WERROR "Use -Werror (will be true for developer-mode unco
 option(${PROJECT_NAME}_X11EXTRAS "On Linux, link against QtX11Extras so we can detect if the compositor supports transparency. Not applicable to other platforms or Qt6." ON)
 option(${PROJECT_NAME}_XLib "On Linux, link against XLib, for a more robust window z-order detection." OFF)
 
+set(${PROJECT_NAME}_QT6 ON)
+set(${PROJECT_NAME}_X11EXTRAS OFF)
+
+
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake/ECM/modules")
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake/KDAB/modules")

src/MainWindow.cpp

@@ -106,6 +106,12 @@ MainWindow::MainWindow(const QString &name, MainWindowOptions options,
         d->m_layout->addWidget(layoutWidget());
     }
 
+
+}
+
+
+void MainWindow::postInit(QWidget *parent, Qt::WindowFlags flags)
+{
     setCentralWidget(d->m_centralWidget);
 
     create();
@@ -116,6 +122,7 @@ MainWindow::MainWindow(const QString &name, MainWindowOptions options,
             });
 }
 
+
 MainWindow::~MainWindow()
 {
     delete d;

src/MainWindow.h

@@ -44,6 +44,8 @@ public:
     explicit MainWindow(const QString &uniqueName, MainWindowOptions options = MainWindowOption_None,
                         QWidget *parent = nullptr, Qt::WindowFlags flags = Qt::WindowFlags());
 
+    void postInit(QWidget *parent, Qt::WindowFlags flags = Qt::WindowFlags());
+
     ///@brief Destructor
     ~MainWindow() override;