Don't link to unused Qt modules

src/lib/app/browserwindow.cpp

@@ -80,8 +80,6 @@
 #include <QFileDialog>
 #include <QNetworkRequest>
 #include <QDesktopServices>
-#include <QPrintPreviewDialog>
-#include <QPrinter>
 #include <QWebEngineHistory>
 #include <QWebEngineSettings>
 #include <QMessageBox>
@@ -1193,6 +1191,7 @@ bool BrowserWindow::event(QEvent* event)
 
 void BrowserWindow::printPage(QWebEngineFrame* frame)
 {
+#if QTWEBENGINE_DISABLED
     QPrintPreviewDialog* dialog = new QPrintPreviewDialog(this);
     dialog->setAttribute(Qt::WA_DeleteOnClose);
     dialog->resize(800, 750);
@@ -1204,14 +1203,13 @@ void BrowserWindow::printPage(QWebEngineFrame* frame)
         connect(dialog, SIGNAL(paintRequested(QPrinter*)), weView(), SLOT(print(QPrinter*)));
     }
     else {
-#if QTWEBENGINE_DISABLED
         dialog->printer()->setDocName(QzTools::getFileNameFromUrl(QzTools::frameUrl(frame)));
 
         connect(dialog, SIGNAL(paintRequested(QPrinter*)), frame, SLOT(print(QPrinter*)));
-#endif
     }
 
     dialog->open();
+#endif
 }
 
 void BrowserWindow::savePageScreen()

src/lib/lib.pro

@@ -1,4 +1,4 @@
-QT += webenginewidgets webenginewidgets-private webchannel network widgets printsupport sql script gui-private
+QT += webenginewidgets webenginewidgets-private webchannel network widgets sql script
 
 TARGET = QupZilla
 TEMPLATE = lib

src/lib/tools/qztools.cpp

@@ -42,11 +42,9 @@
 
 #if QT_VERSION >= 0x050000
 #include <QUrlQuery>
-#include <qpa/qplatformnativeinterface.h>
-#else
-#include <QX11Info>
 #endif
 #ifdef QZ_WS_X11
+#include <QX11Info>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #endif
@@ -829,14 +827,10 @@ void* QzTools::X11Display(const QWidget* widget)
     Q_UNUSED(widget)
 
 #ifdef QZ_WS_X11
-#if QT_VERSION >= 0x050000
-    return qApp->platformNativeInterface()->nativeResourceForWindow("display", widget->windowHandle());
-#else
     return QX11Info::display();
-#endif
-#endif
-
+#else
     return 0;
+#endif
 }
 
 void QzTools::setWmClass(const QString &name, const QWidget* widget)

src/lib/webengine/webview.cpp

@@ -50,7 +50,6 @@
 #include <QWebEngineHistory>
 #include <QClipboard>
 #include <QTouchEvent>
-#include <QPrintPreviewDialog>
 
 bool WebView::s_forceContextMenuOnMouseRelease = false;
 

src/main/main.pro

@@ -1,6 +1,6 @@
 include(../defines.pri)
 
-QT += webengine webenginewidgets network widgets printsupport sql script
+QT += webenginewidgets network widgets sql script
 
 TARGET = qupzilla
 mac: TARGET = QupZilla