Merge remote-tracking branch 'origin/5.13' into 5.14

Change-Id: I31c1c469c00016f1bd21ecfab39794df372e56f2

src/corelib/global/qlibraryinfo.cpp

@@ -851,10 +851,14 @@ QT_END_NAMESPACE
 
 #include "private/qcoreapplication_p.h"
 
+QT_WARNING_DISABLE_GCC("-Wattributes")
+QT_WARNING_DISABLE_CLANG("-Wattributes")
+QT_WARNING_DISABLE_INTEL(2621)
+
 extern const char qt_core_interpreter[] __attribute__((section(".interp")))
     = ELF_INTERPRETER;
 
-extern "C" void qt_core_boilerplate();
+extern "C" void qt_core_boilerplate() __attribute__((force_align_arg_pointer));
 void qt_core_boilerplate()
 {
     printf("This is the QtCore library version " QT_BUILD_STR "\n"

src/corelib/tools/qlist.h

@@ -1051,7 +1051,7 @@ int lastIndexOf(const QList<T> &list, const U &u, int from)
         Node *n = reinterpret_cast<Node *>(list.p.at(from + 1));
         while (n-- != b) {
             if (n->t() == u)
-                return typename QList<T>::difference_type(n - b);
+                return int(n - b);
         }
     }
     return -1;

src/widgets/itemviews/qabstractitemview.cpp

@@ -1776,8 +1776,8 @@ void QAbstractItemView::mousePressEvent(QMouseEvent *event)
     QItemSelectionModel::SelectionFlags command = selectionCommand(index, event);
     d->noSelectionOnMousePress = command == QItemSelectionModel::NoUpdate || !index.isValid();
     QPoint offset = d->offset();
+    d->pressedPosition = pos + offset;
     if ((command & QItemSelectionModel::Current) == 0) {
-        d->pressedPosition = pos + offset;
         d->currentSelectionStartIndex = index;
     }
     else if (!d->currentSelectionStartIndex.isValid())

src/widgets/itemviews/qtreewidget.cpp

@@ -748,11 +748,14 @@ QMimeData *QTreeModel::internalMimeData()  const
 
 QMimeData *QTreeModel::mimeData(const QModelIndexList &indexes) const
 {
-    QList<QTreeWidgetItem*> items;
-    for (const auto &index : indexes) {
-        if (index.column() == 0) // only one item per row
-            items << item(index);
-    }
+    QList<QTreeWidgetItem *> items;
+    std::transform(indexes.begin(), indexes.end(), std::back_inserter(items),
+                   [this](const QModelIndex &idx) -> QTreeWidgetItem * { return item(idx); });
+
+    // Ensure we only have one item as an item may have more than
+    // one index selected if there is more than one column
+    std::sort(items.begin(), items.end());
+    items.erase(std::unique(items.begin(), items.end()), items.end());
 
     // cachedIndexes is a little hack to avoid copying from QModelIndexList to
     // QList<QTreeWidgetItem*> and back again in the view

src/widgets/kernel/qgesturemanager.cpp

@@ -133,6 +133,7 @@ Qt::GestureType QGestureManager::registerGestureRecognizer(QGestureRecognizer *r
 void QGestureManager::unregisterGestureRecognizer(Qt::GestureType type)
 {
     QList<QGestureRecognizer *> list = m_recognizers.values(type);
+    m_recognizers.remove(type);
     foreach (QGesture *g, m_gestureToRecognizer.keys()) {
         QGestureRecognizer *recognizer = m_gestureToRecognizer.value(g);
         if (list.contains(recognizer)) {