Add QT_VERSION check for new QLabel::pixmap()

core/libs/dialogs/dconfigdlgwidgets.cpp

@@ -256,7 +256,15 @@ QString DConfigDlgTitle::comment() const
 
 QPixmap DConfigDlgTitle::pixmap() const
 {
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
+
     return d->imageLabel->pixmap(Qt::ReturnByValue);
+
+#else
+
+    return *d->imageLabel->pixmap();
+
+#endif
 }
 
 void DConfigDlgTitle::setBuddy(QWidget* const buddy)

core/libs/widgets/layout/dexpanderbox.cpp

@@ -606,7 +606,15 @@ void DLabelExpander::setIcon(const QIcon& icon)
 
 QIcon DLabelExpander::icon() const
 {
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
+
     return QIcon(d->pixmapLabel->pixmap(Qt::ReturnByValue));
+
+#else
+
+  return QIcon(*d->pixmapLabel->pixmap());
+
+#endif
 }
 
 void DLabelExpander::setWidget(QWidget* const widget)