2 files changed, 11 insertions, 0 deletions
diff --git a/src/gui/image/qbitmap.cpp b/src/gui/image/qbitmap.cpp
index 54a4dc646b..e8405a6d11 100644
--- a/src/gui/image/qbitmap.cpp
+++ b/src/gui/image/qbitmap.cpp
@@ -196,6 +196,8 @@ QBitmap &QBitmap::operator=(const QPixmap &pixmap)
     return *this;
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+
 /*!
   Destroys the bitmap.
 */
@@ -203,6 +205,8 @@ QBitmap::~QBitmap()
 {
 }
 
+#endif
+
 /*!
     \fn void QBitmap::swap(QBitmap &other)
     \since 4.8
diff --git a/src/gui/image/qbitmap.h b/src/gui/image/qbitmap.h
index 878aeaafa3..68727e74b5 100644
--- a/src/gui/image/qbitmap.h
+++ b/src/gui/image/qbitmap.h
@@ -55,7 +55,14 @@ public:
     QBitmap(int w, int h);
     explicit QBitmap(const QSize &);
     explicit QBitmap(const QString &fileName, const char *format = Q_NULLPTR);
+    // ### Qt 6: don't inherit QPixmap
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+    QBitmap(const QBitmap &other) : QPixmap(other) {}
+    // QBitmap(QBitmap &&other) : QPixmap(std::move(other)) {} // QPixmap doesn't, yet, have a move ctor
+    QBitmap &operator=(const QBitmap &other) { QPixmap::operator=(other); return *this; }
+    QBitmap &operator=(QBitmap &&other) Q_DECL_NOTHROW { QPixmap::operator=(std::move(other)); return *this; }
     ~QBitmap();
+#endif
 
     QBitmap &operator=(const QPixmap &);
     inline void swap(QBitmap &other) { QPixmap::swap(other); } // prevent QBitmap<->QPixmap swaps