diff --git a/.cmake.conf b/.cmake.conf
index 4f4c0a20174..979edb2e37e 100644
--- a/.cmake.conf
+++ b/.cmake.conf
@@ -5,6 +5,7 @@
 # (directly by qtbase) we actually add the extra definitions
 if (NOT DEFINED QT_SUPERBUILD OR DEFINED QT_REPO_MODULE_VERSION)
     set(QT_EXTRA_INTERNAL_TARGET_DEFINES "QT_LEAN_HEADERS=1")
+    list(APPEND QT_EXTRA_INTERNAL_TARGET_DEFINES "QT_NO_AS_CONST=1")
 endif()
 
 set(QT_REPO_MODULE_VERSION "6.5.0")
diff --git a/src/corelib/global/qttypetraits.h b/src/corelib/global/qttypetraits.h
index 1832a1a7344..e8939e7d5ff 100644
--- a/src/corelib/global/qttypetraits.h
+++ b/src/corelib/global/qttypetraits.h
@@ -23,6 +23,8 @@ constexpr std::underlying_type_t<Enum> qToUnderlying(Enum e) noexcept
     return static_cast<std::underlying_type_t<Enum>>(e);
 }
 
+#ifndef QT_NO_AS_CONST
+
 // this adds const to non-const objects (like std::as_const)
 template <typename T>
 constexpr typename std::add_const<T>::type &qAsConst(T &t) noexcept { return t; }
@@ -30,6 +32,8 @@ constexpr typename std::add_const<T>::type &qAsConst(T &t) noexcept { return t;
 template <typename T>
 void qAsConst(const T &&) = delete;
 
+#endif // QT_NO_AS_CONST
+
 // like std::exchange
 template <typename T, typename U = T>
 constexpr T qExchange(T &t, U &&newValue)
diff --git a/src/gui/painting/qpdf.cpp b/src/gui/painting/qpdf.cpp
index 8d2e6aabc98..02fd2fdeea1 100644
--- a/src/gui/painting/qpdf.cpp
+++ b/src/gui/painting/qpdf.cpp
@@ -1790,7 +1790,7 @@ void QPdfEnginePrivate::writeDestsRoot()
 
     QHash<QString, int> destObjects;
     QByteArray xs, ys;
-    for (const DestInfo &destInfo : qAsConst(destCache)) {
+    for (const DestInfo &destInfo : std::as_const(destCache)) {
         int destObj = addXrefEntry(-1);
         xs.setNum(static_cast<double>(destInfo.coords.x()), 'f');
         ys.setNum(static_cast<double>(destInfo.coords.y()), 'f');
@@ -1808,7 +1808,7 @@ void QPdfEnginePrivate::writeDestsRoot()
     xprintf(" ");
     printString(anchors.constLast());
     xprintf("]\n/Names [\n");
-    for (const QString &anchor : qAsConst(anchors)) {
+    for (const QString &anchor : std::as_const(anchors)) {
         printString(anchor);
         xprintf(" %d 0 R\n", destObjects[anchor]);
     }
diff --git a/tests/auto/widgets/widgets/qsplitter/tst_qsplitter.cpp b/tests/auto/widgets/widgets/qsplitter/tst_qsplitter.cpp
index cbc1a258de7..ec3df1f03dc 100644
--- a/tests/auto/widgets/widgets/qsplitter/tst_qsplitter.cpp
+++ b/tests/auto/widgets/widgets/qsplitter/tst_qsplitter.cpp
@@ -920,7 +920,7 @@ void tst_QSplitter::task187373_addAbstractScrollAreas_data()
         "QTreeView"
     };
 
-    for (const auto &className : qAsConst(classNames)) {
+    for (const auto &className : std::as_const(classNames)) {
         QTest::newRow(qPrintable(className + " 1")) << className << false << true;
         QTest::newRow(qPrintable(className + " 2")) << className << true << false;
         QTest::newRow(qPrintable(className + " 3")) << className << true << true;