https://bugs.gentoo.org/980692
--- a/config-tests/cfgtest_QtCore.cpp
+++ b/config-tests/cfgtest_QtCore.cpp
@@ -33,2 +33,6 @@
 
+#if !defined(QT_SUPPORTS_INT128)
+    out << "PyQt_INT128\n";
+#endif
+
 #if QT_VERSION < 0x060500 || !QT_CONFIG(permissions)
--- a/sip/QtBluetooth/qbluetoothuuid.sip
+++ b/sip/QtBluetooth/qbluetoothuuid.sip
@@ -332,3 +332,5 @@
     quint32 toUInt32(bool *ok = 0) const;
+%If (!PyQt_INT128)
     quint128 toUInt128() const;
+%End
     static QString serviceClassToString(QBluetoothUuid::ServiceClassUuid uuid);
--- a/sip/QtCore/QtCoremod.sip
+++ b/sip/QtCore/QtCoremod.sip
@@ -32,2 +32,3 @@
 %Feature PyQt_qreal_double
+%Feature PyQt_INT128
 %Feature PyQt_PrintDialog