Merge remote-tracking branch 'origin/5.7' into dev

Conflicts:
	config_help.txt
	configure
	src/corelib/io/qprocess_wince.cpp
	src/plugins/platforms/windows/qwindowstheme.cpp
	src/plugins/platforms/xcb/qxcbbackingstore.cpp
	tests/auto/corelib/tools/qtimezone/BLACKLIST
	tests/auto/network/socket/qudpsocket/tst_qudpsocket.cpp
	tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp

Change-Id: I26644d1cb3b78412c8ff285e2a55bea1bd641c01

1 files changed, 19 insertions, 0 deletions

diff --git a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
index 6898fa717e..d1d3738879 100644
--- a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
+++ b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
@@ -143,6 +143,7 @@ private slots:
     void exceptions();
     void noDeclarativeParentChangedOnDestruction();
     void deleteLaterInAboutToBlockHandler();
+    void mutableFunctor();
 };
 
 struct QObjectCreatedOnShutdown
@@ -6508,6 +6509,24 @@ void tst_QObject::noDeclarativeParentChangedOnDestruction()
 #endif
 }
 
+struct MutableFunctor {
+    int count;
+    MutableFunctor() : count(0) {}
+    int operator()() { return ++count; }
+};
+
+void tst_QObject::mutableFunctor()
+{
+    ReturnValue o;
+    MutableFunctor functor;
+    QCOMPARE(functor.count, 0);
+    connect(&o, &ReturnValue::returnInt, functor);
+    QCOMPARE(emit o.returnInt(0), 1);
+    QCOMPARE(emit o.returnInt(0), 2); // each emit should increase the internal count
+
+    QCOMPARE(functor.count, 0); // but the original object should have been copied at connect time
+}
+
 // Test for QtPrivate::HasQ_OBJECT_Macro
 Q_STATIC_ASSERT(QtPrivate::HasQ_OBJECT_Macro<tst_QObject>::Value);
 Q_STATIC_ASSERT(!QtPrivate::HasQ_OBJECT_Macro<SiblingDeleter>::Value);