From d908c6162c30572864f2d0943680034a42268655 Mon Sep 17 00:00:00 2001
From: Marc Mutz <marc.mutz@qt.io>
Date: Tue, 11 Jun 2024 12:01:12 +0200
Subject: [PATCH] qfuturewatcher_p.h: fix missing qfuturewatcher.h include
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Extending headersclean_check to private headers has shown that
Q_DECLARE_PUBLIC needs to know the Public class in-size, so a
forward-declaration is not enough. Says Clang:

  qfuturewatcher_p.h:31:5: error: static_cast from 'QObject *' to 'QFutureWatcherBase *', which are not related by inheritance, is not allowed
      Q_DECLARE_PUBLIC(QFutureWatcherBase)
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Amends the start of the public history.

Pick-to: 6.7 6.5 6.2 5.15
Task-number: QTBUG-126219
Change-Id: I1e132aaa844f5c87d57446e8818280fd141d2b1e
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
(cherry picked from commit b58d926090620079f602f4f2ce9f17fe7025c962)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/corelib/thread/qfuturewatcher_p.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/corelib/thread/qfuturewatcher_p.h b/src/corelib/thread/qfuturewatcher_p.h
index 6d6bf29774..7b14865093 100644
--- a/src/corelib/thread/qfuturewatcher_p.h
+++ b/src/corelib/thread/qfuturewatcher_p.h
@@ -15,6 +15,8 @@
 // We mean it.
 //
 
+#include <QtCore/qfuturewatcher.h>
+
 #include "qfutureinterface_p.h"
 #include <qlist.h>
 
@@ -24,7 +26,6 @@ QT_REQUIRE_CONFIG(future);
 
 QT_BEGIN_NAMESPACE
 
-class QFutureWatcherBase;
 class QFutureWatcherBasePrivate : public QObjectPrivate,
                                   public QFutureCallOutInterface
 {