From a8ddf1a7296e2d28b36231a391807226a7329ae4 Mon Sep 17 00:00:00 2001
From: David Edmundson <davidedmundson@kde.org>
Date: Mon, 14 Jun 2021 12:45:37 +0100
Subject: [PATCH 26/30] Fix build

1b5e43a593e917610e6245f7a272ac081c508ba4 relied on a patch that we can't
backport.

This adds that extra internal boolean backporting just the tiny part of
d6ac8cf6.
---
 src/client/global/qwaylandclientextension.cpp | 5 ++++-
 src/client/global/qwaylandclientextension_p.h | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/client/global/qwaylandclientextension.cpp b/src/client/global/qwaylandclientextension.cpp
index 797b06fe..edccfe63 100644
--- a/src/client/global/qwaylandclientextension.cpp
+++ b/src/client/global/qwaylandclientextension.cpp
@@ -74,7 +74,10 @@ void QWaylandClientExtensionPrivate::handleRegistryGlobal(void *data, ::wl_regis
 void QWaylandClientExtension::addRegistryListener()
 {
     Q_D(QWaylandClientExtension);
-    d->waylandIntegration->display()->addRegistryListener(&QWaylandClientExtensionPrivate::handleRegistryGlobal, this);
+    if (!d->registered) {
+        d->waylandIntegration->display()->addRegistryListener(&QWaylandClientExtensionPrivate::handleRegistryGlobal, this);
+        d->registered = true;
+    }
 }
 
 QWaylandClientExtension::QWaylandClientExtension(const int ver)
diff --git a/src/client/global/qwaylandclientextension_p.h b/src/client/global/qwaylandclientextension_p.h
index 69cc46a0..9091efbe 100644
--- a/src/client/global/qwaylandclientextension_p.h
+++ b/src/client/global/qwaylandclientextension_p.h
@@ -68,6 +68,7 @@ public:
     QtWaylandClient::QWaylandIntegration *waylandIntegration = nullptr;
     int version = -1;
     bool active = false;
+    bool registered = false;
 };
 
 class Q_WAYLAND_CLIENT_EXPORT QWaylandClientExtensionTemplatePrivate : public QWaylandClientExtensionPrivate
-- 
2.31.1