From 1fea9897bfba2098c152a68ececca4d89e6e4946 Mon Sep 17 00:00:00 2001
From: Lukas Holecek <hluk@email.cz>
Date: Wed, 18 Jan 2023 09:58:40 +0100
Subject: [PATCH] Wayland: Fix pasting to some XWayland apps

Fixes #2233
---
 src/platform/x11/systemclipboard/waylandclipboard.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/platform/x11/systemclipboard/waylandclipboard.cpp b/src/platform/x11/systemclipboard/waylandclipboard.cpp
index 09551bbdcd..fc55e29683 100644
--- a/src/platform/x11/systemclipboard/waylandclipboard.cpp
+++ b/src/platform/x11/systemclipboard/waylandclipboard.cpp
@@ -21,6 +21,7 @@
 #include <qtwaylandclientversion.h>
 
 #include <errno.h>
+#include <fcntl.h>
 #include <poll.h>
 #include <signal.h>
 #include <string.h>
@@ -83,6 +84,8 @@ class SendThread : public QThread {
             sigemptyset(&action.sa_mask);
             action.sa_flags = 0;
             sigaction(SIGPIPE, &action, &oldAction);
+            // Unset O_NONBLOCK
+            fcntl(m_fd, F_SETFL, 0);
             const qint64 written = c.write(m_data);
             sigaction(SIGPIPE, &oldAction, nullptr);
             c.close();