From 08dbb4a69ab7872189ea40bfcc970eaf6f1ed7cb Mon Sep 17 00:00:00 2001
From: Max Kellermann <max.kellermann@gmail.com>
Date: Sun, 12 Mar 2023 19:49:58 +0100
Subject: [PATCH] event/BackendEvents: relicense to BSD-2

These headers contain only trivial integer constants and these are
probably not even copyrightable.
---
 src/event/BackendEvents.hxx   | 8 ++------
 src/event/EpollEvents.hxx     | 8 ++------
 src/event/PollEvents.hxx      | 8 ++------
 src/event/WinSelectEvents.hxx | 8 ++------
 4 files changed, 8 insertions(+), 24 deletions(-)

diff --git a/src/event/BackendEvents.hxx b/src/event/BackendEvents.hxx
index 65283905b..ed183f5e3 100644
--- a/src/event/BackendEvents.hxx
+++ b/src/event/BackendEvents.hxx
@@ -1,8 +1,6 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-// Copyright The Music Player Daemon Project
+// SPDX-License-Identifier: BSD-2-Clause
 
-#ifndef EVENT_BACKEND_EVENTS_HXX
-#define EVENT_BACKEND_EVENTS_HXX
+#pragma once
 
 #include "event/Features.h"
 
@@ -22,5 +20,3 @@ using EventPollBackendEvents = EpollEvents;
 using EventPollBackendEvents = PollEvents;
 
 #endif
-
-#endif
diff --git a/src/event/EpollEvents.hxx b/src/event/EpollEvents.hxx
index cba865777..7a8563311 100644
--- a/src/event/EpollEvents.hxx
+++ b/src/event/EpollEvents.hxx
@@ -1,8 +1,6 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-// Copyright The Music Player Daemon Project
+// SPDX-License-Identifier: BSD-2-Clause
 
-#ifndef EVENT_EPOLL_EVENTS_HXX
-#define EVENT_EPOLL_EVENTS_HXX
+#pragma once
 
 #include <sys/epoll.h>
 
@@ -12,5 +10,3 @@ struct EpollEvents {
 	static constexpr unsigned ERROR = EPOLLERR;
 	static constexpr unsigned HANGUP = EPOLLHUP;
 };
-
-#endif
diff --git a/src/event/PollEvents.hxx b/src/event/PollEvents.hxx
index fee2fda6e..5b0a6076d 100644
--- a/src/event/PollEvents.hxx
+++ b/src/event/PollEvents.hxx
@@ -1,8 +1,6 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-// Copyright The Music Player Daemon Project
+// SPDX-License-Identifier: BSD-2-Clause
 
-#ifndef EVENT_POLL_EVENTS_HXX
-#define EVENT_POLL_EVENTS_HXX
+#pragma once
 
 #include <sys/poll.h>
 
@@ -12,5 +10,3 @@ struct PollEvents {
 	static constexpr unsigned ERROR = POLLERR;
 	static constexpr unsigned HANGUP = POLLHUP;
 };
-
-#endif
diff --git a/src/event/WinSelectEvents.hxx b/src/event/WinSelectEvents.hxx
index 980d6c490..7c9a7873c 100644
--- a/src/event/WinSelectEvents.hxx
+++ b/src/event/WinSelectEvents.hxx
@@ -1,8 +1,6 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-// Copyright The Music Player Daemon Project
+// SPDX-License-Identifier: BSD-2-Clause
 
-#ifndef EVENT_WINSELECT_EVENTS_HXX
-#define EVENT_WINSELECT_EVENTS_HXX
+#pragma once
 
 #include <windows.h>
 
@@ -18,5 +16,3 @@ struct WinSelectEvents {
 	static constexpr unsigned ERROR = 0;
 	static constexpr unsigned HANGUP = 0;
 };
-
-#endif