From 17c5a0ce44dbb0062f8acc5c664762ef04eb9ad0 Mon Sep 17 00:00:00 2001
From: Vladimir Serbinenko <phcoder@gmail.com>
Date: Mon, 23 Jan 2023 11:37:19 +0100
Subject: [PATCH] SDL: Don't use SDLK_UNDO prior to its introduction in
 SDL-1.2.3

---
 backends/events/sdl/sdl-events.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/backends/events/sdl/sdl-events.cpp b/backends/events/sdl/sdl-events.cpp
index 5d702698ee8..11a8f6849d6 100644
--- a/backends/events/sdl/sdl-events.cpp
+++ b/backends/events/sdl/sdl-events.cpp
@@ -318,7 +318,9 @@ Common::KeyCode SdlEventSource::SDLToOSystemKeycode(const SDL_Keycode key) {
 	case SDLK_SYSREQ: return Common::KEYCODE_SYSREQ;
 	case SDLK_MENU: return Common::KEYCODE_MENU;
 	case SDLK_POWER: return Common::KEYCODE_POWER;
+#if SDL_VERSION_ATLEAST(1, 2, 3)
 	case SDLK_UNDO: return Common::KEYCODE_UNDO;
+#endif
 #if SDL_VERSION_ATLEAST(2, 0, 0)
 	case SDLK_SCROLLLOCK: return Common::KEYCODE_SCROLLOCK;
 	case SDLK_NUMLOCKCLEAR: return Common::KEYCODE_NUMLOCK;