SDL: Make sure that we quit if we get a terminating event

SDL Commits
1 
From a432abf4cc275ded95def1412ac95eee42f08948 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Thu, 17 Oct 2024 16:38:07 -0700
Subject: [PATCH] Make sure that we quit if we get a terminating event

This covers the case where the application didn't handle the quit or terminating event, we still need the main loop to finish.
---
 src/main/SDL_main_callbacks.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/SDL_main_callbacks.c b/src/main/SDL_main_callbacks.c
index 60316c0943981..0a6e6854f55d1 100644
--- a/src/main/SDL_main_callbacks.c
+++ b/src/main/SDL_main_callbacks.c
@@ -75,6 +75,11 @@ static bool SDLCALL SDL_MainCallbackEventWatcher(void *userdata, SDL_Event *even
         // Make sure any currently queued events are processed then dispatch this before continuing
         SDL_DispatchMainCallbackEvents();
         SDL_DispatchMainCallbackEvent(event);
+
+        // Make sure that we quit if we get a terminating event
+        if (event->type == SDL_EVENT_TERMINATING) {
+            SDL_CompareAndSwapAtomicInt(&apprc, SDL_APP_CONTINUE, SDL_APP_SUCCESS);
+        }
     } else {
         // We'll process this event later from the main event queue
     }