SDL: Allow defining SDL_MAIN_HANDLED on iOS if you're using another runtime that provides an application delegate

From 3a4b217d6c26df04f4afe05d5f0eec5edd14afef Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Sat, 31 Jul 2021 12:44:29 -0700
Subject: [PATCH] Allow defining SDL_MAIN_HANDLED on iOS if you're using
 another runtime that provides an application delegate

---
 src/main/uikit/SDL_uikit_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/main/uikit/SDL_uikit_main.c b/src/main/uikit/SDL_uikit_main.c
index 5717d0e804..702f67391b 100644
--- a/src/main/uikit/SDL_uikit_main.c
+++ b/src/main/uikit/SDL_uikit_main.c
@@ -6,6 +6,7 @@
 /* Include the SDL main definition header */
 #include "SDL_main.h"
 
+#ifndef SDL_MAIN_HANDLED
 #ifdef main
 #undef main
 #endif
@@ -15,5 +16,6 @@ main(int argc, char *argv[])
 {
     return SDL_UIKitRunApp(argc, argv, SDL_main);
 }
+#endif /* !SDL_MAIN_HANDLED */
 
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