Ports/gltron: Exit the game when SDL_QUIT is received

Ports/gltron/patches/0004-System-Make-sure-to-exit-the-loop-on-receiving-SDL_Q.patch

@@ -0,0 +1,28 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jelle Raaijmakers <jelle@gmta.nl>
+Date: Tue, 25 Apr 2023 17:53:50 +0200
+Subject: [PATCH] System: Make sure to exit the loop on receiving SDL_QUIT
+
+This is fixed in more modern adaptations, as can be seen here:
+
+https://github.com/laanwj/gltron/blob/336dbbb75afe0aed1d9faaa5bbaa867b2b13d10b/nebu/base/system.c#L135
+
+Since we work with the original source material, we better patch this
+ourselves.
+---
+ nebu/base/system.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/nebu/base/system.c b/nebu/base/system.c
+index 07a75e7b069a73a203950a4f0d0a8a345f76518a..794848e91cb22d1099d5a61e2e01974dde69861e 100644
+--- a/nebu/base/system.c
++++ b/nebu/base/system.c
+@@ -37,6 +37,8 @@ int SystemMainLoop() {
+ 				break;
+ 			case SDL_QUIT:
+ 				SystemExit();
++				// status 10 is the only way to break free from main.lua
++				SystemExitLoop(10);
+ 				break;
+ 			default:
+ 				/* ignore event */

Ports/gltron/patches/ReadMe.md

@@ -17,3 +17,14 @@ Build: Fix `char*` vs. `const char*` arguments
 These arguments are of the wrong constness, which will trip our
 compiler.
 
+## `0004-System-Make-sure-to-exit-the-loop-on-receiving-SDL_Q.patch`
+
+System: Make sure to exit the loop on receiving SDL_QUIT
+
+This is fixed in more modern adaptations, as can be seen here:
+
+https://github.com/laanwj/gltron/blob/336dbbb75afe0aed1d9faaa5bbaa867b2b13d10b/nebu/base/system.c#L135
+
+Since we work with the original source material, we better patch this
+ourselves.
+