SDL: unix: Unref SDL_gtk context on quit

SDL Commits
1 
From 0c5f7f6a330ed308748f2162575fdaf48c1a54f5 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Wed, 12 Nov 2025 11:42:02 -0800
Subject: [PATCH] unix: Unref SDL_gtk context on quit

---
 src/core/unix/SDL_gtk.c | 7 ++++++-
 src/core/unix/SDL_gtk.h | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/core/unix/SDL_gtk.c b/src/core/unix/SDL_gtk.c
index 41a2d2251ecd9..9b0c879b901b3 100644
--- a/src/core/unix/SDL_gtk.c
+++ b/src/core/unix/SDL_gtk.c
@@ -64,6 +64,11 @@ static gulong signal_connect(gpointer instance, const gchar *detailed_signal, vo
 
 static void QuitGtk(void)
 {
+    if (sdl_main_context) {
+        gtk.g.main_context_unref(sdl_main_context);
+        sdl_main_context = NULL;
+    }
+
     SDL_UnloadObject(libgdk);
     SDL_UnloadObject(libgtk);
 
@@ -137,6 +142,7 @@ static bool InitGtk(void)
     SDL_GTK_SYM(gtk, libgdk, g, main_context_push_thread_default);
     SDL_GTK_SYM(gtk, libgdk, g, main_context_pop_thread_default);
     SDL_GTK_SYM(gtk, libgdk, g, main_context_new);
+    SDL_GTK_SYM(gtk, libgdk, g, main_context_unref);
     SDL_GTK_SYM(gtk, libgdk, g, main_context_acquire);
     SDL_GTK_SYM(gtk, libgdk, g, main_context_iteration);
 
@@ -192,7 +198,6 @@ void SDL_Gtk_Quit(void)
 
     QuitGtk();
     SDL_zero(gtk);
-    sdl_main_context = NULL;
 
     SDL_SetInitialized(&gtk_init, false);
 }
diff --git a/src/core/unix/SDL_gtk.h b/src/core/unix/SDL_gtk.h
index 73fef5a82038b..0287fe0b8f0ed 100644
--- a/src/core/unix/SDL_gtk.h
+++ b/src/core/unix/SDL_gtk.h
@@ -88,6 +88,7 @@ typedef struct SDL_GtkContext
 		void (*main_context_push_thread_default)(GMainContext *context);
 		void (*main_context_pop_thread_default)(GMainContext *context);
 		GMainContext *(*main_context_new)(void);
+		void (*main_context_unref)(GMainContext *context);
 		gboolean (*main_context_acquire)(GMainContext *context);
 		gboolean (*main_context_iteration)(GMainContext *context, gboolean may_block);
 	} g;