SDL: tray, unix: make pointers g_object_ref and g_object_ref_sink static

SDL Commits
1 
From 016ba86f9368ae535930390669d770cdafa255c6 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Sun, 27 Apr 2025 11:55:10 +0300
Subject: [PATCH] tray, unix: make pointers g_object_ref and g_object_ref_sink
 static

Fixes:  https://github.com/libsdl-org/SDL/issues/12908.
---
 src/tray/unix/SDL_tray.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/tray/unix/SDL_tray.c b/src/tray/unix/SDL_tray.c
index dc2d0ca6396eb..1c305a966ca97 100644
--- a/src/tray/unix/SDL_tray.c
+++ b/src/tray/unix/SDL_tray.c
@@ -58,8 +58,8 @@ typedef enum
 static gulong (*g_signal_connect_data)(gpointer instance, const gchar *detailed_signal, GCallback c_handler, gpointer data, GClosureNotify destroy_data, GConnectFlags connect_flags);
 static void (*g_object_unref)(gpointer object);
 static gchar *(*g_mkdtemp)(gchar *template);
-gpointer (*g_object_ref_sink)(gpointer object);
-gpointer (*g_object_ref)(gpointer object);
+static gpointer (*g_object_ref_sink)(gpointer object);
+static gpointer (*g_object_ref)(gpointer object);
 
 // glib_typeof requires compiler-specific code and includes that are too complex
 // to be worth copy-pasting here