[retro-gtk/core-fixes: 7/9] core: Make controller_state_changed_cb() static

[Adrien Plazas <aplazas src gnome org>]

commit 349e25477b71d125e438d2b6e83f86a0b6c53f89
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Sun Feb 16 15:16:13 2020 +0100

    core: Make controller_state_changed_cb() static

 retro-gtk/retro-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/retro-gtk/retro-core.c b/retro-gtk/retro-core.c
index 46290c2..fadb290 100644
--- a/retro-gtk/retro-core.c
+++ b/retro-gtk/retro-core.c
@@ -1585,7 +1585,7 @@ default_controller_state_changed_cb (RetroController                *controller,
   retro_controller_state_unlock (info->state);
 }
 
-void
+static void
 controller_state_changed_cb (RetroController         *controller,
                              RetroCoreControllerInfo *info)
 {