[retro-gtk/core-fixes: 6/9] core: Make keyboard_widget_notify() static

[Adrien Plazas <aplazas src gnome org>]

commit 2a7abec01f7ed6009bec5740a549ce71636c0415
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Sun Feb 16 14:47:49 2020 +0100

    core: Make keyboard_widget_notify() static
    
    It's a private helper function and hence it should be 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 4c56253..46290c2 100644
--- a/retro-gtk/retro-core.c
+++ b/retro-gtk/retro-core.c
@@ -1699,7 +1699,7 @@ retro_core_set_controller (RetroCore       *self,
   retro_core_set_controller_port_device (self, port, controller_type, info);
 }
 
-void
+static void
 keyboard_widget_notify (RetroCore *self,
                         GObject   *keyboard_widget)
 {