[gtk+] wayland: Mark private function as static

[Emmanuele Bassi <ebassi src gnome org>]

commit 7619c9c73998285ad4afbede5ec232a318b296c9
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri Apr 28 22:47:29 2017 +0100

    wayland: Mark private function as static

 gdk/wayland/gdkdevice-wayland.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gdk/wayland/gdkdevice-wayland.c b/gdk/wayland/gdkdevice-wayland.c
index ddcba05..138b65b 100644
--- a/gdk/wayland/gdkdevice-wayland.c
+++ b/gdk/wayland/gdkdevice-wayland.c
@@ -1663,7 +1663,7 @@ pointer_handle_button (void              *data,
 
 #ifdef G_ENABLE_DEBUG
 
-const char *
+static const char *
 get_axis_name (uint32_t axis)
 {
   switch (axis)