Use #define WL_HIDE_DEPRECATED to avoid deprecated warnings for wl_buffer
diff --git a/src/compositor.h b/src/compositor.h
index 57b206e..7fbc4b3 100644
--- a/src/compositor.h
+++ b/src/compositor.h
@@ -30,6 +30,8 @@
 
 #include <pixman.h>
 #include <xkbcommon/xkbcommon.h>
+
+#define WL_HIDE_DEPRECATED
 #include <wayland-server.h>
 
 #include "version.h"