===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/tty-keys.c,v
retrieving revision 1.149
retrieving revision 1.150
diff -u -r1.149 -r1.150
--- src/usr.bin/tmux/tty-keys.c	2021/08/13 06:52:51	1.149
+++ src/usr.bin/tmux/tty-keys.c	2021/08/13 07:37:58	1.150
@@ -1,4 +1,4 @@
-/* $OpenBSD: tty-keys.c,v 1.149 2021/08/13 06:52:51 nicm Exp $ */
+/* $OpenBSD: tty-keys.c,v 1.150 2021/08/13 07:37:58 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -57,6 +57,17 @@
 		    size_t *);
 static int	tty_keys_extended_device_attributes(struct tty *, const char *,
 		    size_t, size_t *);
+
+/* A key tree entry. */
+struct tty_key {
+	char		 ch;
+	key_code	 key;
+
+	struct tty_key	*left;
+	struct tty_key	*right;
+
+	struct tty_key	*next;
+};
 
 /* Default raw keys. */
 struct tty_default_key_raw {