From 752fc3bd9a971858dbb7b51a0ef0289232e67e58 Mon Sep 17 00:00:00 2001
From: Mike Lothian <mike@fireburn.co.uk>
Date: Sat, 14 May 2022 02:01:18 +0100
Subject: [PATCH] Add functional include

--- a/tls/include/adb/tls/tls_connection.h
+++ b/tls/include/adb/tls/tls_connection.h
@@ -19,6 +19,7 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#include <functional>
 #include <string_view>
 #include <vector>