From 02681bc3521ce7bc3116832b60f8c41d96e7dac7 Mon Sep 17 00:00:00 2001
From: Steven Newbury <steve@snewbury.org.uk>
Date: Sun, 19 Feb 2017 08:00:00 +0000
Subject: [PATCH] Add missing "functional" include

Building fails on GCC7 without an explicit
---
 .../Core/InputCommon/ControllerInterface/ControllerInterface.h   | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Source/Core/InputCommon/ControllerInterface/ControllerInterface.h b/Source/Core/InputCommon/ControllerInterface/ControllerInterface.h
index d9d85cdd77..23afab7d67 100644
--- a/Source/Core/InputCommon/ControllerInterface/ControllerInterface.h
+++ b/Source/Core/InputCommon/ControllerInterface/ControllerInterface.h
@@ -5,6 +5,7 @@
 #pragma once
 
 #include <algorithm>
+#include <functional>
 #include <map>
 #include <sstream>
 #include <string>