From 9a1e46145001478ec13c1d9b913b675687d9ad25 Mon Sep 17 00:00:00 2001
From: Ilya Lavrenov <ilya.lavrenov@itseez.com>
Date: Mon, 3 Feb 2014 14:47:32 +0400
Subject: [PATCH] fix for PR 2166

---
 modules/imgproc/src/featureselect.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/imgproc/src/featureselect.cpp b/modules/imgproc/src/featureselect.cpp
index ff923a3e9..c5ed3e561 100644
--- a/modules/imgproc/src/featureselect.cpp
+++ b/modules/imgproc/src/featureselect.cpp
@@ -45,6 +45,7 @@
 #include <cstdio>
 #include <vector>
 #include <iostream>
+#include <functional>
 
 namespace cv
 {