From 8aaf679406fca3922cb69b06f4509f05f9a8d9e7 Mon Sep 17 00:00:00 2001
From: David Capello <david@igarastudio.com>
Date: Fri, 31 May 2019 14:10:56 -0300
Subject: [PATCH] Add missing <algorithm> header to use std::sort()

---
 src/doc/algorithm/polygon.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/doc/algorithm/polygon.cpp b/src/doc/algorithm/polygon.cpp
index 46ed91d0a..892e4ce9c 100644
--- a/src/doc/algorithm/polygon.cpp
+++ b/src/doc/algorithm/polygon.cpp
@@ -14,6 +14,7 @@
 
 #include "gfx/point.h"
 
+#include <algorithm>
 #include <vector>
 
 namespace doc {