From b31469c38d97dafd92afb98a61a634879b46d28c Mon Sep 17 00:00:00 2001
From: lorenz <looooo@users.noreply.github.com>
Date: Wed, 25 Sep 2019 16:35:15 +0200
Subject: [PATCH] add missing header

ref.: https://forum.freecadweb.org/viewtopic.php?p=336566#p336566
---
 src/Mod/Mesh/App/Core/Approximation.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Mod/Mesh/App/Core/Approximation.cpp b/src/Mod/Mesh/App/Core/Approximation.cpp
index ee37c0b2a1..2004e96389 100644
--- a/src/Mod/Mesh/App/Core/Approximation.cpp
+++ b/src/Mod/Mesh/App/Core/Approximation.cpp
@@ -26,6 +26,7 @@
 #ifndef _PreComp_
 # include <algorithm>
 # include <cstdlib>
+# include <iterator> 
 #endif
 
 #include "Approximation.h"