From 9398d80bfb177dd617f93c1af06f6d74917858ee Mon Sep 17 00:00:00 2001
From: Volker Fischer <corrados@users.noreply.github.com>
Date: Tue, 9 Jul 2019 09:16:38 +0200
Subject: [PATCH] added a missing header for Windows

---
 src/util.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/util.h b/src/util.h
index bf4bdb63..32d407a6 100755
--- a/src/util.h
+++ b/src/util.h
@@ -47,6 +47,7 @@
 using namespace std; // because of the library: "vector"
 #ifdef _WIN32
 # include <winsock2.h>
+# include <ws2ipdef.h>
 # include <windows.h>
 # include <mmsystem.h>
 #elif defined ( __APPLE__ ) || defined ( __MACOSX )