From 0503c24de8006fd6c94f91c74db09cda80af00c3 Mon Sep 17 00:00:00 2001
From: Mauro Vime Castillo <mvimeapps@gmail.com>
Date: Mon, 11 Jun 2018 05:46:30 +0200
Subject: [PATCH] Swift4.2 (#516)

---
 Source/Typealiases.swift | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Source/Typealiases.swift b/Source/Typealiases.swift
index 8a44151..ded96cc 100644
--- a/Source/Typealiases.swift
+++ b/Source/Typealiases.swift
@@ -25,8 +25,13 @@ import Foundation
 
 #if os(iOS) || os(tvOS)
     import UIKit
+#if swift(>=4.2)
+    typealias LayoutRelation = NSLayoutConstraint.Relation
+    typealias LayoutAttribute = NSLayoutConstraint.Attribute
+#else
     typealias LayoutRelation = NSLayoutRelation
     typealias LayoutAttribute = NSLayoutAttribute
+#endif
     typealias LayoutPriority = UILayoutPriority
 #else
     import AppKit