From 7a3953cc2587d2204216681ff188fa8cec55f449 Mon Sep 17 00:00:00 2001
From: "Noon, Christian" <christian.noon@nike.com>
Date: Sun, 5 Oct 2014 16:29:19 -0700
Subject: [PATCH] Fixed compiler error on Xcode 6.1 for NilLiteralConvertible
 protocol conformance.

---
 Snappy/ConstraintAttributes.swift | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Snappy/ConstraintAttributes.swift b/Snappy/ConstraintAttributes.swift
index 36c566b..ae7fa4d 100644
--- a/Snappy/ConstraintAttributes.swift
+++ b/Snappy/ConstraintAttributes.swift
@@ -38,6 +38,9 @@ internal struct ConstraintAttributes: RawOptionSetType, BooleanType {
     internal init(_ rawValue: UInt) {
         self.init(rawValue: rawValue)
     }
+    internal init(nilLiteral: ()) {
+        self.rawValue = 0
+    }
     
     internal private(set) var rawValue: UInt
     internal static var allZeros: ConstraintAttributes { return self(0) }