From dd54a109d18c10e616c5dddd1b2aa84c1ba266a3 Mon Sep 17 00:00:00 2001
From: Maksim Orlovich <m_orlovich@hotmail.com>
Date: Tue, 31 Jul 2018 14:34:41 -0500
Subject: [PATCH] NSNotificationCenter.addObserver(forName:object:queue:using:)
 on Linux Swift >4.0

---
 Package.swift                              | 1 +
 Sources/NSNotificationCenter+Promise.swift | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/Package.swift b/Package.swift
index c5319d0..6072eb0 100644
--- a/Package.swift
+++ b/Package.swift
@@ -5,6 +5,7 @@ let package = Package(
     dependencies: [
         .Package(url: "https://github.com/mxcl/PromiseKit.git", majorVersion: 6)
     ],
+    swiftLanguageVersions: [3, 4],
     exclude: [
         "Sources/NSNotificationCenter+AnyPromise.m",
         "Sources/NSTask+AnyPromise.m",
diff --git a/Sources/NSNotificationCenter+Promise.swift b/Sources/NSNotificationCenter+Promise.swift
index ad1113e..2db6a8d 100644
--- a/Sources/NSNotificationCenter+Promise.swift
+++ b/Sources/NSNotificationCenter+Promise.swift
@@ -25,7 +25,11 @@ extension NotificationCenter {
       #if !os(Linux)
         let id = addObserver(forName: name, object: object, queue: nil, using: fulfill)
       #else
-        let id = addObserver(forName: name, object: object, queue: nil, usingBlock: fulfill)
+        #if swift(>=4.0.1)
+          let id = addObserver(forName: name, object: object, queue: nil, using: fulfill)
+        #else
+          let id = addObserver(forName: name, object: object, queue: nil, usingBlock: fulfill)
+        #endif
       #endif
         promise.done { _ in self.removeObserver(id) }
         return promise