From 341ece5cae1f695993bfc41825329daaaff10095 Mon Sep 17 00:00:00 2001
From: Azure Chen <azure517981@gmail.com>
Date: Tue, 17 Oct 2017 16:07:46 -0500
Subject: [PATCH] Update the README.md for using swift 3

If the project still use swift 3. The config in `MessageKit.podspec` will not work.

```
s.pod_target_xcconfig = {
      "SWIFT_VERSION" => "4.0",
}
```

Add the extra `post_install` in Podfile will fix this issue.
---
 README.md | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/README.md b/README.md
index bf8874a7..cb65a2a5 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,24 @@ See [VISION.md](https://github.com/MessageKit/MessageKit/blob/master/VISION.md)
 pod 'MessageKit'
 ````
 
+If your project is still using Swift 3. Add the following code in your Podfile.
+
+````ruby
+target 'TARGET_NAME' do
+    pod 'MessageKit'
+    ...
+    post_install do |installer|
+        installer.pods_project.targets.each do |target|
+            if target.name == 'MessageKit'
+                target.build_configurations.each do |config|
+                    config.build_settings['SWIFT_VERSION'] = '4.0'
+                end
+            end
+        end
+    end
+end
+````
+
 ### [Carthage](https://github.com/Carthage/Carthage)
 
 To integrate MessageKit using Carthage, add the following to your `Cartfile`: