From 603edf3b5b5d38f900a143b5857a5110fdc1eaeb Mon Sep 17 00:00:00 2001
From: Jonny Buchanan <jonathan.buchanan@gmail.com>
Date: Mon, 16 Jan 2017 06:46:40 +1000
Subject: [PATCH] Use babel-preset-env when transpiling to lib/ targeting
 Node.js v4

#233
---
 CHANGES.md   |  1 +
 package.json | 10 ++++++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/CHANGES.md b/CHANGES.md
index 1f9a57c6..2398edf8 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -7,6 +7,7 @@
 
 **Internal:**
 
+- Use [`babel-preset-env`](https://github.com/babel/babel-preset-env/) when transpiling to `lib/`, targeting Node.js v4.
 - Use ES2015 `String` methods available in Node.js v4 instead of `String.prototype.indexOf` comparisons.
 
 # 0.14.1 / 2017-01-13
diff --git a/package.json b/package.json
index d7c73448..e98ef357 100644
--- a/package.json
+++ b/package.json
@@ -120,6 +120,7 @@
     "webpack-md5-hash": "0.0.5"
   },
   "devDependencies": {
+    "babel-preset-env": "1.1.8",
     "cross-env": "3.1.4",
     "eslint-config-jonnybuchanan": "4.8.0",
     "eventsource": "0.2.1",
@@ -141,8 +142,13 @@
   ],
   "babel": {
     "presets": [
-      ["es2015", {"loose": true}],
-      "stage-2"
+      ["env", {
+        "loose": true,
+        "targets": {
+          "node": 4
+        }
+      }],
+      "stage-3"
     ],
     "plugins": [
       "add-module-exports"