From 607b021d49c5caa7e13cf75ce42ccd29681240ec Mon Sep 17 00:00:00 2001
From: Dominic Gannaway <dg@domgan.com>
Date: Wed, 29 Mar 2017 11:42:07 +0100
Subject: [PATCH] added external babel helpers plugin

---
 package.json              | 1 +
 scripts/rollup/build.js   | 2 +-
 scripts/rollup/bundles.js | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 31df8a2c47..3aae23522d 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,7 @@
     "babel-eslint": "^7.1.0",
     "babel-jest": "^19.0.0",
     "babel-plugin-check-es2015-constants": "^6.5.0",
+    "babel-plugin-external-helpers": "^6.22.0",
     "babel-plugin-syntax-trailing-function-commas": "^6.5.0",
     "babel-plugin-transform-async-to-generator": "^6.22.0",
     "babel-plugin-transform-class-properties": "^6.11.5",
diff --git a/scripts/rollup/build.js b/scripts/rollup/build.js
index 160ac8d6fc..56f0098409 100644
--- a/scripts/rollup/build.js
+++ b/scripts/rollup/build.js
@@ -120,7 +120,7 @@ function updateBabelConfig(babelOpts, bundleType) {
       newOpts = Object.assign({}, babelOpts);
 
       // for FB, we don't want the devExpressionWithCodes plugin to run
-      newOpts.plugins = [];
+      newOpts.plugins = [require.resolve('babel-plugin-external-helpers')];
       return newOpts;
   }
 }
diff --git a/scripts/rollup/bundles.js b/scripts/rollup/bundles.js
index 57eea11ccf..5c1becc29c 100644
--- a/scripts/rollup/bundles.js
+++ b/scripts/rollup/bundles.js
@@ -24,6 +24,7 @@ const babelOptsReact = {
 const babelOptsReactART = Object.assign({}, babelOptsReact, {
   // Include JSX
   presets: [require.resolve('babel-preset-react')],
+  plugins: [require.resolve('babel-plugin-external-helpers')],
 });
 
 const bundles = [