From ef61b81b0c254c750c90029a9af4b0908ceeaf1a Mon Sep 17 00:00:00 2001
From: Rado Kirov <radokirov@google.com>
Date: Wed, 23 Sep 2015 17:14:25 -0700
Subject: [PATCH] fix(bundles): add explicit format: cjs for empty files.

---
 gulpfile.js | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/gulpfile.js b/gulpfile.js
index 60a33c45ab..50b5cb59eb 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -1019,13 +1019,14 @@ gulp.task('!build.js.cjs', function() {
 
 
 var bundleConfig = {
-  paths: {
-    "*": "dist/js/prod/es5/*.js"
-  },
+  paths: {"*": "dist/js/prod/es5/*.js"},
+  // Files that end up empty after transpilation confuse system-builder
+  // and need to be explitily listed here.
+  // TODO: upgrade system builder and find a way to declare all input as cjs.
   meta: {
-    'angular2/src/router/route_definition': {
-      format: 'cjs'
-    }
+    'angular2/src/router/route_definition': {format: 'cjs'},
+    'angular2/src/core/directives/observable_list_diff': {format: 'cjs'},
+    'angular2/lifecycle_hooks': {format: 'cjs'}
   }
 };