Add BUILD.gn to func package
diff --git a/BUILD.gn b/BUILD.gn
new file mode 100644
index 0000000..d5d9656
--- /dev/null
+++ b/BUILD.gn
@@ -0,0 +1,13 @@
+# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+# for details. All rights reserved. Use of this source code is governed by a
+# BSD-style license that can be found in the LICENSE file.
+
+import("//build/dart/dart_package.gni")
+
+dart_package("func") {
+  package_name = "func"
+
+  source_dir = "lib"
+
+  disable_analysis = true
+}