From 1595d3672132d1eb4df692487eb77caf99a1bc73 Mon Sep 17 00:00:00 2001
From: Tong He <hetong007@gmail.com>
Date: Tue, 16 Jun 2015 14:22:51 -0700
Subject: [PATCH] ask travis to compile vignette

---
 .travis.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 2910c15b8..b3475bb23 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,8 @@ language: c
 env:
     global:
         - _R_CHECK_TIMINGS_=0
+        - R_BUILD_ARGS=""
+        - R_CHECK_ARGS=""
 
 warnings_are_errors: false