From 61b86349a97a3f66c304720e5af0faffbdedb8d3 Mon Sep 17 00:00:00 2001
From: Kazu Yamamoto <kazu@iij.ad.jp>
Date: Fri, 4 Jul 2014 11:45:25 +0900
Subject: [PATCH] yet another workaround for #277.

---
 .travis.yml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 7ca0fcf..95003d6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,8 +17,9 @@ before_install:
 
 install:
   - cabal update
-  - cabal install happy
-  - export PATH=$HOME/.cabal/bin:$PATH
+  - mkdir sandbox
+  - (cd sandbox; cabal sandbox init; cabal install happy)
+  - export PATH=$PWD/.cabal-sandbox/bin:$PATH
   - happy --version
   - cabal install --only-dependencies --enable-tests