From ce978f9eadfce1d8f403501712312b4e0418e9b8 Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@fpcomplete.com>
Date: Mon, 6 Jul 2015 18:17:10 +0300
Subject: [PATCH] Upper bound for #666

---
 build-constraints.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index fe895a14..0c6abea5 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1172,6 +1172,9 @@ packages:
         # https://github.com/fpco/stackage/issues/665
         - iproute < 1.5
 
+        # https://github.com/fpco/stackage/issues/666
+        - tar < 0.4.2
+
 # Package flags are applied to individual packages, and override the values of
 # global-flags
 package-flags: