From b41d16eb33b3b839ab76ee806525b917fba64def Mon Sep 17 00:00:00 2001
From: Luke Murphy <lukewm@riseup.net>
Date: Thu, 21 Dec 2017 10:37:38 +0100
Subject: [PATCH] Re-enable stack.

Please see https://github.com/commercialhaskell/stack/issues/3683#issuecomment-353207753.
---
 build-constraints.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 573e6356..1839447e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -985,7 +985,7 @@ packages:
         - monad-extras
         - optparse-simple
         - hpack
-        # - stack < 9.9.9  # https://github.com/commercialhaskell/stack/issues/3683
+        - stack < 9.9.9
 
     "Michael Sloan <mgsloan@gmail.com> @mgsloan":
         - th-orphans