From 9dd4548a8d226bc40feabf204b71399e373e8ce9 Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@snoyman.com>
Date: Thu, 15 Dec 2016 10:12:09 +0200
Subject: [PATCH] Upper bound for #2136

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index ed0764b4..fc701c5a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2717,6 +2717,9 @@ packages:
 
         # https://github.com/fpco/stackage/issues/2032
         - datasets < 0.2.2
+
+        # https://github.com/fpco/stackage/issues/2136
+        - X11 < 1.7
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of