From 40b27f4ca6f101db49ef58070b5efb1fdef45966 Mon Sep 17 00:00:00 2001
From: Dan Burton <danburton.email@gmail.com>
Date: Sat, 1 Oct 2016 15:08:53 -0700
Subject: [PATCH] Add constraint "tttool < 1.6.1.3" per #1784

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 522d6d39..f283f54f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2549,6 +2549,7 @@ packages:
         - diagrams-cairo < 1.3.1.2
         - diagrams-rasterific < 1.3.1.9
         - diagrams-svg < 1.4.0.4
+        - tttool < 1.6.1.3
 
         # https://github.com/fpco/stackage/issues/1842
         - dependent-sum < 0.4