From 90f72450a9b8317909e3619e75e127bb7bcf2d3d Mon Sep 17 00:00:00 2001
From: Alexey Zabelin <hello@alexeyzabelin.com>
Date: Mon, 9 Sep 2019 20:12:06 -0700
Subject: [PATCH] Add an upper bound for ansi-wl-pprint, #4816

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9217a83f..d229cc86 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4826,6 +4826,9 @@ packages:
         - llvm-hs < 9
         - llvm-hs-pure < 9
 
+        # https://github.com/commercialhaskell/stackage/issues/4816
+        - ansi-wl-pprint < 0.6.9
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of