From 0c3982815ebaf3d18c75b973d0b3d1825a2c0174 Mon Sep 17 00:00:00 2001
From: Dan Burton <danburton.email@gmail.com>
Date: Tue, 23 Oct 2018 14:14:48 -0400
Subject: [PATCH] Attempt to restore mpi-hs, see #4068

---
 build-constraints.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 015b85f4..544aedf2 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -9,7 +9,7 @@ cabal-format-version: "2.2"
 packages:
 
     "Erik Schnetter <schnetter@gmail.com> @eschnett": 
-        - mpi-hs < 0 # https://github.com/commercialhaskell/stackage/issues/4068
+        - mpi-hs
 
     "Yang Bo <pop.atry@gmail.com> @Atry":
         - control-dsl