From 714374151c9ed2297ac9a23a9ebd8344668fb426 Mon Sep 17 00:00:00 2001 From: Joey Hess Date: Sun, 30 Dec 2018 14:27:38 -0400 Subject: Fix build with ghc 8.6.3 Ghc started complaining that the SingI constraints needs UndecidableInstances. I'm not clear why, when it used to work without that extension. UndecidableInstances were already used in MetaTypes.. --- src/Propellor/Types.hs | 1 + 1 file changed, 1 insertion(+) (limited to 'src/Propellor') diff --git a/src/Propellor/Types.hs b/src/Propellor/Types.hs index e10e0f5b..7052bf92 100644 --- a/src/Propellor/Types.hs +++ b/src/Propellor/Types.hs @@ -1,5 +1,6 @@ {-# LANGUAGE GeneralizedNewtypeDeriving #-} {-# LANGUAGE FlexibleInstances #-} +{-# LANGUAGE UndecidableInstances #-} {-# LANGUAGE FlexibleContexts #-} {-# LANGUAGE MultiParamTypeClasses #-} {-# LANGUAGE TypeFamilies #-} -- cgit v1.2.3