tests: fix build error with GHC < 8.4

This commit is contained in:
Simon Michael 2018-08-18 19:26:07 +01:00
parent 168b853b1a
commit a8031de729

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@ -1,3 +1,4 @@
{-# LANGUAGE CPP #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE ScopedTypeVariables #-}
@ -27,6 +28,9 @@ module Hledger.Utils.Test (
import Control.Exception
import Control.Monad
import Control.Monad.State.Strict (StateT, evalStateT)
#if !(MIN_VERSION_base(4,11,0))
import Data.Monoid ((<>))
#endif
import Data.CallStack
import Data.Functor.Identity
import Data.List