Add missing conditional import

This commit is contained in:
Jonathan Daugherty 2020-03-03 16:26:23 -08:00
parent c1e534b991
commit 73950ca0de

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@ -1,7 +1,11 @@
{-# LANGUAGE CPP #-}
module Main where
import Control.Monad (when)
import Data.Maybe (fromMaybe)
#if !(MIN_VERSION_base(4,11,0))
import Data.Semigroup ((<>))
#endif
import System.Environment (getArgs, getProgName)
import System.Exit (exitFailure)
import System.Console.GetOpt