Change safety language flags.

src/Conv.hs

@@ -1,6 +1,6 @@
-{-# LANGUAGE TypeSynonymInstances #-}
+{-# LANGUAGE Trustworthy #-}
 {-# LANGUAGE FlexibleInstances #-}
-
+{-# LANGUAGE TypeSynonymInstances #-}
 
 module Conv (
   StringConv (..)

src/Debug.hs

@@ -1,4 +1,4 @@
-{-# LANGUAGE Unsafe #-}
+{-# LANGUAGE Trustworthy #-}
 {-# LANGUAGE NoImplicitPrelude #-}
 
 module Debug (

src/Functor.hs

@@ -1,4 +1,5 @@
 {-# LANGUAGE CPP #-}
+{-# LANGUAGE Safe #-}
 {-# LANGUAGE NoImplicitPrelude #-}
 
 module Functor (

src/Panic.hs

@@ -1,3 +1,4 @@
+{-# LANGUAGE Trustworthy #-}
 {-# LANGUAGE DeriveDataTypeable #-}
 
 module Panic (