use Safe modules as much as possible

src/Language/Haskell/Exts/Build.hs

@@ -1,3 +1,5 @@
+{-# LANGUAGE Safe #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Language.Haskell.Exts.Build

src/Language/Haskell/Exts/Comments.hs

@@ -1,4 +1,5 @@
-{-# LANGUAGE DeriveDataTypeable #-}
+{-# LANGUAGE DeriveDataTypeable, Safe #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Language.Haskell.Exts.Comments

src/Language/Haskell/Exts/ExactPrint.hs

@@ -1,5 +1,5 @@
-{-# LANGUAGE DeriveFunctor #-}
-{-# LANGUAGE CPP #-}
+{-# LANGUAGE CPP, DeriveFunctor, Safe #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Language.Haskell.Exts.Annotated.ExactPrint

src/Language/Haskell/Exts/ExtScheme.hs

@@ -1,4 +1,6 @@
+{-# LANGUAGE Safe #-}
 {-# OPTIONS_HADDOCK hide #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Language.Haskell.Exts.ExtScheme

src/Language/Haskell/Exts/Extension.hs

@@ -1,5 +1,5 @@
-{-# LANGUAGE DeriveDataTypeable #-}
-{-# LANGUAGE CPP #-}
+{-# LANGUAGE CPP, DeriveDataTypeable, Safe #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Language.Haskell.Exts.Extension

src/Language/Haskell/Exts/Fixity.hs

@@ -1,5 +1,5 @@
-{-# LANGUAGE DeriveDataTypeable #-}
-{-# LANGUAGE CPP #-}
+{-# LANGUAGE CPP, DeriveDataTypeable, Safe #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Language.Haskell.Exts.Fixity

src/Language/Haskell/Exts/InternalLexer.hs

@@ -1,4 +1,6 @@
+{-# LANGUAGE Safe #-}
 {-# OPTIONS_HADDOCK hide #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Language.Haskell.Exts.Annotated.InternalLexer

src/Language/Haskell/Exts/InternalParser.ly

@@ -1,6 +1,7 @@
 > {
 > {-# LANGUAGE CPP #-}
 > {-# OPTIONS_HADDOCK hide #-}
+> 
 > -----------------------------------------------------------------------------
 > -- |
 > -- Module      :  Language.Haskell.Exts.Annotated.Parser

src/Language/Haskell/Exts/Lexer.hs

@@ -1,3 +1,5 @@
+{-# LANGUAGE Safe #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Language.Haskell.Exts.Lexer

src/Language/Haskell/Exts/ParseMonad.hs

@@ -1,5 +1,6 @@
-{-# LANGUAGE CPP #-}
+{-# LANGUAGE CPP, Safe #-}
 {-# OPTIONS_HADDOCK hide #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Language.Haskell.Exts.ParseMonad

src/Language/Haskell/Exts/Parser.hs

@@ -1,5 +1,6 @@
 {-# LANGUAGE CPP, DeriveDataTypeable, FlexibleInstances, DeriveFunctor #-}
 {-# OPTIONS_GHC -fno-warn-orphans #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Language.Haskell.Exts.Annotated.Parser