Add NondecreasingIndentation to the list of extensions in the ghc package

diff --git a/compiler/ghc.cabal.in b/compiler/ghc.cabal.in
index 0711a93..01db24a 100644 (file)
--- a/compiler/ghc.cabal.in
+++ b/compiler/ghc.cabal.in
@@ -99,6 +99,8 @@ Library
                 TypeSynonymInstances, MultiParamTypeClasses,
                 FlexibleInstances, Rank2Types, ScopedTypeVariables,
                 DeriveDataTypeable
+    if impl(ghc >= 7.1)
+        Extensions: NondecreasingIndentation
 
     Include-Dirs: . parser utils