Add NondecreasingIndentation to the extensions needed

diff --git a/base.cabal b/base.cabal
index 04caae1..ecb0d2d 100644 (file)
--- a/base.cabal
+++ b/base.cabal
@@ -104,7 +104,8 @@ Library {
                     ForeignFunctionInterface, UnliftedFFITypes,
                     DeriveDataTypeable, GeneralizedNewtypeDeriving,
                     FlexibleInstances, StandaloneDeriving,
-                    PatternGuards, EmptyDataDecls, NoImplicitPrelude
+                    PatternGuards, EmptyDataDecls, NoImplicitPrelude,
+                    NondecreasingIndentation
     }
     exposed-modules:
         Control.Applicative,