@@ -19,6 +19,7 @@ library
1919 hs-source-dirs: src
2020 default-extensions: ConstraintKinds
2121 , DataKinds
22+ , DeriveDataTypeable
2223 , DeriveGeneric
2324 , FlexibleInstances
2425 , MultiParamTypeClasses
@@ -37,13 +38,13 @@ library
3738
3839 build-depends: base >=4.7 && <4.9
3940
40−
4141test-suite example
4242 type: exitcode-stdio-1.0
4343 default-language: Haskell2010
4444 hs-source-dirs: example
4545 main-is: Main.hs
46− default-extensions: DataKinds
46+ default-extensions: ConstraintKinds
47+ , DataKinds
4748 , GADTs
4849 , TemplateHaskell
4950 , TypeFamilies