yammat.cabal: add newly required language extensions

2020-12-03 22:45:11 +01:00 · 2020-12-03 22:45:11 +01:00 · 3bb3e3bb0d
parent 0a0e9e424c
commit 3bb3e3bb0d
1 changed files with 3 additions and 0 deletions
--- a/yammat.cabal
+++ b/yammat.cabal
@ -65,6 +65,9 @@ library
                ViewPatterns
                TupleSections
                RecordWildCards
+                DerivingStrategies
+                StandaloneDeriving
+                UndecidableInstances

    build-depends: base                          >= 4          && < 5
                 , yesod                         >= 1.6