diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/typecheck/TcDeriv.hs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/compiler/typecheck/TcDeriv.hs b/compiler/typecheck/TcDeriv.hs index 90b230a972..6078a7a7ff 100644 --- a/compiler/typecheck/TcDeriv.hs +++ b/compiler/typecheck/TcDeriv.hs @@ -1640,7 +1640,10 @@ mkNewTypeEqn [ text "Both DeriveAnyClass and" <+> text "GeneralizedNewtypeDeriving are enabled" , text "Defaulting to the DeriveAnyClass strategy" - <+> text "for instantiating" <+> ppr cls ] + <+> text "for instantiating" <+> ppr cls + , text "Use DerivingStrategies to pick" + <+> text "a different strategy" + ] mk_originative_eqn DerivSpecAnyClass -- CanDeriveStock CanDeriveStock gen_fn -> mk_originative_eqn $ |