diff options
Diffstat (limited to 'testsuite/tests/deriving/should_fail/T9600.stderr')
| -rw-r--r-- | testsuite/tests/deriving/should_fail/T9600.stderr | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/testsuite/tests/deriving/should_fail/T9600.stderr b/testsuite/tests/deriving/should_fail/T9600.stderr index 734e3af997..6ff63108f9 100644 --- a/testsuite/tests/deriving/should_fail/T9600.stderr +++ b/testsuite/tests/deriving/should_fail/T9600.stderr @@ -2,5 +2,7 @@ T9600.hs:4:39: error: • Can't make a derived instance of ‘Applicative Foo’: ‘Applicative’ is not a stock derivable class (Eq, Show, etc.) - Try GeneralizedNewtypeDeriving for GHC's newtype-deriving extension • In the newtype declaration for ‘Foo’ + Suggested fix: + Perhaps you intended to use GeneralizedNewtypeDeriving + for GHC's newtype-deriving extension |