haskellfoundation / haskellfoundation/error-message-index
Missing details in GHC-90584
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Description
https://github.com/haskellfoundation/error-message-index/blob/6b3fd8c96a89a42c2ffd35a60a65dbdaff831e5e/message-index/messages/GHC-90584/index.md?plain=1#L9-L10
I am missing the information here:
- since _when_ does deriving `Typeable` have no effect (starting with which GHC version)?
- link to GHC documentation of the mentioned warning/option
Answers to be integrated in error explanation:
- https://downloads.haskell.org/ghc/latest/docs/users_guide/using-warnings.html#ghc-flag-Wderiving-typeable
- since 7.10
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