The following part of Erik Meijer's CGI server yields a warning:
-- Mime.hs ----------------------------------------
module Mime where
class Show a => Mime a where
mimeType :: a -> String
newtype TextPlain = TextPlain String
instance Show TextPlain where
showsPrec _ (TextPlain s) = showString s
instance Mime TextPlain where
mimeType _ = "text/plain"
---------------------------------------------------
panne@liesl: > ghc-3.01 -O -c Mime.hs
ifaceBinds: free vars: PrelPack.unpackCString#{-8D-}
ghc-3.01: module version changed to 1; reason: no old .hi file
Is this a bug in GHC? Can the warning be ignored safely?
--
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