Hi Wolfgang, I use CPP to manage such differences between 6.8, 6.9, and 6.10. As an example, see http://hackage.haskell.org/packages/archive/TypeCompose/latest/doc/html/src/Control-Compose.html.
Regards, - Conal On Tue, Nov 18, 2008 at 6:01 AM, Wolfgang Jeltsch < [EMAIL PROTECTED]> wrote: > Hello, > > how do I make a library work with both GHC 6.8 and GHC 6.10? According to > <http://www.haskell.org/haskellwiki/Upgrading_packages#Arrow_instances>, I > should change all my Arrow instances but then they don't work with GHC 6.8 > anymore, do they? Or is the solution to force GHC 6.8 users to use > base-4.0.0.0? > > Best wishes, > Wolfgang > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe >
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