On Fri, Sep 11, 2009 at 11:26 AM, Neil Brown <[email protected]> wrote:
>
> Can anyone tell me how to fix this? I don't think that changing to always
> use Control.Exception would fix this, because I need to give a different
> type for catch in base-3 to base-4, so there's still the incompatibility to
> be dealt with.
I'd try using a cabal flag to set a CPP flag.
E.g., from cabal
Flag Base3
Description: Use Version 3 of Base
Default: False
Library/Executable
if flag(Base3)
CPP-Options: -D _BASE_3_
Build-Depends: base >= 3 && < 4
else
Build-Depends: base >= 4 && < 5
And then do,
#if _BASE_3_
import qualified Control.Exception as C
#else
import qualified Control.OldException as C
#endif
--
Dave Menendez <[email protected]>
<http://www.eyrie.org/~zednenem/>
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