[Haskell-cafe] Being Compatible
Malcolm Wallace
Malcolm.Wallace at cs.york.ac.uk
Fri Oct 8 05:47:42 EDT 2004
John Goerzen <jgoerzen at complete.org> writes:
> My initial thought was to use the cpp-style ifdefs I've seen elsewhere
> to mask those unsupported features on those particular systems. But
> Hugs at least doesn't support that, and I've found it extremely
> difficult to find a list of predefined macros for the other systems
> anyway.
I thought Hugs does support preprocessing, with the -F option?
The usual cpp macros are:
__HASKELL98__ # supports at least the '98 standard
__GLASGOW_HASKELL__ = 504, 602, etc
__HUGS__
__NHC__
__HBC__
You might also occasionally see
__HADDOCK__ # for documentation-only preprocessing
__HAT__ # for the Hat tracer
Regards,
Malcolm
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