--- Daan Leijen
I agree with you that in general we should avoid a preprocessor. However, in the DData case it is hard to see a different solution. Using a "mini module" to do the bit-fiddling won't work that well since
1) It is imperative for performance that the ghc "shiftRL#" gets inlined, which doesn't happen if it is in a separate module.
Is this true? I thought GHC exports some intermediate code in .hi files.
2) As part of the standard libraries, you can't have three extra modules for each system
Yet, in this case, maybe the various haskell implementations could be unfied in a manner that #ifdefs become unnecessary. Also, I think that support for older implementations (ie. GHC < 503) can be dropped, but I need an "official" opinion here. Cheers, JP. __________________________________ Do you Yahoo!? Yahoo! Tax Center - File online by April 15th http://taxes.yahoo.com/filing.html