On 29/05/2013, at 9:02 AM, Ben Franksen wrote: > Bryan O'Sullivan wrote: >> >>> I have made a wiki page describing a new proposal, >>> NoImplicitPreludeImport, which I intend to propose for Haskell 2014: >>> >>> http://hackage.haskell.org/trac/haskell-prime/wiki/NoImplicitPreludeImport >>> >>> What do you think? >> >> This is a truly terrible idea. >> >> It purports to be a step towards fixing the backwards compatibility >> problem, but of course it breaks every module ever written along the way, >> and it means that packages that try to be compatible across multiple >> versions of GHC will need mandatory CPP #ifdefs for years to come. > > I think it need not necessarily come to that. If we do this right, then > adding a line > > extensions: ImplicitPrelude
You could handle this more generally by implementing a compiler flag that causes modules to be imported. We've already got "-package P" for exposing packages, we could add "-module M" for exposing modules. When compiling with a Haskell2014 compiler just add the "-module Prelude" flag to your Makefile/.cabal file. Ben. _______________________________________________ Haskell-prime mailing list Haskell-prime@haskell.org http://www.haskell.org/mailman/listinfo/haskell-prime
