#15988: Remove Text.Printf and System.Console.GetOpt from base -------------------------------------+------------------------------------- Reporter: andrewthad | Owner: (none) Type: task | Status: new Priority: normal | Milestone: 8.6.3 Component: Compiler | Version: 8.6.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by svenpanne): Replying to [ticket:15988 andrewthad]:
[...] There would be breakage from doing this, but libraries and applications that use these APIs would only need to add a single line to `build-depends` to continue being compatible with all versions of `base`. [...]
Hmmm, I don't think it's that easy: If you add the proposed `getopt` package to `build-depends` and compile with current `base`, GHC will see *two* implementations of `System.Console.GetOpt`: One from `base` and one from `getopt`. I really hope that this will result in a compilation error, silently picking one of the two implementations would be really, really bad... I think you will at least have to guard your `build-depends` with a `if impl(ghc >= X.Y)`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15988#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler