#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 andrewthad): Sorry, I didn't explain that part clearly. I mean using cabal-the- library's module reexport feature (1) (not GHC's module reexport feature). In the cabal file for the `getopt` library, we would have something like this: {{{ library default-language: Haskell2010 if impl(ghc < 8.8) build-depends: base >= 4.5 (or whenever the module was originally introduced) reexported-modules: System.Console.GetOpt else hs-source-dirs: src exported-modules: System.Console.GetOpt }}} So now on old GHCs, the module really is exported by both libraries, but cabal (or maybe GHC) understands that these are the same module. (1) https://ghc.haskell.org/trac/ghc/wiki/ModuleReexports -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15988#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler