>> * include -Wcompat and -Wall, but make it "magic" so that -Wcompat >> never causes a build to fail even when users set -Wall -Werror. > > Tbh, I don't like the "magic" part at all. In fact, I currently rely on > `-Wcompat -Werror` triggering an error in my builds.
Point is - if -Wall implies -Wcompat that's simply not an option for many companies, who have a huge codebase, turn on -Wall -Werror as a matter of policy yet need the time granted by the 3 release policy to adapt their codebase. > To address the concern more generally is what > > https://ghc.haskell.org/trac/ghc/ticket/11219 > > aims to, but without any magic. Then you'd say > > -Wall -Werror -Wno-error=compat > > if -Wcompat implied by -Wall. That sounds good. -Wno-error=compat should work fine. > But we ran out of time for GHC 8.0, so #11219 will have to wait till GHC 8.2. Then is it reasonable to prevent -Wall -Werror from failing builds because of -Wcompat through some kind of special casing in GHC 8.0, to be generalized via -Wno-error in GHC 8.2? _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
