#11454: Do not suggest deprecated flags -------------------------------------+------------------------------------- Reporter: thomie | Owner: Type: task | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.3 Keywords: newcomer | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- When you misspell the name of a flag, GHC outputs a nice list of similar flags that do exist: {{{ $ ghc-8.0.1 -W-redundant-constraints ghc: unrecognised flag: -W-redundant-constraints did you mean one of: -Wredundant-constraints -Wno-redundant-constraints -fwarn-redundant-constraints }}} But since the `-fwarn` flags are deprecated, they should not be suggested. Neither should any of the other deprecated flags. For a newcomer: the code is `compiler/main/DynFlags.hs`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11454 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler