#12625: Bad error message for flags with required but missing arguments -------------------------------------+------------------------------------- Reporter: dramforever | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- {{{ $ ghc -I ghc: unrecognised flag: -I did you mean one of: -I -F -v Usage: For basic information, try the `--help' option. }}} Which is confusing (Unrecognized `-I`. Did you mean `-I`?), and not informative (No mention of the missing argument) I expect something like "missing argument for `-I`", or a basic usage info on `-I` instead. It looks similar to #9776 to me. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12625 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler