#9293: GHCI :unset -XLanguageExtension returns "don't know how to reverse -XLanguageExtension" -------------------------+------------------------------------------------- Reporter: | Owner: jfeltz | Status: new Type: bug | Milestone: Priority: | Version: 7.8.2 normal | Operating System: Unknown/Multiple Component: GHCi | Type of failure: None/Unknown Keywords: | Test Case: :set -XCPP followed by Architecture: x86 | :unset -XCPP Difficulty: | Blocking: Unknown | Blocked By: | Related Tickets: | -------------------------+------------------------------------------------- Any language extension tried appears to not work with :unset. To make matters worse, :unset expands to a number of options, misleading the user into thinking that it should (if that is the case). I eventually had to ask someone on IRC #haskell, leading to the :set -XNoLanguageExtension trick to do what I needed. A fix to :unset is suggested, or removing the misleading/non-working command. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9293 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler