#7581: ghc crashed on trying compiling a file generated by Alex ---------------------------------+------------------------------------------ Reporter: guest | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.4.2 Resolution: duplicate | Keywords: Os: Windows | Architecture: Unknown/Multiple Failure: Compile-time crash | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: ---------------------------------+------------------------------------------ Changes (by simonpj): * status: new => closed * difficulty: => Unknown * resolution: => duplicate Comment: Thanks. This is another example of GHC most oft-reported bug (fixed some time ago), #5961, #7549, #7516, #7455, #7252, #7236, etc! The culprit is the lower-case `show` in the `deriving` clause for `Token`. It's not Alex's fault, happily. Simon -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7581#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler