#11664: Core Lint failure when building warp-3.2.2 ------------------------------------+-------------------------------------- Reporter: anton.dessiatov | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.3 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 (amd64) Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | ------------------------------------+-------------------------------------- Comment (by anton.dessiatov): I (expectedly) failed to make stack work with lts-5.5 and GHC 8.0 rc2 so I resorted to using cabal. I have used cabal-install 1.22.8.0 built against 1.22.7.0 Cabal library by GHC 7.10.3 to build warp 3.2.2 with GHC 8.0 rc2. I have did the following (ensuring that correct GHC 8.0 rc2 is on my PATH and I'm in a directory with Warp 3.2.2 source code) {{{ cabal update cabal sandbox init cabal install --ghc-options -dcore-lint }}} This time it failed when building `attoparsec-0.13.0.1` (Data.Attoparsec.Text.Internal module). Now it says {{{ *** Core Lint errors : in result of SpecConstr *** <no location info>: warning: In the type ‘Buffer -> Pos -> More -> a_aNxE -> IResult Text r_aNxF’ @ a_aNxE is out of scope }}} The full output is huge so I gzipped it (will post after submitting this message). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11664#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler