#10934: Iface type variable out of scope -------------------------------------+------------------------------------- Reporter: mjmrotek | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.2 Resolution: | Keywords: interface Operating System: Linux | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): -------------------------------------+------------------------------------- Comment (by thomie): Similar bugs were closed because of lack of reproducability (#9584, #7958), but I can reproduce your problem. * clone https://github.com/marcinmrotek/pipes-key-value-csv at commit 5719db5cc7eeecf2a0690ca5627ae6bd9500280c * uncommented the line `-- . KV.foldHeader` in `test/Test/KeyValue.hs` * `cabal install --dependencies-only` * `cabal test` I used the following tools: * ghc-7.10.2 * cabal-install version 1.22.6.0 * version 1.22.4.0 of the Cabal library * packages from http://www.stackage.org/snapshot/lts-3.4 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10934#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler