#10931: layers-0.1 does not compile with ghc-7.10 (likely a regression from ghc-7.8) -------------------------------------+------------------------------------- Reporter: slyfox | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 7.10.2 checker) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): -------------------------------------+------------------------------------- Changes (by simonpj): * cc: goldfire (added) Comment: Thanks for a small test case. I've added a test so if this goes wrong again we'll know. I have not investigated in detail. Would someone like to git-bisect to find when it got fixed? I have a horrid feeling that it'll just be part of some fairly substantial change to the type constraint solver, which we won't want to merge en-masse to 7.10.3. As things stand, it's a bug in 7.10 that we don't know how to fix. I'm sure we could find out, but it'd take precious cycles. How bad is it if this library doesn't work? I imagine this is relatively rare else it'd show up more often. Richard; you might be interested. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10931#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler