#15068: Small number of test case failures on Ubuntu Bionic (GCC 7.3) -------------------------------------+------------------------------------- Reporter: jrp | Owner: (none) Type: bug | Status: merge Priority: highest | Milestone: 8.4.3 Component: Compiler | Version: 8.4.1 (CodeGen) | Resolution: fixed | Keywords: Operating System: Linux | Architecture: x86_64 | (amd64) Type of failure: Incorrect result | Test Case: T13658 at runtime | T14779a T14779b T14868 debug | parsing001 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D4654 Wiki Page: | -------------------------------------+------------------------------------- Comment (by hvr): It's worth pointing out that this would mostly be experienced with Stack's somewhat questionable defaults. It should be rather easy to fix this on Stack's side by detecting system configurations which are known to be incompatible and avoid passing `-g` to GHC by default. For those that are blocked on this, I'd recommend either giving `cabal new-build` a try or using Stack w/ the GHC 8.4.2 (`ghc-8.4.2 8.4.2-8~18.04`) or GHC 8.2.2 (`ghc-8.2.2 8.2.2-4~18.04`) packages for Ubuntu 18.04 LTS from my Ubuntu PPA which don't suffer from this issue. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15068#comment:25 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler