#4012: Compilation results are not deterministic ----------------------------------+---------------------------------------- Reporter: kili | Owner: Type: bug | Status: new Priority: high | Milestone: 7.6.2 Component: Compiler | Version: 6.12.2 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Difficult (2-5 days) Type of failure: Other | Blocked By: Test Case: | Related Tickets: Blocking: | ----------------------------------+---------------------------------------- Comment (by nomeata): Debian is (slowly, as usual) working towards reproducible builds, and while some Haskell packages satisfy that requirement, others do not – see this message: https://lists.debian.org/debian- haskell/2014/02/msg00011.html What I find interesting is that `--show-iface` shows now change at all, besides a different interface hash. It would make debugging these issues easier if everything that takes part in the hash calculation was visible in `--show-iface`. Off your head, any idea what else could contribute to a interface change? Built paths and time stamps contribute ''not'' towards the hash, right? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/4012#comment:44 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler