#4012: Compilation results are not deterministic -------------------------------------+------------------------------------- Reporter: kili | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.10.1 Component: Compiler | Version: 6.12.2 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Difficult (2-5 Type of failure: Other | days) Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | -------------------------------------+------------------------------------- Comment (by simonmar): I agree that byte-identical build results might be useful (though difficult), I question whether you need it for ccache. ccache doesn't need to compare build results, only build *inputs*; when the inputs are the same we can re-use the previous output. It doesn't matter whether repeating the build would produce the exact same output, only that it is valid to re-use the previous output. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/4012#comment:57 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler