#10205: On Windows ghc-pkg always reports cache out of date -------------------------------------+------------------------------------- Reporter: hgolden | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.10.2 Component: ghc-pkg | Version: 7.10.1 Resolution: | Keywords: Operating System: Windows | Architecture: Type of failure: Incorrect result | Unknown/Multiple at runtime | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by Kludgy): NTFS modified dates on Windows are unreliable, often clocking the directory modified date a few seconds ahead or behind their file changes. The results also vary depending on how NTFS is configured. It is likely that Windows users seeing this issue persist after a recache have millisecond precision enabled on timestamps, making ghc-pkg much more sensitive to the errors. Having ghc-pkg work on per-minute precision could help to ameliorate the problem, but ideally the tools should not be relying on implicit assumptions about directory modified times at all. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10205#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler