Hmm. When I got this libraries\hpc\Trace\Hpc\Mix.hs:3:14: Warning: 'Trace.Hpc.Mix' is marked as Trustworthy but has been inferred as safe! I changed "Trustworthy" to "Safe". But then I got libraries\hpc\Trace\Hpc\Mix.hs:24:1: Data.Time: Can't be safely imported! The module itself isn't safe. This seems unhelpful. After all it's been "inferred as safe". What should I do? Thanks. Simon From: Simon Peyton Jones Sent: 14 November 2014 16:51 To: ghc-devs@haskell.org Subject: Windows breakage This breakage didn't use to happen. Might someone fix it? Thanks. For now I'm going through changing a dozen "Trustworthy" to "Safe". Is that right? Simon librariesWin32SystemWin32Console.hsc:2:14: Warning: 'System.Win32.Console' is marked as Trustworthy but has been inferred as safe! <no location info>: Failing due to -Werror. libraries/Win32/ghc.mk:4: recipe for target 'libraries/Win32/dist-install/build/System/Win32/Console.o' failed