Re: Automating GHC build for Windows

Thanks for pushing this forward. I wonder what's going on with DeleteFile. What is the step that's failing? Can you post the log? I also wonder why this issue is not arising on other Windows machines... On Thu, Oct 30, 2014 at 12:18 AM, Páli Gábor János wrote:

2014-10-28 21:49 GMT+01:00 Gintautas Miliauskas :

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Can you try running the offending command with -v to see which step breaks?

I have tried it, even together with building the GHC sources with a recent toolchain, but I did not get much forward.

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I tried running it locally under strace but did not see any file renames either.

Although, I think I managed to find the place where some renaming happens. That is `writeFileAtomic` in Cabal's Distribution.Simple.Utils module [1]. The bin-package-db library has a patched version of this function [2] that has a workaround for Windows. After incorporating this change in Cabal, I was able to pass the previously problematic point in the build. Unfortunately, this was not enough for the complete build, as a similar error (with DeleteFile that time) was raised.

[1] https://github.com/haskell/cabal/blob/master/Cabal/Distribution/Simple/Utils... [2] https://github.com/ghc/ghc/blob/master/libraries/bin-package-db/GHC/PackageD...

-- Gintautas Miliauskas