Re: heads-up: Haskell updates

[Ricardo Wurmus]

Danny Milosavljevic <address@hidden> writes:

> So the only problematic case is that the build process finds MADV_FREE
> but the running Linux doesn't yet have it and a ghc program runs on it.
>
> Reading MADV_DONTNEED docs again, MADV_DONTNEED pretty much does the same
> as MADV_FREE - but MADV_DONTNEED promises to make later accesses to the
> range succeed (by providing a new zero-filled page if necessary) while
> MADV_FREE promises to make them fail.
>
> So one could fall back to MADV_DONTNEED - should be fine, though a little 
> weird
> for an allocator.
>
> If that's the case and the build still fails, let's just apply the Haskell 
> patch
> to ghc (or update ghc if there's a newer release).

There’s no newer release we may use.  Of course, there’s GHC 8.2.x but
the current version for LTSHaskell is 8.0.2.  With 8.2.x who knows what
other things are broken :)

So let’s apply the patch.
Danny, could you please do this on master and core-updates?

I’d like to merge core-updates this week and it would be great if we
could build all of the Haskell packages (and all those R packages that
depend on Pandoc) before the merge.

--
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net