[Haskell-cafe] [ANNOUNCE] GHC 8.4.1-alpha1 available

[Brandon Allbery]

If you install over an older version of ghc, you will have a leftover
package cache from the old version which will cause package lookups to
fail. Someone else just tripped over this in IRC after installing a new ghc
over an old one; the Arch 8.2.2 upgrade from 8.2.1 also seems to be
susceptible to this. Rebuilding the package cache (ghc-pkg recache
--global; with sudo if installed as root) will fix this.

On Sat, Dec 30, 2017 at 9:13 AM, Fabien R <theedge456 at free.fr> wrote:

> On 20/12/17 21:48, Ben Gamari wrote:
> >
> > The GHC development team is pleased to announce the first alpha release
> > of the 8.4.1 release. The usual release artifacts are available from
> >
> >     https://downloads.haskell.org/~ghc/8.4.1-alpha1
>
> I tried to build the release from this script [1] which works
> straightfully for GHC 8.2.2 on debian jessie.
> 1) There's a minor glitch showing:
> GHC_VERSION = 8.4.1
> but the version of the file in the download area is 8.4.0.20171214
>
> 2) GHC and cabal library installed successfully whereas cabal-install
> failed with this error:
>
> Linking Setup ...
> Configuring HTTP-4000.3.7...
> Setup: Encountered missing dependencies:
> base >=4.3.0.0 && <4.11
>
>
> Error during cabal-install bootstrap:
> Configuring the HTTP package failed.
>
> Any hint ?
>
> --
> Fabien
>
>
> [1] gist.github.com/yantonov/10083524
>
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-- 
brandon s allbery kf8nh                               sine nomine associates
allbery.b at gmail.com                                  ballbery at sinenomine.net
unix, openafs, kerberos, infrastructure, xmonad        http://sinenomine.net
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