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

Ben Gamari ben at well-typed.com
Sun Dec 31 05:14:40 UTC 2017

Fabien R <theedge456 at free.fr> writes:

> 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
Hi Fabien,

Thanks for taking the time to test.

> 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
This is expected; pre-releases always have version numbers strictly less
than the final release they lead up to.

> 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 >= && <4.11
> Error during cabal-install bootstrap:
> Configuring the HTTP package failed.
This is due to the upper bound on `base`. You will likely get farther if
you invoke cabal with --allow-newer=base. In general you will likely
want to use something like Herbert's head.hackage [1] patch-set if you
want to build larger projects with this alpha.


- Ben

[1] https://github.com/hvr/head.hackage
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