Cabal 1.22 RC ready to test

[Johan Tibell]

It might be as simple as bumping the Cabal submodule in GHC to match the
upstream 1.22 branch.

On Sat, Jan 3, 2015 at 8:46 AM, Jake Wheat <jakewheatmail at gmail.com> wrote:

>
> On 3 January 2015 at 15:05, Johan Tibell <johan.tibell at gmail.com> wrote:
>
>> The error (https://travis-ci.org/haskell/cabal/jobs/45758614) is quite
>> perplexing:
>>
>> [62 of 77] Compiling Distribution.Client.Config (
>> Distribution/Client/Config.hs,
>> dist/dist-sandbox-8940a882/build/cabal/cabal-tmp/Distribution/Client/Config.o
>> )
>> Distribution/Client/Config.hs:56:12:
>>     Module
>>     ‘Distribution.Simple.Compiler’
>>     does not export
>>     ‘DebugInfoLevel(..)’
>> cabal: Error: some packages failed to install:
>> cabal-install-1.22.0.0 failed during the building phase. The exception
>> was:
>> ExitFailure 1
>>
>> Distribution.Simple.Compiler most definitely does export DebugInfoLevel,
>> otherwise it wouldn't compile with the other GHC versions.
>>
>> Does GHC do something special with Cabal nowadays when it's no longer
>> tied to GHC?
>>
>> Is it because the Cabal-1.22.0.0 bundled with ghc is now different to the
> Cabal-1.22.0.0 in github? I get the same error compiling the master branch
> cabal-install with ghc-7.10.0-20141222.
>
> I think one solution is to increase the version number of Cabal in github
> (for 1.22 and master branches), and to make the latest cabal-install depend
> on this (i.e. Cabal>=1.22.0.1) since cabal-install 1.22 in github no longer
> works with the 'released' snapshot Cabal-1.22.0.0 in ghc. This fixes the
> error for ghc-7.10.0-20141222.
>
>
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