Proposal: Remove Control.Concurrent{QSem, QSemN, , SampleVar, mergeIO, nmergeIO} from base

[Henning Thielemann]

On Thu, 7 Jun 2012, Ian Lynagh wrote:

> On Thu, Jun 07, 2012 at 10:24:51PM +0200, Henning Thielemann wrote:
>>
>> +1 for deprecation cycle.
>
> I don't think a deprecation cycle makes sense in this case:
>
> * Only a handful of packages use these modules/functions
>  (according to my very out-of-date copy of hackage, anyway).

I don't use these modules, too. But I supported the general thoughts by 
Ganesh.

> * The code is buggy (http://hackage.haskell.org/trac/ghc/ticket/3160)
>  so we would like people to stop using it sooner rather than later.

The DEPRECATE pragma allows people to tell _how_ they can fix their code.

> * It is harder for us: We don't have a good way to track tasks that need
>  to be done at some point in the future.

fgrep -r DEPRECATE

?