[Haskell-cafe] MRP, 3-year-support-window, and the non-requirement of CPP

Edward Kmett ekmett at gmail.com
Sat Oct 10 19:33:37 UTC 2015

On Tue, Oct 6, 2015 at 1:41 PM, Sven Panne <svenpanne at gmail.com> wrote:

> 2015-10-06 18:47 GMT+02:00 Herbert Valerio Riedel <hvr at gnu.org>:
>> [...] That's because -Wall-hygiene (w/o opting out of harmless) warnings
> across multiple GHC versions is not considered a show-stopper.
> That's your personal POV, I'm more leaning towards "-Wall -Werror". I've
> seen too many projects where neglecting warning over an extended period of
> time made fixing them basically impossible at the end. Anyway, I think that
> a sane ecosystem should allow *both* POVs, the sloppy one and the strict
> one.

Note: You haven't been able to upload a package that has -Werror turned on
in the cabal file for a couple of years now -- even if it is only turned on
on the test suite, so any -Werror discipline you choose to enforce is
purely local.

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