[ANNOUNCE] GHC 8.0.1 release candidate 2

Ben Gamari ben at smart-cactus.org
Mon Feb 15 21:09:52 UTC 2016

Sven Panne <svenpanne at gmail.com> writes:

> 2016-02-15 20:16 GMT+01:00 Ben Gamari <ben at smart-cactus.org>:
>> Sven Panne <svenpanne at gmail.com> writes:
>> The reason for this is that the things missing signatures are pattern
>> synonyms, which have their warnings controlled by -Wmissing-pat-syn-sigs
>> [1], which is enabled in -Wall by default.
> OK, I missed that in the release notes. Two points here:
>    * The naming of the options is horrible, sometimes it's "sigs",
> sometimes it's "signatures". I would prefer if we named them consistently
> (probably "signatures", it's easier to search for).
Indeed, I noticed that this when looking this up for you. The
inconsistency is quite unfortunate. Perhaps -Wmissing-pattern-signatures
or -Wmissing-patsyn-signatures? -Wmissing-pattern-synonym-signatures is
a bit of a mouthful.

>    * Given the myriad of warning-related options, It is *extremely* hard to
> figure out which one caused the actual warning in question. The solution to
> this is very easy and done this way in clang/gcc (don't remember which one,
> I'm switching quite often): Just suffix all warnings consistently with the
> option causing it, e.g.
Indeed, this is #10752, as hvr pointed out. I'm not sure whether David
has done anything on this yet; feel free to take a stab at implementing
it if you have some free time.

- Ben

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