[erlang-questions] Deprecation warnings: OTP20 and OTP21 compatible code

Fred Hebert mononcqc@REDACTED
Wed Jun 6 17:06:22 CEST 2018

I'm one of the few people who actually at times enforces warnings as errors
to dependencies, so that I catch prospective bugs early and can go open
pull requests and patch things to make sure I never get surprised with a
thing that doesn't build through deprecation.

I'd be open to having a mechanism to force-remove it, but I'd be annoyed to
lose the ability to go add it back though.

On Wed, Jun 6, 2018 at 10:30 AM, Bryan Hunt <bryan.hunt@REDACTED
> wrote:

> Jose, your pragmatic approach is *very* much appreciated.
> *In a top level project*, having explicitly *chosen* to specify the
> `warning_as_errors` option,
> a failed build as a result of warnings is *sensible*.
> *In a dependency*, enforcing a top level build failure due to it’s own *deprecated
> code,*
> is at best, *unhelpful*.
> While upgrading a project to compile/run on a modern Erlang - it is nearly
> impossible to avoid
> the case where one achieves a successful compilation, yet experience a
> slew of deprecation warnings.
> I fork all my dependencies in a non-backward-compatibile way to work
> around this limitation,
> but this approach is less than desirable from the perspective of
> cohesion/fragmentation/anything really.
> Bryan
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