RFR: [8u] Build failed on Ubuntu 18.04 due to deprecated-declarations warnings

[Jie Fu]

Thanks Andrew.

On 2019/3/20 下午11:53, Andrew John Hughes wrote:
> On 19/03/2019 15:09, Martin Buchholz wrote:
>> Probably it's because glibc deprecated readdir, and we don't have
>> --disable-warnings-as-errors by default?
>>
>> (I think warnings should not be errors except as opt-in by openjdk
>> developers/maintainers)
> I agree, and we've implemented it that way downstream in IcedTea.
> At present, 8u doesn't even have the option to toggle this in the
> HotSpot build. I can certainly look at providing such an option and that
> would be a better, more general fix than turning off one specific warning.
>
> Note that warnings as errors is still the default in jdk/jdk unless xlc
> is used:
>
> https://hg.openjdk.java.net/jdk/jdk/file/83cace4142c8/make/autoconf/flags-cflags.m4#l142