RFR: 8253253: Binutils tar ball extension update to gz

[Junyuan Zheng]

On Wed, 16 Sep 2020 17:50:41 GMT, Erik Joelsson <erikj at openjdk.org> wrote:

>> We only use the GCC 4.9.2 for jdk8u. The openjdk/jdk repository's devkit contains all devkits that support older jdk.
>> So we can just use this file to build all the devkits instead of pulling devkits from jdk8u and jdk11u. I also notice
>> newer code always contains devkit from older code. jdk contains (gcc 9, 7, 8 4), jdk11u contains (gcc 7, 4), and jdk8u
>> contains (gcc 4). But I will abandon this PR and change our workflow if outdated devkit will be eventually removed from
>> openjdk/jdk repository.
>
> Ah, I see. I would say that the intention is not to keep the latest mainline devkit generation scripts updated to
> support all older update releases, but I can see how it could look that way given how we have so far not really deleted
> older configs.

I will check in this code just in case people are going to use this script to generate GCC 4.9.2 devkit.

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PR: https://git.openjdk.java.net/jdk/pull/162