RFR: Add limited support for -musl to config.sub

[Magnus Ihse Bursie]

On 2017-04-12 01:14, Mikael Vidstedt wrote:
> The version of autoconfig-config.sub checked into the JDK repo is old enough to not support/handle musl. This change adds (very) limited support for handling musl tuples. Specifically, it *only* handles the exact tuple 'x86_64-unknown-linux-musl' and handles it by returning the exact same tuple string.

That's how we're doin' things 'round 'ere. ;-)

LGTM.

/Magnus

>
> This clearly needs to be made more flexible going forward, and I’m following up on options to do so. Meanwhile, this at least works well enough to get something building.
>
> http://cr.openjdk.java.net/~mikael/webrevs/portola/configsub/webrev.00/webrev/
>
> Cheers,
> Mikael
>