Detect musl in config.guess wrapper

[Erik Joelsson]

Looks good


On 2017-05-05 16:04, Mikael Vidstedt wrote:
> Please review the following change which adds support for detecting the musl C library in the config.guess wrapper. With this change in place there’s no need to explicitly specify —host and/or —build to configure.
>
> http://cr.openjdk.java.net/~mikael/webrevs/portola/musl-config.guess/webrev.00/webrev/ <http://cr.openjdk.java.net/~mikael/webrevs/portola/musl-config.guess/webrev.00/webrev/>
>
> Cheers,
> Mikael
>