RFR: JDK-8087193: Support building with devkits on Macosx

[Erik Joelsson]

I forgot to motivate the change. Configure runs config.guess to figure 
out what kind of machine it's running on. That file in turn uses the C 
preprocessor to figure out if it's 32 or 64 bit. If we don't setup 
devkit before running config.guess, the preprocessor might not be 
available and configure will think the mac is a 32 bit machine.

/Erik

On 2015-06-11 12:46, Erik Joelsson wrote:
> Hello,
>
> Please review this minor tweak to configure which enables the use of a 
> portable devkit on Macosx. Also included is the script used to 
> generate the devkit. The plan is use this internally on our build 
> servers to ease installation and setup of our machines.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8087193
> Webrev: http://cr.openjdk.java.net/~erikj/8087193/webrev.01/
>
> /Erik