JDK9: RFR: 8019470: Changes needed to compile JDK8 on MacOS with clang compiler

[Henry Jen]

Ping! Is three any concern on this patch? I got JPRT reports no problem 
and other reports success.

I hope we can get this in as early as we can because build is evloving 
quickly, and I think it only can get better after pushed for more tests.

Cheers,
Henry

On 02/26/2014 12:23 AM, Henry Jen wrote:
> Hi,
>
> Please review a webrev to enable XCode5 build on Mac OS X, this webrev
> add basic clang flags and detect Xcode version to set default toolchain
> to clang for Xcode5 and after, otherwise set to gcc for Mac OS X.
>
> http://cr.openjdk.java.net/~henryjen/jdk9/8019470/1/webrev/
>
> This patch build on Maverick with Xcode 5, but is not yet sufficient to
> enable clang build on my Arch Linux, where I installed clang 3.4. There
> are some undeclare identifier|function|type warnings/errors, the cause
> of which is still under investigation, my guess lies in precompile
> header, but I think that can be addressed later.
>
> Cheers,
> Henry