RFR (s) 8141570: Fix Zero interpreter build for --disable-precompiled-headers

[Coleen Phillimore]

On 11/17/15 2:44 AM, Kim Barrett wrote:
> On Nov 17, 2015, at 2:26 AM, Kim Barrett <kim.barrett at oracle.com> wrote:
>> On Nov 16, 2015, at 10:23 PM, Coleen Phillimore <coleen.phillimore at oracle.com> wrote:
>>> I was trying to find if -Wundef wasn't an option supported in CLANG but undef is a hard thing to google for.
>> Oh, right, the problem might be that -W[no-]undef causes llvm to complain.
> BTW, I couldn’t find any sign of such a problem in the llvm bug database.  Lots of quoted invocations with -Wundef, but nothing about that option causing problems.  I could have missed it in the noise though…

I think we should go ahead with the "right thing" and append the warning 
arguments and if the clang LLVM problem reappears for someone, they'll 
have the configuration to make and verify Kim's other fix in his n-1 email.

thanks,
Coleen

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