Change in hotspot causing build issues on OSX 10.8.5

[David DeHaven]

>>  and now get the warnings:
>> 
>> ---------
>> Compiling 13 files for jdk.policytool
>> clang: error: unknown warning option
>> '-Wno-tautological-constant-out-of-range-compare'; did you mean
>> '-Wno-tautological-compare'?
>> make[3]: ***
>> [/Users/ljanders/Documents/hg-workspaces/openjdk9/modular-dev/build/macosx-x86_64-normal-server-release/support/native/java.desktop/libfontmanager/AlternateSubstSubtables.o]
>> Error 1
>> make[2]: *** [java.desktop-libs] Error 2
>> --------
>> 
>> Also see a lot of these messages which I do not recall before
> 
> New warnings are expected when you bump up the compiler version as the compiler gets more and more pedantic. I don't build on OSX so haven't encountered them directly.

Yes, clang is very chatty compared to gcc :)

When's the next warning cleanup day?

-DrD-