Do not let internal JDK zlib symbols leak out of fastdebug libzip.so

[Alan Bateman]

On 23/02/2013 18:06, Martin Buchholz wrote:
> I am actually encountering this in openjdk7 with the old build system.
> I can repro the problem in openjdk8 with the old build system, but not 
> the new one.
>
> I don't know if you consider this a bug with the new build system - 
> it's supposed to generate the same bits, after  all???!!
> I'm not sure why - I'd guess something to do with VARIANT or FILES_m
>
> It's highly dubious whether we should have this extremely subtle and 
> error-prone distinction between release and fastdebug builds at all.
Thanks for confirming it's old build only, that was my reading too but 
without checking.

Anyway, I do consider it a bug (in the old build), and really hard to 
track down too until you see both libz and the JDK's libzip loaded. 
Kelly might have some insight the product vs. fastdebug difference.

-Alan