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

[Alan Bateman]

On 27/02/2013 23:16, Martin Buchholz wrote:
> I have another iteration of this change
> http://cr.openjdk.java.net/~martin/webrevs/openjdk8/hide-zlib/ 
> <http://cr.openjdk.java.net/%7Emartin/webrevs/openjdk8/hide-zlib/>
> that adds exciting new exception detail message for the InternalError 
> I was scratching my head about earlier.
>
> -            msg = strm->msg;
> +            msg = ((strm->msg != NULL) ? strm->msg :
> +                   (ret == Z_VERSION_ERROR) ?
> +                   "zlib returned Z_VERSION_ERROR: "
> +                   "compile time and runtime zlib implementations differ" :
> +                   (ret == Z_STREAM_ERROR) ?
> +                   "inflateInit2 returned Z_STREAM_ERROR" :
> +                   "unknown error initializing zlib library");
The update to make/java/zip/Makefile looks good to me, we should have 
done it a long time ago. I assume you are pushing ahead on this because 
you want to push it to jdk7u-dev (as it's not interesting to jdk8 now 
because of the new build).

The exciting new exception detail change looks okay to me too although 
it is hard to read. It wasn't immediately obvious to me why stddef.h was 
needed and we'd need to make sure that is okay on all platforms.

-Alan.