[patch] update zlib to the 1.2.10 release.

[Jeff Law]

On 01/12/2017 02:26 PM, Matthias Klose wrote:
> On 12.01.2017 22:17, Jeff Law wrote:
>> On 01/05/2017 07:45 AM, Matthias Klose wrote:
>>> These are the changes updating zlib from 1.2.8 to 1.2.10. It is only used when
>>> building without a system zlib.  The new release includes fixes for security
>>> issues CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, CVE-2016-9843.
>>>
>>> Checked with a build with disabled system-zlib. Ok for the trunk?
>> Were there any changes that we needed to carry forward or any changes you needed
>> to make to the upstream sources?
>
> I backed out the changes to the configure* and Makefile* changes (and only
> these), which are completely different to zlib upstream. There are no
> additions/deletions to zlib source files, so these build changes still work with
> the updated zlib.
One more note.  I think that, in general, backing out local changes 
which don't have a strong need to be carried forward is absolutely the 
right thing to do.  The less hacking we do on these libraries we pull 
from other sources, the better, IMHO.

jeff