https://sourceforge.net/p/libpng/bugs/264/2017-10-03T15:12:30.745000ZRecent changes to 264: libpng 1.6.29: ZLIB_1.2.9 not found (required by /usr/lib/libpng16.so.16)2017-10-03T15:12:30.745000Z2017-10-03T15:12:30.745000ZGlenn Randers-Pehrsonhttps://sourceforge.net/u/glennrp/https://sourceforge.net7cfbf04850e5dd44c03b6e211b5a5dbc34cf1962

<div class="markdown_content"><p>This is not a terribly satisfactory solution, but you may be able to work around the problem by using --zprefix when you configure your new zlib. This may eliminate a conflict between your new zlib with the older one lurking on your system somewhere.</p></div>

2017-05-09T09:21:01.417000Z2017-05-09T09:21:01.417000ZJens Seeberhttps://sourceforge.net/u/noxupha/https://sourceforge.net110eccf755e16eea5f483e93dcfcbadcd28ab1ae

<div class="markdown_content"><p>I can confirm this issue, also on Arch Linux (x64_64).<br/> For me it arises with Steam (and X3) and concerns the 32-bit variant of libpng, with the same versions as above.<br/> Also in my case downgrading to libpng 1.6.28 solves the issue.</p></div>

2017-04-18T19:07:31.290000Z2017-04-18T19:07:31.290000ZBarthttps://sourceforge.net/u/bart-5e1/https://sourceforge.net5e7ca8253bf3395445274aca32b49c7d118d5def

<div class="markdown_content"><p>Distribution: <br/> Arch Linux (x86_64)</p> <p>Packages installed:<br/> libpng 1.6.29-1<br/> zlib 1:1.2.11-1</p> <p>Hello,<br/> after upgrading to libpng 1.6.29, Mathematica (that's a computer algebra system) refuses to start with the following error message:</p> <p><code>/opt/Mathematica/9.0/SystemFiles/Libraries/Linux-x86-64/libz.so.1: version 'ZLIB_1.2.9' not found (required by /usr/lib/libpng16.so.16)</code></p> <p>This issue is solved after downgrading to libpng 1.6.28.</p></div>