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Reply to topic   Topic: build 67 missing zlib1.dll?
Author
sailor



Joined: 17 Apr 2015
Posts: 89
Location: US

PostPosted: Fri 12 Jun '26 14:55    Post subject: build 67 missing zlib1.dll? Reply with quote

It seems like zlib1.dll is missing in build 67-260610.

Was trying to get php_curl going and had to replace various dlls.
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tangent
Moderator


Joined: 16 Aug 2020
Posts: 454
Location: UK

PostPosted: Fri 12 Jun '26 20:36    Post subject: Reply with quote

The switch to ZLIB 1.3.2 was picked up in Apache HTTPD release Apache 2.4.67-260504 back in May, based on the CMake build HowTo (which switched to ZLIB 1.3.2 back in February). There is some discussion of that change and it's impact at https://www.apachelounge.com/viewtopic.php?p=44136#44136

Notably, as you have found, the various ZLIB libraries were renamed.
Code:
    1.3.1                1.3.2
    -----                -----
    bin\zlib1.dll        bin\z.dll
    lib\zlib.lib         lib\z.lib
    lib\zlibstatic.lib   lib\zs.lib

Significantly, the developer's decision to change the naming convention for the libraries caused quite a lot of discussion on the net, e.g. https://github.com/madler/zlib/issues/1181

It's adverse effect on various packages such as PHP, was also discussed in detail, e.g. https://github.com/crazywhalecc/static-php-cli/issues/1039 and https://github.com/php/pie/issues/514

I'm no expert with PHP, but would suggest you look for an updated version of the package that supports this later version of ZLIB without the need to copy old versions of the library files.
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