mysqlnd: Remove unnecessary check for HAVE_ZLIB #5658
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Since ee4295b, the
zlib
package is explicitly checked for and configuration will fail without it. However,HAVE_ZLIB
, which isn't defined by the configuration script, still has to be defined inmysqlnd.h
for compression support to be turned on. This removes this requirement, which seems like a leftover. It probably only succeeds when buildingmysqlnd
as a part of PHP becauseHAVE_ZLIB
gets defined by thezlib
extension.In the NixOS project, we build the extensions separately, for maximal flexibility, and so we ran into this problem: NixOS/nixpkgs#89266
Related PR: #5655