Issue #7293 has been reported by luislavena (Luis Lavena).

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Backport #7293: Backport: Add zlibwapi to extconf.rb file for zlib library 
https://bugs.ruby-lang.org/issues/7293

Author: luislavena (Luis Lavena)
Status: Assigned
Priority: Normal
Assignee: usa (Usaku NAKAMURA)
Category: 
Target version: 


Please backport r37527 (Feature #6421)

Find attached a unified diff with the patch.

Thank you


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