https://git.ruby-lang.org/ruby.git/commit/?id=26e3aea94f

From 26e3aea94f2897ae5079d9f9e5549c58de515a54 Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@g...>
Date: Tue, 24 Nov 2020 19:26:40 -0800
Subject: Overwrite all existing files when extracting zlib

To prevent CI failure like
https://ci.appveyor.com/project/ruby/ruby/builds/36494552/job/a3ow8atl19786tep

diff --git a/appveyor.yml b/appveyor.yml
index 75452e2..9719a8e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -54,7 +54,7 @@ for: https://github.com/ruby/ruby/blob/trunk/appveyor.yml#L54
     - mkdir \usr\local\include
     - mkdir \usr\local\lib
     - curl -fsSL -o zlib%zlib_version:.=%.zip --retry 10 https://zlib.net/zlib%zlib_version:.=%.zip
-    - 7z x -o%APPVEYOR_BUILD_FOLDER%\ext\zlib zlib%zlib_version:.=%.zip
+    - 7z x -aoa -o%APPVEYOR_BUILD_FOLDER%\ext\zlib zlib%zlib_version:.=%.zip
     - for %%I in (%OPENSSL_DIR%\*.dll) do mklink /h \usr\local\bin\%%~nxI %%I
     - attrib +r /s /d
     - mkdir %Platform%-mswin_%vs%
-- 
cgit v0.10.2


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