From 7a88a9085d15bed53aff722657d8a0bc955dd042 Mon Sep 17 00:00:00 2001
From: Hiroshi SHIBATA <hsbt@ruby-lang.org>
Date: Fri, 9 Jan 2026 12:30:13 +0900
Subject: [ruby/rubygems] Make DEFAULT_INSTALL_EXTENSION_IN_LIB false by
 default to stop installing extensions into lib directory

https://github.com/ruby/rubygems/commit/1614b036f7
---
 lib/rubygems/config_file.rb | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/rubygems/config_file.rb b/lib/rubygems/config_file.rb
index f2c90cce3c..d34480f474 100644
--- a/lib/rubygems/config_file.rb
+++ b/lib/rubygems/config_file.rb
@@ -47,8 +47,7 @@ class Gem::ConfigFile
   DEFAULT_CONCURRENT_DOWNLOADS = 8
   DEFAULT_CERT_EXPIRATION_LENGTH_DAYS = 365
   DEFAULT_IPV4_FALLBACK_ENABLED = false
-  # TODO: Use false as default value for this option in RubyGems 4.0
-  DEFAULT_INSTALL_EXTENSION_IN_LIB = true
+  DEFAULT_INSTALL_EXTENSION_IN_LIB = false
   DEFAULT_GLOBAL_GEM_CACHE = false
 
   ##
-- 
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