https://git.ruby-lang.org/ruby.git/commit/?id=1bb9e42fa5

From 1bb9e42fa5e4ea1b87ae35cb7de2baef5e1b15f1 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Sat, 19 Mar 2022 22:44:28 +0900
Subject: extlibs.rb: Add fallback `Colorize`

To get rid of an unnecessary dependency for the case using
in other repositories.
---
 tool/extlibs.rb | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/tool/extlibs.rb b/tool/extlibs.rb
index c6c6d0cf65..5d1a2db143 100755
--- a/tool/extlibs.rb
+++ b/tool/extlibs.rb
@@ -5,9 +5,19 @@ https://github.com/ruby/ruby/blob/trunk/tool/extlibs.rb#L5
 
 require 'digest'
 require_relative 'downloader'
-require_relative 'lib/colorize'
+begin
+  require_relative 'lib/colorize'
+rescue LoadError
+end
 
 class ExtLibs
+  unless defined?(Colorize)
+    class Colorize
+      def pass(str) str; end
+      def fail(str) str; end
+    end
+  end
+
   class Vars < Hash
     def pattern
       /\$\((#{Regexp.union(keys)})\)/
-- 
cgit v1.2.1


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