From 7cbe54714ca1b9112e278d2d605cd049a065707e Mon Sep 17 00:00:00 2001
From: Yuta Saito <kateinoigakukun@gmail.com>
Date: Tue, 18 Jun 2024 10:19:52 +0900
Subject: [PATCH] extmk.rb: define Gem.target_rbconfig not to break
 `Gem::Platform.local`

---
 ext/extmk.rb | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/ext/extmk.rb b/ext/extmk.rb
index 2f76e174d5..8b6b365a99 100755
--- a/ext/extmk.rb
+++ b/ext/extmk.rb
@@ -2,7 +2,13 @@
 # -*- mode: ruby; coding: us-ascii -*-
 # frozen_string_literal: false
 
-module Gem; end # only needs Gem::Platform
+module Gem
+  # Used by Gem::Platform.local
+  def self.target_rbconfig
+    RbConfig::CONFIG
+  end
+end
+# only needs Gem::Platform
 require 'rubygems/platform'
 
 # :stopdoc: