https://git.ruby-lang.org/ruby.git/commit/?id=26888d5e03

From 26888d5e032202328e10881550477fd036c8e805 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Thu, 15 Apr 2021 18:07:23 +0900
Subject: Workaround for installation failures on macOS

---
 tool/rbinstall.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tool/rbinstall.rb b/tool/rbinstall.rb
index 663717a..66686eb 100755
--- a/tool/rbinstall.rb
+++ b/tool/rbinstall.rb
@@ -3,6 +3,8 @@ https://github.com/ruby/ruby/blob/trunk/tool/rbinstall.rb#L3
 # Used by the "make install" target to install Ruby.
 # See common.mk for more details.
 
+ENV["SDKROOT"] ||= "" if /darwin/ =~ RUBY_PLATFORM
+
 begin
   load "./rbconfig.rb"
 rescue LoadError
-- 
cgit v1.1


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