From 26888d5e032202328e10881550477fd036c8e805 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Thu, 15 Apr 2021 18:07:23 +0900
Subject: [PATCH] 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 663717aa74..66686ebbc5 100755
--- a/tool/rbinstall.rb
+++ b/tool/rbinstall.rb
@@ -3,6 +3,8 @@
 # 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