https://git.ruby-lang.org/ruby.git/commit/?id=34ebd13923

From 34ebd1392318b45f120f4d598f710bfcf5069c51 Mon Sep 17 00:00:00 2001
From: Charles Oliver Nutter <headius@h...>
Date: Wed, 29 Sep 2021 12:40:14 -0500
Subject: [ruby/open3] Only use JITSupport on CRuby

Fixes #2

https://github.com/ruby/open3/commit/6b7ede69e8
---
 test/test_open3.rb | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/test/test_open3.rb b/test/test_open3.rb
index 47d471c031a..699b05a90c2 100644
--- a/test/test_open3.rb
+++ b/test/test_open3.rb
@@ -2,7 +2,10 @@ https://github.com/ruby/ruby/blob/trunk/test/test_open3.rb#L2
 
 require 'test/unit'
 require 'open3'
-require_relative 'lib/jit_support'
+
+if RUBY_ENGINE == 'ruby'
+  require_relative 'lib/jit_support'
+end
 
 class TestOpen3 < Test::Unit::TestCase
   RUBY = EnvUtil.rubybin
@@ -127,7 +130,11 @@ class TestOpen3 < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/test_open3.rb#L130
           i.close
           STDERR.reopen(old)
           assert_equal("zo", o.read)
-          assert_equal("ze", JITSupport.remove_mjit_logs(r.read))
+          if defined?(JITSupport)
+            assert_equal("ze", JITSupport.remove_mjit_logs(r.read))
+          else
+            assert_equal("ze", r.read)
+          end
         }
       }
     }
-- 
cgit v1.2.1


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