hsbt	2018-06-28 00:56:55 +0900 (Thu, 28 Jun 2018)

  New Revision: 63772

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63772

  Log:
    Added guard condition for old ruby about RubyVM::MJIT.
    
      Test libraries under the test/lib is used with default gems in
      their repositories. default gems may support old ruby like
      Ruby 2.5. When default gems invoke test libraries of Ruby core
      with old ruby, they raised
      `uninitialized constant RubyVM::MJIT (NameError)`

  Modified files:
    trunk/test/lib/minitest/unit.rb
Index: test/lib/minitest/unit.rb
===================================================================
--- test/lib/minitest/unit.rb	(revision 63771)
+++ test/lib/minitest/unit.rb	(revision 63772)
@@ -956,7 +956,7 @@ module MiniTest https://github.com/ruby/ruby/blob/trunk/test/lib/minitest/unit.rb#L956
         puts if @verbose
         $stdout.flush
 
-        unless RubyVM::MJIT.enabled? # compiler process is wrongly considered as leaked
+        unless defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled? # compiler process is wrongly considered as leaked
           leakchecker.check("#{inst.class}\##{inst.__name__}")
         end
 

--
ML: ruby-changes@q...
Info: http://www.atdot.net/~ko1/quickml/