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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40901 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
extmk.rb: don't duplicate

* ext/extmk.rb (extract_makefile): do not add dldflags if duplicated.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40902 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-05-24

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40903 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
fix a typo

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40904 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* object.c (rb_obj_clone): should not propagate OLDGEN status.
  This propagation had caused WB miss for class.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40905 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
reapply r40839 [Fixes GH-316]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40906 b2dd03c8-39d4-4d8f-98ff-823fe69b080e