git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@25542 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merges r24628 from trunk into ruby_1_9_1.¶
(rb_threadptr_execute_interrupts): ditto.
[ruby-dev:38060]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@25542 b2dd03c8-39d4-4d8f-98ff-823fe69b080e