matz	2008-01-19 03:48:12 +0900 (Sat, 19 Jan 2008)

  New Revision: 15118

  Modified files:
    trunk/ChangeLog
    trunk/test/ruby/test_thread.rb
    trunk/thread.c

  Log:
    * thread.c (thread_create_core): prohibit thread creation in the
      frozen thread group.  a patch in [ruby-dev:33176] from sheepman
      <sheepman AT sheepman.sakura.ne.jp>.
    
    * thread.c (thread_create_core): should inherit ThreadGroup from
      the current thread.

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=15118&r2=15117&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/thread.c?r1=15118&r2=15117&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/test/ruby/test_thread.rb?r1=15118&r2=15117&diff_format=u