2011/7/22 nobu <ko1 / atdot.net>:
> nobu    2011-07-22 21:06:42 +0900 (Fri, 22 Jul 2011)
>
>  New Revision: 32621
>
>  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=32621
>
>  Log:
>    * object.c (rb_mod_{const,cvar}_defined, rb_obj_ivar_defined):
>      avoid inadvertent symbol creation in reflection methods.  based
>      on a patch by Jeremy Evans at [ruby-core:38367].  [Feature #5072]
>    * vm_method.c (rb_mod_method_defined)
>      (rb_mod_{public,private,protected}_method_defined)
>      (obj_respond_to): ditto.
>    * parse.y (rb_check_id): new function returns already interned ID
>      or 0.

これ以降、RSS のテストで失敗して、RubySpec で SEGV しています。

http://www.rubyist.net/~akr/chkbuild/debian/ruby-trunk/log/20110722T122400Z.diff.html.gz
-- 
[田中 哲][たなか あきら][Tanaka Akira]