From: Charles Oliver Nutter <headius@...>
Date: 2010-01-22T17:27:45+09:00
Subject: [ruby-core:27684] Re: [Feature #2619] Proposed method: 	Process.fork_supported?

On Thu, Jan 21, 2010 at 11:27 PM, Yukihiro Matsumoto <matz@ruby-lang.org> wrote:
> We added a new behavior of defined?/respond_to? to 1.9 for exact same
> purpose in more generic way. ��We are not going to add redundant
> feature. ��If you want to stick with 1.8, JRuby, IronRuby or whatever,
> you have to persuade their maintainers.

Except that as Akira pointed out, even on the C impl you can't know
whether the system itself has stubbed out certain functionality and
won't actually provide it. So everyone that expects respond_to? in
1.9+ to produce a definitive result will still be mistaken. What have
we gained?

- Charlie