From: Nobuyoshi Nakada <nobu@...>
Date: 2009-02-21T04:09:45+09:00
Subject: Re: How to do conditional compile for Ruby 1.9 in a C extension?

Hi,

At Fri, 20 Feb 2009 18:58:55 +0900,
Jason Garber wrote in [ruby-talk:328856]:
> Sorry, nobu, I didn't follow you.  Try again?

Sorry, I misread the parentheses.

> I'm working on updating RedCloth for Ruby 1.9.  Since the output of
> #singleton_methods changed from strings to symbols, I think I need a
> conditional compile.  Here's what I tried:

It's a problem indeed.

> #if RUBY_VERSION < 0x10900
>   if (rb_ary_includes(rb_funcall(self, rb_intern("singleton_methods"),
> 0), btype)) {
> #else
>   if (rb_ary_includes(rb_funcall(self, rb_intern("singleton_methods"),
> 0), rb_str_intern(btype))) {
> #endif

Do you really need to know only if singleton method is defined,
not just self responds to it?

We may have to add a new macro in ruby.h.

-- 
Nobu Nakada