From: Luis Lavena <redmine@...>
Date: 2010-01-21T09:36:33+09:00
Subject: [ruby-core:27643] [Feature #2619] Proposed method: Process.fork_supported?

Issue #2619 has been updated by Luis Lavena.


Hmn, defined?(fork) is not very useful:

<pre><code>
C:\Users\Luis>pik ruby -e "puts defined?(fork)"
IronRuby 0.9.3.0 on .NET 2.0.0.0

nil

jruby 1.4.0 (ruby 1.8.7 patchlevel 174) (2009-11-02 69fbfa3) (Java HotSpot(TM) Client VM 1.6.0_17) [x86-java]

method

ruby 1.8.6 (2009-06-08 patchlevel 369) [i386-mswin32]

method

ruby 1.8.6 (2009-08-04 patchlevel 383) [i386-mingw32]

method

ruby 1.8.7 (2009-12-24 patchlevel 248) [i386-mingw32]

method

ruby 1.8.7 (2009-12-24 patchlevel 248) [i386-mswin32]

method

ruby 1.9.1p376 (2009-12-07 revision 26041) [i386-mingw32]

method

ruby 1.9.1p376 (2009-12-07 revision 26041) [i386-mswin32]

method

ruby 1.9.2dev (2010-01-02 trunk 26229) [i386-mingw32]
</code></pre>

Yes, 1.9.2 returns nothing, not even nil

That means that checking for fork definition on any version as condition will make that code execute.

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