From: Luis Lavena <luislavena@...>
Date: 2010-02-09T22:35:31+09:00
Subject: Re: Problems using the 'extensions' gem - can anyone help?

On Feb 9, 2:14 pm, innes <inn...@gmail.com> wrote:
> I'm running Ruby 1.9.1-p378 (RC2) on windows, installed from the
> RubyInstaller.org site.
> I've installed 'extensions' gem ("gem install -r extensions").
>
> When I run irb and try and "require 'extensions/all" I get the
> following error:
>
> C:\Windows\System32>irb
> irb(main):001:0> require 'rubygems'
> => false
> irb(main):002:0> require 'extensions/all'
> NameError: uninitialized constant VERSION
>       [snip]
>
> Some code in the extensions/_base.rb is checking VERSION to determine
> if running on a new enough version of ruby. This constant isn't
> defined (NB: RUBY_VERSION is defined).
>
> When I set VERSION = RUBY_VERSION before require'ing 'extensions/all'
> I get this error instead:
>
> RuntimeError: Ruby/Extensions: internal error: was supposed to
> implement Array#select!, but it didn't!
>         from C:/Ruby19/lib/ruby/gems/1.9.1/gems/extensions-0.6.0/lib/
> extensions/_base.rb:113:in `implement'
>
> Does anyone recognise this problem?

REport this to the gem author:

http://gemcutter.org/gems/extensions

Oh, there is no author in the gem... hmn:

http://extensions.rubyforge.org/rdoc/index.html

"Gavin Sinclair"

Ask him about it and proper support of Ruby 1.9.

There is also the backports gem:

http://gemcutter.org/gems/backports

--
Luis Lavena