From: Jason Roelofs <jameskilton@...>
Date: 2007-07-07T04:30:35+09:00
Subject: Re: hpricot won't install on Ubuntu and complains because mkmf.rb is missing

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You need the ruby development package (ruby1.8-dev).

Jason

On 7/6/07, Xeno Campanoli <xcampanoli@gmail.com> wrote:
>
> I have mechanize installed on Feisty, which has Ruby 1.8.5, but when I
> just tried to install it on Gutsy, which has 1.8.6, I got the following:
>
> root@joehill:~# gem install mechanize
> Install required dependency hpricot? [Yn]
> Select which gem to install for your platform (i486-linux)
> 1. hpricot 0.6 (mswin32)
> 2. hpricot 0.6 (jruby)
> 3. hpricot 0.6 (ruby)
> 4. hpricot 0.5 (ruby)
> 5. hpricot 0.5 (mswin32)
> 6. Skip this gem
> 7. Cancel installation
> > 3
> Building native extensions.  This could take a while...
> ERROR:  While executing gem ... (Gem::Installer::ExtensionBuildError)
>     ERROR: Failed to build gem native extension.
>
> ruby extconf.rb install mechanize
> extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
>         from extconf.rb:1
>
>
> Gem files will remain installed in
> /usr/lib/ruby/gems/1.8/gems/hpricot-0.6 for inspection.
> Results logged to
> /usr/lib/ruby/gems/1.8/gems/hpricot-0.6/ext/hpricot_scan/gem_make.out
> root@joehill:~#
> ---snip---
> If this is a problem with the Ruby install on Gutsy/Ubuntu, please
> explain that so I can bug it on Launchpad.  Thanks.
>
> xc
> --
> The only sustainable organizing methods focus not on scale,
> but on good design of the functional unit,
> not on winning battles, but on preservation.
>
>

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