From: Xeno Campanoli <xcampanoli@...>
Date: 2007-07-19T07:32:47+09:00
Subject: Re: hpricot won't install on Ubuntu and complains because mkmf.rb is missing

snowy@schneeweis.at wrote:
> On 6 Jul., 21:20, Xeno Campanoli <xcampan...@gmail.com> wrote:

I think the resolution was installing ruby1.8-dev:

> xeno@radioflyer:~$ apt-cache policy ruby1.8-dev
> ruby1.8-dev:
>   Installed: 1.8.5-4ubuntu2
>   Candidate: 1.8.5-4ubuntu2
>   Version table:
>  *** 1.8.5-4ubuntu2 0
>         500 http://archive.ubuntu.com feisty/main Packages
>         100 /var/lib/dpkg/status
xc

>> ...
>> 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
> 
> I got a similar error when I tried to install mongreal with
> 
> # gem install mongrel
> 
> In another tutorial I found the advice to download the ruby sources
> 
> # apt-get install ruby1.8-dev build-essential
> 
> After I did that I had no problems to install mongreal.
> Maybe you have the same problem?
> 
> Martin
> 
> 
> 


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