From: Tim Hunter <TimHunter@...>
Date: 2009-05-10T21:52:05+09:00
Subject: Re: Problem install rmagick

Fresh Mix wrote:
> # gem1.8 install rmagick works fine, but:
> 
> # gem1.9 install rmagick
> Building native extensions.  This could take a while...
> ERROR:  Error installing rmagick:
>   ERROR: Failed to build gem native extension.
> 
> /usr/bin/ruby1.9 extconf.rb install rmagick
> extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
>   from extconf.rb:1:in `<main>'
> 
> 
> Gem files will remain installed in
> /var/lib/gems/1.9.0/gems/rmagick-2.9.1 for inspection.
> Results logged to
> /var/lib/gems/1.9.0/gems/rmagick-2.9.1/ext/RMagick/gem_make.out

mkmf.rb is part of the standard library in Ruby. Either you don't have 
it installed or it's not in Ruby's library path. How did you install 
Ruby 1.9?

-- 
RMagick: http://rmagick.rubyforge.org/