From: Roger Pack <rogerpack2005@...>
Date: 2010-07-22T00:50:11+09:00
Subject: Re: how to make "gem install rmagick" work?

winter heat wrote:
> I wanted to install rmagick on Win7 but it can't install:
> Is there any way to make it work?
> 
>     C:\>gem list -r rmagick
> 
>     *** REMOTE GEMS ***
> 
>     rmagick (2.13.1)
>     rmagick4j (0.3.7, 0.3.4 java)
> 
> 
>     C:\>gem install rmagick
>     Building native extensions.  This could take a while...
>     ERROR:  Error installing rmagick:
>             ERROR: Failed to build gem native extension.
> 
>     c:/ruby/bin/ruby.exe extconf.rb
>     checking for Ruby version >= 1.8.5... yes
>     Invalid drive specification.

I've never seen that specific error message, but have had success 
getting it to build.
I'm assuming you're using a rubyinstaller build of ruby.
If so, install the devkit, then look for instructions on the gem list
http://wiki.github.com/oneclick/rubyinstaller/gem-list

specifically here are my own:
http://betterlogic.com/roger/?p=2186

@Luis
Unfortunately the binary gems released by the rmagick team on rubyforge 
are 1.8.x only, last time I checked.  Of course it's been awhile since I 
checked.

GL.
-r
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