windows7にrmagickをインストールしました。

C:\Sites>bundle install
Fetching gem metadata from https://rubygems.org/..........

Fetching additional metadata from https://rubygems.org/..

Resolving dependencies...

Using rake 10.3.2

。。。

Using rails 4.0.2

Using rdoc 4.1.1



Gem::Ext::BuildError: ERROR: Failed to build gem native extension.



    C:/RailsInstaller/Ruby1.9.3/bin/ruby.exe extconf.rb

checking for Ruby version >= 1.8.5... yes

無効なドライブ指定です。

Unable to get ImageMagick version

*** extconf.rb failed ***

Could not create Makefile due to some reason, probably lack of

necessary libraries and/or headers.  Check the mkmf.log file for more

details.  You may need configuration options.



Provided configuration options:

        --with-opt-dir

        --without-opt-dir

        --with-opt-include

        --without-opt-include=${opt-dir}/include

        --with-opt-lib

        --without-opt-lib=${opt-dir}/lib

        --with-make-prog

        --without-make-prog

        --srcdir=.

        --curdir

        --ruby=C:/RailsInstaller/Ruby1.9.3/bin/ruby



extconf failed, exit code 1



Gem files will remain installed in C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rmagick-2.13.2 for inspection.

Results logged to C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/extensions/x86-mingw32/1.9.1/rmagick-2.13.2/gem_make.out

An error occurred while installing rmagick (2.13.2), and Bundler cannot continue.

Make sure that `gem install rmagick -v '2.13.2'` succeeds before bundling.

gem install rmagick --platform=ruby -- --with-opt-lib=c:\ImageMagick-6.8.7-Q16\lib --with-opt-include=c:\ImageMagick-6.8.7-Q16\include

dos> gem list rmagick
irb> require 'rmagick'