无法安装 RMagick 0.0.0。找不到 Magick 配置

我正在运行 debian 服务器并在一段时间后升级了所有软件包（apt-get update, apt-get upgrade, apt-get distro-upgrade）。然后 rmagick 不再工作了，因为 imagemagick 被更新了。

所以我跑了：

gem uninstall rmagick
bundle install

然后我得到了这个：

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

    /usr/local/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for gcc... yes
checking for Magick-config... no
Can't install RMagick 0.0.0. Can't find Magick-config in /usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games

*** 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=/usr/local/bin/ruby

extconf failed, exit code 1

Gem files will remain installed in /srv/www/www.example.com/shared/vendor/bundle/ruby/2.1.0/gems/rmagick-2.13.3 for inspection.
Results logged to /srv/www/www.example.com/shared/vendor/bundle/ruby/2.1.0/extensions/x86_64-linux/2.1.0-static/rmagick-2.13.3/gem_make.out
An error occurred while installing rmagick (2.13.3), and Bundler cannot continue.
Make sure that `gem install rmagick -v '2.13.3'` succeeds before bundling.

This is cat mkmf.log:

    checking for Ruby version >= 1.8.5... -------------------- yes

--------------------

find_executable: checking for gcc... -------------------- yes

--------------------

find_executable: checking for Magick-config... -------------------- no

--------------------

Can't install RMagick 0.0.0. Can't find Magick-config in /usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games

谁能帮我这个？

对于将来遇到这个问题的人：我花了很长时间但它已经解决了。这就是我所做的：

• sudo apt-get purge imagemagick libmagickcore-dev libmagickwand-dev
• sudo rm -R /usr/include/ImageMagick-6/magick
• sudo ln -s /usr/lib/x86_64-linux-gnu/ImageMagick-6.8.9/bin-Q16/Magick-config /usr/bin/Magick-config
• sudo apt-get install imagemagick libmagickcore-dev libmagickwand-dev