Redmine3.0.0をインストールしようと「bundle install」を実行すると失敗した。
Gem::Ext::BuildError: ERROR: Failed to build gem native extension. /home/user/.rbenv/versions/2.1.1/bin/ruby extconf.rb checking for Ruby version >= 1.8.5... yes checking for gcc... yes checking for Magick-config... yes checking for ImageMagick version >= 6.4.9... *** 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=/home/user/.rbenv/versions/2.1.1/bin/ruby extconf.rb:154:in ``': No such file or directory - convert (Errno::ENOENT) from extconf.rb:154:in `block in <main>' from /home/user/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:918:in `block in checking_for' from /home/user/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:351:in `block (2 levels) in postpone' from /home/user/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:321:in `open' from /home/user/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:351:in `block in postpone' from /home/user/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:321:in `open' from /home/user/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:347:in `postpone' from /home/user/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:917:in `checking_for' from extconf.rb:151:in `<main>' extconf failed, exit code 1 Gem files will remain installed in /home/user/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rmagick-2.13.4 for inspection. Results logged to /home/user/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/extensions/x86-linux/2.1.0-static/rmagick-2.13.4/gem_make.out An error occurred while installing rmagick (2.13.4), and Bundler cannot continue. Make sure that `gem install rmagick -v '2.13.4'` succeeds before bundling.
どうやらimagemagickがインストールされていないことが問題らしい。 以下のコマンドを実行して、再度bundle installし直すと解決した。
$ sudo apt-get install imagemagick