capybara-webkit インストール時のトラブルシューティング #01

環境

項目	バージョン
OS	CentOS 6.5
Ruby	ruby 2.1.3p242 (2014-09-19 revision 47630) [x86_64-linux]
Rails	4.1.6

状況

1. rails new で新規プロジェクトを作成
2. Gemfile に capybara と capybara-webkit を追加
3. bundle install を実行
4. 次のエラーが発生

エラー

[vagrant@vagrant-centos65 foo]$ bundle
Fetching gem metadata from https://rubygems.org/..........
Resolving dependencies...
Using rake 10.4.2
# --- 省略 ---
Installing mini_portile 0.6.1
Installing nokogiri 1.6.5
Installing xpath 2.0.0
Installing capybara 2.4.4

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

    /home/vagrant/.rbenv/versions/2.1.3/bin/ruby extconf.rb 
Command 'qmake -spec linux-g++ ' not available

Makefile not found

Gem files will remain installed in /home/vagrant/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/capybara-webkit-1.3.1 for inspection.
Results logged to /home/vagrant/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/extensions/x86_64-linux/2.1.0-static/capybara-webkit-1.3.1/gem_make.out
An error occurred while installing capybara-webkit (1.3.1), and Bundler cannot continue.
Make sure that `gem install capybara-webkit -v '1.3.1'` succeeds before bundling.

対策

$ sudo yum install -y libxml2-devel
$ sudo yum install -y libxslt-devel