How to `bundle' install or update with capybara include nokogiriRailsMacOSX Using mini_portile 0.6.1 Gem::Ext::BuildError: ERROR: Failed to build gem native extension. /Users/maangie/.rvm/rubies/ruby-2.1.4/bin/ruby -r ./siteconf20141108-54032-maimfn.rb extconf.rb checking if the C compiler accepts ... yes checking if the C compiler accepts -Wno-error=unused-command-line-argument-hard-error-in-futu