ERROR: Error installing dashing:
ERROR: Failed to build gem native extension.

/usr/bin/ruby1.9.1 extconf.rb

Gem files will remain installed in /var/lib/gems/1.9.1/gems/eventmachine-1.0.3 for inspection.
Results logged to /var/lib/gems/1.9.1/gems/eventmachine-1-0-3/ext/gem_make.out`