desc 'Ensure all the cross compiled versions are installed' task :bootstrap do fail "Sorry, this only works on OSX and Linux" if RUBY_PLATFORM =~ /mswin|mingw/ versions = %w(1.8.7-p371 1.9.3-p392 2.0.0-p0) versions.each do |version| puts "[INFO] Attempt to cross-compile Ruby #{version}" ruby "-Ilib bin/rake-compiler cross-ruby VERSION=#{version}" end end