This is trunk: sierramadre:EdenModel.eomodeld pierce$ /usr/local/bin/macruby -e "require 'rexml/document'" /Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/1.9.0/ rexml/attribute.rb:18:in `<class:Attribute>': uninitialized constant REXML::Attribute::NAME_STR (NameError) from /Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/ 1.9.0/rexml/attribute.rb:9:in `<module:REXML>' from /Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/ 1.9.0/rexml/attribute.rb:4:in `<top (required)>' from /Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/ 1.9.0/rexml/element.rb:3:in `require' from /Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/ 1.9.0/rexml/element.rb:3:in `<top (required)>' from /Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/ 1.9.0/rexml/document.rb:1:in `require' from /Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/ 1.9.0/rexml/document.rb:1:in `<top (required)>' from -e:1:in `require' from -e:1:in `<main>'