Lion, Bundler 1.1.1, RVM, JRuby-1.6.7

jruby_bundler_output

Updating https://github.com/astjohn/subexec.git
Updating https://github.com/elevation/event_calendar.git
Updating https://github.com/zenapsis/backbone-rails.git
Updating https://github.com/parallel588/mustache_rails3.git
Updating https://github.com/bemurphy/minitest-mongoid.git
Fetching gem metadata from https://rubygems.org/.......
Fetching gem metadata from https://rubygems.org/..
Using rake (0.9.2.2) 
Using multi_json (1.1.0) 
Using activesupport (3.1.4) 
Using builder (3.0.0) 
Using i18n (0.6.0) 
Using activemodel (3.1.4) 
Using erubis (2.7.0) 
Using rack (1.3.6) 
Using rack-cache (1.2) 
Using rack-mount (0.8.3) 
Using rack-test (0.6.1) 
Using hike (1.2.1) 
Using tilt (1.3.3) 
Using sprockets (2.0.3) 
Using actionpack (3.1.4) 
Using mime-types (1.17.2) 
Using polyglot (0.3.3) 
Using treetop (1.4.10) 
Using mail (2.3.3) 
Using actionmailer (3.1.4) 
Using arel (2.2.3) 
Using tzinfo (0.3.32) 
Using activerecord (3.1.4) 
Using activerecord-jdbc-adapter (1.2.2) 
Using jdbc-sqlite3 (3.7.2) 
Using activerecord-jdbcsqlite3-adapter (1.2.2) 
Using activeresource (3.1.4) 
Using ansi (1.4.2) 
Using bcrypt-ruby (3.0.1) 
Using bouncy-castle-java (1.5.0146.1) 
Using bson (1.6.1) 
Using bundler (1.1.1) 
Using nokogiri (1.5.2) 
Using ffi (1.0.11) 
Using childprocess (0.3.1) 
Using rubyzip (0.9.6.1) 
Using selenium-webdriver (2.20.0) 
Using xpath (0.1.4) 
Using capybara (1.1.2) 
Using minitest (2.11.3) 
Using capybara_minitest_spec (0.2.1.1) 
Using carrierwave (0.5.8) 
Using mongo (1.6.1) 
Using mongoid (2.4.6) 
Using carrierwave-mongoid (0.1.3) 
Using closure-compiler (1.1.6) 
Using coderay (1.0.5) 
Using coffee-script-source (1.2.0) 
Using execjs (1.3.0) 
Using coffee-script (2.2.0) 
Using rack-ssl (1.3.2) 
Using json (1.6.5) 
Using rdoc (3.12) 
Using thor (0.14.6) 
Using railties (3.1.4) 
Using coffee-rails (3.1.1) 
Using daemons (1.1.8) 
Using database_cleaner (0.7.1) 
Using orm_adapter (0.0.6) 
Using warden (1.1.1) 
Using devise (2.0.4) 
Using ejs (1.0.0) 
Using event-calendar (2.3.3) from https://github.com/elevation/event_calendar.git (at master) 
Using eventmachine (0.12.10) 
Using factory_girl (2.6.3) 
Using factory_girl_rails (1.7.0) 
Installing thin (1.3.1) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /Users/astjohn/.rvm/rubies/jruby-1.6.7/bin/jruby extconf.rb 
WARNING: JRuby does not support native extensions or the `mkmf' library very well.
Check http://kenai.com/projects/jruby/pages/Home for alternatives.
checking for main() in -lc... no
creating Makefile

make
/usr/bin/gcc-4.2 -I. -I. -I/Users/astjohn/.rvm/rubies/jruby-1.6.7/lib/native/include/ruby -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE        -fPIC -DTARGET_RT_MAC_CFM=0  -fno-omit-frame-pointer -fno-strict-aliasing  -fexceptions    -arch amd64 -c parser.c
gcc-4.2: Invalid arch name : amd64
make: *** [parser.o] Error 1


Gem files will remain installed in /Users/astjohn/.rvm/gems/jruby-1.6.7/gems/thin-1.3.1 for inspection.
Results logged to /Users/astjohn/.rvm/gems/jruby-1.6.7/gems/thin-1.3.1/ext/thin_parser/gem_make.out
An error occured while installing thin (1.3.1), and Bundler cannot continue.
Make sure that `gem install thin -v '1.3.1'` succeeds before bundling.

Moral of the story = JRuby C Extension support is still experimental. Avoid these gems.