gistfile1.txt

$ bundle
Fetching source index for http://rubygems.org/
Using rake (0.9.2) from /Users/ale/.rvm/gems/jruby-1.6.4@global/specifications/rake-0.9.2.gemspec 
Using multi_json (1.0.3) from /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/specifications/multi_json-1.0.3.gemspec 
Using activesupport (3.1.0) from /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/specifications/activesupport-3.1.0.gemspec 
Using bouncy-castle-java (1.5.0146.1) from /Users/ale/.rvm/gems/jruby-1.6.4@global/specifications/bouncy-castle-java-1.5.0146.1.gemspec 
Using builder (3.0.0) from /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/specifications/builder-3.0.0.gemspec 
Using columnize (0.3.4) from /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/specifications/columnize-0.3.4.gemspec 
Using diff-lcs (1.1.3) from /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/specifications/diff-lcs-1.1.3.gemspec 
Installing json (1.6.0) with native extensions Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /Users/ale/.rvm/rubies/jruby-1.6.4/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 re.h... yes
checking for ruby/st.h... yes
creating Makefile


Gem files will remain installed in /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/json-1.6.0 for inspection.
Results logged to /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/json-1.6.0/ext/json/ext/parser/gem_make.out

  build_extensions at /Users/ale/.rvm/rubies/jruby-1.6.4/lib/ruby/site_ruby/1.8/rubygems/installer.rb:552
              each at org/jruby/RubyArray.java:1603
  build_extensions at /Users/ale/.rvm/rubies/jruby-1.6.4/lib/ruby/site_ruby/1.8/rubygems/installer.rb:505
           install at /Users/ale/.rvm/rubies/jruby-1.6.4/lib/ruby/site_ruby/1.8/rubygems/installer.rb:180
           install at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/source.rb:101
    preserve_paths at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/rubygems_integration.rb:78
           install at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/source.rb:91
               run at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/installer.rb:58
   with_build_args at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/rubygems_integration.rb:93
               run at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/installer.rb:57
              each at org/jruby/RubyArray.java:1603
              send at org/jruby/RubyKernel.java:2092
              each at (__FORWARDABLE__):3
               run at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/installer.rb:49
           install at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/installer.rb:8
           install at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/cli.rb:220
              send at org/jruby/RubyKernel.java:2092
               run at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/vendor/thor/task.rb:21
       invoke_task at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/vendor/thor/invocation.rb:118
          dispatch at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/vendor/thor.rb:263
             start at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/lib/bundler/vendor/thor/base.rb:386
            (root) at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/gems/bundler-1.0.18/bin/bundle:13
              load at org/jruby/RubyKernel.java:1063
            (root) at /Users/ale/.rvm/gems/jruby-1.6.4@pips-jruby/bin/bundle:19

$ gem install json
Successfully installed json-1.6.0.1-java
1 gem installed