bundle

bundle install
Fetching source index from http://rubygems.org/
Using rake 10.1.0
Using i18n 0.6.5
Using minitest 4.7.5
Using multi_json 1.8.1
Using atomic 1.1.14
Using thread_safe 0.1.3
Using tzinfo 0.3.38
Using activesupport 4.0.0
Using builder 3.1.4
Using erubis 2.7.0
Using rack 1.5.2
Using rack-test 0.6.2
Using actionpack 4.0.0
Using mime-types 1.25
Using polyglot 0.3.3
Using treetop 1.4.15
Using mail 2.5.4
Using actionmailer 4.0.0
Using arbre 1.0.1
Using sass 3.2.12
Using thor 0.18.1
Using bourbon 3.1.8
Using coffee-script-source 1.6.3
Using execjs 2.0.2
Using coffee-script 2.2.0
Using railties 4.0.0
Using coffee-rails 4.0.0
Using bcrypt-ruby 3.1.2
Using orm_adapter 0.4.0
Using warden 1.2.3
Using devise 3.1.1
Using formtastic 2.3.0.rc2
Using has_scope 0.6.0.rc
Using responders 1.0.0
Using inherited_resources 1.4.1
Using jquery-rails 3.0.4
Using jquery-ui-rails 4.0.5
Using kaminari 0.14.1
Using activemodel 4.0.0
Using activerecord-deprecated_finders 1.0.3
Using arel 4.0.0
Using activerecord 4.0.0
Using bundler 1.6.3
Using hike 1.2.3
Using tilt 1.4.1
Using sprockets 2.10.0
Using sprockets-rails 2.0.0
Using rails 4.0.0
Using polyamorous 0.6.4
Using ransack 1.0.0
Using sass-rails 4.0.0
Using activeadmin 0.6.0 from https://github.com/gregbell/active_admin (at rails4)
Using awesome_print 1.2.0
Using coderay 1.0.9
Using better_errors 1.0.1
Using debug_inspector 0.0.2
Using binding_of_caller 0.7.2
Using net-ssh 2.7.0
Using net-scp 1.1.2
Using tins 0.12.0
Using term-ansicolor 1.2.2
Using sshkit 1.0.0
Using capistrano 3.0.0
Using capistrano-ext 1.2.1
Using daemons 1.1.9
Using database_cleaner 1.2.0
Using diff-lcs 1.2.4
Using eventmachine 1.0.3
Using http_parser.rb 0.5.3
Using em-websocket 0.5.0
Using factory_girl 4.2.0
Using factory_girl_rails 4.2.1
Using multipart-post 1.2.0
Using faraday 0.8.8
Using ffi 1.9.0
Using formatador 0.2.4
Using mini_portile 0.5.1

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb --use-system-libraries
Extracting libxml2-2.8.0.tar.gz into tmp/x86_64-apple-darwin13.1.0/ports/libxml2/2.8.0... OK
Running 'configure' for libxml2 2.8.0... OK
Running 'compile' for libxml2 2.8.0... OK
Running 'install' for libxml2 2.8.0... OK
Activating libxml2 2.8.0 (from /private/var/folders/_5/n99vg9n55kl40wq2mj1wx6z40000gn/T/bundler20140623-64164-j7k9ve/nokogiri-1.6.0/gems/nokogiri-1.6.0/ports/x86_64-apple-darwin13.1.0/libxml2/2.8.0)...
Extracting libxslt-1.1.26.tar.gz into tmp/x86_64-apple-darwin13.1.0/ports/libxslt/1.1.26... OK
Running 'configure' for libxslt 1.1.26... OK
Running 'compile' for libxslt 1.1.26... OK
Running 'install' for libxslt 1.1.26... OK
Activating libxslt 1.1.26 (from /private/var/folders/_5/n99vg9n55kl40wq2mj1wx6z40000gn/T/bundler20140623-64164-j7k9ve/nokogiri-1.6.0/gems/nokogiri-1.6.0/ports/x86_64-apple-darwin13.1.0/libxslt/1.1.26)...
checking for libxml/parser.h... yes
checking for libxslt/xslt.h... yes
checking for libexslt/exslt.h... yes
checking for iconv_open() in iconv.h... no
checking for iconv_open() in -liconv... yes
checking for xmlParseDoc() in -lxml2... no
-----
libxml2 is missing.  please visit http://nokogiri.org/tutorials/installing_nokogiri.html for help with installing dependencies.
-----
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
	--with-opt-dir
	--without-opt-dir
	--with-opt-include
	--without-opt-include=${opt-dir}/include
	--with-opt-lib
	--without-opt-lib=${opt-dir}/lib
	--with-make-prog
	--without-make-prog
	--srcdir=.
	--curdir
	--ruby=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
	--with-zlib-dir
	--without-zlib-dir
	--with-zlib-include
	--without-zlib-include=${zlib-dir}/include
	--with-zlib-lib
	--without-zlib-lib=${zlib-dir}/lib
	--with-iconv-dir
	--without-iconv-dir
	--with-iconv-include
	--without-iconv-include=${iconv-dir}/include
	--with-iconv-lib
	--without-iconv-lib=${iconv-dir}/lib
	--with-xml2-dir
	--without-xml2-dir
	--with-xml2-include
	--without-xml2-include=${xml2-dir}/include
	--with-xml2-lib
	--without-xml2-lib=${xml2-dir}/lib
	--with-xslt-dir
	--without-xslt-dir
	--with-xslt-include
	--without-xslt-include=${xslt-dir}/include
	--with-xslt-lib
	--without-xslt-lib=${xslt-dir}/lib
	--with-libxslt-config
	--without-libxslt-config
	--with-pkg-config
	--without-pkg-config
	--with-libxml-2.0-config
	--without-libxml-2.0-config
	--with-libiconv-config
	--without-libiconv-config
	--with-iconvlib
	--without-iconvlib
	--with-xml2lib
	--without-xml2lib

extconf failed, exit code 1

Gem files will remain installed in /var/folders/_5/n99vg9n55kl40wq2mj1wx6z40000gn/T/bundler20140623-64164-j7k9ve/nokogiri-1.6.0/gems/nokogiri-1.6.0 for inspection.
Results logged to /var/folders/_5/n99vg9n55kl40wq2mj1wx6z40000gn/T/bundler20140623-64164-j7k9ve/nokogiri-1.6.0/extensions/universal-darwin-13/2.0.0/nokogiri-1.6.0/gem_make.out
An error occurred while installing nokogiri (1.6.0), and Bundler cannot continue.
Make sure that `gem install nokogiri -v '1.6.0'` succeeds before bundling.