out.log

ProductName:	Mac OS X
ProductVersion:	10.12
BuildVersion:	16A323
rvm 1.26.11 (latest) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]
ruby 2.1.9p490 (2016-03-30 revision 54437) [x86_64-darwin16.0]
artifactory (2.5.0)
bigdecimal (1.2.4)
builder (3.2.2)
bundle (0.0.1)
bundler (1.12.5)
bundler-unload (1.0.2)
cane (3.0.0)
codecov (0.1.5)
coderay (1.1.1)
countloc (0.4.0)
diff-lcs (1.2.5)
docile (1.1.5)
docker-api (1.32.1)
erubis (2.7.0)
excon (0.53.0)
executable-hooks (1.3.2)
ffi (1.9.14)
fuubar (2.2.0)
gem-wrappers (1.2.7)
gssapi (1.2.0)
gyoku (1.3.1)
hashie (3.4.6)
httpclient (2.8.2.4)
io-console (0.4.3)
json (2.0.2, 1.8.1)
little-plugger (1.1.4)
log_switch (0.3.0)
logging (2.1.0)
method_source (0.8.2)
mini_portile2 (2.1.0)
minitest (4.7.5)
mixlib-install (2.1.0)
mixlib-log (1.7.1)
mixlib-shellout (2.2.7)
mixlib-versioning (1.1.0)
multi_json (1.12.1)
net-scp (1.2.1)
net-ssh (3.2.0)
net-ssh-gateway (1.2.0)
nori (2.6.0)
parallel (1.9.0)
pry (0.10.4)
psych (2.0.5)
rainbow (2.1.0)
rake (11.3.0, 10.1.0)
rdoc (4.1.0)
rspec (3.5.0)
rspec-core (3.5.4)
rspec-expectations (3.5.0)
rspec-its (1.2.0)
rspec-mocks (3.5.0)
rspec-support (3.5.0)
ruby-progressbar (1.8.1)
rubygems-bundler (1.4.4)
rubyntlm (0.6.1)
rubyzip (1.2.0)
rvm (1.11.3.9)
safe_yaml (1.0.4)
simplecov (0.12.0)
simplecov-html (0.10.0)
slop (3.6.0)
sslshake (1.0.12)
term-ansicolor (1.4.0)
test-kitchen (1.13.2)
test-unit (2.1.9.0)
text-table (1.2.4)
thor (0.19.1)
tins (1.12.0)
url (0.3.2)
winrm (2.0.3)
Fetching gem metadata from https://rubygems.org/
Fetching version metadata from https://rubygems.org/
Fetching dependency metadata from https://rubygems.org/
Resolving dependencies...
Using rake 11.3.0
Using artifactory 2.5.0
Using builder 3.2.2
Using bundler 1.12.5
Using parallel 1.9.0
Using json 2.0.2
Using docile 1.1.5
Using simplecov-html 0.10.0
Using url 0.3.2
Using coderay 1.1.1
Using countloc 0.4.0
Using diff-lcs 1.2.5
Using excon 0.53.0
Using erubis 2.7.0
Using ffi 1.9.14
Using rspec-support 3.5.0
Using ruby-progressbar 1.8.1
Using hashie 3.4.6
Using httpclient 2.8.2.4
Using method_source 0.8.2
Using mixlib-log 1.7.1
Using slop 3.6.0
Using rainbow 2.1.0
Using rubyzip 1.2.0
Using sslshake 1.0.12
Using thor 0.19.1
Using mixlib-shellout 2.2.7
Using net-ssh 3.2.0
Using little-plugger 1.1.4
Using multi_json 1.12.1
Using nori 2.6.0
Using rubyntlm 0.6.1
Using mixlib-versioning 1.1.0
Using safe_yaml 1.0.4
Using log_switch 0.3.0
Using mini_portile2 2.1.0
Using tins 1.12.0
Using text-table 1.2.4
Using gyoku 1.3.1
Using cane 3.0.0
Using simplecov 0.12.0
Using docker-api 1.32.1
Using gssapi 1.2.0
Using rspec-core 3.5.4
Using rspec-expectations 3.5.0
Using rspec-mocks 3.5.0
Using pry 0.10.4
Using net-scp 1.2.1
Using net-ssh-gateway 1.2.0
Using logging 2.1.0
Using mixlib-install 2.1.0
Installing nokogiri 1.6.8.1 with native extensions

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

    /Users/tvisher/.rvm/rubies/ruby-2.1.9/bin/ruby -r ./siteconf20161008-63417-bnp1yr.rb extconf.rb --use-system-libraries
checking if the C compiler accepts ... yes
checking if the C compiler accepts -Wno-error=unused-command-line-argument-hard-error-in-future... no
Building nokogiri using system libraries.
ERROR: cannot discover where libxml2 is located on your system. please make sure `pkg-config` is installed.
*** 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
	--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=/Users/tvisher/.rvm/rubies/ruby-2.1.9/bin/ruby
	--help
	--clean
	--use-system-libraries
	--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-xml2-dir
	--without-xml2-dir
	--with-xml2-include
	--without-xml2-include=${xml2-dir}/include
	--with-xml2-lib
	--without-xml2-lib=${xml2-dir}/lib
	--with-libxml-2.0-config
	--without-libxml-2.0-config
	--with-pkg-config
	--without-pkg-config
	--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-exslt-dir
	--without-exslt-dir
	--with-exslt-include
	--without-exslt-include=${exslt-dir}/include
	--with-exslt-lib
	--without-exslt-lib=${exslt-dir}/lib
	--with-libexslt-config
	--without-libexslt-config

extconf failed, exit code 1

Gem files will remain installed in /Users/tvisher/.rvm/gems/ruby-2.1.9/gems/nokogiri-1.6.8.1 for inspection.
Results logged to /Users/tvisher/.rvm/gems/ruby-2.1.9/extensions/x86_64-darwin-16/2.1.0/nokogiri-1.6.8.1/gem_make.out
Using term-ansicolor 1.4.0
Using codecov 0.1.5
Using fuubar 2.2.0
Using rspec-its 1.2.0
Using rspec 3.5.0
Using winrm 2.0.3
Using test-kitchen 1.13.2
An error occurred while installing nokogiri (1.6.8.1), and Bundler cannot continue.
Make sure that `gem install nokogiri -v '1.6.8.1'` succeeds before bundling.