title: Error Installing "kgio-2.9.2" Gem on Windows
body: <p>Having problems installing the kgio gem on Windows</p>
  
  <p>Using Ruby 2.1.6 32-bit &amp; DevKit installed.</p>
  
  <pre><code>Installing kgio 2.9.2 with native extensions
  Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
      C:/Ruby21/bin/ruby.exe extconf.rb
  checking for CLOCK_MONOTONIC in time.h... yes
  checking for clockid_t in time.h... yes
  checking for clock_gettime() in -lrt... no
  checking for t_open() in -lnsl... no
  checking for socket() in -lsocket... no
  checking for poll() in poll.h... no
  checking for getaddrinfo() in sys/types.h,sys/socket.h,netdb.h... no
  getaddrinfo required
  
  *** 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=C:/Ruby21/bin/ruby
          --with-rtlib
          --without-rtlib
          --with-nsllib
          --without-nsllib
          --with-socketlib
          --without-socketlib
  
  extconf failed, exit code 1
  Gem files will remain installed in C:/Ruby21/lib/ruby/gems/2.1.0/gems/kgio-2.9.2
   for inspection.
  Results logged to C:/Ruby21/lib/ruby/gems/2.1.0/extensions/x86-mingw32/2.1.0/kgi
  o-2.9.2/gem_make.out
  An error occurred while installing kgio (2.9.2), and Bundler cannot continue.
  
  Make sure that `gem install kgio -v '2.9.2'` succeeds before bundling.
  </code></pre>