title: Ruby build failed using rbenv install 2.1.3 Ubuntu 16.04 LTS
body: <p>I want to install ruby 2.1.3 using this command:</p>
  
  <pre><code>rbenv install 2.1.3
  </code></pre>
  
  <p>But the result is BUILD FAILED.</p>
  
  <p>I have tried most of the suggestion from Google, but still error. Here is the latest error message:</p>
  
  <pre><code>Last 10 log lines:
  make[1]: *** Waiting for unfinished jobs....
  compiling psych_to_ruby.c
  installing default psych libraries
  linking shared-object nkf.so
  linking shared-object psych.so
  make[2]: Leaving directory '/tmp/ruby-build.20170129014849.4100/ruby-2.1.3/ext/nkf'
  make[2]: Leaving directory '/tmp/ruby-build.20170129014849.4100/ruby-2.1.3/ext/psych'
  make[1]: Leaving directory '/tmp/ruby-build.20170129014849.4100/ruby-2.1.3'
  uncommon.mk:180: recipe for target 'build-ext' failed
  make: *** [build-ext] Error 2
  </code></pre>