title: GCC fatal error: stdio.h: No such file or directory
body: <p>I'm trying to compile a program in C on OS X 10.9 with GCC 4.9 (experimental). For some reason, I'm getting the following error at compile time:</p>
  <pre class="lang-none prettyprint-override"><code>gcc: fatal error: stdio.h: No such file or directory
  </code></pre>
  <p>I then tried a simple Hello World program:</p>
  <pre class="lang-c prettyprint-override"><code>#include &lt;stdio.h&gt;
  
  int main(int argc, const char *argv[])
  {
      printf(&quot;Hello, world!&quot;);
      return 0;
  }
  </code></pre>
  <p>Again, upon running <code>gcc -o ~/hello ~/hello.c</code>, I got the same error. I'm using an experimental version of <code>gcc</code>, but it seems implausible that there would be a release which generated errors upon importing <code>stdio</code>. What could be causing this issue, and how can it be fixed?</p>