title: C - goto a label that located in an external file
body: <p>Say I got 2 C source files <code>A.c</code>, <code>B.c</code>.</p>
  
  <p><code>A.c</code> contains a label, that I want to just to from the module <code>B.c</code>.</p>
  
  <p><code>A.c</code> contains only 1 function:</p>
  
  <pre><code>int f() {
     // some commands
     aLabel:
     // some more commands
     return 1;
  }
  </code></pre>
  
  <p><code>B.c</code> also contains only 1 function:</p>
  
  <pre><code>extern aLabel;
  
  int g() {
    // do some stuff
    goto aLabel;
  }
  </code></pre>
  
  <p>Obviously these 2 files are linked together to a final .exe file.</p>
  
  <p>How do I jump to an external label?</p>
  
  <p>Thanks in advance.</p>