title: Make Error: Undefined symbols for architecture x86_64
body: <p>I'm a pretty novice programmer (as in I only code when I need to), but I mostly work in television. I've been trying to compile a tool I downloaded <a href="https://github.com/lu-zero/bmdtools" rel="nofollow">(bmdtools)</a> for compilation on OSX because we (for whatever reason) are not allowed to use Linux machines. </p>
  
  <p>So, after installing all the libraries and linking what I need to, I ran "make" and got the error message:</p>
  
  <pre><code>ld: symbol(s) not found for architecture x86_64
  </code></pre>
  
  <p>I had then read that adding -stdlib=libc++ would fix whatever issue was being reflected. And this time it finishes, creating all three files that should be created. However, those three files are completely blank. Zero bytes. </p>
  
  <p>Any help or insight would be greatly appreciated. Thanks!</p>