title: Missing header files using embedded C test environment
body: <p>I am currently working on my project wherein I need to program a DSP processor for a modem to do binary FSK modulation. The system was earlier using a QPSK modulation. I have use the same infrastructure, only need to modify the frequency modulation technique. The DSP processor is simulated using a set of C files on a LINUX machine and all the code is tested out on LINUX before moving on to the actual device. </p>
  
  <p>Right now I have just started with the programming and I am just trying to compile my current codeset. I am facing a lot of issues with missing header files.</p>
  
  <p>The device infra files use the header files like:</p>
  
  <ul>
  <li>filter.h, </li>
  <li>sysreg.h, </li>
  <li>builtins.h</li>
  </ul>
  
  <p>Now I am getting all these headers as "file missing" errors. I was able to fix a couple with</p>
  
  <pre><code>#include &lt;sys/reg.h&gt;
  #include &lt;linux/filter.h&gt;
  </code></pre>
  
  <p>But the builtins.h file is still missing and I am not able to compile the code. </p>
  
  <p>I am using UBUNTU 11.10 and gcc version 4.6.1. Is there some special set of files that I need to update for programming with embedded C. Any help would be much appreciated.</p>