title: fatal error : aux.h No such file or directory (Ubuntu)
body: <p>I'm learning how to compile the Linux kernel on Ubuntu. Following step by step, I encountered errors like this. There is no problem until</p>
  <pre><code>$ sudo make menuconfig
  </code></pre>
  <p>but sudo make doesn't work. I installed these libs.</p>
  <pre><code>sudo apt-get install libncurses5-dev
  sudo apt-get install libssl-dev
  sudo apt-get install libelf-dev
  sudo apt-get install flex
  sudo apt-get install bison
  </code></pre>
  <p>How can I include this header file?</p>
  <pre><code>drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c:25:10: fatal error: aux.h: No such file or directory
  25 | #include &quot;aux.h&quot;
  
  </code></pre>
  <p><a href="https://i.stack.imgur.com/sfsBo.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/sfsBo.png" alt="enter image description here" /></a></p>