title: How to list all included header files by a c file (preferably in Vim)
body: <p>Is there a way to see all the header files included by a c file.  </p>
  
  <p>Lets say a c file contians only one header file, but that header file<br>
  includes 10 header files, and those 10 include further more and so on...  </p>
  
  <p>I want to get a list of all header files that eventually get included</p>