title: error: C1083: Cannot open include file: 'pthread.h': No such file or directory
body: <p>I am trying to build a project using Qt creator tool in windows but when I built it , I got this error: 
  error: C1083: Cannot open include file: 'pthread.h': No such file or directory. </p>
  
  <p>So do I have to download this library? but i did not find it </p>
  
  <p>I am using Qt in order to open aa tool called netanim used for NS3 tool</p>
  
  <p>If any one can help me in this issue, I would be appreciative. </p>
  
  <p>Thanks in advance </p>