title: Link object file to my project Eclipse CDR
body: <p>I'm working on a project from school, and we were given a .o and a corresponding .h file.
  We need to use several functions from the .o file in our .c program.
  Just placing it in the same directory doesn't work.
  I tried to look for something like this in the project properties, but no good.
  I keep getting <code>../code_files/Search.c:116: undefined reference to 'reportError'</code></p>
  
  <p>I'm using Eclipse (Juno) CDT, gcc MinGW under Windows 7</p>
  
  <p>I know it's possible to include .a files, but I couldn't find any indication on how to include a .o file
  <code>#include "ErrorHandle.h"</code> is included in the main c file. </p>
  
  <p>Anyone knows how to include a .o file to a project?
  Thanks!</p>