What is *.o file?
<p>I'm compiling own project. And it halted by this error:</p>

<blockquote>
  <p>LINK||fatal error LNK1181: cannot open
  input file
  'obj\win\release\src\lua\bindings.o'|</p>
</blockquote>

<p>Compiling using Code::Blocks with VS 2005/2008 compiler under win7.
There are also lot of another empty directories where *.o files are missing.</p>

<p>What do they do?</p>
