title: size_t can not be found by g++-4.1 or others on Ubuntu 8.1
body: <p>This has happened before to me, but I can't remember how I fixed it.</p>
  
  <p>I can't compile some programs here on a new Ubuntu install... Something is awry with my headers.</p>
  
  <p>I have tried g++-4.1 and 4.3 to no avail.</p>
  
  <pre><code>g++ -g -frepo  -DIZ_LINUX -I/usr/include/linux -I/usr/include -I/include  -c qlisttest.cpp
  /usr/include/libio.h:332: error: ‘size_t’ does not name a type
  /usr/include/libio.h:336: error: ‘size_t’ was not declared in this scope
  /usr/include/libio.h:364: error: ‘size_t’ has not been declared
  /usr/include/libio.h:373: error: ‘size_t’ has not been declared
  /usr/include/libio.h:493: error: ‘size_t’ does not name a type
  /usr/include/stdio.h:294: error: ‘size_t’ has not been declared
  ...
  </code></pre>
  
  <p>the file...</p>
  
  <pre><code>#include &lt;stdio.h&gt;
  #include &lt;stdlib.h&gt;
  #include &lt;string.h&gt;
  #include &lt;unistd.h&gt;
  ...
  
  
  
  @ubuntu:~/work/zpk/src$ cat /usr/include/linux/types.h | grep size_t
  typedef __kernel_size_t    size_t;
  typedef __kernel_ssize_t   ssize_t;
  </code></pre>
  
  <p>types.h is definitely in the path, and is getting picked up. I verified by changing the file name and get an error its missing...</p>
  
  <p>Does anyone have any ideas...? I would really appreciate the help...</p>