title: gud-gdb emacs 24 not working
body: <p>I'm having difficulties with gdb under emacs 24.
  I compiled my c code with the -g switch, and the symbol table loads in gdb.
  The problem I'm having is that no source code is shown when I load my application, no breakpoints are visible. I guess there appears to be no connection between the source code buffer and gdb buffer.</p>
  
  <p>I have used gdb under emacs before (emacs 22, and 23) and it worked well and now it doesn't.
  I also tried it under <code>emacs -q</code> so no plugins are loaded in case my .emacs was at fault, no joy.</p>
  
  <p>Just to recap (so I don't get "compile with -g" answers):</p>
  
  <ul>
  <li>I compiled with -g I loaded emacs with no plugins </li>
  <li>I used <code>annotate=3</code>with gud-gdb </li>
  <li>I even tried gdb-mi (doesn't work at all, didn't pursue
  this road any further)</li>
  </ul>
  
  <p>Gdb ain't working with source code showing (with breakpoints). 
  What can I do to fix it, or at least how can I find out what's wrong?</p>