* fix seg fault with the xcb (soft and render) engines
Notes:
* install fontconfig >= 2.7: it frees correctly its mem
* strangely, the xrender xlib and gl xlib engines are
segfaulting when XCloseDisplay is called (in the shutdown
function). It does not with soft xlib. I absolutely don't
know why.
SVN revision: 43373
Vincent Torri
Cedric BAIL