diff -p -up fireflies-2.07/src/vroot.h~ fireflies-2.07/src/vroot.h --- fireflies-2.07/src/vroot.h~ 2005-12-09 04:07:30.000000000 +0100 +++ fireflies-2.07/src/vroot.h 2009-07-28 10:14:10.000000000 +0200 @@ -82,6 +82,8 @@ static const char vroot_rcsid[] = #include <X11/Xatom.h> #include <X11/Xlib.h> +#include <stdio.h> + static Window #ifdef __STDC__ /* ANSIfication added by jwz, to avoid superfluous warnings. */ VirtualRootWindowOfScreen(Screen *screen)