If a Key-down event didn't meet the expected criteria,
the event was ignored in the "peek" loop, but it was
never removed from the input queue either, so it
remained at the top of the queue.
It isn't clear if this fixes the dedicated arrow keys
hanging, but if those were resulting in strange
event values too, it just might.
> This patch fixes warnings relating to pointers (using int *
> instead of unsigned int * ), provides prototypes for some
> functions, and adds a missing argument to one of the functions
>
> It also changes a bit in the way flex/bison are used in the
> Borland makefile to allow me to test compilation with those
> utilities using a batch file.
