[Patch] Basic fixes for 64 bit platforms

[Pavel Machek]

Hi!

> I have installed bird on my new 64-bit (Opteron-based) router. And it
> crashed as soon as I tried "show route" command via "birdc". I checked
> the compilation logs and found out that the bird code makes a Very Bad
> Assumption (sizeof(int)>=sizeof(void*)) in several places. On AMD64 and
> several other 64-bit platforms pointers are 64 bit long, but "int" is
> still 32-bit and not enough to hold a pointer value.
> 
> I made a patch (attached) which fixes all the bugs which were detected
> by the compiler (complaining about integer/pointer size mismatch). 

Patch looks good for me.
								Pavel
-- 
teflon -- maybe it is a trademark, but it should not be.