[Bro] Problems compiling with --enable-int64

[Vern Paxson]

> Val.cc: In member function 'virtual Val* Val::SizeVal() const':
> Val.cc:567: error: call of overloaded 'abs(const bro_int_t&)' is ambiguous

I'm guessing that the line you're looking at is

	return new Val(abs(val.int_val), TYPE_COUNT);

(it's at a different location in the latest snapshot).  If so, try

	return new Val(bro_int_t(abs(val.int_val)), TYPE_COUNT);

and see if that fixes the problem.

		Vern