HAVE_LONG_LONG_INT

[Daniel J. <dan...@gm...>]

We have a lot of code that is only included if HAVE_LONG_LONG_INT is
defined. Now, C99 requires that type (long long int as well as
unsigned long long int, both with 64 bits - excluding padding bits of
course).

Thus I think we should get rid of those conditionals depending on
HAVE_LONG_LONG_INT.

Because that affects a lot of code, the best approach is probably to
only gradually remove occurrences of such conditionals (as opposed to
a massive change).

Ideas / Thoughts?