remark on defining size of basic types

here is a problem in using 64 big ints on windows
(at least to me its a problem - there are few options
etc, being not sure how it works etc) and how much
more easy and good it would be if long would just have 64
bits
the conclusion is - whouldnt just compilers offer
a way of defining it how long long int shorts
are ? imo it should be much better andportability of
codes probably would be increased