Still Data Type Issue on Different Platform

[zhoub]

The config.h generated doesn't recognize the ssize_t which is not a basic type as POSIX.

I strongly suggest to use our typedef, actually only long = 4 on Windows but 8 o POSIX, this is the special case.

size_t is equivalent to the uint64_t, which has conflicts on some compilers about template specialization, also the ssize_t.

[pberto]

@panta have a look at this asap, thanks.