Do you have a guarantee that random() will give you the same sequence on different endians, on different libcs, on different 32/64bit arches, on different OSes

Do you have a guarantee that random() will give you the same sequence on different endians, on different libcs, on different 32/64bit arches, on different OSes or even dists? The expectation of reproducability is probably lost if you switch any of the above "details", so the problem with bad-random-generation is that it's not only the people who thinks the entropy is good in it that are wrong, the ones that think rand() didn't change in the last 40(?) years are equally wrong.