Base of the package distributed with BSD licence:
http://eu.conecta.it/paper/BSD_licence.html

pstdint.h is copyright Paul Hsieh and contains it's licence as part of the
header.

Additionally, MSVS did not have getopt functionality, so I dug one up from old
Apache sources. This means that whatever license and restrictions contained
therein apply to the windows build. I didn't bother to paste the license here,
so go and see for yourself (look at getopt.h and getopt.c).
