Last update: Sun Apr 13 11:02:42 PDT 2003

  The directory "modules" contains a checkout of the core components
of Mac OS X 10.2.5. The kernel is called "xnu", and the C library is
"Libc". Instructions for building an incorporating these components
are outside the scope of this document

  Please see http://www.opensource.apple.com/apsl/ for the current
text of the Apple Public Source License, which covers a significant
portion of the code in Darwin, and to register with Apple, which will
give you the ability to download source directly