makson pisze:Nie będzie też wielkim odkryciem jak stwierdzę, że MacOS X to w rzeczywistości fork FreeBSD. Ponadto wszystkie systemy (łącznie z Windowsem) wzięły swój kod do obsługi TCP/IP wprost z BSD (liberalna licencja na to pozwala).Reasumując.
Zgodnie z wikipedią to jest dokłdniejsze wytłumaczenie:
"The BSD licenses permit forks to become proprietary software, and some say[who?] that commercial incentives thus make proprietisation almost inevitable. Examples include Mac OS X (based on the proprietary Nextstep and the open source FreeBSD)"
http://en.wikipedia.org/wiki/Fork_(soft ... velopment)
Jako ciekawostkę podam, że na Linuksie można korzystać z GNUstep, który ostatnio był niezbędny przy tworzeniu gry CoreBreach dla Linuksa, ponieważ oryginalna wersja powstała wyłacznie dla Mac OS X:
http://www.phoronix.com/scan.php?page=n ... px=MTAxNjQ
"FreeBSD’s code base has become an integral part of other operating systems such as Mac OS X that have subsequently been certified as UNIX-compliant and have formally received UNIX branding"
"Other operating systems such as Linux and the RTOS VxWorks contain code that originated in FreeBSD. Debian, known primarily for using the Linux kernel, also maintains GNU/kFreeBSD, combining the GNU userspace and C library with the FreeBSD kernel.[37] Darwin, the core of Apple Mac OS X, borrows FreeBSD’s virtual file system, network stack, and components of its userspace. The OpenDarwin project (now defunct), a spin-off of Apple’s Darwin operating system, also included substantial FreeBSD code. Thanks to the permissive FreeBSD License, much of FreeBSD now also forms the basis of Apple Mac OS X and Mac OS X Server.
Mac OS X Server includes the latest technological advances from the open source BSD community. Originally developed at the University of California, Berkeley, the BSD distribution is the foundation of most UNIX implementations today. Mac OS X Server is based largely on the FreeBSD distribution and includes the latest advances from this development community.
—"Apple Mac OS X Server Snow Leopard — UNIX: Open source foundation", "
http://en.wikipedia.org/wiki/FreeBSD