The following files are now provided by Newlib:
* arpa/inet.h
* net/if.h
* netinet/in.h
* netinet/tcp.h
* sys/socket.h
* sys/uio.h
* sys/un.h
The <sys/param.h> and <sys/cpuset.h> are now compatible enough to be
used directly.
Update #2833.
The interface alias allows extra IP addresses to be set on and
interface and it also allows the MAC address to be set.
Examples:
ifconfig_em0="inet 10.10.5.33 netmask 255.255.255.0"
ifconfig_em0_alias0="ether 10:22:33:44:55:66"
ifconfig_em0_alias1="inet 10.1.1.111 netmask 0xffffffff"
