2 - HAVE_FTP_NAMES if FTP_NAMES et al in <arpa/ftp.h>
3 - replace getopt() if optreset (BSD) or getoptreset() (irix)
5 - IF_NAMESIZE not available on darwin
6 - inet_net_pton() ipv6 support
8 support lfcompile(5) (large files) on solaris
10 fix internalls (actually fts) on IRIX
12 enable utmp stuff (need to make it portable)
14 enable wtmp stuff (need to make it portable)
16 enable kerberos support once its fixed?
18 add getenv(3) to replace putenv(3) cruft?
20 barf if neither flock() nor lockf() is available