Minimize #includes, particularly to avoid thread_private.h

ok tedu@

Cleanup, no functional change:
1. avoid code duplication in rewinddir() by calling seekdir() directly
2. move __seekdir() into seekdir() and _telldir_unlocked() into telldir()
Both functions were called from nowhere else.
3. remove some unused #include directives and one unused function prototype
ok otto@ millert@

Switch time_t, ino_t, clock_t, and struct kevent's ident and data
members to 64bit types. Assign new syscall numbers for (almost
all) the syscalls that involve the affected types, including anything
with time_t, timeval, itimerval, timespec, rusage, dirent, stat,
or kevent arguments. Add a d_off member to struct dirent and replace
getdirentries() with getdents(), thus immensely simplifying and
accelerating telldir/seekdir. Build perl with -DBIG_TIME.

Bump the major on every single base library: the compat bits included
here are only good enough to make the transition; the T32 compat
option will be burned as soon as we've reached the new world are
are happy with the snapshots for all architectures.

DANGER: ABI incompatibility. Updating to this kernel requires extra
work or you won't be able to login: install a snapshot instead.

Much assistance in fixing userland issues from deraadt@ and tedu@
and build assistance from todd@ and otto@

fix typo in _telldir_unlocked function prototype, to avoid warning.
while there, put all function prototypes in header file.

ok kurt@

fix a libpthread PANIC in seekdir(3) caused by a recursive mutex lock.
remove the recursive lock in __seekdir() and ensure all callers properly
lock dd_lock prior to calling. reported and tested by bernd@
okay marc@ tedu@

zap remaining rcsid.

Kill old files that are no longer compiled.

okay theo

ansify function definitions and zap some `register'

ok millert@

Remove the advertising clause in the UCB license which Berkeley
rescinded 22 July 1999. Proofed by myself and Theo.

Part one of userland __P removal. Done with a simple regexp with some minor hand editing to make comments line up correctly. Another pass is forthcoming that handles the cases that could not be done automatically.

Clean up some -Wall complaints.

Fix RCS ids
Make sure everything uses {SYS,}LIBC_SCCS properly

branches: 1.1.1;
Initial revision