increase TMP_MAX to the equivalent of INT_MAX. it's actually more,
but safer not to wraparound by accident.
ok deraadt millert miod

Add _POSIX_CLOCKRES_MIN and _POSIX2_CHARCLASS_NAME_MAX per POSIX 1003.1-2008

ports build tested by espie@

Fix typo that hid PASS_MAX, TMP_MAX, NL_NMAX, and _XOPEN_{IOV,NAME,PATH}_MAX
defines.

ok deraadt@ millert@

Further standards compliance fixes: export LONG_BIT, WORD_BIT, and
NL_{ARG,LANG,MSG,SET,TEXT}MAX with newer POSIX.
Hide {FLT,DBL}_{DIG,MAX,MIN} and {PASS,TMP,NL_N}_MAX with newer XPG.
Make _POSIX_NGROUPS_MAX and _POSIX_OPEN_MAX conditional on the POSIX
version, like _POSIX_TZNAME_MAX already is.
Add some more _POSIX_* and _XOPEN_* 'specified' limits.

ok kettenis@

Define _POSIX_TZNAME_MAX to 6 if the user requested POSIX 1003.1-2001.

ok millert@

Define _POSIX_HOST_NAME_MAX and HOST_NAME_MAX.

ok krw@, laurent@

Move TTY_NAME_MAX and LOGIN_NAME_MAX to sys/syslimits.h
Use correct values for _POSIX_TTY_NAME_MAX and _POSIX_LOGIN_NAME_MAX
Define MAXLOGNAME in terms of LOGIN_NAME_MAX
OK krw@

First step in include files overhaul. Use __FOO_VISIBLE (as defined
in sys/cdefs.h) instead of _FOO_SOURCE. Also fix several namespace
pollution issues, including the byte order defines. OK deraadt@

According to POSIX, _POSIX_PATH_MAX should be 256 but _POSIX_SYMLINK_MAX
should only be 255. You would think they would be the same but you'd be
wrong.

Define _POSIX_SYMLINK_MAX and SYMLINK_MAX as _POSIX_PATH_MAX and PATH_MAX
respectively instead of duplicating their values.

Updates based on Single Unix; OK deraadt@
o _POSIX_CHILD_MAX increased to 25
o _POSIX2_RE_DUP_MAX renamed _POSIX_RE_DUP_MAX
o _POSIX_SYMLINK_MAX and SYMLINK_MAX added (same as PATH_MAX)
o _POSIX_SYMLOOP_MAX and SYMLOOP_MAX added (like MAXSYMLINKS)

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rescinded 22 July 1999.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

Introduce a new file, machine/internal_types.h, to hold that specific arch
type characteristics.

internal_types.h will contain only settings invisible from standard C, e.g.,
in the __* or _[A-Z]* namespace, and be reused by files like limits.h.

This allows us to shorten machine/limits.h greatly, as all the common defines
are now in sys/limits.h, plus a small stub in internal_types.h.

Tested on all arches as far as I know.
Approved after discussion with art, millert, deraadt, and others.

Add thread-safety to libc, so that libc_r will build (on i386 at least).
All POSIX libc api now there (to P1003.1c/D10)
(more md stuff is needed for other libc/arch/*)
(setlogin is no longer a special syscall)
Add -pthread option to gcc (that makes it use -lc_r and -D_POSIX_THREADS).
Doc some re-entrant routines
Add libc_r to intro(3)
dig() uses some libc srcs and an extra -I was needed there.
Add more md stuff to libc_r.
Update includes for the pthreads api
Update libc_r TODO

provide TMP_MAX like stdio.h; kleink

Well, as we are heading for a release people are encouraged to rebuild their
entire trees for testing anyway, I might as well do this intrusive touching
of include files now. Added openBSD tags.

Correct a typo in _POSIX_SSIZE_MAX
Correct _POSIX_ARG_MAX; it should define the minimum allowed argument size,
not the supported on (we have sysconf for that)

_POSIX_ARG_MAX 256k after consulting with thorsten

branches: 1.1.1;
Initial revision