ports using existing file descriptors.

the b* byte functions belong in strings.h, not string.h so break
them out of string.h into a new strings.h.  As long as there is no
POSIX or X/OPEN define in use string.h will pull in strings.h.
OK naddy@ deraadt@

need to live somewhere in the meantime.)

Berzerkeley DB code.

This version of the function will always open the secure/shadow/master
password files. Soon, the regular variants of these functions will not.
(Intermixing shadow and regular gets a little weird; don't do that.)
Not using struct spwd and getspwnam functions to reduce churn in callers.
Should just be a one line diff in most places.
ok deraadt

conceptual ok guenther millert nicm

thrkill(2), rolling the kill(2) syscall number with the ABI change to
avoid breaking binaries during during the transition.  thrkill(2) includes
a 'tcb' argument that eliminates the need for locking in pthread_kill()
and simplifies pthread_cancel().  Switch __stack_smash_handler() to use
thrkill(2) and explicitly unblock SIGABRT.
Minor bump to both libc and libpthread: make sure you install a new kernel!
ok semarie@

and eliminate the now superfluous -D option
ok kettenis@ millert@

Userland should get these from /usr/X11R6/include/libdrm.
ok deraadt@ (and suggested by jsg@)

OK semarie@

Hide __xprt_register() and _authenticate(); truncate <rpc/svc_auth.h>
ok deraadt@

wants to use, well.... copy them there.
ok guenther

which results in tame() code placements being much more recognizeable.
tame() can be moved to unistd.h and does not need cpp symbols to turn the
bits on and off.  The resulting API is a bit unexpected, but simplifies the
mapping to enabling bits in the kernel substantially.
vague ok's from various including guenther doug semarie

ports scan by sthen@

Move internal declarations from <db.h> to libc's hidden/db.h
ok kettenis@

for upcoming CompCert port.
Final version of the diff is from kettenis@ with input from jsg@ and tedu@.
ok kettenis@, jsg@, "I agree" millert@

wrapper .h files and asm labels to let internal calls resolve directly and
not be overridable or use the PLT.  Then, apply that framework to most of
the functions in stdio.h, string.h, err.h, and wchar.h.  Delete the
should-have-been-hidden-all-along _v?(err|warn)[cx]? symbols while here.
tests clean on i386, amd64, sparc64, powerpc, and mips64
naming feedback from kettenis@ and millert@
ok kettenis@

symbols that are not longer exported.  (This improves the generated code.)
ok deraadt@

Delete exect(2); it wasn't portable across archs and nothing used it.
ports test build by naddy@
ok deraadt@ kettenis@

ok deraadt

- MATH_ERRNO, MATH_ERREXCEPTION and math_errhandling
- Optional FP_FAST_FMA{,F,L} macros if fma() executes as fast or faster
than (x * y) + z;  which in practice is achievable if gcc implements
__FP_FAST_FMA{,F,L}
Reported by John Marino @ DragonFlyBSD.

The man page was already correct.

prototype to match other prototypes in the file.  OK guenther@ deraadt@

Add timezone and daylight symbols for XSI compatibility.

ok millert@

that should never have been installed.

What's worse, the tzfile.h that gets installed is over 20 years old
and doesn't match the real tzfile.h in libc/time.  This makes the
tree safe for /usr/include/tzfile.h removal.  The TM_YEAR_BASE
define has been moved to time.h temporarily until its usage is
replaced by 1900 in the tree.  Actual removal of tzfile.h is pending
a ports build.  Based on a diff from deraadt@

No actual change, but makes it easier to reuse the code elsewhere.
Suggested by Andre Smagin

builds will have a bogus /usr/include/openssl/openssl as found by naddy. ok jca@

ok jca sthen

OK tedu@ kettenis@

for a couple decades.  Keep the OSIOCGIFCONF ioctl to support COMPAT_LINUX
but move the rest of the Linux-specific ioctl() handling into linux_socket.c
This lets struct osockaddr finally move from sys/socket.h to protocols/talkd.h
ok krw@ deraadt@ mpi@

but safer not to wraparound by accident.
ok deraadt millert miod

superflous '*' after '/*' and adding blank after terminating '$'.
Also eases parsing of the lines by simple awk scripts.
Aesthetic approval from tedu@.

include <sys/param.h> (to operate in legacy mode) or if it wishes to operate
in the POSIX world use <limits.h>
ok guenther millert doug naddy

of the functions prototyped here exist in libc, making it useless.

not be in scope, so hardcode as 256.  Other options have more downside.

This hides the unavoidably cruddy sys/param.h namespace in some programs.
Little impact, because many programs are cruddy and still get it via
other includes.
ports testing thanks to sthen and naddy
ok guenther millert

instead, #define to __builtin_alloca. if that doesn't work, you're hosed.
from an old discussion about the perils of alloca. (don't use alloca!)