Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Provide sysarch(2) prototypes in the MD sysarch.h headers. While I'm
at it, use the ANSI C generic pointer type for the second argument,
thus matching the documentation.

Remove the now extraneous (and now conflicting) function declarations
in various libc sources. Remove now unnecessary casts.

Reviewed by: bde

Eliminate 61 warnings emitted at WARNS=2 (leaving 53 to go).
Only warnings that could be fixed without changing the generated object
code and without restructuring the source code have been handled.

Reviewed by: /sbin/md5

Fix the style of the SCM ID's.
I believe have made all of libc .c's as consistent as possible.

Removed duplicate VCS ID tags, as per style(9).

Use definitions provided in sysarch.h for args structures.

Reviewed by: marcel

$Id$ -> $FreeBSD$

u_int --> unsigned int, remove (now unneeded) <sys/types.h>

oops, forgot to do ``cvs add'' first.