'RELENG_5_3_0_RELEASE'.

This commit was manufactured to restore the state of the 5.3-RELEASE image.

that this provokes. "Wherever possible" means "In the kernel OR NOT
C++" (implying C).

There are places where (void *) pointers are not valid, such as for
function pointers, but in the special case of (void *)0, agreement
settles on it being OK.

Most of the fixes were NULL where an integer zero was needed; many
of the fixes were NULL where ascii <nul> ('\0') was needed, and a
few were just "other".

Tested on: i386 sparc64

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

comment.

NetBSD Rev. 1.9 and 1.7

Reviewed by:		phk
Obtained from:		NetBSD

from "unix" back to "local".  Add some compat stuff so both
ways work for some time.

Reviewed by:    phk
Approved by:    imp (UPDATING)
Requested by:   iedowse, lukem@netbsd.org

I believe have made all of libc .c's as consistent as possible.

`nc_error' variables. Move the nc_lock mutex from mt_misc.c to a
static variable within this function, since it is only used here.

Add a new getnetconfigent() error code `NC_NOTFOUND' to report the
case where the specified netid was not found. Set nc_error in all
error cases in getnetconfigent() so that the error messages returned
by nc_(s)perror are always meaningful.

Add a terminating \n to the output of nc_perror() to match both
our manpage and other implementations of this function.

Reviewed by:	deischen, alfred, Martin Blapp <mb@imp.ch>

so that the underscored versions of the pthread functions get
declared.  This removes around 300 lines of 'implicit declaration
of XXX' warnings from the output of a libc build with -Wall.

Reviewed by:	Martin Blapp <mb@imp.ch>, alfred