bsd.own.mk: rename GCC_NO_* to CC_WNO_*

Rename compiler-warning-disable variables from
GCC_NO_warning
to
CC_WNO_warning
where warning is the full warning name as used by the compiler.

GCC_NO_IMPL

bsd.own.mk: rename GCC_NO_* to CC_WNO_*

Rename compiler-warning-disable variables from
GCC_NO_warning
to
CC_WNO_warning
where warning is the full warning name as used by the compiler.

GCC_NO_IMPLICIT_FALLTHRU is CC_WNO_IMPLICIT_FALLTHROUGH

Using the convention CC_compilerflag, where compilerflag
is based on the full compiler flag name.

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introduce some common variables for use in GCC warning disables:

GCC_NO_FORMAT_TRUNCATION -Wno-format-truncation (GCC 7/8)
GCC_NO_STRINGOP_TRUNCATION -Wno-stringop-truncation (GCC 8)
GCC_NO_STRI

introduce some common variables for use in GCC warning disables:

GCC_NO_FORMAT_TRUNCATION -Wno-format-truncation (GCC 7/8)
GCC_NO_STRINGOP_TRUNCATION -Wno-stringop-truncation (GCC 8)
GCC_NO_STRINGOP_OVERFLOW -Wno-stringop-overflow (GCC 8)
GCC_NO_CAST_FUNCTION_TYPE -Wno-cast-function-type (GCC 8)

use these to turn off warnings for most GCC-8 complaints. many
of these are false positives, most of the real bugs are already
commited, or are yet to come.


we plan to introduce versions of (some?) of these that use the
"-Wno-error=" form, which still displays the warnings but does
not make it an error, and all of the above will be re-considered
as either being "fix me" (warning still displayed) or "warning
is wrong."

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prune disabled XIDLE support. the required X server extension hasn't been
around for a couple decades now. even if someone wanted to modernize this,
it wouldn't be appropriate for NetBSD, since we do

prune disabled XIDLE support. the required X server extension hasn't been
around for a couple decades now. even if someone wanted to modernize this,
it wouldn't be appropriate for NetBSD, since we don't want programs in base
to be linked against X libs.

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PR/18929: Kimmo Suominen: rpc.rusersd ignores utmpx

Disable the linking with X11 libraries.
No userland should be linked against X11.

use CPPFLAGS instead of CFLAGS

merge lite-2 Makefiles (rcsids), and turn on WARNS for all of libexec.

Fix WARNS problems. sigsetjmp() was missing an argument.

- Makefile cleanups

RCS id police.

Install manpage as foo(8) as well as rpc.foo(8), a convenient shorthand.
Also make sure that foo and rpc.foo are mentioned in the NAME section.

specify man pages the new way.

Look for X11 in various likely places.
From Thomas Eberhardt, who adapted it from similar code in gxditview.

don't need -lutil

Build rnusers XDR's into librpcsvc and use them.

Remove support for vers 1 interface. Add vers 3 interface support. Fix ver 2 support to interoperate with Sun's.

Add RCS identifiers, remove some completely useless RCS logs and patchkit
headers, and a few other insignificant changes.

use XIDLE extension (if present)

Add man page.

No need to link with -lrpc

Add rpc.rstatd, rpc.rusersd, and rpc.rwalld.