CVS log for src/lib/libc/resolv/Makefile.inc

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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.

Mostly merge changes from HEAD upto 20200411

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."

More cases to disable gcc-8 warnings only when we're using gcc>=8

Add -Wno-error for gcc-8 warnings

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

"soon" is "now". Remove all __indr_reference crap.

Catch up with now-somewhat-dated netbsd-4. These changes took longer
than expected for me to actually get around to merging.

Add missing BIND 9.4.x include file and library changes (requested by
tron in ticket #662).

Update BIND to version 9.4.1 (requested by christos in ticket #602).
Thanks to tron for the patches, upgrade script and testing.

we don't need <irs.h>

merge in resolver portion of bind-9.4.0-rc2

Jump through taller hoops to provide binary compatibility with programs
compiled with the older and shorter _res. We now use _nres internally
which is the new and bigger one.  We define a _res which is the old
size one if COMPAT__RES is set, and then we consult selected values from
this old _res in res_init(), to emulate the old behavior.

Add glue files.