fdisk: remove unreachable options 'T' and 't', fix lint warnings

branches: 1.44.2;
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.

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."

branches: 1.42.32;
Don't use "#if defined(__i386__) || defined(__x86_64__)" conditionals
in C source file to define option features.
Define proper options in each Makefile per ${MACHINE_ARCH} variable instead.

Previously if a host is x86 and it has /usr/mdec/mbr file in its system,
tools fdisk implicitly installs it as mbr bootcode even for !x86 targets.

branches: 1.41.6; 1.41.8;
Remove fdisk/mbr for macppc which was blindly pulled from OpenBSD.
It just fakes MBR partition map which contains 1MB FAT16B partition
and ~1GB OpenBSD partition, and we can always create necessary
MBR partitions for OpenFirmware by the fdisk(8) command itself.

Delete GPT partitions if we overwrite with MBR to avoid confusion with disks
that have both MBR and a secondary left over GPT partition signature. From
Mike M. Volokhov

remove mispelt WARNS. (it will be set in ../Makefile.inc "soon")

branches: 1.38.2; 1.38.16;
Make this compile without -Wno-pointer-sign
(Needs updated bootblock.h)

branches: 1.37.4;
WARNS= 4

don't do the -Wno-pointer-sign dance for host programs.

sprinkle some -fno-strict-aliasing and -Wno-pointer-sign with GCC4.

If HOSTPROG is empty, do not pull in libutil, since we do not need it in that
case, and several host platforms do not have libutil. Fixes the build of
these programs as host tools on platforms without libutil.

Turn fdisk(8) into a host tool. Still todo: commit the host-tool
build infrastructure to src/tools/fdisk/.

Make fdisk(8) available on all platforms, since MS-DOS partitioning
is the de-facto standard for many removable media types.

WARNS=2 is the default defined in sbin/Makefile.inc. (thanks wiz)

Remove main() prototype; WARNS=2

Initial import of iyonix port.

The Iyonix is a desktop machine from Castle Technology, based on a 600MHz
XScale[tm] 80321 processor.

* Uses the bootloader from NetBSD/acorn32, which is now 32-bit compatible.
* Currently boots multiuser with a serial console.
* Device support is not yet complete.

With help from abs.

Don't descend into mbr_bootsel.
i386/and64 mbr code is built in arch i386/stand/mbr

x86_64 -> amd64

Compile mbr and mbr_bootsel on x86_64

Added fdisk on hpcarm

fdisk is now useful for macppc, build it

add hpcsh

Build fdisk(8) on netwinder.

fdisk(8) is needed on mvmeppc since PPCBUG uses PeeCee-style MBR
partition info when booting from disk.

playstation2 support

also install on prep.

Also install on cobalt.

Build fdisk also on arc

Oops, needs an operator.

Build fdisk also on hpcmips.

Don't decend into the subdirectory mbr_bootsel except i386,
since it currently doesn't contain MI thing and not compile
on ofppc box (thanks Wolfgang) and probably on bebox box.

branches: 1.13.2;
Build fdisk on bebox and ofppc(replaced powerpc).

Since fdisk/mbr contains a man page, we need to descend into it regardless
of which ${MACHINE} we are.

Add and build a bootselecting MBR (i386).

branches: 1.10.2;
Separate master bootcode from fdisk.

switch to using opendisk(3) from libutil

define WARNS?=1 for all of sbin/*

* support ``short'' names of disks (e.g, ``sd0'') instead of requiring
the full name (e.g, ``/dev/rsd0d'') a la disklabel(8) (where the code
was effectively lifted from ;-)
* prefix hexadecimal numbers in output with '0x'

-- add -b flag for setting fdisk's idea of BIOS geometry from command line
-- cleanup so WARNS=1 works
-- man page updated to reality.

move man pages into share/man.

convert to new RCS Id conventions; reduce my headache

specify man pages the new way.

Add RCS identifiers.

added a 386bsd fdisk program, by julian elischer. (patch 111)