adapt to ${CC_WNO_STRINGOP_OVERFLOW}

Use ${CC_WNO_STRINGOP_OVERFLOW} instead of
the older style more complex expressions.

Remove workarounds if they were only for gcc < 10.

dhcp: remove gcc 8 workaround

(if it's needed, add it back using ${CC_WNO_FORMAT_OVERFLOW})

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.

more GCC 10 fixes.

mDNSResponder: another wrong return local address

dhcp: ignore a seemingly impossible stringop overflow

hpacel: avoid maybe uninitialised error that is wrong.

rsh: avoid impossible malloc(0)

udf: cast pointers through (uintptr_t) to fool invalid boundary checks

external/mpl/dhcp: Suppress -Werror=stringop-truncation error

This logic correctly uses strncpy(3) to fully initialize a fixed-width field, and also ensures
NUL-termination on the next line as other users of the field expect.

Add -Werror=stringop-truncation to prevent build failure, when run with MKSANITIZER=yes.

Error was reported when build.sh was run with MKSANITIZER=yes flag.

Reviewed by: kamil@

GCC8 needs -Wno-stringop-overflow also for m68000 (sun2).

external/mpl/dhcp: Fix build failure under LLVM.

-Wno-error= flag now only applies to gcc 8 and not to LLVM based builds.

Reviewed by: kamil@

external/mpl/dhcp: Suppress -Werror=format-overflow error.

Add -Wno-error=format-overflow mdb6.c to prevent build failure.

Error was reported when build.sh was run with MKLIBCSANITIZER=yes flag.

Reviewed by: kamil@

Looks like builtin_object_size does not work properly on sh3...

branches: 1.1.2; 1.1.4;
Add build glue.

more GCC 10 fixes.

mDNSResponder: another wrong return local address

dhcp: ignore a seemingly impossible stringop overflow

hpacel: avoid maybe uninitialised error that is wrong.

rsh: avoid impossible malloc(0)

udf: cast pointers through (uintptr_t) to fool invalid boundary checks

external/mpl/dhcp: Suppress -Werror=stringop-truncation error

This logic correctly uses strncpy(3) to fully initialize a fixed-width field, and also ensures
NUL-termination on the next line as other users of the field expect.

Add -Werror=stringop-truncation to prevent build failure, when run with MKSANITIZER=yes.

Error was reported when build.sh was run with MKSANITIZER=yes flag.

Reviewed by: kamil@

GCC8 needs -Wno-stringop-overflow also for m68000 (sun2).

external/mpl/dhcp: Fix build failure under LLVM.

-Wno-error= flag now only applies to gcc 8 and not to LLVM based builds.

Reviewed by: kamil@

external/mpl/dhcp: Suppress -Werror=format-overflow error.

Add -Wno-error=format-overflow mdb6.c to prevent build failure.

Error was reported when build.sh was run with MKLIBCSANITIZER=yes flag.

Reviewed by: kamil@

Looks like builtin_object_size does not work properly on sh3...

branches: 1.1.2; 1.1.4;
Add build glue.

external/mpl/dhcp: Suppress -Werror=stringop-truncation error

This logic correctly uses strncpy(3) to fully initialize a fixed-width field, and also ensures
NUL-termination on the next line as other users of the field expect.

Add -Werror=stringop-truncation to prevent build failure, when run with MKSANITIZER=yes.

Error was reported when build.sh was run with MKSANITIZER=yes flag.

Reviewed by: kamil@

GCC8 needs -Wno-stringop-overflow also for m68000 (sun2).

external/mpl/dhcp: Fix build failure under LLVM.

-Wno-error= flag now only applies to gcc 8 and not to LLVM based builds.

Reviewed by: kamil@

external/mpl/dhcp: Suppress -Werror=format-overflow error.

Add -Wno-error=format-overflow mdb6.c to prevent build failure.

Error was reported when build.sh was run with MKLIBCSANITIZER=yes flag.

Reviewed by: kamil@

Looks like builtin_object_size does not work properly on sh3...

branches: 1.1.2; 1.1.4;
Add build glue.

GCC8 needs -Wno-stringop-overflow also for m68000 (sun2).

external/mpl/dhcp: Fix build failure under LLVM.

-Wno-error= flag now only applies to gcc 8 and not to LLVM based builds.

Reviewed by: kamil@

external/mpl/dhcp: Suppress -Werror=format-overflow error.

Add -Wno-error=format-overflow mdb6.c to prevent build failure.

Error was reported when build.sh was run with MKLIBCSANITIZER=yes flag.

Reviewed by: kamil@

Looks like builtin_object_size does not work properly on sh3...

branches: 1.1.2; 1.1.4;
Add build glue.

external/mpl/dhcp: Fix build failure under LLVM.

-Wno-error= flag now only applies to gcc 8 and not to LLVM based builds.

Reviewed by: kamil@

external/mpl/dhcp: Suppress -Werror=format-overflow error.

Add -Wno-error=format-overflow mdb6.c to prevent build failure.

Error was reported when build.sh was run with MKLIBCSANITIZER=yes flag.

Reviewed by: kamil@

Looks like builtin_object_size does not work properly on sh3...

branches: 1.1.2;
Add build glue.

external/mpl/dhcp: Suppress -Werror=format-overflow error.

Add -Wno-error=format-overflow mdb6.c to prevent build failure.

Error was reported when build.sh was run with MKLIBCSANITIZER=yes flag.

Reviewed by: kamil@

Looks like builtin_object_size does not work properly on sh3...

branches: 1.1.2;
Add build glue.

Looks like builtin_object_size does not work properly on sh3...

branches: 1.1.2;
Add build glue.

branches: 1.1.2;
Add build glue.