mknative-gcc for GCC 12.4.0 and everyone except ia64.

mknative-gcc for GCC 12.3.0 on earmv4*, and powerpc64.

mknative-gcc for GCC 10.5.0.

regen everything for GCC 10.4.0.

install experimental/* and ext/opt_random.h. they're expected to
be there (and the latter was removed by accident.)

regen for everyone (also picks up missing tgmath.h for many ports.)

fixes build

install experimental/* and ext/opt_random.h. they're expected to
be there (and the latter was removed by accident.)

regen for everyone (also picks up missing tgmath.h for many ports.)

fixes build of pkgsrc/databases/mongodb for me.

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mknative-gcc for GCC 10.3 and powerpc ports.

mknative-gcc for gcc 9.3.0 and arm, earmv[467]*, i386, mipseb, mips64*,
and powerpc64.

mknative-gcc for all platforms for GCC 8.4.0.

Enable EOWNERDEAD & ENOTRECOVERABLE in libstdc++

regen for mknative and all platforms. there are a few things
fixed in this, mostly related to tgmath.h or frexp, and some
generated vs hand-edited white space diffs.

regen mknative for powerpc and powerpc64.

regen powerpc64

Switch the iconv(3) prototype to the POSIX conformant variation

Remove const from the 2nd argument.

const char ** and char ** are incompatible types and it was a cost to keep
the technically incomp

Switch the iconv(3) prototype to the POSIX conformant variation

Remove const from the 2nd argument.

const char ** and char ** are incompatible types and it was a cost to keep
the technically incompatible form for a more purist variation. NetBSD was
almost the last alive OS to still keep the const argument (known leftovers:
Minix and Illumos).

Keep the const form for the internal purposes inside citrus and rump.

Address the build breakage fallout in the same change.

There are no ABI changes.

Change accepted by core@.

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regen for ppc64

regen mknative-gcc for GCC 7 and ppc64. libgcc still has problems.

mknative-gcc for GCC 7 and ppc64.

regenerate everything for GCC 6.5.

sh3eb and sh3el had a problem wtih libstdc++ i had to work around for now.

redo mknative-gcc for all ports. main changes include:
- "#define HAVE_CC_TLS 1" for most/all ports, thanks maya@
- "#define _GLIBCXX_HAVE_LDEXPL 1" and "#define _GLIBCXX_HAVE_TGMATH_H 1"
for many

redo mknative-gcc for all ports. main changes include:
- "#define HAVE_CC_TLS 1" for most/all ports, thanks maya@
- "#define _GLIBCXX_HAVE_LDEXPL 1" and "#define _GLIBCXX_HAVE_TGMATH_H 1"
for many ports
- arm64 and amd64 had a broken c++config.h that disabled many things
- configargs.h has more normalisation
- ppc64 has a few things fixed, must have missed several mknative rounds

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switch ppc64 from "long long" == int64 to "long" == int64

rebuild mknative GCC 6.4 for these targets:
arm armeb earmeb earmhf earmhfeb earmv4eb
earmv6 earmv6eb earmv6hf earmv6hfeb
earmv7 earmv7eb earmv7hf earmv7hfeb
hppa ia64 m68000 m68k
mips64eb mips6

rebuild mknative GCC 6.4 for these targets:
arm armeb earmeb earmhf earmhfeb earmv4eb
earmv6 earmv6eb earmv6hf earmv6hfeb
earmv7 earmv7eb earmv7hf earmv7hfeb
hppa ia64 m68000 m68k
mips64eb mips64el mipseb mipsel
powerpc64 sh3eb sh3el vax

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merge mknative files from gcc.old back into gcc.
they're back to being the same again now.

regen for gcc 5.5.

Implement __cxa_thread_atexit and __cxa_thread_atexit_impl. This
functions are used for destructors of thread_local objects.

If a pending destructor exists, prevent unloading of shared objects.
Intr

Implement __cxa_thread_atexit and __cxa_thread_atexit_impl. This
functions are used for destructors of thread_local objects.

If a pending destructor exists, prevent unloading of shared objects.
Introduce __dl_cxa_refcount interface for this purpose. When the last
reference is gone and the object has been dlclose'd before, the
unloading is finalized.

Ideally, __cxa_thread_atexit_impl wouldn't exist, but libstdc++ insists
on providing __cxa_thread_atexit as direct wrapper without further
patching.

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regen mknative for all ports and GCC 5.4 and -current. many ports
were using 5.3 data, and none of them had <stdalign.h>.

mknative-gcc for powerpc64 and GCC 5.4.