Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

libzstd: Explicitly define ZSTD_DISABLE_ASM

On FreeBSD, ZSTD_ASM_SUPPORTED is defined as 0, but on macOS and Linux
it is defined as 1, yet we don't build any of the assembly sources.
Rather than add

libzstd: Explicitly define ZSTD_DISABLE_ASM

On FreeBSD, ZSTD_ASM_SUPPORTED is defined as 0, but on macOS and Linux
it is defined as 1, yet we don't build any of the assembly sources.
Rather than add them just for bootstrapping on non-FreeBSD, explicitly
define ZSTD_DISABLE_ASM so they're not needed and everything is
consistent.

This fixes building a bootstrap LLVM toolchain on non-FreeBSD amd64 (the
only architecture with assembly available).

Reviewed by: emaste, imp
Differential Revision: https://reviews.freebsd.org/D41543

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Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Disable clang 14 warning about bitwise operators in zstd

Parts of zstd, used in openzfs and other places, trigger a new clang 14
-Werror warning:

```
sys/contrib/zstd/lib/decompress/huf_decompress.

Disable clang 14 warning about bitwise operators in zstd

Parts of zstd, used in openzfs and other places, trigger a new clang 14
-Werror warning:

```
sys/contrib/zstd/lib/decompress/huf_decompress.c:889:25: error: use of bitwise '&' with boolean operands [-Werror,-Wbitwise-instead-of-logical]
(BIT_reloadDStreamFast(&bitD1) == BIT_DStream_unfinished)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```

While the warning is benign, it should ideally be fixed upstream and
then vendor-imported, but for now silence it selectively.

MFC after: 3 days

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libprivatezstd: Restrict symbol visibility similar to upstream

We have to relax three symbols to dynamically link zstd(1), but the rest
are the same.

pkgbase: Move libprivatezstd from utilities to runtime

libarchive depends on it by default and tar uses libarchive.
So on a update :
1/ runtime contain tar
2/ runtime have libarchive in shlibs_requi

pkgbase: Move libprivatezstd from utilities to runtime

libarchive depends on it by default and tar uses libarchive.
So on a update :
1/ runtime contain tar
2/ runtime have libarchive in shlibs_required
3/ libarchive packages depends on utilities
4/ utilities depends on runtime
5/ kaboom

All users of libprivatezstd (libarchive related stuff and objcopy/ar)
are already in utilities.

Discussed with: bapt

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Only set WARNS if not defined

This would allow interested parties to do experimental runs with an
environment set appropriately to raise all the warnings throughout the
build; e.g. env WARNS=6 NO_WE

Only set WARNS if not defined

This would allow interested parties to do experimental runs with an
environment set appropriately to raise all the warnings throughout the
build; e.g. env WARNS=6 NO_WERROR=yes buildworld.

Not currently touching the numerous instances in ^/tools.

MFC after: 1 week

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Update to Zstandard 1.4.5

As usual, the full release notes are found on Github:

https://github.com/facebook/zstd/releases/tag/v1.4.5

Notable changes include:

* Improved decompress performance o

Update to Zstandard 1.4.5

As usual, the full release notes are found on Github:

https://github.com/facebook/zstd/releases/tag/v1.4.5

Notable changes include:

* Improved decompress performance on amd64 and arm (5-10%
and 15-50%, respectively).
* '--patch-from' zstd(1) CLI option, which provides something like a very fast
version of bspatch(1) with slightly worse compression. See release notes.

In this update, I dropped the 3-year old -O0 workaround for an LLVM ARM bug;
the bug was fixed in LLVM SVN in 2017, but we didn't remove this workaround
from our tree until now.

MFC after: I won't, but feel free
Relnotes: yes

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Update to Zstandard 1.4.2

The full release notes for 1.4.1 (skipped) and 1.4.2 can be found on Github:

https://github.com/facebook/zstd/releases/tag/v1.4.1
https://github.com/facebook/zstd/rele

Update to Zstandard 1.4.2

The full release notes for 1.4.1 (skipped) and 1.4.2 can be found on Github:

https://github.com/facebook/zstd/releases/tag/v1.4.1
https://github.com/facebook/zstd/releases/tag/v1.4.2

These are mostly minor updates; 1.4.1 purportedly brings something like 7%
faster decompression speed.

Relnotes: yes

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Update to Zstandard 1.3.8

This merge brings in a couple new files, which needed to be attached to the
build; a new dependency on <limits.h>, which must be stubbed; and a name
change in the Context p

Update to Zstandard 1.3.8

This merge brings in a couple new files, which needed to be attached to the
build; a new dependency on <limits.h>, which must be stubbed; and a name
change in the Context parameter constants, from ZSTD_p_foo to ZSTD_c_foo.

Significantly, it fixes a kernel build error with GCC where floating-point
functions were included in the kernel build, by hiding them under the same
compile-time #ifdef that already covered their invocation. That issue was
introduced to FreeBSD in the 1.3.7 update and tracked upstream here:

https://github.com/facebook/zstd/issues/1386

The full 1.3.8 release notes can be found on Github:

https://github.com/facebook/zstd/releases/tag/v1.3.8

Relnotes: yes

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Merge ^/head r339015 through r339669.

Update to Zstandard 1.3.7

Relnotes: yes
Sponsored by: Dell EMC Isilon

lib(private)zstd: Fix riscv build

Link __bswap[ds]i2() intrinsics in to libzstd for riscv, where the C runtime
apparently lacks such intrinsics.

Broken in r330894.

Reported by: asomers
Sponsored b

lib(private)zstd: Fix riscv build

Link __bswap[ds]i2() intrinsics in to libzstd for riscv, where the C runtime
apparently lacks such intrinsics.

Broken in r330894.

Reported by: asomers
Sponsored by: Dell EMC Isilon

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Addd work around for LLVM bug 35023.

Clang crashes when compiling zstd_compress.c with optimization for ARM targets.
https://bugs.llvm.org/show_bug.cgi?id=35023

Merge ^/head r325663 through r325841.

Move zstd from contrib to sys/contrib so it can be used in the
kernel. Adjust the Makefiles that referenced it to the new path.

Sponsored by: Netflix
OK'd by: cem@ and AllanJude@

Follow up on zstd update

Merge ^/head r317808 through r317970.

Build zstandard with threading enabled

Import zstandard 1.1.4 in base

zstandard is a new compression library/tool which is very fast at
compression/decompression

For now import as a private library