libarchive: fix thread autodetermination for zstd compression format

The libarchive code uses sysconf(3) to determine the number of threads
when 0 has been given as the number of thread to use

MFC after: 3 days

libarchive: merge from vendor branch

Libarchive 3.7.3

New features:
#1941 uudecode filter: support file name and file mode in raw mode
#1943 7-zip reader: translate Windows permissions into UNIX
permissions
#1962 zstd filter now supports the "long" write option
#2012 add trailing letter b to bsdtar(1) substitute pattern
#2031 PCRE2 support
#2054 add support for long options "--group" and "--owner" to tar(1)

Security fixes:
#2101 Fix possible vulnerability in tar error reporting introduced
in f27c173

Important bugfixes:
#1974 ISO9660: preserve the natural order of links
#2105 rar5: fix infinite loop if during rar5 decompression the last
block produced no data
#2027 xz filter: fix incorrect eof at the end of an lzip member
#2043 zip: fix end-of-data marker processing when decompressing zip
archives

PR: 278315 (exp-run)
MFC after: 1 week

Remove $FreeBSD$: one-line sh pattern

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

libarchive: Avoid a build failure with OpenSSL 3.0

This is a minimal workaround; a proper fix will come via a future update
from upstream.

Sponsored by: The FreeBSD Foundation

libarchive: Request the OpenSSL 1.1 API

OPENSSL_API_COMPAT can be used to specify the OpenSSL API version in
use for the purpose of hiding deprecated interfaces and enabling
the appropriate deprecation notices.

This change is a NFC while we're still using OpenSSL 1.1.1 but will
avoid deprecation warnings upon the switch to OpenSSL 3.0.

A future update should migrate to use the OpenSSL 3.0 APIs.

PR: 271615
Reviewed by: emaste
Event: Kitchener-Waterloo Hackathon 202305
Sponsored by: The FreeBSD Foundation

libarchive: fix zstd compression support

The commit 833a452e9 introduced a change that detached
the zstd compression (not decompression) support from base build.

Reported by: kevans
MFC after: 3 days

libarchive: fix mismatch between library and test configuration

I was investigating libarchive test failures on CheriBSD and it turns out
we get a reproducible SIGBUS for test_archive_m5, etc. Debugging this shows
that libarchive and the tests disagree when it comes to the definition of
archive_md5_ctx: libarchive assumes it's the OpenSSL type whereas the test
use the libmd type. The latter is not necessarily aligned enough to store
a pointer (16 bytes for CHERI RISC-V), so we were crashing when storing
EVP_MD_CTX* to an 8-byte-aligned archive_md5_ctx.

To avoid problems like this in the future, factor out the common compiler
flags into a Makefile.inc and include that from the tests Makefile.

Reviewed By: lwhsu
Differential Revision: https://reviews.freebsd.org/D26469

Remove $FreeBSD$: one-line sh pattern

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

libarchive: Avoid a build failure with OpenSSL 3.0

This is a minimal workaround; a proper fix will come via a future update
from upstream.

Sponsored by: The FreeBSD Foundation

libarchive: Request the OpenSSL 1.1 API

OPENSSL_API_COMPAT can be used to specify the OpenSSL API version in
use for the purpose of hiding deprecated interfaces and enabling
the appropriate deprecation notices.

This change is a NFC while we're still using OpenSSL 1.1.1 but will
avoid deprecation warnings upon the switch to OpenSSL 3.0.

A future update should migrate to use the OpenSSL 3.0 APIs.

PR: 271615
Reviewed by: emaste
Event: Kitchener-Waterloo Hackathon 202305
Sponsored by: The FreeBSD Foundation

libarchive: fix zstd compression support

The commit 833a452e9 introduced a change that detached
the zstd compression (not decompression) support from base build.

Reported by: kevans
MFC after: 3 days

libarchive: fix mismatch between library and test configuration

I was investigating libarchive test failures on CheriBSD and it turns out
we get a reproducible SIGBUS for test_archive_m5, etc. Debugging this shows
that libarchive and the tests disagree when it comes to the definition of
archive_md5_ctx: libarchive assumes it's the OpenSSL type whereas the test
use the libmd type. The latter is not necessarily aligned enough to store
a pointer (16 bytes for CHERI RISC-V), so we were crashing when storing
EVP_MD_CTX* to an 8-byte-aligned archive_md5_ctx.

To avoid problems like this in the future, factor out the common compiler
flags into a Makefile.inc and include that from the tests Makefile.

Reviewed By: lwhsu
Differential Revision: https://reviews.freebsd.org/D26469