fnmatch(): Remove exponential behaviour as in sh r229201.

The old code was exponential in the number of asterisks in the pattern.
However, once a match has been found upto the next asterisk, the pre

fnmatch(): Remove exponential behaviour as in sh r229201.

The old code was exponential in the number of asterisks in the pattern.
However, once a match has been found upto the next asterisk, the previous
asterisks are no longer relevant.

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Merge ^/head r287878 through r288034.

Use ANSI C prototypes. Eliminates -Wold-style-definition warnings.

Merge head r233826 through r256722.

IFC @256277

Approved by: ken (mentor)

IFC @ r255692

Comment out IA32_MISC_ENABLE MSR access - this doesn't exist on AMD.
Need to sort out how arch-specific MSRs will be handled.

Merge from head

IFC @ r255209

According to POSIX \ in the fnmatch(3) pattern should escape
any character including '\0', but our version replace escaped '\0'
with '\\'.
I.e. fnmatch("\\", "\\", 0) should not match while fnmatch("

According to POSIX \ in the fnmatch(3) pattern should escape
any character including '\0', but our version replace escaped '\0'
with '\\'.
I.e. fnmatch("\\", "\\", 0) should not match while fnmatch("\\", "", 0)
should (Linux and NetBSD does the same). Was vice versa.

PR: 181129
MFC after: 1 week

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IFC @230489 (pending review).

IFC @ r227804

Pull in the virtio drivers from head.

Implement xlocale APIs from Darwin, mainly for use by libc++. This adds a
load of _l suffixed versions of various standard library functions that use
the global locale, making them take an explicit

Implement xlocale APIs from Darwin, mainly for use by libc++. This adds a
load of _l suffixed versions of various standard library functions that use
the global locale, making them take an explicit locale parameter. Also
adds support for per-thread locales. This work was funded by the FreeBSD
Foundation.

Please test any code you have that uses the C standard locale functions!

Reviewed by: das (gdtoa changes)
Approved by: dim (mentor)

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Update to current version of head.

MFC r206711: fnmatch: Fix bad FNM_PERIOD disabling
if an asterisk has been seen.

Example: fnmatch("a*b/*", "abbb/.x", FNM_PATHNAME | FNM_PERIOD)

PR: 116074

fnmatch: Fix bad FNM_PERIOD disabling if an asterisk has been seen.

Example: fnmatch("a*b/*", "abbb/.x", FNM_PATHNAME | FNM_PERIOD)

PR: 116074
MFC after: 1 week

Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.

Remove unused variables and assignments.

Add support for multibyte characters.

* Remove __P and convert to ANSI prototypes.
* Remove 'register'. (some functions had 7+ register functions...)
* Fix SCM ID's.

Style optimization in newly added POSIX range []] conformance, redo
'for' loop as do...while and remove variable unneded now

Add missing FNM_PERIOD check for '[' range
Don't treat !^ as first characters in the range, just as negate sign
[/] never match if FNM_PATHNAME

1) Now conforms POSIX.2 2.8.3.2 requirements about []] pattern
2) Treat unclosed [ range in pattern as regular characters (bash style)

Fix a bug that caused some false mismatches when both FNM_PATHNAME
and FNM_LEADING_DIR were specified and the pattern ended with "*".
Example: pattern="src/usr.sbin/w*", string="src/usr.sbin/watch/wa

Fix a bug that caused some false mismatches when both FNM_PATHNAME
and FNM_LEADING_DIR were specified and the pattern ended with "*".
Example: pattern="src/usr.sbin/w*", string="src/usr.sbin/watch/watch.8,v".
This should match, but did not.

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Eliminate some function calls when locale not used

Speedup in case locale not used