New POSIX xlocale implementation written from scratch.
Complete in the sense that all POSIX *locale(3) and *_l(3) functions
are included, but in OpenBSD, we of course only really care about
LC_CTYPE

New POSIX xlocale implementation written from scratch.
Complete in the sense that all POSIX *locale(3) and *_l(3) functions
are included, but in OpenBSD, we of course only really care about
LC_CTYPE and we only support ASCII and UTF-8.

With important help from kettenis@, guenther@, and jca@.
Repeated testing in ports bulk builds by naddy@.
Additional testing by jca@, sebastia@, dcoppa@, and others.
OK kettenis@ dcoppa@, and guenther@ on an earlier version.
Riding guenther@'s libc/librthread major bump.

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Adapt things to use __type_t instead of _BSD_TYPE_T_
Add new sys/_types.h header
Include machine/_types.h or sys/_types.h where applicable

Add a few missing functions so that wctype.h/wchar.h are more or less
uptodate, namely, wcsto(u)l(l) family, wcstod, stubs from wctrans/towctrans

crank minor.

okay millert@, jmc@.

major abi changes:

* introduce the mbstate_t typedef.
impacts gnu libiconv, which has already been taken care of.

* Prepare for mb stuff to really exist, replace macro MB_CUR_MAX with
an external v

major abi changes:

* introduce the mbstate_t typedef.
impacts gnu libiconv, which has already been taken care of.

* Prepare for mb stuff to really exist, replace macro MB_CUR_MAX with
an external variable __mb_cur_max (impacts libX11 and various ports).

* use mbstate in all the mb <-> wchar functions with state.
* add a stub iswctype function allowing some ports to compile.

bash and gdiff are missing wcscoll, and need to be told there's no i18n
until this is fixed.

Discussed and matthieu, otto, millert, kettenis, deraadt.

Major libc bump

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isw* classification functions from citrus, with a `stub' implementation
for the default locale.

comments, tests, okay: kettenis@, otto@, jmc@

functions addition -> Minor bump.

There's a large bump

isw* classification functions from citrus, with a `stub' implementation
for the default locale.

comments, tests, okay: kettenis@, otto@, jmc@

functions addition -> Minor bump.

There's a large bump coming in a separate commit.

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introduce some wchar functions (from citrus and an itojun@ diff)
okay deraadt@, cloder@, pvalchev@
thanks to everyone who commented on that.