Clean up the POSIX namespace of <iconv.h>, <dirent.h>, and <sys/stat.h>.

Some small residue in <sys/stat.h> remains for older specs, due to the
kind of bumpy history of that header between issues 6

Clean up the POSIX namespace of <iconv.h>, <dirent.h>, and <sys/stat.h>.

Some small residue in <sys/stat.h> remains for older specs, due to the
kind of bumpy history of that header between issues 6 and 7. Namely,
struct timespec should not be defined in these cases. But this is good
enough for now.

Thanks to zrj for testing with a full dports bulk.

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Fix visibility of various functions in a number of headers.

The following functions were moved from XSI into the base with
POSIX 200809:

catclose(), catgets(), catopen(), dlclose(), dlerror(), dlop

Fix visibility of various functions in a number of headers.

The following functions were moved from XSI into the base with
POSIX 200809:

catclose(), catgets(), catopen(), dlclose(), dlerror(), dlopen(),
dlsym(), fchdir(), getpgid(), getsid(), getsubopt(), iconv(),
iconv_close(), iconv_open(), lchown(), mkstemp(), nl_langinfo(),
poll(), pread(), pwrite(), strdup(), strfmon(), tcgetsid(),
truncate(), and waitid().

This commit adjusts our headers to reflect that, i.e. specifying
_POSIX_C_SOURCE=200809 is now enough to expose their prototypes.

The checking of __XSI_VISIBLE's value (ranges) for XSI functions
could certainly be better (generally in our headers).

Also, we don't yet have waitid().

This change was build tested with around 8000 ports (until the
bulk build choked on a jdk7 memory leak (I suppose) while building
textproc/fop). The glibc conformance test suite thinks this
commit is correct, too.

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Remove duplicate includes in <iconv.h> and <sys/socket.h>.

iconv sync 8/x: FreeBSD SVN 281550

Remove the const qualifier from iconv(3) to comply with POSIX:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/iconv.html
Adjust all code that calls icon

iconv sync 8/x: FreeBSD SVN 281550

Remove the const qualifier from iconv(3) to comply with POSIX:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/iconv.html
Adjust all code that calls iconv

Note: The libcpp Makefile cflag was added because the host iconv.h
header was getting pulled in. This always should have been the
src version of iconv.h, but the error wasn't exposed until now.

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iconv: Sync#2 - Support ICONV_{GET,SET}_ILSEQ_INVALID

Add ICONV_{GET,SET}_ILSEQ_INVALID iconvctl. GNU iconv returns EILSEQ
when there is an invalid character in the output codeset while it is
valid

iconv: Sync#2 - Support ICONV_{GET,SET}_ILSEQ_INVALID

Add ICONV_{GET,SET}_ILSEQ_INVALID iconvctl. GNU iconv returns EILSEQ
when there is an invalid character in the output codeset while it is
valid in the input. However, POSIX requires iconv() to perform an
implementation-defined conversion on the character. So, Citrus iconv
converts such a character to a special character which means it is
invalid in the output codeset.

This is not a problem in most cases but some software like libxml2
depends on GNU's behavior to determine if a character is output as-is
or another form such as a character entity (&#NNN;).

Taken verbatim from:
FreeBSD SVN 258537 (24 NOV 2013)

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iconv: Sync#1 with FreeBSD (minor)

This fixes a couple of minor bugs and removes WITH_LIBICONV_COMPAT
garbage, as seen in:
FreeBSD SVN 256833 (21 OCT 2013)
FreeBSD SVN 257583 (03 NOV 2013)
FreeBSD S

iconv: Sync#1 with FreeBSD (minor)

This fixes a couple of minor bugs and removes WITH_LIBICONV_COMPAT
garbage, as seen in:
FreeBSD SVN 256833 (21 OCT 2013)
FreeBSD SVN 257583 (03 NOV 2013)
FreeBSD SVN 257858 (08 NOV 2013)

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locales, libconv: Sync with FreeBSD (extensive reach)

What started out as a relatively simply upgrade to libiconv finally
resulted in a simultaneous overhaul to locales, strings, and stdio.
All of t

locales, libconv: Sync with FreeBSD (extensive reach)

What started out as a relatively simply upgrade to libiconv finally
resulted in a simultaneous overhaul to locales, strings, and stdio.
All of these are interdependent and there is no way to upgrade them
individually or in steps.

These cases are similar to what happened with libm where significant
syncing came from NetBSD previously, rendering contributions from
FreeBSD difficult. Libiconv and locales (both ancient) are now in
sync with FreeBSD HEAD.

As several headers were signficantly updated and the mtree was updated
to accommodate the new include/xlocale directory, this commit will
require a full world build. It also may cause some dports to no longer
build due to prototype differences, but the dports will be adjusted.

The regexp library was not being used. It was removed from FreeBSD four
years ago. Since it required collate updates, I took the opportunity to
remove it completely by adding re_comp functionality to 4.3 compat
library like FreeBSD did.

__DragonFly_version has been bumped to 500300.

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Initial import of binutils 2.22 on the new vendor branch

Future versions of binutils will also reside on this branch rather
than continuing to create new binutils branches for each new version.

Add citrus backend code and iconv front end. This is intentionally
not hooked into the build yet.

Obtained-from: NetBSD / Citrus Project