MFC: r265090

Merge r133175 from upstream:

2008-03-13 Dennis Czeremin <dennis.czeremin@smiths-heimann.com>

PR libstdc++/35566
* include/bits/stl_multimap.h (multimap<>::multimap(_InputIterator,
_InputIterator)): Forward to _M_insert_equal, not _M_insert_unique.

This patch was GPL2 at the time and fixes a regression introduced with
the merge of GCC r129013 in FreeBSD r236829.

Sponsored by: Bally Wulff Games & Entertainment GmbH

MFC r263774:

Revert r263694, and apply a better fix to squelch unnecessary warnings
from clang about possible keywords being treated as identifiers for the
remainder of the translation unit (a.k.a. -Wkeyword-compat), when using
libstdc++ in combination with -Wsystem-headers. This will not only fix
devd, but any C++ program using libstdc++.

MFC r258017, r258429, r258748, r258817:

Merge updates from FSF pre4.3 GCC inspired on Apple's gcc:

Updates to libiberty and mangling.
New align attribute.
Merge Apple updates to libstdc++.

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Fix several clang warnings in libstdc++, which were exposed by the
recent atf import. These changes are purely cosmetic, no functional
change.

MFC after: 1 week

Bring a couple of libstdc++ patches from Apple's llvm-gcc project.

Modified Fri Jul 10 07:44:34 2009 CDT by rafael
backport part of
http://gcc.gnu.org/ml/gcc-cvs/2007-10/msg00118.html

The patch is for libstdc++ and it was GPL2 at the time.

Modified Tue Apr 29 01:20:19 2008 CDT by asl
Backport from mainline (pre-GPLv3).
Fix for sizeof(const void*) > sizeof(unsigned long).

Approved by: jhb (mentor)
MFC after: 2 weeks

Add explicit braces to avoid dangling else in stl_tree.h. This silences
the following warning produced by clang trunk:

In file included from /usr/src/sbin/devd/devd.cc:91:
In file included from /usr/obj/usr/src/tmp/usr/include/c++/4.2/map:64:
/usr/obj/usr/src/tmp/usr/include/c++/4.2/bits/stl_tree.h:987:2: error: add explicit braces to avoid dangling else [-Werror,-Wdangling-else]
else
^

MFC after: 3 days

Update libstdc++ with small updates from the latest rev. (135556)
from the gcc 4.2 branch.
The libraries in the gcc-4_2-branch remained under the LGPLv2.

The changes can be reproduced with the following command:

svn diff svn://gcc.gnu.org/svn/gcc/branches/gcc-4_2-branch/libstdc++-v3
-r 127959:135556

Reviewed by: mm
Approved by: jhb (mentor)
MFC after: 2 weeks

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