Log message:
Fix override-as.mk by fixing the path in AS.

This rarely seems to be a problem, but is exposed by building mplayer on a
32-bit x86 platform with USE_CWRAPPERS=yes.  Possibly with Linux tie-ins, my
NetBSD platforms are all 64 bit.

In the failing scenario mplayer attempts (at least at configure time) to use
"as" directly.  This is wrapped by cwrappers, which attempts to execute $AS
explicitly.

The exec fails because $PREFIX/bin/as doesn't exist, and hasn't done for a
long time.

Correct all the tool paths to include the "g" prefix for all these tools.

Log message:
Use C++11 containers in gold for libc++, old ext version doesn't work on
ARM due to lack of long long support.

Log message:
Has race conditions at least on NetBSD.

Log message:
Allow unused static constants with clang.

Log message:
Support the as override specs for cwrappers too.

Log message:
Remove outdated NOT_FOR_PLATFORM.

Log message:
revert binutils/builtin.mk

Log message:
adding devel/py-hgnested

hgnested is a Mercurial extension to work with nested repositories.

It was inspired by the forest extension.

The extension allows to apply common Mercurial commands to all the nested
repositories at once like pull, push etc. It also allows to fetch a complete
tree of repositories through ssh or http.

To enable the "hgnested" extension, create an entry for it in your \ 
hgrc, like
this:

    [extensions]
    hgnested =

See `hg help hgnested` for the complete list of commands.

For more information please visit the following website:

	http://code.google.com/p/hgnested/

Log message:
Use --disable-werror with GCC 4.9, there are a number of issues which have
been fixed upstream, so we will remove this when binutils is updated.

Log message:
Remove MAKE_JOBS_SAFE=no, added for the previous release.  I cannot
trigger a failure up to MAKE_JOBS=24.