[v3] c++0x <mutex> and <condition_variable>

[Chris Fairles]

Ok. I think these are basically ready as a first draft. Nearly
complete implementations of both. Still missing the generic
lock/try_lock.

One thing that's unclear to me is how to determine the targets in the
testcase's dg-do run option. I'm just using what I think Benjamin (or
whoever did the initial commit) was using. I'm not sure how to go
about determining whether its still correct or not.

Tested x86_64.

Chris
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: Changelog_mutex_cond_var.txt
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20080902/b4779dc2/attachment.txt>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: mutex_cond_var_patch.txt
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20080902/b4779dc2/attachment-0001.txt>